JP2020142400A - Mobile batcher plant - Google Patents

Abstract

To provide a mobile batcher plant that can eliminate inconvenience of operation disability due to noises and whose degree of freedom of selecting position of use is high.SOLUTION: A mobile batcher plant 1 has, on the loading platform 2 of a medium-duty truck, a powder storage device 3, an aggregate storage device 4, a water tank 5, a mixing device 6 in which super hardening cement, aggregates and water are mixed, an additive tank 65, a screw conveyor 7 that conveys super hardening cement from the powder storage device 3 to the mixing device 6, a belt conveyor 8 that conveys aggregates from the aggregate storage device 4 to the mixing device 6, a self-priming centrifugal pump 66 that supplies water from the water tank 5 to the mixing device 6, a self-priming centrifugal pump 71 that supplies additive aqueous solution from the additive tank 65 to the mixing device 6 and a control device 10 that controls all the devices. The mixing device 6 is provided with a noise reduction mechanism for reducing noises.SELECTED DRAWING: Figure 1

Description

The present invention relates to a mobile batcher plant that is used, for example, for producing ready-mixed concrete and is mounted on a truck or the like and can be moved.

Recently, infrastructure such as bridges and roads constructed during the period of high economic miracle is aging, and aging measures such as repair and maintenance are required.

For example, on urban expressways, damage requiring repair, such as cracks, depressions and corrosions on viaduct slabs and cracks and corrosion on girders, is increasing. When repairing cracks and depressions in concrete floor slabs, the passage of vehicles in the target section is restricted, and repair work such as filling and backfilling of fillers is performed at several to dozens of repair points. Although ready-mixed concrete is used for such repairs, the amount of ready-mixed concrete used for repairs is often 1 m ³ or less per location. In addition, the optimum composition of ready-mixed concrete often differs depending on the size and position of cracks and depressions to be repaired. In addition, due to road traffic restrictions, it is often necessary to bring in ready-mixed concrete at night or on holidays. Generally, ready-mixed concrete is manufactured in a ready-mixed concrete factory equipped with a ready-mixed concrete manufacturing plant, loaded on a mixer truck, and transported to a casting site while being agitated.

However, ready-mixed concrete plant, in many cases you have set the orders lower limit amount of about 1m ³ as a condition of receiving an order. In addition, if the amount of ready-mixed concrete to be shipped is small, quality assurance may not be performed. In addition, extra charges are often applied to special formulations and shipments at night or early in the morning. Due to these circumstances, it is not realistic to order ready-mixed concrete for repair from a ready-mixed concrete factory.

By the way, in road repair work, ready-mixed concrete with a short hardening time, such as ultrafast hard concrete, may be used in order to lift traffic restrictions at an early stage. Since the time from kneading to hardening of ultrafast hard concrete is extremely short, it is necessary to knead the concrete at the casting site. As a ready-mixed concrete manufacturing plant that can be kneaded on-site, there are multiple chambers in which coarse aggregate, fine aggregate, and fast-hardening cement are housed in a box-shaped vessel that is pivotally supported by the frame of the vehicle. A mobile plant having a structure that accommodates a material before kneading concrete and is movable to the site is disclosed (see Patent Document 1).

This mobile plant is formed at the bottom of the rear side of the vessel by a plurality of screw conveyors and feeders arranged extending in the width direction, and the material guided from each chamber is conveyed to the rear side while stirring. It is equipped with a transport mixing / stirring device. On the rear side of the transport mixing / stirring device, a kneading device for adding water and an admixture to the coarse aggregate, fine aggregate and cement derived from the transport mixing / stirring device is connected.

The kneading device is swingably connected to the lower part of the rear end of the vessel, and is installed so as to extend rearward from the lower end of the vessel during operation. In this kneading device, five kneading shafts extending in the width direction and driven by a prime mover are arranged in five rows in the front-rear direction inside a flat box-shaped casing that is long in the front-rear direction. A hook-shaped blade formed of a bent rod member and a plurality of plate-shaped scraping mixing blades attached at an angle to the kneading shaft are fixed to these kneading shafts. The kneading device configured in this way uses the hook-shaped blade that is rotationally driven and the plate-shaped scraping mixing blade to move the concrete material, water, and admixture in the casing in the width direction and backward. Stir and mix while moving. The ultrafast-hardened ready-mixed concrete produced by mixing coarse aggregate, fine aggregate, quick-hardening cement, water, and an admixture in this kneading device is discharged from a carry-out port provided at the rear end of the casing.

The kneading device of the ready-mixed concrete manufacturing facility is provided with an opening on the upper surface of the casing so that the water and admixture supply pipes can be inserted into the inside when the kneading device extends behind the vessel during operation.

Further, in the above-mentioned ready-mixed concrete manufacturing facility, a cement chamber for accommodating quick-hardening cement is formed at the rear of the vessel, and a manhole for pouring fast-hardening cement is provided in the ceiling of the cement chamber. ..

Japanese Unexamined Patent Publication No. 56-99616

However, in the conventional mobile plant, the kneading device arranged behind the vessel has a kneading shaft arranged in a casing having an opening, so that the kneading shaft is driven. There is a problem that the noise at the time of the operation is emitted to the surroundings through the opening. In particular, the shaving noise generated when the aggregate, which is a concrete material, is caught between the casing and the blade becomes a loud noise. Mobile plants need to be installed and operated near the concrete placement location, so if the concrete placement site is close to a residential area, hospital, educational institution, etc., it will operate due to noise. It is not allowed and there is a risk that the construction cannot be carried out. That is, although this mobile plant is mobile, there are cases where concrete cannot be manufactured at the destination, and there is a problem that the degree of freedom in selecting the position to be used is low.

Further, in the above-mentioned conventional mobile plant, when the quick-hardening cement is put in, the lid provided on the ceiling behind the vessel is removed to open a manhole, and the quick-hardening cement is put into the cement chamber from the manhole. At this time, the quick-hardening cement, which is a powder, may scatter and pollute the surrounding environment.

Therefore, an object of the present invention is to provide a mobile batcher plant that can eliminate the inconvenience of being unable to operate due to noise and has a high degree of freedom in selecting the position of use. Another object of the present invention is to provide a mobile batcher plant that can prevent powder from scattering and has little impact on the environment.

In order to solve the above problems, the mobile batcher plant of the present invention includes a powder storage device for storing a premixed powder material and a powder storage device.
Aggregate storage device for storing aggregate and
A water storage device that stores water and
A mixing device that mixes the powder material, aggregate, and water,
A powder transfer device that transports powder materials from the powder storage device to the mixing device,
An aggregate transport device that transports aggregates from the aggregate storage device to the mixing device, and
A water supply device that supplies water from the water storage device to the mixing device,
A control device that controls the operation of the powder storage device, the aggregate storage device, the water storage device, the mixing device, the powder transfer device, the aggregate transfer device, and the water supply device.
Supports at least one of the above powder storage device, aggregate storage device, water storage device, mixing device, powder transfer device, aggregate transfer device, water supply device, and control device, and is formed so as to be mounted on a vehicle. With the support structure
Reduces noise generated from at least one of the powder storage device, aggregate storage device, water storage device, mixing device, powder transfer device, aggregate transfer device, water supply device, control device, and support structure. It is characterized by having a noise reduction mechanism.

According to the above configuration, the powder material previously mixed and stored in the powder storage device is transferred to the mixing device by the powder transfer device under the control of the control device. Further, the aggregate stored in the aggregate storage device is transported to the mixing device by the aggregate transport device under the control of the control device. Further, the water stored in the water storage device is conveyed to the mixing device by the water supply device under the control of the control device. The mixing device mixes the powder material, aggregate and water under the control of the control device. As a result, ultrafast hard concrete, ordinary concrete, mortar, grout and the like are produced. The manufactured ultrafast hard concrete or the like is discharged from the mixing device and placed at a predetermined casting position. According to the mobile batcher plant of the present invention, a powder storage device, an aggregate storage device, a water storage device, a mixing device, a powder transfer device, an aggregate transfer device, a water supply device, and a control device are provided by a noise reduction mechanism. And since the noise generated from at least one of the support structures is reduced, the noise during operation is effectively reduced. Therefore, this mobile batcher plant can be operated without any problem at a position close to a residential area, a hospital, an educational institution, or the like, where noise prevention is required. As a result, the degree of freedom in selecting the position to be used is high, and the operating efficiency can be improved.

In the mobile batcher plant of one embodiment, the mixing device has a generally cylindrical mixing tank and blades that are rotationally driven in the mixing tank.
The noise reduction mechanism is configured by a sliding member provided on the blade, which is made of a flexible material and slides in constant contact with the bottom surface or the inner surface of the mixing tank.

According to the above embodiment, in the mixing device, the powder material, the aggregate, and the water are put into a mixing tank having a substantially cylindrical shape. These powder materials, aggregates, and water are mixed by a blade that is rotationally driven in the mixing tank. Here, since the blade is provided with a sliding member formed of a flexible material and always in contact with and slides on the bottom surface or the inner surface of the mixing tank, the blade and the mixing tank are provided when the blade is driven. It becomes difficult to form a gap between the two. This effectively prevents the inconvenience of biting aggregate between the blade and the mixing tank. As a result, the squealing noise generated by the biting of the aggregate between the blade and the mixing tank is effectively prevented. By forming the noise reduction mechanism by the sliding member in this way, the noise caused by the mixing device is effectively prevented.

