Multi-stage filter-pressing filtering mechanism for sewage treatment

By designing a multi-stage pressure filtration mechanism, using a screw pusher and a cylinder to move the filter plates, combined with a crushing rod to break up the sludge, the problem of treating large particles of debris in the liquid during wastewater treatment is solved. This achieves efficient multi-stage filtration and sludge refinement, reducing energy consumption and costs.

CN223887492UActive Publication Date: 2026-02-10FUJIAN XINHUA WATER SCI & TECH CO LTD
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Patent Information

Application Number
CN202520437541.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2026-02-10
Estimated Expiration
2035-03-13

AI Technical Summary

Technical Problem

Existing wastewater treatment equipment, after removing water from sludge, still contains large particulate matter in the liquid, requiring additional treatment, which leads to high energy consumption and increased costs, and makes it difficult to improve the purification rate.

Method used

Design a multi-stage pressure filtration mechanism that uses a screw to drive a pusher plate to squeeze the filter plate, combined with a cylinder to move the filter plate and a crushing rod to crush the sludge, to achieve multi-stage filtration and sludge refinement, and uses a liquid pump to extract liquid for multi-stage cleaning.

Benefits of technology

It achieves multi-stage filtration and stable sludge discharge, improves purification rate, reduces energy consumption and cost, and simplifies the sludge treatment process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of filter presses, and particularly discloses a multistage filter-pressing filtering mechanism for sewage treatment, which comprises a shell and a base, the base is welded at the center of the top end of the shell, a support is fixed above the base, a screw rod is movably connected between two sides of the rear part in the support, and the screw rod is movably connected with the base. A first motor is installed behind the right side of the support, and the right side of the exterior of the lead screw is sleeved with a push plate. According to the multi-stage filter-pressing filtering mechanism for sewage treatment, the box body is placed in the rectangular groove, the left filter plate, the middle filter plate and the right filter plate are extruded and attached together, a mixed material enters the through groove in the center of each plate through the conveying pipe and fills the inner cavity to be extruded and dehydrated, and under the pumping action of the liquid pump, the mixed material enters the through groove in the center of each plate through the conveying pipe; liquid enters the box body through the three-way pipe and the insertion pipe and is filtered by the screen bag fixed by the clamping frame overlapped above the limiting sleeve, so that the problem of single filtering effect is solved.
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Description

Technical Field

[0001] This utility model relates to the field of filter press technology, specifically a multi-stage filter press mechanism for wastewater treatment. Background Technology

[0002] A filter press is a device that introduces a mud-water mixture into the machine through pipes. After being processed by multiple stages of filter materials, the water in the mud is squeezed out. After multiple filter plates are gradually separated by a tossing mechanism, they can fall automatically, while the wastewater is discharged through a reserved pipe, thus achieving separation of solids and liquids.

[0003] Even if the water is removed from the sludge by squeezing, large particles of impurities remain in the liquid, requiring additional processing. This necessitates extraction and further filtration, which consumes excessive energy, increases costs, and makes it difficult to improve the purification rate of the extruder.

[0004] Now, a novel multi-stage pressure filtration mechanism for wastewater treatment is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a multi-stage pressure filtration mechanism for wastewater treatment, so as to solve the problem of single filtration effect mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage pressure filtration mechanism for sewage treatment, comprising a housing and a base. A base is welded to the center of the top of the housing, and a support is fixed above the base. A lead screw is movably connected between the two rear sides inside the support. A motor is installed at the rear right side of the support. A push plate is sleeved on the right side outside the lead screw, and a threaded groove is provided at the center of the rear inside the push plate. A right filter plate is provided on the left side of the push plate, and an intermediate filter plate is provided on the left side of the right filter plate. A left filter plate is provided on the left side of the intermediate filter plate. The right filter plate... A sleeve block is welded to the center of the rear of the middle filter plate and the left filter plate respectively. Liquid delivery blocks are fixed at the four corners of the right filter plate, the middle filter plate and the left filter plate respectively. A three-way pipe is installed at the front and rear ends of the left side of the bracket respectively, and an insert pipe is installed at the center between the three-way pipes. A rectangular groove is provided on the left side of the inside of the shell, and a box is placed in the rectangular groove. Limit sleeves are fixed on both sides of the inside of the box respectively, and a frame is snapped between the tops of the limit sleeves. A screen bag is installed at the center of the bottom of the frame. A cover plate is snapped on the top of the box, and a liquid pump is installed at the center of the top of the cover plate.

