Filter cloth cleaning device of plate-and-frame filter press

By designing a mobile filter cloth cleaning device, which utilizes a gantry frame and a motor-driven rotating roller brush to spray cleaning liquid, the high cost problem caused by the fixed cleaning device of the plate and frame filter press is solved, achieving the effects of flexible cleaning and cost reduction.

CN224113393UActive Publication Date: 2026-04-14JIANGSU HONGAN BIOTECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The existing plate and frame filter presses are equipped with fixed filter cloth cleaning devices, which increases the initial investment cost and maintenance cost of the equipment, resulting in high cleaning costs and affecting the economic benefits of enterprises.

Method used

A mobile filter cloth cleaning device was designed. It uses a combination of gantry frame, roller brush, nozzle and liquid pump, and uses casters and cylinders to move flexibly. The motor drives the roller brush to rotate and spray cleaning liquid, which reduces the fixed installation requirements of the equipment.

Benefits of technology

It achieves a flexible cleaning effect that can be moved between multiple plate and frame filter presses, reducing production costs and avoiding the high initial investment and maintenance costs associated with fixed cleaning devices, thereby improving the economic benefits of enterprises.

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Abstract

The utility model provides a filter cloth cleaning device of a plate-and-frame filter press, which relates to the technical field of the filter cloth cleaning device of the plate-and-frame filter press, and comprises two bases, a throttling structure is arranged on the two bases, the throttling structure mainly comprises two portal frames, and the portal frames are arranged on the two bases. The two portal frames are slidably connected to the two bases, the bases are rotationally connected with two universal wheels, the portal frames are fixedly connected with first air cylinders, piston rods of the first air cylinders are fixedly connected with mounting plates, the mounting plates are rotationally connected with rolling brushes through bearings, the mounting plates are fixedly connected with first motors, and the first motors are fixedly connected with second motors. According to the plate-and-frame filter press, the problems that as most of existing plate-and-frame filter presses are provided with fixed cleaning devices, the initial investment cost of equipment can be increased, the cleaning cost is high, and negative effects are generated on economic benefits of enterprises are solved.
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Description

Technical Field

[0001] This utility model relates to the technical field of filter cloth cleaning devices for plate and frame filter presses, and in particular to a filter cloth cleaning device for plate and frame filter presses. Background Technology

[0002] In various industrial plants, plate and frame filter presses are commonly used solid-liquid separation equipment. In the chemical industry, they are used to separate solids and liquids in the production process of chemical raw materials. Filter cloth is one of the core components of plate and frame filter presses to achieve solid-liquid separation. It comes into direct contact with the material being filtered and blocks solid particles through its microporous structure, allowing liquid to pass through. However, during the filtration process, due to the complexity of the material being filtered, such as the presence of fine particles, colloidal substances, and organic matter, the filter cloth is prone to clogging. Therefore, a filter cloth cleaning device is needed to clean it.

[0003] Most plate and frame filter presses currently available are equipped with fixed cleaning devices. Equipping these devices increases the initial investment cost, as it requires purchasing specific components for each device, such as cleaning nozzles and cleaning fluid supply systems. Furthermore, the failure rate of these built-in cleaning devices increases with the age of the equipment, leading to higher maintenance costs. In industrial production, cost control is a crucial factor. For plants with multiple plate and frame filter presses, the high initial investment in cleaning devices for each machine results in persistently high cleaning costs, negatively impacting the company's economic performance. Therefore, an innovative cleaning solution is needed to reduce costs. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a filter cloth cleaning device for a plate and frame filter press.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a filter cloth cleaning device for a plate and frame filter press, comprising two bases, both bases sharing a throttling structure, the throttling structure mainly consisting of two gantry frames, both gantry frames being slidably connected to the two bases, two universal wheels being rotatably connected to each base, a first cylinder being fixedly connected to each gantry frame, an mounting plate being fixedly connected to the piston rod of the first cylinder, a roller brush being rotatably connected to the mounting plate via bearings, a first motor being fixedly connected to the mounting plate, the roller brush being driven to rotate by the first motor, a cleaning pipe being fixedly connected to the mounting plate, the cleaning pipe being provided with several nozzles, a storage tank being fixedly connected to one of the bases, a liquid pump being fixedly connected to the storage tank, two hoses being fixedly connected to the output end of the liquid pump, one end of each hose being fixedly connected to the cleaning pipe.

