MOFs multifunctional membrane casting waste liquid purification filtering equipment

Abstract

This invention discloses a MOFs multifunctional membrane casting waste liquid purification and filtration device, belonging to the field of water pollution treatment technology. The invention includes an outer casing and an inlet pipe installed on the upper part of the casing. A main flow channel is provided at the lower end of the inlet pipe, and a branch pipe is fixed at the lower end of the main flow channel. A partition plate is installed in the middle of the inner side of the branch pipe, dividing the interior of the branch pipe into two independent liquid flow channels. The main flow channel is interconnected with the two liquid flow channels inside the branch pipe through two guide pipes. Filter plates are installed at the openings at both ends of the branch pipe. This MOFs multifunctional membrane casting waste liquid purification and filtration device, through its dual-channel filtration structure, ensures that manual cleaning of the filter structure in one channel does not affect the filtration of casting waste liquid in the other channel. Simultaneously, pressure is used to squeeze out impurities stuck in the filter pores, reducing the difficulty of manual cleaning.

Description

Technical Field

[0001] This invention relates to the field of water pollution treatment technology, specifically to a casting waste liquid purification and filtration device for MOFs multifunctional membranes. Background Technology

[0002] MOFs (Metal-Organic Frameworks) multifunctional membranes refer to advanced separation and functional thin film materials that use metal-organic framework materials as core functional units and are formed by combining them with polymer substrates or forming continuous dense layers on porous carriers. During the processing of MOFs multifunctional membranes, a certain amount of casting waste liquid is generated. Direct discharge of casting waste liquid will pollute the surrounding water environment. In order to facilitate multi-stage purification and recycling of casting waste liquid, filtration equipment is usually used to filter out solid impurities mixed in the casting waste liquid.

[0003] For example, the Chinese patent with announcement number CN218608320U, patent name: a casting liquid filtration device, and announcement date: 2023-03-14, includes a barrel body, an inlet fixedly connected to the inside of the barrel body, an outlet fixedly connected to the inside of the barrel body, a primary filter screen fixedly connected to the inner wall of the barrel body, a motor fixedly connected to the outer wall of the barrel body, a rotating rod rotatably connected inside the barrel body, a first brush fixedly connected to the outer wall of the rotating rod, a cam fixedly connected to the outer wall of the rotating rod, and a side plate attached to the outer wall of the cam.

[0004] The existing technologies mentioned above also have the following technical problems: When filtering liquids, existing casting waste liquid filtration equipment filters impurities through internal filter components. However, when a lot of impurities are attached to the filter components, although the brush can clean the impurities attached to the surface, it cannot effectively push the impurities stuck in the filter holes outward. At the same time, when performing deep cleaning of the filter components, the entire equipment needs to stop working, which cannot guarantee continuous filtration operations, resulting in low work efficiency.

[0005] Therefore, we propose a MOFs multifunctional membrane casting waste liquid purification and filtration device to solve the problems mentioned above. Summary of the Invention

[0006] The purpose of this invention is to provide a MOFs multifunctional membrane casting waste liquid purification and filtration device to solve the problems mentioned in the background art. In the existing casting waste liquid filtration devices on the market, when filtering liquids, impurities are filtered out through internal filter components. However, when a large amount of impurities are attached to the filter components, although the brush can clean the impurities attached to the surface, it cannot effectively push the impurities stuck in the filter pores outward. At the same time, when performing deep cleaning of the filter components, the entire device needs to stop working, which cannot guarantee continuous filtration operation, thus leading to low work efficiency.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a MOFs multifunctional membrane casting waste liquid purification and filtration device, comprising an outer casing and an inlet pipe installed on the upper end of the outer casing. A main flow channel is provided at the lower end of the inlet pipe, and a branch pipe is fixed at the lower end of the main flow channel. A partition plate is installed in the middle of the inner side of the branch pipe, dividing the interior of the branch pipe into two independent liquid flow channels, left and right. The main flow channel is interconnected with the two liquid flow channels inside the branch pipe through two drainage pipes. Both ends of the branch pipe are equipped with drainage pipes. A first solenoid valve is installed on the filter plate and the diversion pipe. A movable plate is installed inside the partition plate, and a power component is installed at the bottom of the movable plate. Guide discs are installed at both ends of the movable plate, and the two guide discs are located in two liquid flow channels inside the diversion pipe. A sealing sleeve is fixed to the edge of the guide disc, and the sealing sleeve is connected to an inflation component. The inflation component is used to inflate the inside of the sealing sleeve so that the sealing sleeve is in close contact with the inner wall of the diversion pipe to achieve sealing when the guide disc moves. A maintenance and cleaning port is installed on the side of the diversion pipe near the filter plate.

