A dredging device for water conservancy projects in river channels

Abstract

The present invention relates to the technical field of river dredging devices, and specifically discloses a water conservancy project dredging device for river channels, which includes a mobile platform. There is a drainage trough on the upper side of the mobile platform, and an installation plate is arranged on the side of the drainage trough. A number of silt discharge interfaces are fixed on the side of the installation plate, and filter bags are provided in a matching manner for the silt discharge interfaces. There is a pressing mechanism on the upper side of the drainage trough that matches a number of filter bags, and a filter bag placement mechanism that matches a number of filter bags is arranged on the side of the mobile platform. A silt suction mechanism and a flocculant delivery component are arranged in a matching manner for the silt discharge interfaces, and a silt pump suction component that matches the docking pipe is provided for the mobile platform. The present invention can transport the silt into the filter bags for collection, can achieve convenient and rapid handling and transportation, has relatively high economic benefits, the process of collecting silt is not limited by capacity, has a relatively high working efficiency, and at the same time the overall device will not affect the surrounding environment during the process of silt transportation.

Description

Technical Field

[0001] The invention relates to the technical field of river silt clearing devices, and in particular to a silt clearing device for a water conservancy project in a river. Background Art

[0002] Rivers play an important role in urban development. They are effective channels to avoid flood disasters. They can discharge floodwaters during the summer flood season. At the same time, they can cooperate with gates and reservoirs to reduce the peak water flow of rivers, so as to achieve the purpose of flood retention and relief of dam pressure. Desilting the river is an important means to protect the smooth flow of the river, control the river situation and stabilize the water flow.

[0003] Most of the existing river dredging equipment are dredging ships. The sucked sludge is generally stored on the ship or transported to the shore for centralized storage. The stored sludge is not convenient for rapid handling and transportation, which is not conducive to the subsequent recycling of the sludge. In addition, the sludge storage capacity of the existing dredging equipment is limited, and the dredging efficiency will be limited by its own capacity, resulting in low work efficiency. At the same time, the existing dredging equipment is prone to cause pollution to the surrounding area during the sludge transportation and storage process, which is very likely to affect the surrounding environment.

[0004] Therefore, in order to solve such problems, we propose a hydraulic engineering dredging device for rivers. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a dredging device for a water conservancy project in a river.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A silt removal device for a water conservancy project in a river comprises a mobile platform, wherein a drainage trough is arranged on the upper side of the mobile platform, two drainage pipes are arranged in parallel and symmetrically on one side of the drainage trough, a mounting plate is arranged on the side of the drainage trough, and the mounting plate is located between the two drainage pipes and is fixedly connected to the upper side of the mobile platform, a plurality of roller mechanisms are evenly fixed in the notch of the drainage trough, a plurality of silt removal interfaces are fixed on the side of the mounting plate, and the plurality of silt removal interfaces correspond to the plurality of roller mechanisms respectively, a filter bag is matched with the silt removal interface, the filter bag is provided with a silt inlet, a flange ring is fixed at the port of the silt inlet, a stacking mechanism matching the flange ring is arranged on the silt removal interface, a clamping mechanism matching the flange ring is arranged on the side of the silt removal interface, a closing mechanism matching the silt inlet is arranged on the side of the mounting plate, a pressing mechanism matching the plurality of filter bags is arranged on the upper side of the drainage trough, a filter bag placing mechanism matching the plurality of filter bags is arranged on the side of the mobile platform, and a silt suction mechanism and a flocculant conveying component are matched with the silt removal interface;

[0008] On one side of the mounting plate, a silt diversion pipe fixedly connected to a number of silt discharge interfaces is fixed. An electric half-ball valve is fixed at the docking part of the silt diversion pipe and the number of silt discharge interfaces. A docking pipe is fixed in the middle of the silt diversion pipe. The mobile platform is equipped with a silt pump suction assembly matching the docking pipe.

[0009] Preferably, the roller mechanism includes a roller mounting frame fixedly connected to the port of the drainage groove. A number of rotating rollers are rotatably mounted on the roller mounting frame, and a number of convex strips are fixedly arranged around the side surface of the rotating rollers.

[0010] Preferably, the stacking mechanism includes two vertically arranged limiting columns. A U-shaped sinking groove matching the flange ring is arranged on the side of the silt discharge interface. The two limiting columns are fixedly connected to the silt discharge interface and are symmetrically arranged on both sides of the U-shaped sinking groove of the silt discharge interface. Both of the two limiting columns are provided with sliding grooves matching the flange ring. A sliding plate is fixed on the end surface of the U-shaped sinking groove of the silt discharge interface. The cross section of the sliding plate is arc-shaped and matches the side of the flange ring.

[0011] Preferably, the clamping mechanism includes two first hydraulic expansion rods symmetrically arranged on both sides of the port of the silt discharge interface. Both of the two first hydraulic expansion rods are fixedly connected to the side surface of the mounting plate through mounting frames. The telescopic ends of the two first hydraulic expansion rods are both inclined towards the port of the silt discharge interface, and extrusion blocks are fixed at the telescopic ends of the two first hydraulic expansion rods. The extrusion blocks are arc-shaped and correspond to the port of the silt discharge interface.

[0012] Preferably, the closing mechanism includes a placement groove arranged below the silt discharge interface. The cross section of the placement groove is U-shaped, and a number of U-shaped iron bars are evenly placed and matched inside the placement groove. The mounting plate is provided with a number of rectangular windows, and the number of rectangular windows corresponds to the number of placement grooves. A first electric push rod is arranged at one end of the placement groove, and the first electric push rod is fixedly embedded in the mounting plate. A push plate is fixed at one end of the first electric push rod, and the shape of the push plate matches the shape of the placement groove. A second electric push rod is arranged at the end of the placement groove away from the push plate. The second electric push rod is vertically arranged and fixedly embedded in the corresponding roller mounting frame. A suction cup is fixed at the telescopic end of the second electric push rod. An air pump matching the suction cup is arranged in the roller mounting frame. The placement groove is provided with an opening matching the suction cup. Two second hydraulic expansion rods are symmetrically arranged at the port of the silt discharge interface. Both of the two second hydraulic expansion rods are fixedly connected to the side surface of the mounting plate through mounting seats. The telescopic ends of the two second hydraulic expansion rods are arranged oppositely, and iron bar compression blocks are fixed at the telescopic ends of the two second hydraulic expansion rods.