[0007] As a further technical solution of this utility model, a conveying pipe is welded to the center of the left side of the bracket, and a through groove is provided horizontally at the center of the right filter plate, the middle filter plate and the left filter plate.

[0008] As a further technical solution of this utility model, the bottom of the insertion tube is fixedly connected to the liquid pump, and the limiting sleeve is symmetrically supported on both sides of the bottom of the card frame.

[0009] As a further technical solution of this utility model, a lever is welded to the front center of the right filter plate, the middle filter plate and the left filter plate. Fixing blocks are respectively installed on both sides of the top of the bracket, and a screw is horizontally assembled between the fixing blocks. A slider is connected to the external thread of the screw, and a sleeve is welded to the lower front end of the slider. A cylinder is vertically installed inside the sleeve, and a lever is fixed to the bottom of the piston rod of the cylinder. A motor is installed between the right side of the screw and the fixing block.

[0010] As a further technical solution of this utility model, a horizontal groove is provided at the center of the interior of the shell, and a storage box is fixedly placed in the horizontal groove. A transmission chamber is provided at the center of the bottom of the storage box, and a horizontal shaft is movably connected between the two sides inside the transmission chamber. Gears two are fixed on the two sides outside the horizontal shaft, and gears one are movably connected on the two sides at the top of the transmission chamber. A motor three is installed on the right side inside the storage box, and a crushing rod is movably connected on the two sides at the bottom inside the storage box.

[0011] As a further technical solution of this utility model, the bottom of the crushing rod is fixedly connected to gear one, and gear one is meshed with the left side of the top of gear two.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the multi-stage pressure filter mechanism for sewage treatment not only realizes multi-stage filtration and smooth opening of the filter plates, but also facilitates the transport of sludge.

[0013] (1) By placing the box in the rectangular groove, the push plate with the threaded groove moves left and right with the rotating screw after the motor starts, so as to squeeze the left filter plate, the middle filter plate and the right filter plate together. The mixed material enters the through groove in the center of each plate through the conveying pipe, thereby filling the internal chamber for squeezing and dehydration. The liquid enters the three-way pipe through the liquid delivery block after the plates are combined. Under the action of the liquid pump, it enters the box through the insertion pipe. The screen bag is fixed by the clip frame above the limit sleeve to filter out the residual particles in the liquid and achieve multi-stage cleaning.

[0014] (2) By welding a sleeve below the front end of the slider, after dewatering, start motor two. Under the restriction of the rod at the top of the bracket, the slider is moved left and right by rotating screw. When the slider moves to the gap between the connected filter materials, start the piston rod of the cylinder to sink. Use the lever to insert between the adjacent levers and move it to the right to sequentially open the left filter plate, the middle filter plate and the right filter plate for stable sludge discharge and prevent each plate from getting stuck during the movement.

[0015] (3) By connecting the crushing rods on both sides of the lower part of the storage box, after the mud sludge is separated from the left filter plate, the middle filter plate and the right filter plate, the bottom of the mud sludge falls into the storage box through the base. Simultaneously, the motor three rotates the horizontal shaft, and the two gears two with the same rotation speed mesh to push the gear one at the top, thereby rotating the crushing rod connected to the gear one to crush and refine the mud sludge, so that the main body of the storage box can be directly taken out from the horizontal groove, avoiding the inconvenience of taking out whole pieces of mud sludge. Attached Figure Description

[0016] Figure 1 This is a frontal cross-sectional view of the present invention.

