Efficient external-washing and external-discharging environment-friendly filter press

By introducing a combination of lead screw, shift seat and cylinder pusher into the filter press, the automatic separation and shaking of the filter plates is achieved, which solves the problem of manual cleaning of filter cake in existing filter presses and improves work efficiency and the degree of automation of equipment operation.

CN224056768UActive Publication Date: 2026-03-31韩春红
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-25
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

The filter cake in existing filter presses needs to be cleaned manually, which leads to low work efficiency and reduces the practicality of the equipment.

Method used

The system uses a combination of a lead screw, a shifting seat, a No. 1 cylinder, and a pusher block. The lead screw drives the shifting seat, the cylinder adjusts the height of the pusher block to lock the filter plate limit frame, causing the filter plate to separate. The cylinder also drives the filter plate to shake up and down, causing the filter cake to fall automatically into the collection tank, thus achieving automatic cleaning.

Benefits of technology

It enables automatic cleaning of filter cake, improves work efficiency, saves manpower, reduces equipment downtime, and enhances the operating efficiency of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an efficient external-washing and external-discharging environment-friendly filter press, and belongs to the technical field of filter presses. Comprising a fixing base, sliding frames are fixedly connected to the two sides of the fixing base, a plurality of filter plates are slidably connected between the two sliding frames, each filter plate comprises limiting frames fixedly connected to the positions close to the two sides of the sliding frames, and fixing blocks are fixedly connected to the two ends of the top and the two ends of the bottom of each filter plate; the two sides, staggered with the sliding frame, of the filter plate are in bolted connection with filter cloth; through the arrangement of the lead screw, the moving seat, the first air cylinder and the push block, the device can drive the moving seat through the lead screw, then the height of the push block is adjusted through the air cylinder, the push block clamps limiting frames on the two sides of a filter plate and drives the filter plate to be separated from other filter plates, filter cakes on the outer side of the filter plate are conveniently cleaned, and the filter plate can be driven to shake up and down through the air cylinder; and the filter cake can automatically fall into the storage groove, automatic cleaning of the filter cake is achieved, and the working efficiency of the device is improved.
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Description

Technical Field

[0001] This utility model relates to the field of filter press technology, and in particular to a high-efficiency environmentally friendly filter press with external washing and discharge. Background Technology

[0002] A filter press is a commonly used solid-liquid separation device, widely used in chemical, pharmaceutical, metallurgical, food, environmental protection and other fields. Its working principle is to use pressure to drive filtration. Pressure is applied to the solid-liquid mixture through a special filter medium, so that the liquid passes through the filter cloth, while the solid particles are trapped on the filter cloth to form a filter cake.

[0003] Existing filter presses filter liquids through filter plates and filter cloths, causing the liquid to remain fixed on the inside and form a filter cake. The filter cake is then manually cleaned, resulting in low operating efficiency and reduced practicality of the equipment.

[0004] Therefore, this utility model provides a high-efficiency, environmentally friendly filter press with external washing and discharge to meet the requirements. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency, environmentally friendly filter press with external washing and discharge to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency external washing and external discharge environmentally friendly filter press, comprising a fixed base, with slides fixedly connected to both sides of the fixed base, and a plurality of filter plates slidably connected between the two slides. Each filter plate includes a limiting frame fixedly connected to both sides of the slides, and a fixing block fixedly connected to both ends of the top and bottom of the filter plate. Filter cloth is bolted to both sides of the filter plate and the slides, and the filter cloth includes an outer block whose outer position is adapted to the fixing block. A flow hole is opened at the center of both the filter plate and the filter cloth. An extrusion chamber is opened on both sides of the filter plate. A bottom block is fixedly connected to the bottom of the limiting frame. A lead screw is rotatably connected to the side of each of the two slides away from each other. A shift seat is threaded to the outer side of the lead screw. A cylinder is fixedly connected to the top of the shift seat. A push block is fixedly connected to the top of the cylinder. The same side seat is fixedly connected to the end of each of the two slides away from the fixed base.

[0007] In a preferred embodiment, a feeding pipe is fixedly connected to the side of the side seat away from the fixed seat, and the position of the feeding pipe is adapted to the flow hole.

[0008] In a preferred embodiment, a second cylinder is fixedly connected to the side of the fixed base near the side seat, and a pressure plate is fixedly connected to the output end of the second cylinder.

[0009] In a preferred embodiment, both sides of the pressure plate are fixedly connected to a bracket, and the two brackets are slidably connected to the top of the two slides respectively.

[0010] In a preferred embodiment, a motor is fixedly connected to the outer side of the carriage, and the output end of the motor is fixedly connected to the lead screw.

[0011] In a preferred embodiment, the filter cloth is the same size as the filter plate, and the outer block is bolted to the outside of the corresponding fixing block.