The mobile batcher plant of one embodiment is installed at a position corresponding to the bottom surface of the mixing tank of the blade, and has a bottom sliding member that is in constant contact with the bottom surface of the mixing tank and the inside of the mixing tank of the blade. It is installed at a position corresponding to the side surface and has a side sliding member that is always in contact with the inner side surface of the mixing tank.

According to the above embodiment, the bottom sliding member installed at a position corresponding to the bottom surface of the mixing tank of the blade is always in contact with the bottom surface of the mixing tank, so that the blade and the mixing tank are driven when the blade is driven. It becomes difficult to form a gap with the bottom surface. Further, the side sliding member installed at a position corresponding to the inner surface of the mixing tank of the blade always contacts the inner surface of the mixing tank, so that when the blade is driven, the blade and the inner surface of the mixing tank are contacted. It becomes difficult to form a gap between the two. This effectively prevents the inconvenience of the aggregate being bitten between the blade and the bottom surface and the inner surface of the mixing tank, and effectively prevents the squealing noise generated by the biting of the aggregate. To.

In the mobile batcher plant of one embodiment, the mixing device includes a load cell for measuring the mass of the material charged into the mixing tank and a posture holding device for holding the posture of the mixing tank.

According to the above embodiment, since the posture of the mixing tank is held by the posture holding device in the mixing device, the mass of the material put into the mixing tank of the mixing device can be measured with high accuracy by the load cell. it can.

In the mobile batcher plant of one embodiment, the powder material is transferred to the mixing device by the powder transfer device, water is supplied by the water supply device, and the powder material and water are mixed by the mixing device. And the pre-kneading process to form the mixture
After the pre-kneading step, the aggregate is transported by the aggregate transport device, and the aggregate is added to the mixture.
The noise reduction mechanism is configured by a control device that executes an aggregate mixing step of mixing the aggregate and the mixture added in the aggregate adding step.

According to the above embodiment, the pre-kneading step is executed under the control of the control device, the powder material is transferred to the mixing device by the powder transfer device, and water is supplied by the water supply device. The powder material and water are mixed to form a mixture. After this pre-kneading step, an aggregate addition step is executed, the aggregate is transported by the aggregate transport device, and the aggregate is added to the mixture. Subsequently, the aggregate mixing step is executed, and the aggregate and the mixture added in the aggregate adding step are mixed. In this way, since the mixture is formed by the mixing device and the aggregate is added to the mixture after that, the noise caused by the addition of the aggregate can be reduced by the mixture. Furthermore, after forming the mixture, aggregate is added, and since the added aggregate and the mixture are mixed, the aggregate is added first, and then the powder material and water are added to mix. Rather than doing so, the noise associated with mixing can be effectively reduced. In this way, the control device that controls to execute the pre-kneading step, the aggregate adding step, and the aggregate mixing step effectively reduces the noise of the mobile batcher plant. , Functions as a noise reduction mechanism.

In the mobile batcher plant of one embodiment, the mixing device mixes the materials charged into the mixing tank at a predetermined rotation speed according to the type and composition of the material for a predetermined rotation time. And, after the mixing operation is completed, the agitate operation of mixing at a rotation speed lower than the above rotation speed is performed.

According to the above embodiment, in the mixing operation of the mixing device, for example, ultrafast hard concrete is mixed by mixing at a predetermined rotation speed for a predetermined rotation time according to the type and composition of the materials charged into the mixing tank. , Ordinary concrete, mortar, grout, etc. are appropriately prepared. In the agitate operation after the mixing operation is completed, by mixing the above-mentioned materials at a rotation speed lower than the above-mentioned rotation speed, it is possible to secure fluidity until the prepared ready-mixed concrete or the like is placed. it can.

The mobile batcher plant of one embodiment is erected on the support structure, and the noise reduction mechanism is configured by at least a noise reduction wall installed on the side of the mixing device.

According to the above embodiment, the noise of the mobile batcher plant is effectively reduced by the noise reduction mechanism which is erected in the support structure and is composed of the noise reduction wall installed at least on the side of the mixing device. Can be done.

The mobile batcher plant of one embodiment is composed of a container body having a side member erected on each side of the rectangular support structure and a ceiling member installed so as to close the upper end of the side member. The noise reduction mechanism is configured.

According to the above embodiment, the noise reduction mechanism is formed of a container body having a side member erected on each side of the rectangular support structure and a ceiling member installed so as to close the upper end of the side member. The device that constitutes the mobile batcher plant is housed in the container. As a result, the noise of the mobile batcher plant can be effectively reduced.

In the mobile batcher plant of one embodiment, the powder storage device is formed so as to receive a package in which the powder material is packed in a bag and store the powder material.

According to the above embodiment, since the powder storage device is formed so as to receive the packing body in which the powder material is packed in the bag body and store the powder material, the powder material is powdered. The powder material does not scatter when it is put into the storage device. Therefore, the inconvenience that the environment around the mobile batcher plant is contaminated with the powder material can be effectively prevented.

In the mobile batcher plant of one embodiment, the powder storage device has the powder on the packing body receiving portion that receives the packing body and the bottom of the bag body of the packing body that is received by the packing body receiving portion. It has an outlet forming portion for forming an outlet for taking out the body material, and a vibrating portion for vibrating the package received by the package receiving unit to promote the discharge of the powder material.

According to the above embodiment, the packing body in which the powder material is packed in the bag body is received by the packing body receiving portion of the powder storage device. In the package body received by the package body receiving portion, an outlet for taking out the powder material is formed at the bottom of the bag body of the package body by the outlet forming portion. The package received by the package receiving unit is vibrated by the vibrating unit to promote the discharge of the powder material. Therefore, by putting the powder material into the powder storage device, the powder material can be efficiently taken out from the package and used without scattering the powder material around.

In the mobile batcher plant of one embodiment, an on-off valve is provided on the discharge side of the transfer target of the powder transfer device and / or the aggregate transfer device.

According to the above embodiment, when the powder transfer device and / or the aggregate transfer device does not transfer the transfer target, the powder remaining in the powder transfer device is closed by closing the on-off valve provided on the discharge side of the transfer target. It is possible to prevent the inconvenience that the body material and the aggregate remaining in the aggregate transport device are thrown into the mixing device. Therefore, it is possible to effectively prevent the inconvenience that the excess powder material or aggregate is put into the mixing device and the composition of the powder material, water, and aggregate deviates from the appropriate value. In addition, it is possible to effectively prevent the inconvenience that the remaining powder material or aggregate scatters around and pollutes the surrounding environment. Here, as the on-off valve, a butterfly valve can be used. Further, the on-off valve may be provided at the discharge port of the transfer target of the powder transfer device and / or the aggregate transfer device, and the transfer target is input from the powder transfer device and / or the aggregate transfer device of the mixing device. It may be provided at the slot.

The mobile batcher plant of one embodiment includes a fiber reinforced material charging device for charging the fiber reinforced material into the mixing device.

According to the above embodiment, special concrete such as fiber reinforced concrete can be manufactured by charging the fiber reinforcing material into the mixing device by the fiber reinforcing material charging device.

In the mobile batcher plant of one embodiment, the fiber reinforced concrete input device is attached to a handrail erected on the support structure.
The height of the portion of the handrail on the tip side of the fiber reinforced concrete loading device is reducibly formed so that the height is equal to or less than the height limit when the support structure is mounted on the vehicle.

According to the above embodiment, the fiber reinforced material can be smoothly charged into the mixing device by the fiber reinforced material charging device attached to the handrail erected on the support structure. Further, by reducing the height of the portion of the handrail on the tip side of the fiber reinforced concrete loading device, the height of the handrail becomes equal to or less than the height limit when the support structure is mounted on the vehicle. Therefore, a vehicle equipped with a mobile batcher plant can pass on public roads without any problem without violating the height limit. Here, the height of the portion on the tip end side of the handrail may be reduced by being foldable by a hinge, and the height can be reduced by forming the columns in a telescopic shape. You may.

The mobile batcher plant of one embodiment includes an additive supply device that supplies an additive diluted with water in the mixing device.

According to the above embodiment, the additive supply device supplies the additive diluted with water into the mixing device. Since this additive supply device supplies the additive diluted with water, it is possible to suppress an error in the supply amount of the additive even if the amount of the additive to be supplied is small. The error in the supply amount that occurs when the additive is supplied into the mixing device is caused by, for example, adhesion to the inner surface of the transport passage, liquid pooling, measurement error of the flow meter due to air bubbles, or the like. Since the additive diluted with water has a larger amount than the undiluted additive and has a lower viscosity than the additive depending on the additive, it is possible to effectively suppress the occurrence of the above-mentioned error in the supply amount. Here, when the additive diluted with water is supplied into the mixing device, the amount of diluted water and the amount of water supplied by the water supply device are the amount of water to be supplied corresponding to the powder material. Adjust so that In addition, the additives are various chemicals added when producing ultrafast hard concrete, ordinary concrete, mortar, grout, etc., for example, a water reducing agent, a fluidizing agent, a coagulation retarder, a coagulation accelerator, etc. Applies to. Here, the additive includes a so-called admixture.

