Water conservancy project foundation pit high-water-content sludge dewatering treatment device

Abstract

The invention discloses a water conservancy project foundation pit high-water-content sludge dewatering treatment device, and relates to the technical field of sludge treatment.The water conservancy project foundation pit high-water-content sludge dewatering treatment device comprises a water storage tank, a water filtering hopper is fixedly connected to the top of the water storage tank, a material storage tank is fixedly connected to the top of the water filtering hopper, a fixing frame is arranged on the outer side of the water storage tank, and a top frame is fixedly connected to the top of the fixing frame; a fixed cylinder is fixedly connected to the top of the top frame, a rotating cylinder is rotatably connected to the interior of the fixed cylinder, a reciprocating threaded rod is arranged in the rotating cylinder, a connecting flange is fixedly connected to the bottom end of the reciprocating threaded rod, a rotating rod is fixedly connected to the interior of the rotating cylinder, and a lifting hopper is fixedly connected to the bottom end of the rotating rod; according to the water conservancy project foundation pit high-water-content sludge dewatering treatment device, the primary dewatering efficiency of foundation pit sludge is greatly improved, and the problem that natural draining of high-water-content sludge is slow is solved.

Description

Technical Field

[0001] This invention relates to the field of sludge treatment technology, specifically a dewatering treatment device for high-moisture-content sludge from hydraulic engineering foundation pits. Background Technology

[0002] Sludge dewatering is a core step in the treatment of sludge from water conservancy project foundation pits and the disposal of municipal sludge. High-moisture sludge, after dewatering, can have its volume significantly reduced, facilitating transportation, backfilling, and resource utilization, directly impacting construction efficiency and environmental compliance. Sludge from water conservancy project foundation pits is characterized by high moisture content, high fluidity, and a tendency to clump and accumulate, placing high demands on the treatment efficiency, dewatering effect, and automation level of dewatering equipment.

[0003] Existing sludge dewatering devices mostly adopt single extrusion, natural drainage or belt filter press modes, which have problems such as single function, fragmented dewatering process, easy sludge accumulation and blockage, and insufficient deep dewatering effect, making it difficult to meet the needs of continuous and efficient treatment of sludge with high water content in the foundation pit.

[0004] In the prior art, Chinese Patent No. CN120535173A discloses a sludge dewatering device and a sludge dewatering system, including a sludge dewatering machine. The top of the sludge dewatering machine is provided with a feed hopper, and a belt filter press is provided inside the sludge dewatering machine. An anti-stacking component is fixedly connected to the right side of the sludge dewatering machine. The anti-stacking component includes a support plate, a fixing plate, a motor, a turntable, a transmission column, a transmission plate, a connecting rod, and a pusher plate.

[0005] The aforementioned patent only achieves dewatering through belt filter press, possessing only basic filter press and anti-accumulation functions. It does not integrate the functions of preliminary sludge compression, automatic feeding and transfer, and dual deep dewatering through centrifugal shaking. Therefore, it cannot perform integrated and efficient treatment of sludge with high water content throughout the entire process. The water content of the sludge after dewatering is still relatively high, and the treatment effect and applicability are limited. Summary of the Invention

[0006] The purpose of this invention is to provide a dewatering treatment device for high water content sludge in water conservancy engineering foundation pits, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a dewatering treatment device for high-moisture-content sludge in a water conservancy engineering foundation pit, comprising a water storage tank, a filter bucket fixedly connected to the top of the water storage tank, a material storage tank fixedly connected to the top of the filter bucket, a fixed frame provided on the outside of the water storage tank, a top frame fixedly connected to the top of the fixed frame, a fixed cylinder fixedly connected to the top of the top frame, a rotating cylinder rotatably connected inside the fixed cylinder, a reciprocating threaded rod provided inside the rotating cylinder, a connecting flange fixedly connected to the bottom end of the reciprocating threaded rod, a rotating rod fixedly connected inside the rotating cylinder, the rotating rod passing through the reciprocating threaded rod and movably connected to the reciprocating threaded rod, the rotating rod passing through the filter bucket and rotatably connected to the filter bucket, a lifting hopper fixedly connected to the bottom end of the rotating rod, a material inlet provided on both sides of the lifting hopper, a pressing shovel fixedly connected to both sides of the lifting hopper at the material inlet, and the rotating rod passing through the lifting hopper and movably connected to the lifting hopper.

