A chelating dispersant pressure filter device

By using servo electric push rods and electro-hydraulic push rods to drive the stirring blades, the problem of insufficient mixing of chelating dispersant liquid is solved, realizing automated stirring and automatic cleaning of filter cake, and improving the working efficiency of the filter press.

CN224450345UActive Publication Date: 2026-07-03WUXI KAILAI BIOTECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI KAILAI BIOTECHNOLOGY CO LTD
Filing Date
2025-08-08
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Chelating dispersant liquids are not fully mixed during pressure filtration, requiring manual stirring. The filter cake after pressure filtration is inconvenient to clean, resulting in low work efficiency.

Method used

The mixing blades are driven by servo electric push rods and electro-hydraulic push rods, and the filter cake is ejected by pneumatic push rods, achieving automated mixing and cleaning.

Benefits of technology

It achieves thorough mixing of the chelating dispersant and the liquid, and the automated operation improves work efficiency and simplifies the filter cake cleaning process.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224450345U_ABST
    Figure CN224450345U_ABST
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Abstract

This utility model belongs to the field of filter press technology, and in particular to a chelating dispersant filter press device, including a workbench. A mounting frame is fixedly installed on one side of the workbench surface. A circulating water tank is provided on the top of the mounting frame. A limiting block is fixedly connected to the inner surface of the mounting frame. A first servo electric push rod and a second servo electric push rod are respectively connected to the two sides inside the limiting block. One end of the first servo electric push rod is connected to a first movable block. The second servo electric push rod pushes the first movable block to the top of the filter press barrel. A motor drives the rotating shaft and the first electro-hydraulic push rod to rotate, ensuring thorough mixing without manual stirring, thus improving work efficiency. After filtration, the liquid is discharged through a drain pipe. The filter cake produced after filtration remains on the surface of the top plate. A pneumatic push rod pushes the top plate upward, thereby pushing the filter cake out of the filter barrel for easy cleaning by staff.
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Description

Technical Field

[0001] This utility model belongs to the field of pressure filtration technology, specifically relating to a chelating dispersant pressure filtration device. Background Technology

[0002] Chelating dispersants are highly efficient and versatile organic chelates. They can soften water, have strong chelating power for metal ions and scum dispersing power, prevent the formation of precipitates and scum from other contaminants during dyeing and finishing processes, and slowly dissolve and remove silica scale, calcium soap precipitates, and oligomers from equipment. They prevent metal salts from re-contaminating various fibers, improve the whiteness, brightness, and color fastness of bleached, dyed, and printed products, and prevent re-contamination of the white base of printed and yarn-dyed products. The physicochemical properties of chelating dispersants play a significant role in the textile printing and dyeing industry. Besides chelating dispersants, many other auxiliaries are used in the textile industry. Pressure filtration is an industrial technology that uses the pressure difference formed on both sides of a porous medium to achieve solid-liquid separation. It is widely used in chemical, pharmaceutical, and wastewater treatment fields. Its core equipment, the plate and frame filter press, uses alternating filter plates and frames to form a closed filtration unit, capable of handling highly viscous fine particles and achieving intermittent operation.

[0003] Currently, when chelating dispersant liquids are used for pressure filtration, the chelating dispersant and the liquid are not mixed sufficiently, requiring manual stirring. The filter cake after pressure filtration is also inconvenient to clean, resulting in low work efficiency. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model provides a chelating dispersant pressure filter device, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a chelating dispersant pressure filter device, comprising a workbench, an installation frame fixedly installed on one side of the workbench surface, a circulating water tank provided on the top of the installation frame, a limiting block fixedly connected to the inner surface of the installation frame, a first servo electric push rod and a second servo electric push rod respectively connected to the two sides inside the limiting block, a first movable block connected to one end of the first servo electric push rod, a second movable block connected to one end of the second servo electric push rod, a second electro-hydraulic push rod connected to one side of the bottom of the second movable block, a filter plate connected to one end of the second electro-hydraulic push rod, a filter press barrel provided in the middle of the workbench surface, a limiting groove provided inside the limiting block, and the surface of the limiting groove slidingly connected to the surfaces of the first movable block and the second movable block.

[0006] Preferably, a pneumatic push rod is installed in the middle of the lower surface of the workbench, and one end of the pneumatic push rod passes through the bottom of the filter press and is connected to a top plate.

[0007] Preferably, a sealing ring is connected to the outer surface of the filter plate.