[0017] Figure 2 This is a side view of the intermediate filter plate structure of this utility model;

[0018] Figure 3 This is a front view schematic diagram of the slider structure of this utility model;

[0019] Figure 4 For the present utility model Figure 1 A magnified schematic diagram of a partial cross-section at point A in the middle.

[0020] In the diagram: 1. Shell; 2. Base; 3. Bracket; 4. Motor 1; 5. Lead screw; 6. Threaded groove; 7. Push plate; 8. Motor 2; 9. Screw; 10. Right filter plate; 11. Slider; 12. Cylinder; 13. Sleeve; 14. Intermediate filter plate; 15. Fixing block; 16. Left filter plate; 17. T-connector; 18. Delivery pipe; 19. Insert pipe; 20. Liquid pump; 21. Cover plate; 22. Frame; 23. Rectangular groove; 24. Box; 25. Screen bag; 26. Limiting sleeve; 27. Horizontal shaft; 28. Storage box; 29. ​​Horizontal groove; 30. Motor 3; 31. Crushing rod; 32. Liquid delivery block; 33. Pulley block; 34. Through groove; 35. Pulley rod; 36. Transmission chamber; 37. Gear 1; 38. Gear 2; 39. Sleeve block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4This utility model provides an embodiment of a multi-stage pressure filtration mechanism for wastewater treatment, comprising a housing 1 and a base 2. The base 2 is welded to the center of the top of the housing 1, and a support 3 is fixed above the base 2. A lead screw 5 is movably connected between the two sides of the rear interior of the support 3. A motor 4 is installed at the rear right side of the support 3. A push plate 7 is sleeved on the right side of the lead screw 5, and a threaded groove 6 is provided at the center of the rear interior of the push plate 7. A right filter plate 10 is provided on the left side of the push plate 7, an intermediate filter plate 14 is provided on the left side of the right filter plate 10, and a left filter plate 16 is provided on the left side of the intermediate filter plate 14. The right filter plate 10, the intermediate filter plate 14, and the left filter plate 16 are located behind... At the center of the filter plate 10, the middle filter plate 14 and the left filter plate 16 are respectively welded with a sleeve block 39. Liquid delivery blocks 32 are fixed at the four corners of the right filter plate 10, the middle filter plate 14 and the left filter plate 16. A three-way pipe 17 is installed at the front and rear ends of the left side of the bracket 3. An insertion pipe 19 is installed at the center between the three-way pipes 17. A rectangular groove 23 is provided on the left side inside the shell 1. A box 24 is placed in the rectangular groove 23. Limit sleeves 26 are fixed on both sides inside the box 24. A frame 22 is snapped between the tops of the limit sleeves 26. A screen bag 25 is installed at the center of the bottom of the frame 22. A cover plate 21 is snapped on the top of the box 24. A liquid pump 20 is installed at the center of the top of the cover plate 21.

[0023] A conveying pipe 18 is welded to the center of the left side of the bracket 3. A through groove 34 is provided horizontally in the center of the right filter plate 10, the middle filter plate 14 and the left filter plate 16 respectively. The bottom of the insertion pipe 19 is fixedly connected to the liquid pump 20. The limiting sleeve 26 is symmetrically supported on both sides of the bottom of the frame 22.

[0024] Specifically, such as Figure 1 and Figure 2 As shown, after the motor 4 starts, the rotating screw 5 moves the push plate 7 with the threaded groove 6 left and right to squeeze and stick the left filter plate 16, the middle filter plate 14 and the right filter plate 10 together. The mixed material enters the through groove 34 at the center of each plate through the conveying pipe 18, thereby filling the internal cavity for squeezing and dehydration. After the plates are combined, the liquid enters the three-way pipe 17 through the liquid delivery block 32. Under the pumping action of the liquid pump 20, it enters the box 24 through the insertion pipe 19. The screen bag 25 is fixed by the clamp frame 22 that overlaps the limit sleeve 26 for liquid filtration.

