A sedimentation tank sludge removal device

Abstract

This utility model discloses a sedimentation tank dredging device, comprising a sedimentation tank and a crossbeam mounted on top of it. A first rotating shaft is vertically mounted at the center of the sedimentation tank, and a through hole is opened at the center of the crossbeam, with a first support fixed to its upper end. The bottom of the first rotating shaft is rotatably mounted on the bottom of the sedimentation tank, and the upper end passes through the through hole and is rotatably mounted on the first support. A disc driven wheel is fixedly sleeved on the first rotating shaft above the crossbeam, and the crossbeam is provided with a driving component for driving the driven wheel to rotate. A mounting block is fixed to the lower end of the first rotating shaft, and a slider is vertically slidably mounted on the first rotating shaft above it without rotating. A second rotating shaft is vertically mounted inside the sedimentation tank, with a lead screw section at the lower end, which is screwed through the slider, and rotatably mounted on the mounting block at the bottom. The upper end of the second rotating shaft passes through the through hole and rotatably passes through the disc driven wheel. A second motor is fixed to the upper end of the disc driven wheel, and the top of the second rotating shaft passes through the disc driven wheel and connects to the output shaft of the second motor. Two horizontal crossbars are symmetrically fixed to the side wall of the slider, and rake nails are fixed to the top and bottom of the crossbars respectively.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a sedimentation tank sludge removal device. Background Technology

[0002] After a period of use, pollutants such as suspended solids, organic matter, and heavy metals in the sewage will settle and form a sediment layer. At this time, it is necessary to regularly dredge the sediment layer.

[0003] Traditionally, when dredging sedimentation tanks with water, sludge is removed primarily using an auger or sludge pump. However, the auger's extraction efficiency is too slow, and the sludge in the sediment layer does not automatically flow to lower areas like water, thus requiring constant adjustments to the auger's position. On the other hand, sludge pumps, which directly extract sludge, are prone to clogging due to clumps of sludge.

[0004] Therefore, a sedimentation tank dredging device is designed and installed in the sedimentation tank during construction. When dredging is required, the device can quickly disperse and agitate the sludge at the bottom of the sedimentation tank, facilitating rapid extraction by the sludge pump. Utility Model Content

[0005] The purpose of this invention is to provide a sedimentation tank dredging device to solve the problems described in the background art.

[0006] The technical solution of this utility model is implemented as follows:

[0007] A sedimentation tank sludge removal device includes a sedimentation tank with an open top and a crossbeam at the top of the sedimentation tank. A first rotating shaft is vertically installed at the center of the sedimentation tank. A through hole is opened at the center of the crossbeam. A first support is fixedly installed at the upper end of the crossbeam. The bottom of the first rotating shaft is rotatably installed at the bottom of the sedimentation tank, and the upper end of the first rotating shaft passes upward through the through hole and is rotatably installed in the first support. A disc driven wheel is also fixedly sleeved on the first rotating shaft above the crossbeam. A driving component for driving the disc driven wheel to rotate is also provided on the crossbeam. A mounting block is fixedly sleeved on the lower end of the first rotating shaft. A first... A slider is mounted vertically on a rotating shaft without rotating. A second rotating shaft is also vertically installed in the sedimentation tank. The lower middle end of the second rotating shaft is a lead screw section, which is screwed through the slider. The bottom of the lead screw section is rotatably mounted on the mounting block. The upper end of the second rotating shaft passes upward through a through hole and rotatably passes through a disc driven wheel. A second motor is also fixed at the upper end of the disc driven wheel. The top of the second rotating shaft passes upward through the disc driven wheel and drives the output shaft of the second motor. Two horizontally arranged crossbars are symmetrically fixed on the side wall of the slider. Rake nails are fixed at the top and bottom of the crossbars respectively.

[0008] When using the above scheme, the driving component drives the driven wheel of the disc to rotate, the driven wheel of the disc drives the first rotating shaft to rotate, the first rotating shaft drives the slider, the mounting block and the crossbar to rotate, and the rake nails on the crossbar continuously break up the silt in the sediment layer by rotating, while stirring the silt at the same time.

