Liquid-containing material filter pressing device

Abstract

The invention relates to the technical field of industrial sludge treatment, in particular to a liquid-containing material filter pressing device, which is characterized in that a conveying unit is used for conveying filter cloth and a liquid material between the filter cloth to a filter press; the feeding unit is matched with the conveying unit and is used for conveying a liquid material between the upper-layer filter cloth and the lower-layer filter cloth; the cloth folding unit comprises an upper cloth assembly and a lower cloth assembly, and the upper cloth assembly and the lower cloth assembly are used for supplying and conveying upper-layer filter cloth and lower-layer filter cloth respectively; the filter press is arranged at the tail end of the conveying unit and is used for applying extrusion force to the liquid material coated between the upper-layer filter cloth and the lower-layer filter part so as to carry out solid-liquid separation; the filter cloth cleaning unit is used for cleaning the recycled upper-layer filter cloth and lower-layer filter cloth; the control unit is electrically connected with the units and used for controlling the running state and working parameters of the equipment, the conveying and stacking mechanism of the filter cloth is optimized, it is guaranteed that the filter cloth is not prone to dislocation in the stacking process, and the solid-liquid separation process is more thorough.

Description

Technical Field

[0001] The invention relates to the technical field of industrial sludge treatment, and more specifically, to a liquid-containing material filter press device. Background Art

[0002] In the process of sewage treatment, the treatment and disposal of sludge is an important link that cannot be ignored. With the acceleration of industrialization and urbanization, the amount of sewage treatment has increased, and the sludge production has also shown an increasing trend year by year. How to efficiently and economically treat sludge, especially in the application of urban sewage treatment plants and industrial sewage treatment, has become a technical problem that needs to be solved urgently in the field of environmental protection.

[0003] Traditional sludge treatment methods include anaerobic digestion, drying, incineration, landfill and filter press, among which filter press technology, as a mature sludge dehydration method, has been widely used in various sewage treatment facilities. The filter press applies pressure to the sludge between the filter cloths to squeeze out the water in it and obtain the dehydrated sludge cake. Compared with other sludge treatment technologies, the filter press has the advantages of simple operation, low equipment cost and obvious treatment effect, and is widely used in large-scale sewage treatment and sludge concentration.

[0004] For example, announcement number CN110922018A discloses a laminated filter press equipment, which includes three major structural modules: a cloth stacking assembly, a mud distribution device and a pressing device, and a first telescopic drive device can drive the cloth stacking device to move toward the pressing device, so that the upper filter cloth and the lower filter cloth that move toward the pressing device and clamp the material can be reciprocatingly stacked on a liftable support plate below the pressing head. Therefore, the sludge to be dehydrated can be transported to the cloth stacking assembly through the mud distribution device, and then the upper filter cloth and the lower filter cloth that clamp the sludge are stacked and placed on the liftable support plate below the pressing head through the cloth stacking device. Finally, the sludge is filtered by lowering the pressure head, and the moisture content of different types of sludge can be directly dehydrated from about 80% to below 50%.

[0005] For example, the intelligent sludge treatment solid-liquid separation system disclosed in announcement number CN110526538A transmits the upper filter cloth and the lower filter cloth respectively through the guide roller system, and also includes a cloth pipe for conveying the material between the upper filter cloth and the lower filter cloth. The chain conveyor is also provided with a compression guide roller, and the upper filter cloth, the material and the lower filter cloth are compressed into a composite material layer through the compression guide roller. The solid-liquid separation filter press equipment is used to dehydrate the material to be dehydrated.

[0006] The above two prior arts have the following problems: during the sludge dewatering process, solid sludge particles will continuously accumulate on the surface of the filter cloth, and the filter cloth is prone to clogging, especially when it is continuously operated for a long time; and in the process of stacking the upper filter part and the lower filter cloth into layers, the front and rear misalignment area is large, resulting in low processing efficiency. Summary of the invention

[0007] To this end, the present invention provides a liquid material filter press device, which optimizes the conveying and stacking mechanism of the filter cloth, ensures that the filter cloth is not easily misplaced during the stacking process, makes the solid-liquid separation process more thorough, and can realize automatic cleaning of the filter cloth.

