CN113389233B - River channel dredging equipment - Google Patents

River channel dredging equipment Download PDF

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Publication number
CN113389233B
CN113389233B CN202110839258.0A CN202110839258A CN113389233B CN 113389233 B CN113389233 B CN 113389233B CN 202110839258 A CN202110839258 A CN 202110839258A CN 113389233 B CN113389233 B CN 113389233B
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sludge
water
silt
dry
tank
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CN113389233A (en
Inventor
丁柏根
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Shaoxing Baili Construction Co ltd
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Shaoxing Baili Construction Co ltd
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/8816Mobile land installations
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/902Component parts, e.g. arrangement or adaptation of pumps for modifying the concentration of the dredged material, e.g. relief valves preventing the clogging of the suction pipe
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/907Measuring or control devices, e.g. control units, detection means or sensors
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/92Digging elements, e.g. suction heads
    • E02F3/9256Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head
    • E02F3/9262Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head with jets

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Treatment Of Sludge (AREA)

Abstract

The invention discloses a river channel dredging device which comprises a rack, wherein a mud pump is arranged on the rack, a water gun, a water tank, a sludge dewatering mechanism capable of continuously dewatering, a dry sludge tank and a dry sludge conveying mechanism are also arranged on the rack, a water pump connected with the water gun is arranged in the water tank, a sludge inlet, a water outlet and a sludge discharge port are arranged on the sludge dewatering mechanism, a sludge outlet of the mud pump is connected with the sludge inlet, the water outlet is connected with the water tank through a flow detection device, sludge discharged from the sludge discharge port falls into the dry sludge tank, the dry sludge conveying mechanism is connected with the dry sludge tank, an electromagnetic flow regulating valve is arranged on a pipeline connecting the water gun or the water gun and the water pump, and the flow detection device is connected with the electromagnetic flow regulating valve. The river channel dredging equipment can control reasonable water content when sludge is sucked, can prevent a slurry pump from being blocked, and can reduce the suction amount, so that the operation efficiency is improved, the water in the sludge is squeezed out for cyclic utilization, the water consumption is reduced, and the transportation cost is reduced.

Description

River channel dredging equipment
Technical Field
The invention belongs to the technical field of river channel dredging equipment, and particularly relates to river channel dredging equipment which is used for cleaning sludge in a river channel.
Background
The river channel and the like are frequently dug in the hydraulic engineering construction, sludge treatment in the river channel is an important work, the sludge can be effectively treated, the water quality can be better guaranteed, substances polluting the environment can be better reduced, a better living environment is provided, most harmful substances polluting the water quality are in the sludge, and therefore the sludge in the river channel needs to be regularly cleaned.
The prior art dredging equipment generally comprises grab bucket type dredging, pump suction type dredging and cutter suction type dredging.
The grab bucket type dredging is suitable for excavating medium and small river channels with large thickness of mud layers and a plurality of obstacles in construction areas, and is used for dredging engineering for enlarging flood-running sections of the river channels. The grab dredger is flexible and mobile, is not influenced by obstacles such as garbage, stones and the like in a river channel, is suitable for excavating harder earthwork or earthwork carrying more impurity garbage, and has the advantages of simple construction process, easy equipment organization, less engineering investment and no influence of weather in the construction process. However, the grab dredger has poor sensitivity to extremely soft bottom mud, and is easy to generate the condition of digging harder stratum earthwork at the lower part of the excavated riverbed in the excavation process, thereby leaking a large amount of surface layer bottom mud, particularly floating mud, and easily causing the surface layer floating mud to return to the water body again after being stirred. According to engineering experience, the sludge removal rate of the grab type dredging can only reach about 30%, and in addition, the grab type dredging is easy to generate floating sludge omission and strongly disturb bottom sludge, so that the original purpose can not be achieved in the dredging engineering which aims at improving water quality.