[0013] Preferably, the pressing mechanism includes a hydraulic expansion rod support frame fixed between the mounting plate and the roller mounting frame. A third hydraulic expansion rod is vertically fixed on the hydraulic expansion rod support frame. The telescopic end of the third hydraulic expansion rod faces downward and is fixed with a pressing frame. The pressing frame corresponds to the filter bag. Both sides of the pressing frame are inclined downward and a number of rollers are evenly rotatably arranged.

[0014] Preferably, the filter bag placement mechanism includes a truss detachably fixed to the side of the mobile platform. A number of placement plates are evenly rotatably arranged on the truss. Partition plates are correspondingly arranged on both sides of the number of placement plates. The number of partition plates is fixedly connected to the upper side of the truss. The number of placement plates respectively correspond to the positions of the number of roller mounting frames. A number of balls are rotatably embedded on the surface of the placement plates. Two fourth hydraulic telescopic rods are symmetrically arranged under the placement plates. The fourth hydraulic telescopic rods are arranged obliquely, and the two ends of the fourth hydraulic telescopic rods are respectively rotatably connected to the lower side of the placement plates and the lower end of the truss.

[0015] Preferably, the sludge suction mechanism includes a suction pipe penetrating through and fixedly connected to the mounting plate. The suction pipe is horizontally arranged, and one end of the suction pipe is bent and fixedly connected to the side wall of the silt discharge interface. A third electric push rod is fixed to one end of the suction pipe. The third electric push rod is fixedly connected to the mounting plate. The telescopic end of the third electric push rod is arranged inside the suction pipe, and a push block is coaxially fixed to the telescopic end of the third electric push rod. The push block is made of rubber and is slidably matched with the inside of the suction pipe.

[0016] Preferably, the flocculant delivery component includes a vertical pipe located below the suction pipe. The upper end of the vertical pipe is fixedly connected to the suction pipe. A fourth electric push rod is fixed to the lower end of the vertical pipe. The telescopic end of the fourth electric push rod is located inside the vertical pipe, and a feeding push head is coaxially fixed to the telescopic end of the fourth electric push rod. The feeding push head is slidably matched with the vertical pipe. A flocculant delivery pipe is arranged on the side of the vertical pipe. The flocculant delivery pipe is obliquely arranged, and the upper end of the flocculant delivery pipe is fixedly connected to the side of the vertical pipe. A spiral blade is arranged inside the flocculant delivery pipe. A motor is coaxially fixed to the lower end of the flocculant delivery pipe. The motor is coaxially fixed to the spiral blade. A flocculant storage hopper is arranged above the flocculant delivery pipe. The flocculant storage hopper is fixedly connected to the side of the mounting plate. An outlet is arranged at the lower end of the flocculant storage hopper, and the outlet is fixedly connected to the flocculant delivery pipe.

[0017] Preferably, the sludge pump suction component includes a floating boat. A stable seat is fixed on the floating boat. A mobile vehicle is detachably fixed to the stable seat. A sludge pump suction device is fixed on the mobile vehicle. The sludge pump suction device is connected to the docking pipe through a delivery hose.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1: In the present invention, by providing a silt diversion pipe, a number of silt discharge interfaces, and corresponding filter bags, silt can be transported into the filter bags for collection, and most of the water in the silt can be filtered and discharged through the filter bags, achieving the effect of accumulating and storing silt during continuous transportation. The filter bags filled with silt can be conveniently and quickly carried and transported, which is beneficial for subsequent silt dumping and recycling. At the same time, the filter bags can also be recycled, having high economic benefits. Compared with the existing silt removal devices with limited silt storage capacity, the present invention can effectively meet the silt removal requirements of various river channels by providing a sufficient number of filter bags, without being restricted by capacity, and has high working efficiency. At the same time, the overall device is fully enclosed during silt transportation and will not affect the surrounding environment.

[0020] 2: In the present invention, by providing a roller mechanism, a pressing mechanism, a silt suction mechanism, and a flocculant delivery component that match the filter bags, operations such as squeezing the filter bags and adding flocculants into the filter bags can be achieved. Through the squeezing operation, the water inside the filter bags can be accelerated and extruded, realizing the rapid accumulation of silt. By adding flocculants, the sedimentation efficiency of the silt can be effectively improved, further realizing the rapid recovery of silt.

[0021] 3: In the present invention, by providing a clamping mechanism, a sealing mechanism, and a filter bag placement mechanism that match the filter bags, stable fixation and replacement of the filter bags can be achieved, and automatic sealing operations of the filter bags can be realized, facilitating subsequent recycling operations. At the same time, the filter bags can be made to slide and be placed on the road surface, effectively facilitating the subsequent recycling and handling of the filter bags and the silt as a whole, without causing pollution to the surrounding environment and having high working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is an axonometric view of a hydraulic engineering silt removal device for a river channel proposed by the present invention;

[0023] Figure 2 is an axonometric view of a hydraulic engineering silt removal device for a river channel proposed by the present invention;

[0024] Figure 3 is Figure 2 a partial enlarged view of part A in

[0025] Figure 4 is a structural schematic diagram of a filter bag of a hydraulic engineering silt removal device for a river channel proposed by the present invention;

[0026] Figure 5 is a structural schematic diagram of a silt discharge interface of a hydraulic engineering silt removal device for a river channel proposed by the present invention;

[0027] Figure 6Schematic structural diagram of a placement groove of a dredging device for a water conservancy project for a river channel proposed by the present invention;

[0028] Figure 7 Schematic structural diagram of a pressing-down frame of a dredging device for a water conservancy project for a river channel proposed by the present invention;

[0029] Figure 8 Schematic structural diagram of a roller mounting bracket of a dredging device for a water conservancy project for a river channel proposed by the present invention;

[0030] Figure 9 Schematic structural diagram of a truss of a dredging device for a water conservancy project for a river channel proposed by the present invention;

[0031] Figure 10 Cross-sectional view of a suction pipe of a dredging device for a water conservancy project for a river channel proposed by the present invention;

[0032] Figure 11 Cross-sectional view of a vertical pipe, a flocculant delivery pipe, and a flocculant storage hopper of a dredging device for a water conservancy project for a river channel proposed by the present invention;

[0033] Figure 12 Front view of a dredging device for a water conservancy project for a river channel proposed by the present invention.