[0008] Preferably, the bottom end of the rotating rod is fixedly connected to an auger via a one-way end face bearing, the bottom of the filter bucket is fixedly connected to a conveying pipe, the bottom end of the conveying pipe is fixedly connected to a feeding base, the auger is rotatably connected inside the conveying pipe, and the conveying pipe is located inside the water storage tank.

[0009] Preferably, a forward and reverse motor is fixedly connected to the top of the fixed cylinder. The output end of the forward and reverse motor passes through the top wall of the fixed cylinder and is rotatably connected to the fixed cylinder. The output end of the forward and reverse motor is fixedly connected to the top of the rotating cylinder. Guide plates are integrally formed on both sides of the interior of the rotating cylinder. Guide grooves are opened on both sides of the reciprocating threaded rod. The two guide plates are slidably connected to the two guide grooves and are adapted to the two guide grooves. A one-way bearing is fixedly connected inside the top frame. A limit sleeve is fixedly connected inside the one-way bearing. The reciprocating threaded rod passes through the limit sleeve and is threadedly connected to the limit sleeve. The guide plates limit and guide the guide grooves, thereby driving the reciprocating threaded rod to rotate with the rotating cylinder. The limit sleeve limits the reciprocating threaded rod in one direction, so that the reciprocating threaded rod rotates and moves up and down when rotating counterclockwise, and only rotates when rotating clockwise.

[0010] Preferably, a material conveying box is fixedly connected to both sides of the bottom of the top frame, a scraper is fixedly connected to the bottom of each of the two material conveying boxes, a guide pipe is fixedly connected to one side of the scraper, the scraper is adapted to the inside of the lifting hopper, and a telescopic pipe is fixedly connected to one side of each of the two guide pipes.

[0011] Preferably, a drain tube is provided on both sides of the fixing frame, and a rotating shaft and a feeding pipe are fixedly connected to both ends of the drain tube, respectively. A first sliding plate is rotatably connected to the outside of the rotating shaft, and a second sliding plate is rotatably connected to the outside of the feeding pipe. The first sliding plate and the second sliding plate are slidably connected to the inside of the fixing frame on both sides.

[0012] Preferably, a support plate is fixedly connected to one side of the fixed frame, and a transmission rod is rotatably connected inside the support plate. A rotating sleeve is rotatably connected inside the first sliding plate. Vertical grooves are provided on both sides of the rotating sleeve. Vertical rods are fixedly connected to both sides of the transmission rod. The vertical rods are slidably connected inside the vertical grooves and adapted to the vertical grooves. When the transmission rod passes through the rotating sleeve and is slidably connected to the rotating sleeve, the transmission rod drives the rotating sleeve to rotate when rotating.

[0013] Preferably, a fourth bevel gear is fixedly connected to one end of the rotating shaft, a third bevel gear is fixedly connected to the bottom of the rotating sleeve, the third bevel gear meshes with the fourth bevel gear, a connecting rod is rotatably connected inside the fixed frame, a first bevel gear is fixedly connected to one end of the connecting rod, a second bevel gear is fixedly connected to the outside of the transmission rod, the second bevel gear meshes with the first bevel gear, a servo motor is fixedly connected to the top of the fixed frame away from the support plate, a guide gear is fixedly connected to the output end of the servo motor, and a transmission gear is fixedly connected to the end of the connecting rod away from the first bevel gear. The guide gear meshes with the transmission gear, so that when the servo motor starts, it drives the guide gear to rotate, the guide gear drives the transmission gear to rotate, and the connecting rod to rotate.