[0025] A lever 33 is welded to the front center of the right filter plate 10, the middle filter plate 14 and the left filter plate 16. Fixing blocks 15 are installed on both sides of the top of the bracket 3, and a screw 9 is horizontally assembled between the fixing blocks 15. A slider 11 is connected to the external thread of the screw 9, and a sleeve 13 is welded to the lower front end of the slider 11. A cylinder 12 is installed vertically inside the sleeve 13, and a lever 35 is fixed to the bottom of the piston rod of the cylinder 12. A motor 8 is installed between the right side of the screw 9 and the fixing block 15.

[0026] Specifically, such as Figure 1 and Figure 3 As shown, after dehydration, motor 8 is started. Under the constraint of the rod at the top of the support 3, the rotating screw 9 moves the slider 11 left and right. When the slider 11 moves to the gap between the connected filter materials, the piston rod of the cylinder 12 is activated to sink. The lever 35 is inserted between the adjacent levers 33 and moved to the right to sequentially open the left filter plate 16, the middle filter plate 14 and the right filter plate 10.

[0027] A transverse groove 29 is provided at the center of the interior of the housing 1, and a storage box 28 is fixedly placed in the transverse groove 29. A transmission chamber 36 is provided at the center of the bottom of the storage box 28, and a transverse shaft 27 is movably connected between the two sides inside the transmission chamber 36. Gear 28 is fixed on the two sides outside the transverse shaft 27. Gear 1 37 is movably connected to the two sides of the top of the transmission chamber 36. Motor 30 is installed on the right side inside the storage box 28. Crushing rod 31 is movably connected to the two sides of the bottom inside the storage box 28. The bottom of the crushing rod 31 is fixedly connected to gear 1 37. Gear 1 37 is meshed with the left side of the top of gear 2 38.

[0028] Specifically, such as Figure 1 and Figure 4 As shown, after the sludge separates from the left filter plate 16, the middle filter plate 14 and the right filter plate 10, the bottom of the sludge falls into the collection box 28 through the base 2. Simultaneously, the motor 30 rotates the horizontal shaft 27, and the two gears 28 with the same rotation speed mesh to push the top gear 37, thereby rotating the crushing rod 31 connected to the gear 37 to crush and refine the sludge so that the main body of the collection box 28 can be directly taken out from the horizontal groove 29.

[0029] Working principle: When this utility model is in use, after the motor 4 is started, the rotating screw 5 moves the push plate 7 with the threaded groove 6 left and right to squeeze and adhere the left filter plate 16, the middle filter plate 14, and the right filter plate 10 together. The mixed material enters the through groove 34 at the center of each plate through the conveying pipe 18, thereby filling the internal chamber for compression and dewatering. After the plates are combined, the liquid enters the three-way pipe 17 through the liquid delivery block 32. Under the pumping action of the liquid pump 20, it enters the box 24 through the insertion pipe 19. The screen bag 25 is fixed by the clamping frame 22 above the limiting sleeve 26 for secondary filtration. After dewatering is completed, the motor 8 is started, and under the restriction of the rod at the top of the support 3, The rotating screw 9 moves the slider 11 left and right. When the slider 11 moves to the gap between the connected filter materials, the piston rod of the cylinder 12 is activated and lowered. The lever 35 is inserted between the adjacent levers 33 and moved to the right, thereby sequentially opening the left filter plate 16, the middle filter plate 14 and the right filter plate 10 for stable sludge discharge. The bottom of the sludge falls into the collection box 28 through the base 2. The motor 30 is started at the same time to rotate the horizontal shaft 27. The two gears 2 38 with the same rotation speed mesh to push the top gear 1 37, thereby rotating the crushing rod 31 connected to the gear 1 37 to crush and refine the sludge so that the main body of the collection box 28 can be directly taken out from the horizontal groove 29.