The equipment for pump suction type dredging is relatively simple, can be equipped with small and medium ships and equipment, and is suitable for entering small and medium river channel construction. In general, a large amount of river water is easy to be sucked out, so that the subsequent slurry treatment workload is increased. Meanwhile, the garbage in the river channel in China has complex components and different sizes, and the condition that the sludge suction port is blocked is easily caused.
The common cutter suction type dredging is suitable for dredging medium and large river channels with thick mud layers. The common cutter suction type dredging is a dredging, transporting and blowing integrated construction process, mud is transported by adopting a fully-closed pipeline, mud is not scattered or leaked, the navigation of a river channel is not influenced in the dredging process, the construction is not influenced by weather, and meanwhile, the construction control is carried out by adopting a GPS and an echo detector, so that the construction precision can be improved. The ordinary cutter suction type dredging is easy to cause the diffusion of pollutants in bottom mud due to the open excavation by adopting a spiral slicing reamer, and the phenomenon of serious back dredging can also occur. The clearance rate of the bottom mud is about 70 percent generally. In addition, the concentration of the blown sludge slurry is low, so that the volume of the slurry is increased, and the occupied area of a sludge storage yard is increased.
These dredging methods have an advantage in that they can be performed without draining the river water, but have a problem in that the water content in the sludge is large, resulting in a significant increase in the cost of transporting the sludge.
Under the condition of pumping out river water, due to different water content of sludge, the existing pump suction type dredging device generally needs to manually flush the sludge through a high-pressure water gun when in use, then a slurry pump pumps away a mixture of the sludge and water sprayed from the high-pressure water gun, and the excessive water content of the sludge can reduce the sludge pumping efficiency and can cause the obvious increase of transportation cost and the consumption of a large amount of water; and the mud pump can be blocked by the mud if the water content of the mud is too low, the existing pump suction type dredging equipment has no structure for controlling the water content of the mud, and the water content of the mud is too high under most conditions.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the river channel dredging equipment which is used for pumping the river bottom dredging of river water, can control the water yield of the high-pressure water gun according to the water content of the river bottom sludge, can control reasonable water content when the sludge is pumped, can prevent a mud pump from being blocked, can reduce the pumping amount, further improves the operation efficiency, extrudes the water in the sludge for cyclic utilization, reduces the water consumption and reduces the transportation cost.
In order to solve the technical problem, the invention is solved by the following technical scheme: the utility model provides a river course desilting equipment, includes the frame, be provided with the slush pump in the frame, still be provided with silt water trap mechanism, dry silt case and the dry silt conveying mechanism of squirt, water tank, the water pump of squirt of connection in the water tank, be provided with into silt mouth, outlet and row silt mouth in the silt water trap mechanism, the silt exit linkage of slush pump advance the silt mouth, the outlet is connected through flow detection device the water tank, the silt of row's silt mouth exhaust falls into dry silt case, dry silt conveying mechanism connects dry silt case, the squirt or be provided with electromagnetic flow control valve on the pipeline that squirt and water pump are connected, flow detection device with electromagnetic flow control valve connection control device. This kind of river course desilting equipment passes through the squirt silt for the silt landing makes the slush pump better pump the silt with mixing into water in the silt, and the slush pump pumps the silt and enters into silt water removal mechanism, and silt water removal mechanism will silt dewatering and will do the silt and carry and do the silt incasement, will do the silt by doing silt conveying mechanism and carry on the carrier of bank. The water content of the dry sludge passing through the sludge dewatering mechanism can be detected by the flow detection device, the water content of the dry sludge is basically consistent, and the flow of the sludge pump in working is also kept stable, so that the water content of the sludge pumped by the sludge can be judged by the flow detected by the flow detection device, the water spray quantity of the water gun is adjusted by controlling the electromagnetic flow regulating valve by the control device, the water content of the sludge sucked is controlled, when the flow detected by the flow detection device is too low, the water spray quantity of the water gun is increased by the electromagnetic flow regulating valve, when the flow detected by the flow detection device is too high, the water spray quantity of the water gun is reduced by the electromagnetic flow regulating valve, the water content of the sludge sucked into the sludge pump is kept in a proper range, the sludge pump can be prevented from being blocked, the pumping quantity can be reduced, and the working efficiency is improved, and the water in the extruded sludge is recycled, so that the water consumption is reduced, and the transportation cost is reduced.
