Membrane treatment equipment based on wastewater treatment plants

Abstract

This utility model discloses a membrane treatment device based on a wastewater treatment plant, relating to the field of wastewater treatment technology. Addressing the problems of low membrane cleaning efficiency, high maintenance costs, low filtration efficiency, and poor adaptability in existing equipment, the following solution is proposed: A movable plate is included, with a collection trough placed on top of the movable plate. Support columns are welded and fixed to the four corners of the top of the movable plate, and support plates are welded and fixed to the top of each of the four support columns. A water tank is placed on top of the support plates, and a cover plate is inserted into the top of the water tank. This utility model provides highly efficient and thorough membrane cleaning with low maintenance costs. Through the design of a movable nozzle and rotating membrane assembly, it solves the problems of slow and incomplete cleaning in traditional equipment. A linear motor drives the nozzle of the cylindrical tube to move along a sliding rod, and a servo motor drives the rotating drum to rotate, achieving automated cleaning of multiple sets of filter membranes. Membrane flux recovery rate is greatly improved, and there is no need to disassemble the membrane assembly, reducing manual operation.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to membrane treatment equipment based on wastewater treatment plants. Background Technology

[0002] Membrane treatment equipment in wastewater treatment plants is a core filtration device in wastewater treatment systems. It primarily removes suspended solids, colloids, microorganisms, and some organic pollutants from wastewater through the retention of the filtration membrane, achieving deep purification and reuse of wastewater. This equipment is widely used in municipal wastewater treatment plants, industrial wastewater treatment plants, and other scenarios. It can adapt to the treatment needs of different water qualities and is a key piece of equipment for improving wastewater discharge standards and realizing water resource recycling. It complies with relevant standards such as GB18918-2002 "Discharge Standard of Pollutants for Urban Wastewater Treatment Plants".

[0003] However, the membrane treatment equipment in existing sewage treatment plants has significant shortcomings in actual use.

[0004] On the one hand, membrane cleaning is inefficient and has high maintenance costs. The filter membranes of traditional equipment are mostly fixed installation structures, which require stopping the machine to disassemble during cleaning. Moreover, manual rinsing is often used, which is not thorough, leading to increased membrane fouling and shortened service life. On the other hand, the nozzles of some automated cleaning equipment are in fixed positions, which cannot fully cover the membrane surface, resulting in cleaning blind spots and affecting the filtration effect.

[0005] On the other hand, the filtration efficiency is low and the adaptability is poor. Traditional equipment is mostly designed with a single membrane module, which has a limited processing capacity and cannot meet the large-scale needs of sewage treatment plants. Moreover, the installation and replacement of membrane modules rely on professional tools, which is cumbersome. When the sewage quality fluctuates, it is not possible to quickly replace the filter membrane with a suitable pore size, which can easily lead to membrane clogging. Frequent shutdowns for maintenance are required, resulting in poor equipment operation stability. Utility Model Content

[0006] In view of the shortcomings of the prior art, this utility model provides a membrane treatment equipment based on a sewage treatment plant, which overcomes the shortcomings of the prior art and effectively solves the problems of low membrane cleaning efficiency, high maintenance cost, low filtration efficiency and poor adaptability in the prior art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A membrane treatment device based on a wastewater treatment plant includes a movable plate. A collection trough is placed on top of the movable plate, and support columns are welded to the four corners of the top of the movable plate. Support plates are welded to the tops of the four support columns. A water tank is placed on top of the support plate, and a cover plate is inserted into the top of the water tank. A water outlet pipe is inserted into the top of the cover plate, and a connecting hose is inserted into the top of the water outlet pipe. A fixing pipe is inserted into one end of the connecting hose, and a cylindrical tube with nozzles evenly distributed at its bottom is inserted into the bottom end of the fixing pipe. A push rod motor is installed on one outer wall of the support plate, and a U-shaped block is installed on one end of the push rod motor. Both ends of the tube are welded and fixed with fixing plates, and both ends of the outer wall of the two fixing plates on the side away from each other are welded and fixed with fixing blocks. A sliding rod is welded and fixed between the two fixing blocks. The walls of the two sliding rods are slidably connected to a U-shaped frame that is inserted and fixed to the fixing tube. A rotating cylinder is rotatably connected between the two fixing plates, and U-shaped plates are welded and fixed at equal intervals on the annular outer wall of the rotating cylinder. Fixing frames with filter membranes installed and fixed on the inner walls of both sides of the U-shaped plates are inserted and fixed. A fastening assembly is connected between the fixing frame and the U-shaped plate. The fastening assembly includes a connecting plate, a plug rod welded and fixed to both ends of the bottom of the connecting plate, and a protruding rod inserted and movable to the bottom of one side of the plug rod wall.