[0014] Preferably, a cam is fixedly connected to the outer side of the middle part of the connecting rod, a connecting frame is fixedly connected to the top of the first and second sliding plates, a support wheel is rotatably connected to the top of the connecting frame, the cam is in contact with the support wheel, so that the connecting rod drives the cam to rotate, and the cam pushes the support wheel to move up and down.

[0015] Preferably, tension springs are fixedly connected to both sides of the top of the connecting frame, and fixing blocks are fixedly connected to the top of each of the two tension springs. The two fixing blocks are respectively fixedly connected to both sides of the fixing frame to support and pull the connecting frame.

[0016] Preferably, the bottom end of the telescopic pipe is connected to the feed pipe to facilitate the transfer of mud, and a baffle is installed on one side of the drain cylinder to discharge the dehydrated mud.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. This device uses a forward and reverse motor to drive a rotating cylinder, which in turn drives a reciprocating threaded rod to rotate. With the help of a one-way bearing and a limit sleeve, the reciprocating threaded rod rotates and lifts in one direction, driving the lifting hopper and pressing shovel to complete the sludge spreading and squeezing operations. It can quickly squeeze out the water inside the sludge, and after being filtered by the water filter, it is collected by the water storage tank. This greatly improves the initial dewatering efficiency of the sludge in the pit and solves the problem of slow natural drainage of sludge with high water content. It integrates the initial squeezing and dewatering of sludge, automatic feeding and transfer, and deep centrifugal drainage into one unit. Through the cooperation of multiple components, it achieves efficient dewatering treatment of sludge with high water content. It has a high degree of automation, good dewatering effect, and stable structure.

[0018] 2. The device of this application relies on the rotating rod to drive the auger to rotate, and in conjunction with the conveying pipe and the feeding base, it realizes automatic sludge feeding. The lifting hopper, together with the scraper and the guide pipe, completes the sludge transfer. No manual intervention is required throughout the process, reducing manpower input. At the same time, the telescopic pipe is adapted to the lifting and displacement of the draining cylinder to ensure the continuity of sludge transportation.

[0019] 3. The servo motor drives the connecting rod to rotate the cam, which, together with the support wheel, connecting frame and tension spring, makes the draining cylinder swing up and down. At the same time, the bevel gear set drives the draining cylinder to rotate. The dual motion greatly enhances the deep dewatering effect of sludge, reduces the final moisture content of sludge, and meets the sludge treatment standards of water conservancy projects. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the top frame structure of the present invention; Figure 3 This is a schematic diagram of the structure of the storage box of the present invention; Figure 4 This is a schematic diagram of the structure of the filter bucket of the present invention; Figure 5 This is a schematic diagram of the material conveying pipe of the present invention; Figure 6 This is a schematic diagram of the lifting hopper of the present invention; Figure 7 This is a schematic diagram of the reciprocating threaded rod of the present invention; Figure 8 This is a schematic diagram of the rotating rod of the present invention; Figure 9 This is a schematic diagram of the structure of the guide plate of the present invention; Figure 10 This is a schematic diagram of the material conveying box of the present invention; Figure 11 This is a schematic diagram of the scraper plate of the present invention; Figure 12 This is a schematic diagram of the structure of the fixing frame of the present invention; Figure 13 This is a schematic diagram of the transmission rod of the present invention; Figure 14 This is a schematic diagram of the connecting frame of the present invention; Figure 15 This is a schematic diagram of the structure of the drain cylinder of the present invention.