Among the above-mentioned technical scheme, it is preferred, be provided with in the frame by motor drive's first seat of rotating, be provided with on the first seat of rotating the squirt, first seat of rotating reciprocating rotation is so that squirt spun water column reciprocating motion. The structure can enlarge the spraying range of the water gun.
In the above technical scheme, preferably, the dry sludge conveying mechanism includes a circulating pipeline, an end-to-end chain is arranged in the circulating pipeline, material pushing plates are arranged on the chain at intervals, a driving device used for driving the chain to rotate is arranged on the circulating pipeline, a feed inlet and a discharge outlet are respectively arranged on two opposite sides of the circulating pipeline, the circulating pipeline with the feed inlet side penetrates through the dry sludge box, and the feed inlet is located in the dry sludge box. By adopting the structure, the chain can be driven to rotate by the driving device, and dry sludge in the dry sludge box is conveyed to the discharge hole for blanking by the material pushing plate.
In the above technical solution, preferably, the frame is provided with a second rotating base driven by a motor, the second rotating base is provided with the dry sludge box, and the second rotating base rotates to change the position of the discharge port. Adopt this structure can change the position of discharge gate through the rotation of second rotation seat, be suitable for the carrier of bank to catch dry silt.
In the above technical solution, preferably, the circulation pipeline is rotatably connected to the dry sludge tank, a linear driving device for changing an angle of the circulation pipeline is disposed between the circulation pipeline and the second rotating base, and the linear driving device extends and retracts to change a horizontal distance between the discharge port and the dry sludge tank. By adopting the structure, the horizontal distance between the discharge port and the dry sludge box can be changed by the extension and retraction of the linear driving device, and the carrier suitable for the shore can catch the dry sludge.
In the above technical solution, preferably, the frame is disposed on the crawler type traveling mechanism. The whole dredging equipment can move at the bottom of the river through the crawler-type travelling mechanism.
Among the above-mentioned technical scheme, it is preferred, silt dewatering mechanism includes the support frame, has the casing of extrusion chamber and catchment chamber and by motor drive's first pivot, wear to be equipped with in the extrusion chamber first pivot, be provided with crowded material spiral plate in the first pivot, extrusion chamber both ends are provided with into silt mouth and row silt mouth respectively, it inclines to arrange the silt mouth slide on the first pivot and be provided with crowded flitch, crowded flitch with be provided with between the support frame with crowded flitch is pushed to arrange the spring of silt mouth, it is provided with a plurality of apopores to extrude the chamber bottom, the apopore below is provided with catchment chamber, it is equipped with to catchment chamber bottom the outlet, the outlet pass through the pipeline with the water tank links to each other and is provided with on this pipeline flow detection device. This kind of silt dewatering mechanism can rotate and continuous extrusion water through the first pivot of motor drive for flow detection device can be real-time continuous survey the water yield of extruding in the silt, intermittent type can not appear.
In the above technical scheme, preferably, a filter cloth is arranged at the joint of the squeezing cavity and the water collecting cavity. Solid particles in the sludge can be prevented or reduced from entering the water collecting cavity by arranging the filter cloth, and the filtering effect is improved.
In the above technical scheme, preferably, a plurality of limiting rods are arranged in the extrusion cavity, and the limiting rods abut against the filter cloth to be attached to one side of the water outlet hole. By adopting the structure, the filter cloth can be prevented from being rolled by the extrusion spiral plate.