[0008] To achieve the above object, the present invention provides the following technical solutions: A liquid material filter press device, comprising A conveying unit, used for conveying the filter cloth and the liquid material between the filter cloths to the filter press; A feeding unit, cooperating with the conveying unit, is used to convey the liquid material between the upper filter cloth and the lower filter cloth; The cloth stacking unit comprises an upper cloth assembly and a lower cloth assembly, wherein the upper cloth assembly and the lower cloth assembly are used to supply and convey the upper filter cloth and the lower filter cloth respectively; A filter press, arranged at the end of the conveying unit, is used to apply extrusion force to the liquid material wrapped between the upper filter cloth and the lower filter part to separate the solid from the liquid; A separation unit is provided in the recovery path of the upper filter cloth and the lower filter cloth, and is used to peel off the solid materials on the surface of the filter cloth from the filter cloth; There are two filter cloth cleaning units, which are respectively arranged on the recovery paths of the upper filter cloth and the lower filter cloth, and are used to clean the recovered upper filter cloth and the lower filter cloth; The control unit is electrically connected to the above units and is used to control the operating status and working parameters of the equipment. A rack is used to house the above-mentioned units.

[0009] Furthermore: the conveying unit includes a first motor, a conveyor belt, and a movable frame for installing the conveyor belt. The movable frame is slidably connected to the slide rails arranged on the frame. The movable frame includes an upper supporting member and a lower supporting member, wherein the upper supporting member is above the lower supporting member and the length of the upper supporting member is greater than that of the lower supporting member. The conveyor belt covers the upper and lower end surfaces of the upper supporting member. A passive roller is provided at one end of the lower supporting member, and two symmetrical traction plates are provided at the other end. A movable notch is provided on the traction plate, and a traction wheel is movably connected in the movable notch. Furthermore, a traction unit for driving the movable frame to move is provided in front of the movable frame, and the traction unit includes a traction frame, a second motor, a gear, a chain and a traction shaft. There are four gears, which are respectively installed at the four corners of the traction frame. The two gears on the X-axis direction of the traction frame are connected by a chain, and the two gears on the Z-axis direction of the traction frame are connected by a traction shaft rod, and the traction shaft rod is connected to the traction frame for rotation. One end of the traction wheel is connected to the chain, and the output end of the second motor is connected to the traction shaft rod close to one side of the traction wheel.

[0010] Furthermore: the frame is provided with a plurality of rollers for the conveyor belt to pass through, and each roller is rotatably connected to the frame. The output end of the first motor is connected to the gear on the first shaft roller through a chain, The second roller and the third roller are on the same horizontal line in the Y-axis direction, and the second roller and the first roller are on the same horizontal line in the X-axis direction. A fourth roller is disposed on the end of the upper supporting member, and the fourth roller and the third roller are on the same horizontal line in the X-axis direction. The lower supporting member is also provided with two rollers for the conveyor belt to abut against.

[0011] Furthermore, the upper cloth assembly and the lower cloth assembly are respectively placed on the upper and lower sides of the movable frame and are symmetrically arranged. The upper cloth assembly and the lower cloth assembly each include a cloth rolling frame, a cloth rolling motor, a cloth rolling roller and a plurality of rollers. Both ends of the cloth winding roller are rotatably connected to the cloth winding frame, the output end of the cloth winding motor is connected to one end of the cloth winding roller, the roller is placed on the frame and rotatably connected to the bearing on the frame, the upper filter cloth and the lower filter cloth are respectively placed on the corresponding cloth winding rollers, the upper filter cloth and the lower filter cloth extend to the conveyor belt after bypassing each roller, and are pulled by the conveyor belt to run in the moving direction of the conveyor belt.

[0012] Furthermore: the separation unit includes a hopper and a scraper tool, the scraper tool is below the scraper tool at the feed inlet of the hopper, and the scraper tool is respectively placed on the recovery paths of the upper filter cloth layer and the lower filter cloth layer.

