Membrane structure wastewater treatment device

Abstract

The utility model relates to the technical field of wastewater treatment, and discloses a membrane structure wastewater treatment device which specifically comprises a device body, a fixed frame I, a fixed frame II, a cleaning structure, a rotating frame, a filter screen and a protective screen, the sweeping structure comprises a first scraper blade, the other end of the first scraper blade is connected with a connecting block through a second hydraulic telescopic rod, the outer ring of the other end of the connecting block is movably connected with a sweeping brush, the other end of the connecting block is connected with a second scraper blade through a third hydraulic telescopic rod, and the sweeping brush is located between the first scraper blade and the second scraper blade. According to the membrane structure wastewater treatment device, through the arrangement of the cleaning structure, when the cleaning structure is used, impurities adhering to the inner wall of the filter screen can be scraped off firstly, then the cleaning brush is used for brushing off the impurities adhering to meshes of the filter screen, the cleaning effect of the filter screen is improved, the cleaning structure can push the impurities into the collecting frame, cleaning of the impurities is facilitated, and the cleaning effect is improved. And the influence of the swept impurities on the use of the filter screen can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a membrane structure wastewater treatment device. Background Technology

[0002] Membrane separation technology, due to its combined functions of separation, concentration, purification, and refining, as well as its high efficiency, energy saving, environmental friendliness, molecular-level filtration, and simple and easy-to-control filtration process, has been widely used in wastewater treatment. A search revealed several membrane-structured wastewater treatment devices in the prior art, such as the authorized patent application CN202221919425.9, which discloses a wastewater treatment device based on molecular membrane technology. This device, belonging to the field of wastewater treatment device technology, includes a treatment tank. A high-pressure water pump is fixed to the outer wall of the treatment tank via a support base. One outlet of the high-pressure water pump is connected to a water supply pipe, the other end of which extends into the treatment tank and connects to the top inlet of a water tank. The water tank is fixed inside the treatment tank, and components such as a water impeller are rotatably connected to the water tank via a connecting shaft.

[0003] In the above-mentioned solution, a scraper can be used to remove impurities adhering to the surface of the filter screen. However, impurities will also adhere to the mesh of the filter screen during use. Cleaning only the surface of the filter screen has limited cleaning effect. After a period of use, the mesh of the filter screen may become clogged with dirt. The filter screen in the above-mentioned solution still needs to be removed, replaced and cleaned. Furthermore, since the filter screen in the above-mentioned solution is installed inside the treatment tank, the removal and installation of the filter screen is difficult. During the removal and installation of the filter screen, the above-mentioned solution cannot continue to be used, thereby reducing the working efficiency of wastewater treatment. Based on this, this application proposes a membrane structure wastewater treatment device. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a membrane structure wastewater treatment device, which solves the problems mentioned in the background art, such as the inability to clean the mesh of the filter screen when using a scraper to remove impurities adhering to the filter screen, the possibility of the filter screen mesh becoming clogged with dirt, affecting the cleaning effect of the filter screen; the difficulty in disassembling and assembling the filter screen, and the inability of the wastewater treatment device to continue working when the filter screen is removed, affecting the efficiency of wastewater treatment.

[0005] This utility model provides the following technical solution: a membrane structure wastewater treatment device, comprising a device body, a first fixed frame, and a second fixed frame. The top of the device body has through holes on both sides. The inner cavity of the device body communicates with the inner cavity of either the first or second fixed frame through the through holes. A hydraulic telescopic rod is fixedly connected to the top of the inner cavity of the first fixed frame, and a cleaning structure is fixedly connected to the other end of the first hydraulic telescopic rod. An opening / closing door is provided inside the inner cavity of the first fixed frame, and the cleaning structure is located on the side of the opening / closing door closer to the device body. An opening / closing door is provided inside the inner cavity of the second fixed frame, and a wastewater inlet pipe is fixed to the top of the second fixed frame. The other end of the wastewater inlet pipe passes through the opening / closing door and extends into the inner cavity of the device body. The cleaning structure is movably connected to the wastewater inlet pipe, and wastewater outlets are evenly distributed at the bottom of one end of the wastewater inlet pipe located on the device body. The opening / closing door is movably connected to the wastewater inlet pipe. Impurity collection frames are provided at the bottom of the inner cavities of both the first and second fixed frames.