[0034] In the figure: 1, mobile platform; 2, drainage trough; 3, drain pipe; 4, mounting plate; 5, silt discharge interface; 6, filter bag; 7, silt inlet; 8, flange ring; 9, silt diversion pipe; 10, electric ball valve; 11, docking pipe; 12, roller mounting bracket; 13, rotating roller; 14, convex strip; 15, limiting column; 16, first hydraulic telescopic rod; 17, extrusion block; 18, placement groove; 19, U-shaped iron bar; 20, first electric push rod; 21, push plate; 22, iron bar compression block; 23, second electric push rod; 24, suction cup; 25, second hydraulic telescopic rod; 26, rectangular window; 27, sliding plate; 28, hydraulic telescopic rod support frame; 29, third hydraulic telescopic rod; 30, pressing-down frame; 31, roller; 32, truss; 33, placement plate; 34, partition board; 35, ball; 36, fourth hydraulic telescopic rod; 37, suction pipe; 38, third electric push rod; 39, vertical pipe; 40, fourth electric push rod; 41, feeding push head; 42, flocculant delivery pipe; 43, spiral blade; 44, motor; 45, flocculant storage hopper; 46, floating boat; 47, stabilizing seat; 48, mobile vehicle; 49, silt pump suction device; 50, conveying hose; 51, push block. Detailed implementation manners

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0036] Referring to Figures 1-12 , a dredging device for water conservancy projects in river channels, including a mobile platform 1, which plays a role in stably supporting the components installed on its upper side and can move along the river bank of the river channel. There is a drainage groove 2 on the upper side of the mobile platform 1. Two drain pipes 3 are symmetrically arranged in parallel on one side of the drainage groove 2. The drainage groove 2 and the drain pipes 3 are used for subsequent drainage operations. The drain pipes 3 can be connected to an external pipeline to discharge the water back into the river, so as not to affect the surrounding environment during the drainage process. There is a mounting plate 4 on the side of the drainage groove 2, and the mounting plate 4 is located between the two drain pipes 3 and is fixedly connected to the upper side of the mobile platform 1. A number of roller mechanisms are uniformly fixed in the notch of the drainage groove 2. A number of silt discharge interfaces 5 are fixed on the side of the mounting plate 4, and the number of silt discharge interfaces 5 corresponds to the number of roller mechanisms respectively. A filter bag 6 is provided for the silt discharge interface 5. The silt enters the inside of the filter bag 6. The filter bag 6 filters out most of the water in the silt and leaves the solid silt debris in the filter bag 6. The filter bag 6 is provided with a silt inlet 7, and a flange ring 8 is fixed at the port of the silt inlet 7. The filter bag 6, the silt inlet 7 and the flange ring 8 form an integral body. A stacking mechanism matching the flange ring 8 is provided on the silt discharge interface 5, a clamping mechanism matching the flange ring 8 is provided on the side of the silt discharge interface 5, a closing mechanism matching the silt inlet 7 is provided on the side of the mounting plate 4, a pressing mechanism matching the number of filter bags 6 is provided on the upper side of the drainage groove 2, and a filter bag placement mechanism matching the number of filter bags 6 is provided on the side of the mobile platform 1; The silt discharge interface 5 is matched with a silt suction mechanism and a flocculant delivery component;

[0037] A silt diversion pipe 9 fixedly connected to the number of silt discharge interfaces 5 is fixed on one side of the mounting plate 4. An electric half-ball valve 10 is fixed at the docking part of the silt diversion pipe 9 and the number of silt discharge interfaces 5. The electric half-ball valve 10 is used to connect and open and close the corresponding silt discharge interface 5. A docking pipe 11 is fixed in the middle of the silt diversion pipe 9. The mobile platform 1 is equipped with a silt pump suction component matching the docking pipe 11.

[0038] As a technical optimization solution of the present invention, the roller mechanism includes a roller mounting frame 12 fixedly connected to the port of the drainage groove 2. A plurality of rotating rollers 13 are rotatably mounted on the roller mounting frame 12. That is, pulley wheels are provided at both ends of the plurality of rotating rollers 13. On both sides inside the roller mounting frame 12, there is a transmission belt for driving the pulley wheels of the plurality of rotating rollers 13 to rotate. And a belt driving motor for driving the belt to rotate is fixed inside the roller mounting frame 12. The belt driving motor inside the roller mounting frame 12 controls the rotation of the belt through the belt, and the belt then drives the plurality of pulley wheels to rotate, thereby controlling the rotation of the plurality of rotating rollers 13. The plurality of rotating rollers 13 can perform power rotation, and the plurality of rotating rollers 13 can convey the filter bag 6. A plurality of convex strips 14 are fixedly wound around the side surface of the rotating roller 13.

