CN111634696A - Coastal earthwork conveying system and construction method thereof - Google Patents
Coastal earthwork conveying system and construction method thereof Download PDFInfo
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- CN111634696A CN111634696A CN202010417175.8A CN202010417175A CN111634696A CN 111634696 A CN111634696 A CN 111634696A CN 202010417175 A CN202010417175 A CN 202010417175A CN 111634696 A CN111634696 A CN 111634696A
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- 238000010276 construction Methods 0.000 title claims abstract description 16
- 238000012216 screening Methods 0.000 claims abstract description 53
- 238000007599 discharging Methods 0.000 claims abstract description 50
- 239000000463 material Substances 0.000 claims abstract description 29
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 9
- 230000009194 climbing Effects 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 5
- 230000001174 ascending effect Effects 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- 239000002689 soil Substances 0.000 description 18
- 229910000831 Steel Inorganic materials 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000007873 sieving Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 229920002635 polyurethane Polymers 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- 230000004044 response Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G63/00—Transferring or trans-shipping at storage areas, railway yards or harbours or in opening mining cuts; Marshalling yard installations
- B65G63/008—Transferring or trans-shipping at storage areas, railway yards or harbours or in opening mining cuts; Marshalling yard installations for bulk material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G67/00—Loading or unloading vehicles
- B65G67/60—Loading or unloading ships
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G67/00—Loading or unloading vehicles
- B65G67/60—Loading or unloading ships
- B65G67/606—Loading or unloading ships using devices specially adapted for bulk material
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- Engineering & Computer Science (AREA)
- Ocean & Marine Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Ship Loading And Unloading (AREA)
Abstract
The invention relates to a coastal earthwork conveying system and a construction method thereof, which are used for transporting excavated earthwork from a transfer station to an earthwork carrier near a wharf, wherein the system comprises: a transfer device fixed between the transfer station and the adjacent wharf; the screening device is fixed on the transfer station and used for screening materials, and comprises a feeding port and a screening port which are arranged above the conveying device; the guide chute is used for accommodating earthwork falling from the screening device and is arranged on the conveying device to move through the conveying device; the discharging device is fixed on the dock and located below the conveying device, and comprises a discharging groove and a discharging hopper, wherein the discharging groove is used for containing earthwork falling from the guide chute, and the discharging hopper is located above the earth-moving ship and adjustable in pitching angle. The invention can be adapted to the position of the earth-moving ship by adjusting the pitching angle of the discharge hopper, is convenient to dump and solves the problem that the near-sea earthwork is difficult to transport in a long distance in the prior art.
Description
Technical Field
The invention relates to the field of building construction, in particular to a near-sea earthwork conveying system and a construction method thereof.
Background
The project of the coastal area needs large output of soil and various soil types, and mainly takes backfilled plain soil, silt, sandy soil and cohesive soil as main materials.
The conventional earthwork outward transportation mode in the prior art is to transport the earthwork to a spoil point by a mud head vehicle in a long distance, and the problems of dust raising, noise, muck falling and low efficiency exist in vehicle transportation. Or the slurry is pumped to a soil abandoning point after being flushed by adopting a hydraulic machine. However, this method has a high requirement on soil quality, is only suitable for excavation of earth whose soil quality is silt or silty sand, and cannot be applied to most of soil quality which is difficult to dissolve in water, such as miscellaneous fill, silt, and cohesive soil in construction projects.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a near-sea earthwork conveying system and a construction method thereof, and solves the problem that the near-sea earthwork is difficult to convey in a long distance in the prior art.
The technical scheme for realizing the purpose is as follows:
the invention provides a coastal earthwork conveying system, which is used for conveying excavated earthwork from a transfer station to an earthwork carrier adjacent to a wharf, and comprises:
a transfer device fixed between the transfer station and the adjacent wharf;
the screening device is fixed on the transfer station and used for screening materials, and comprises a feeding port and a screening port which are arranged above the conveying device;
the guide chute is used for accommodating earthwork falling from the screening device and is arranged on the conveying device so as to move through the conveying device; and
the discharging device is fixed on the wharf and located below the conveying device, and comprises a discharging groove and a discharging hopper, wherein the discharging groove is used for containing earthwork falling from the guide chute, and the discharging hopper is located above the earth-moving ship and adjustable in pitching angle.