[0006] The cleaning structure includes a first scraper fixedly connected to a hydraulic telescopic rod, the other end of the first scraper is connected to a connecting block via a hydraulic telescopic rod, a cleaning brush is movably connected to the outer ring of the middle part of the connecting block, and the other end of the connecting block is connected to a second scraper via a hydraulic telescopic rod, with the cleaning brush located between the first scraper and the second scraper.

[0007] A rotating frame is movably connected to the top of the inner cavity of the device body. The end of the rotating frame is movably connected to the through hole. The cleaning structure is adapted to the inner cavity of the rotating frame. The other end of the wastewater inlet pipe is located in the middle of the inner cavity of the rotating frame. A filter screen is evenly fixedly connected to the rotating frame. A protective net is movably connected to the outer ring of the top of the rotating frame. The protective net is fixedly connected to the device body. A drain outlet is provided on one side of the bottom end of the device body.

[0008] Preferably, the inner diameter of the filter screen is the same as the inner diameter of the rotating frame, and a disassembly plate is fixed to the top of the device body.

[0009] Preferably, the opening and closing door includes a sealing plate connected to the fixed frame via a spring. The sealing plate is movably connected to one end of the hydraulic telescopic rod near the device body. The sealing plate is adapted to the through hole. An electromagnet is fixed on one side of the sealing plate. An electromagnet adapted to the electromagnet is provided on the fixed frame.

[0010] Preferably, the second opening and closing door includes a second sealing plate connected to the second fixed frame via a second spring. The second sealing plate is movably connected to the wastewater inlet pipe. The second sealing plate is adapted to the through hole. An electromagnet third is fixed on the second sealing plate. An electromagnet fourth adapted to the electromagnet third is fixed on the second fixed frame.

[0011] Preferably, a cleaning motor is fixedly connected inside the inner cavity of the connecting block, a gear is fixedly connected to the end of the output shaft of the cleaning motor, and a toothed ring is fixed to the inner wall of the cleaning brush, with the gear meshing with the toothed ring.

[0012] Preferably, the cleaning brush, the first scraper, and the second scraper are all in contact with the inner wall of the filter screen, the outer diameter of the connecting block is smaller than the inner diameter of the filter screen, and the connecting block, the first scraper, and the second scraper are all movably connected to the wastewater inlet pipe.

[0013] Preferably, a gear ring two is fixedly connected to the outer ring of one end of the rotating frame, a rotary motor is fixedly connected to the inner cavity of the device body, and a gear two that meshes with the gear ring two is fixedly connected to the end of the output shaft of the rotary motor.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This membrane structure wastewater treatment device, through the setting of the cleaning structure, can first scrape off the impurities adhering to the inner wall of the filter screen during use, and then use the cleaning brush to brush off the impurities adhering to the mesh of the filter screen, thereby improving the cleaning effect of the filter screen. In addition, the cleaning structure can push the impurities into the collection frame, which is convenient for cleaning the impurities and can prevent the swept-off impurities from affecting the use of the filter screen.

