Domestic sludge dewatering device

Abstract

The utility model relates to the technical field of environmental protection, in particular to a domestic sludge dewatering device which can automatically discharge dewatered sludge through an opening in the right end of a dewatering cylinder, is convenient to use and improves convenience and practicability. Comprising a bottom plate, a support and a barrel, the barrel is fixedly installed at the upper end of the bottom plate through the support, a cavity is formed in the barrel, a drainage pipe communicated with the cavity is arranged on the lower portion of the barrel, and a valve is arranged on the drainage pipe; the device further comprises a dewatering cylinder, a fixed bearing, a sealing cover, a feeding pipe, a driving mechanism and a push-out mechanism, the dewatering cylinder is rotationally installed on the cylinder body, a cavity is formed in the dewatering cylinder, multiple sets of filter holes communicated with the cavity are formed in the dewatering cylinder, and the multiple sets of filter holes are all located in the cavity of the cylinder body.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection, in particular to a domestic sewage sludge dewatering device. Background Art

[0002] A domestic sewage sludge dewatering device is a mechanism for dewatering sludge, which has a wide range of applications in the field of environmental protection. By dewatering the sludge, the volume of the sludge is reduced, facilitating the transportation and further treatment of the sludge. In the prior art, the utility model patent with the patent application number 201821508263.3 discloses a sludge rapid sedimentation and dewatering device, which mainly consists of a water collecting bucket and a dewatering bucket. The dewatering bucket is rotatably installed in the water collecting bucket. When dewatering the sludge, the sludge to be dewatered is added into the dewatering bucket, and then the dewatering bucket rotates at a high speed, so that the sludge in the dewatering bucket is dewatered under the action of centrifugal force, and the water enters the water collecting bucket. The inventor believes that the following problems exist in the use process: after the sludge in the dewatering bucket is dewatered, it cannot automatically discharge the dewatered sludge in the dewatering bucket, which is inconvenient to use and has poor practicability. Summary of the Utility Model

[0003] To solve the above technical problems, the utility model provides a domestic sewage sludge dewatering device that can automatically discharge the dewatered sludge through the opening at the right end of the dewatering cylinder, which is convenient to use and improves the convenience and practicability.

[0004] The domestic sewage sludge dewatering device of the utility model comprises a bottom plate, a bracket and a cylinder body. The cylinder body is fixedly installed at the upper end of the bottom plate through the bracket. A chamber is arranged inside the cylinder body. A drain pipe communicated with the chamber is arranged at the lower part of the cylinder body, and a valve is arranged on the drain pipe. It further comprises a dewatering cylinder, a fixed bearing, a sealing cover, a feeding pipe, a driving mechanism and a pushing mechanism. The dewatering cylinder is rotatably installed on the cylinder body. A cavity is arranged inside the dewatering cylinder. A plurality of groups of filter holes communicated with the cavity are arranged on the dewatering cylinder. All the plurality of groups of filter holes are located in the chamber of the cylinder body. A filter cloth is arranged on the outer side wall of the dewatering cylinder. Both the left and right ends of the dewatering cylinder are open. The sealing cover is installed at the right end of the dewatering cylinder through bolts. The feeding pipe is installed on the sealing cover, and a valve is arranged on the feeding pipe. The dewatering cylinder is rotatably installed on the fixed bearing, and the fixed bearing is fixedly installed in the chamber of the cylinder body. The driving mechanism is used to drive the dewatering cylinder to rotate, and the pushing mechanism is used to push the sludge in the cavity of the dewatering cylinder out and seal the opening at the left end of the dewatering cylinder. When dewatering the sludge, first, the sludge to be dewatered is added into the cavity of the dewatering cylinder through the feeding pipe. Then, the driving mechanism is turned on to make the dewatering cylinder rotate at a high speed. Thus, the sludge in the cavity of the dewatering cylinder is dehydrated under the action of centrifugal force, and the water is discharged into the chamber of the cylinder body through the plurality of groups of filter holes on the dewatering cylinder. Until the sludge in the cavity of the dewatering cylinder is dehydrated, the valve on the drain pipe is opened to discharge the water in the chamber of the cylinder body. Then, the sealing cover is opened, and then the pushing mechanism is opened to push the sludge in the cavity of the dewatering cylinder out through the opening at the right end of the dewatering cylinder. It can automatically discharge the dehydrated sludge through the opening at the right end of the dewatering cylinder, which is convenient to use and improves the convenience and practicability.