[0013] Further: the filter cloth cleaning unit includes a brushing group, a water control group and a vacuum water suction box through which the filter cloth passes in sequence; the brushing group includes a cleaning box, a lifting rod and a box cover; the box cover is slidably connected to the frame; the output end of the lifting rod is connected to the box cover; the cleaning box and the box cover are both provided with a brush roller rotatably connected thereto; the cleaning box and the box cover are provided with a third motor for driving the brush roller; the output end of the third motor is connected to one end of the brush roller through a transmission belt so as to drive the brush roller to rotate; The cleaning box is provided with box rollers at the ports for the upper filter cloth and the lower filter cloth to enter the box body. The cleaning box and the box cover are also provided with high-pressure pipes in a symmetrical relationship. A plurality of nozzles are provided on the high-pressure pipes. The high-pressure pipes are connected to a water source through a water pipe. A water outlet is provided on one side of the cleaning box, and the water outlet discharges waste water through a sewage pipe.

[0014] Furthermore: the water control group includes a water receiving box and a water control roller, the water control roller and the water receiving box are rotatably connected, the water control roller is close to the port of the cleaning box, and a drain outlet is opened at the bottom of the water receiving box, and the drain outlet discharges drain water through a drain pipe.

[0015] Furthermore: the frame is provided with two heavy rollers cooperating with the corresponding filter cloth cleaning units, the two heavy rollers are used to roll the upper filter cloth and the lower filter cloth respectively, and the heavy rollers are slidably connected to the frame.

[0016] Furthermore: the box cover is rotatably connected with an auxiliary roller, and the upper filter cloth and the lower filter cloth are connected with each roller after passing through the box roller through the auxiliary roller, and pass through the heavy roller during this period. When the lifting rod drives the box cover to rise and fall, the heavy roller will rise and fall with the upper filter cloth and the lower filter cloth.

[0017] Compared with the shortcomings of the prior art, the beneficial effects of the present invention are: The present invention realizes uniform feeding and up-and-down stacking of sludge inside the filter press by optimizing the transmission and stacking mechanism of the filter cloth. This design greatly improves the utilization rate of the filter cloth in the filter press, ensures that each layer of the filter cloth can evenly withstand the pressure, thereby greatly improving the solid-liquid separation efficiency, avoiding the problem of incomplete dehydration existing in traditional technologies, and ensuring that the moisture content of the sludge can be effectively reduced.

[0018] The combination of high-pressure water jets, brush rollers and vacuum water suction devices can achieve a more efficient and thorough cleaning effect, effectively remove sludge particles on the surface of the filter cloth, reduce the risk of filter cloth clogging, and extend the service life of the filter cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the present invention; Figure 2 It is a three-dimensional schematic diagram of the present invention; Figure 3 It is a partial schematic diagram of the present invention.

[0020] Frame 1, first motor 11, second motor 12, third motor 13, conveyor belt 2, upper filter cloth 21, lower filter cloth 22, movable frame 3, upper supporting member 31, lower supporting member 32, passive roller 33, traction plate 34, traction wheel 35, first roller 41, second roller 42, third roller 43, fourth roller 44, filter press 5, traction frame 6, upper cloth assembly 71, lower cloth assembly 72, cloth rolling frame 701, cloth rolling motor 702, cloth rolling roller 703, roller 704, hopper 81, scraper tool 82, washing group 9, water control group 10, vacuum water suction box 100, cleaning box 91, lifting rod 92, brush roller 93, box roller 94, high-pressure pipe 95, nozzle 96, water receiving box 101, water control roller 102, heavy roller 45, auxiliary roller 46. DETAILED DESCRIPTION

[0021] Reference Figures 1 to 3 The embodiments of the present invention are further described.

[0022] This embodiment describes the specific implementation of a liquid material filter press device constructed according to the technical solution of the claims. The device is used to perform efficient solid-liquid separation on liquid materials (such as sludge, suspended matter in wastewater treatment, etc.).