[0008] Preferably, the power component includes an adjusting gear frame fixed to the lower end of the moving plate, and a half gear is meshed on the inner side of the adjusting gear frame. The half gear is fixed on the output shaft of the servo motor, and the moving plate can slide inside the partition plate.

[0009] By adopting the above technical solution, the servo motor can be turned on to make the half gear rotate synchronously. The rotation of the half gear can drive the moving plate to move back and forth under the action of the adjusting gear frame.

[0010] Preferably, the sealing sleeve and the guide plate are fixedly connected, the interior of the sealing sleeve is hollow, and a pressure reducing port is installed between the guide plate and the partition plate, and a second solenoid valve is installed on the pressure reducing port.

[0011] By adopting the above technical solution, when the sealing sleeve is filled with air and fits against the inner wall of the diverter, the guide plate can move normally after it moves by utilizing the opened pressure relief port.

[0012] Preferably, the inflation component includes an air supply hose for connecting the sealing sleeve and the air storage chamber, and a piston plate is installed inside the air storage chamber. The piston plate is fixed to the telescopic end of the cylinder, and a sealing ring is fixed to the edge of the piston plate.

[0013] By adopting the above technical solution, when the piston plate moves inside the gas storage chamber, the airflow inside the gas storage chamber can be squeezed into the interior of the sealing sleeve through the gas delivery hose.

[0014] Preferably, a power rod is installed in the middle of the side of the guide plate away from the partition plate, and the power rod is inserted into the middle rod of the cleaning component. The cleaning component is rotatably connected to the middle of the filter plate, and the snap-fit ​​block at the end of the power rod is inserted into the transmission groove inside the rod of the cleaning component.

[0015] By adopting the above technical solution, the power rod can move synchronously inside the cleaning component by moving the guide plate.

[0016] Preferably, the outer wall of the snap-fit ​​block at the end of the power rod and the inner wall of the transmission groove are in contact with each other, and the transmission groove is configured as a spiral structure, and the scraper on the cleaning component is in contact with the surface of the filter plate in the initial state.

[0017] By adopting the above technical solution, the movement of the locking block on the power rod in the spiral transmission groove enables the cleaning component to rotate on the filter plate, and the scraper on the cleaning component scrapes away the impurities attached to the filter plate.

[0018] Preferably, an assist rod is fixed to the edge of the guide plate facing the filter plate, and the assist rod is inserted into a sleeve fixed on the filter plate. The inside of the sleeve is connected to an impact member by a built-in spring, and a magnetic block is fixed to the end of the impact member and the assist rod that are close to each other.

[0019] By adopting the above technical solution, the built-in spring enables the striking component to reset and rebound after moving inside the sleeve post.

[0020] Preferably, the end of the striking element away from the magnetic block is in contact with the filter plate, and the striking element forms an elastic telescopic structure through a built-in spring and a connecting post.

[0021] By adopting the above technical solution, the filter plate can be struck by the movement of the striking component, thereby reducing the adhesion of impurities on the filter plate.

[0022] Preferably, the magnetic properties of the magnetic block at the end of the striking element and the magnetic block at the end of the assist rod are opposite, and the magnetic blocks at the ends of the striking element and the assist rod are located on the same straight line.

[0023] By adopting the above technical solution, when the assist rod moves, the magnetic attraction between the two magnetic blocks can be used to move the striking part on the sleeve post.

[0024] Compared with the prior art, the beneficial effects of the present invention are: the MOFs multifunctional membrane casting waste liquid purification and filtration equipment, by setting a dual-channel filtration structure, will not affect the filtration of casting waste liquid in the other channel when the filtration structure in one channel is manually cleaned. At the same time, the pressure can be used to squeeze out the impurities stuck in the filter pores, reducing the difficulty of manual cleaning.

[0025] 1. The two diversion pipes on both sides of the main channel correspond to the two filter channels inside the diversion pipe. When the filter plate inside one of the filter channels is blocked, the flow path of the casting waste liquid can be switched and changed so that the casting waste liquid can enter the other filter channel for filtration. This allows the machine to work continuously without interruption while not affecting manual cleaning of the filter plate.