[0008] Preferably, a motor is connected to one side of the bottom of the first movable block, the output end of the motor is connected to a rotating shaft, one end of the rotating shaft is connected to a first electro-hydraulic push rod, and a stirring blade is connected to the surface of the first electro-hydraulic push rod.

[0009] Preferably, a water pump is installed on one side of the surface of the circulating water tank, a water pumping pipe is connected to one side of the inside of the circulating water tank, a water injection pipe is connected to one end of the inside of the circulating water tank, and the other end of the water injection pipe is connected to one side of the inside of the filter press barrel.

[0010] Preferably, one end of the filter press barrel is connected to a drain pipe, and a valve is provided on one side of the surface of the drain pipe.

[0011] Preferably, each of the four corners of the bottom of the workbench is fixedly connected to a support leg, and one end of each support leg is fixedly connected to a support base.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The first movable block is pushed to the top of the filter press barrel by the second servo electric push rod. The motor drives the rotating shaft and the first electro-hydraulic push rod to rotate. The first electro-hydraulic push rod pushes the stirring blades downward to fully contact the sewage and chelating dispersant liquid. During the rotation, the stirring blades rotate and agitate the sewage and chelating dispersant, so that they are fully mixed. No manual stirring is required, which improves work efficiency. After filtration, the liquid is discharged through the drain pipe. The filter cake produced after filtration will remain on the surface of the top plate. The pneumatic push rod pushes the top plate to rise, thereby pushing the filter cake out of the filter barrel for easy cleaning by the staff. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the mounting frame of this utility model;

[0017] Figure 3 This is a cross-sectional view of the present invention;

[0018] Figure 4 This is a schematic diagram of the limiting block of this utility model;

[0019] Figure 5This is a schematic diagram of the ejector plate of this utility model;

[0020] Figure 6 This is a schematic diagram of the stirring blade of this utility model;

[0021] Figure 7 This is a schematic diagram of the filter plate of this utility model.

[0022] In the diagram: 1. Workbench; 2. Mounting frame; 3. Circulating water tank; 4. Pumping pipe; 5. Support leg; 6. Support base; 7. Water pump; 8. Limiting block; 9. Water injection pipe; 10. Filter press; 11. Valve; 12. Drain pipe; 13. Pneumatic push rod; 14. First servo electric push rod; 15. Motor; 16. Second servo electric push rod; 17. First movable block; 18. Limiting groove; 19. Second movable block; 20. Ejector plate; 21. First electro-hydraulic push rod; 22. Rotating shaft; 23. Agitator blade; 24. Filter plate; 25. Sealing ring; 26. Second electro-hydraulic push rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-7 The present invention provides the following technical solution: a chelating dispersant pressure filter device, comprising a workbench 1, an installation frame 2 fixedly installed on one side of the surface of the workbench 1, a circulating water tank 3 provided on the top of the installation frame 2, a limiting block 8 fixedly connected to the inner surface of the installation frame 2, a first servo electric push rod 14 and a second servo electric push rod 16 respectively connected to the two sides inside the limiting block 8, a first movable block 17 connected to one end of the first servo electric push rod 14, a second movable block 19 connected to one end of the second servo electric push rod 16, a second electro-hydraulic push rod 26 connected to one side of the bottom of the second movable block 19, a filter plate 24 connected to one end of the second electro-hydraulic push rod 26, a filter barrel 10 provided in the middle of the surface of the workbench 1, a limiting groove 18 opened inside the limiting block 8, and the surface of the limiting groove 18 slidingly connected to the surfaces of the first movable block 17 and the second movable block 19.

[0025] In this embodiment: after the filter press is completed, the top plate 20 and the filter cake are pushed up by the pneumatic push rod 13, which makes it convenient for the staff to quickly process the filter cake after the filter press.

[0026] In this embodiment, the sealing ring 25 dynamically seals the inner wall of the filter press barrel 10 during the compression process, effectively preventing leakage and reducing the moisture content of the filter cake.

[0027] In this embodiment: the motor 15 drives the rotating shaft 22 to rotate the stirring blade 23, which mixes the chelating dispersant and slurry in the filter press 10 in real time to prevent solid deposition.

[0028] In this embodiment: wastewater is quickly injected into the filter press 10 through the water injection pipe 9 to improve working efficiency, and the filtered water is discharged through the drain pipe 12 to achieve continuous operation.

[0029] In this embodiment, the support base 6 can increase the contact area between the support leg 5 and the ground, and the stability of the device can be improved by cooperating with the correspondingly installed support leg 5.