In the mobile batcher plant of one embodiment, the control device is a powder storage device, an aggregate storage device, a water storage device, a mixing device, a powder transfer device, an aggregate, depending on the type and amount of the product to be manufactured. It has control data related to the control of the transport device and the water supply device.

According to the above embodiment, once the type and amount of the product to be produced are specified, the control device is used to control the powder storage device, aggregate storage device, water storage device, mixing device, and powder based on the control data corresponding to these. The body transport device, aggregate transport device and water supply device are controlled. Therefore, if the operator inputs the type and amount of the product to be manufactured into the control device, each device is appropriately controlled according to the input contents, and automatically super-fast hard concrete, ordinary concrete, mortar, or the like. Grout etc. are manufactured. Therefore, stable quality ultrafast hard concrete or the like can be obtained without being based on the skill and experience of the operator. Here, the control data may be stored in a storage device included in the control device, or may be stored in a server or the like separated from the mobile batcher plant.

The mobile batcher plant of one embodiment is for producing ultrafast hard concrete, fiber reinforced concrete, ordinary concrete, mortar or grout.

According to the above embodiment, since ultrafast hard concrete, fiber reinforced concrete, ordinary concrete, mortar or grout can be produced in the vicinity of the position where it is used, it is possible to provide a product having stable quality even in a small amount. Further, particularly in the case of ultrafast hard concrete, since it can be manufactured in the vicinity of the casting position, the casting work can be performed with a sufficient margin of time until hardening.

In the mobile batcher plant of one embodiment, the vehicle on which the support structure is mounted is a medium-duty truck.

According to the above embodiment, by mounting the support structure on the medium-duty truck, the mobile batcher plant can be moved through even a relatively narrow road. Therefore, the mobile batcher plant can be moved and installed at a position where it is desired to be used with a high degree of freedom.

It is a side view which shows the vehicle which mounted the mobile batcher plant of embodiment of this invention. It is a top view which shows the loading platform part of the vehicle which mounted the mobile batcher plant of embodiment. It is a side view which shows the mobile batcher plant of embodiment. It is a block diagram which shows typically the mobile batcher plant. It is a vertical sectional view which shows the inside of a mixing apparatus. It is a plan sectional view which shows the inside of a mixing apparatus. It is a front view which shows the bottom blade. It is an exploded front view which shows the structure of the bottom blade. It is a front view which shows the side blade. It is an exploded front view which shows the structure of the side blade. It is a front view which shows the support part of a mixing apparatus. It is a side view which shows the fiber reinforcement material input device. It is a perspective view which shows the powder storage apparatus of the modification.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a side view showing a vehicle equipped with the mobile batcher plant of the embodiment of the present invention, and FIG. 2 is a plan view showing a loading platform portion of the vehicle equipped with the mobile batcher plant of the embodiment. FIG. 3 is a side view showing the mobile batcher plant of the embodiment, and FIG. 4 is a block diagram schematically showing the mobile batcher plant.

The mobile batcher plant 1 of the embodiment is mounted on a medium-duty truck as a vehicle and manufactures ultrafast hard concrete in the vicinity of the casting position. In this embodiment, the mobile batcher plant 1 is used for repairing structures and equipment related to roads. For example, in order to repair defects, holes, and cracks in road pavements, plate bridges, balustrades, etc., ultrafast hard concrete is manufactured in the mobile batcher plant 1 in the vicinity of a predetermined repair target. The ultrafast hard concrete produced in the mobile batcher plant 1 is sequentially delivered to other repair targets when a medium-duty truck travels on the road.

This mobile batcher plant 1 is installed on the loading platform 2 of a medium-sized truck, and contains a powder storage device 3 for storing ultrafast hard cement and fine aggregate as a premixed powder material, and an aggregate. An aggregate storage device 4 for storing, a water tank 5 as a water storage device for storing water, a mixing device 6 for mixing the superfast cement, aggregate and water, and additive storage for storing an aqueous solution of an additive. The additive tank 65 as an apparatus is provided. Further, a screw conveyor 7 as a powder transfer device for transferring ultrafast hard cement from the powder storage device 3 to the mixing device 6, and an aggregate transfer device for transferring aggregate from the aggregate storage device 4 to the mixing device 6. A self-priming swirl pump 66 as a water supply device for supplying water from the water tank 5 to the mixing device 6 is provided. Further, a self-priming centrifugal pump 71 is provided as an additive supply device for supplying an aqueous solution of the additive from the additive tank 65 to the mixing device 6. Further, the mobile batcher plant 1 includes the powder storage device 3, the aggregate storage device 4, the water tank 5, the mixing device 6, the screw conveyor 7, the belt conveyor 8, and the like. The control device 10 for controlling the operation with the self-priming centrifugal pumps 66 and 71 is provided. The mobile batcher plant 1 includes the powder storage device 3, the aggregate storage device 4, the water tank 5, the mixing device 6, the screw conveyor 7, the belt conveyor 8, and the belt conveyor 8. A self-priming centrifugal pumps 66 and 71 and a support frame 12 as a support structure for supporting the control device 10 are provided, and the support frame 12 is formed so as to be mounted on a loading platform 2 of a medium-sized truck. A generator 11 that supplies electric power to the mobile batcher plant 1 is mounted on the loading platform 2 of the medium-duty truck. In the mobile batcher plant 1, the mixing device 6 is provided with a noise reduction mechanism for reducing noise.

The powder storage device 3 has a hopper that is formed so as to shrink as the cross section in the plane direction decreases downward to store ultrafast hard cement, and the lower end of the hopper is connected to the screw conveyor 7. An electromagnetic knocker is provided below the hopper to send the ultrafast hard cement in the hopper to the screw conveyor 7 by vibration. The operation of the electromagnetic knocker is controlled by the control device 10. The hopper is formed so as to be hermetically sealed, and the ceiling portion is provided with an opening for pouring ultrafast-hardened cement into the hopper and an opening / closing door 3a for opening / closing the opening.

The aggregate storage device 4 has a hopper that is formed so as to shrink as the cross-sectional area in the plane direction decreases downward and stores the aggregate, and the lower end of the hopper is connected to the belt conveyor 8. An electromagnetic knocker that sends the aggregate in the hopper to the belt conveyor 8 by vibration is provided in the lower part of the hopper. The operation of the electromagnetic knocker is controlled by the control device 10. The hopper is formed so as to be hermetically sealed, and the ceiling portion is provided with an opening for throwing aggregate into the hopper and an opening / closing door 4a for opening / closing the opening. The aggregate charged into the aggregate storage device 4 is often a coarse aggregate.

The water tank 5 has a water level gauge for measuring the internal water level, and the water tank 5 is provided with a self-priming centrifugal pump 66, a flow meter 67, and an on-off valve 68 in a water supply pipe connected to the mixing device 6. .. The water level gauge, self-priming centrifugal pump 66, flow meter 67 and on-off valve 68 are connected to the control device 10, and under the control of the control device 10, the self-priming centrifugal pump 66 moves from the water tank 5 to the mixing device 6. A predetermined amount of water is supplied.

The additive tank 65 has a water level gauge for measuring the internal liquid level, and the additive tank 65 has a self-priming centrifugal pump 71, a flow meter 72, and an on-off valve 73 interposed in a water supply pipe connected to the mixing device 6. Has been done. The water level gauge, the self-priming centrifugal pump 71, the flow meter 72 and the on-off valve 73 are connected to the control device 10, and under the control of the control device 10, the self-priming centrifugal pump 71 mixes the additive tank 65 with the mixing device 6. A predetermined amount of an aqueous solution of the additive is supplied to the pump. In the additive tank 65, an aqueous solution such as a setting retarder or a water reducing agent as an additive to be added to the ultrafast hard concrete is stored. The additive tank 65 may store an aqueous solution of another additive to be mixed by the mixing device 6. Further, a plurality of sets of the water level gauge, the self-priming centrifugal pump 71, the flow meter 72 and the on-off valve 73 may be installed corresponding to the plurality of additives.

The mixing device 6 has a cylindrical mixing tank having a lid and a closed interior, and a blade that is rotationally driven in the mixing tank to mix ultrafast hard cement, aggregate, and water. The blade is rotationally driven in the mixing tank and has a noise reduction mechanism, as will be described in detail later. The lid of the mixing device 6 has a motor 61 for driving the blade, a powder inlet 13 for receiving the superfast cement from the screw conveyor 7 and guiding it into the mixing tank, and an aggregate receiving the aggregate from the belt conveyor 8 in the mixing tank. An aggregate entrance 15 for guiding is provided. A butterfly valve 14 as an on-off valve is provided at the aggregate inlet 15, and the butterfly valve 14 is closed when the belt conveyor 8 is stopped so that excess aggregate is not introduced into the mixing tank from the belt conveyor 8. It has become. The operation of the motor 61 and the butterfly valve 14 of the mixing device 6 is controlled by the control device 10. Further, the mixing device 6 is supported by the support frame 12 via the load cell 18 and the posture holding device, which will be described in detail later. The load cell 18 and the posture holding device are connected to the control device 10. The mass of the material charged into the mixing device 6 is measured by the load cell 18, and the measured value of the load cell 18 is input to the control device 10. Further, under the control of the control device 10, the posture of the mixing device 6 is appropriately held by the posture holding device. Further, the mixing device 6 has a discharge port that can be opened and closed at the bottom of the mixing tank, and a chute 69 that discharges concrete or the like after kneading is connected to this discharge port.