[0009] Furthermore, casters are fixed to the four corners of the bottom of the movable plate, and anti-slip pads are glued between the top of the movable plate and the bottom of the collection trough.

[0010] The casters are heavy-duty polyurethane wheels with brakes, facilitating flexible movement of the equipment within the wastewater treatment plant. The anti-slip mats are made of rubber to prevent the collection tank from slipping during equipment operation or movement, ensuring stable wastewater collection.

[0011] Furthermore, the bottom of the collection tank is inclined, and a drain pipe with a control valve is inserted and fixed at one end of the collection tank.

[0012] The bottom of the collection tank is inclined at a 5° angle, which facilitates the flow of filtered sewage toward the drain pipe and avoids water accumulation. The drain pipe is made of PVC material and the control valve is a ball valve, which can accurately control the drainage rate and adapt to the flow requirements of subsequent sewage reuse or discharge pipelines.

[0013] Furthermore, a water pump is installed inside the water tank, and one end of the water pump's outlet is connected to the bottom end of the water outlet pipe.

[0014] The water pump is a stainless steel centrifugal pump, which is highly corrosion resistant and can deliver clean water or cleaning agents. The water pump and the outlet pipe are connected by a flange, which has good sealing performance and ensures that the cleaning fluid is stably delivered to the nozzle of the cylindrical cylinder.

[0015] Furthermore, guide rods are welded and fixed to both ends of one side of the outer wall of the U-shaped block, and slots that interlock with the guide rods are opened at both ends of one side of the outer wall of the support plate, so that the U-shaped block and the fixed frame interlock.

[0016] The guide rod ensures that the U-shaped block moves in a straight line under the drive of the push rod motor; the inner dimensions of the U-shaped block are adapted to the fixed frame, which can fix the position of the fixed frame and prevent the fixed frame from shaking during cleaning or filtration.

[0017] Furthermore, a servo motor is installed and fixed on one side of the outer wall of one of the fixed plates, and the output shaft of the servo motor is connected and fixed to one end of the rotating shaft of the drum through a coupling. A linear motor is embedded in one side of the outer wall of the other fixed plate, and the moving part of the linear motor is installed and fixed on one side of the inner wall of the U-shaped frame.

[0018] The servo motor adopts the ST-M model, which drives the rotating drum to rotate precisely through the coupling, realizing the switching of different U-shaped plates; the linear motor adopts a brushless linear motor, which drives the U-shaped frame to slide along the slide bar, driving the nozzle of the cylindrical tube to fully cover the surface of the filter membrane, with no blind spots for cleaning.

[0019] Furthermore, the outer walls on both sides of the U-shaped plate are provided with grooves that interlock with the fixed frame, and the top two sides of the U-shaped plate and the top two sides of the fixed frame are provided with through holes that interlock with the insert rod. A spring is provided at the connection between the tail end of the protruding rod and the insert rod.

[0020] The groove ensures that the fixing frame is secure after insertion; the through hole matches the insertion rod, and the protrusion pops out under the action of the spring, clamping the U-shaped plate and the fixing frame for quick fixation. When disassembling, simply press the protrusion to pull out the insertion rod, which facilitates the replacement of the filter membrane.

[0021] The beneficial effects of this utility model are as follows:

[0022] 1. Membrane cleaning is highly efficient and thorough, with low maintenance costs. The design of movable nozzles and rotating membrane components solves the problems of slow and incomplete cleaning in traditional equipment. A linear motor drives the nozzles of the cylindrical cylinder to move along the slide bar, and a servo motor drives the rotating cylinder to rotate, realizing automated cleaning of multiple filter membranes. The membrane flux recovery rate is greatly improved. There is no need to disassemble the membrane components, reducing manual operation, lowering maintenance costs, and extending the service life of the filter membrane.