[0021] Labels in the diagram: 1. Water storage tank; 2. Filter hopper; 3. Material storage box; 4. Fixed frame; 5. Top frame; 6. Fixed cylinder; 7. Rotating cylinder; 8. One-way bearing; 9. Limit sleeve; 10. Reciprocating threaded rod; 11. Connecting flange; 12. Rotating rod; 13. Lifting hopper; 14. Feed inlet; 15. Pressing shovel; 16. Conveying pipe; 17. Screwdriver; 18. Feeding base; 19. Guide plate; 20. Guide groove; 21. Conveying box; 22. Scraper; 23. Guide pipe; 24. Draining cylinder; 25. Rotating cylinder. 26. Shaft; 27. Feed pipe; 28. First slide plate; 29. ​​Second slide plate; 30. Support plate; 31. Transmission rod; 32. Connecting rod; 33. Cam; 34. Connecting frame; 35. Support wheel; 36. Tension spring; 37. First bevel gear; 38. Second bevel gear; 39. Rotating sleeve; 40. Third bevel gear; 41. Fourth bevel gear; 42. Servo motor; 43. Guide gear; 44. Transmission gear; 45. Telescopic tube; 46. Forward and reverse motor; 47. Vertical rod; 48. Vertical groove; 49. Fixing block. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example: Figures 1-15As shown, the present invention provides a technical solution for a dewatering treatment device for high-moisture-content sludge in a hydraulic engineering foundation pit, comprising a water storage tank 1, a filter bucket 2 fixedly connected to the top of the water storage tank 1, a storage tank 3 fixedly connected to the top of the filter bucket 2, a fixing frame 4 provided on the outside of the water storage tank 1, a top frame 5 fixedly connected to the top of the fixing frame 4, a fixing cylinder 6 fixedly connected to the top of the top frame 5, a rotating cylinder 7 rotatably connected inside the fixing cylinder 6, a reciprocating threaded rod 10 provided inside the rotating cylinder 7, a connecting flange 11 fixedly connected to the bottom end of the reciprocating threaded rod 10, and a fixed... A rotating rod 12 is connected, passing through and movably connected to a reciprocating threaded rod 10. The rotating rod 12 also passes through and rotatably connects to a water filter hopper 2. A lifting hopper 13 is fixedly connected to the bottom of the rotating rod 12. Feed inlets 14 are provided on both sides of the lifting hopper 13, and pressing plates 15 are fixedly connected to both sides of the lifting hopper 13 at the feed inlets 14. The rotating rod 12 passes through and movably connects to the lifting hopper 13. An auger 17 is fixedly connected to the bottom of the rotating rod 12 via a one-way end face bearing. A conveying pipe is fixedly connected to the bottom of the water filter hopper 2. 16. A feeding base 18 is fixedly connected to the bottom end of the conveying pipe 16. An auger 17 is rotatably connected to the inside of the conveying pipe 16. The conveying pipe 16 is located inside the water storage tank 1. A forward and reverse motor 45 is fixedly connected to the top end of the fixed cylinder 6. The output end of the forward and reverse motor 45 passes through the top wall of the fixed cylinder 6 and is rotatably connected to the fixed cylinder 6. The output end of the forward and reverse motor 45 is fixedly connected to the top end of the rotating cylinder 7. Guide plates 19 are integrally formed on both sides inside the rotating cylinder 7. Guide grooves 20 are opened on both sides of the reciprocating threaded rod 10. The two guide plates 19 are slidably connected to the two guides respectively. The groove 20 is adapted to the two guide grooves 20. The top frame 5 is fixedly connected to a one-way bearing 8. The one-way bearing 8 is fixedly connected to a limit sleeve 9. The reciprocating threaded rod 10 passes through the limit sleeve 9 and is threadedly connected to the limit sleeve 9. The guide plate 19 limits and guides the guide groove 20, thereby driving the reciprocating threaded rod 10 to rotate with the rotating cylinder 7. The limit sleeve 9 limits the reciprocating threaded rod 10 in one direction, so that the reciprocating threaded rod 10 rotates and moves up and down when viewed from above in a counterclockwise rotation, and only rotates in a clockwise rotation.