[0039] As a technical optimization solution of the present invention, the stacking mechanism includes two vertically arranged limiting columns 15. There is a U-shaped sunk groove matching the flange ring 8 on the side of the silt discharge interface 5. The two limiting columns 15 are fixedly connected to the silt discharge interface 5 and are symmetrically arranged on both sides of the U-shaped sunk groove of the silt discharge interface 5. Both of the two limiting columns 15 are provided with sliding grooves matching the flange ring 8. A plurality of flange rings 8 can be correspondingly embedded in the two sliding grooves, achieving the effect of stacking a plurality of flange rings 8 between the two limiting columns 15. And the flange ring 8 can be slidably embedded into the U-shaped sunk groove. The stacking of a plurality of flange rings 8 realizes the stacking of a plurality of filter bags 6. A sliding plate 27 is fixedly arranged on the end surface of the U-shaped sunk groove of the silt discharge interface 5. The cross section of the sliding plate 27 is arc-shaped and matches the side of the flange ring 8. The sliding plate 27 plays a role in restricting and supporting the flange ring 8.

[0040] As a technical optimization solution of the present invention, the clamping mechanism includes two first hydraulic expansion rods 16 symmetrically arranged on both sides of the port of the silt discharge interface 5. Both of the two first hydraulic expansion rods 16 are fixedly connected to the side surface of the mounting plate 4 through mounting frames. The telescopic ends of the two first hydraulic expansion rods 16 are both inclined towards the port of the silt discharge interface 5. And extrusion blocks 17 are fixed to the telescopic ends of the two first hydraulic expansion rods 16. The extrusion blocks 17 are arc-shaped and correspond to the port of the silt discharge interface 5. When the two first hydraulic expansion rods 16 extend, they can drive the two extrusion blocks 17 to clamp and fix the flange ring 8, that is, to dock and fix the filter bag 6 corresponding to the flange ring 8 with the silt discharge interface 5, so that the filter bag 6 is in the working position. When the two first hydraulic expansion rods 16 contract, they can drive the two extrusion blocks 17 to retract. Because the telescopic ends of the two first hydraulic expansion rods 16 are both inclined towards the port of the silt discharge interface 5, at this time, the distance between the two extrusion blocks 17 becomes larger after contraction, thereby achieving the effect of releasing the restriction on the flange ring 8.

[0041] As a technical optimization solution of the present invention, the closing mechanism includes a placement groove 18 arranged below the silt discharge interface 5. The cross-section of the placement groove 18 is U-shaped, and a number of U-shaped iron bars 19 are evenly and correspondingly placed inside the placement groove 18. The U-shaped iron bars 19 are parts processed by cutting existing metal iron sheets with good plasticity. The mounting plate 4 is provided with a number of rectangular windows 26, and the number of rectangular windows 26 corresponds to the number of placement grooves 18. The rectangular windows 26 facilitate the staff to replenish the U-shaped iron bars 19 into the placement groove 18 or perform maintenance on related components. One end of the placement groove 18 is provided with a first electric push rod 20. The first electric push rod 20 is fixedly embedded in the mounting plate 4. One end of the first electric push rod 20 is fixed with a push plate 21, and the shape of the push plate 21 matches the shape of the placement groove 18. The first electric push rod 20 drives the push plate 21 to move, which can push a number of U-shaped iron bars 19 to move. And the first electric push rod 20 only drives the push plate 21 to move a distance equal to the width of one U-shaped iron bar 19 each time. The end of the placement groove 18 away from the push plate 21 is provided with a second electric push rod 23. The second electric push rod 23 is vertically arranged and fixedly embedded in the corresponding roller mounting frame 12. The telescopic end of the second electric push rod 23 is fixed with a suction cup 24. A gas pump matching the suction cup 24 is arranged in the roller mounting frame 12, that is, a preset space for the gas pump is arranged in the roller mounting frame 12, and the gas pump is connected to the suction cup 24 through an air pipe. The placement groove 18 is provided with an opening matching the suction cup 24. The first electric push rod 20 drives the push plate 21 to move and pushes a number of U-shaped iron bars 19 to move, so that the U-shaped iron bar 19 at the edge abuts against one end of the placement groove 18. At this time, the U-shaped iron bar 19 exactly corresponds to the position of the opening of the placement groove 18. Then the second electric push rod 23 rises and drives the suction cup 24 to rise. The suction cup 24 contacts the lower part of the U-shaped iron bar 19 and adsorbs the U-shaped iron bar 19. The second electric push rod 23 continues to rise until the U-shaped iron bar 19 reaches the set working position and then stops. Two second hydraulic telescopic rods 25 are symmetrically arranged at the port of the silt discharge interface 5. Both of the two second hydraulic telescopic rods 25 are fixedly connected to the side surface of the mounting plate 4 through mounting seats. The telescopic ends of the two second hydraulic telescopic rods 25 are arranged oppositely, and iron bar compression blocks 22 are fixed at the telescopic ends of the two second hydraulic telescopic rods 25. The iron bar compression blocks 22 are semi-circular, and a number of convex blocks are arranged inside. After the U-shaped iron bar 19 reaches the set working position, at this time, the U-shaped iron bar 19 exactly corresponds to the position of the silt inlet 7 of the filter bag 6. Then the two second hydraulic telescopic rods 25 can drive the two iron bar compression blocks 22 to move respectively, so that the distance between the two iron bar compression blocks 22 becomes smaller and they are combined, realizing the extrusion operation on the U-shaped iron bar 19. The extruded and deformed U-shaped iron bar 19 effectively realizes the extrusion and closing of the silt inlet 7.

[0042] As a technical optimization solution of the present invention, the pressing mechanism includes a hydraulic telescopic rod support frame 28 fixed between the mounting plate 4 and the roller mounting frame 12. When the filter bags 6 are stacked, several filter bags 6 not at the working station can be supported by the hydraulic telescopic rod support frame 28. When replacing the filter bags 6, the operator can draw out the lower filter bag 6 from the hydraulic telescopic rod support frame 28, so that the flange ring 8 of the filter bag 6 slides and fits into the corresponding U-shaped sink below between the two limit posts 15, achieving the effect of positioning to the working station. A third hydraulic telescopic rod 29 is vertically fixed on the hydraulic telescopic rod support frame 28. The telescopic end of the third hydraulic telescopic rod 29 faces downward and is fixed with a pressing frame 30. The pressing frame 30 corresponds to the filter bag 6. Both sides of the pressing frame 30 are inclined downward and are evenly rotated with several rollers 31. The third hydraulic telescopic rod 29 can drive the pressing frame 30 to lift and lower. The pressing frame 30 and several rollers 31 can squeeze the upper side and both sides of the filter bag 6.