[0026] 2. The movement of the guide plate enables the power rod to move synchronously inside the cleaning component. Through the cooperation of the locking block and the transmission groove, the cleaning component can rotate on the filter plate. The rotation of the cleaning component can clean the impurities attached to the filter plate. At the same time, after the sealing sleeve is filled with air, it can fit with the inner wall of the diversion pipe to form a seal. When the guide plate moves, it can squeeze the impurities stuck in the holes inside the filter plate outward under pressure, reducing the difficulty of manual cleaning.

[0027] 3. By moving the assist rod closer to and further away from the striking part on the sleeve column, the striking part can reciprocate under the magnetic force of the magnetic block. The reciprocating movement of the striking part can strike the filter plate. The vibration generated by striking the filter plate can reduce the adhesion of impurities on the filter plate, making it easier for the cleaning part to scrape off the impurities. The filtered casting waste liquid flows to the next-level pipeline system for deep purification treatment, thereby realizing multi-stage purification of casting waste liquid. Attached Figure Description

[0028] Figure 1 This is a frontal perspective view of the present invention;

[0029] Figure 2 This is a schematic diagram of the front cross-sectional structure of the present invention;

[0030] Figure 3 This is a schematic diagram of the main channel and shunt tube structure of the present invention;

[0031] Figure 4 This is a schematic diagram of the adjusting gear frame and half gear structure of the present invention;

[0032] Figure 5 This is a schematic diagram of the partition plate and movable plate structure of the present invention;

[0033] Figure 6 This is a schematic diagram of the sealing sleeve and gas delivery hose of the present invention;

[0034] Figure 7 This is a schematic diagram of the cleaning component and transmission groove structure of the present invention;

[0035] Figure 8 This is a schematic diagram of the striking component and magnetic block structure of the present invention;

[0036] Figure 9 For the present invention Figure 8 Enlarged structural diagram at point A in the middle.

[0037] In the diagram: 1. Outer casing; 2. Inlet pipe; 3. Main flow channel; 4. Diverter pipe; 5. Partition plate; 6. Drain pipe; 7. First solenoid valve; 8. Filter plate; 9. Moving plate; 10. Adjusting gear frame; 11. Half gear; 12. Servo motor; 13. Guide plate; 14. Sealing sleeve; 15. Gas delivery hose; 16. Gas storage chamber; 17. Piston plate; 18. Cylinder; 19. Pressure reducing port; 20. Second solenoid valve; 21. Power rod; 22. Cleaning component; 23. Snap-fit ​​block; 24. Transmission groove; 25. Assist rod; 26. Sleeve post; 27. Impact component; 28. Built-in spring; 29. ​​Magnetic block; 30. Inspection and cleaning port. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Example 1: Please refer to Figures 1-9Existing casting waste liquid filtration equipment filters impurities through internal filter components. However, when a large amount of impurities adhere to the filter components, although the brushes can clean the surface impurities, they cannot effectively push out the impurities stuck in the filter pores. Furthermore, manual deep cleaning of the filter components requires the entire equipment to stop operating, making continuous filtration impossible and resulting in low efficiency. To solve this technical problem, this embodiment discloses the following technical content: a MOFs multifunctional membrane casting waste liquid purification and filtration equipment, including an outer casing 1 and an inlet pipe 2 installed on the upper end of the outer casing 1. The lower end of the inlet pipe 2 is provided with a main flow channel 3. A diversion pipe 4 is fixed at the lower end of the flow channel 3, and a partition plate 5 is installed in the middle of the inner side of the diversion pipe 4. The partition plate 5 divides the interior of the diversion pipe 4 into two independent liquid flow channels, left and right. The main flow channel 3 is connected to the two liquid flow channels inside the diversion pipe 4 through two guide pipes 6. Filter plates 8 are installed at the openings at both ends of the diversion pipe 4. A first solenoid valve 7 is installed on the guide pipe 6. A movable plate 9 is installed inside the partition plate 5, and a power component is installed at the bottom of the movable plate 9. Guide plates 13 are installed at both ends of the movable plate 9, and the two guide plates 13 are located in the two liquid flow channels inside the diversion pipe 4. Sealing sleeves 14 are fixed to the edges of the guide plates 13. The sleeve 14 is connected to the inflation component, which inflates the inside of the sealing sleeve 14 to make it fit against the inner wall of the diverter pipe 4, thus achieving a seal when the guide plate 13 moves. The power component includes an adjusting gear 10 fixed to the lower end of the moving plate 9, and a half gear 11 is meshed on the inner side of the adjusting gear 10. The half gear 11 is fixed on the output shaft of the servo motor 12. The moving plate 9 can slide inside the partition plate 5. The sealing sleeve 14 and the guide plate 13 are fixedly connected, and the inside of the sealing sleeve 14 is set as a hollow structure. A pressure reducing port 19 is installed between the guide plate 13 and the partition plate 5. A second solenoid valve 20 is installed on the pressure reducing port 19. The inflation component includes components for connecting the sealing sleeve 14. The gas storage chamber 16 has a gas supply hose 15, and a piston plate 17 is installed inside the gas storage chamber 16. The piston plate 17 is fixed on the telescopic end of the cylinder 18, and a sealing ring is fixed on the edge of the piston plate 17. A power rod 21 is installed in the middle of the side of the guide plate 13 away from the partition plate 5, and the power rod 21 is inserted into the middle rod of the cleaning component 22. The cleaning component 22 is rotatably connected to the middle of the filter plate 8, and the snap-fit ​​block 23 at the end of the power rod 21 is inserted into the transmission groove 24 inside the rod of the cleaning component 22. The outer wall of the snap-fit ​​block 23 at the end of the power rod 21 and the inner wall of the transmission groove 24 are in contact with each other, and the transmission groove 24 is set as a spiral structure. The scraper on the cleaning component 22 is in contact with the surface of the filter plate 8 in the initial state.