The sea-facing earthwork conveying system is further improved by comprising a feeding platform which is erected above the screening device and used for vehicles to run, wherein the edge of the feeding platform corresponds to the feeding port.
A further improvement of the present invention in the near-sea earthwork transfer system,
the conveying device comprises a plurality of sections of belt conveyors connected with each other;
and gradually ascending and climbing the multi-section belt conveyor from the transfer station to the direction close to the wharf.
A further improvement of the present invention in the near-sea earthwork transfer system,
the screening device includes:
the eccentric vibrating screen is arranged between the feeding port and the screening port;
an iron attracting device for attracting iron pieces mixed in the earth.
A further improvement of the sea-side earthwork transport system of the present invention is that the discharge apparatus further comprises:
a fixed platform and a tower fixed to the adjacent wharf, wherein the fixed platform is close to the conveying device;
the fixing frame is horizontally fixed between the fixing table and the tower and is positioned at the bottom of the conveying device;
the adjustable frame is hinged to the fixed frame and extends towards the direction of the earth-moving ship, and the discharge hopper is arranged at the end part of the adjustable frame;
the winch is arranged on the fixed platform, a guy cable is wound on the winch, the guy cable is fixedly connected with the adjustable frame after bypassing the top of the tower frame, and the guy cable is controlled by the winch to adjust the pitching angle of the adjustable frame, so that the discharge hopper is adjusted; and
the discharging transmission belt is arranged on the fixed frame and the adjustable frame, and the discharging groove is arranged on the discharging transmission belt to realize movement.
The invention further improves the sea-facing earthwork conveying system, which also comprises:
the cleaning device is arranged on the conveying device;
the cover is arranged on the protective device of the conveying device.
The invention also provides a construction method using the coastal earthwork conveying system, which comprises the following steps:
pouring the excavated earthwork into a screening device through a feeding hole, and falling into the material guide groove through the screening hole after being screened by the screening device;
starting a conveying device to move the material guide groove to the adjacent wharf, and pouring earthwork of the material guide groove into the discharge chute;
adjusting a pitch angle of the discharge hopper to correspond to the earth-moving vessel; and
and dumping the earthwork in the discharge chute into the earth-moving ship through the discharge hopper.
The construction method of the sea-side earthwork conveying system is further improved in that a feeding platform for vehicles to run is provided, and the feeding platform is erected above the screening device, so that the edge of the feeding platform corresponds to the feeding port.
The construction method of the sea-facing earthwork transportation system of the present invention is further improved in that the discharging device further comprises:
providing a fixed platform and a tower, fixing the fixed platform and the tower to the adjacent wharf, wherein the fixed platform is close to the conveying device;
providing a fixed frame, horizontally fixing the fixed frame between the fixed table and the tower, wherein the fixed frame is positioned at the bottom of the conveying device;
providing an adjustable frame, hinging the adjustable frame to the fixed frame and extending towards the direction of the earth-moving ship;
providing a winch, installing the winch on the fixed platform, winding a guy cable on the winch, fixedly connecting the guy cable with the adjustable frame after the guy cable is wound around the top of the tower frame, and controlling the guy cable through the winch to adjust the pitching angle of the adjustable frame; and
and providing a discharging transmission belt, installing the discharging transmission belt on the fixed frame and the adjustable frame, and installing the discharging groove on the discharging transmission belt to realize movement.
The construction method of the sea-side earthwork transportation system of the invention is further improved by providing a cleaning device and installing the cleaning device on the conveying device.
The invention has the beneficial effects that:
according to the invention, the conveying device is fixed between the transfer station and the adjacent wharf, earthwork is firstly poured into the screening device for screening, then is conveyed to the adjacent wharf through the conveying device, and is poured into the earth-carrying ship through the discharging device arranged on the adjacent wharf. The discharging device comprises a discharging hopper which is positioned above the earth-moving vessel and has an adjustable pitching angle, and the pitching angle of the discharging hopper is adjusted to be adapted to the position of the earth-moving vessel, so that the discharging device is convenient to dump.