[0043] As a technical optimization solution of the present invention, the filter bag placing mechanism includes a truss 32 detachably fixed to the side of the moving platform 1. Several placing plates 33 are evenly rotated on the truss 32. After several placing plates 33 are rotated, their inclined downward ends face the rear end of the moving platform 1. The placing plates 33 are used to carry the filter bags 6 filled with silt later. Partition plates 34 are matched and arranged on both sides of several placing plates 33. Several partition plates 34 are fixedly connected to the upper side of the truss 32. Several partition plates 34 are used to limit the filter bags 6. Several placing plates 33 respectively correspond to the positions of several roller mounting frames 12. Several balls 35 are rotatably embedded on the surface of the placing plates 33. Several balls 35 facilitate the conveyance of the filter bags 6 onto the placing plates 33. Two fourth hydraulic telescopic rods 36 are symmetrically arranged on the lower side of the placing plate 33. The fourth hydraulic telescopic rods 36 are inclined. The two ends of the fourth hydraulic telescopic rods 36 are respectively rotatably connected to the lower side of the placing plate 33 and the lower end of the truss 32. When the two fourth hydraulic telescopic rods 36 on the lower side of the placing plate 33 are activated and contracted, the placing plate 33 can be tilted and rotated to one side, so that the filter bag 6 on the upper side of the placing plate 33 slides off. In practical applications, it is used to slide and place the filter bags 6 filled with silt onto the river bank road surface, facilitating the subsequent recovery and handling of the filter bags 6 and the silt.

[0044] As a technical optimization solution of the present invention, the sludge suction mechanism includes a suction pipe 37 that penetrates and is fixedly connected to the mounting plate 4. The suction pipe 37 is horizontally arranged, and one end of the suction pipe 37 is bent and fixedly connected to the side wall of the silt discharge interface 5, that is, in communication. A third electric push rod 38 is fixed to one end of the suction pipe 37. The third electric push rod 38 is fixedly connected to the mounting plate 4. The telescopic end of the third electric push rod 38 is arranged inside the suction pipe 37, and a push block 51 is coaxially fixed to the telescopic end of the third electric push rod 38. The push block 51 is made of rubber and is slidably matched with the inside of the suction pipe 37. The rubber push block 51 can be bent and can enter the bent section of the suction pipe 37. The third electric push rod 38 can drive the push block 51 to pull back. If there is sludge inside the silt discharge interface 5, the push block 51 can suck the sludge inside the silt discharge interface 5 into the suction pipe 37. The suction pipe 37 has enough space to meet the amount of sludge that needs to be sucked.

[0045] As a technical optimization solution of the present invention, the flocculant delivery assembly includes a vertical pipe 39 located below the suction pipe 37. The upper end of the vertical pipe 39 is fixedly connected to the suction pipe 37, that is, in communication. A fourth electric push rod 40 is fixed to the lower end of the vertical pipe 39. The telescopic end of the fourth electric push rod 40 is arranged inside the vertical pipe 39, and a feed push head 41 is coaxially fixed to the telescopic end of the fourth electric push rod 40. The feed push head 41 is slidably matched with the inside of the vertical pipe 39. The fourth electric push rod 40 can drive the feed push head 41 to move along the inside of the vertical pipe 39. A flocculant delivery pipe 42 is provided on the side of the vertical pipe 39. The flocculant delivery pipe 42 is inclined, and the upper end of the flocculant delivery pipe 42 is fixedly connected to the side of the vertical pipe 39, that is, in communication. A spiral blade 43 is arranged inside the flocculant delivery pipe 42. A motor 44 is coaxially fixed to the lower end of the flocculant delivery pipe 42. The motor 44 is coaxially fixed to the spiral blade 43. A flocculant storage hopper 45 is provided above the flocculant delivery pipe 42, and the flocculant storage hopper 45 is fixedly connected to the side of the mounting plate 4. The flocculant is in powder form and can produce solid precipitation in about five minutes when mixed with turbid water. The flocculant is stored inside the flocculant storage hopper 45. A cover is snap-fitted at the upper end of the flocculant storage hopper 45. During use, the flocculant storage hopper 45 can be replenished with flocculant. The lower end of the flocculant storage hopper 45 is provided with a discharge port, and the discharge port is fixedly connected to the flocculant delivery pipe 42, that is, in communication. The flocculant can enter the inside of the flocculant delivery pipe 42 through the discharge port. When the motor 44 is started, it can drive the spiral blade 43 to rotate. The rotation of the spiral blade 43 can convey the flocculant inside the flocculant delivery pipe 42 and convey the flocculant into the vertical pipe 39. There is a through hole at the bottom of the vertical pipe 39. When the feed push head 41 is at the upper end position of the vertical pipe 39, if the flocculant drops, it can be discharged from the through hole, which can effectively prevent the flocculant from dropping and blocking.

[0046] As a technical optimization solution of the present invention, the sludge pump suction assembly includes a floating boat 46 which can float on the river surface and move powerfully. A stable seat 47 is fixed on the floating boat 46, and a mobile vehicle 48 is detachably fixed on the stable seat 47. A sludge pump suction device 49 is fixed on the mobile vehicle 48. The sludge pump suction device 49 can extend into the river bottom for sludge suction. The sludge pump suction device 49 is connected to the docking pipe 11 through a delivery hose 50. During application, the sludge pump suction device 49 sucks sludge and transports the sludge into the docking pipe 11 through the delivery hose 50. The mobile vehicle 48 can be detached from the stable seat 47 together with the sludge pump suction device 49. The mobile vehicle 48 can move powerfully and can move within the culvert of the river course, so that the sludge pump suction device 49 can suck and clean the sludge inside the culvert.