In the screw conveyor 7, the input port is connected to the lower end of the hopper of the powder storage device 3, and the discharge port is connected to the powder inlet 13 of the mixing device 6. The screw conveyor 7 conveys ultrafast hard cement from an inlet to an outlet by a screw that is rotationally driven in a sealed casing. By using the screw conveyor 7, the amount of ultrafast hard cement to be conveyed and charged into the mixing device 6 can be determined with high accuracy, and the scattering of the ultrafast hard cement during transfer can be effectively prevented. Further, a butterfly valve 16 as an on-off valve is provided at the discharge port of the screw conveyor 7, and by closing the butterfly valve 16 when the screw conveyor 7 is stopped, excess ultrafast hard cement is mixed from the screw conveyor 7 in the mixing tank. It is designed not to be thrown inside. The operation of the motor for rotationally driving the screw of the screw conveyor 7 and the butterfly valve 16 is controlled by the control device 10.

In the belt conveyor 8, the input port is connected to the lower end of the hopper of the aggregate storage device 4, and the discharge port is connected to the aggregate inlet 15 of the mixing device 6. In the belt conveyor 8, a conveyor belt on which aggregates are placed and conveyed and a drive roller for driving the conveyor belt are housed in a sealed casing. By using such a closed belt conveyor, it is possible to prevent the aggregate from falling during transportation, the diffusion of noise caused by the aggregate, and the diffusion of dust adhering to the aggregate. The operation of the motor that rotationally drives the drive rollers of the belt conveyor 7 is controlled by the control device 10.

The control device 10 is connected to the water level gauges of the water tank 5 and the additive tank 64, the self-priming centrifugal pumps 66 and 71, the flow meters 67 and 72, and the on-off valves 68 and 73. The operations of the self-priming centrifugal pumps 66 and 71 and the on-off valves 68 and 73 are controlled based on the measured values of the flow meters 67 and 72. Further, the control device 10 is connected to the electromagnetic knockers of the powder storage device 3 and the aggregate storage device 4, and operates the electromagnetic knockers when guiding the powder material and the aggregate to the screw conveyor 7 and the belt conveyor 8. Let me.

Further, the control device 10 is connected to the motor 61 of the mixing device 6 and controls the operation of the motor 61 based on the composition of the powder material, the aggregate, the water, the additive, the outside air temperature, and the like. Further, the control device 10 is connected to a drive device for an opening / closing door provided at the discharge port of the mixing tank of the mixing device 6, and controls the opening / closing of the discharge port to control the discharge of concrete and the like. Further, the control device 10 is connected to the butterfly valve 14 of the aggregate input port 15 and controls the opening and closing of the butterfly valve 14 according to the operation of the belt conveyor 8. Further, the control device 10 is connected to the load cell 18 of the mixing device 6 and the posture holding device, and detects the input mass of the powder material or the aggregate based on the measured value of the load cell 18. Further, the control device 10 is connected to the motor of the screw conveyor 7, and is based on an operation start command by the operator, the kneading time of the mixing device 6, the amount of powder material charged into the mixing device 6, and the like. The operation of the motor of the screw conveyor 7 is controlled. Further, the control device 10 is connected to the butterfly valve 16 and controls the opening / closing operation of the butterfly valve 16 based on the operating state of the screw conveyor 7. Further, the control device 10 is connected to the motor of the belt conveyor 8, and the operator gives an operation start command, the kneading time of the mixing device 6, and the aggregate to the mixing device 6 measured by the load cell 18. The operation of the motor of the belt conveyor 8 is controlled based on the input amount and the like.

The control device 10 has a CPU (Central Processing Unit) and a storage device in which a computer program is stored, and the computer program of the storage device is read out and executed by the CPU to perform the function of the control device 10. It will be realized. The storage device can be formed of a magnetic disk, a semiconductor memory, or the like. In addition to the computer program, the storage device can store data related to concrete, grout, mortar, and the like that can be manufactured in the mobile batcher plant 1. The control device 10 includes an operation unit 75 as an input device for inputting various commands and conditions from the operator, and an output device for outputting the operating status and operating conditions. The operation unit 75 is formed of a liquid crystal touch panel having a display function, and also serves as an output device. The input device may include a push button, a keyboard, a voice input device, and the like. Further, the output device may be configured to include a signal lamp, a liquid crystal display device, an audio output device, and the like.

The control device 10 includes data on concrete, grout, mortar, etc. that can be manufactured in the mobile batcher plant 1, as well as compounding data on the composition, which is a breakdown of the amount of materials used when manufacturing these concretes, etc. Control data relating to the control of each device when these materials are charged and mixed is used. A plurality of patterns are preset and stored in these compounding data and control data according to the type of concrete or the like. These compounding data and control data may be stored in the storage device of the control device 10, or may be stored in the storage device of the server installed separately from the mobile batcher plant 1. When data is stored in the storage device of the server, a communication device is provided in the mobile batcher plant 1, and the control device 10 receives and uses the data via this communication device.

As the above-mentioned compounding data, for example, it is possible to use a data composed of the type of cement, the size of aggregate, the slump of concrete, the amount of air, the water-cement ratio, the ratio of fine aggregate, the amount of unit water, the amount of additives, and the like. it can. The control data includes the flow rate by the self-priming centrifugal pumps 66 and 71, the opening and closing timing of the on-off valves 68 and 73, the operation timing of the electromagnetic knocker, the amount of material transferred by the screw conveyor 7 and the belt conveyor 8, and the butterfly valve 14. , 16 operation timings, operation timings of the mixing device 6, operation time, and the like can be used.

When concrete or the like is manufactured by the mobile batcher plant 1 of the present embodiment, the type of the product to be manufactured and the amount to be manufactured are specified by the operator through the operation unit 75 of the control device 10. At this time, the operation unit 75 displays a menu for presenting any of concrete, grout, mortar, and the like as the type of the product to be manufactured, and the operator selects and specifies the type to be manufactured from the menu. In the menu, more detailed types such as concrete and product names may be displayed so that they can be selected. In addition, a menu for presenting a numerical value of the amount of concrete to be manufactured is displayed on the operation unit, and the operator selects and specifies a numerical value of the amount to be manufactured from the menu. An input key may be displayed on the operation unit 75 for the amount of concrete or the like to be manufactured, and the operator may directly input a numerical value through the input key. Based on the type and amount specified through the operation unit 75, the control device 10 reads out appropriate combination data and control data among the combination data and control data stored in the storage device. The read compounding data is displayed on the operation unit 75, and an execution button for prompting the execution of the operation is displayed. When the operator instructs the start of operation through the execute button, the control device 10 determines the self-priming centrifugal pumps 66, 71, on-off valves 68, 73, electromagnetic knockers, screw conveyor 7, belt conveyor 8, based on the control data. The butterfly valves 14 and 16 and the mixing device 6 are controlled, and concrete and the like are automatically manufactured using materials according to the compounding data. In this way, if the operator selects a menu through the operation unit 75, a desired predetermined amount of concrete or the like can be automatically manufactured, so that the operator does not have advanced knowledge or skill in manufacturing concrete or the like. However, high quality concrete and the like can be produced. The strength, slump, fluidity, hardening time, etc. that concrete or the like should exert may be specified through the operation unit 75. When the strength, slump, fluidity, hardening time, etc. that concrete or the like should exert are specified, the control device 10 adjusts the compounding data and the control data according to the specified contents, and adjusts the adjusted compounding data to the operation unit. It is displayed on 75 to prompt the operator to confirm, and when the operator inputs the confirmation, each device is controlled according to the adjusted control data.

Further, the control device 10 is connected to a thermometer (not shown). A thermometer is placed in the vicinity of either or both of the mixing device 6 and the water tank 5 to measure the temperature of the kneading environment and / or the temperature of the mixture of powder material, aggregate and water. presume. The control device 10 adjusts the composition such as the amount of water based on the temperature measured by the thermometer so that the concrete or the like develops a predetermined strength or the like. A heater may be provided in the water tank 5 to adjust the temperature of water to a temperature suitable for blending.

Further, the control device 10 stores data on the composition and operation contents adopted at the time of manufacturing concrete or the like in the storage device. As a result, quality assurance of concrete and the like can be performed. Here, as the data to be stored in the storage device, it is possible to adopt the type of manufacturing, the actual input amount of the material, the kneading time of the mixing device 6, and the like.

FIG. 5 is a vertical sectional view showing the inside of the mixing device 6, and FIG. 6 is a plan sectional view showing the inside of the mixing device 6. As shown in FIGS. 5 and 6, the mixing device 6 is provided with three bottom blades 21 for mixing ultrafast hard cement, aggregate and water, and one side blade 22 in the mixing tank 20. ing. The bottom blade 21 is driven by planetary rotation with the central axis of the mixing tank 20 as the center of revolution in a state where the lower end edge is in contact with the bottom surface 20a of the mixing tank 20. The side blade 22 is rotationally driven around the central axis of the mixing tank 20 with the side edges in contact with the inner side surface 20b of the mixing tank 20.