Drawings
FIG. 1 is a schematic view of a screening device of the marine earthwork transport system of the present invention.
FIG. 2 is a schematic view of a conveyor of the marine earthmoving system of the invention.
FIG. 3 is a schematic view of a discharge apparatus of the marine earthwork transport system of the present invention.
FIG. 4 is a cross-sectional view of a self-aligning idler of the marine earthmoving conveyor system of the invention.
FIG. 5 is a cross-sectional view of the off tracking switch of the sea-side earth-moving system of the present invention.
Fig. 6 is a cross-sectional view of the rain shield of the marine earthwork transport system of the present invention.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Referring to FIG. 1, a schematic diagram of a screening device of the present invention is shown. FIG. 2 is a schematic view of a conveyor of the marine earthmoving system of the invention. FIG. 3 is a schematic view of a discharge apparatus of the marine earthwork transport system of the present invention. Referring to fig. 1 to 3, the sea-side earth transportation system of the present invention for transporting excavated earth from a transfer site 10 to an earth-moving vessel 12 adjacent to a quay 11 includes:
a transfer device 20 fixed between the intermediate transfer station 10 and the adjacent quay 11;
the screening device 30 is fixed on the transfer station 10 and used for screening materials, and the screening device 30 comprises a feeding port and a screening port which are arranged above the conveying device 20;
a guide chute 40 for receiving the earthwork from the sieving device 30, the guide chute being provided on the conveyer 20 to be moved by the conveyer 20; and
a discharge device 50 fixed adjacent to the quay 11 and below the conveyor 20, the discharge device 50 including a discharge chute for receiving the earth falling from the chute 40, and a discharge hopper 57 which is positioned above the earth-moving vessel 12 and is adjustable in pitch.
As a preferred embodiment of the sea-side earthwork transportation system of the present invention, referring to fig. 1, the present invention further includes a feeding platform 60 mounted above the material sieving device 30 for the vehicle to travel, wherein an edge of the feeding platform 60 corresponds to the feeding opening.
Specifically, holes are formed in the loading platform 60 according to the distance between the travelling cranes, and the edges of the holes correspond to the loading ports. The loading platform 60 is higher than the screening device 30, and a vehicle loaded with earthwork travels on the loading platform 60 and dumps the earthwork through the hole of the loading platform 60 to the loading port of the screening device 30 below.
The loading platform 60 is made of reinforced concrete structure or steel structure, and can directly unload soil by a mud head vehicle or load soil to the opening by an excavator.
As a preferred embodiment of the present invention, the material sieving device 30 comprises: locate the eccentric type shale shaker between material loading mouth and sieve material mouth.
Specifically, an eccentric vibrating screen is arranged between a feeding port and a screening port, the screen surface of the eccentric vibrating screen is a slope surface with a horizontal inclination angle of more than or equal to 5 degrees, and the diameter of a screen hole is smaller than the particle size of a large stone block. The screen cloth pole that arranges along domatic direction sets up in the upper strata for the great stone of particle diameter will be sieved out and fall along domatic and fall down the gui ji. According to the invention, stones with larger particle sizes are screened out, so that the conveying device 20 is prevented from being damaged, and the slope surface screening efficiency is improved.
The top of the screening device 30 is funnel-shaped to achieve the effects of collecting materials and buffering. The included angle between the side wall of the funnel and the horizontal plane is less than 60 degrees, and the blanking speed is slowed down so as to reduce the impact on the conveying device 20.
Specifically, the material guiding grooves 40 are arranged along two sides in the belt under the material sieving device 30, so that the conveying device 20 can uniformly guide and convey earthwork during centralized feeding and discharging. The trough surface of the guide chute 40 is tightly attached to the lower part of the funnel-shaped structure of the screening device 30, the trough panel is made of steel plates, the back surface of the trough panel is provided with section steel serving as a keel to improve rigidity, and the supporting legs are made of angle steel and installed in the conveying device 20.