[0047] When the present invention is in use, the floating boat 46 is arranged on the river surface of the river course, and the mobile platform 1 is arranged on the roadside surface of the river bank. During the dredging operation, the sludge pump suction device 49 is extended into the river bottom for sludge suction. The sludge pump suction device 49 sucks sludge and transports the sludge into the docking pipe 11 through the delivery hose 50. The sludge is diverted through the sludge diversion pipe 9 to a number of silt discharge interfaces 5. If a filter bag 6 is connected to the silt discharge interface 5, at this time, the electric half-ball valve 10 at the corresponding silt discharge interface 5 is opened, and the sludge enters the inside of the filter bag 6 through the silt discharge interface 5. The filter bag 6 filters and discharges most of the water in the sludge and leaves solid sludge and other sundries in the filter bag 6. And during the continuous transportation process, the filter bag 6 can accumulate the sludge. Since the volume of the filter bag 6 is small, the filter bag 6 filled with sludge can be conveniently and quickly carried and transported, and it is convenient for subsequent dumping and recycling of the sludge. For example, laying sludge on farmland can effectively supplement the fertility of the farmland. At the same time, the filter bag 6 can also be recycled, which has high economic benefits, or the filter bag 6 filled with sludge can also be stacked and stored, which is convenient for various applications in different situations in the future, such as for temporary flood prevention foundation building or backfilling and leveling of tunnels. Compared with the existing dredging device with limited sludge storage capacity, the present invention can effectively meet the dredging requirements of various river courses by setting a sufficient number of filter bags 6, without being limited by the capacity, and has high working efficiency.

[0048] During the process of discharging silt into the filter bag 6, the two first hydraulic telescopic rods 16 corresponding to the silt discharge interface 5 remain in the extended state, so that the two extrusion blocks 17 clamp and fix the flange ring 8 of the filter bag 6, that is, the filter bag 6 corresponding to the flange ring 8 is docked and fixed with the silt discharge interface 5, effectively ensuring the sealing and stability of the filter bag 6 interface, and having good impact resistance, so that during the silt collection process, the silt transportation is fully enclosed and will not cause pollution to the surrounding environment. And during the process of discharging silt into the filter bag 6, the third hydraulic telescopic rod 29 corresponding to the upper part drives the lower pressing frame 30 to descend and squeeze the filter bag 6. At this time, the filter bag 6 is propped up and expanded by the silt and water. The lower pressing frame 30 and several rollers 31 can squeeze the upper side and both sides of the filter bag 6, which can accelerate the extrusion of the water inside the filter bag 6 and realize the rapid accumulation of silt. At the same time, the belt drive motor inside the roller shaft mounting frame 12 starts and controls the rotation of the belt, and the belt drives several belt wheels to rotate, and then controls the rotation of several rotating rollers 13. The several rotating rollers 13 rotate below the filter bag 6 and are in contact with it. The several convex strips 14 on the several rotating rollers 13 continuously dial the surface of the filter bag 6, further accelerating the extrusion of the water inside the filter bag 6 and realizing the rapid accumulation of silt. And the water filtered by the filter bag 6 can flow back into the river through the drainage trough 2 and the drainage pipe 3, and the entire drainage process does not affect the surrounding environment.

[0049] During the process of discharging sludge into the filter bag 6, a flocculant can be added to accelerate the precipitation of the sludge, facilitating rapid recovery. The motor 44 is started to drive the spiral blade 43 to rotate. The rotation of the spiral blade 43 conveys the flocculant inside the flocculant delivery pipe 42 and transports the flocculant into the vertical pipe 39. At this time, the fourth electric push rod 40 contracts, and the feeding push head 41 is located at the lower end of the vertical pipe 39. The flocculant accumulates above the feeding push head 41, and the third electric push rod 38 is in the extended state. The push block 51 is located at one end where the suction pipe 37 contacts the sludge discharge interface 5 and blocks the suction pipe 37. Then, the third electric push rod 38 is started to drive the push block 51 to pull back. The push block 51 extracts some sludge into the inside of the suction pipe 37. At this time, the push block 51 is located at the rear end of the suction pipe 37. The fourth electric push rod 40 is started to drive the feeding push head 41 to rise, pushing the flocculant into the inside of the suction pipe 37 to mix with the sludge. Then, the third electric push rod 38 is started and extended to drive the push block 51. The push block 51 pushes the sludge mixed with the flocculant into the sludge discharge interface 5 and enters the filter bag 6 along with the flowing sludge. Then, the feeding push head 41 moves down to reset, and the addition of the flocculant can be carried out again. At the same time, the belt drive motor inside the roller mounting frame 12 starts and controls the rotation of the belt. The belt then drives several belt wheels to rotate, thereby controlling the rotation of several rotating rollers 13. The several rotating rollers 13 continuously stir and disturb the inside of the filter bag 6, which can accelerate the mixing of the flocculant inside the filter bag 6, effectively improve the precipitation efficiency of the sludge, and achieve the rapid recovery of the sludge. During this process, the vertical pipe 39 will not enter the sludge, the inside of the flocculant delivery pipe 42 will not be affected, and the flocculant can be continuously added according to requirements later, that is, this process is continuously repeated.