[0005] Preferably, the driving mechanism comprises a sprocket A, a chain, a sprocket B, a driving shaft, a fixing plate and a driving motor. The sprocket A is fixedly sleeved on the outer side wall of the dewatering cylinder. The sprocket A is in transmission connection with the sprocket B through the chain. The sprocket B is fixedly installed on the driving shaft. The driving shaft is rotatably installed on the fixing plate. The input end of the driving shaft is connected with the driving motor. Both the driving motor and the fixing plate are fixedly installed on the bottom plate. When rotating the dewatering cylinder, the driving motor is turned on. The driving motor makes the sprocket B rotate through the driving shaft. The sprocket B makes the sprocket A rotate through the chain, and the sprocket A drives the dewatering cylinder to rotate. It is convenient to rotate the dewatering cylinder.

[0006] Preferably, the pushing mechanism includes a push plate, a thrust bearing, a rotating shaft, a push rod, a hydraulic cylinder, and a support frame. A chute is provided in the cavity of the dewatering cylinder. The push plate is slidably mounted left and right on the chute of the dewatering cylinder. The thrust bearing is fixedly mounted at the left end of the push plate. The push plate is used to seal the opening at the left end of the dewatering cylinder. The rotating shaft is rotatably mounted on the thrust bearing. The rotating shaft is coaxial with the dewatering cylinder. The rotating shaft is fixedly mounted at the right end of the push rod. The push rod is slidably mounted left and right on the cylinder body. The left end of the push rod is connected to the output end of the hydraulic cylinder. The hydraulic cylinder is fixedly mounted on the bottom plate through the support frame. When discharging the sludge that has been dewatered in the dewatering cylinder, open the sealing cover, and then open the hydraulic cylinder. The hydraulic cylinder drives the rotating shaft to drive the thrust bearing and the push plate to move to the right through the push rod. During the rightward movement of the push plate, the sludge in the cavity of the dewatering cylinder can be pushed out through the opening at the right end of the dewatering cylinder, which facilitates the discharge of the sludge.

[0007] Preferably, it further includes a vacuum pump and an exhaust pipe. The vacuum pump is fixedly mounted at the upper end of the cylinder body. The input end of the vacuum pump is communicated with the chamber of the cylinder body. An exhaust pipe is provided at the output end of the vacuum pump. When dewatering the sludge in the cavity of the dewatering cylinder, turn on the vacuum pump to reduce the pressure in the chamber of the cylinder body, promote the dewatering of the sludge in the cavity of the dewatering cylinder, and improve the dewatering efficiency.

[0008] Preferably, a handle is provided on the sealing cover. With the above setting, it is convenient to take and place the sealing cover.

[0009] Preferably, the material of the cylinder body is stainless steel. With the above setting, the rusting of the cylinder body is delayed, and the service life of the cylinder body is improved.

[0010] Preferably, a waterproof cover is provided on the drive motor. With the above setting, the waterproof property of the drive motor is improved.

[0011] Compared with the prior art, the beneficial effect of the present utility model is that it can automatically discharge the dewatered sludge through the opening at the right end of the dewatering cylinder, which is convenient to use and improves the convenience and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is the first axonometric structural schematic diagram of the present utility model;

[0013] Figure 2 is the second axonometric structural schematic diagram of the present utility model;

[0014] Figure 3 is the sectional structural schematic diagram of the present utility model;

[0015] Figure 4 is the exploded view of the dewatering cylinder, the sealing cover, the push plate, etc.;

[0016] Figure 5 is the structural schematic diagram of the hydraulic cylinder, the push rod, the dewatering cylinder, etc.

[0017] Reference numerals in the drawings: 1, bottom plate; 2, bracket; 3, cylinder; 4, dehydration cylinder; 5, fixed bearing; 6, sealing cover; 7, feeding pipe; 8, sprocket A; 9, chain; 10, sprocket B; 11, drive shaft; 12, fixing plate; 13, drive motor; 14, push plate; 15, thrust bearing; 16, rotating shaft; 17, push rod; 18, hydraulic cylinder; 19, bracket; 20, vacuum pump; 21, exhaust pipe; 22, handle. Specific implementation manners

[0018] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present utility model more thorough and comprehensive.