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

Claims

1. A multi-stage pressure filtration mechanism for wastewater treatment, comprising a housing (1) and a base (2), characterized in that: A base (2) is welded to the center of the top of the housing (1), and a bracket (3) is fixed above the base (2). A lead screw (5) is movably connected between the two sides of the rear of the bracket (3). A motor (4) is installed at the rear of the right side of the bracket (3). A push plate (7) is sleeved on the right side of the lead screw (5), and a threaded groove (6) is provided at the center of the rear of the push plate (7). A right filter plate (10) is provided on the left side of the push plate (7), and a middle filter plate (14) is provided on the left side of the right filter plate (10). A left filter plate (16) is provided on the left side of the middle filter plate (14). A sleeve block (39) is welded to the center of the rear of the right filter plate (10), the middle filter plate (14), and the left filter plate (16). 0) Liquid delivery blocks (32) are fixed at the four corners of the middle filter plate (14) and the left filter plate (16). A three-way pipe (17) is installed at the front and rear ends of the left side of the bracket (3), and an insertion pipe (19) is installed at the center between the three-way pipes (17). A rectangular groove (23) is provided on the left side inside the shell (1), and a box (24) is placed in the rectangular groove (23). Limit sleeves (26) are fixed on both sides inside the box (24), and a frame (22) is snapped between the tops of the limit sleeves (26). A screen bag (25) is installed at the center of the bottom of the frame (22). A cover plate (21) is snapped on the top of the box (24), and a liquid pump (20) is installed at the center of the top of the cover plate (21).

2. The multi-stage pressure filtration mechanism for wastewater treatment according to claim 1, characterized in that: A conveying pipe (18) is welded to the center of the left side of the bracket (3), and a through groove (34) is provided horizontally at the center of the right filter plate (10), the middle filter plate (14) and the left filter plate (16).

3. The multi-stage pressure filtration mechanism for wastewater treatment according to claim 1, characterized in that: The bottom of the insertion tube (19) is fixedly connected to the liquid pump (20), and the limiting sleeve (26) is symmetrically supported on both sides of the bottom of the frame (22).

4. The multi-stage pressure filtration mechanism for wastewater treatment according to claim 1, characterized in that: A lever (33) is welded to the front center of the right filter plate (10), the middle filter plate (14) and the left filter plate (16). Fixing blocks (15) are installed on both sides of the top of the bracket (3), and a screw (9) is horizontally assembled between the fixing blocks (15). A slider (11) is threaded to the outside of the screw (9), and a sleeve (13) is welded to the lower front end of the slider (11). A cylinder (12) is installed longitudinally inside the sleeve (13), and a lever (35) is fixed to the bottom of the piston rod of the cylinder (12). A motor (8) is installed between the right side of the screw (9) and the fixing block (15).

5. A multi-stage pressure filtration mechanism for wastewater treatment according to claim 1, characterized in that: A transverse groove (29) is provided at the center of the interior of the housing (1), and a storage box (28) is fixedly placed in the transverse groove (29). A transmission chamber (36) is provided at the center of the bottom of the storage box (28), and a transverse shaft (27) is movably connected between the two sides inside the transmission chamber (36). Gears two (38) are fixed on the two sides outside the transverse shaft (27). Gear one (37) is movably connected on the two sides of the top of the transmission chamber (36). Motor three (30) is installed on the right side inside the storage box (28). A crushing rod (31) is movably connected on the two sides of the bottom inside the storage box (28).

6. A multi-stage pressure filtration mechanism for wastewater treatment according to claim 5, characterized in that: The bottom of the crushing rod (31) is fixedly connected to gear one (37), and gear one (37) is meshed with the left side of the top of gear two (38).