KR101162239B1 - concrete mix apparatus reducing cost of plant, install and drive - Google Patents

Abstract

Our company simplifies the concrete plant equipment to reduce the production cost, and also maximizes the efficiency of management of the equipment equipment to secure the internal space of the factory to increase the efficiency of the equipment management of the operator, and water or additive chemicals that occupy a lot of space inside the plant. By replacing the load cell metering method with a flow meter to control the measurement using the output signal of the flow meter, more accurate weighing is possible than the existing load cell method. Is an invention started with the problem to provide a concrete mixing facility that can produce a normal concrete mixture.
In this application, in the apparatus and method for producing a concrete product by mixing water and chemical additives to produce a water / drug mixture and then mixed with aggregate and cement, an electronic type that produces 4-20 mmA range or PULS output without using a load cell. By using a flow meter, water and chemical additives can be mixed in an appropriate ratio, and aggregate weighing tank, cement weighing tank, and water / chemical mixing tank are provided as one integrated weighing unit, so that the weighing part is manufactured without resorting to a separate frame. A concrete mixing plant having a structure that is easy to install, to separate, and to move.

Description

Concrete mix apparatus reducing cost of plant, install and drive

The present invention relates to a concrete compound mixing device for reducing the manufacturing cost, installation cost, operating cost of the concrete mixing equipment.

The present invention relates to a concrete mixture mixing device for discharging by mixing cement, water and aggregates (sand, gravel, etc.), and the aggregate and cement, such as sand and gravel to make a high-quality concrete mixture to be sent to construction or civil works And concrete mixing device to provide concrete mixtures of physical properties that meet certain requirements by adding mixed water or chemicals for quality improvement, but may be classified into storage devices, metering devices, and mixing devices of various standard materials. It is provided as a manufacturing facility which is connected in a complex and consists of an integrated system.

In order to provide high quality concrete compound, aggregate, sand, water, additives, etc. are mixed and discharged by mixing each material in each weighing hopper in a specific ratio by mixing design by mixing design. It is installed to have a load cell as a weighing device for weighing each manufacturing facility in order to mix aggregates, sand, water, or additives in a specific amount. For this reason, the site volume occupied by overlapping the frame structure was excessively increased, and the internal space of the plant became complicated in terms of operation management after installation, which made it difficult for operation management to follow.

Therefore, our company simplifies the concrete plant equipment to reduce the manufacturing cost, maximize the management efficiency of the equipment equipment, secure the internal space of the factory, improve the equipment management efficiency of the operator, and supply water or additives that occupy a lot of space inside the plant. The invention started with the task of improving the weighing error rate caused by shaking during weighing in the existing load cell method by replacing the load cell weighing method with an electronic flowmeter and performing measurement control using a signal with a 4-20 mA range or a PULS output.

When mixing concrete in the field, the quantity has a great influence on the strength of concrete, so sufficient consideration should be given to kneading. The aggregate material, which is a blending material, has a different water content depending on the storage conditions and climatic conditions. Using aggregate increases the amount of concrete in the aggregate by the amount of surface, and using dry aggregate results in a decrease in the amount of concrete in the effective absorption.

Therefore, as a means for providing a high-quality concrete has been a lot of research from the prior art, for example, the concrete metering device disclosed in Patent No. 0866855 as an aggregate supply means for supplying aggregate aggregate hopper, water supply pipe and water supply means and Aggregate weighing container for receiving and measuring the fine aggregate supplied from the aggregate hopper, and a measuring tank for receiving the fine aggregate supplied from the aggregate hopper as water immersion aggregate together with water supplied from the water supply pipe, and for measuring the mass of the immersion aggregate in the measuring tank. As a load cell as a immersion aggregate mass measuring means, an electrode sensor as a water level measuring means for measuring the water level of the immersion aggregate in the weighing tank, and a water level holding device as a level holding means for maintaining the level of the immersion aggregate in the weighing tank at a desired level. A configured application is disclosed.