[0016] 2. This membrane structure wastewater treatment device, through the arrangement of a rotating frame, filter screen, and protective net, allows other filter screens connected to the rotating frame to continue filtering wastewater when the filter screen is replaced. This ensures the treatment device can continue filtering wastewater even when the filter screen is replaced, guaranteeing the working efficiency of the treatment device. Furthermore, the protective net can intercept wastewater, preventing unfiltered wastewater from overflowing and improving the reliability of the device during use. Attached Figure Description

[0017] Figure 1 This is a front view of the structure of this utility model;

[0018] Figure 2 The structure of this utility model Figure 1 Rear view illustration;

[0019] Figure 3 The structure of this utility model Figure 1 Cross-sectional view;

[0020] Figure 4 This is a schematic diagram showing the connection between the first and second opening / closing doors of this utility model and the device body;

[0021] Figure 5 The structure of this utility model Figure 4 Rear view illustration;

[0022] Figure 6 The structure of this utility model Figure 4 Cross-sectional view;

[0023] Figure 7 The structure of this utility model Figure 4 Explosion diagram;

[0024] Figure 8 This is an exploded view of the cleaning structure of this utility model.

[0025] In the diagram: 1. Device body; 2. Disassembly plate; 3. Fixing frame one; 4. Hydraulic telescopic rod one; 5. Impurity collection frame; 6. Drain outlet; 7. Wastewater inlet pipe; 8. Electromagnet four; 9. Guide plate; 10. Electromagnet three; 11. Sealing plate one; 12. Sealing plate two; 13. Spring two; 14. Protective net; 15. Spring one; 16. Rotating frame; 17. Filter screen; 18. First scraper; 19. Connecting block; 20. Hydraulic telescopic rod two; 21. Sweeping brush; 22. Hydraulic telescopic rod three; 23. Second scraper; 24. Sweeping motor; 25. Gear one; 26. Rotating motor; 27. Gear two; 28. Gear ring two; 29. ​​Fixing frame two. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] This utility model provides a membrane structure wastewater treatment device, including a device body 1, a first fixed frame 3 and a second fixed frame 29. A rotating frame 16 is movably connected to the top of the inner cavity of the device body 1. Both sides of the top of the device body 1 are provided with through holes. The end of the rotating frame 16 is movably connected to the inner cavity of the through holes. At least two filter screens 17 are uniformly fixedly connected to the rotating frame 16. The inner diameter of the filter screen 17 is the same as the inner diameter of the rotating frame 16. The filter screen 17 and the rotating frame 16 form a cylindrical structure. A second gear ring 28 is fixedly connected to the outer ring of one end of the rotating frame 16. A rotary motor 26 is fixedly connected to the inner cavity of the device body 1. The output shaft end of the rotary motor 26 is fixedly connected to a second gear 27 that meshes with the second gear ring 28 through a reducer. With the rotary motor 26, the rotation of the rotary motor 26 can drive the gear 27 fixedly connected to it to rotate. The gear 27 can drive the rotating frame 16 to rotate through the gear ring 28 meshing with it. When the rotating frame 16 rotates, the position of the filter screen 17 connected to the rotating frame 16 can change, which facilitates the replacement of the filter screen 17. During the replacement of the filter screen 17, other filter screens 17 connected to the rotating frame 16 can continue to filter the wastewater. Thus, when the filter screens in the device are replaced, the treatment device can continue to filter the wastewater, ensuring the working efficiency of the treatment device.

[0028] A protective net 14 is movably connected to the outer ring of the top of the rotating frame 16. The cylindrical structure formed by the filter screen 17 and the rotating frame 16 is movably connected to the inner cavity of the protective net 14. The mesh diameter of the protective net 14 is the same as that of the filter screen 17. The protective net 14 is fixedly connected to the device body 1, and the top of the protective net 14 is located above the rotating frame 16. In some embodiments of this application, both the protective net 14 and the filter screen 17 are ultrafiltration membranes. Through the setting of the protective net 14, during the replacement of the filter screen 17, the protective net 14 can intercept and filter wastewater, preventing unfiltered wastewater from overflowing from the removed part of the filter screen 17, thus improving the reliability of the device during use.

[0029] The top of the device body 1 is fixed with a disassembly plate 2. When the device is in use, the disassembly plate 2 can be removed to facilitate the replacement of the filter screen 17 by the staff.

