Filter pressing cloth cleaning device

Abstract

The invention relates to the technical field of sludge treatment, in particular to a filter press cloth cleaning device which comprises a rack, a transmission roller set and a cloth rolling machine, the transmission roller set and the cloth rolling machine are arranged on the rack, the cloth rolling machine is used for unwinding and recycling filter cloth, and a cleaning unit is arranged on the rack and arranged on a filter cloth recycling path. The cleaning unit comprises a washing set, a water control set and a vacuum water suction box which are sequentially arranged in the filter cloth recycling direction, and the filter cloth sequentially passes through the washing set, the water control set and the vacuum water suction box when being recycled by the cloth rolling machine so as to be subjected to washing, water control and suction drying operation. During the period, through multiple combinations of high-pressure water spray washing, brush roll brushing, water squeezing of a water control roll and negative-pressure water suction of a vacuum water suction box, the filter cloth can quickly recover a clean and dry state after a filtering task is completed, the cleaning period is remarkably shortened, and continuous production and improvement of production efficiency are facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of sludge treatment, and more particularly to a filter press cloth cleaning device. Background Art

[0002] The filter cloth is an important part of the filter press, and its cleanliness directly affects the filtration effect and production efficiency. As the filtration process proceeds, solid materials, grease and other adhesive impurities will gradually accumulate on the surface of the filter cloth, resulting in clogging of the filter holes, decreased filtration efficiency and shortened filtration cycle. Traditional solutions are mostly manual shutdowns to clean the filter cloth, which not only consumes manpower and time, but also reduces the continuity and output of the production line. At the same time, manual cleaning is difficult to ensure thoroughness, resulting in a shortened service life of the filter cloth. In view of this, there is an urgent need for a device that can automatically and efficiently clean the filter cloth during equipment operation, thereby improving the degree of automation in production, shortening cleaning time and reducing maintenance costs. Summary of the invention

[0003] To this end, an object of the present invention is to provide a filter press cloth cleaning device, which provides a cleaning unit on the filter cloth recovery path so that the filter cloth can be automatically cleaned without manual disassembly, thereby improving production efficiency and filter cloth utilization.

[0004] To achieve the above object, the present invention provides the following technical solutions: A filter press cloth cleaning device comprises a frame, a driving roller group and a cloth winder placed on the frame, the cloth winder is used to unwind and recycle the filter cloth, a cleaning unit is provided on the frame, the cleaning unit is arranged on the filter cloth recovery path, and the cleaning unit comprises a washing group, a water control group and a vacuum water suction box which are sequentially arranged along the filter cloth recovery direction; When the filter cloth is recovered by the cloth winding machine, it passes through the washing group, the water control group and the vacuum water suction box in sequence to perform washing, water control and drying operations on the filter cloth.

[0005] The present invention is further configured as follows: the scrubbing group comprises a cleaning box fixedly mounted on a frame and a box cover sliding up and down relative to the frame, and the frame is provided with an electric lifting rod for driving the box cover to move up and down; The cleaning box and the box cover are both rotatably connected with brush rollers, and each brush roller is driven to rotate by an independent motor; The cleaning box and the box cover are symmetrically provided with high-pressure pipes, a plurality of nozzles are arranged on the high-pressure pipes, and the high-pressure pipes are connected to the water source through water pipes. The side wall of the cleaning box is provided with a water outlet, and the water outlet discharges waste water through a sewage pipe.

[0006] The present invention is further configured as follows: the water control group includes a water receiving box and a water control roller rotatably connected to the water receiving box, the water control roller is arranged at a lower position where the filter cloth passes through the output end of the cleaning box, so as to contact the surface of the filter cloth to squeeze out the residual moisture in the filter cloth, 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.

[0007] The present invention is further configured as follows: a heavy roller in contact with the filter cloth is arranged on the frame, and the heavy roller is movably connected to the frame for tensioning and guiding the filter cloth.

[0008] The present invention is further configured as follows: an auxiliary roller is rotatably connected to the box cover to assist in cleaning the filter cloth.

[0009] The present invention is further configured as follows: the electric lifting rod has two, the bottom of the electric lifting rod is connected to the frame, the two electric lifting rods are respectively placed on both sides of the box cover, and a bearing seat for cooperating with the upper end of the electric lifting rod is fixedly connected to the upper end surface of the box cover. A guide rail is arranged on the frame, and a sliding block which is slidably connected with the guide rail is arranged on the bearing seat.

[0010] The present invention is further configured as follows: a feed roller is provided on the input end of the cleaning box through which the filter cloth passes, the feed roller is placed below the filter cloth passes, and the feed roller and the water control roller are arranged at the same horizontal position.