[0030] The working principle and usage process of this utility model are as follows: After the utility model is installed, the chelating dispersant is poured into the inside of the filter press 10. The water pump 4 is connected to the sewage outlet, and the water pump 7 is started to drive the water pump 4 to pump the sewage into the circulating water tank 3. The sewage in the circulating water tank 3 will flow into the inside of the filter press 10 through the water injection pipe 9. After the filter press 10 is filled with water, the water pump 7 is turned off, and the second servo electric push rod 16 is started to push the first movable block 17 forward along the limiting groove 18. After the first movable block 17 is moved to the top of the filter press 10, the second servo electric push rod 16 is turned off, and the first electric hydraulic push rod 21 is started to push the stirring blade 23 downward. After the stirring blade 23 is in full contact with the sewage, the motor 15 is started to drive the rotating shaft 22 to rotate, thereby driving the stirring blade 23 to rotate. The stirring blade 23 stirs the sewage inside the filter press 10, making it fully mixed with the chelating dispersant. After mixing is completed, the motor 15 is turned off. Conversely, the first electric hydraulic push rod 21 drives the first moving shaft 22 to rotate. The stirring blade 2 rises, driving the first movable block 17 to move backward along the limiting groove 18 via the second servo electric push rod 16. Similarly, the first servo electric push rod 14 is activated, pushing the second movable block 19 forward along the limiting groove 18. After the movable block 19 is moved directly above the filter press tank 10, the second electric hydraulic push rod 26 is activated, pushing the filter plate 24 and sealing ring 25 downward. The filter plate 24 continuously presses down to squeeze and filter the sewage. When the filter plate 24 stops moving, valve 1 is opened. 1. Place the filtered water into the corresponding container. After the water is drained, reverse the process. The second electric hydraulic push rod 26 drives the filter plate 24 and the sealing ring 25 to rise. The first servo electric push rod 14 drives the second movable block 19 to move backward along the limiting groove 18. The pneumatic push rod 13 is activated to push out the filtered cake. The operator can then remove the filter cake. All electrical equipment in this device is powered by an external power source. All motors or electric push rods in this paper are controlled by a PLC control system.

[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A chelating dispersant filter press apparatus comprising a worktable (1), characterised in that: A mounting frame (2) is fixedly installed on one side of the surface of the workbench (1). A circulating water tank (3) is provided on the top of the mounting frame (2). A limiting block (8) is fixedly connected to the inner surface of the mounting frame (2). A first servo electric push rod (14) and a second servo electric push rod (16) are respectively connected to the two sides inside the limiting block (8). A first movable block (17) is connected to one end of the first servo electric push rod (14). A second movable block (19) is connected to one end of the second servo electric push rod (16). A second electric hydraulic push rod (26) is connected to one side of the bottom of the second movable block (19). A filter plate (24) is connected to one end of the second electric hydraulic push rod (26). A filter press (10) is provided in the middle of the surface of the workbench (1). A limiting groove (18) is opened inside the limiting block (8), and the surface of the limiting groove (18) is slidably connected to the surface of the first movable block (17) and the second movable block (19).

2. A chelating dispersant pressure filter apparatus according to claim 1, wherein: A pneumatic push rod (13) is installed in the middle of the lower surface of the workbench (1), and one end of the pneumatic push rod (13) passes through the bottom of the filter press (10) and is connected to the top plate (20).

3. A chelating dispersant pressure filter apparatus according to claim 1, wherein: A sealing ring (25) is connected to the outer surface of the filter plate (24).

4. A chelating dispersant pressure filter apparatus according to claim 1, wherein: A motor (15) is connected to one side of the bottom of the first movable block (17). The output end of the motor (15) is connected to a rotating shaft (22). One end of the rotating shaft (22) is connected to a first electric hydraulic push rod (21). A stirring blade (23) is connected to the surface of the first electric hydraulic push rod (21).

5. A chelating dispersant pressure filter apparatus according to claim 1, wherein: A water pump (7) is installed on one side of the surface of the circulating water tank (3), a water pumping pipe (4) is connected to one side of the inside of the circulating water tank (3), a water injection pipe (9) is connected to one end of the inside of the circulating water tank (3), and the other end of the water injection pipe (9) is connected to one side of the inside of the filter press (10).

6. A chelating dispersant pressure filter apparatus according to claim 1, wherein: One end of the filter press (10) is connected to a drain pipe (12), and a valve (11) is provided on one side of the surface of the drain pipe (12).

7. A chelating dispersant pressure filter apparatus according to claim 1, wherein: The workbench (1) has four fixed support legs (5) at the bottom corners, and a support base (6) is fixedly connected to one end of each support leg (5).