[0006] The aforementioned components achieve the following effect: The operator moves the two bases to both sides of the plate and frame filter press, positioning the two gantry frames above the press. The filter cloths are moved one by one to the center of the two gantry frames. Then, the two first cylinders are activated, causing the mounting plates to descend. The two gantry frames are then slid closer together, ensuring a suitable distance between the roller brush and the filter cloth. The first motor is then activated, rotating the roller brush to clean the filter cloth. The liquid pump is then activated, pumping the cleaning solution from the storage tank through two hoses to the corresponding cleaning pipes. The dry nozzles spray onto the filter cloth, and the nozzles work in conjunction with the roller brushes to achieve better cleaning results. The device can be moved along the gantry frame using casters, allowing for flexible movement between multiple plate and frame filter presses within the factory. When the filter cloth of a plate and frame filter press needs cleaning, the cleaning device can quickly move to that location for cleaning, reducing production costs. This avoids the situation where most current plate and frame filter presses are equipped with fixed cleaning devices, which increases the initial investment cost of the equipment and leads to high cleaning costs, negatively impacting the company's economic benefits.

[0007] Preferably, two sliding rods are slidably inserted on the gantry frame, and the sliding rods are fixedly connected to the mounting plate.

[0008] The effect achieved by the above components is that the movement of the mounting plate is more stable under the limitation of the two sliding rods.

[0009] Preferably, a limiting block is fixedly connected to the gantry frame, and the flexible hose is movably inserted into the limiting block.

[0010] The effect achieved by the above components is that the limiting block can limit the hose and prevent the hose from dragging on the ground and affecting the operation of the equipment.

[0011] Preferably, a stirrer is fixedly connected to the storage tank, and a plurality of ball bearings are provided in the limiting block.

[0012] The effects achieved by the above components are as follows: the agitator can stir the cleaning solution in the storage tank, making the cleaning solution more uniformly mixed, and the ball bearings can reduce the friction of the limiting block on the hose, preventing excessive wear on the hose.

[0013] Preferably, a bidirectional screw is rotatably connected to one of the bases via a bearing. The two sections of the bidirectional screw have opposite thread directions. The bidirectional screw is threadedly connected to two gantry frames. A second motor is fixedly connected to one of the bases, and the bidirectional screw is driven to rotate by the second motor.

[0014] The effects achieved by the above components are as follows: rotating the bidirectional screw can drive the two gantry frames to slide synchronously, making the adjustment operation more convenient; the output end of the second motor can be connected to the bidirectional screw through a reducer, and starting the second motor can drive the bidirectional screw to rotate, making the operation more convenient.

[0015] Preferably, the base is provided with a limiting structure, which is mainly composed of a second cylinder. The second cylinder is fixedly connected to the base, and a rectangular plate is fixedly connected to the piston rod of the second cylinder.

[0016] The effect achieved by the above components is as follows: when the second cylinder is activated, the piston rod of the second cylinder can drive the rectangular plate to descend, which can limit the universal wheels and prevent the device from moving during the cleaning process.

[0017] Preferably, two limiting rods are slidably inserted into the rectangular plate, and a limiting plate is fixedly connected to both limiting rods. A rubber block is fixedly connected to the limiting plate.

[0018] The effect achieved by the above components is that the two limiting rods slide downwards, causing the limiting plate to contact the ground, and the rubber block can increase the friction with the ground, making the limiting more stable.

[0019] Preferably, a spring is sleeved on the limiting rod, one end of the spring is fixedly connected to the limiting plate, and the other end of the spring is fixedly connected to the rectangular plate.