[0011] The present invention is further configured as follows: the brush roller comprises a central shaft and bristles arranged around the outer surface of the central shaft, the bristles are densely arranged in a ring shape, and the box cover and the cleaning box are both provided with a bearing member for the central shaft to be connected after extending out of the body. A driving pulley is arranged on the power shaft of the motor, a belt is sleeved on the driving pulley, and the belt is transmission-connected with a driven pulley arranged on one end of the central shaft.

[0012] The present invention is further configured as follows: a plurality of holes are opened on the upper end surface of the vacuum water suction box, and the vacuum water suction box is connected to a vacuum pump, so that when the filter cloth passes over the holes, the negative pressure generated in the vacuum water suction box absorbs water from the surface of the filter cloth, and a water outlet is provided at the bottom of the vacuum water suction box, and the water is discharged through a drain pipe.

[0013] Compared with the shortcomings of the prior art, the beneficial effects of the present invention are: By arranging a washing group, a water control group and a vacuum water suction box on the filter cloth recovery path, the filter cloth can be cleaned online without disassembling it. During the process, a multiple combination of high-pressure water spraying, brush roller brushing, water control roller squeezing, and vacuum water suction box negative pressure water absorption is used. The filter cloth can quickly return to a clean and dry state after completing the filtration task, which significantly shortens the cleaning cycle and is conducive to continuous production and improved production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall main structure of the present invention; Figure 2 It is a partial three-dimensional structural schematic diagram of the present invention.

[0015] Frame 1, cloth winding machine 2, washing group 3, water control group 4, vacuum water suction box 5, cleaning box 31, box cover 32, brush roller 33, electric lifting rod 6, bearing seat 61, high-pressure pipe 7, nozzle 71, heavy roller 8, auxiliary roller 9, water receiving box 41, water control roller 42. DETAILED DESCRIPTION

[0016] Reference Figure 1-Figure 2 The embodiment of a filter press cloth cleaning device of the present invention is specifically described as follows: The invention comprises a frame 1, a transmission roller group placed on the frame 1, a cloth winding machine 2 and a cleaning unit.

[0017] Among them, the transmission roller group and the cloth winder 2 are used to achieve stable transportation and recycling of the filter cloth.

[0018] The transmission roller group consists of several mutually coordinated guide rollers, tension rollers and drive rollers. The guide rollers are used to ensure the stability of the filter cloth's travel direction during the transmission process to prevent the filter cloth from deflecting; the tension rollers are used to keep the filter cloth with appropriate tension during the working process to prevent the filter cloth from loosening and affecting the filtering and cleaning effects; the drive rollers are connected to the power source through a motor, sprocket or belt transmission mechanism to provide power for the filter cloth transmission.

[0019] The cloth winder 2 includes unwinding and rewinding. The unwinding is used to unwind the unused or cleaned filter cloth from the reel, and the rewinding side is used to rewind and store the filter cloth after the sludge dehydration and cleaning are completed for reuse. The cloth winder 2 is provided with an automatic tension control device and a speed control system to ensure the stability and efficiency of the filter cloth conveying and recycling process. The crimping machine is constructed of a motor and a reel, and the forward and reverse drive of the motor realizes unwinding and rewinding.

[0020] The cleaning unit is arranged on the filter cloth recovery path, that is, the filter cloth will pass through the cleaning unit to achieve online cleaning during the process of being recovered by the cloth winding machine 2. The cleaning unit includes a washing and brushing group 3, a water control group 4 and a vacuum water suction box 5 arranged in sequence along the filter cloth recovery direction. When the filter cloth passes through, it is first subjected to high-pressure water flow and brushing action by the washing and brushing group 3, then squeezed and drained by the water control group 4, and finally subjected to negative pressure water absorption and drying by the vacuum water suction box 5, thereby efficiently restoring the clean state of the filter cloth.

[0021] The scrubbing group 3 includes a cleaning box 31 fixedly mounted on the frame 1 and a box cover 32 that slides up and down relative to the frame 1. The frame 1 is provided with an electric lifting rod 6 for driving the box cover 32 to move up and down. There are two dynamic lifting rods, which are respectively placed on both sides of the box cover 32 to ensure that the box cover 32 is symmetrically supported during the lifting process, effectively avoiding the box cover 32 from tilting and getting stuck. The bottoms of the two electric lifting rods 6 are fixed to the frame 1, and the two are symmetrically distributed. The tops are connected to the bearing seat 61 on the box cover 32. The bearing seat 61 can adopt a rigid structure, which is a frame, and is fixed to the box cover 32 by bolts, welding or flange connection. The bearing seat 61 is provided with a slider that cooperates with the guide rail on the frame 1 to ensure that the box cover 32 maintains a precise vertical motion trajectory during the lifting process. This design reduces the risk of the box cover 32 swinging left and right and tilting, and ensures the stability and reliability of the cleaning operation.