[0023] The conveying unit is used to convey the upper filter cloth, the lower filter cloth and the liquid material between the upper and lower filter cloths to the filter press.

[0024] The conveying unit includes: The first motor 11 provides power to drive the conveyor belt through the driving chain and gear system.

[0025] Conveyor belt 2: supported by the movable frame 3, carries the filter cloth and transports the material to the filter press along the track. The conveyor belt covers the upper and lower end surfaces of the upper supporting member 31.

[0026] The movable frame 3 is connected to the frame 1 through a slide rail and can slide along the frame 1. The movable frame 3 includes an upper supporting member 31 and a lower supporting member 32, which support and install the conveyor belt. A passive roller 33 is provided at one end of the lower supporting member 32, and two symmetrical traction plates 34 are provided at the other end. The traction plates are provided with a movable notch, and a traction wheel 35 is movably connected in the movable notch.

[0027] The frame 1 is provided with a number of rollers for the conveyor belt to pass through. Each roller is connected to the frame 1 through a bearing, which ensures the free rotation of the roller and ensures that the conveyor belt can pass smoothly. The position and number of the rollers are designed according to the width, load and transmission path of the conveyor belt to ensure that the conveyor belt does not deviate or slip during operation.

[0028] The output end of the first motor 11 is connected to the gear on the first shaft roller 41 through a chain. The second roller 42 and the third roller 43 are on the same horizontal line in the Y-axis direction, and the second roller 42 and the first roller 41 are on the same horizontal line in the X-axis direction. A fourth roller 44 is disposed on the end of the upper supporting member 31 . The fourth roller 44 and the third roller 43 are located on the same horizontal line in the X-axis direction. Two rollers for the conveyor belt to abut are also disposed on the lower supporting member 32 .

[0029] Movement process of the movable frame 3 and the conveyor belt 2: The first motor 11 is installed on the bottom of the frame 1, and then connected to the gear through a chain. The gear is placed on the first shaft roller 41, driving the conveyor belt 2 to move along the movable frame 3, and the filter cloth and the liquid material between the filter cloths are sent to the filter press 5. The conveyor belt 2 is covered by the upper supporting member 31 and the lower supporting member 32 to ensure the stability of the filter cloth during the movement.

[0030] The movable frame 3 moves with the conveyor belt 2 and is connected to the slide rail on the frame 1 , so that the conveyor belt 2 slides along a predetermined track to transport the filter cloth to the feed port of the filter press 5 .

[0031] The structure and function of the traction unit The traction unit includes a traction frame 6, a second motor 12, gears, chains and a traction shaft. There are four gears, which are respectively installed at the four corners of the traction frame 6. The two gears in the X-axis direction of the traction frame 6 are connected by a chain, and the two gears in the Z-axis direction of the traction frame 6 are connected by a traction shaft. The traction shaft is rotatably connected to the traction frame 6, one end of the traction wheel is connected to the chain, and the output end of the second motor 12 is connected to the traction shaft close to the side of the traction wheel.

[0032] During the conveying process, when the second motor 12 drives the chain to move, the traction wheel on the chain will move the traction plate 34, so that the traction plate 34 drives the movable frame 3 and the conveyor belt 2 forward to deliver the filter cloth into the filter press 5.

[0033] After the conveyor belt 2 reaches the entrance of the filter press 5, the second motor 12 drives in the reverse direction, and the traction plate 34 and the movable frame 3 move backward, bringing back the conveyor belt 2 and the filter cloth, returning to the starting position, and preparing for the next feeding.