Further, the present invention includes an iron attracting device 21 for attracting iron pieces mixed in the earth. The iron pieces mixed in the earthwork are sucked up by the iron sucker 21 and then are thrown out by the iron unloading belt, so that the purpose of automatic cleaning is achieved, and the longitudinal scratching of the conveying device 20 can be effectively prevented.
As a preferred embodiment of the sea-side earth-moving conveyor system of the present invention, the conveyor 20 comprises a plurality of interconnected belt conveyors; the multi-segment belt conveyor gradually ascends and climbs in the direction from the transition 10 to the adjacent wharf 11, so that a certain height is raised in the soil direction in the process that the conveying device 20 conveys the soil, and the discharging is realized through falling conveniently and subsequently. The transfer device 20 includes a frame 22, and a belt conveyor provided to the frame 22.
Specifically, in the conveying device 20, the previous conveyor gradually ascends and climbs in the head range, the climbing angle is determined according to the belt property and the soil quality (internal friction angle and cohesive force), and is not more than 13 degrees, and the previous conveyor is ensured to be higher than the next conveyor and can be smoothly dropped on the next conveyor.
Specifically, a fixed belt conveyor is provided according to a line run between the intermediate transfer 10 and the adjacent quay 11, and a multi-segment belt conveyor is generally used for a long-distance conveying run to be connected in segments.
Furthermore, a tension device 23 is arranged below the head of each section of belt conveyor to ensure that the belt has enough tension and the belt conveyor can normally run. The type of tensioning device 23 is selected according to the length and mounting height of the segments. The spiral tensioning mode is adopted for a conveyor with a short stroke, the gravity tensioning mode is adopted for a conveyor with a medium-long distance and unlimited height, and the hydraulic tensioning mode is adopted for a conveyor with limited height or a conveyor with a long distance.
Further, referring to fig. 4, a cross-sectional view of the present invention at the center idler of the offshore conveying system is shown. As shown in fig. 4, an upper aligning carrier roller set 75 and a lower aligning carrier roller set 76 are respectively arranged on the conveying device 20 every 30m to automatically correct the direction of the off-tracking belt, so as to avoid the problem of serious off-tracking of the belt caused by uneven left and right blanking of earthwork.
Further, in the conveying device 20, an automatic backstop is arranged at the top of the climbing slope of the belt conveyor, so that the belt is prevented from reversely running when the belt conveyor is suspended or power is insufficient.
Furthermore, in the conveying device 20, pinch rollers are additionally arranged on two sides of a belt of concave arc sections of a conveying path of the belt conveyor, and at least 3 groups of concave arc sections are arranged.
As a preferred embodiment of the sea-side earthwork transport system of the present invention, the discharging device 50 further includes:
a fixed table 51 and a tower 52 fixed adjacent to the quay 11, the fixed table 51 being close to the conveyor 20;
a fixed frame 53 horizontally fixed between the fixed table 51 and the tower 52, the fixed frame 53 being located at the bottom of the transfer device 20;
an adjustable frame 54 hinged to the fixed frame 53 and extending towards the direction of the earth-moving vessel 12, and a discharge hopper 57 arranged at the end of the adjustable frame 54;
the hoisting machine 55 is arranged on the fixed platform 51, a guy cable 56 is wound on the hoisting machine 55, the guy cable 56 is fixedly connected with the adjustable frame 54 after winding the top of the tower 53, and the hoisting machine 55 is used for controlling the guy cable 56 to adjust the pitch angle of the adjustable frame 54 so as to adjust the discharge hopper 57; and
a discharge belt mounted on the fixed frame 53 and the adjustable frame 54, and a discharge chute mounted on the discharge belt to realize movement.
In particular, the adjustable frame 54 extends beyond the middle of the earth-moving vessel 12 when in the horizontal position to ensure that the discharge hopper 57 will still be able to correspond above the earth-moving vessel 12 after subsequent adjustment of the pitch angle of the adjustable frame 54 to prevent it from falling out of the earth-moving vessel 12 during dumping.
Further, the discharge hopper 57 is provided with a blanking shield, so that the earthwork is limited by the blanking shield, and the splashing problem in the discharging process is prevented.