[0009] Initially, the slider is positioned above the sediment layer. As the first rotating shaft rotates, the second motor gradually controls the rotation of the second rotating shaft. During the rotation, the lower end of the lead screw section drives the slider to gradually descend through a screw connection with the slider. As the slider descends, it also drives the crossbar and rake nails to descend, allowing the rake nails to gradually contact the sediment layer. Starting from the top layer of the sediment layer, the silt is gradually broken up and stirred, and the silt is gradually removed from top to bottom. This avoids the crossbar and rake nails rotating directly inside the sediment layer, reducing the resistance and difficulty of dredging.

[0010] During the process of breaking up and stirring, a sludge pump can be used to extract water from the pool, thereby achieving the purpose of quickly removing sludge and preventing the sludge pump from being blocked by clumps of sludge.

[0011] A further technical solution is that the driving component includes a second bracket and a first motor. The second bracket is fixed to the upper end of the crossbeam, the first motor is fixed to the second bracket, and a driving wheel is fixed on the output shaft of the first motor. The driving wheel and the disc driven wheel are driven together.

[0012] When using the above scheme, the first motor drives the drive wheel to rotate, and the drive wheel drives the driven wheel of the disc to rotate.

[0013] A further technical solution is that the two crossbars are respectively the first crossbar and the second crossbar, the rake nail on the first crossbar is the first rake nail, and the rake nail on the second crossbar is the second rake nail. Both the first rake nail and the second rake nail are composed of multiple vertical bars that are equally spaced apart.

[0014] When using the above scheme, by setting the first and second rakes at equal intervals, the rotation coverage of the rakes can be made more uniform.

[0015] A further technical solution is that the first rake nail rotates around the first rotating shaft as the central axis to form a first group of virtual concentric circles with equal intervals, and the second rake nail rotates around the first rotating shaft as the central axis to form a second group of virtual concentric circles with equal intervals. The second group of virtual concentric circles is nested in the intervals of the first group of virtual concentric circles.

[0016] When using the above scheme, by setting the special positions of the first rake nail and the second rake nail, the first rake nail and the second rake nail on the first crossbar and the second crossbar complement each other, so that the rake nail can more comprehensively cover the sediment layer, and the silt in the sediment layer can be broken up more thoroughly.

[0017] A further technical solution is that the drive wheel is a pulley, and the outer wall of the disc driven wheel is provided with a belt groove, and the drive wheel and the disc driven wheel are connected by a belt.

[0018] A further technical solution is that a limiting groove is vertically formed on the side wall of the first rotating shaft, a first through hole is formed between the upper and lower end faces of the slider, a first limiting block is fixedly provided on the side wall of the first through hole, the first rotating shaft is slidably passed through the first through hole, and the first limiting block is provided in the limiting groove, so that the slider slides vertically up and down on the first rotating shaft without rotating.

[0019] A further technical solution is that a second through hole is provided between the upper and lower end faces of the mounting block, a second limiting block is fixedly provided on the side wall of the second through hole, the first rotating shaft is slidably inserted in the second through hole, the second limiting block is provided in the limiting groove, the side wall of the mounting block is also provided with a first threaded hole communicating with the second through hole, the side wall of the first rotating shaft is also provided with a second threaded hole that mates with the first threaded hole, when the mounting block slides to the point where the first threaded hole and the second threaded hole are aligned, the mounting block is also screwed into the first threaded hole and the second threaded hole by a fastening bolt.

[0020] A further technical solution is that the upper end face of the mounting block is provided with a shaft hole facing downwards, a bearing is provided in the shaft hole, a plug shaft is provided at the bottom of the lead screw section, the plug shaft is inserted into the bearing, and a connecting bolt is screwed to the bottom of the mounting block, with the top of the connecting bolt screwed to the bottom of the plug shaft.