In the above technical solution, preferably, the dry sludge conveying mechanism includes a circulating pipeline, a chain connected end to end is arranged in the circulating pipeline, material pushing plates are arranged at intervals on the chain, a driving device for driving the chain to rotate is arranged on the circulating pipeline, a feeding port and a discharging port are respectively arranged on two opposite sides of the circulating pipeline, the circulating pipeline with one side of the feeding port penetrates through the dry sludge box, the feeding port is located in the dry sludge box, a second rotating seat driven by a motor is arranged on the machine frame, the dry sludge box is arranged on the second rotating seat, the second rotating seat rotates to change the position of the discharging port, the circulating pipeline is rotatably connected with the dry sludge box, and a linear driving device for changing the angle of the circulating pipeline is arranged between the circulating pipeline and the second rotating seat, the linear driving device stretches out and draws back to change the discharge gate with the horizontal distance of doing the silt case, silt dewatering mechanism both ends all are provided with the support frame, are close to the support frame bottom of row's silt mouth is provided with the arc wall, the opening edge of doing the silt case inserts in the arc wall. Adopt this structure can enough change the position of discharge gate through the rotation of second rotation seat, can change again through the line drive device is flexible the discharge gate with do the horizontal distance of silt case, be suitable for the carrier on bank and catch dry silt to do silt conveying mechanism and do the silt case can not appear disturbing between the pivoted in-process and silt dewatering mechanism.
Compared with the prior art, the invention has the following beneficial effects: this kind of river course desilting equipment passes through the squirt silt for the silt landing makes the slush pump better pump the silt with mixing into water in the silt, and the slush pump pumps the silt and enters into silt water removal mechanism, and silt water removal mechanism will silt dewatering and will do the silt and carry and do the silt incasement, will do the silt by doing silt conveying mechanism and carry on the carrier of bank. The water content of the dry sludge passing through the sludge dewatering mechanism can be detected by the flow detection device, the water content of the dry sludge is basically consistent, and the flow of the slurry pump in working is also kept stable, so that the water content of the sludge pumped by the slurry pump can be judged by the flow detected by the flow detection device, the water spray amount of the water gun is adjusted by controlling the electromagnetic flow adjusting valve by the control device, the water content of the sludge sucked is controlled, when the flow detected by the flow detection device is too low, the water spray amount of the water gun is increased by the electromagnetic flow adjusting valve, when the flow detected by the flow detection device is too high, the water spray amount of the water gun is reduced by the electromagnetic flow adjusting valve, the water content of the sludge sucked into the slurry pump is kept in a proper range, the slurry pump can be prevented from being blocked, the suction amount can be reduced, and the working efficiency is improved, and the water in the extruded sludge is recycled, so that the water consumption is reduced, and the transportation cost is reduced.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.
Fig. 2 is a schematic view of a partial sectional structure of a sludge dewatering mechanism according to an embodiment of the present invention.
Fig. 3 is a schematic cross-sectional structure diagram of a sludge dewatering mechanism in an embodiment of the invention.
FIG. 4 is a schematic view of the connection structure of the dry sludge tank and the dry sludge conveying mechanism in the embodiment of the invention.
Detailed Description
The invention is described in further detail below with reference to the following detailed description and accompanying drawings: referring to fig. 1 to 4, a river dredging device comprises a frame 1, a mud pump 2 is arranged on the frame 1, a water gun 3, a water tank 4 and a sludge dewatering mechanism 5 capable of continuously dewatering are also arranged on the frame 1, dry silt case 6 and dry silt conveying mechanism 7, be provided with the water pump (not drawn on the picture) of connecting squirt 3 in the water tank 4, be provided with into silt mouth 523 on the silt dewatering mechanism 5, outlet 524 and row silt mouth 525, silt exit linkage into silt mouth 523 of slush pump 2, outlet 524 connects water tank 4 through flow detection device 8, the silt of row silt mouth 525 discharge falls into dry silt case 6, dry silt conveying mechanism 7 connects dry silt case 6, be provided with electromagnetic flow control valve 9 on the pipeline