The bottom blade 21 is attached to each of the lower ends of the three first support rods 24 extending from the upper part to the lower part of the mixing tank 20. The first support rod 24 is connected to each of the three vertices of the connecting member 25 which is arranged in the upper part of the mixing tank 20 and has a substantially triangular shape. The revolving rotation shaft 26 is connected to the center of the connecting member 25, and the revolving rotation shaft 26 is pivotally attached to one end of the first rotating arm 28 arranged in the vicinity of the lid 30 of the mixing tank 20. The first rotating arm 28 is connected to a rotating shaft 29 provided at the center of the circular lid 30 of the mixing tank 20. The rotating shaft 29 is connected to a motor 61 arranged on the lid 30. A planetary gear mechanism for transmitting the rotational force of the rotating shaft 29 to the revolving rotating shaft 26 is provided in the first rotating arm 28. A second rotating arm 31 extending in the radial direction opposite to the revolution rotating shaft 26 is connected to the other end of the first rotating arm 28. One second support rod 32 extending from the upper part to the lower part in the mixing tank 20 is connected to the tip of the second rotary arm 31, and the side blade 22 is fixed to the second support rod 32. There is.

FIG. 7 is a front view showing the bottom blade 21, and FIG. 8 is an exploded front view showing the configuration of the bottom blade 21.

The bottom blade 21 is formed so as to sandwich and hold the first stirring sliding body 211 that slides in contact with the bottom surface 20a of the mixing tank 20 between the first holding metal fitting 212 and the second holding metal fitting 213. The first stirring sliding body 211 is made of vulcanized natural rubber and has a hexagonal shape as if a rectangle is connected to the lower end of a trapezoid. The first stirring sliding body 211 is formed with a guide hole 211a formed of an elongated hole in order to adjust the fixing position with respect to the second holding metal fitting 213 and the first support rod 24. The guide hole 211a is formed to have a width slightly wider than the width of the intervening metal fitting 214 and a length larger than the length of the intervening metal fitting 214.

The first holding metal fitting 212 is arranged in contact with the surface of the first stirring sliding body 211 on the side opposite to the first support rod 24. The first holding metal fitting 212 is made of stainless steel and has a hexagonal shape as if a rectangle is connected to the lower end of a trapezoid, and both sides and the bottom of the lower portion are from both sides and the bottom of the first stirring sliding body 211. Is also formed inside. As a result, when the first holding metal fitting 212 is superposed on the first stirring sliding body 211 so that the upper ends coincide with each other, both sides of the lower portion of the first stirring sliding body 211 and the peripheral portions of the bottom are from the first holding metal fitting 212. Is also designed to project outward. Further, the first holding metal fitting 212 is formed with a guide hole 212a formed by an elongated hole for adjusting a fixed position with respect to the second holding metal fitting 213. The guide hole 212a is formed to have a width slightly wider than the diameter of the shaft of the bolt 215.

The second holding metal fitting 213 is arranged in contact with the surface of the first stirring sliding body 211 on the first support rod 24 side. The second holding metal fitting 213 is made of stainless steel and has a rectangular shape having substantially the same width as the first support rod 24. The second holding metal fitting 213 has two bolt holes 213a through which the bolt 215 is inserted. The second holding metal fitting 213 is arranged in contact with the first stirring sliding body 211 and also in contact with the first support rod 24, and the bolt 215 inserted through the bolt hole 213a cooperates with the first holding metal fitting 212. 1 The stirring sliding body 211 is sandwiched and fixed, and is fixed to the first support rod 24.

Between the first holding metal fitting 212 and the second holding metal fitting 213, an intervening metal fitting 214 in contact with the first holding metal fitting 212 and the second holding metal fitting 213 is arranged. The interposition metal fitting 214 is made of stainless steel, has a thickness slightly smaller than the thickness of the first stirring sliding body 211, and is formed in a size that allows relative movement in the guide hole 211a of the first stirring sliding body 211. .. The intervening metal fitting 214 has two bolt holes 214a through which the bolt 215 is inserted.

The first holding metal fitting 212, the first stirring sliding body 211 in which the intervening metal fitting 214 is inserted into the guide hole 211a, and the second holding metal fitting 213 are arranged in this order, and the first support rod 24 is attached. The second holding metal fitting 213 is arranged so as to be in contact with the surface. In this state, the guide hole 212a of the first holding metal fitting 212, the bolt hole 214a of the intervening metal fitting 214, the bolt hole 213a of the second holding metal fitting 213, and the bolt hole provided in the first support rod 24. The bolt 215 is inserted into the bolt 215, and the nut 216 is screwed to the shaft of the bolt 215 protruding to the side opposite to the mounting surface of the first support rod 24, and the bottom surface blade 21 is fixed to the first support rod 24. Further, the position of the bottom surface blade 21 with respect to the first support rod 24 is fixed by the bolt 215 and the nut 216.

In the bottom blade 21 configured in this way, the first stirring sliding body 211 and the first holding metal fitting 212 can move along the elongated holes 211a and 212a in the extending direction of the first support rod 24, whereby. , The distance between the mixing tank 20 and the bottom surface 20a can be adjusted. Here, the positions of the first stirring sliding body 211 and the first holding metal fitting 212 are adjusted so that the lower end of the first stirring sliding body 211 comes into contact with the bottom surface 20a of the mixing tank 20. As a result, when the bottom blade 21 is driven by planetary rotation, the lower end of the first stirring sliding body 211 always comes into contact with the bottom surface 20a of the mixing tank 20 and slides.

FIG. 9 is a front view showing the side blade 22, and FIG. 10 is an exploded front view showing the configuration of the side blade 22.

The side blade 22 is formed so as to sandwich and hold the second stirring sliding body 221 that slides in contact with the inner side surface 20b of the mixing tank 20 between the first holding metal fitting 222 and the second holding metal fitting 223. The second stirring sliding body 221 is made of vulcanized natural rubber, and has a shape in which small rectangles protruding to one side are connected to the side edge of the lower end portion of a vertically long large rectangle. The second stirring sliding body 221 is formed so that the mounting positions in the width direction and the height direction can be adjusted with respect to the first holding metal fitting 222 and the second holding metal fitting 223.

The first holding metal fitting 222 is arranged so as to be in contact with the surface of the second stirring sliding body 221 opposite to the second support rod 32. The first holding metal fitting 222 is made of stainless steel and has a shape in which small rectangles protruding to one side are connected to the side edge of the lower end portion of a vertically long large rectangle. Further, bolt holes 222a formed by elongated holes for adjusting the fixing position with respect to the second support rod 32 are formed in the upper portion and the lower portion of the first holding metal fitting 222, respectively. The bolt hole 222a is formed to have a width slightly wider than the diameter of the shaft of the bolt 224, and extends in the width direction of the first holding metal fitting 222.

The second holding metal fitting 223 is arranged in contact with the surface of the second stirring sliding body 221 on the second support rod 32 side. Like the first holding metal fitting 222, the second holding metal fitting 223 is made of stainless steel and has a shape in which a small rectangle protruding to one side is connected to the side edge of the lower end portion of a vertically long large rectangle. Have. Further, similarly to the first holding metal fitting 222, bolt holes 223a formed by elongated holes for adjusting the fixing position with respect to the second supporting rod 32 are formed in the upper part and the lower part of the second holding metal fitting 223. .. The second holding metal fitting 223 is arranged in contact with the second stirring sliding body 221 and in contact with the second support rod 32, and cooperates with the first holding metal fitting 222 by two bolts 224 inserted through the two bolt holes 223a. It works to sandwich and fix the second stirring sliding body 221 and is fixed to the second support rod 32.

The first holding metal fitting 222, the second stirring sliding body 221 and the second holding metal fitting 223 are arranged in this order, and the second holding metal fitting 223 is arranged so as to come into contact with the mounting surface of the second support rod 32. To. In this state, the bolt 224 is inserted into the bolt hole 222a of the first holding metal fitting 222, the bolt hole 223a of the second holding metal fitting 223, and the bolt hole provided in the second support rod 32, and the second The nut 225 is screwed to the shaft of the bolt 224 protruding on the side opposite to the mounting surface of the support rod 32, and the side blade 22 is fixed to the second support rod 32. Further, the position of the side blade 22 with respect to the second support rod 32 is fixed by the bolt 224 and the nut 225.

In the side blade 22 configured in this way, the first holding metal fitting 222 and the third holding metal fitting 223 can move in the width direction of the second support rod 32 along the elongated holes 222a and 223a, thereby mixing. The distance between the inner surface 20b of the tank 20 and the inner surface 20b can be adjusted. Further, the second stirring sliding body 221 can move in the width direction and the vertical direction with respect to the first holding metal fitting 222 and the third holding metal fitting 223 when the bolt 224 and the nut 225 are loosened, whereby the mixture is mixed. The distance between the inner side surface 20b and the bottom surface 20a of the tank 20 can be adjusted. Here, the second stirring slide so that the side edge of the second stirring sliding body 221 contacts the inner side surface 20b of the mixing tank 20 and the lower end of the second stirring sliding body 221 contacts the bottom surface 20a of the mixing tank 20. Adjust the position of the moving body 221. As a result, when the side blade 22 is rotationally driven around the rotation shaft 29, the side edge of the second stirring sliding body 221 always contacts the inner side surface 20b of the mixing tank 20 and slides, and the second stirring sliding body 22 slides. The lower end of the 221 always contacts the bottom surface 20a of the mixing tank 20 and slides.