[0021] A further technical solution is that a base is fixed at the bottom of the sedimentation tank, and the bottom of the first rotating shaft is rotatably inserted into the base.

[0022] The beneficial effects of this utility model are as follows:

[0023] 1. Layered dredging reduces resistance: The first rotating shaft drives the slider, mounting block, and crossbar to rotate, while the second motor controls the second rotating shaft to make the slider gradually descend, driving the crossbar and rake nails to gradually remove silt from top to bottom. This avoids the crossbar and rake nails rotating directly inside the sediment layer, significantly reducing dredging resistance and difficulty.

[0024] 2. Reliable driving method: The driving component uses a first motor to drive the drive wheel, which in turn drives the driven disc through belt transmission, thereby driving the first rotating shaft to rotate. This driving method has a simple structure, smooth transmission, and high reliability.

[0025] 3. Uniform distribution of rake spikes for comprehensive dredging: The rake spikes are evenly spaced, and the first and second rake spikes rotate around the first rotating axis to form complementary virtual concentric circles, making the rotation coverage of the rake spikes more uniform and able to more comprehensively cover the sediment layer, so that the silt is broken up more thoroughly.

[0026] 4. Combined dredging and mud pumping: During the process of breaking up and stirring the sludge, a mud pump can be used to pump out the pool water, so as to quickly remove the sludge and prevent the mud pump from being blocked by clumps of sludge, thus improving the dredging efficiency. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0028] Figure 2 for Figure 1 Top view;

[0029] Figure 3 for Figure 2 View with parts of the first and second supports hidden;

[0030] Figure 4 for Figure 1 Enlarged view at point B in the middle;

[0031] Figure 5 for Figure 1 A sectional view along line AA.

[0032] Figure 6 for Figure 4 A cross-sectional view along the CC line.

[0033] In the diagram, 1. Sedimentation tank, 2. Crossbeam, 3. Through hole, 4. First support, 5. First rotating shaft, 6. Second support, 7. First motor, 8. Drive wheel, 9. Disc driven wheel, 10. Second motor, 11. Second rotating shaft, 12. Lead screw section, 13. First crossbar, 14. Second crossbar, 15. First rake nail, 16. Second rake nail, 17. Sliding block, 18. Base, 19. Mounting block, 20. Shaft hole, 21. Bearing, 22. Insert shaft, 23. Limiting groove, 24. First limiting block, 25. First through hole, 26. Second through hole, 27. Second limiting block, 28. Fastening bolt, 29. First threaded hole, 30. Second threaded hole. Detailed Implementation

[0034] To better understand the technical content of this utility model, specific embodiments are provided below, and the utility model will be further described in conjunction with the accompanying drawings.

[0035] See Figures 1 to 6A sludge removal device for a sedimentation tank 1 includes a sedimentation tank 1 with an open top and a crossbeam 2 at the top of the sedimentation tank 1. A first rotating shaft 5 is vertically installed at the center of the sedimentation tank 1. A through hole 3 is opened at the center of the crossbeam 2. A first support 4 is fixedly installed at the upper end of the crossbeam 2. The bottom of the first rotating shaft 5 is rotatably installed at the bottom of the sedimentation tank 1. The upper end of the first rotating shaft 5 passes upward through the through hole 3 and is rotatably installed in the first support 4. A disc driven wheel 9 is also fixedly sleeved on the first rotating shaft 5 above the crossbeam 2. A driving component for driving the disc driven wheel 9 to rotate is also provided on the crossbeam 2. A mounting block 19 is fixedly sleeved on the lower end of the first rotating shaft 5. The first rotating shaft 5 is mounted above the mounting block 19. A slider 17 is vertically mounted on the sedimentation tank 1 without rotating. A second rotating shaft 11 is also vertically mounted in the sedimentation tank 1. The lower middle end of the second rotating shaft 11 is a lead screw section 12, which is screwed through the slider 17. The bottom of the lead screw section 12 is rotatably mounted on the mounting block 19. The upper end of the second rotating shaft 11 passes upward through the through hole 3 and rotatably passes through the driven wheel 9 of the disc. A second motor 10 is also fixed at the upper end of the driven wheel 9 of the disc. The top of the second rotating shaft 11 passes upward through the driven wheel 9 of the disc and drives the output shaft of the second motor 10. Two horizontally arranged crossbars are also symmetrically fixed on the side wall of the slider 17. Rake nails are also fixed at the top and bottom of the crossbars respectively.