that squirt 3 or squirt 3 and water pump are connected, flow detection device 8 and electromagnetic flow control valve 9 connection controlling means (not drawn on the picture). The river dredging equipment sprays sludge through the water gun 3, so that the sludge slides down and is mixed with water in the sludge to enable the sludge pump 2 to better pump the sludge, the sludge pump 2 pumps the sludge to enter the sludge dewatering mechanism 5, the sludge dewatering mechanism 5 dewaters the sludge and conveys the dried sludge to the dried sludge tank 6, and the dried sludge is conveyed to a shoreside carrier through the sludge conveyor 5. The water content of the dry sludge passing through the sludge dewatering mechanism 5 can be detected by the flow detection device 8, the water content of the dry sludge is basically consistent, and the flow of the sludge pump 2 is kept stable in operation, so that the water content of the sludge sucked by the sludge pump 2 can be judged by the flow detected by the flow detection device 8, the water spray amount of the water gun 3 is adjusted by controlling the electromagnetic flow adjusting valve 9 by the control device, the water content of the sludge is controlled, when the flow detected by the flow detection device 8 is too low, the water spray amount of the water gun is increased by the electromagnetic flow adjusting valve 9, when the flow detected by the flow detection device 8 is too high, the water spray amount of the water gun is reduced by the electromagnetic flow adjusting valve 9, the water content of the sludge sucked into the sludge pump 2 is kept in a proper range, and the blockage of the sludge pump 2 can be prevented, and the pumping amount can be reduced, so that the operation efficiency is improved, the water in the extruded sludge is recycled, the water consumption is reduced, and the transportation cost is reduced.
In the present embodiment, the flow rate detection device 8 may be a flow rate sensor having any structure as long as it can transmit flow rate information to the control device.
In this embodiment, a first rotating seat 31 driven by a motor is disposed on the frame 1, the water gun 3 is disposed on the first rotating seat 31, and the first rotating seat 31 rotates reciprocally to enable a water column sprayed by the water gun 3 to move reciprocally. Adopt this structure can enlarge squirt 3's spray regime, at first rotation seat 31 reciprocating motion's in-process, squirt 3's water column can spray fan-shaped scope.
In this embodiment, the dry sludge conveying mechanism 7 includes a circulating pipe 71, an end-to-end chain 72 is disposed in the circulating pipe 71, a material pushing plate 73 is disposed at an interval on the chain 72, a driving device 74 for driving the chain 72 to rotate is disposed on the circulating pipe 71, the driving device 74 mainly includes a motor and a chain wheel driven by the motor, the chain wheel is matched with the chain 72, when the motor drives the chain wheel to rotate, the chain 72 is driven to rotate along one direction, a feeding hole 711 and a discharging hole 712 are disposed on two opposite sides of the circulating pipe 71, the circulating pipe 71 having one side of the feeding hole 711 penetrates through the dry sludge box 6, and the feeding hole 711 is located in the dry sludge box 6. With this structure, the chain 72 can be driven by the driving device 74 to rotate, and the dry sludge in the dry sludge tank 6 is conveyed to the discharge port 712 for blanking by the material pushing plate 73.
In this embodiment, the frame 1 is provided with a second rotary base 61 driven by a motor, the second rotary base 61 is provided with a dry sludge tank 6, and the second rotary base 61 rotates to change the position of the discharge port 712. With this structure, the position of the discharge port 712 can be changed by the rotation of the second rotary base 61, and the carrier suitable for the shore catches the dry sludge.
In this embodiment, the circulation pipe 71 is rotatably connected to the dry sludge tank 6, a linear driving device 75 for changing the angle of the circulation pipe 71 is disposed between the circulation pipe 71 and the second rotating base 61, and the linear driving device 75 extends and retracts to change the horizontal distance between the discharge port 712 and the dry sludge tank 6. By adopting the structure, the horizontal distance between the discharge port 712 and the dry sludge tank 6 can be changed by the extension and contraction of the linear driving device 75, the carrier suitable for the shore can catch the dry sludge, and the linear driving device 75 can adopt an electric push rod, a hydraulic cylinder or an air cylinder.
In this embodiment, the frame 1 is provided on the crawler travel mechanism 10. Locate frame 1 and can remove by whole frame 1 of crawler-type running gear 10 control on crawler-type running gear 10 for whole desilting equipment can remove at the bottom of a river, can remove each position as required, convenient desilting.