[0022] The cleaning box 31 and the box cover 32 are both rotatably connected with a brush roller 33, which is installed on the cleaning box 31 and the box cover 32 through a bearing member and driven by an independent motor. The brush roller 33 includes a central shaft and bristles arranged around the outer surface of the central shaft. The bristles are densely arranged in a ring shape. The bristles can be made of wear-resistant and elastic synthetic fibers such as nylon. The length and density of the bristles can be optimized according to the type of filter cloth and the degree of pollution. The box cover 32 and the cleaning box 31 are both provided with a bearing member for the central shaft to be connected after extending out of the body.

[0023] The motor is connected to the driven pulley on one end of the central shaft through the driving pulley on the power shaft and the sleeved belt. When the motor is running, the belt drive drives the brush roller 33 to rotate, thereby realizing the continuous brushing of the filter cloth.

[0024] During operation, the box cover 32 descends, allowing the upper and lower brush rollers 33 to work together to clamp the filter cloth between the two and brush it with the assistance of high-pressure water flow. To adapt to different filter cloth thicknesses and hardnesses, the descending stroke of the box cover 32 or the speed of the brush roller 33 can be adjusted as needed.

[0025] A high-pressure pipe 7 is symmetrically arranged on the cleaning box 31 and the box cover 32. A plurality of nozzles 71 are installed on the high-pressure pipe 7. The high-pressure pipe 7 is connected to a clean water source through a water pipe. The nozzles 71 can select fan-shaped, columnar or adjustable-angle nozzle types to obtain better cleaning coverage and impact force. The high-pressure water jet can be carried out simultaneously with the brushing action, thereby quickly washing away the dirt and particles on the surface of the filter cloth.

[0026] The side wall of the cleaning box 31 is provided with a water outlet for timely discharging the waste water containing dirt generated during the cleaning process. The water outlet is connected to a sewage pipe to guide the waste water into a drainage system or a wastewater treatment device to keep the cleaning area clean and the working environment hygienic.

[0027] After the filter cloth is cleaned by the washing group 3, a certain amount of water still remains on the surface. The water control group 4 includes a water receiving box 41 and a water control roller 42 rotatably connected to the water receiving box 41. The water control roller 42 is arranged below the filter cloth passing through the output end of the washing box 31 to contact with the filter cloth surface to squeeze the remaining water in the filter cloth. The water receiving box 41 is used to collect the excess water squeezed out by the water control roller 42. A drainage port is provided at the bottom. The drainage port quickly discharges the dripping or squeezed water through the drainage pipe to prevent the water from falling back to the filter cloth surface or accumulating inside the equipment. Through the water control treatment at this stage, the water on the filter cloth surface can be greatly reduced, creating conditions for the subsequent vacuum water absorption step.

[0028] A heavy roller 8 in contact with the filter cloth can be provided on the frame 1, and provides appropriate tension and guidance for the filter cloth by being movably connected with the frame 1. When the filter cloth is slightly offset or loosened during the transmission, cleaning and squeezing process, the heavy roller 8 applies a certain tension to it to ensure that the filter cloth maintains the correct position and stable operation in each processing link.

[0029] An auxiliary roller 9 is also rotatably connected to the box cover 32. The auxiliary roller 9 can be used to provide auxiliary support and guidance for the filter cloth during the washing process to ensure that the filter cloth is not wrinkled, offset or damaged under the action of high-pressure water spraying and brushing, thereby improving the cleaning quality and overall operating stability.

[0030] A feed roller is provided at the filter cloth input end of the cleaning box 31. The feed roller is located below the filter cloth passage and is approximately at the same level as the water control roller 42. The feed roller can help the filter cloth to smoothly enter the cleaning area, so that the filter cloth is in a stable and tensioned state before the cleaning begins. At the same time, the relative fixation of the feed roller and the water control roller 42 can make the filter cloth have a smooth path and a stable posture when passing through the washing and water control links.

[0031] The vacuum water suction box 5 is arranged downstream of the water control group 4, that is, the filter cloth has basically reduced a lot of moisture after the water control treatment, but still has a certain humidity. At this time, the filter cloth passes over the vacuum water suction box 5. The upper end surface of the vacuum water suction box 5 is provided with a plurality of holes, which are directly facing the bottom surface of the filter cloth. When the vacuum pump is started, a negative pressure environment is formed inside the vacuum water suction box 5. When the filter cloth passes through the hole area, the residual moisture on the surface of the filter cloth is quickly sucked into the box under the action of the pressure difference.