[0036] Specifically, the driving component includes a second bracket 6 and a first motor 7. The second bracket 6 is fixed to the upper end of the crossbeam 2, and the first motor 7 is fixed to the second bracket 6. A drive wheel 8 is fixed on the output shaft of the first motor 7, and the drive wheel 8 and the disc driven wheel 9 are driven together.

[0037] Specifically, the drive wheel 8 is a belt pulley, and the outer wall of the disc driven wheel 9 is provided with a belt groove. The drive wheel 8 and the disc driven wheel 9 are connected by a belt.

[0038] Specifically, the two crossbars are the first crossbar 13 and the second crossbar 14, the rake nail on the first crossbar 13 is the first rake nail 15, and the rake nail on the second crossbar 14 is the second rake nail 16. The first rake nail 15 and the second rake nail 16 are both composed of multiple vertical bars that are equally spaced.

[0039] Specifically, the first rake nail 15 rotates around the first rotating shaft 5 as the central axis to form a first group of virtual concentric circles with equal intervals, and the second rake nail 16 rotates around the first rotating shaft 5 as the central axis to form a second group of virtual concentric circles with equal intervals. The second group of virtual concentric circles is nested in the intervals of the first group of virtual concentric circles.

[0040] Specifically, a limiting groove 23 is vertically formed on the side wall of the first rotating shaft 5, and a first through hole 25 is formed between the upper and lower end faces of the slider 17. A first limiting block 24 is fixedly provided on the side wall of the first through hole 25. The first rotating shaft 5 is slidably inserted into the first through hole 25, and the first limiting block 24 is provided in the limiting groove 23, so that the slider 17 slides vertically up and down on the first rotating shaft 5 without rotating.

[0041] Specifically, a second through hole 26 is provided between the upper and lower end faces of the mounting block 19. A second limiting block 27 is fixedly provided on the side wall of the second through hole 26. The first rotating shaft 5 is slidably inserted in the second through hole 26. The second limiting block 27 is provided in the limiting groove 23. A first threaded hole 29 communicating with the second through hole 26 is also provided on the side wall of the mounting block 19. A second threaded hole 30 cooperating with the first threaded hole 29 is also provided on the side wall of the first rotating shaft 5. When the mounting block 19 slides to the point where the first threaded hole 29 and the second threaded hole 30 are aligned, the mounting block 19 is also screwed to the first threaded hole 29 and the second threaded hole 30 by fastening bolts 28.

[0042] Specifically, the upper end face of the mounting block 19 is provided with a shaft hole 20, a bearing 21 is provided in the shaft hole 20, the bottom of the lead screw section 12 is provided with a plug shaft 22, the plug shaft 22 is inserted into the bearing 21, and a connecting bolt is screwed to the bottom of the mounting block 19, the top of the connecting bolt is screwed to the bottom of the plug shaft 22.