In this embodiment, the sludge dewatering mechanism 5 includes a support frame 51, the sludge dredging device comprises a shell 52 provided with an extrusion cavity 521 and a water collecting cavity 522 and a first rotating shaft 53 driven by a motor, wherein the first rotating shaft 53 penetrates through the extrusion cavity 521, an extrusion spiral plate 54 is arranged on the first rotating shaft 53, a sludge inlet 523 and a sludge discharge 525 are respectively arranged at two ends of the extrusion cavity 521, an extrusion plate 55 is arranged on the first rotating shaft 53 at the side of the sludge discharge 525 in a sliding manner, a spring 56 for pushing the extrusion plate 55 to the sludge discharge 525 is arranged between the extrusion plate 55 and a support frame 51, a plurality of water outlet holes 526 are arranged at the bottom of the extrusion cavity 521, the water collecting cavity 522 is arranged below the water outlet holes 526, a water outlet 524 is arranged at the bottom of the water collecting cavity 522, the water outlet 524 is connected with a water tank 4 through a pipeline, a flow detection device 8 is arranged on the pipeline, the bottom of the water collecting cavity 522 inclines towards one side, and the water outlet 524 is arranged at the lowest part of the water collecting cavity 522. The sludge dewatering mechanism 5 can drive the first rotating shaft 53 to rotate by a motor, and during the rotation of the first rotating shaft 53, the extrusion spiral plate 54 drives the sludge to move from the sludge inlet 523 to the sludge discharge 525, the sludge will push the extrusion plate 55, in the pushing process, part of the water in the sludge is extruded and falls into the water collecting cavity 522 through the water outlet hole 526, the water in the water collecting cavity 522 naturally falls due to gravity and flows through the flow detection device 8 to detect the flow, the more the extruded water is, the larger the flow detected by the flow detection device 8 is, the less the extruded water is, the smaller the flow detected by the flow detection device 8 is, the extruded dry sludge falls from the gap between the sludge discharge port 525 and the material extruding plate 55, the sludge dewatering mechanism 5 can continuously extrude water, so that the flow detection device 8 can continuously measure the extruded water quantity in the sludge in real time, and no intermittence occurs.
In this embodiment, in order to improve the filtering effect and prevent or reduce solid particles in sludge from entering the water collecting cavity 522, the connection between the extrusion cavity 521 and the water collecting cavity 522 is provided with the filter cloth 57, in order to prevent the filter cloth 57 from being involved by the extrusion spiral plate 54, the extrusion cavity 521 is internally provided with a plurality of limiting rods 58, and the limiting rods 58 abut against the filter cloth 57 and are attached to one side of the water outlet hole 526.
Since solid particles in the sludge gradually permeate into one side of the filter cloth 57 close to the squeezing cavity 521 during the filtering process, the circulation efficiency of the filter cloth 57 is reduced due to long-term use, so that water squeezed out of the sludge cannot quickly fall into the water collecting cavity 522, which not only affects the recovery of water in the sludge, but also affects the detection of the flow detection device 8. In order to solve the technical problem, two filter cloth channels 527 are axially arranged on two sides of the extrusion cavity 521 within the range of the water outlet holes 526, the filter cloth 57 penetrates through the two filter cloth channels 527 to be connected end to end, a plurality of annular raised guide strips 571 are arranged along the periphery of the filter cloth 57, notches matched with the guide strips 571 are arranged on the filter cloth channels 527, and the filter cloth 57 can be prevented from moving laterally through the matching of the guide strips 571 and the notches. The guide strips 571 are made of elastic materials, the range of the water outlet hole 526 at the bottom of the squeezing cavity 521 is covered by the filter cloth 57, a second rotating shaft 528 driven by a motor axially penetrates through the water collecting cavity 522, a plurality of rollers 529 are arranged on the second rotating shaft 528, the rollers 529 are attached to the guide strips 531 or the filter cloth 57, when the motor drives the second rotating shaft 528 to rotate, the filter cloth 57 can be driven by the rollers 529 to rotate, so that the filter cloth 57 which originally faces the squeezing cavity 521 and is accordingly rotated to the lower side of the squeezing cavity 521, one side of solid particles originally permeating into sludge can be washed reversely by water squeezed out of the sludge, the service life of the filter cloth 57 can be effectively prolonged, the filter cloth 57 can be used for a longer time, and the circulation efficiency of the filter cloth 57 can not be affected.