[0020] The effect achieved by the above components is that when the limiting plate is positioned on the ground, the two springs are in a contracted state, so the spring rebound force acts on the limiting plate, further improving the stability of the limiting position.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows: In this utility model, by setting a throttling structure, the operator moves two bases to both sides of the plate and frame filter press, so that two gantry frames are erected above the plate and frame filter press. The filter cloths are moved one by one to the middle of the two gantry frames. Then, the two first cylinders are activated, causing the two first cylinders to drive the mounting plate to descend. The two gantry frames are then slid closer together, so that the distance between the roller brush and the filter cloth is appropriate. The first motor is started, and the first motor drives the roller brush to rotate, cleaning the filter cloth. The liquid pump is started, and the liquid pump pumps the cleaning liquid in the storage tank through two hoses. The cleaning fluid is pumped into the corresponding cleaning pipe and sprayed onto the filter cloth through several nozzles. The nozzles and roller brush work together to achieve better cleaning results. The device can be moved by casters to the gantry frame, allowing it to move flexibly between multiple plate and frame filter presses in the factory. When the filter cloth of a plate and frame filter press needs cleaning, the cleaning device can quickly move to that location for cleaning, reducing production costs. This avoids the situation where most plate and frame filter presses are equipped with fixed cleaning devices, which would increase the initial investment cost of the equipment and make cleaning costs high, negatively impacting the economic benefits of the enterprise. Attached Figure Description

[0022] Figure 1 This utility model provides a three-dimensional structural diagram of a filter cloth cleaning device for a plate and frame filter press;

[0023] Figure 2 This utility model presents a three-dimensional structural schematic diagram of a filter cloth cleaning device for a plate and frame filter press from another perspective.

[0024] Figure 3 This utility model provides a partial schematic diagram of the throttling structure of a filter cloth cleaning device for a plate and frame filter press.

[0025] Figure 4 This utility model presents a partial schematic diagram of the limiting structure of a filter cloth cleaning device for a plate and frame filter press.

[0026] Legend: 1. Base; 2. Throttling structure; 21. Gantry frame; 22. First cylinder; 23. Mounting plate; 24. Roller brush; 25. First motor; 26. Cleaning pipe; 27. Nozzle; 28. Slide bar; 29. ​​Storage tank; 210. Agitator; 211. Liquid pump; 212. Limiting block; 213. Ball bearing; 214. Hose; 215. Bidirectional screw; 216. Second motor; 217. Caster wheel; 3. Limiting structure; 31. Second cylinder; 32. Rectangular plate; 33. Limiting rod; 34. Limiting plate; 35. Rubber block; 36. Spring. Detailed Implementation

[0027] Example 1, such as Figure 1As shown, a filter cloth cleaning device for a plate and frame filter press includes two bases 1.

[0028] Reference Figure 2 and Figure 3Two bases 1 are equipped with a throttling structure 2, which mainly consists of two gantry frames 21. Both gantry frames 21 are slidably connected to the two bases 1. Two casters 217 are rotatably connected to the bases 1. A first cylinder 22 is fixedly connected to the gantry frame 21. A mounting plate 23 is fixedly connected to the piston rod of the first cylinder 22. A roller brush 24 is rotatably connected to the mounting plate 23 via bearings. A first motor 25 is fixedly connected to the mounting plate 23, driving the roller brush 24 to rotate. A cleaning pipe 26 is fixedly connected to the mounting plate 23, and several nozzles 27 are provided on the cleaning pipe 26. A storage tank 29 is fixedly connected to one base 1. A liquid pump 211 is fixedly connected to the 9th plate and frame filter press. Two hoses 214 are fixedly connected to the output end of the liquid pump 211. One end of each hose 214 is fixedly connected to the cleaning pipe 26. The operator moves the two bases 1 to both sides of the plate and frame filter press, so that the two gantry frames 21 are set up above the plate and frame filter press. The filter cloths are moved one by one to the middle of the two gantry frames 21. Then, the two first cylinders 22 are started, so that the two first cylinders 22 drive the mounting plate 23 to descend. Then, the two gantry frames 21 are slid closer to each other, so that the distance between the roller brush 24 and the filter cloth is appropriate. The first motor 25 is started, and the first motor 25 drives the roller brush 24 to rotate, cleaning the filter cloth. The liquid pump 211 is then started.The liquid pump 211 pumps the cleaning solution from the storage tank 29 through two hoses 214 to the corresponding cleaning pipes 26, and sprays it onto the filter cloth through several nozzles 27. The nozzles 27 work in conjunction with the roller brush 24 to achieve better cleaning results. The gantry frame 21 can be moved by the casters 217, allowing for flexible movement between multiple plate and frame filter presses in the factory. When the filter cloth of a plate and frame filter press needs cleaning, the cleaning device can quickly move to that location for cleaning, reducing production costs. This avoids the situation where most plate and frame filter presses are equipped with fixed cleaning devices, which increases the initial investment cost of the equipment and makes cleaning costs high, negatively impacting the economic benefits of the enterprise. Two sliding rods 28 are slidably inserted on the gantry frame 21, and the sliding rods 28 are fixedly connected to the mounting plate 23. The mounting plate 23 is limited by the two sliding rods 28, making the movement process more stable. A limit block 212 is fixedly connected to the gantry frame 21, and the hose 214 is movably inserted into the limit block 212 to limit the movement. Block 212 can limit the hose 214 to prevent it from dragging on the ground and affecting equipment operation. An agitator 210 is fixedly connected to the storage tank 29. Several ball bearings 213 are provided in the limiting block 212. The agitator 210 can stir the cleaning solution in the storage tank 29, making the cleaning solution more evenly mixed. The ball bearings 213 can reduce the friction between the limiting block 212 and the hose 214, preventing excessive wear on the hose 214. A bidirectional screw 215 is rotatably connected to a base 1 via a bearing. The screw 215 has two sections with opposite thread directions. The bidirectional screw 215 is threadedly connected to two gantry frames 21. A second motor 216 is fixedly connected to a base 1. The bidirectional screw 215 is driven to rotate by the second motor 216. Rotating the bidirectional screw 215 causes the two gantry frames 21 to slide synchronously, making adjustment easier. The output end of the second motor 216 can be connected to the bidirectional screw 215 via a reducer. Starting the second motor 216 drives the bidirectional screw 215 to rotate, further facilitating operation.