[0040] When it is necessary to filter the casting waste liquid, close the first solenoid valve 7 on the drainage pipe 6 on one side of the main channel 3, open the first solenoid valve 7 on the drainage pipe 6 on the other side of the main channel 3, and then inject the casting waste liquid into the main channel 3 through the inlet pipe 2. The casting waste liquid can then enter the cavity connected to the branch pipe 4 through the drainage pipe 6. As the casting waste liquid flows, after passing through the filter plate 8, the impurities in the casting waste liquid can be intercepted by the filter plate 8. After filtration and impurity removal, the casting waste liquid flows outward. When the filter plate 8 at one end of the branch pipe 4 needs to be cleaned manually, simply open the first solenoid valve 7 on the unused drainage pipe 6 on the other side of the main channel 3 and close the first solenoid valve 7 on the used drainage pipe 6 on the side of the main channel 3. This will change the flow direction of the casting waste liquid, allowing it to clean the filter plate 8 on one side normally, thereby ensuring continuous filtration and avoiding the need for shutdown.

[0041] To simplify the manual cleaning of filter plate 8 and extend its service life, an additional cleaning structure was added, the details of which are as follows:

[0042] When the servo motor 12 is turned on, the half gear 11 rotates. The rotation of the half gear 11 causes the meshing adjusting gear 10 to move the moving plate 9 back and forth. The cylinder 18 on the diversion pipe 4, which is in the direction of the filter plate 8 to be cleaned, is then turned on. The cylinder 18 causes the piston plate 17 to move inside the air storage chamber 16. The piston plate 17 then forces the airflow inside the air storage chamber 16 through the air delivery hose 15 into the sealing sleeve 14 on the guide plate 13 in the diversion pipe 4, where there is no casting waste liquid flow. At this time, the sealing sleeve 14 expands after being inflated and adheres to the inner wall of the diversion pipe 4. The sealing sleeve 14 on the guide plate 13 in the casting waste liquid flow chamber on the other side of the diversion pipe 4 is not inflated. The air is sealed so that it does not adhere to the diversion pipe 4. When the moving plate 9 moves back and forth, it can simultaneously drive the guide plates 13 on both sides to move synchronously. First, after the guide plates 13 move, the power rod 21 can move on the rod in the middle of the cleaning component 22. After the power rod 21 moves, the locking block 23 can move inside the spiral transmission groove 24 on the cleaning component 22. After the locking block 23 moves, the cleaning component 22 will rotate. The rotation of the cleaning component 22 can scrape the impurities attached to the surface of the filter plate 8, avoiding the filter plate 8 from becoming clogged in a short time due to the lack of a cleaning component when filtering casting waste liquid, resulting in low filtration efficiency. The impurities after cleaning may remain in the pipe or cavity. As the casting waste liquid continues to be filtered, excessive accumulation of impurities that have detached from the filter plate 8 eventually clogs it, rendering it ineffective. At this point, the first solenoid valve 7 on the unused drain pipe 6 on the other side of the main flow channel 3 is opened, while the first solenoid valve 7 on the used drain pipe 6 on the side of the main flow channel 3 is closed. This changes the flow direction of the casting waste liquid, allowing filtration through the other filter channel. Since the clogged filter channel is now sealed, the impurities accumulated near the filter plate 8 can be swept out and removed through the maintenance and cleaning port 30 installed on the drain pipe 6, achieving final treatment of the cleaned impurities. This cycle can be repeated to ensure continuous operation. During the filtration process, since the sealing sleeve 14 on one side of the guide plate 13 is already in contact with the inner wall of the diversion pipe 4, when the guide plate 13 moves closer to the filter plate 8, it can also squeeze out the impurities stuck in the holes of the filter plate 8 under pressure, which makes it easier for subsequent staff to clean the filter plate 8 more quickly and reduces the difficulty of cleaning the filter plate 8 manually. However, when the diversion pipe 4 is in working condition, the sealing sleeve 14 on the circumference of the guide plate 13 in the cavity is not in contact with the diversion pipe 4. Therefore, the guide plate 13 will not be in a sealed state when it moves, which will affect the normal filtration of casting waste liquid. The filtered casting waste liquid flows to the next level pipeline system for deep purification treatment, thereby realizing multi-stage purification of casting waste liquid.