[0032] The vacuum suction box 5 is connected to the vacuum pump through a vacuum pipeline, and continuously draws air to form a negative pressure. The sucked water and the fine particles that may be entrained are collected inside the box, and are promptly discharged through the water outlet provided at the bottom of the box and the connected drain pipe. In order to protect the vacuum pump and pipeline, a filter screen or support grid can be added to the vacuum suction box 5 to prevent particles or fibers from entering the vacuum system. This link ensures that the filter cloth has basically reached a dry state before leaving the cleaning unit, which is convenient for subsequent storage or re-filtration.

[0033] 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 filter press cloth cleaning device, comprising a frame (1), a drive roller group and a cloth winder (2) placed on the frame (1), wherein the cloth winder (2) is used to unwind and recycle the filter cloth, and is characterized in that: The frame (1) is provided with a cleaning unit, the cleaning unit being arranged on the filter cloth recovery path, the cleaning unit comprising a washing group (3), a water control group (4) and a vacuum water suction box (5) which are arranged in sequence along the filter cloth recovery direction; When the filter cloth is recovered by the cloth winding machine (2), it passes through the washing group (3), the water control group (4) and the vacuum water suction box (5) in sequence, so as to perform washing, water control and drying operations on the filter cloth.

2. A filter press cloth cleaning device according to claim 1, characterized in that: The scrubbing group (3) comprises a cleaning box (31) fixedly mounted on a frame (1) and a box cover (32) that slides up and down relative to the frame (1); the frame (1) is provided with an electric lifting rod (6) for driving the box cover (32) to move up and down; The cleaning box (31) and the box cover (32) are both rotatably connected with brush rollers (33), and each brush roller (33) is driven to rotate by an independent motor; A high-pressure pipe (7) is symmetrically arranged on the cleaning box (31) and the box cover (32). The high-pressure pipe (7) is provided with a plurality of nozzles (71) and is connected to a water source through a water pipe. A water outlet is arranged on the side wall of the cleaning box (31), and the water outlet discharges waste water through a sewage pipe.

3. A filter press cloth cleaning device according to claim 2, characterized in that: The water control group (4) comprises a water receiving box (41) and a water control roller (42) rotatably connected to the water receiving box (41); the water control roller (42) is arranged below the filter cloth passing through the output end of the cleaning box (31) so as to contact the surface of the filter cloth to squeeze out the residual water in the filter cloth; a drainage outlet is provided at the bottom of the water receiving box (41), and the drainage outlet discharges the drain water through a drainage pipe.

4. A filter press cloth cleaning device according to claim 1, characterized in that: The frame (1) is provided with a heavy roller (8) in contact with the filter cloth. The heavy roller (8) is movably connected to the frame (1) and is used to tension and guide the filter cloth.

5. A filter press cloth cleaning device according to claim 4, characterized in that: An auxiliary roller (9) is rotatably connected to the box cover (32) to assist in cleaning the filter cloth.

6. A filter press cloth cleaning device according to claim 3, characterized in that: The electric lifting rod (6) has two parts, the bottom of the electric lifting rod (6) is connected to the frame (1), the two electric lifting rods (6) are respectively placed on both sides of the box cover (32), and a bearing seat (61) for cooperating with the upper end of the electric lifting rod (6) is fixedly connected to the upper end surface of the box cover (32). A guide rail is provided on the frame (1), and a sliding block slidably connected to the guide rail is provided on the bearing seat (61).

7. A filter press cloth cleaning device according to claim 5, characterized in that: A feed roller is provided at the input end of the cleaning box (31) through which the filter cloth passes. The feed roller is placed below the filter cloth passing through, and the feed roller and the water control roller (42) are arranged at the same horizontal position.

8. The filter press cloth cleaning device according to claim 2, characterized in that: The brush roller (33) comprises a central axis and bristles arranged around the outer surface of the central axis, the bristles being densely arranged in a ring shape, and the box cover (32) and the cleaning box (31) are both provided with a bearing member for the central axis to be connected after extending out of the body. A driving pulley is arranged on the power shaft of the motor, a belt is sleeved on the driving pulley, and the belt is transmission-connected with a driven pulley arranged on one end of the central shaft.

9. A filter press cloth cleaning device according to claim 3, characterized in that: The upper end surface of the vacuum water suction box (5) is provided with a plurality of holes. The vacuum water suction box (5) is connected to a vacuum pump so that when the filter cloth passes over the holes, the negative pressure generated in the vacuum water suction box (5) absorbs water from the surface of the filter cloth. The bottom of the vacuum water suction box (5) is provided with a water outlet, and the water is discharged through a drain pipe.

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