The 5 both ends of silt dewatering mechanism all are provided with support frame 51, the support frame 51 bottom that is close to row silt mouth 525 is provided with arc wall 511, dry in the opening edge of silt case 6 inserts arc wall 511, in this embodiment, the bottom of this support frame 51 is equipped with a detachable curb plate, the curb plate forms this arc wall 511 when installing on support frame 51, the both sides of the opening position of doing silt case 6 still are equipped with the bellying, arc wall 511 both sides are equipped with the recess that matches with this bellying, when the support frame 51 bottom is amalgamated to the curb plate, the bellying stretches into in the recess and carries on spacingly to support frame 51 upper and lower position. Since the second rotary base 61 needs to be rotated to change the position of the discharge port 712 and the linear driving device 75 needs to be extended and contracted to change the horizontal distance between the discharge port 712 and the dry sludge tank 6, the carrier suitable for the shore can catch the dry sludge, and the above structure can prevent the dry sludge conveying mechanism 7 and the dry sludge tank 6 from interfering with the sludge dewatering mechanism 5 during the rotation.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.

Claims (10)

1. The utility model provides a river course desilting equipment, includes frame (1), be provided with slush pump (2) in frame (1), its characterized in that: the sludge dewatering device is characterized in that a water gun (3), a water tank (4), a sludge dewatering mechanism (5) capable of continuously dewatering, a dry sludge tank (6) and a dry sludge conveying mechanism (7) are further arranged on the rack (1), a water pump connected with the water gun (3) is arranged in the water tank (4), a sludge inlet (523), a water outlet (524) and a sludge discharge port (525) are arranged on the sludge dewatering mechanism (5), a sludge outlet of the slurry pump (2) is connected with the sludge inlet (523), the water outlet (524) is connected with the water tank (4) through a flow detection device (8), sludge discharged from the sludge discharge port (525) falls into the dry sludge tank (6), the dry sludge conveying mechanism (7) is connected with the dry sludge tank (6), and an electromagnetic flow regulating valve (9) is arranged on the water gun (3) or a pipeline connected with the water pump, the flow detection device (8) is connected with the electromagnetic flow control valve (9) to control the device, the water content of the sludge pumped by the slurry pump is judged according to the flow detected by the flow detection device (8), and the water spray amount of the water gun (3) is adjusted by controlling the electromagnetic flow control valve (9) through the control device.
2. A river dredging apparatus according to claim 1, wherein: be provided with in frame (1) by motor drive's first seat of rotating (31), be provided with on first seat of rotating (31) squirt (3), first seat of rotating (31) reciprocating rotation is so that squirt (3) spun water column reciprocating motion.
3. A river dredging apparatus as claimed in claim 1, wherein: do silt conveying mechanism (7) including circulating line (71), be provided with end to end's chain (72) in circulating line (71), the interval is provided with scraping wings (73) on chain (72), be provided with on circulating line (71) and be used for the drive chain (72) pivoted drive arrangement (74), the both sides that circulating line (71) is relative are provided with feed inlet (711) and discharge gate (712) respectively, have feed inlet (711) one side circulating line (71) pass do silt case (6), feed inlet (711) are located do in silt case (6).
4. A river dredging apparatus according to claim 3, wherein: the machine frame (1) is provided with a second rotating seat (61) driven by a motor, the second rotating seat (61) is provided with the dry sludge box (6), and the second rotating seat (61) rotates to change the position of the discharge hole (712).