[0030] A drain outlet 6 is provided on one side of the bottom end of the device body 1. Through the setting of the drain outlet 6, the filtered wastewater can be discharged through the drain outlet 6.

[0031] The inner cavity of the device body 1 is connected to the inner cavity of the first fixed frame 3 or the inner cavity of the second fixed frame 29 through a through hole. The inner cavity of the first fixed frame 3 is provided with an opening and closing door, which can be used to block the through hole. In some embodiments of this application, the opening and closing door includes a spring 15 fixedly connected to the first fixed frame 3. The other end of the spring 15 is fixedly connected to a sealing plate 11. The sealing plate 11 is adapted to the through hole, and under the action of the spring 15's rebound force, the spring 15 can squeeze the sealing plate 11, so that the sealing plate 11 can block the through hole. An electromagnet is fixed to one side of the sealing plate 11, and an electromagnet 2 adapted to the electromagnet is provided on the fixing frame 3. When both electromagnets 1 and 2 are energized and the current flowing through them is in the same direction, they are magnetically attracted to each other. With this setup, when the device is in use, the operator energizes the electromagnets 1 and 2, and the sealing plate 11 can move away from the through hole, thereby keeping the through hole open.

[0032] A guide plate 9 is fixedly connected to the top of the inner cavity of the fixed frame 3. The guide plate 9 is in a movable connection with the sealing plate 11. The guide plate 9 can be used for positioning, so that the sealing plate 11 can move in the extension and retraction direction of the spring 15.

[0033] A hydraulic telescopic rod 4 is fixedly connected to the top of the inner cavity of the fixed frame 3. The sealing plate 11 is movably connected to the end of the hydraulic telescopic rod 4 near the device body 1. A cleaning structure is fixedly connected to the end of the hydraulic telescopic rod 4 near the device body 1, and the cleaning structure is located on the side of the sealing plate 11 near the device body 1. As can be seen from the above description, the position of the cleaning structure can be changed under the action of the hydraulic telescopic rod 4, and the sealing plate 11 and the cleaning structure will not affect each other.

[0034] The cleaning structure extends into the cylindrical structure formed by the filter screen 17 and the rotating frame 16 under the action of the hydraulic telescopic rod 4. The cleaning structure includes a first scraper 18 fixedly connected to the hydraulic telescopic rod 4. The other end of the first scraper 18 is connected to a connecting block 19 via a hydraulic telescopic rod 20. A cleaning brush 21 is movably connected to the outer ring of the middle part of the connecting block 19. The other end of the connecting block 19 is connected to a second scraper 23 via a hydraulic telescopic rod 22. The cleaning brush 21 is located between the first scraper 18 and the second scraper 23, and all three of them, including the cleaning brush 21, the first scraper 18, and the second scraper 23, are in contact with the inner wall of the filter screen 17. The outer diameter of the connecting block 19 is smaller than the inner diameter of the filter screen 17. The size of the connecting block 19 can be set according to requirements and is not limited here. By extending and retracting the second hydraulic telescopic rod 20, the distance between the first scraper 18 and the cleaning brush 21 can be changed. Similarly, the distance between the second scraper 23 and the cleaning brush 21 can be changed by extending and retracting the third hydraulic telescopic rod 22. This reduces the space occupied by the cleaning mechanism, making it easier to store the cleaning structure. Furthermore, the first scraper 18 and the connecting block 19 can squeeze out impurities between them, and the second scraper 23 and the connecting block 19 can also squeeze out impurities between them, draining wastewater and facilitating the collection of impurities.

[0035] A cleaning motor 24 is fixedly connected inside the cavity of the connecting block 19. A gear 25 is fixedly connected to the end of the output shaft of the cleaning motor 24. A gear ring is fixed to the inner wall of the cleaning brush 21. The gear 25 meshes with the gear ring. Through the setting of the cleaning motor 24, the rotation of the cleaning motor 24 can drive the gear 25 fixedly connected to it to rotate. The gear 25 can drive the cleaning brush 21 to rotate through the gear ring meshing with it.