[0043] To ensure that the guide plate 13 and sealing sleeve 14 have sufficient back-flushing pressure to remove impurities from the filter holes of the filter plate 8 when they move, since the flange at the port of the drain pipe 6 is installed with the flange of the external pipe, it is only necessary to close the valve on the connecting pipe to ensure the closure of the downstream of the filter plate 8. During cleaning, this creates a closed cavity in the filter channel to be cleaned, thus providing sufficient back-flushing pressure when the guide plate 13 and sealing sleeve 14 move toward the filter plate 8 to squeeze out the particulate impurities stuck in the filter holes of the filter plate 8.

[0044] Since the adjusting gear 10 drives the moving plate 9 to move back and forth, in order to reduce the possibility of the squeezed-out impurities being re-inhaled into the holes inside the filter plate 8, when the moving plate 9 drives the guide plate 13 to move away from the filter plate 8 to reset, the piston plate 17 is pulled back by the cylinder 18, so that the airflow inside the sealing sleeve 14 flows back into the air storage chamber 16, thereby releasing the seal with the diverter pipe 4. When the guide plate 13 resets and moves without being sealed, the possibility of impurities being re-inhaled into the holes can be greatly reduced.

[0045] Example 2: The technical content disclosed in this example is a further improvement based on Example 1 described above. The following technical content is disclosed in this example: Figure 6 and Figure 8 As shown, an assist rod 25 is fixed to the edge of the guide plate 13 facing the filter plate 8, and the assist rod 25 is inserted into the sleeve post 26 fixed on the filter plate 8. The inside of the sleeve post 26 is connected to the striking member 27 through the built-in spring 28. The striking member 27 and the assist rod 25 are both fixed with a magnetic block 29 at their respective ends. The end of the striking member 27 away from the magnetic block 29 is in contact with the filter plate 8. The striking member 27 forms an elastic telescopic structure through the built-in spring 28 and the sleeve post 26. The magnetic properties of the magnetic block 29 at the end of the striking member 27 are opposite to those of the magnetic block 29 at the end of the assist rod 25, and the magnetic blocks 29 at the ends of the striking member 27 and the assist rod 25 are located on the same straight line.

[0046] When the guide plate 13 moves toward the filter plate 8, the movement of the guide plate 13 can drive the assist rod 25 to move synchronously. After the assist rod 25 moves inside the sleeve post 26, the magnetic block 29 at the end of the assist rod 25 and the magnetic block 29 at the end of the striking member 27 can approach each other. At this time, the two magnetic blocks 29 generate magnetic attraction between each other, causing the striking member 27 to move away from the filter plate 8. When the guide plate 13 is reset, the movement of the guide plate 13 can drive the assist rod 25 to reset synchronously. At this time, the magnetic blocks 29 at the end of the assist rod 25 and the magnetic blocks 29 at the end of the striking member 27 move away from each other. The striking member 27 resets and rebounds under the action of the built-in spring 28. Through the reciprocating movement of the striking member 27, it can impact the filter plate 8. The vibration generated by the impact on the filter plate 8 can reduce the adhesion of impurities on the filter plate 8, making it easier for the rotating cleaning member 22 to better scrape off the impurities attached to the filter plate 8.