[0023] 2. High filtration efficiency and strong adaptability: Relying on multiple membrane modules and a quick-assembly and disassembly structure, it improves the low efficiency and poor adaptability of traditional equipment. Multiple U-shaped plates on the rotating drum can install multiple filter membranes at the same time, increasing the processing capacity and meeting the needs of large-scale sewage treatment plants. The fastening components enable quick assembly and disassembly of the fixed frame, allowing for timely replacement of filter membranes with appropriate pore sizes according to fluctuations in sewage quality, avoiding membrane clogging, improving equipment operational stability, and reducing the number of downtime maintenance. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the membrane treatment equipment based on a wastewater treatment plant proposed in this utility model;

[0025] Figure 2 This is a schematic diagram of the connection structure on one side of the support plate of the membrane treatment equipment based on a sewage treatment plant proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of the cylindrical connection structure of the membrane treatment equipment based on a sewage treatment plant proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of the fastening component structure of the membrane treatment equipment based on a sewage treatment plant proposed in this utility model.

[0028] In the diagram: 1. Moving plate; 2. Collection trough; 3. Support column; 4. Support plate; 5. Water tank; 6. Cover plate; 7. Water outlet pipe; 8. Connecting hose; 9. Fixed pipe; 10. Cylindrical tube; 11. Push rod motor; 12. U-shaped block; 13. Guide rod; 14. Fixed plate; 15. Fixed block; 16. Sliding rod; 17. U-shaped frame; 18. Servo motor; 19. Rotary drum; 20. U-shaped plate; 21. Fixed frame; 22. Filter membrane; 23. Fastening assembly; 24. Connecting plate; 25. Insert rod; 26. Protruding rod. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] Example:

[0031] Reference Figure 1-4The membrane treatment equipment based on the sewage treatment plant includes a movable plate 1, a collection tank 2 placed on top of the movable plate 1, support columns 3 welded and fixed at the four corners of the top of the movable plate 1, support plates 4 welded and fixed at the top of the four support columns 3, a water tank 5 placed on top of the support plate 4, a cover plate 6 inserted into the top of the water tank 5, an outlet pipe 7 inserted and fixed into the top of the cover plate 6, a connecting hose 8 inserted into the top of the outlet pipe 7, a fixing pipe 9 inserted into one end of the connecting hose 8, and a cylindrical tube 10 with nozzles evenly distributed at the bottom inserted and fixed into the bottom of the fixing pipe 9. A push rod motor 11 is installed and fixed on one side of the outer wall of the support plate 4, a U-shaped block 12 is installed and fixed at one end of the push rod motor 11, and fixing plates are welded and fixed at both ends of one side of the outer wall of the support plate 4. 14. Fixing blocks 15 are welded and fixed to both ends of the outer wall of the two fixing plates 14 on the side away from each other. Sliding rods 16 are welded and fixed between the two fixing blocks 15. The rod walls of the two sliding rods 16 are slidably connected to U-shaped frames 17 that are inserted and fixed to the fixing tube 9. A rotating cylinder 19 is rotatably connected between the two fixing plates 14. U-shaped plates 20 are welded and fixed to the annular outer wall of the rotating cylinder 19 at equal intervals. Fixing frames 21 with filter membranes 22 installed and fixed on the inner walls of both sides of the U-shaped plates 20 are inserted. Fastening components 23 are connected between the fixing frames 21 and the U-shaped plates 20. Fastening components 23 include connecting plates 24, insert rods 25 welded and fixed to the bottom ends of the connecting plates 24, and protruding rods 26 inserted and movable to the bottom of one side of the rod wall of the insert rods 25.