[0019] Embodiment 1

[0020] As Figures 1 to 5 shown, the domestic sewage dehydration device of the present utility model includes a bottom plate 1, a bracket 2, a cylinder 3, a dehydration cylinder 4, a fixed bearing 5, a sealing cover 6, a feeding pipe 7, a driving mechanism and a pushing mechanism. The cylinder 3 is fixedly installed at the upper end of the bottom plate 1 through the bracket 2. A chamber is provided inside the cylinder 3. A drain pipe communicating with the chamber is provided at the lower part of the cylinder 3. A valve is provided on the drain pipe. The dehydration cylinder 4 is rotatably installed on the cylinder 3. A cavity is provided inside the dehydration cylinder 4. A plurality of groups of filter holes communicating with the cavity are provided on the dehydration cylinder 4. All the plurality of groups of filter holes are located in the chamber of the cylinder 3. A filter cloth is provided on the outer side wall of the dehydration cylinder 4. Both the left and right ends of the dehydration cylinder 4 are provided with openings. The sealing cover 6 is installed on the right end of the dehydration cylinder 4 through bolts. The feeding pipe 7 is installed on the sealing cover 6. A valve is provided on the feeding pipe 7. The dehydration cylinder 4 is rotatably installed on the fixed bearing 5. The fixed bearing 5 is fixedly installed in the chamber of the cylinder 3. The driving mechanism is used to drive the dehydration cylinder 4 to rotate. The pushing mechanism is used to push the sludge in the cavity of the dehydration cylinder 4 out and seal the opening at the left end of the dehydration cylinder 4; when dehydrating the sludge, first, the sludge to be dehydrated is added into the cavity of the dehydration cylinder 4 through the feeding pipe 7. Then, the driving mechanism is turned on to make the dehydration cylinder 4 rotate at a high speed. Thus, the sludge in the cavity of the dehydration cylinder 4 is dehydrated under the action of centrifugal force. The water is discharged into the chamber of the cylinder 3 through the plurality of groups of filter holes on the dehydration cylinder 4. Until the sludge in the cavity of the dehydration cylinder 4 is dehydrated, the valve on the drain pipe is opened to discharge the water in the chamber of the cylinder 3. Then, the sealing cover 6 is opened. Then, the pushing mechanism is turned on to push the sludge in the cavity of the dehydration cylinder 4 out through the opening at the right end of the dehydration cylinder 4; it can automatically discharge the dehydrated sludge through the opening at the right end of the dehydration cylinder 4, which is convenient to use and improves the convenience and practicability.

[0021] As Figure 4, the drive mechanism includes sprocket A8, chain 9, sprocket B10, drive shaft 11, fixed plate 12 and drive motor 13. Sprocket A8 is fixedly sleeved on the outer side wall of the dehydration cylinder 4. Sprocket A8 is drivingly connected to sprocket B10 through chain 9. Sprocket B10 is fixedly installed on drive shaft 11. Drive shaft 11 is rotatably installed on fixed plate 12. The input end of drive shaft 11 is connected to drive motor 13. Both drive motor 13 and fixed plate 12 are fixedly installed on the bottom plate 1. When rotating the dehydration cylinder 4, turn on drive motor 13. Drive motor 13 causes sprocket B10 to rotate through drive shaft 11. Sprocket B10 causes sprocket A8 to rotate through chain 9. Sprocket A8 drives dehydration cylinder 4 to rotate. It is convenient to rotate the dehydration cylinder 4.

[0022] As Figure 4 , the pushing mechanism includes push plate 14, thrust bearing 15, rotating shaft 16, push rod 17, hydraulic cylinder 18 and support frame 19. A chute is provided in the cavity of dehydration cylinder 4. Push plate 14 is slidably installed left and right on the chute of dehydration cylinder 4. Thrust bearing 15 is fixedly installed at the left end of push plate 14. Push plate 14 is used to seal the opening at the left end of dehydration cylinder 4. Rotating shaft 16 is rotatably installed on thrust bearing 15. Rotating shaft 16 is coaxial with dehydration cylinder 4. Rotating shaft 16 is fixedly installed at the right end of push rod 17. Push rod 17 is slidably installed left and right on cylinder body 3. The left end of push rod 17 is connected to the output end of hydraulic cylinder 18. Hydraulic cylinder 18 is fixedly installed on the bottom plate 1 through support frame 19. When discharging the sludge that has been dehydrated in dehydration cylinder 4, open the sealing cover 6, and then open hydraulic cylinder 18. Hydraulic cylinder 18 causes rotating shaft 16 to drive thrust bearing 15 and push plate 14 to move to the right through push rod 17. During the process of moving to the right, push plate 14 pushes the sludge in the cavity of dehydration cylinder 4 out through the opening at the right end of dehydration cylinder 4. It is convenient to discharge the sludge.

[0023] A handle 22 is provided on the sealing cover 6. The material of the cylinder body 3 is stainless steel. A waterproof cover is provided on the drive motor 13.

[0024] Embodiment 2

[0025] On the basis of Embodiment 1, a vacuum pump 20 and an exhaust pipe 21 are added. The vacuum pump 20 is fixedly installed at the upper end of the cylinder body 3. The input end of the vacuum pump 20 is communicated with the chamber of the cylinder body 3. The output end of the vacuum pump 20 is provided with an exhaust pipe 21. When dehydrating the sludge in the cavity of the dehydration cylinder 4, turn on the vacuum pump 20 to reduce the pressure in the chamber of the cylinder body 3, promote the dehydration of the sludge in the cavity of the dehydration cylinder 4, and improve the dehydration efficiency.