[0036] As described above, when the cleaning structure moves within the cylindrical structure formed by the filter screen 17 and the rotating frame 16, the first scraper 18 or the second scraper 23 can scrape off the impurities adhering to the inner wall of the filter screen 17, while the cleaning brush 21 can brush off the impurities adhering to the mesh of the filter screen 17 when rotating, thus improving the cleaning effect of the filter screen. The impurities brushed off by the cleaning brush 21 can fall between the cleaning brush 21 and the first scraper 18 and between the cleaning brush 21 and the second scraper 23. Furthermore, when the cleaning structure moves, it can move the impurities, preventing impurities intercepted by the filter screen from affecting the use of the filter screen. Under the action of the cleaning structure, the impurities can be discharged through the through holes.

[0037] An impurity collection frame 5 is provided at the bottom of the inner cavity of the fixed frame 3. The impurity collection frame 5 can be used to collect the impurities pushed out by the cleaning structure.

[0038] The top of the inner cavity of the fixed frame 29 is provided with an opening and closing door 2. The opening and closing door 2 includes a sealing plate 2 12 connected to the fixed frame 29 via a spring 2 13. Another guide plate 9 is fixed to the top of the fixed frame 29. The sealing plate 2 12 is movably connected to the other guide plate 9. An electromagnet 3 10 is fixed on the sealing plate 2 12. An electromagnet 4 8 adapted to the electromagnet 3 10 is fixed on the fixed frame 29. When both the electromagnet 3 10 and the electromagnet 4 8 are energized, and the direction of the current flowing through the electromagnet 3 10 and the electromagnet 4 8 is... At the same time, electromagnets 310 and 48 are in a state of magnetic attraction. With this configuration, when the device is in use, the operator energizes electromagnets 310 and 48, and the sealing plate 212 can move away from the through hole, so that the through hole between the fixing frame 29 and the device body 1 is in an open state, which facilitates the cleaning structure to push out the impurities intercepted in the device body 1. When electromagnets 310 and 48 are de-energized, the sealing plate 212 can block the through hole under the action of the spring 213.

[0039] A wastewater inlet pipe 7 is fixed to the top of the inner cavity of the fixed frame 29. One end of the wastewater inlet pipe 7 is located outside the fixed frame 29, and the other end of the wastewater inlet pipe 7 passes through the sealing plate 212 and extends to the middle of the inner cavity of the rotating frame 16. The connecting block 19, the first scraper 18, and the second scraper 23 in the cleaning structure are all movably connected to the wastewater inlet pipe 7. The sealing plate 212 is movably connected to the wastewater inlet pipe 7, and wastewater outlets are evenly provided at the bottom of the end of the wastewater inlet pipe 7 located inside the rotating frame 16. The wastewater to be treated can be discharged into the cylindrical structure formed by the rotating frame 16 and the filter screen 17 through the wastewater inlet pipe 7. The filter screen 17 can filter impurities.

[0040] Another impurity collection frame 5 is provided at the bottom of the inner cavity of the fixed frame 29. The impurities pushed out by the cleaning structure can be collected by the other impurity collection frame 5.

[0041] All electrical components involved in this application are existing technologies, and those skilled in the art understand their connection methods. With the help of those skilled in the art, all electrical components in this application can be connected to their compatible power supplies via wires. A suitable controller can be selected according to the actual situation to meet control requirements. Specific connections and control sequences are described below. The electrical connections between the various electrical components are completed in the order of their operation. The detailed connection methods are well-known in the art. The following mainly describes the working principle and process, and will not elaborate on the electrical control. In some embodiments of this application, electromagnet one, electromagnet two, electromagnet three 10, and electromagnet four 8 are all model BJ-DH-50.