[0012] In a preferred embodiment, the bottom ends of the adjacent sides of the side seat and the fixed seat are fixedly connected to the same storage groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model, by setting up a lead screw, a shifting seat, a No. 1 cylinder, and a pusher block, allows the device to drive the shifting seat via the lead screw, and then adjust the height of the pusher block via the cylinder to lock the limiting frames on both sides of the filter plate, causing it to separate from other filter plates, facilitating the cleaning of the filter cake on its outer side. The cylinder can also drive the filter plate to shake up and down, causing the filter cake to automatically fall into the collection tank, thus achieving automatic cleaning of the filter cake and improving the working efficiency of the device.

[0015] This utility model, by setting flow holes, extrusion chambers and slides, allows the device to load different numbers of filter plates on the inner side of two slides according to needs. The flow holes facilitate the flow of liquid between the filter plates, allowing the liquid to be extruded inside the extrusion chamber, thus improving the extrusion separation effect of the device. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of a high-efficiency, externally washed and discharged environmentally friendly filter press;

[0017] Figure 2 A cross-sectional three-dimensional structural diagram of the filter plate and filter cloth in operation;

[0018] Figure 3 for Figure 1 Enlarged diagram of point A.

[0019] In the diagram: 1. Fixed seat; 2. Slide frame; 3. Filter plate; 4. Fixed block; 5. Filter cloth; 6. Outer block; 7. Flow hole; 8. Extrusion chamber; 9. Limiting frame; 10. Bottom block; 11. Lead screw; 12. Moving seat; 13. Cylinder No. 1; 14. Push block; 15. Side seat; 16. Feeding pipe; 17. Storage groove; 18. Pressure plate. Detailed Implementation

[0020] The present invention will be further described below with reference to the embodiments.

[0021] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention; the conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the concept of the present invention are all within the scope of protection claimed by the present invention.

[0022] Please see Figures 1-3 This utility model provides a high-efficiency external washing and external discharge environmentally friendly filter press, including a fixed base 1, with slides 2 fixedly connected to both sides of the fixed base 1, and a plurality of filter plates 3 slidably connected between the two slides 2. The filter plates 3 include limiting frames 9 fixedly connected to both sides near the slides 2, and fixing blocks 4 fixedly connected to both ends of the top and bottom of the filter plates 3. Filter cloths 5 are bolted to both sides of the filter plates 3 and the slides 2. The filter cloths 5 include outer blocks 6 whose outer positions are adapted to the fixing blocks 4. A second cylinder is fixedly connected to the side of the fixed base 1 near the side seat 15. A pressure plate 18 is fixedly connected to the output end of the second cylinder. A bracket is fixedly connected to both sides of the pressure plate 18. The two brackets are slidably connected to the top of the two slides 2 respectively. The size of the filter cloths 5 is the same as that of the filter plates 3, and the outer blocks 6 are bolted to the outer side of the corresponding fixing blocks 4.

[0023] The filter cloth 5 is bolted to the outside of the filter plate 3. The filter plate 3 is installed between the two slides 2 by the limiting frame 9. The second cylinder pushes the pressure plate 18 to move towards the filter plate 3, so as to squeeze all the filter plates 3 and ensure the airtightness between the filter plates 3.

[0024] Through the design of the flow hole 7, the liquid can enter the squeezing chamber 8 between each filter plate 3 evenly, avoiding the problem of excessively high or low local pressure caused by uneven material distribution. The structural design of the squeezing chamber 8 ensures that the liquid can quickly pass through the filter cloth 5 under pressure, while solid particles are effectively intercepted to form a filter cake. This stable squeezing process not only improves the filtration efficiency but also extends the service life of the filter cloth 5. The sliding connection of the slide 2 allows the device to flexibly adjust the number of filter plates 3 according to the needs. This flexibility enables the device to adapt to filtration tasks of different scales, improving the versatility and economy of the equipment.

[0025] Please see Figures 1-3Both the filter plate 3 and the filter cloth 5 have flow holes 7 at their center. Both sides of the filter plate 3 have extrusion chambers 8. The bottom of the limiting frame 9 is fixedly connected to a base block 10. Both slides 2 are rotatably connected to a lead screw 11 on the side away from each other. The outer side of the lead screw 11 is threadedly connected to a shift seat 12. The top of the shift seat 12 is fixedly connected to a first cylinder 13. The top of the first cylinder 13 is fixedly connected to a push block 14. The ends of the two slides 2 away from the fixed seat 1 are fixedly connected to the same side seat 15. The side seat 15 away from the fixed seat 1 is fixedly connected to a feeding pipe 16. The position of the feeding pipe 16 is adapted to the flow hole 7. The outer side of the slide 2 is fixedly connected to a motor. The output end of the motor is fixedly connected to the lead screw 11. The bottom ends of the side seat 15 and the fixed seat 1 on adjacent sides are fixedly connected to the same storage groove 17.