As a preferred embodiment of the sea-side earthwork conveying system, the invention also comprises a central control device, which comprises a central control console, and a weighing device, a deviation switch, an emergency brake switch and a tearing alarm which are communicated with the central control console and arranged on each part in the system; during construction, collected information is fed back to the center console through the weighing device, the deviation switch, the emergency brake switch and the tearing alarm, so that the conveying state of earthwork is recorded in real time and emergency situations are responded in time.
Specifically, weighing devices are installed at the ends of the screening device 30 and the discharging device 50, respectively, to collect engineering volume data of the feeding and loading earthwork.
Specifically, refer to fig. 5, which is a cross-sectional view of the off tracking switch of the sea-side earth transportation system of the present invention. Referring to fig. 5, the deviation switches 77 are installed on two sides of the conveyor belt in pairs, and are spaced from the conveyor belt by about 5cm, and a pair is respectively arranged at intervals of 20m between the head and the tail, and the deviation switches have an address coding function and feed back corresponding position information to the center console.
As a preferred embodiment of the sea-side earthwork transport system of the present invention, the system further comprises: a cleaning device provided in the transfer device 20; the cover is provided to the guard of the transfer device 20.
In particular, in the process of conveying earthwork by the belt conveyor, soil is easily attached to the belt, and if the earthwork is not cleaned in time, the attached earthwork is easily rolled into a machine part of the belt conveyor to cause machine damage. Therefore, a cleaning device needs to be provided on the belt conveyor to protect the machine.
Furthermore, two groups of polyurethane cleaners are installed at the head transmission roller of each section of belt conveyor, and an H-type polyurethane cleaner and a P-type polyurethane cleaner are respectively installed at the side part and the bottom part of the roller.
Further, a group of empty section cleaners 71 are installed on the return belt at the tail of each section of the belt conveyor and at the front of the tensioning device.
Further, a high-pressure clean water flushing device 72 is arranged below the return belt cleaned by the polyurethane cleaner for flushing, and an alloy cleaner is arranged at the rear part of the device for cleaning sewage attached to the belt. The atomized water spraying device is arranged around the feeding port in the screening device 30, so that dust is prevented from being raised.
Specifically, refer to fig. 6, which is a cross-sectional view of the rain cover of the offshore earthwork transportation system of the present invention. Referring to fig. 6, the protection device is an arch-shaped rain cover 73 arranged on the belt conveyor and fixed on the brackets at two sides of the belt conveyor. A closed blanking hopper 74 is provided at the belt conveyor staging junction. Not only can deal with external influences such as various weathers, avoid producing raise dust and mud polluted environment simultaneously, guarantee to use steadily at the in-process of belt transport earthwork.
Furthermore, when a road for driving or pedestrians is arranged beside the belt conveyor, a steel purse net is arranged for hard protection, so that the situation that the driving pedestrians get close is avoided.
The invention also provides a construction method using the coastal earthwork conveying system, which comprises the following steps:
pouring the excavated earthwork into a screening device 30 through a feeding port, screening by the screening device 30, and then falling into a material guide groove 40 through a screening port;
starting the conveying device 20 to move the material guide chute 40 to be close to the wharf, and pouring earthwork of the material guide chute into the discharging chute;
adjusting the pitch angle of the discharge hopper 57 to correspond to the earth-moving vessel 12; and
the earthwork in the discharge chute is dumped into the earth-moving vessel 12 through the discharge hopper 57.
As a preferred embodiment of the sea-side earthwork conveying system of the present invention, the system further includes a feeding table 60 for the vehicle to travel, and the feeding table 60 is erected above the sieving device 30, so that the edge of the feeding table 60 corresponds to the feeding port.