In addition, Patent No. 0904715 in the prior art of a similar configuration to the present invention is shown in the concrete mixing batch plant, as shown in Figure 1a, the conventional concrete mixing device (10) large aggregate supply part (11) In the description, the aggregates such as sand and gravel are stored in the aggregate supply hoppers 12a, 12b, 12c, and 12d of the aggregate supply part 11, and then the conveyor belt 13 and the transfer. It is conveyed to the main body part 15 by a conveying means such as the kenbearer 14, and put into the weighing part 16. In the weighing part 16, water and chemical additives supplied separately are measured and weighed in a quantitative manner. , The metered material is mixed with the aggregate and cement into the mixing part 17 and mixed, and then the quantitatively mixed concrete is transferred to the construction site by a ready-mixed concrete truck or the like through the concrete supply part 18. It can be seen that the description is presented.

However, in order to mix the concrete mixture at an appropriate ratio, accurate measurement is required. In the case of a load cell conventionally used in the weighing part 16, the precision does not exceed 1/5000, and the value measured according to humidity and temperature changes in winter or In low temperature areas, or in rainy or high humidity areas, the mixing ratio of water and chemical additives was not accurately matched, and thus there was a problem that a normal concrete mixture was not produced.

In order to separately measure aggregate, cement, water, and chemical additives in the weighing part, aggregate weighing tanks for measuring aggregate, cement weighing tanks for cement, and water / drug mixing tanks for mixing and measuring water and chemical additives, respectively It should be provided independently, and the load cell should be attached to each of the water and each chemical additive, which causes the space to be occupied by the weighing part, and the mixing part 17 is generally installed at the lower end of the weighing part and The concrete supply hopper 18 also occupies the same area as the weighing part and has been a cause for widening the site volume occupied by the plant as a whole.

Our company simplifies the concrete plant equipment to reduce the production cost, and also maximizes the efficiency of management of the equipment equipment to secure the internal space of the factory to increase the efficiency of the equipment management of the operator, and water or additive chemicals that occupy a lot of space inside the plant. By replacing the load cell metering method with a flow meter and performing measurement control using a signal with a range of 4-20 mA or PULS output, it is possible to measure more accurately than the existing load cell method, while maintaining errors caused by temperature and humidity. It is an invention started with a problem to achieve a method and apparatus for producing a concrete mixing facility that can produce a normal concrete mixture even in a place where the conditions are not good.

Therefore, the present invention is a device and method for producing a concrete product by mixing water and drug additives to produce a water / drug mixture and then mixed with aggregate and cement, using an electronic flow meter without using a load cell in the range of 4 ~ 20mA The present invention provides a method and apparatus for installing a concrete mixing facility, characterized in that mixing of water and chemical additives at an appropriate ratio is performed by performing measurement control using a signal outputting PULS.

In addition, the aggregate weighing tank, the cement weighing tank and the water / drug mixing tank are provided as one integrated weighing unit so that the weighing part has a structure that is easy to manufacture, install, separate, and move without resorting to a separate frame. It is intended to provide a method for installing a mixing facility and an apparatus thereof.

As a means for achieving the above object, the present invention is configured to include an aggregate supply part, a metering part, a mixing part, and a concrete mixture supply part, and the concrete mixing for discharging and mixing the aggregate, cement, water, and chemical additives at a predetermined ratio. In the installation method of the facility, the metering part of the concrete mixing device is provided such that the water / chemical mixing tank, the cement supply part, and the aggregate supply part form an integral weighing unit and have 4 to 8 vertical support shafts, and the integral weighing on the side of the mixing part. It is provided to have a vertical support shaft corresponding to the unit, the vertical support shaft of the weighing part is mounted on the vertical support shaft of the mixer part is provided in a configuration that is assembled / separated, the water and chemical mixing tank is introduced into the water and chemical additives An electronic flow meter is installed in the pipeline to provide signals for measurement control using signals that range from 4 to 20 mA or output PULS. It is the invention of the technical idea to reduce the manufacturing / installation / operating cost of the concrete mixing device by providing a configuration to control the input ratio by sensing.