In this way, the first stirring sliding body 211, which is formed of natural rubber which is a flexible material and slides in constant contact with the bottom surface 20a of the mixing tank 20, and the inner side surface 20b of the mixing tank 20 are constantly in contact with each other. A noise reduction mechanism is configured by the sliding second stirring sliding body 221. The first stirring sliding body 211 of the bottom blade 21 always contacts the bottom surface 20a of the mixing tank 20 and slides, and the second stirring sliding body 221 of the side blade 22 always contacts the inner side surface 20b of the mixing tank 20. By sliding, it becomes difficult to form a gap between the first stirring sliding body 211 and the bottom surface 20a and between the second stirring sliding body 221 and the inner side surface 20b. As a result, it is possible to effectively prevent the inconvenience of the aggregate being bitten between the blades 21 and 22 and the bottom surface 20a and the inner side surface 20b of the mixing tank 20, and the squealing noise generated by the biting of the aggregate. Can be effectively prevented. As a result, the noise during operation of the mixing device 6 can be significantly reduced. Further, when the mixing is completed by the mixing device 6, the amount of concrete or the like adhering to the bottom surface 20a and the inner side surface 20b of the mixing tank 20 can be effectively reduced, so that the residual concrete or the like discharged from the mixing tank 20 is effective. Can be reduced.

Here, the second stirring sliding body 221 of the side blade 22 does not have to come into contact with the bottom surface 20a of the mixing tank 20. Further, only one of the first stirring sliding body 211 of the bottom blade 21 and the second stirring sliding body 221 of the side blade 22 may be provided. Further, the number of the bottom blade 21 and the side blade 22 is not limited to three and one.

FIG. 11 is a front view showing a portion of the mixing device 6 supported by the support frame 12. The mixing device 6 is supported by the support frame 12 via the load cell 18 and the posture holding device 43.

The load cell 18 is a compression type load cell, and is installed between the lower frame 41 fixed to the lower part of the mixing device 6 and the support frame 12. A protective device 18 for avoiding a load on the load cell 18 when the mobile batcher plant 1 is moved or the like can be installed between the lower frame 41 and the support frame 12 of the mixing device 6. The protective tool 18 is formed of a plate-like body, and the upper end and the lower end are fixed to the upper end and the lower end of the load cell 18 with bolts 49, respectively, to prevent the load from being input to the load cell 18. The protective tool 18 is removed when the mobile batcher plant 1 is in operation.

The posture holding device 43 is configured by using a solenoid, and has a plunger 44 that is driven from the main body in the projecting and immersing directions by an electromagnetic force. The main body of the posture holding device 43 is fixed to the support frame 12, and the tip of the plunger 44 is formed so as to be in contact with the lower frame 41 of the mixing device 6. The operation of the posture holding device 43 is controlled by the control device 10. A spirit level (not shown) is installed in the lower frame 41 of the mixing device 6, and the spirit level is connected to the control device 10. When the tilt of the mixing device 6 is detected by the spirit level, the posture holding device 43 is operated by the control device 10, and the lower frame 41 is pushed up by the plunger 44 to hold the mixing device 6 horizontally. .. By holding the mixing device 6 horizontally by the posture holding device 43, it is possible to reduce the error in weighing the material charged into the mixing device 6 by the load cell 18, and it is possible to effectively prevent the mixing device 6 from malfunctioning. It is preferable that a plurality of posture holding devices 43 are installed between the lower frame 41 and the support frame 12.

In the mobile batcher plant 1 of the present embodiment, it is possible to install a fiber reinforced material charging device for charging the fiber reinforcing material in the mixing device 6. When manufacturing concrete or the like, high-strength concrete or the like can be manufactured by adding the fiber reinforced material with the fiber reinforced material input device. As the fiber reinforcing material, steel fiber, carbon fiber, and resin fiber such as vinylon can be used.

FIG. 12 is a side view showing a fiber reinforcing material input device. The fiber reinforced material input device 80 is a fiber reinforced material storage device 81 for storing the fiber reinforced concrete material and a receiving vibration device that receives the fiber reinforced concrete material from the fiber reinforced concrete material manufacturing device 81 and gives vibration to the fiber reinforced concrete material. It has 82 and a transporting trough 83 for transporting the fiber reinforced material to which the vibration is given by the receiving and exciting device 82. An opening / closing door 87 for discharging the stored fiber reinforcing material is provided below the fiber reinforcing material storage device 81. The fiber reinforcing material conveyed by the transport gutter 83 is charged into the funnel-shaped loading tool 84, and is guided into the mixing device 6 through the pipeline 85 connected to the loading tool 84. By providing the fiber reinforced material input device 80, it is possible to manufacture special concrete such as fiber reinforced concrete.

The fiber reinforced material storage device 81 is attached to a handrail 90 erected on the support frame 12. The tip 90a on the tip side of the handrail 90 with respect to the fiber reinforced material storage device 81 is formed so as to be foldable by rotating around the hinge 92 as shown by an arrow A. Since the tip 90a of the handrail 90 is formed so as to be foldable, the height of the mobile batcher plant 1 becomes equal to or less than the height limit when the mobile batcher plant 1 is mounted on a truck. It is configured in. As a result, when the mobile batcher plant 1 is transported by truck, it can pass on public roads without any problem. The height of the tip 90a of the handrail 90 can be reduced by making it foldable with a hinge 92, and the height may be reduced by forming the columns in a telescopic shape. ..

Next, a case where the elevated road is repaired using the mobile batcher plant 1 of the present embodiment will be described.

On the elevated road, asphalt pavement and concrete pavement are provided on the floor slab, and a joint is provided between the floor slab and the floor slab extending in the extending direction of the road. In addition, balustrades and signs are provided on both sides of the pavement. As elevated roads age, cracks and defects occur on the surface of pavements, the surface of plate slabs, the periphery of joints, and balustrades. These cracks and defects occur at multiple locations in the extending direction of the road. These cracks and defects are repaired by filling them with ultrafast hard concrete. The amount of ultrafast hard concrete used for cracking and chipping is small, the ultrafast hard concrete hardens rapidly after manufacturing, and the repair points are scattered along the road, so the ultrafast hard concrete manufactured in the existing concrete plant It is difficult to use concrete. Therefore, by using the mobile batcher plant 1 of the present embodiment, ultrafast hard concrete is manufactured and placed in the vicinity of the repaired portion.

First, the mobile batcher plant 1 is mounted on a medium-duty truck, travels on the road to be repaired, and is moved to the vicinity of the repaired portion. Since the mobile batcher plant 1 can be mounted on a medium-duty truck, the truck can be parked and operated in the regulated area set in the lane where the repair location exists, so that the other lanes can be released. Therefore, it is possible to manufacture ultrafast hard concrete and repair the road without closing the road.

When the mobile batcher plant 1 is parked near the repaired portion, the posture of the mixing device 6 is measured by a spirit level through the control device 10. When the mixing device 6 is tilted, the posture holding device 43 adjusts the posture of the mixing device 6.

Next, materials such as powder material, aggregate, and additive are put into the mobile batcher plant 1 installed near the repaired portion. As the powder material, when producing ultrafast hard concrete, a mixture of ultrafast hard cement and fine aggregate is used. As the powder material, it is preferable to use a mixture of ultrafast hard cement and fine aggregate in a predetermined composition. The packing body in which the powder material is packed is carried into the construction site, the opening / closing door 3a of the hopper of the powder storage device 3 is opened, and the powder material is put into the hopper through the opening. Further, the packing body in which the aggregate is packed is carried into the construction site, the opening / closing door 4a of the hopper of the aggregate storage device 4 is opened, and the aggregate is put into the hopper through the opening. As the additive, for example, a water reducing agent or the like is diluted with water to a predetermined concentration and charged into the additive tank 65. At least one of the powder material, the aggregate and the additive may be added before the movement of the mobile batcher plant 1. By adding all of the powder material, aggregates and additives before the movement of the mobile batcher plant 1, kneading is started immediately after arriving at the site, and ultrafast hard concrete is obtained at an early stage. be able to.

Subsequently, the type to be manufactured is ultrafast hard concrete and the amount to be manufactured is input to the operation unit 75 of the control device 10. When the control device 10 receives the input of the type of concrete or the like and the production amount, the compounding data and the control data corresponding to these conditions are read out from the storage device. The control device 10 displays the read compounding data on the operation unit 75, and displays the operation execution button on the operation unit 75.

When the operator instructs the start of operation through the execution button displayed on the operation unit 75, the control device 10 starts the operation of the mobile batcher plant 1 based on the read control data.

First, under the control of the control device 10, the butterfly valve 16 is opened and the operation of the screw conveyor 7 is started. As a result, the powder material is conveyed from the powder storage device 3 to the mixing device 6 by the screw conveyor 7 and charged. At this time, the electromagnetic knocker of the powder storage device 3 is operated, and the powder material is quickly guided from the hopper to the screw conveyor 7. Since the hopper of the powder storage device 3 is sealed, the screw conveyor 7 conveys the powder material in the sealed casing, and the mixing device 6 is sealed, the powder material is transferred from the powder storage device 3. It is possible to effectively prevent the inconvenience that the powder material leaks during transportation to the mixing device 6 and pollutes the surrounding environment.