[0026] The dehydration cylinder 4, fixed bearing 5, chain 9, thrust bearing 15, hydraulic cylinder 18 and vacuum pump 20 of the domestic sewage sludge dewatering device of the present utility model are all purchased on the market. Those skilled in the art only need to install and operate according to the attached operation manuals without the creative work of those skilled in the art.

[0027] The above are only the preferred embodiments of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A domestic sludge dewatering device, comprising a base plate (1), a bracket (2) and a cylinder (3), wherein the cylinder (3) is fixedly mounted on the upper end of the base plate (1) through the bracket (2), a chamber is arranged inside the cylinder (3), a drain pipe communicating with the chamber is arranged at the lower part of the cylinder (3), and a valve is arranged on the drain pipe; characterized in that: The invention also comprises a dewatering cylinder (4), a fixed bearing (5), a sealing cover (6), a feeding pipe (7), a driving mechanism and a pushing mechanism. The dewatering cylinder (4) is rotatably mounted on the cylinder body (3). A cavity is arranged inside the dewatering cylinder (4). The dewatering cylinder (4) is provided with a plurality of filter holes connected with the cavity. The plurality of filter holes are all located in the chamber of the cylinder body (3). Filter cloths are arranged on the outer wall of the dewatering cylinder (4). Both left and right ends of the dewatering cylinder (4) are arranged with openings. The sealing cover (6) is mounted on the right end of the dewatering cylinder (4) by bolts. The feeding pipe (7) is mounted on the sealing cover (6). A valve is arranged on the feeding pipe (7). The dewatering cylinder (4) is rotatably mounted on the fixed bearing (5). The fixed bearing (5) is fixedly mounted in the chamber of the cylinder body (3). The driving mechanism is used to drive the dewatering cylinder (4) to rotate. The pushing mechanism is used to push out the sludge in the cavity of the dewatering cylinder (4) and seal the opening at the left end of the dewatering cylinder (4).

2. A domestic sludge dewatering device as claimed in claim 1, characterized in that: The driving mechanism comprises a sprocket A (8), a chain (9), a sprocket B (10), a driving shaft (11), a fixing plate (12) and a driving motor (13); the sprocket A (8) is fixedly mounted on the outer wall of the dewatering cylinder (4); the sprocket A (8) is transmission-connected to the sprocket B (10) via the chain (9); the sprocket B (10) is installed on the driving shaft (11); the driving shaft (11) is rotatably installed on the fixing plate (12); the input end of the driving shaft (11) is connected to the driving motor (13); and the driving motor (13) and the fixing plate (12) are both fixedly installed on the bottom plate (1).

3. A domestic sludge dewatering device as claimed in claim 1, characterized in that: The ejection mechanism comprises a push plate (14), a thrust bearing (15), a rotating shaft (16), a push rod (17), a hydraulic cylinder (18) and a support frame (19). A slide groove is arranged in the cavity of the dehydration cylinder (4). The push plate (14) is slidably mounted on the slide groove of the dehydration cylinder (4) to the left and right. The thrust bearing (15) is fixedly mounted on the left end of the push plate (14). The push plate (14) is used to seal the opening at the left end of the dehydration cylinder (4). The rotating shaft (16) is rotatably mounted on the thrust bearing (15). The rotating shaft (16) is coaxial with the dehydration cylinder (4). The rotating shaft (16) is fixedly mounted on the right end of the push rod (17). The push rod (17) is slidably mounted on the cylinder body (3) to the left and right. The left end of the push rod (17) is connected to the output end of the hydraulic cylinder (18). The hydraulic cylinder (18) is fixedly mounted on the bottom plate (1) through the support frame (19).

4. A domestic sludge dewatering device as claimed in claim 1, characterized in that: It also comprises a vacuum pump (20) and an exhaust pipe (21); the vacuum pump (20) is fixedly mounted on the upper end of the cylinder (3); the input end of the vacuum pump (20) is in communication with the chamber of the cylinder (3); and the output end of the vacuum pump (20) is provided with the exhaust pipe (21).

5. The domestic sludge dewatering device according to claim 1, characterized in that: The sealing cover (6) is provided with a handle (22).

6. A domestic sludge dewatering device as claimed in claim 1, characterized in that: The material of the cylinder (3) is stainless steel.

7. A domestic sludge dewatering device as claimed in claim 2, characterized in that: The driving motor (13) is provided with a waterproof cover.

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