[0032] All four corners of the bottom of the movable plate 1 are equipped with casters. Anti-slip pads are bonded between the top of the movable plate 1 and the bottom of the collection tank 2. The casters are heavy-duty polyurethane wheels with brakes, facilitating flexible movement of the equipment within the wastewater treatment plant. The anti-slip pads are made of rubber to prevent the collection tank 2 from slipping during operation or movement, ensuring stable wastewater collection. The bottom of the collection tank 2 is inclined, and a drain pipe with a control valve is inserted and fixed to one end of the collection tank 2. The bottom of the collection tank 2 is inclined at a 5° angle, facilitating the flow of filtered wastewater towards the drain pipe and preventing water accumulation. The drain pipe is made of PVC, and the control valve is a ball valve, allowing precise control of the drainage rate and adaptability for subsequent wastewater reuse. To meet the flow requirements of the discharge pipeline, a water pump is installed in the water tank 5. One end of the water pump's outlet is connected to the bottom end of the outlet pipe 7. The water pump is a stainless steel centrifugal pump with strong corrosion resistance and can transport clean water or cleaning agents. The water pump and the outlet pipe 7 are connected by a flange, ensuring good sealing performance and stable delivery of cleaning fluid to the nozzle of the cylindrical cylinder 10. Guide rods 13 are welded and fixed to both ends of one side of the outer wall of the U-shaped block 12. Slots that interlock with the guide rods 13 are opened at both ends of one side of the outer wall of the support plate 4. The U-shaped block 12 and the fixed frame 21 interlock. The guide rods 13 are made of 45# steel, with a gap of 0.1mm between them and the slots, ensuring that the U-shaped block 12 moves linearly under the drive of the push rod motor 11. The inner dimensions of the U-shaped block 12 are adapted to the fixed frame 21, which can fix the position of the fixed frame 21 and prevent the fixed frame 21 from shaking during cleaning or filtration. A servo motor 18 is installed and fixed on one side of the outer wall of one of the fixed plates 14. The output shaft of the servo motor 18 is connected and fixed to one end of the rotating shaft of the rotating drum 19 through a coupling. A linear motor is embedded on one side of the outer wall of the other fixed plate 14. The moving part of the linear motor is installed and fixed on one side of the inner wall of the U-shaped frame 17. The servo motor 18 is a 130ST-M10015 model, which drives the rotating drum 19 to rotate precisely through the coupling to realize the switching of different U-shaped plates 20. The linear motor is a brushless linear motor, which drives the U-shaped frame 17 to slide along the slide rod 16. The movement causes the nozzle of the cylindrical tube 10 to fully cover the surface of the filter membrane 22, eliminating any blind spots in cleaning. The outer walls of both sides of the U-shaped plate 20 have grooves that interlock with the fixing frame 21. The top sides of the U-shaped plate 20 and the top sides of the fixing frame 21 both have through holes that interlock with the insertion rod 25. A spring is installed at the connection between the tail end of the protruding rod 26 and the insertion rod 25. The groove depth is 10mm to ensure that the fixing frame 21 is secure after insertion. The through hole diameter is 12.1mm, matching the insertion rod 25. The protruding rod 26 pops out under the action of the spring, locking the U-shaped plate 20 and the fixing frame 21 for quick fixation. During disassembly, pressing the protruding rod 26 allows the insertion rod 25 to be pulled out, facilitating the replacement of the filter membrane 22.

[0033] For the movable plate and collection tank: Movable plate 1 is made of Q235 cold-rolled steel plate, with surface sandblasting and electrostatic powder coating to ensure long-term use in the humid environment of the sewage treatment plant. The four corners of the bottom of movable plate 1 are equipped with casters mounted on M16 bolts. The brake pedal is made of stainless steel, with a braking friction force ≥300N after pressing, ensuring no slippage during operation. An anti-slip pad is glued to the top of movable plate 1 and fixed with strong adhesive. The surface of the anti-slip pad has a diamond-shaped anti-slip pattern to prevent the collection tank 2 from slipping. The collection tank 2 is made of PP plastic, with a bottom inclined structure formed by molding, and an inclination angle error ≤0.5°. A PVC drain pipe is welded to one end of the collection tank 2, and the control valve is a stainless steel ball valve for easy connection to subsequent pipelines in the sewage treatment plant.

[0034] For the support structure and water tank: the support column 3 is made of Q235 steel pipe, and is fully welded to the bottom of the movable plate 1 and fully welded to the top of the support plate 4. The verticality deviation of the support column 3 is ≤0.5mm / m, and the overall load-bearing capacity is ≥2000kg. The water tank 5 placed on top of the support plate 4 is made of PE plastic. The cover plate 6 on the top of the water tank 5 is fixed by a buckle for easy addition of cleaning fluid. The water outlet pipe 7 welded to the top of the cover plate 6 is connected to the connecting hose 8 by a clamp. The connecting hose 8 can move and bend flexibly with the U-shaped frame 17 without the risk of breakage. The water pump in the water tank 5 is fixed by a stainless steel bracket. The water pump inlet is connected to the suction pipe at the bottom of the water tank 5. A filter screen is installed at the end of the suction pipe to prevent impurities from entering the water pump and damaging the impeller.