5. The river channel dredging apparatus according to claim 4, wherein: the circulating pipeline (71) is rotationally connected with the dry sludge box (6), a linear driving device (75) used for changing the angle of the circulating pipeline (71) is arranged between the circulating pipeline (71) and the second rotating seat (61), and the linear driving device (75) stretches and retracts to change the horizontal distance between the discharge hole (712) and the dry sludge box (6).
6. A river dredging apparatus as claimed in claim 1, wherein: the frame (1) is arranged on the crawler-type travelling mechanism (10).
7. A river dredging apparatus according to claim 1, wherein: the sludge dewatering mechanism (5) comprises a support frame (51), a shell (52) with an extrusion cavity (521) and a water collecting cavity (522) and a first rotating shaft (53) driven by a motor, the first rotating shaft (53) penetrates through the extrusion cavity (521), an extrusion spiral plate (54) is arranged on the first rotating shaft (53), a sludge inlet (523) and a sludge discharge opening (525) are respectively arranged at two ends of the extrusion cavity (521), an extrusion plate (55) is arranged on the first rotating shaft (53) at the sludge discharge opening (525) side in a sliding manner, a spring (56) for pushing the extrusion plate (55) to the sludge discharge opening (525) is arranged between the extrusion plate (55) and the support frame (51), a plurality of 526) are arranged at the bottom of the extrusion cavity (521), the water collecting cavity (522) is arranged below the water outlet (526), the bottom of the water collecting cavity (522) is provided with the water outlet (524), the water outlet (524) is connected with the water tank (4) through a pipeline, and the pipeline is provided with the flow detection device (8).
8. A channel dredging apparatus as claimed in claim 7, wherein: and a filter cloth (57) is arranged at the joint of the extrusion cavity (521) and the water collecting cavity (522).
9. A river dredging apparatus as claimed in claim 8, wherein: be provided with a plurality of gag lever posts (58) in extrusion chamber (521), gag lever post (58) support filter cloth (57) is in with its laminating apopore (526) one side.
10. A channel dredging apparatus as claimed in claim 7, wherein: the dry sludge conveying mechanism (7) comprises a circulating pipeline (71), an end-to-end chain (72) is arranged in the circulating pipeline (71), material pushing plates (73) are arranged on the chain (72) at intervals, a driving device (74) used for driving the chain (72) to rotate is arranged on the circulating pipeline (71), a feeding hole (711) and a discharging hole (712) are respectively arranged on two opposite sides of the circulating pipeline (71), the circulating pipeline (71) with one side of the feeding hole (711) penetrates through the dry sludge box (6), the feeding hole (711) is located in the dry sludge box (6), a second rotating seat (61) driven by a motor is arranged on the rack (1), the dry sludge box (6) is arranged on the second rotating seat (61), and the second rotating seat (61) rotates to change the position of the discharging hole (712), circulating line (71) with do silt case (6) and rotate the connection, circulating line (71) with the second rotates and is provided with between seat (61) and is used for changing linear drive arrangement (75) of circulating line (71) angle, linear drive arrangement (75) stretch out and draw back in order to change discharge gate (712) with the horizontal distance of doing silt case (6), silt dewatering mechanism (5) both ends all are provided with support frame (51), are close to support frame (51) bottom of row silt mouth (525) is provided with arc wall (511), the opening edge of doing silt case (6) inserts in arc wall (511).
CN202110839258.0A 2021-07-23 2021-07-23 River channel dredging equipment Active CN113389233B (en)

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KR200163714Y1 (en) * 1999-07-07 2000-02-15 이동헌 Sludge dredge apparatus
CN107012901B (en) * 2016-01-28 2019-05-10 宋文华 Dredging managing and control system
CN207144031U (en) * 2017-09-15 2018-03-27 贾子建 A kind of hydraulic engineering high-efficient dredging device
CN112796342B (en) * 2020-12-15 2022-03-29 张强 Method and equipment for dredging and land-building river and lake sediment

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Denomination of invention: A river dredging equipment

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