[0034] Roller layout and movement process The first roller 41 and the second roller 42 are on the same horizontal line, and the third roller 43 and the fourth roller 44 are on the same horizontal line. Through the relationship between the upper and lower layers, the length of the conveyor belt is extended. The passive roller 33 is used to connect the first roller 41 and the fourth roller 44. The diameter of the passive roller 33 is larger than the diameter of other rollers, so that the conveyor belt is tensioned into four layers, so that when the components of the traction unit are running, the transmission belt has enough active length when it is carried by the traction frame 6. The passive roller 33 provides additional support force through its larger diameter, so that the conveyor belt always maintains a proper tension state under the drive of the traction unit. In particular, when the traction unit reverses and drives the filter cloth to retreat, the passive roller 33 ensures the smooth retreat of the conveyor belt by increasing the support area, and the filter cloth is not affected during the retreat process. In addition, the passive roller 33 can adjust its position to adjust the tension on the conveyor belt.

[0035] Structure and movement process of the stacking unit The cloth stacking unit is composed of an upper cloth assembly 71 and a lower cloth assembly 72, which are responsible for supplying and conveying the upper filter cloth and the lower filter cloth respectively. The upper cloth assembly 71 and the lower cloth assembly 72 are respectively arranged on the upper and lower sides of the movable frame 3.

[0036] Each cloth assembly includes a cloth rolling frame 701, a cloth rolling motor 702, a cloth rolling roller 703 and a plurality of rollers 704. The cloth rolling motor 702 drives the cloth rolling roller 703 to unfold the filter cloth and transport it to the conveyor belt.

[0037] The cloth rolling motor 702 drives the cloth rolling roller 703 , and the filter cloth is unwound from the cloth rolling frame 701 .

[0038] Both ends of the cloth rolling roller 703 are rotatably connected to the cloth rolling frame 701, the output end of the cloth rolling motor 702 is connected to one end of the cloth rolling roller 703, the roller 704 is placed on the frame 1 and is rotatably connected to the bearing on the frame, the upper filter cloth and the lower filter cloth are respectively placed on the corresponding cloth rolling roller 703, the upper filter cloth and the lower filter cloth extend to the conveyor belt 2 after bypassing each roller 704, and are pulled by the conveyor belt to run in the moving direction of the conveyor belt.

[0039] The conveyor belt 2 is driven by the traction unit to drive the filter cloth into the filter press 5 to start filtration.

[0040] The structure and movement process of the filter press The filter press is arranged at the end of the conveying unit, and its main function is to separate the liquid material into solid and liquid by applying pressure. The filter press head applies pressure to the liquid material between the upper filter cloth 71 and the lower filter cloth 72, and the liquid material is squeezed out of the water by the filter cloth to form a sludge cake.

[0041] After the cloth winder has finished putting the filter cloth into the filter press, the filter press head descends, and the filter press applies pressure to the liquid material between the filter cloths. As the pressure increases, the liquid is discharged, leaving solid sludge to form a sludge cake. There is a sewage outlet at the bottom of the filter press, which is connected to the sewage tank.

[0042] Structure and movement process of separation unit The function of the separation unit is to strip the solid materials accumulated on the filter cloth from the surface of the filter cloth. It includes a hopper 81 and a scraper 82, and the scraper is arranged in the recovery path to strip the solid materials on the surface of the filter cloth.

[0043] When the upper filter cloth 71 and the lower filter cloth 72 pass through the recovery path, the scraper 82 scrapes the sludge particles from the surface of the filter cloth through a downward movement and collects them into the hopper 81. The stripped solid material is discharged through the outlet of the hopper 81 and is ready to enter the next processing stage.

[0044] Structure and movement process of filter cloth cleaning unit The filter cloth cleaning unit comprises a washing group 9, a water control group 10 and a vacuum water suction box 100, which are used to clean the recovered filter cloth to ensure the cleanliness of the filter cloth and restore its water permeability.

[0045] The washing and brushing group 9 includes a washing box 91, a lifting rod 92 and a brush roller 93. The brush roller is driven by a third motor 13. The washing box and the box cover are provided with a third motor 13 for driving the brush roller. The output end of the third motor is connected to one end of the brush roller through a transmission belt so as to drive the brush roller to rotate for cleaning the filter cloth. The washing box 91 is provided with a box roller 94 at the port for the upper filter cloth 71 and the lower filter cloth 72 to enter the box body. The washing box and the box cover are also provided with a high-pressure pipe 95 in a symmetrical relationship. A plurality of nozzles 96 are provided on the high-pressure pipe. The high-pressure pipe is connected to a water source through a water pipe. A water outlet is provided on one side of the washing box, and the water outlet discharges waste water through a sewage pipe.