[0035] For the cleaning components and drive unit: the fixed pipe 9 is made of stainless steel, with a cylindrical tube 10 welded to the bottom. The bottom of the cylindrical tube 10 has spray holes at equal intervals to ensure uniform spraying of the cleaning fluid. The U-shaped frame 17 is made of Q235 steel and welded to the fixed pipe 9 on the inside. The sliding sleeves at both ends of the U-shaped frame 17 slide in cooperation with the sliding rod 16. The sliding rod 16 is welded to the fixed plate 14 through the fixed block 15. The surface of the sliding rod 16 is polished and the sliding resistance is ≤5N. The push rod motor 11 is a DT500 model and is fixed to the support plate 4 by bolts through the L-shaped bracket. The U-shaped block 12 is connected to the output shaft of the push rod motor 11 through a flange. The guide rod 13 is welded to the U-shaped block 12 and the surface of the guide rod 13 is chrome-plated for rust prevention and wear resistance.

[0036] For the membrane assembly and rotating parts: the rotating drum 19 is made of stainless steel tube, and the rotating shafts welded at both ends are connected to the fixed plate 14 through deep groove ball bearings. The radial clearance of the bearings is ≤0.02mm, and the rotational resistance is ≤10N. There are 6 sets of U-shaped plates 20 welded to the annular outer wall of the rotating drum 19, which are equidistantly distributed along the circumference of the rotating drum 19. The grooves on both sides of the U-shaped plates 20 are milled with an accuracy of ±0.1mm. The fixed frame 21 is made of ABS engineering plastic. The filter membrane 22 installed inside is bonded to the fixed frame 21 with epoxy resin, which has good sealing performance. The servo motor 18 is fixed to the fixed plate 14 with bolts through the motor bracket. The output shaft is connected to the rotating shaft of the rotating drum 19 through a plum blossom coupling. The coupling allows a radial deviation of ≤0.1mm to reduce vibration transmission. The linear motor is embedded in the mounting groove of the fixed plate 14. The mover is fixed to the U-shaped frame 17 with bolts. The guide rail of the linear motor is made of stainless steel with an accuracy grade of C3 to ensure that the U-shaped frame 17 moves smoothly.

[0037] For the fastening assembly: the connecting plate 24 is made of ABS plastic, with a welded insert rod 25 at the bottom. A mounting hole is opened on one side of the bottom of the insert rod 25, and a protruding rod 26 is inserted into the mounting hole. The spring at the end of the protruding rod 26 is installed in a spring groove inside the insert rod 25. In its natural state, the protruding rod 26 extends 3mm beyond the surface of the insert rod 25. Pressing the protruding rod 26 compresses the spring, causing the protruding rod 26 to retract into the insert rod 25, facilitating the insertion or removal of the insert rod 25 from the through hole.

[0038] Working principle:

[0039] Equipment preparation and membrane module installation: Based on the wastewater quality of the wastewater treatment plant, select a filter membrane 22 with an appropriate pore size. Insert the fixing frame 21 into the groove of the U-shaped plate 20, aligning the fixing frame 21 with the through hole of the U-shaped plate 20. Pick up the fastening component 23, press the protruding rod 26 to compress the spring, insert the insertion rod 25 into the through hole, release the protruding rod 26, and the spring will return to its original position, pushing the protruding rod 26 out to clamp the U-shaped plate 20 and the fixing frame 21, completing the installation of one set of membrane modules. Repeat the operation to install the remaining 5 sets of membrane modules. Push the equipment to the wastewater inlet of the wastewater treatment plant, lock the casters, connect the drain pipe of the collection tank 2 to the subsequent reuse or discharge pipeline, open the cover 6 of the water tank 5, inject clean water or prepared cleaning agent, and close the cover 6.

[0040] Wastewater filtration process: Start the servo motor 18 of the rotating drum 19 and set the rotation interval to rotate every 1 hour. The rotating drum 19 drives the membrane module on the U-shaped plate 20 to rotate, so that the membrane module connects with the wastewater inlet in sequence. When the wastewater flows through the filter membrane 22, suspended solids, colloids and other impurities are intercepted. The filtered clean water falls into the subsequent treatment tank. At the same time, the push rod motor 11 drives the U-shaped block 12 to move, so that the U-shaped block 12 fits into the currently working fixed frame 21 to prevent the rotating drum 19 from rotating under the impact of water flow and ensure stable filtration.