The present invention is configured to include an aggregate supply part, a metering part, a mixing part, and a concrete hop compound supply part, and means for providing a concrete mixing device for discharging and mixing aggregate and cement with water and chemical additives at a predetermined ratio. The metering part of the mixing device is composed of a water / drug mixing tank, a cement supply unit, and an aggregate supply unit, and an electronic flow meter is installed in the water / drug mixing tank to which water and chemical additives are injected to adjust the mixing ratio by detecting a pulse signal. It is provided so that, in the water / chemical mixing tank in the metering part of the concrete mixing device, the water and chemical additives are introduced into the pipeline to recover the water and chemical additives is formed again, the recovery pipeline is provided with a recovery valve Mixing water and chemical additives by controlling the recovery valve according to the pulse signal of the electronic flow meter Has the spirit to be to adjust the rate.

In addition, in the weighing part of the concrete mixing device of the present application, the water / drug mixing tank, the cement supply part, and the aggregate supply part are provided to have four to eight vertical support shafts, which are bundled into an integral weighing unit, and correspond to the integral weighing unit on the side of the mixing part. It is provided to have a vertical support shaft, the vertical support shaft of the weighing part is mounted on the vertical support shaft of the mixer part is provided in a configuration that is coupled / separated.

Therefore, in the water / drug mixing tank of the present application, it is possible to mix water and chemical additives at an appropriate ratio by using an electronic flow meter without using a load cell, so that more accurate weighing is possible than the conventional load cell method. It can provide concrete mixing facilities that can produce high quality concrete mixture even in places where the conditions are not good by reducing the error caused by it. Also, aggregate weighing tank, cement weighing tank and water / chemical mixing tank are provided as one integrated weighing unit. By doing so, the weighing part can implement a concrete mixing facility that saves factory floor area while reducing the cost of maintenance while having a structure that is easy to manufacture, install, separate, and move without relying on a separate frame.

DETAILED DESCRIPTION Embodiments in which the technical spirit of the present application are specifically implemented will be described in detail with reference to the accompanying drawings in the following detailed description.

The concrete mixing device provided herein has the advantage of reducing the overall area of the metering part by adjusting the ratio of water and chemical additives using an electronic flow meter without using a load cell, and thus reducing the total area of the mixing plant.

In particular, by using an electronic flow meter it is possible to more accurately match the mixing ratio of water and chemical additives to produce a high-quality concrete mixture.

In addition, by building the metering part of the concrete mixing plant as an integrated unit, there is an effect that the overall manufacturing / installation / operating costs are reduced.

Figure 1a is a block diagram of a conventional concrete mixing device.
Figure 2a is a schematic view showing only a conventional body part portion excluding the aggregate supply part in the conventional concrete mixing device.
Figure 2b is an illustration of the process of the water and chemical additives are each metered by the load cell and then introduced into the water / chemical mixing tank.
Figure 3 is an exemplary diagram illustrating the process of the water and chemical additives to the water / chemical mixing tank using the electronic flow meter of the present application.
4 is an exemplary view showing a configuration in which the aggregate weighing tank, the cement weighing tank, and the water / drug mixing tank as an integrated weighing unit in the weighing part.

Prior to presenting the embodiments of the invention for realizing the technical idea of the present application, the terms or words used in the specification or claims of the present application should not be construed as being limited to the ordinary or dictionary meanings, The scope of protection should be construed as meaning and concept corresponding to the technical idea of the present invention, the use examples presented in the specification or drawings are only the most preferred embodiments of the present invention and do not represent all of the technical ideas of the present application. It is to be understood that there may be various equivalents and variations in place of them at the time of the present application.

In addition, the embodiments of the drawings presented below in the technical spirit of the present application is one application example for implementing the technical spirit of the present application, which is used in the existing concrete mixing apparatus, but a separate control system is presented herein Of course, it can be applied in addition to the embodiment configuration.

Figure 2a is a schematic view showing only a portion of the conventional body parts excluding the aggregate supply part in the conventional concrete mixing device to show the technical configuration features of the present application.