[0024] Material conveying boxes 21 are fixedly connected to both sides of the bottom of the top frame 5. Scraper blades 22 are fixedly connected to the bottom of each of the two material conveying boxes 21. A guide pipe 23 is fixedly connected to one side of each scraper blade 22. The scraper blades 22 are adapted to the interior of the lifting hopper 13. Telescopic pipes 44 are fixedly connected to one side of each of the two guide pipes 23. Drainage cylinders 24 are installed on both sides of the fixed frame 4. A rotating shaft 25 and a feed pipe 26 are fixedly connected to both ends of each drainage cylinder 24. A first sliding plate 27 is rotatably connected to the outside of the rotating shaft 25. The feed pipe 26... A second sliding plate 28 is rotatably connected to the outer side of the 6th plate. The first sliding plate 27 and the second sliding plate 28 are slidably connected to the inner sides of the fixed frame 4, respectively. A support plate 29 is fixedly connected to one side of the fixed frame 4. A transmission rod 30 is rotatably connected inside the support plate 29. A rotating sleeve 38 is rotatably connected inside the first sliding plate 27. Vertical grooves 47 are provided on both sides of the rotating sleeve 38. Vertical rods 46 are fixedly connected to both sides of the transmission rod 30. The vertical rods 46 are slidably connected inside the vertical grooves 47 and are adapted to the vertical grooves 47. The transmission rod 3... When the transmission rod 30 passes through the rotating sleeve 38 and slides in connection with it, it drives the rotating sleeve 38 to rotate. One end of the rotating shaft 25 is fixedly connected to the fourth bevel gear 40, and the bottom of the rotating sleeve 38 is fixedly connected to the third bevel gear 39. The third bevel gear 39 meshes with the fourth bevel gear 40. The fixed frame 4 is rotatably connected to the inside of the fixed frame 4. One end of the connecting rod 31 is fixedly connected to the first bevel gear 36, and the outside of the transmission rod 30 is fixedly connected to the second bevel gear 37. The second bevel gear 37 meshes with the first bevel gear 36. The top of the fixed frame 4 is fixedly connected to the side away from the support plate 29. The output end of the servo motor 41 is fixedly connected to the guide gear 42. The end of the connecting rod 31 away from the first bevel gear 36 is fixedly connected to the transmission gear 43. The guide gear 42 meshes with the transmission gear 43, so that when the servo motor 41 starts, it drives the guide gear 42 to rotate, which in turn drives the transmission gear 43 to rotate and the connecting rod 31 to rotate.

[0025] A cam 32 is fixedly connected to the outer side of the middle part of the connecting rod 31. A connecting frame 33 is fixedly connected to the top of the first slide plate 27 and the second slide plate 28. A support wheel 34 is rotatably connected to the top of the connecting frame 33. The cam 32 is in contact with the support wheel 34, so that the connecting rod 31 drives the cam 32 to rotate, and the cam 32 pushes the support wheel 34 to move up and down. Tension springs 35 are fixedly connected to both sides of the top of the connecting frame 33. Fixing blocks 48 are fixedly connected to the top of the two tension springs 35. The two fixing blocks 48 are fixedly connected to both sides of the fixing frame 4 respectively, supporting and pulling the connecting frame 33. The bottom end of the telescopic pipe 44 is connected to the feed pipe 26 to facilitate the transmission of mud. A baffle is installed on one side of the drain cylinder 24 to discharge the dewatered mud.