The control device 10 detects the mass of the powder material charged into the mixing device 6 based on the information from the load cell 18. When the amount of powder material specified in the blending data is charged into the mixing device 6, the control device 10 stops the screw conveyor 7 and closes the butterfly valve 16. This prevents the inconvenience that the powder material remaining in the screw conveyor 7 is charged into the mixing device 6.

Subsequently, water is supplied to the mixing device 6 under the control of the control device 10. That is, the control device 10 opens the on-off valve 68 and activates the self-priming centrifugal pump 66 to supply water from the water tank 5 to the mixing device 6. When it is detected by the measured value of the flow meter 67 that the amount of water specified in the compounding data has been supplied to the kissing device 6, the control device 10 stops the self-priming centrifugal pump 66 and closes the on-off valve 68.

When the powder material and water are charged into the mixing device 6, the control device 10 activates the motor 61 of the mixing device 6 to start the kneading operation by the bottom blade 21 and the side blade 22. When the motor 61 of the mixing device 6 is activated, the three bottom blades 21 are driven by planetary rotation, and the side blades 22 are driven to rotate. When the mixing device 6 kneads the powder material and water for a predetermined time, the control device 10 stops the motor 61 and temporarily stops the kneading of the powder material and water.

When the kneading of the powder material and water by the mixing device 6 is stopped, the butterfly valve 14 is opened and the operation of the belt conveyor 8 is started under the control of the control device 10. As a result, the aggregate is conveyed from the aggregate storage device 4 to the mixing device 6 by the belt conveyor 8 and loaded. At this time, the electromagnetic knocker of the aggregate storage device 4 is operated, and the aggregate is quickly guided from the hopper to the belt conveyor 8. Since the hopper of the aggregate storage device 4 is sealed, the belt conveyor 8 conveys the aggregate in the sealed casing, and the mixing device 6 is sealed, the aggregate is mixed from the aggregate storage device 4 to the mixing device. It is possible to effectively prevent the inconvenience that dust adhering to the aggregate leaks during transportation to No. 6 and pollutes the surrounding environment.

The control device 10 detects the mass of the aggregate to be charged into the mixing device 6 based on the information from the load cell 18. When the amount of aggregate specified in the blending data is charged into the mixing device 6, the control device 10 stops the belt conveyor 8 and closes the butterfly valve 14. This prevents the inconvenience that the aggregate remaining in the belt conveyor 8 is thrown into the mixing device 6.

Further, the control device 10 opens the on-off valve 73 and starts the self-priming centrifugal pump 71 to supply the aqueous solution of the additive from the additive tank 65 to the mixing device 6. Here, the control device 10 determines the amount of water previously supplied from the water tank 5 to the mixing device 6 based on the concentration of the aqueous solution of the additive supplied to the mixing device 6, and the amount of water specified in the blending data. The amount of water contained in the aqueous solution of the additive is subtracted from the amount of water so that the amount of water as a whole conforms to the formulation data. When the measured value of the flow meter 72 detects that the amount of the additive specified in the compounding data has been supplied to the kissing device 6, the control device 10 stops the self-priming centrifugal pump 71 and closes the on-off valve 73. ..

When a predetermined amount of additives and aggregates are added to the mixing device 6, the control device 10 activates the motor 61 of the mixing device 6 and adds the powder material and water by the bottom blade 21 and the side blades 22. Start kneading the agent and aggregate. While the bottom surface blade 21 and the side surface blade 22 are driven, the bottom surface blade 21 slides while the first stirring sliding body 211 is in constant contact with the bottom surface 20a of the mixing tank 20 of the mixing device 6, and the side surface blade 22 slides in the second stirring. The sliding body 221 slides while always in contact with the inner side surface 20b of the mixing tank 20. Therefore, kneading is performed in a state where there is substantially no gap between the bottom surface blade 21 and the side surface blade 22 and the bottom surface 20a and the inner surface surface 20b of the mixing tank 20. As a result, it is possible to effectively prevent the inconvenience that the aggregate is bitten between the bottom blade 21 and the side blade 22 and the bottom surface 20a and the inner side surface 20b of the mixing tank 20, and it is caused by the biting of the aggregate. The squealing noise can be effectively prevented. When the mixing device 6 kneads the powder material, water, additives, and aggregate for a predetermined time, the control device 10 stops the motor 61 and ends the kneading.

In this way, the powder material is charged into the mixing device 6 by the screw conveyor 7, water is supplied by the self-priming centrifugal pump 66, and the powder material and water are mixed by the mixing device 6 to form a mixture. Perform the pre-kneading process. After this pre-kneading step, the aggregate is put into the mixing device 6 by the belt conveyor 8 and the aggregate addition step of adding the aggregate to the mixture is performed. After that, the mixing device 6 performs an aggregate mixing step of mixing the mixture in which the aggregates are mixed in the aggregate adding step. In this way, since the aggregate is added after the mixture of the powder material and the water is formed by the mixing device 6, the noise caused by the addition of the aggregate can be reduced by the mixture. Furthermore, since the aggregate is added after the mixture is formed and the aggregate and the mixture are mixed, it is better than adding the aggregate first and then adding the powder material or water while mixing. The noise associated with mixing can be effectively reduced. In this way, the control device 10 that controls to execute the pre-kneading step, the aggregate adding step, and the aggregate mixing step effectively reduces the noise of the mobile batcher plant 1. And functions as a noise reduction mechanism.

When the kneading of the powder material, water, the additive, and the aggregate is completed, the operator inputs an input commanding the discharge to the operation unit 75 of the control device 10. In response to this, the control device 10 drives the opening / closing door at the bottom of the mixing device 6 to open the discharge port, and discharges the ready-mixed concrete of the ultrafast hard concrete through the chute 69. When an input commanding a predetermined amount of discharge is made to the operation unit 75, the control device 10 opens the discharge port for a time corresponding to the input amount, whereby a predetermined amount of ultrafast hard concrete is released from the chute 69. It is discharged. The discharged ultrafast hard concrete is used for road repair.

If there are multiple repair points along the road, the amount of ultrafast hard concrete used at the multiple points will be manufactured near the first repair point. When a predetermined amount of ultrafast hard concrete is discharged to the first repaired portion, the operator inputs a command to move to the movement mode to the operation unit 75 of the control device 10. When the mode shifts to the movement mode, the control device 10 starts an agitate operation in which the blades 21 and 22 of the mixing device 6 are rotationally driven at a rotation speed slower than that at the time of manufacturing the ultrafast hard concrete. While performing the agitate operation of the mixing device 6, the mobile batcher plant 1 is moved to the next repair location by truck. In this way, since the mixing device 6 is agitated while the mobile batcher plant 1 is being moved, it is possible to prevent the ultrafast hard concrete in the mixing tank 20 from hardening.

When the mobile batcher plant 1 arrives at the next repair location, the operator inputs to the operation unit 75 of the control device 10 to command the discharge. As a result, the control device 10 stops the agitate operation of the mixing device 6, opens the discharge port of the mixing device 6, and discharges the ultrafast hard concrete from the chute 69. In this way, the mobile batcher plant 1 is moved while performing the agitate operation, the ultrafast hard concrete is sequentially discharged to a plurality of repair points, and repairs using the ultrafast hard concrete are performed at all the repair points.

According to the mobile batcher plant 1 of the present embodiment, it is possible to manufacture ultrafast hard concrete in the vicinity of the repaired part and move the repaired part while performing agitate operation, so that a sufficient time until hardening is secured. However, it is possible to provide ultra-fast hard concrete to multiple locations for repair.

In the above embodiment, the powder storage device 3 opens the opening / closing door 3a and puts the powder material into the hopper, but the powder material packing body may be directly installed. FIG. 13 is a perspective view showing the powder storage device 50 of the modified example. The powder storage device 50 of the modified example contains a tubular accommodating portion 51 for accommodating a package of powder material, and a rubber shatterproof ring 52 provided around an opening at the upper end of the accommodating portion 51. It has a plurality of support rods 53, 53, 53 erected upward from the portion 51, a cutter 55 provided at the lower part of the accommodating portion 51, and a discharge portion 56 connected to the lower end of the accommodating portion 51. The powder storage device 50 receives a flexible container bag (hereinafter referred to as a flexible container bag) 58, which is a flexible bag body containing the powder material, as a packing body, stores the powder material, and stores the powder material. It is formed so as to discharge powder to a screw conveyor 7 connected to the lower end of the discharge unit 56. The flexible container bag 58 installed in the powder storage device 50 has a plurality of engaging strings 59, 59 in which both ends of the flexible string are sewn on the surface of the flexible container bag 58. A plurality of the engaging strings 59, 59 are provided at positions corresponding to the support rods 53, 53, 53. A vibrator is connected to the lower end of the support rod 53, and the support rod 53 is formed so as to transmit the vibration generated by the vibrator from the support rod 53 to the powder material in the flexible container bag 58.

When the powder material is charged into the powder storage device 50, the flexible container bag 58 containing the powder material is lifted by a truck crane or the like and placed above the accommodating portion 51, and then the lower portion is placed in the accommodating portion 51. The flexible container bag 58 is lowered so that it can be inserted. At this time, the support rods 53, 53, 53 are inserted between the surface of the flexible container bag 58 and the engaging strings 59, 59, 59, .... When the lower part of the flexible container bag 58 is inserted into the accommodating portion 51, the cutter 55 is operated to make a hole in the flexible container bag 58. When installing the flexible container bag 58, a hole may be made with the cutter 55 due to the weight of the flexible container bag 58. By installing the flexible container bag 58 for accommodating the powder material in this way, the charging of the powder material into the powder storage device 50 is completed.