When the main body part 15 is divided into upper and lower parts, a weighing part 16 and a mixing part 17 and a vehicle such as a truck ready-mixed concrete are mixed at the lower end of the mixing part, although not shown to avoid complexity. It can be provided in a structure having a space part 18 for taking out the concrete mixture, these metering part 16, mixing part 17 and the space part 18, respectively, the steel frame 20 is horizontal bar, vertical Assembled with a bar and installed to support the weighing part, the mixing part and the space part, respectively, in FIG. 2A to simply install the mixing part frame 21 and the metering part horizontally installed in a structure for supporting the mixing part. It is shown in a structure having a horizontally installed weighing part frame 22 and vertical support shafts 23 and 24 for supporting them vertically. The mixing part frame 21 is provided with a mixing device 17a. The upper metering part frame 22 is provided with a water / drug mixing tank 16a, a cement input tank 16b, and an aggregate input tank 16c, respectively, and a plurality of vertical support shafts are provided, although not shown. The chemical mixing tank 16a, the cement input tank 16b, and the aggregate input tank 16c are respectively supported, and the weight is supported by the weighing part frame 22.

Figure 2b is a schematic diagram illustrating a process in which water and chemical additives are respectively metered by a load cell and then introduced into a water / drug mixing tank in a conventional concrete mixing device, and in FIG. 2a, it is simply supported by the metering part frame 22. In FIG. 2B, the portion labeled with only the water / drug mixing tank 16a is illustrated in the embodiment applied to the actual site, and the water storage tank 21a, the chemical additive A storage tank 21b, and the chemical additive B storage tank are illustrated. At 21c, water and drug additives are stored in storage containers 24a, 24b, and 24c, respectively, located at the upper part of the weighing part frame through the pipes 23a, 23b, and 23c using pumps 22a, 22b, and 22c, respectively. In the process of injecting the water and the chemical additives A and B stored in the storage container into the water / drug mixing tank 16a by using a valve, the load cell (25) can be used to know the input amount of the chemical additive A and the chemical additive B. ) Each The attached hoppers 26a and 26b are respectively installed at the lower ends of the chemical additive A storage container 24b and the chemical additive B storage container 24c, and then mixed with water to measure the input amount with the load cell 27. It shows the structure which puts into the water / chemical mixing tank 16a after matching the input ratio of water and the chemical additives A and B.

Therefore, in the conventional concrete mixing device, a storage vessel is separately installed at the top of the water / drug mixing tank from the storage tank of the water and the chemical additive, and a hopper having a load cell is additionally provided / installed to measure the input amount of the water and the chemical additive. As a result, there was a problem in that it brought complexity to the concrete mixing device and took a lot of space to operate them, and also, by measuring the mixing ratio of the water and the chemical additives using a load cell, there could be a slight error. It was inadequate to produce water / drug mixtures, and in particular, there was a structural problem that made it difficult to achieve an accurate ratio because the measured value of the load cell was changed by temperature and humidity.

Figure 3 is an exemplary diagram illustrating a method of adding water and drug additives to the water / drug mixing tank using the electronic flow meter provided in the present invention.

In the concrete mixing facility provided herein, each of the water and chemical additives from the water storage tank 31a and the chemical additive A storage tank 31b and the chemical additive B storage tank 31c into the water / drug mixing tank 16a. Input flow paths 32a, 32b, and 32c for inputting are respectively provided, and the electronic flowmeters 33a and 33b capable of measuring and controlling a 4-20 mA range or PULS output at intermediate positions of the input pipes 32a, 32b and 32c. , 33c are respectively installed, and recovery pipes 34a, 34b, and 34c are installed on the upper portion of the electronic flowmeter so as to recycle water or chemical additives back to the original storage tanks. And 32b, 32c and recovery lines 34a, 34b, 34c are provided with inlet valves 35a, 35b, 35c and recovery valves 36a, 36b, 36c, respectively.