[0026] In this design, a corrugated pipe protective sleeve can be installed between the top frame 5 and the connecting flange 11 to protect the reciprocating threaded rod 10. The device is then erected in the pit. The clockwise rotation of the forward and reverse motor 45 drives the rotating drum 7, which in turn drives the rotating rod 12. When the rotating rod 12 rotates, it drives the auger 17, which pumps the slurry upwards from the bottom. The slurry then flows along the conveying pipe 16 into the filter hopper 2 and accumulates. Simultaneously, water in the slurry leaks from the bottom of the filter hopper 2 and is collected in the water storage tank 1. A water pump then removes the wastewater. Simultaneously, the rotating drum 7 drives the reciprocating threaded rod 10 to rotate synchronously. When the clockwise rotation occurs, the inner and outer rings of the one-way bearing 8 lock and fix the limiting sleeve 9, so that the limiting sleeve 9 limits and guides the reciprocating threaded rod 10. When the reciprocating threaded rod 10 rotates clockwise, it moves up and down. The reciprocating threaded rod 10 drives the connecting flange 11 and the lifting hopper 13 to rotate and descend. When it descends to the preset position, the forward and reverse motor 45 is started clockwise, so that the reciprocating threaded rod 10 can only rotate in this rotation direction and cannot move up and down. The reciprocating threaded rod 10 drives the lifting hopper 13 to rotate clockwise, so that the lifting hopper 13 drives the two pressing shovels 15 to rotate counterclockwise, and the inclined surfaces of the two pressing shovels 15 spread and squeeze the mud, squeezing the water downward and increasing the drainage effect.

[0027] After drainage, the forward and reverse motors 45 are started counterclockwise again, and the reciprocating threaded rod 10 drives the lifting hopper 13 and the two pressing shovels 15 to rotate clockwise and descend, scraping the sludge and shoveling the initially drained sludge into the lifting hopper 13 for storage. After the lifting hopper 13 descends to the bottom, it rises, carrying the sludge to the position of the two conveying boxes 21, where the scraper 22 shovels the sludge. The sludge enters the guide pipe 23 for storage along the inclined surface of the scraper 22 and the guide of the conveying box 21. The device relies on the rotating rod 12 to drive the auger 17 to rotate, and works with the conveying pipe 16 and the feeding base 18 to realize automatic sludge feeding. The lifting hopper 13, together with the scraper 22 and the guide pipe 23, completes the sludge transfer. No manual intervention is required throughout the process, reducing manpower input. At the same time, the telescopic pipe 44 is adapted to the lifting and displacement of the draining cylinder 24 to ensure the continuity of sludge transportation.

[0028] Feed pumps are installed on both sides of the fixed frame 4 and connected to the telescopic pipe 44. The feed pumps transport the sludge inside the guide pipe 23 into the telescopic pipe 44 and into the drain cylinder 24. After the sludge accumulates inside the drain cylinder 24, it is drained. The servo motor 41 starts and drives the guide gear 42 to rotate. The guide gear 42 drives the transmission gear 43 to rotate. When the transmission gear 43 rotates, it drives the connecting rod 31 and the cam 32 to rotate. The cam 32 pushes the support wheel 34 to move back and forth. The tension of the fixed block 48 on the connecting frame 33 causes the connecting frame 33 to jump up and down. At the same time, when the connecting rod 31 rotates, it drives the first bevel gear 36 to rotate and drives the second bevel gear 37 to rotate. The rotation of the second bevel gear 37 drives the transmission rod 30 to rotate, which in turn drives the rotating sleeve 38 and the third bevel gear 39 to rotate. When the third bevel gear 39 rotates, it drives the fourth bevel gear 40 and the rotating shaft 25 to rotate, ultimately driving the draining cylinder 24 to rotate synchronously. This causes the draining cylinder 24 to sway up and down during rotation, improving the drainage effect and allowing residual water from the sludge to be discharged. As the draining cylinder 24 moves up and down, the low-profile first sliding plate 27 and the second sliding plate 28 slide up and down inside the fixed frame 4, and the first sliding plate 27 drives the rotating sleeve 38 to slide up and down outside the transmission rod 30. This causes the vertical rod 46 to limit and guide the vertical groove 47, maintaining the transmission to the rotating sleeve 38. The motor 41... The drive connecting rod 31 drives the cam 32 to rotate, which, together with the support wheel 34, the connecting frame 33 and the tension spring 35, makes the draining cylinder 24 swing up and down. At the same time, the draining cylinder 24 rotates by the transmission of the bevel gear set. The dual motion greatly enhances the deep dewatering effect of sludge, reduces the final moisture content of sludge, and meets the sludge treatment standards of water conservancy projects.