[0042] In summary, when the membrane structure wastewater treatment device is in use, the first scraper 18 or the second scraper 23 in the cleaning structure blocks one through hole of the device body 1, and the sealing plate 11 or the sealing plate 12 that blocks the through hole is in close contact with the second scraper 23 or the first scraper 18 in the cleaning structure. The wastewater to be treated can be injected into the cylindrical structure formed by the rotating frame 16 and the filter screen 17 through the wastewater outlet provided on the wastewater inlet pipe 7. The filter screen 17 can intercept impurities in the wastewater, and the filtered water is discharged through the drain outlet 6.

[0043] If the first scraper 18 in the cleaning structure blocks the through hole, the sealing plate 12 and the second scraper 23 will be in contact. When the filter screen 17 needs to be cleaned, the hydraulic telescopic rod 4 retracts until it moves the cleaning structure into the inner cavity of the cylindrical structure formed by the rotating frame 16 and the filter screen 17. At this time, under the action of the spring 13, the sealing plate 12 blocks the through hole, and the inner cavity of the device body 1 is sealed. During the movement of the cleaning structure driven by the hydraulic telescopic rod 4, the first scraper 18 will adhere to the inner wall of the filter screen 17. The cleaning brush 21, under the action of the cleaning motor 24, scrapes off the impurities attached to the mesh of the filter screen 17. The scraped impurities are located between the cleaning brush 21 and the first scraper 18, and between the cleaning brush 21 and the second scraper 23. The second scraper 23 pushes the scraped impurities to move. When the first scraper 18 moves to the outside of the filter screen 17, the same current is passed to both electromagnets 1 and 2. Electromagnets 1 and 2 are in a magnetic attraction state. Under the action of this attraction, the sealing plate 11 moves away from the device body 1, and the first scraper 18 can push the impurities to the device body. In addition, the impurity collection box 5 set in the fixed frame 3 can collect impurities. When the first scraper 18 moves to the outside of the device body, the second scraper 23 moves to the outside of the wastewater discharge port to prevent wastewater from being discharged between the cleaning structures. When the second scraper 23 blocks the through hole, as the hydraulic telescopic rod 4 continues to retract, the hydraulic telescopic rods 20 and 3 extend. The sum of the extension lengths of the hydraulic telescopic rods 20 and 3 is the same as the retraction length of the hydraulic telescopic rod 4, so that the distance between the second scraper 23 and the cleaning brush 21 is... The distance between the first scraper 18 and the cleaning brush 21 increases until the end of the second scraper 23 near the cleaning brush 21 is flush with the end of the device body 1 near the cleaning brush 21. Impurities pushed out by the cleaning structure can fall into the impurity collection frame 5. After the impurities are collected, the hydraulic telescopic rods 20 and 32 retract, and the hydraulic telescopic rod 4 extends. The sum of the retracted lengths of the hydraulic telescopic rods 20 and 32 is the same as the extended length of the hydraulic telescopic rod 4, so that the floor space occupied by the cleaning structure is reduced while the position of the second scraper 23 remains unchanged.

[0044] If the filter screen 17 needs to be replaced, when the filter screen 17 to be replaced is moved above the rotating frame 16, the staff can remove the disassembly plate 2 and replace the filter screen 17.