[0046] The water control group 10 includes a water receiving box 101 and a water control roller 102, which are used to discharge the water after cleaning. The water control roller 102 is rotatably connected to the water receiving box 101. The water control roller 102 is close to the port of the cleaning box 91. A drain outlet is provided at the bottom of the water receiving box 101, and the drain outlet discharges the water through a drain pipe.

[0047] Vacuum water absorption box 100: further absorbs the moisture on the filter cloth through the vacuum water absorption function.

[0048] After the upper filter cloth 71 and the lower filter cloth 72 enter the cleaning box 91, the lifting rod 92 controls the descent of the box cover, and the output end of the third motor 13 is connected to one end of the brush roller through a transmission belt, driving the brush roller to rotate and contact the filter cloth to remove the solid sludge on the filter cloth. At the same time, the nozzle 96 on the high-pressure pipe 95 sprays high-pressure water to clean the filter cloth.

[0049] The water after washing is discharged through the water control roller 102 and the water receiving box 101, and enters the vacuum water suction box 100 for further drainage.

[0050] The control unit is electrically connected to the above units to achieve unified control of the equipment. It can automatically adjust the working parameters of each unit according to the real-time operating status of the equipment (such as pressure, filter cloth moving speed, cleaning status, etc.).

[0051] The control unit monitors the speed of the conveyor belt, the tension of the filter cloth, the working pressure of the filter press and other parameters in real time.

[0052] According to the input operation data, the motor speed, filter cloth feed speed, cleaning frequency, etc. are controlled to ensure efficient and stable operation of the equipment.

[0053] The working states of the second motor 12 and the first motor 11 are automatically adjusted to achieve an efficient solid-liquid separation process according to different operation requirements.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A liquid material filter press device, characterized in that: include A conveying unit, used for conveying the filter cloth and the liquid material between the filter cloths to the filter press; A feeding unit, cooperating with the conveying unit, is used to convey the liquid material between the upper filter cloth and the lower filter cloth; The cloth stacking unit comprises an upper cloth assembly and a lower cloth assembly, wherein the upper cloth assembly and the lower cloth assembly are used to supply and convey the upper filter cloth and the lower filter cloth respectively; A filter press, arranged at the end of the conveying unit, is used to apply extrusion force to the liquid material wrapped between the upper filter cloth and the lower filter part to separate the solid from the liquid; A separation unit is provided in the recovery path of the upper filter cloth and the lower filter cloth, and is used to peel off the solid materials on the surface of the filter cloth from the filter cloth; There are two filter cloth cleaning units, which are respectively arranged on the recovery paths of the upper filter cloth and the lower filter cloth, and are used to clean the recovered upper filter cloth and the lower filter cloth; A control unit, electrically connected to the above units, for controlling the operating status and working parameters of the equipment; A rack is used to house the above-mentioned units.

2. A liquid material filter press device according to claim 1, characterized in that: The conveying unit includes a first motor, a conveyor belt, and a movable frame for mounting the conveyor belt. The movable frame is slidably connected to the slide rails arranged on the frame. The movable frame includes an upper supporting member and a lower supporting member, wherein the upper supporting member is above the lower supporting member and the length of the upper supporting member is greater than that of the lower supporting member. The conveyor belt covers the upper and lower end surfaces of the upper supporting member. A passive roller is arranged at one end of the lower supporting member, and two symmetrical traction plates are arranged at the other end. A movable notch is opened on the traction plate, and a traction wheel is movably connected in the movable notch.