[0029] This device drives the rotating cylinder 7 via a forward and reverse motor 45, which in turn drives the reciprocating threaded rod 10 to rotate. Combined with a one-way bearing 8 and a limiting sleeve 9, the reciprocating threaded rod 10 rotates and lifts in one direction, driving the lifting hopper 13 and the pressing shovel 15 to complete the sludge spreading and pressing operations. This quickly squeezes out the internal moisture of the sludge, which is then filtered by the water filter hopper 2 and collected by the water storage tank 1. This significantly improves the initial dewatering efficiency of the sludge in the foundation pit, solving the problem of slow natural drainage of high-moisture sludge. It integrates initial sludge pressing and dewatering, automatic feeding and transfer, and deep centrifugal dewatering into one unit. Through the coordinated operation of multiple components, it achieves efficient dewatering of high-moisture sludge, exhibiting a high degree of automation, good dewatering effect, and stable structure.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A dewatering treatment device for high-moisture-content sludge in a water conservancy project foundation pit, comprising a water storage tank (1), characterized in that: A filter bucket (2) is fixedly connected to the top of the water storage tank (1), and a storage box (3) is fixedly connected to the top of the filter bucket (2). A fixed frame (4) is provided on the outside of the water storage tank (1), and a top frame (5) is fixedly connected to the top of the fixed frame (4). A fixed cylinder (6) is fixedly connected to the top of the top frame (5). A rotating cylinder (7) is rotatably connected inside the fixed cylinder (6). A reciprocating threaded rod (10) is provided inside the rotating cylinder (7). A connecting flange (11) is fixedly connected to the bottom end of the reciprocating threaded rod (10). The rotating cylinder (7) is rotatably connected to the inside of the rotating cylinder (7). A rotating rod (12) is fixedly connected. The rotating rod (12) passes through the reciprocating threaded rod (10) and is movably connected to the reciprocating threaded rod (10). The rotating rod (12) passes through the water filter bucket (2) and is rotatably connected to the water filter bucket (2). A lifting bucket (13) is fixedly connected to the bottom end of the rotating rod (12). A feed inlet (14) is opened on both sides of the lifting bucket (13). A pressing shovel plate (15) is fixedly connected to both sides of the lifting bucket (13) at the feed inlet (14). The rotating rod (12) passes through the lifting bucket (13) and is movably connected to the lifting bucket (13).

2. The device for dewatering high-moisture-content sludge in a water conservancy project foundation pit according to claim 1, characterized in that: The bottom end of the rotating rod (12) is fixedly connected to an auger (17) via a one-way end face bearing. The bottom of the filter bucket (2) is fixedly connected to a conveying pipe (16). The bottom end of the conveying pipe (16) is fixedly connected to a feeding base (18). The auger (17) is rotatably connected inside the conveying pipe (16). The conveying pipe (16) is located inside the water storage tank (1).

3. The device for dewatering high-moisture-content sludge in a water conservancy project foundation pit according to claim 1, characterized in that: The top of the fixed cylinder (6) is fixedly connected to a forward and reverse motor (45). The output end of the forward and reverse motor (45) passes through the top wall of the fixed cylinder (6) and is rotatably connected to the fixed cylinder (6). The output end of the forward and reverse motor (45) is fixedly connected to the top of the rotating cylinder (7). The rotating cylinder (7) has guide plates (19) integrally formed on both sides. The reciprocating threaded rod (10) has guide grooves (20) on both sides. The two guide plates (19) are slidably connected to the two guide grooves (20) and are adapted to the two guide grooves (20). The top frame (5) is fixedly connected to a one-way bearing (8). The one-way bearing (8) is fixedly connected to a limit sleeve (9). The reciprocating threaded rod (10) passes through the limit sleeve (9) and is threadedly connected to the limit sleeve (9).