[0045] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A membrane structure wastewater treatment apparatus comprising an apparatus body (1), a fixed frame one (3) and a fixed frame two (29), characterized in that: Both sides of the top end of the device body (1) are provided with through holes, the inner cavity of the device body (1) is communicated with the inner cavity of the fixed frame one (3) or the inner cavity of the fixed frame two (29) through the through hole, the top end of the inner cavity of the fixed frame one (3) is fixedly connected with the hydraulic telescopic rod one (4), the other end of the hydraulic telescopic rod one (4) is fixedly connected with the cleaning structure, the inner cavity of the fixed frame one (3) is provided with an opening and closing door one, and the cleaning structure is located on the side of the opening and closing door one close to the device body (1); The inner cavity of the fixed frame two (29) is provided with an opening and closing door two, the top end of the fixed frame two (29) is fixedly connected with a wastewater inlet pipe (7), the other end of the wastewater inlet pipe (7) penetrates through the opening and closing door two and extends into the inner cavity of the device body (1), the cleaning structure is movably connected with the wastewater inlet pipe (7), and the bottom of one end of the device body (1) is uniformly provided with a wastewater outlet, and the opening and closing door two is movably connected with the wastewater inlet pipe (7); The bottom end of the inner cavity of the fixed frame one (3) and the fixed frame two (29) is provided with an impurity collecting frame (5); The cleaning structure comprises a first scraper (18) fixedly connected with the hydraulic telescopic rod one (4), the other end of the first scraper (18) is connected with a connecting block (19) through a hydraulic telescopic rod two (20), the outer ring of the middle part of the connecting block (19) is movably connected with a cleaning brush (21), and the other end of the connecting block (19) is connected with a second scraper (23) through a hydraulic telescopic rod three (22); The cleaning brush (21) is located between the first scraper (18) and the second scraper (23). The top end of the inner cavity of the device body (1) is movably connected with a rotating frame (16), the end of the rotating frame (16) is movably connected with the through hole, the cleaning structure is matched with the inner cavity of the rotating frame (16), the other end of the wastewater inlet pipe (7) is located in the middle part of the inner cavity of the rotating frame (16), the rotating frame (16) is uniformly fixedly connected with a filter screen (17), the outer ring of the top end of the rotating frame (16) is movably connected with a protective net (14), the protective net (14) is fixedly connected with the device body (1), and one side of the bottom end of the device body (1) is provided with a drain port (6).

2. A membrane structure wastewater treatment apparatus according to claim 1, wherein: The inner diameter of the filter screen (17) is the same as the inner diameter of the rotating frame (16), and the top of the device body (1) is fixedly connected with a dismounting plate (2).

3. A membrane bio-reactor wastewater treatment plant according to claim 1, wherein: The opening and closing door one comprises a blocking plate one (11) connected with the fixed frame one (3) through a spring one (15), one end of the blocking plate one (11) is movably connected with the hydraulic telescopic rod one (4), the blocking plate one (11) is matched with the through hole, one side of the blocking plate one (11) is fixedly connected with an electromagnet one, and the fixed frame one (3) is provided with an electromagnet two matched with the electromagnet one.

4. A membrane bio-reactor wastewater treatment plant according to claim 1, wherein: The second opening and closing door comprises a blocking plate two (12) connected with a fixed frame two (29) through a spring two (13), the blocking plate two (12) is movably connected with the wastewater inlet pipe (7), the blocking plate two (12) is matched with the through hole, and the blocking plate two (12) is fixed with an electromagnet three (10), and the fixed frame two (29) is fixed with an electromagnet four (8) matched with the electromagnet three (10).

5. A membrane bio-reactor wastewater treatment plant according to claim 1, wherein: The inner cavity of the connecting block (19) is fixedly connected with a cleaning motor (24), the output shaft of the cleaning motor (24) is fixedly connected with a gear one (25), the inner wall of the cleaning brush (21) is fixedly connected with a gear ring one, and the gear one (25) is engaged with the gear ring one.

6. A membrane bio-reactor wastewater treatment device according to claim 1, wherein: The cleaning brush (21), the first scraper (18) and the second scraper (23) are all in contact with the inner wall of the filter screen (17), the outer diameter of the connecting block (19) is smaller than the inner diameter of the filter screen (17), and the connecting block (19), the first scraper (18) and the second scraper (23) are all movably connected with the wastewater inlet pipe (7).

7. A membrane bio-reactor wastewater treatment device according to claim 1, wherein: The outer ring of one end of the rotating frame (16) is fixedly connected with a gear ring two (28), the inner cavity of the device body (1) is fixedly connected with a rotating motor (26), and the output shaft of the rotating motor (26) is fixedly connected with a gear two (27) engaged with the gear ring two (28).

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