When the powder material is conveyed from the powder storage device 50, vibration is applied to the powder material in the flexible container bag 58 from the support rod 53, whereby the powder material is applied from a hole formed at the lower end of the flexible container bag 58. Is discharged. The powder material discharged from the flexible container bag 58 is guided to the screw conveyor 7 through the discharge unit 56, and is conveyed to the mixing device 6 by the screw conveyor 7.

According to the powder storage device 50 of the modified example, the work of arranging the flexible container bag 58 containing the powder material is lower than the work of charging the powder material through the upper opening of the hopper of the powder storage device 3. Can be done in position. Therefore, it is possible to reduce the risk of the work of adding the powder material. Further, the powder storage device 50 completes the charging of the powder material by arranging the flexible container bag 58 containing the powder material in the storage portion 51 while engaging the engaging string 59 with the support rod 53. .. Therefore, the powder material can be charged more efficiently and easily than the work of charging the powder material from the flexible container bag 58 into the opening of the hopper with the flexible container bag 58 lifted. Further, since the hopper for accommodating the powder material is not required, the powder storage device 50 can be made lighter, and the mobile batcher plant 1 can be made lighter. Further, since a hole for discharging the flexible container bag 58 is formed in the accommodating portion 51 and the scattering prevention ring 52 at the upper end of the accommodating portion 51 is in close contact with the peripheral surface of the flexible container bag 58, the powder material leaks to the outside. Can be effectively prevented. Therefore, the adverse effect on the environment due to the scattering of the powder material can be effectively prevented.

Further, in the above embodiment, a mixture of ultrafast hard cement and fine aggregate as a powder material was stored in the powder storage device 3 and conveyed by a screw conveyor 7, but the ultrafast hard cement and fine aggregate as powder materials were conveyed. The material may be stored separately and the powder material and the fine aggregate may be transported separately. In this case, a fine aggregate storage device for storing the fine aggregate and a fine aggregate supply device for supplying the fine aggregate to the mixing device 6 may be installed.

Further, in the above embodiment, the mixing device 6 is provided with a bottom blade 21 having a first stirring sliding body 211 and a side blade 22 having a second stirring sliding body 221 to form a noise reduction mechanism, and the mixing device 6 is provided. The noise reduction mechanism is configured by the control device 10 that executes the pre-kneading step, the aggregate addition step, and the aggregate mixing step, but other noise reduction mechanisms may be adopted. For example, as a noise reduction mechanism, a noise reduction wall located at least on the side of the mixing device 6 may be erected on the support frame 12. Further, a side member may be erected on each side of the rectangular support frame 12, and a ceiling member may be provided so as to close the upper end of the side member to form a container body to form a noise reduction mechanism. Further, not limited to the mixing device 6, the powder storage device 3, the aggregate storage device 4, the water tank 5, the screw conveyor 7, the belt conveyor 8, the self-priming centrifugal pumps 66, 71, the control device 10, and the support frame 12 A noise reduction mechanism may be provided to reduce the noise generated from at least one of them.

Further, in the above embodiment, the mobile batcher plant 1 is used for repairing the road, but the mobile batcher plant of the present invention can be widely used for other construction works and civil engineering works.

Further, in the above embodiment, the case of producing ultrafast hard concrete has been described, but the mobile batcher plant of the present invention can be used for producing ordinary concrete, grout, mortar, etc. in addition to ultrafast hard concrete.

The present invention is not limited to the embodiments described above, and many modifications can be made by those who have ordinary knowledge in the art within the technical idea of the present invention.

1 Mobile batcher plant 2 Truck bed 3 Powder storage device 4 Aggregate storage device 5 Water tank 6 Mixing device 7 Screw conveyor 8 Belt conveyor 10 Control device 11 Generator 12 Support frame 14 Butterfly valve 15 Aggregate inlet 18 Load cell 21 Bottom blade 22 Side blade 61 Mixing device motor 65 Additive tank 66,71 Self-priming swirl pump 67,72 Flow meter 68,73 On-off valve 69 Chute 75 Control device operation unit

Claims (17)

A powder storage device that stores pre-mixed powder materials,
Aggregate storage device for storing aggregate and
A water storage device that stores water and
A mixing device that mixes the powder material, aggregate, and water,
A powder transfer device that transports powder materials from the powder storage device to the mixing device,
An aggregate transport device that transports aggregates from the aggregate storage device to the mixing device, and
A water supply device that supplies water from the water storage device to the mixing device,
A control device that controls the operation of the powder storage device, the aggregate storage device, the water storage device, the mixing device, the powder transfer device, the aggregate transfer device, and the water supply device.
Supports at least one of the above powder storage device, aggregate storage device, water storage device, mixing device, powder transfer device, aggregate transfer device, water supply device, and control device, and is formed so as to be mounted on a vehicle. With the support structure
Reduces noise generated from at least one of the powder storage device, aggregate storage device, water storage device, mixing device, powder transfer device, aggregate transfer device, water supply device, control device, and support structure. A mobile batcher plant characterized by having a noise reduction mechanism. In the mobile batcher plant according to claim 1.
The mixing device has a mixing tank having a substantially cylindrical shape and a blade that is rotationally driven in the mixing tank.
The movement characterized in that the noise reduction mechanism is configured by a sliding member provided on the blade, which is made of a flexible material and slides in constant contact with the bottom surface or the inner surface of the mixing tank. Type batcher plant. In the mobile batcher plant according to claim 2.
The bottom sliding member, which is installed at a position corresponding to the bottom surface of the mixing tank of the blade and always in contact with the bottom surface of the mixing tank, and the bottom sliding member which is installed at a position corresponding to the inner surface of the mixing tank of the blade, and the mixing A mobile batcher plant characterized by having a side sliding member that is in constant contact with the inner surface of the tank. In the mobile batcher plant according to claim 2.
The mixing device is a mobile batcher plant comprising a load cell for measuring the mass of materials put into the mixing tank and a posture holding device for holding the posture of the mixing tank. In the mobile batcher plant according to claim 1.
A pre-kneading step in which the powder material is transferred to the mixing device by the powder transfer device and water is supplied by the water supply device, and the powder material and water are mixed by the mixing device to form a mixture.
After the pre-kneading step, the aggregate is transported by the aggregate transport device, and the aggregate is added to the mixture.
A mobile batcher plant characterized in that the noise reduction mechanism is configured by a control device that executes an aggregate mixing step of mixing an aggregate mixed in the aggregate addition step. In the mobile batcher plant according to claim 1.
The mixing device mixes the materials charged into the mixing tank at a predetermined rotation speed according to the type and composition of the material for a predetermined rotation time, and after the mixing operation is completed, the rotation A mobile batcher plant characterized by performing agitate operation that mixes at a rotation speed less than the number. In the mobile batcher plant according to claim 1.
A mobile batcher plant erected on the support structure, wherein the noise reduction mechanism is configured by at least a noise reduction wall installed on a side surface of the mixing device. In the mobile batcher plant according to claim 1.
The noise reduction mechanism is configured by a container body having a side member erected on each side of the rectangular support structure and a ceiling member installed so as to close the upper end of the side member. A featured mobile batcher plant. In the mobile batcher plant according to claim 1.
A mobile batcher plant, wherein the powder storage device is formed so as to receive a package in which the powder material is packed in a bag and store the powder material. In the mobile batcher plant according to claim 9.
The powder storage device forms an outlet for taking out the powder material at the packing body receiving portion that receives the packing body and the bottom of the bag body of the packing body that is received by the packing body receiving portion. A mobile batcher plant comprising a forming portion and a vibrating portion that vibrates the packed body received by the packed body receiving portion to promote discharge of the powder material. In the mobile batcher plant according to claim 1.
A mobile batcher plant characterized in that an on-off valve is provided on the discharge side of the transfer target of the powder transfer device and / or the aggregate transfer device. In the mobile batcher plant according to claim 1.
A mobile batcher plant characterized in that a fiber reinforced material charging device for charging a fiber reinforced material is provided in the mixing device. In the mobile batcher plant according to claim 12.
The fiber reinforced concrete input device is attached to a handrail erected on the support structure.
The height of the portion of the handrail on the tip side of the fiber reinforced concrete loading device is formed to be reducible so that the height is equal to or less than the height limit when the support structure is mounted on the vehicle. A mobile batcher plant featuring. In the mobile batcher plant according to claim 1.
A mobile batcher plant comprising an additive supply device for supplying an additive diluted with water in the mixing device. In the mobile batcher plant according to claim 1.
The control device is control data relating to control of the powder storage device, the aggregate storage device, the water storage device, the mixing device, the powder transfer device, the aggregate transfer device and the water supply device according to the type and amount of the product to be manufactured. A mobile batcher plant characterized by having. In the mobile batcher plant according to claim 1.
A mobile batcher plant that manufactures ultrafast hard concrete, fiber reinforced concrete, ordinary concrete, mortar or grout. In the mobile batcher plant according to claim 1.
The vehicle equipped with the above support structure is a mobile batcher plant characterized by being a medium-duty truck.

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