4. The device for dewatering high-moisture-content sludge in a water conservancy project foundation pit according to claim 1, characterized in that: The top frame (5) is fixedly connected to two bottom sides of a material conveying box (21), and the bottom of the two material conveying boxes (21) is fixedly connected to a scraper (22). A guide pipe (23) is fixedly connected to one side of the scraper (22). The scraper (22) is adapted to the inside of the lifting hopper (13). A telescopic pipe (44) is fixedly connected to one side of the two guide pipes (23).

5. The device for dewatering high-moisture-content sludge in a water conservancy project foundation pit according to claim 4, characterized in that: Both sides of the fixed frame (4) are provided with a drain tube (24). The two ends of the drain tube (24) are respectively fixedly connected to a rotating shaft (25) and a feed pipe (26). The outside of the rotating shaft (25) is rotatably connected to a first sliding plate (27), and the outside of the feed pipe (26) is rotatably connected to a second sliding plate (28). The first sliding plate (27) and the second sliding plate (28) are respectively slidably connected to the inside sides of the fixed frame (4).

6. The device for dewatering high-moisture-content sludge in a water conservancy project foundation pit according to claim 5, characterized in that: A support plate (29) is fixedly connected to one side of the fixed frame (4). A transmission rod (30) is rotatably connected inside the support plate (29). A rotating sleeve (38) is rotatably connected inside the first sliding plate (27). Vertical grooves (47) are provided on both sides of the rotating sleeve (38). Vertical rods (46) are fixedly connected to both sides of the transmission rod (30). The vertical rods (46) are slidably connected inside the vertical grooves (47) and are adapted to the vertical grooves (47). The transmission rod (30) passes through the rotating sleeve (38) and is slidably connected to the rotating sleeve (38).

7. The device for dewatering high-moisture-content sludge in a water conservancy project foundation pit according to claim 6, characterized in that: A fourth bevel gear (40) is fixedly connected to one end of the rotating shaft (25), a third bevel gear (39) is fixedly connected to the bottom of the rotating sleeve (38), the third bevel gear (39) meshes with the fourth bevel gear (40), a connecting rod (31) is rotatably connected inside the fixed frame (4), a first bevel gear (36) is fixedly connected to one end of the connecting rod (31), a second bevel gear (37) is fixedly connected to the outside of the transmission rod (30), the second bevel gear (37) meshes with the first bevel gear (36), a servo motor (41) is fixedly connected to the top of the fixed frame (4) away from the support plate (29), a guide gear (42) is fixedly connected to the output end of the servo motor (41), and a transmission gear (43) is fixedly connected to the end of the connecting rod (31) away from the first bevel gear (36), the guide gear (42) meshes with the transmission gear (43).

8. The device for dewatering high-moisture-content sludge in a water conservancy project foundation pit according to claim 7, characterized in that: A cam (32) is fixedly connected to the outer side of the middle part of the connecting rod (31). A connecting frame (33) is fixedly connected to the top of the first slide plate (27) and the second slide plate (28). A support wheel (34) is rotatably connected to the top of the connecting frame (33). The cam (32) is in contact with the support wheel (34).

9. A dewatering treatment device for high-moisture-content sludge in a water conservancy project foundation pit according to claim 8, characterized in that: The top two sides of the connecting frame (33) are fixedly connected with tension springs (35), and the top of each of the two tension springs (35) is fixedly connected with a fixing block (48). The two fixing blocks (48) are respectively fixedly connected to the two sides of the fixing frame (4).

10. A dewatering treatment device for high-moisture-content sludge in a water conservancy project foundation pit according to claim 5, characterized in that: The bottom end of the telescopic tube (44) is connected to the feed tube (26), and a baffle is installed on one side of the drain tube (24).

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