[0029] Reference Figure 4A limiting structure 3 is provided on the base 1. The limiting structure 3 mainly consists of a second cylinder 31, which is fixedly connected to the base 1. A rectangular plate 32 is fixedly connected to the piston rod of the second cylinder 31. When the second cylinder 31 is activated, the piston rod of the second cylinder 31 can drive the rectangular plate 32 to descend, which can limit the universal wheel 217 and prevent the device from moving during the cleaning process. Two limiting rods 33 are slidably inserted on the rectangular plate 32. A limiting plate 34 is fixedly connected to both limiting rods 33. A rubber block 35 is fixedly connected, and two limiting rods 33 slide downwards, so that the limiting plate 34 contacts the ground. The rubber block 35 can increase the friction with the ground, making the limiting more stable. A spring 36 is sleeved on the limiting rod 33. One end of the spring 36 is fixedly connected to the limiting plate 34, and the other end of the spring 36 is fixedly connected to the rectangular plate 32. When the limiting plate 34 is limited to the ground, the two springs 36 are in a contracted state. Therefore, the rebound force of the springs 36 acts on the limiting plate 34, further improving the stability of the limiting.

[0030] Working principle: The operator moves the two bases 1 to both sides of the plate and frame filter press, so that the two gantry frames 21 are set up above the plate and frame filter press. The filter cloths are moved one by one to the middle of the two gantry frames 21. Then, the two first cylinders 22 are activated, causing the two first cylinders 22 to drive the mounting plate 23 to descend. The two gantry frames 21 are then slid closer together, so that the distance between the roller brush 24 and the filter cloth is appropriate. The first motor 25 is started, and the first motor 25 drives the roller brush 24 to rotate, cleaning the filter cloth. The liquid pump 211 is started, and the liquid pump 211 pumps the cleaning solution in the storage tank 29 through two hoses 214 to the filter cloth. The cleaning device is installed in the corresponding cleaning pipe 26 and sprayed onto the filter cloth through several nozzles 27. The nozzles 27 work in conjunction with the roller brush 24 to achieve better cleaning results. The gantry frame 21 can be moved via casters 217, allowing for flexible movement between multiple plate and frame filter presses within the factory. When the filter cloth of a plate and frame filter press needs cleaning, the cleaning device can quickly move to that location for cleaning, reducing production costs. This avoids the situation where most plate and frame filter presses are equipped with fixed cleaning devices, which increases the initial investment cost and keeps cleaning costs high, negatively impacting the company's economic benefits. In the event of negative impacts, the mounting plate 23, limited by the two sliding rods 28, makes the movement process more stable. The limiting block 212 can limit the hose 214 to prevent it from dragging on the ground and affecting equipment operation. The agitator 210 can agitate the cleaning fluid in the storage tank 29, making the cleaning fluid more evenly mixed. The ball bearing 213 can reduce the friction of the limiting block 212 on the hose 214, preventing excessive wear on the hose 214. Rotating the bidirectional screw 215 can drive the two gantry frames 21 to slide synchronously, making the adjustment operation more convenient. The output end of the second motor 216 can be connected to the reducer via a shaft. The bidirectional screw 215 is connected, and the second motor 216 is started, which can drive the bidirectional screw 215 to rotate, making the operation more convenient. The second cylinder 31 is started, and the piston rod of the second cylinder 31 can drive the rectangular plate 32 to descend, which can limit the universal wheel 217 to prevent the device from moving during the cleaning process. The two limit rods 33 slide down, so that the limit plate 34 contacts the ground. The rubber block 35 can increase the friction with the ground, making the limit more stable. When the limit plate 34 is limited to the ground, the two springs 36 are in a contracted state. Therefore, the rebound force of the springs 36 acts on the limit plate 34, further improving the stability of the limit.