As a preferred embodiment of the sea-side earthwork transport system of the present invention, the discharging device 50 further includes: providing a fixed table 51 and a tower 52, fixing the fixed table 51 and the tower 52 adjacent to the wharf 11, wherein the fixed table 51 is close to the conveying device 20;
providing a fixed frame 53, horizontally fixing the fixed frame 53 between the fixed table 51 and the tower 52, and positioning the fixed frame at the bottom of the conveying device 20;
providing an adjustable frame 54, hinging the adjustable frame 54 to the fixed frame 53 and extending towards the direction of the earth-moving vessel 12;
providing a winch 55, installing the winch 55 on the fixed platform 51, winding a guy cable 56 on the winch 55, fixedly connecting the guy cable 56 with the adjustable frame 54 after winding the top of the tower 52, and controlling the guy cable 56 through the winch 55 to adjust the pitch angle of the adjustable frame 54; and
a discharge belt is provided, which is mounted to the fixed frame 53 and the adjustable frame 54, and the discharge chute is mounted to the discharge belt for movement.
As a preferred embodiment of the present invention, the system further comprises a cleaning device installed on the conveyor.
The following will specifically describe the steps of the construction method of the near-sea earthwork transportation system of the present invention:
in the earthwork outward transportation construction process of the coastal area, a proper site for the abandoned soil to go to the ship is determined according to the actual condition of the surrounding environment, and a nearby wharf is generally preferably selected.
Arranging an earthwork transfer station in an open field near an earthwork excavation site;
selecting a proper route and a proper route according to the space between the earth transit station and the adjacent wharf, arranging and installing a conveying device along the route, and jointly debugging and running;
transporting earthwork from an earthwork excavation site to a feeding platform positioned on a transit station by adopting a mud head passing vehicle;
dumping earthwork into the screening device through a mud truck or an excavator, and filtering and screening through the screening device; pouring the screened earthwork into a material guide groove of a conveying device;
the earthwork is directly transported to a discharging device close to the wharf through a material guide groove of the conveying device, and is poured into the earth-carrying ship through the discharging device;
the earth-moving ship leaves after full load, and the operating belt conveyor is closed; and starting the operation belt conveyor after the next earth-moving ship drives in.
Furthermore, conveyor subsections are arranged at the turning position of the route stroke and the middle part of the long-distance linear line, so that the route of a single-section conveyor is ensured not to exceed 3 km.
Furthermore, when the turning radius of the route is smaller than 2000m, the middle part of the arc-shaped route is provided with a conveyor segment, and the turning radius of each segment of the conveyor route is kept smaller than 2000 m.
Furthermore, when the conveyor spans pipelines, channels and other building structures, the conveyor should be protected, and after the overhead truss is arranged on the conveyor for protection, the belt conveyor is arranged on the overhead truss.
Furthermore, the belt conveyor is installed along the longitudinal slope of the line, the maximum climbing angle of the conveyor needs to be determined according to the properties of the belt and the soil quality (internal friction angle and cohesive force), the maximum climbing angle is not larger than 13 degrees, and if the longitudinal slope is too large, an anti-skid pattern belt can be used as the conveyor belt.
Furthermore, the address coding component of each system of the belt conveyor monitors real-time data and makes emergency response through a central control system.
Furthermore, the angle of the discharge hopper 57 can be adjusted by adjusting the pitch angle of the adjustable frame 54 of the pitch belt conveyor, and the loading capacity of the earth-moving vessel 12 can be optimized by combining the forward and backward movement adjustment of the position of the earth-moving vessel 12.
The effect of layered loading is achieved by moving the earth-moving vessel in the loading process, and the phenomenon that the hull overturns due to centralized loading is avoided.
The sea-facing earthwork conveying system and the construction method thereof have the beneficial effects that:
according to the invention, the conveying device is fixed between the transfer station and the adjacent wharf, earthwork is firstly poured into the screening device for screening, then is conveyed to the adjacent wharf through the conveying device, and is poured into the earth-carrying ship through the discharging device arranged on the adjacent wharf. The discharging device comprises a discharging hopper which is positioned above the earth-moving vessel and has an adjustable pitching angle, and the pitching angle of the discharging hopper is adjusted to be adapted to the position of the earth-moving vessel, so that the discharging device is convenient to dump.
While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.