[0041] Membrane module cleaning process: After the filter membrane 22 has been used for a period of time, the membrane flux decreases and cleaning is required. The sewage inlet valve is closed, and the servo motor 18 drives the membrane module to rotate. Then, the water pump and linear motor in the water tank 5 are started. The water pump delivers the cleaning solution to the nozzle of the cylindrical cylinder 10 through the outlet pipe 7, connecting hose 8, and fixed pipe 9 to form a high-pressure spray. The linear motor drives the U-shaped frame 17 to move at a constant speed along the slide bar 16. The nozzle thoroughly rinses the surface of the filter membrane 22 after it has been flipped, removing impurities trapped on the membrane surface and realizing the automated cleaning of all membrane modules. The waste liquid after cleaning falls into the collection tank 2 and is discharged to the pretreatment unit of the sewage treatment plant through the drain pipe.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A membrane treatment device based on a wastewater treatment plant, comprising a movable plate (1), characterized in that, A collection trough (2) is placed on the top of the movable plate (1), and support columns (3) are welded and fixed at the four corners of the top of the movable plate (1). Support plates (4) are welded and fixed at the top of the four support columns (3). A water tank (5) is placed on the top of the support plate (4), and a cover plate (6) is inserted into the top of the water tank (5). A water outlet pipe (7) is inserted and fixed into the top of the cover plate (6), and a connecting hose (8) is inserted into the top of the water outlet pipe (7). A fixing pipe (9) is inserted into one end of the connecting hose (8), and a cylindrical tube (10) with nozzles evenly distributed at the bottom is inserted and fixed into the bottom end of the fixing pipe (9). A push rod motor (11) is installed and fixed on one side of the outer wall of the support plate (4), and a U-shaped block (12) is installed and fixed at one end of the push rod motor (11). Fixing plates (14) are welded and fixed at both ends of one side of the outer wall of the support plate (4), and two fixing plates (14) are welded and fixed into the two ends of the outer wall of the support plate (4). Fixed blocks (15) are welded and fixed at both ends of the outer wall of the fixed plate (14) on the side away from each other. Sliding rods (16) are welded and fixed between the two fixed blocks (15). The rod walls of the two sliding rods (16) are slidably connected to U-shaped frames (17) that are inserted and fixed to the fixed tube (9). A rotating cylinder (19) is rotatably connected between the two fixed plates (14). U-shaped plates (20) are evenly distributed and welded and fixed on the annular outer wall of the rotating cylinder (19). Fixed frames (21) with filter membranes (22) installed and fixed on the inner walls of both sides of the U-shaped plate (20) are inserted and fixed. Fastening components (23) are connected between the fixing frames (21) and the U-shaped plate (20). The fastening components (23) include a connecting plate (24), a plug rod (25) welded and fixed at both ends of the bottom of the connecting plate (24), and a protruding rod (26) inserted and movable at the bottom of one side of the rod wall of the plug rod (25).

2. The membrane treatment equipment based on a wastewater treatment plant according to claim 1, characterized in that, The four corners of the bottom of the movable plate (1) are all equipped with casters, and an anti-slip pad is glued between the top of the movable plate (1) and the bottom of the collection trough (2).

3. The membrane treatment equipment based on a wastewater treatment plant according to claim 1, characterized in that, The bottom of the collection tank (2) is inclined, and a drain pipe with a control valve is inserted and fixed at one end of the collection tank (2).

4. The membrane treatment equipment based on a wastewater treatment plant according to claim 1, characterized in that, The water tank (5) is equipped with a water pump, and one end of the water pump outlet is connected to the bottom end of the water outlet pipe (7).

5. The membrane treatment equipment based on a wastewater treatment plant according to claim 1, characterized in that, Guide rods (13) are welded and fixed at both ends of one side of the outer wall of the U-shaped block (12), and slots that are inserted into the guide rods (13) are opened at both ends of one side of the outer wall of the support plate (4). The U-shaped block (12) and the fixed frame (21) are inserted into each other.

6. The membrane treatment equipment based on a wastewater treatment plant according to claim 1, characterized in that, One of the fixed plates (14) has a servo motor (18) installed and fixed on one side of its outer wall, and the output shaft of the servo motor (18) is connected and fixed to one end of the rotating shaft of the rotating drum (19) through a coupling. The other fixed plate (14) has a linear motor embedded in one side of its outer wall, and the inner wall of the U-shaped frame (17) is installed and fixed to the moving part of the linear motor.

7. The membrane treatment equipment based on a wastewater treatment plant according to claim 1, characterized in that, The outer walls of both sides of the U-shaped plate (20) are provided with grooves that form an insertion fit with the fixed frame (21), and the top two sides of the U-shaped plate (20) and the top two sides of the fixed frame (21) are provided with through holes that form an insertion fit with the plug rod (25). A spring is provided at the connection between the tail end of the protruding rod (26) and the plug rod (25).

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