[0026] The liquid to be filtered is added to the filter press through the feed pipe 16. The liquid enters between the filter plates 3 through the flow hole 7. The second cylinder is started, so that the pressure plate 18 presses the filter plate 3 tightly, so that the liquid is filtered through the filter plate 3, and the solid forms a filter cake between the filter cloths 5 on both sides, thus completing the separation. After the filtration is completed, the motor drives the lead screw 11 to rotate, so that the moving seat 12 moves to one side of the filter plate 3 to be cleaned. The first cylinder 13 is started, so that the push block 14 rises and locks the bottom block 10. Then, the lead screw 11 drives the filter plate 3 to leave the adjacent filter plate 3. The first cylinder 13 drives the filter plate 3 to shake up and down, so that the filter cake falls into the collection tank 17, and all the filter plates 3 are cleaned one by one.

[0027] When filter plate 3 is held in place by push block 14, screw 11 rotates in the opposite direction, causing filter plate 3 to separate from other filter plates 3 as shift seat 12 moves. This separation operation fully exposes the outer side of filter plate 3, making it easier to clean the filter cake on the outer side of filter plate 3. Cylinder 13 can also quickly extend and retract to shake filter plate 3 up and down. The filter cake attached to filter cloth 5 will automatically fall off due to gravity and shaking. The whole process is fully automated and requires no manual intervention, which not only saves manpower but also greatly improves work efficiency, reduces equipment downtime, and enables the filter press to operate more efficiently.

[0028] The working principle and usage process of this utility model are as follows: The filter cloth 5 is bolted to the outside of the filter plate 3. The filter plate 3 is installed between the two slides 2 through the limiting frame 9. The second cylinder pushes the pressure plate 18 to move towards the filter plate 3, so that all the filter plates 3 are squeezed to ensure the airtightness between the filter plates 3. The liquid to be filtered is added to the filter press through the feeding pipe 16. The liquid enters between the filter plates 3 through the flow hole 7. The second cylinder is started, so that the pressure plate 18 presses the filter plate 3 tightly, so that the liquid is filtered through the filter plate 3, and the solid forms a filter cake between the filter cloths 5 on both sides, thus completing the separation. After the filtration is completed, the motor drives the lead screw 11 to rotate, so that the moving seat 12 moves to one side of the filter plate 3 to be cleaned. The first cylinder 13 is started, so that the push block 14 rises and locks the bottom block 10. Then, the lead screw 11 drives the filter plate 3 to leave the adjacent filter plate 3. The first cylinder 13 drives the filter plate 3 to shake up and down, so that the filter cake falls into the collection tank 17, and the filter plates 3 are cleaned one by one.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency, environmentally friendly, and external-washing, external-discharging filter press, comprising a fixed base (1), characterized in that, Both sides of the fixed seat (1) are fixedly connected with sliding frames (2), a plurality of filter plates (3) are slidably connected between the two sliding frames (2), the filter plate (3) comprises a limiting frame (9) fixedly connected near both sides of the sliding frame (2), the top and bottom of the filter plate (3) are fixedly connected with fixed blocks (4), the two sides of the filter plate (3) and the sliding frame (2) are bolted with filter cloth (5), the filter cloth (5) comprises an outer block (6) which is adapted to the position of the fixed block (4), the center of the filter plate (3) and the filter cloth (5) are provided with flow holes (7), the two sides of the filter plate (3) are provided with extrusion cavities (8), the bottom of the limiting frame (9) is fixedly connected with a bottom block (10), the side away from each other of the two sliding frames (2) is rotatably connected with a lead screw (11), the outer side of the lead screw (11) is threadedly connected with a moving seat (12), the top of the moving seat (12) is fixedly connected with a first air cylinder (13), the top of the first air cylinder (13) is fixedly connected with a push block (14), the end away from the fixed seat (1) of the two sliding frames (2) is fixedly connected with the same side seat (15).

2. The high-efficiency washing and dewatering environmental protection filter press according to claim 1, characterized in that, The side away from the fixed seat (1) of the side seat (15) is fixedly connected with a feeding pipe (16), the position of the feeding pipe (16) is adapted to the flow hole (7).

3. The high-efficiency washing and dewatering environmental protection filter press according to claim 1, characterized in that, The side close to the side seat (15) of the fixed seat (1) is fixedly connected with a second air cylinder, the output end of the second air cylinder is fixedly connected with a pressing plate (18).

4. The high-efficiency washing and dewatering environmental protection filter press according to claim 3, characterized in that, Both sides of the pressing plate (18) are fixedly connected with clamping frames, the two clamping frames are slidably connected to the top ends of the two sliding frames (2) respectively.

5. The high-efficiency washing and dewatering environmental protection filter press according to claim 1, characterized in that, The outer side of the sliding frame (2) is fixedly connected with a motor, the output end of the motor is fixedly connected with the lead screw (11).

6. The high-efficiency washing and dewatering environmental protection filter press according to claim 1, characterized in that, The size of the filter cloth (5) is the same as that of the filter plate (3), the outer block (6) is bolted on the outer side of the corresponding fixed block (4).

7. The high-efficiency washing and dewatering environmental protection filter press according to claim 1, characterized in that, The bottom end of the side adjacent to the fixed seat (1) of the side seat (15) is fixedly connected with the same storage groove (17).