[0050] After the sludge collection amount of the filter bag 6 is completed (determined by the staff), the third hydraulic telescopic rod 29 above drives the pressing frame 30 to rise and reset, the corresponding electric ball valve 10 closes, and at the same time, the first electric push rod 20 below the corresponding sludge discharge interface 5 drives the push plate 21 to move and pushes several U-shaped iron bars 19 to move, so that the U-shaped iron bars 19 at the edge abut against one end of the placement groove 18, and the U-shaped iron bars 19 are at the position corresponding to the opening of the placement groove 18. At this time, the corresponding second electric push rod 23 rises and drives the suction cup 24 to rise. The suction cup 24 contacts the lower part of the U-shaped iron bar 19 and adsorbs the U-shaped iron bar 19. The second electric push rod 23 continues to rise until the U-shaped iron bar 19 reaches the set working position and stops. The U-shaped iron bar 19 just corresponds to the sludge inlet 7 of the filter bag 6. Then, the corresponding two second hydraulic telescopic rods 25 drive the two iron bar compression blocks 22 to move respectively, so that the distance between the two iron bar compression blocks 22 becomes smaller and finally merges, realizing the extrusion operation on the U-shaped iron bar 19. The extruded and deformed U-shaped iron bar 19 effectively realizes the extrusion and closing of the sludge inlet 7. Then, the corresponding third electric push rod 38 starts to drive the push block 51 to pull back. The push block 51 sucks the sludge inside the closed sludge discharge interface 5 and the sludge inlet 7 into the suction pipe 37. When the push block 51 pulls back, the feeding push head 41 is located at the upper end blocking position of the vertical pipe 39. Then, the corresponding two first hydraulic telescopic rods 16 contract, driving the two extrusion blocks 17 to retract, releasing the limiting effect on the flange ring 8, and the flange ring 8 separates. At this time, since most of the sludge is sucked into the suction pipe 37, there will be no situation where a large amount of sludge falls when the flange ring 8 separates and causes pollution to the surrounding area. Then, under the action of the rotation of several rotating rollers 13, the filter bag 6 accumulating sludge is conveyed to the corresponding placement plate 33. The two fourth hydraulic telescopic rods 36 on the lower side of the placement plate 33 start and contract, making the placement plate 33 tilt and rotate to one side, so that the filter bag 6 on the upper side of the placement plate 33 slides off. The filter bag 6 slides off and is placed on the road surface, effectively facilitating the subsequent recycling and handling of the filter bag 6 and the sludge as a whole. At this time, the filter bags 6 at other workstations can still collect sludge, effectively ensuring the continuity of sludge recycling. And after several filter bags 6 fall, the mobile platform 1 moves forward a certain distance.

[0051] When replacing the empty filter bag 6, several filter bags 6 are stacked on the hydraulic telescopic rod support frame 28. The staff extracts the filter bag 6 at the lower side from the hydraulic telescopic rod support frame 28 and presses down and moves the flange ring 8 of the filter bag 6 to slide and embed into the corresponding U-shaped sink below between the two limit posts 15, positioning it to the working position. The sliding plate 27 effectively supports the flange ring 8, and the corresponding two first hydraulic telescopic rods 16 extend, which can drive the two extrusion blocks 17 to clamp and fix the flange ring 8, that is, docking and fixing the filter bag 6 corresponding to the flange ring 8 with the sludge discharge interface 5. Then, the corresponding electric ball valve 10 is opened, and the operation of filtering sludge again can be carried out.

[0052] When applying the sludge pump suction assembly, the sludge pump suction device 49 sucks sludge and conveys the sludge through the delivery hose 50 into the docking pipe 11, and then conveys it from the docking pipe 11 into the sludge diversion pipe 9 and disperses it to a number of silt discharge interfaces 5, achieving the effect of sucking and dredging the silt. At the same time, when it is necessary to clean the riverside culvert, the mobile vehicle 48 can be removed from the stable seat 47 together with the sludge pump suction device 49. By arranging the mobile vehicle 48 in the culvert and moving forward in the culvert, the sludge pump suction device 49 can suck and clean the sludge inside the culvert, realizing the diversity of cleaning.

[0053] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A dredging device for water conservancy projects in river channels, including a mobile platform (1), characterized in that, a drainage groove (2) is provided on the upper side of the mobile platform (1), two drain pipes (3) are symmetrically arranged in parallel on one side of the drainage groove (2), a mounting plate (4) is provided on the side of the drainage groove (2), and the mounting plate (4) is located between the two drain pipes (3) and is fixedly connected to the upper side of the mobile platform (1). A number of roller mechanisms are evenly fixed in the notch of the drainage groove (2). A number of silt discharge interfaces (5) are fixed on the side of the mounting plate (4), and the number of silt discharge interfaces (5) corresponds to the number of roller mechanisms respectively. A filter bag (6) is provided for the silt discharge interface (5). The filter bag (6) is provided with a silt inlet (7), and a flange ring (8) is fixed at the port of the silt inlet (7). A stacking mechanism matching the flange ring (8) is provided on the silt discharge interface (5). A clamping mechanism matching the flange ring (8) is provided on the side of the silt discharge interface (5). A closing mechanism matching the silt inlet (7) is provided on the side of the mounting plate (4). A pressing mechanism matching the number of filter bags (6) is provided on the upper side of the drainage groove (2). A filter bag placement mechanism matching the number of filter bags (6) is provided on the side of the mobile platform (1). A silt suction mechanism and a flocculant delivery component are provided for the silt discharge interface (5); a silt diversion pipe (9) fixedly connected to the number of silt discharge interfaces (5) is fixed on one side of the mounting plate (4). An electric half-ball valve (10) is fixed at the docking part of the silt diversion pipe (9) and the number of silt discharge interfaces (5). A docking pipe (11) is fixed in the middle of the silt diversion pipe (9). The mobile platform (1) is provided with a silt pump suction component matching the docking pipe (11); the roller mechanism includes a roller mounting frame (12) fixedly connected to the port of the drainage groove (2). A number of rotating rollers (13) are rotatably mounted on the roller mounting frame (12). A number of convex strips (14) are fixedly arranged around the side of the rotating roller (13); the stacking mechanism includes two vertically arranged limit columns (15). A U-shaped sinking groove matching the flange ring (8) is provided on the side of the silt discharge interface (5). The two limit columns (15) are fixedly connected to the silt discharge interface (5) and are symmetrically arranged on both sides of the U-shaped sinking groove of the silt discharge interface (5). Both of the two limit columns (15) are provided with sliding grooves matching the flange ring (8). A sliding plate (27) is fixed on the end face of the U-shaped sinking groove of the silt discharge interface (5). The cross section of the sliding plate (27) is arc-shaped and matches the side of the flange ring (8).