The electromagnetic flowmeters 33a, 33b, and 33c operate by applying a magnetic field perpendicular to a pipeline through which fluid flows, and install an electrode opposite to a pipe wall perpendicular to the direction of the magnetic field and the direction through which the fluid flows to cause electromagnetic induction to occur. As a device for calculating the flow rate by measuring the voltage, for example, water is stored in the water storage tank 31a, and then enters the conduit 32a by the pump 37a and is transferred to the water / drug mixing tank 16a. The electronic flow meter 33a passes through the pipe line, and an electrical signal, ie, a pulse, is generated in proportion to the flow rate of the electronic flow meter, and the recovery valve 36a is operated in accordance with the signal to return to the recovery pipe line 34a. By controlling the amount of water to be recovered to the water storage tank through the control of the amount of water introduced into the water / drug mixture tank, drug additive A and drug additive B also flows into the water The control method for controlling the same is possible.

At this time, the control device (37a, 37b, 37c) is provided between the electronic flow meter and the recovery valve to control the recovery valve by receiving a pulse generated from the electronic flow meter can be controlled in the coat roll box, the control device (37a) , 37b and 37c control the recovery valves 36a, 36b, and 36c by tightening or releasing the recovery valves 36a, 36b, and 36c according to the pulse signals generated while the electronic flowmeters 33a, 33b, and 33c operate. In order to control and more precisely control the dose, the control device is preferably provided in a structure that can be controlled in conjunction with the inlet valve (35a, 35b, 35c).

Figure 4 in the weighing part of the present application to aggregate aggregate weighing tank, cement weighing tank and water / chemical mixing tank as an integral weighing unit to have a vertical support shaft 41 shared by the aggregate weighing tank, cement weighing tank and water / chemical mixing tank of the mixer part As an exemplary view showing an embodiment coupled to the vertical support shaft, Figure 4a shows a pipe line to which water or chemicals are supplied to the water / drug mixing tank 16a of the metering part, and in FIG. 4b the mixer part to the left. To the right of the side view, the side view of the metering part is shown as the vertical support shaft center, and in FIG. 4C, the state of FIG.

The water / drug mixing tank 16a, the cement weighing tank 16b, and the aggregate weighing tank 16c are bundled together to form an integrated weighing unit 16 through FIG. 4A to provide a structure having vertical support shafts shared by them, or water / Apart from the chemical mixing tank 16a, only the cement weighing tank 16b and the aggregate weighing tank 16c are bundled into one and provided in a structure having a vertical support shaft shared only by the cement weighing tank 16b and the aggregate weighing tank 16c. As can be seen, the conventional water / drug mixing tank 16a is provided with storage containers 24a, 24b, and 24c on top of the weighing part frame as can be seen in FIG. 2b and the water / drug mixing tank 16a. In the process of using the load cell 25 in the process of inputting into), it is impossible to bundle the aggregate weighing tank 16c, the cement weighing tank 16b, and the water / drug mixing tank 16a into an integrated weighing unit. Structure, but in the technical concept of the present invention It is not a structure having a load, but as a structure that embeds the electronic flowmeter in the pipe as shown in Figure 3 except for the facility having a load, cement weighing tank (16b) and aggregate weighing tank (16c) by tying together an integrated weighing unit It is possible to form, and it becomes possible to form the integral weighing unit by adding the water / chemical mixing tank 16a to the structure.

4B of the present application shows a side view of the mixer part 17 on the left side and a side view of the metering part 16 on the right side with respect to the vertical support axis, and FIG. 4C shows the state of FIG. 4B in a top plan view. As shown, the water / drug mixing tank 16a, the cement weighing tank 16b, and the aggregate weighing tank 16c constituting the weighing part 16 are the upper horizontal bar 43, the lower horizontal bar 44, and the inclined horizontal level. It is provided in a structure having the vertical support shafts 41a, 41b, 41c, 41d, which are united by the bar 45 to form an integral measuring unit and share them, and the mixer part 17 also has a vertical support shaft of the weighing part. Correspondingly provided with the same number of vertical support shafts 42a, 42b, 42c, 42d, the vertical support shafts 41a, 41b, 41c of the weighing part above the vertical support shafts 42a, 42b, 42c, 42d of the mixer part. , 41d) is provided to have a configuration to be assembled and assembled integrally by mounting and bolted fastening respectively This does not depend on the frame production / installation / separation / movement illustrates that may have a straightforward structure.