Claims (10)
1. A sea-facing earthwork transport system for transporting excavated earthwork from a transfer site to an earthwork ship adjacent to a dock, the transport system comprising:
a transfer device fixed between the transfer station and the adjacent wharf;
the screening device is fixed on the transfer station and used for screening materials, and comprises a feeding port and a screening port which are arranged above the conveying device;
the guide chute is used for accommodating earthwork falling from the screening device and is arranged on the conveying device so as to move through the conveying device; and
the discharging device is fixed on the wharf and located below the conveying device, and comprises a discharging groove and a discharging hopper, wherein the discharging groove is used for containing earthwork falling from the guide chute, and the discharging hopper is located above the earth-moving ship and adjustable in pitching angle.
2. The coastal earthwork transport system of claim 1,
the vehicle-mounted screening device is characterized by further comprising a feeding platform which is erected above the screening device and used for a vehicle to run, and the edge of the feeding platform corresponds to the feeding port.
3. The coastal earthwork transport system of claim 1,
the conveying device comprises a plurality of sections of belt conveyors connected with each other;
and gradually ascending and climbing the multi-section belt conveyor from the transfer station to the direction close to the wharf.
4. The coastal earthwork transport system of claim 1 wherein the screening device comprises:
the eccentric vibrating screen is arranged between the feeding port and the screening port;
an iron attracting device for attracting iron pieces mixed in the earth.
5. The coastal earthwork transport system of claim 1 wherein the discharge apparatus further comprises:
a fixed platform and a tower fixed to the adjacent wharf, wherein the fixed platform is close to the conveying device;
the fixing frame is horizontally fixed between the fixing table and the tower and is positioned at the bottom of the conveying device;
the adjustable frame is hinged to the fixed frame and extends towards the direction of the earth-moving ship, and the discharge hopper is arranged at the end part of the adjustable frame;
the winch is arranged on the fixed platform, a guy cable is wound on the winch, the guy cable is fixedly connected with the adjustable frame after bypassing the top of the tower frame, and the guy cable is controlled by the winch to adjust the pitching angle of the adjustable frame, so that the discharge hopper is adjusted; and
the discharging transmission belt is arranged on the fixed frame and the adjustable frame, and the discharging groove is arranged on the discharging transmission belt to realize movement.
6. The coastal earthwork transport system of claim 1 further comprising:
the cleaning device is arranged on the conveying device;
the cover is arranged on the protective device of the conveying device.
7. A method of construction using the offshore earthwork transfer system of claim 1 comprising the steps of:
pouring the excavated earthwork into a screening device through a feeding hole, and falling into the material guide groove through the screening hole after being screened by the screening device;
starting a conveying device to move the material guide groove to the adjacent wharf, and pouring earthwork of the material guide groove into the discharge chute;
adjusting a pitch angle of the discharge hopper to correspond to the earth-moving vessel; and
and dumping the earthwork in the discharge chute into the earth-moving ship through the discharge hopper.
8. The method of constructing a sea-facing earthwork transfer system of claim 7,
the material screening device is characterized by further comprising a material loading platform for a vehicle to run, wherein the material loading platform is arranged above the material screening device, so that the edge of the material loading platform corresponds to the material loading port.
9. The method of constructing a sea-facing earthwork transport system of claim 7 wherein the discharging device further comprises:
providing a fixed platform and a tower, fixing the fixed platform and the tower to the adjacent wharf, wherein the fixed platform is close to the conveying device;
providing a fixed frame, horizontally fixing the fixed frame between the fixed table and the tower, wherein the fixed frame is positioned at the bottom of the conveying device;
providing an adjustable frame, hinging the adjustable frame to the fixed frame and extending towards the direction of the earth-moving ship;
providing a winch, installing the winch on the fixed platform, winding a guy cable on the winch, fixedly connecting the guy cable with the adjustable frame after the guy cable is wound around the top of the tower frame, and controlling the guy cable through the winch to adjust the pitching angle of the adjustable frame; and
and providing a discharging transmission belt, installing the discharging transmission belt on the fixed frame and the adjustable frame, and installing the discharging groove on the discharging transmission belt to realize movement.
10. The method of constructing a coastal earthwork transport system of claim 7 further comprising providing a cleaning device mounted to the conveyor.
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