[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A filter cloth cleaning device for a plate and frame filter press, comprising two bases (1), characterized in that: A throttling structure (2) is provided on both bases (1). The throttling structure (2) is mainly composed of two gantry frames (21). The two gantry frames (21) are slidably connected to the two bases (1). Two universal wheels (217) are rotatably connected to the bases (1). A first cylinder (22) is fixedly connected to the gantry frame (21). A mounting plate (23) is fixedly connected to the piston rod of the first cylinder (22). A roller brush (24) is rotatably connected to the mounting plate (23) through a bearing. A first motor (25) is fixedly connected to the base (1), and the roller brush (24) is driven to rotate by the first motor (25). A cleaning pipe (26) is fixedly connected to the mounting plate (23), and a number of nozzles (27) are provided on the cleaning pipe (26). A storage tank (29) is fixedly connected to the base (1), and a liquid pump (211) is fixedly connected to the storage tank (29). Two hoses (214) are fixedly connected to the output end of the liquid pump (211), and one end of the hose (214) is fixedly connected to the cleaning pipe (26).

2. The filter cloth cleaning device for a plate and frame filter press according to claim 1, characterized in that: Two sliding rods (28) are slidably inserted on the gantry frame (21), and the sliding rods (28) are fixedly connected to the mounting plate (23).

3. The filter cloth cleaning device for a plate and frame filter press according to claim 2, characterized in that: A limiting block (212) is fixedly connected to the gantry frame (21), and the flexible hose (214) is movably inserted into the limiting block (212).

4. The filter cloth cleaning device for a plate and frame filter press according to claim 3, characterized in that: A stirrer (210) is fixedly connected to the storage tank (29), and a number of ball bearings (213) are provided in the limiting block (212).

5. The filter cloth cleaning device for a plate and frame filter press according to claim 4, characterized in that: A bidirectional screw (215) is rotatably connected to a base (1) via a bearing. The two threads on the bidirectional screw (215) are in opposite directions. The bidirectional screw (215) is threadedly connected to two gantry frames (21). A second motor (216) is fixedly connected to a base (1). The bidirectional screw (215) is driven to rotate by the second motor (216).

6. The filter cloth cleaning device for a plate and frame filter press according to claim 5, characterized in that: The base (1) is provided with a limiting structure (3), which is mainly composed of a second cylinder (31). The second cylinder (31) is fixedly connected to the base (1), and a rectangular plate (32) is fixedly connected to the piston rod of the second cylinder (31).

7. The filter cloth cleaning device for a plate and frame filter press according to claim 6, characterized in that: Two limiting rods (33) are slidably inserted on the rectangular plate (32), and a limiting plate (34) is fixedly connected to both limiting rods (33). A rubber block (35) is fixedly connected to the limiting plate (34).

8. The filter cloth cleaning device for a plate and frame filter press according to claim 7, characterized in that: A spring (36) is sleeved on the limiting rod (33). One end of the spring (36) is fixedly connected to the limiting plate (34), and the other end of the spring (36) is fixedly connected to the rectangular plate (32).