Therefore, as provided in the structure in which the metering part 16 is placed on the top of the mixer part 17 as in the technical idea of the present application, as manufactured in the same application standard as can be seen in Figure 4b or 4c to manufacture them When transporting by vehicle, it is easy to align and load as shown in Fig. 4b or 4c, and it is transported to the factory so that the vertical support shaft 41a of the weighing part is placed on the vertical support shafts 42a, 42b, 42c, and 42d of the mixer part even when installed on site. , 41b, 41c, and 41d) are mounted and mounted, and easily installed by bolting fastening, while maintaining the minimum occupancy ratio of the paper area occupied by the facility. In the drawing, the vertical support shaft 41 of the weighing part 16 or Although the vertical support shaft 42 of the mixer part 17 is provided in four configurations, the size and capacity of the water / drug mixing tank 16a, the cement weighing tank 16b, and the aggregate weighing tank 16c are provided. Vertical support shaft (41) is 4-8 In such acceleration it can be provided in as many as, of course.

10: concrete mixing facility 11: aggregate supply part
12: aggregate supply hopper 15: body part
16: metering part 16a: water / chemical mixing tank
16b: aggregate input tank 16c: cement input tank
17: mixing part 17a: mixing device
18: concrete supply part 18a: concrete supply hopper
18b: ready-mixed concrete truck 20: steel frame
21: Mixing part frame 22: Weighing part frame
23, 24: vertical support shaft 35: load cell
43: electronic flow meter 44: recovery pipe
45: inlet valve 46: recovery valve
47: controller

Claims (4)

In the method of installing a concrete mixing facility configured to include an aggregate supply part, a metering part, a mixing part, and a concrete mixture supply part to discharge the aggregate, cement, water, and chemical additives at a predetermined ratio,
The metering part 16 of the concrete mixing device is such that the water and chemical mixing tank 16a, the cement supply unit 16b, the aggregate supply unit 16c form an integrated metering unit and have 4 to 8 vertical support shafts 23. It is provided, and the side of the mixing part is provided to have a vertical support shaft 23 corresponding to the integrated measuring unit, so that the vertical support shaft of the metering part 16 above the vertical support shaft 23 of the mixer part 17 It is provided in a configuration that is assembled and separated, and the water and chemical mixing tank (16a) in the water and chemical additives are introduced into the pipeline is provided with an electronic flowmeter that outputs a 4-20mA range or PULS output measurement control using the signal Concrete mixing facility installation method characterized in that to reduce the production / installation / operating costs of the concrete mixing device provided by including a configuration to adjust the input ratio. In the concrete mixing device configured to include an aggregate supply part, a metering part, a mixing part, and a concrete hop compound supply part, and to mix and discharge the aggregate, cement, water and chemical additives at a predetermined ratio,
The metering part 16 of the concrete mixing device is composed of water and chemical mixing tank 16a, cement supply unit 16b, aggregate supply unit 16c, the water and chemical mixing tank in the water and chemical additives are introduced into the pipeline Concrete mixing device, characterized in that provided with an electronic flowmeter (43) that produces a 4-20 mA range or PULS output is provided to adjust the mixing ratio by detecting a signal. The method of claim 2,
Water and chemical additives are added to the water and chemical mixing tank 16a in the metering part of the concrete mixing device, and a recovery pipe 44 for recovering water and chemical additives is formed, and the recovery pipe 44 The concrete mixing device, characterized in that provided with a recovery valve 46 to control the recovery valve in accordance with the pulse signal of the electronic flow meter (43) to adjust the mixing ratio of water and chemical additives. The method of claim 2,
In the metering part 16 of the concrete mixing device, the water and chemical mixing tank 16a, the cement supplying part 16b, and the aggregate supplying part 16c are provided to have 4 to 8 vertical support shafts by tying together an integral weighing unit, and mixing part. The side of the is provided to have a vertical support shaft corresponding to the integrated measuring unit, the concrete mixing device, characterized in that the vertical support shaft of the weighing part is mounted on the vertical support shaft of the mixer part is provided in a configuration that is coupled / separated.

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