2. A dredging device for water conservancy projects in river channels according to claim 1, characterized in that, the clamping mechanism includes two first hydraulic telescopic rods (16) symmetrically arranged on both sides of the port of the silt discharge interface (5). Both of the two first hydraulic telescopic rods (16) are fixedly connected to the side of the mounting plate (4) through a mounting frame. The telescopic ends of the two first hydraulic telescopic rods (16) are both inclined towards the port of the silt discharge interface (5), and an extrusion block (17) is fixed at the telescopic end of each of the two first hydraulic telescopic rods (16). The extrusion block (17) is arc-shaped and corresponds to the port of the silt discharge interface (5).

3. The dredging device for water conservancy projects in river channels according to claim 2, characterized in that, the closing mechanism includes a placement groove (18) arranged below the silt discharge interface (5). The cross-section of the placement groove (18) is U-shaped, and a number of U-shaped iron bars (19) are evenly and correspondingly placed inside the placement groove (18). The mounting plate (4) is provided with a number of rectangular windows (26), and the number of rectangular windows (26) corresponds to the number of placement grooves (18). One end of the placement groove (18) is provided with a first electric push rod (20), and the first electric push rod (20) is fixedly embedded in the mounting plate (4). One end of the first electric push rod (20) is fixed with a push plate (21), and the shape of the push plate (21) matches the shape of the placement groove (18). The end of the placement groove (18) away from the push plate (21) is provided with a second electric push rod (23). The second electric push rod (23) is vertically arranged and fixedly embedded in the corresponding roller mounting frame (12). The telescopic end of the second electric push rod (23) is fixed with a suction cup (24). An air pump matching the suction cup (24) is arranged inside the roller mounting frame (12). The placement groove (18) is provided with an opening matching the suction cup (24). Two second hydraulic telescopic rods (25) are symmetrically arranged at the port of the silt discharge interface (5). Both of the two second hydraulic telescopic rods (25) are fixedly connected to the side surface of the mounting plate (4) through a mounting seat. The telescopic ends of the two second hydraulic telescopic rods (25) are arranged oppositely, and iron bar compression blocks (22) are fixed to the telescopic ends of both of the two second hydraulic telescopic rods (25).

4. The dredging device for water conservancy projects in river channels according to claim 3, characterized in that, the pressing mechanism includes a hydraulic telescopic rod support frame (28) fixed between the mounting plate (4) and the roller mounting frame (12). A third hydraulic telescopic rod (29) is vertically fixed on the hydraulic telescopic rod support frame (28). The telescopic end of the third hydraulic telescopic rod (29) faces downward and is fixed with a pressing frame (30). The pressing frame (30) corresponds to the filter bag (6). Both sides of the pressing frame (30) are inclined downward and a number of rollers (31) are evenly rotatably arranged.

5. The dredging device for water conservancy projects in river channels according to claim 4, characterized in that, the filter bag placement mechanism includes a truss (32) detachably fixed to the side of the moving platform (1). A number of placement plates (33) are evenly rotatably arranged on the truss (32). Partition plates (34) are correspondingly arranged on both sides of the number of placement plates (33). The number of partition plates (34) is fixedly connected to the upper side of the truss (32). The number of placement plates (33) respectively corresponds to the positions of the number of roller mounting frames (12). A number of balls (35) are rotatably embedded on the surface of the placement plate (33). Two fourth hydraulic telescopic rods (36) are symmetrically arranged on the lower side of the placement plate (33). The fourth hydraulic telescopic rods (36) are inclined, and both ends of the fourth hydraulic telescopic rods (36) are respectively rotatably connected to the lower side of the placement plate (33) and the lower end of the truss (32).

6. The dredging device for water conservancy projects in river channels according to claim 5, characterized in that, The sludge suction mechanism includes a suction pipe (37) that penetrates and is fixedly connected to the mounting plate (4). The suction pipe (37) is horizontally arranged, and one end of the suction pipe (37) is bent and fixedly connected to the side wall of the silt discharge interface (5). A third electric push rod (38) is fixed to one end of the suction pipe (37). The third electric push rod (38) is fixedly connected to the mounting plate (4). The telescopic end of the third electric push rod (38) is arranged inside the suction pipe (37), and a push block (51) is coaxially fixed to the telescopic end of the third electric push rod (38). The push block (51) is made of rubber and is slidably matched with the inside of the suction pipe (37).

7. The dredging device for water conservancy projects in rivers according to claim 6, characterized in that, The flocculant delivery assembly includes a vertical pipe (39) located below the suction pipe (37). The upper end of the vertical pipe (39) is fixedly connected to the suction pipe (37). A fourth electric push rod (40) is fixed to the lower end of the vertical pipe (39). The telescopic end of the fourth electric push rod (40) is located inside the vertical pipe (39), and a feed push head (41) is coaxially fixed to the telescopic end of the fourth electric push rod (40). The feed push head (41) is slidably matched with the vertical pipe (39). A flocculant delivery pipe (42) is provided on the side of the vertical pipe (39). The flocculant delivery pipe (42) is inclined, and the upper end of the flocculant delivery pipe (42) is fixedly connected to the side of the vertical pipe (39). A spiral blade (43) is provided inside the flocculant delivery pipe (42). A motor (44) is coaxially fixed to the lower end of the flocculant delivery pipe (42). The motor (44) is coaxially fixed to the spiral blade (43). A flocculant storage hopper (45) is provided above the flocculant delivery pipe (42). The flocculant storage hopper (45) is fixedly connected to the side of the mounting plate (4). The lower end of the flocculant storage hopper (45) is provided with a discharge port, and the discharge port is fixedly connected to the flocculant delivery pipe (42).

8. The dredging device for water conservancy projects in rivers according to claim 1, characterized in that, The sludge pump suction assembly includes a floating boat (46). A stable seat (47) is fixed on the floating boat (46). A mobile vehicle (48) is detachably fixed to the stable seat (47). A sludge pump suction device (49) is fixed on the mobile vehicle (48). The sludge pump suction device (49) is connected to the docking pipe (11) through a delivery hose (50).

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