3. A liquid material filter press device according to claim 2, characterized in that: A traction unit for driving the movable frame to move is provided in front of the movable frame, and the traction unit includes a traction frame, a second motor, a gear, a chain and a traction shaft. There are four gears, which are respectively installed at the four corners of the traction frame. The two gears on the X-axis direction of the traction frame are connected by a chain, and the two gears on the Z-axis direction of the traction frame are connected by a traction shaft rod, and the traction shaft rod is connected to the traction frame for rotation. One end of the traction wheel is connected to the chain, and the output end of the second motor is connected to the traction shaft rod close to one side of the traction wheel.

4. A liquid material filter press device according to claim 2, characterized in that: The frame is provided with a plurality of shaft rollers for the conveyor belt to pass through, and each shaft roller is rotatably connected to the frame. The output end of the first motor is connected to the gear on the first shaft roller through a chain, The second roller and the third roller are on the same horizontal line in the Y-axis direction, and the second roller and the first roller are on the same horizontal line in the X-axis direction. A fourth roller is disposed on the end of the upper supporting member, and the fourth roller and the third roller are on the same horizontal line in the X-axis direction. The lower supporting member is also provided with two rollers for the conveyor belt to abut against.

5. The liquid material filter press device according to claim 2, characterized in that: The upper cloth assembly and the lower cloth assembly are respectively placed on the upper and lower sides of the movable frame and are symmetrically arranged. The upper cloth assembly and the lower cloth assembly each include a cloth rolling frame, a cloth rolling motor, a cloth rolling roller and a plurality of rollers. Both ends of the cloth winding roller are rotatably connected to the cloth winding frame, the output end of the cloth winding motor is connected to one end of the cloth winding roller, the roller is placed on the frame and rotatably connected to the bearing on the frame, the upper filter cloth and the lower filter cloth are respectively placed on the corresponding cloth winding rollers, the upper filter cloth and the lower filter cloth extend to the conveyor belt after bypassing each roller, and are pulled by the conveyor belt to run in the moving direction of the conveyor belt.

6. The liquid material filter press device according to claim 2, characterized in that: The separation unit comprises a hopper and a scraper cutter. The feed inlet of the hopper is below the scraper cutter. The scraper cutters are respectively placed on the recovery paths of the upper filter cloth layer and the lower filter cloth layer.

7. A liquid material filter press device according to claim 5, characterized in that: The filter cloth cleaning unit comprises a washing group, a water control group and a vacuum water suction box through which the filter cloth passes in sequence, the washing group comprises a cleaning box, a lifting rod and a box cover, the box cover is slidably connected to the frame, the output end of the lifting rod is connected to the box cover, the cleaning box and the box cover are both provided with a brush roller rotatably connected thereto, the cleaning box and the box cover are provided with a third motor for driving the brush roller, the output end of the third motor is connected to one end of the brush roller through a transmission belt so as to drive the brush roller to rotate, The cleaning box is provided with box rollers at the ports for the upper filter cloth and the lower filter cloth to enter the box body. The cleaning box and the box cover are also provided with high-pressure pipes in a symmetrical relationship. A plurality of nozzles are provided on the high-pressure pipes. The high-pressure pipes are connected to a water source through a water pipe. A water outlet is provided on one side of the cleaning box, and the water outlet discharges waste water through a sewage pipe.

8. A liquid material filter press device according to claim 7, characterized in that: The water control group includes a water receiving box and a water control roller, the water control roller and the water receiving box are rotatably connected, the water control roller is close to the port of the cleaning box, and a drain outlet is opened at the bottom of the water receiving box, and the drain outlet discharges drain water through a drain pipe.

9. A liquid material filter press device according to claim 7, characterized in that: The frame is provided with two heavy rollers matched with corresponding filter cloth cleaning units, the two heavy rollers are used for rolling the upper filter cloth and the lower filter cloth respectively, and the heavy rollers are slidably connected with the frame.

10. A liquid material filter press device according to claim 9, characterized in that: The box cover is rotatably connected with an auxiliary roller, and the upper filter cloth and the lower filter cloth are connected with each roller after passing through the box roller via the auxiliary roller, and during this period, they pass through the heavy roller. When the lifting rod drives the box cover to rise and fall, the heavy roller will lift and fall with the upper filter cloth and the lower filter cloth.

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