[0047] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0048] Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. A MOFs multifunctional membrane casting waste liquid purification and filtration device, comprising an outer casing (1) and an inlet pipe (2) installed on the upper end of the outer casing (1), wherein the lower end of the inlet pipe (2) is provided with a main flow channel (3), characterized in that: A diversion pipe (4) is fixed at the lower end of the main channel (3), and a partition plate (5) is installed in the middle of the inner side of the diversion pipe (4). The partition plate (5) divides the interior of the diversion pipe (4) into two independent liquid flow channels, and the main channel (3) is connected to the two liquid flow channels inside the diversion pipe (4) through two drainage pipes (6). Filter plates (8) are installed at the openings at both ends of the diversion pipe (4), and a first solenoid valve (7) is installed on the drainage pipe (6). A movable plate (9) is installed inside the partition plate (5), and a moving plate (9) is installed at the bottom of the movable plate (9). The moving plate (9) is equipped with guide plates (13) at both ends, and the two guide plates (13) are located in two liquid flow channels inside the diversion pipe (4). The edge of the guide plate (13) is fixed with a sealing sleeve (14), and the sealing sleeve (14) is connected to the inflation component. The inflation component is used to inflate the sealing sleeve (14) so ​​that the sealing sleeve (14) is in contact with the inner wall of the diversion pipe (4) to achieve sealing when the guide plate (13) moves. The drainage pipe (6) is equipped with a maintenance and cleaning port (30) on one side near the filter plate (8). The power component includes an adjusting gear (10) fixed to the lower end of the moving plate (9), and a half gear (11) is meshed on the inner side of the adjusting gear (10). The half gear (11) is fixed on the output shaft of the servo motor (12), and the moving plate (9) can slide inside the partition plate (5). The sealing sleeve (14) and the guide plate (13) are fixedly connected, and the interior of the sealing sleeve (14) is set as a hollow structure. A pressure reducing port (19) is installed between the guide plate (13) and the partition plate (5), and a second solenoid valve (20) is installed on the pressure reducing port (19). The inflation component includes an air supply hose (15) for connecting the sealing sleeve (14) and the air storage chamber (16), and a piston plate (17) is installed inside the air storage chamber (16). The piston plate (17) is fixed on the telescopic end of the cylinder (18), and a sealing ring is fixed on the edge of the piston plate (17). The guide plate (13) is mounted with a power rod (21) on the middle part of the side away from the partition plate (5), and the power rod (21) is inserted into the middle rod of the cleaning component (22). The cleaning component (22) is rotatably connected to the middle part of the filter plate (8), and the snap block (23) at the end of the power rod (21) is inserted into the transmission groove (24) inside the rod of the cleaning component (22). The outer wall of the snap block (23) at the end of the power rod (21) and the inner wall of the transmission groove (24) are in contact with each other, and the transmission groove (24) is set as a spiral structure, and the scraper on the cleaning part (22) is in contact with the surface of the filter plate (8) in the initial state.

2. The MOFs multifunctional membrane casting waste liquid purification and filtration equipment according to claim 1, characterized in that: The guide plate (13) has an assist rod (25) fixed on the edge facing the filter plate (8), and the assist rod (25) is inserted into the sleeve post (26) fixed on the filter plate (8). The inside of the sleeve post (26) is connected to the striking element (27) by a built-in spring (28), and the striking element (27) and the assist rod (25) are both fixed with a magnetic block (29) at their respective ends.

3. The MOFs multifunctional membrane casting waste liquid purification and filtration equipment according to claim 2, characterized in that: The end of the striking element (27) away from the magnetic block (29) is in contact with the filter plate (8), and the striking element (27) forms an elastic telescopic structure through the built-in spring (28) and the sleeve post (26).

4. The MOFs multifunctional membrane casting waste liquid purification and filtration equipment according to claim 3, characterized in that: The magnetic block (29) at the end of the striking element (27) has opposite magnetism to the magnetic block (29) at the end of the assist rod (25), and the magnetic blocks (29) at the ends of both the striking element (27) and the assist rod (25) are located on the same straight line.

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