[0043] Specifically, a base 18 is fixedly installed at the bottom of the sedimentation tank 1, and the bottom of the first rotating shaft 5 is rotatably inserted into the base 18.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sedimentation tank sludge removal device, characterized in that: The system includes a sedimentation tank with an open top and a crossbeam at the top of the sedimentation tank. A first rotating shaft is vertically positioned at the center of the sedimentation tank. A through hole is formed at the center of the crossbeam. A first support is fixed to the upper end of the crossbeam. The bottom of the first rotating shaft is rotatably mounted on the bottom of the sedimentation tank, and the upper end of the first rotating shaft passes upward through the through hole and is rotatably mounted in the first support. A disc-shaped driven wheel is also fixedly fitted on the first rotating shaft above the crossbeam. A drive component for driving the disc-shaped driven wheel to rotate is also provided on the crossbeam. A mounting block is fixedly fitted to the lower end of the first rotating shaft. A vertical shaft is mounted on the first rotating shaft above the mounting block. The slide block is mounted in a straight, non-rotating manner. A second rotating shaft is also vertically installed in the sedimentation tank. The lower middle end of the second rotating shaft is a lead screw section, which is screwed through the slide block. The bottom of the lead screw section is rotatably mounted on the mounting block. The upper end of the second rotating shaft passes upward through the through hole and rotatably passes through the driven disc wheel. A second motor is also fixed at the upper end of the driven disc wheel. The top of the second rotating shaft passes upward through the driven disc wheel and drives the output shaft of the second motor. Two horizontally arranged crossbars are also symmetrically fixed on the side wall of the slide block. Rake nails are fixed at the top and bottom of the crossbars respectively.

2. The sedimentation tank sludge removal device according to claim 1, characterized in that: The driving component includes a second bracket and a first motor. The second bracket is fixed to the upper end of the crossbeam, and the first motor is fixed to the second bracket. A drive wheel is fixed on the output shaft of the first motor, and the drive wheel and the disc driven wheel are driven together.

3. The sedimentation tank sludge removal device according to claim 2, characterized in that: The two crossbars are the first crossbar and the second crossbar, the rake nail on the first crossbar is the first rake nail, and the rake nail on the second crossbar is the second rake nail. Both the first rake nail and the second rake nail are composed of multiple vertical bars that are equally spaced apart.

4. The sedimentation tank sludge removal device according to claim 3, characterized in that: The first rake nail rotates around the first pivot axis to form a first set of virtual concentric circles with equal intervals. The second rake nail rotates around the first pivot axis to form a second set of virtual concentric circles with equal intervals. The second set of virtual concentric circles is nested within the intervals of the first set of virtual concentric circles.

5. A sedimentation tank sludge removal device according to any one of claims 2-4, characterized in that: The drive wheel is a belt pulley, and the outer wall of the disc driven wheel has a belt groove. The drive wheel and the disc driven wheel are connected by a belt.

6. The sedimentation tank sludge removal device according to claim 5, characterized in that: A limiting groove is vertically formed on the side wall of the first rotating shaft, and a first through hole is formed between the upper and lower end faces of the slider. A first limiting block is fixed on the side wall of the first through hole. The first rotating shaft slides through the first through hole, and the first limiting block is set in the limiting groove, so that the slider slides vertically up and down on the first rotating shaft without rotating.

7. The sedimentation tank sludge removal device according to claim 6, characterized in that: A second through hole is provided between the upper and lower end faces of the mounting block. A second limiting block is fixedly provided on the side wall of the second through hole. The first rotating shaft slides through the second through hole. The second limiting block is provided in the limiting groove. A first threaded hole communicating with the second through hole is also provided on the side wall of the mounting block. A second threaded hole that mates with the first threaded hole is also provided on the side wall of the first rotating shaft. When the mounting block slides to the point where the first threaded hole and the second threaded hole are aligned, the mounting block is also screwed into the first threaded hole and the second threaded hole by a fastening bolt.

8. The sedimentation tank sludge removal device according to claim 7, characterized in that: The upper end face of the mounting block is also provided with a shaft hole facing downwards, and a bearing is provided in the shaft hole. The bottom of the lead screw section is provided with a plug shaft, which is inserted into the bearing. The bottom of the mounting block is also screwed with a connecting bolt, and the top of the connecting bolt is screwed to the bottom of the plug shaft.

9. A sedimentation tank sludge removal device according to claim 1, characterized in that: The bottom of the sedimentation tank is fixedly equipped with a base, and the bottom of the first rotating shaft is inserted into the base.

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