An automatic cleaning system based on MBR membrane

Abstract

The application relates to the technical field of MBR membrane, in particular to an automatic cleaning system based on MBR membrane, which comprises a rack and a plurality of MBR membrane modules, the MBR membrane modules are arranged at intervals along the horizontal direction, the MBR membrane modules are detachable on the rack, the MBR membrane modules are used for filtering water quality, a cleaning assembly is arranged on the rack, the cleaning assembly comprises a driving cylinder, a sliding frame and a plurality of scraping rods, the driving cylinder is installed on the top of the rack, the sliding frame is installed on the end of a piston rod of the driving cylinder, the sliding frame slides along the vertical direction, the scraping rods are installed on the sliding frame and correspond to the positions of the MBR membrane modules, a scraping groove is arranged on the surface of the scraping rod, and the groove wall of the scraping groove is in abutting fit with the outer surface of the MBR membrane module; the application has the advantages that the influence of sludge backlog on the normal work of the MBR membrane is reduced.

Description

Technical Field

[0001] This application relates to the field of MBR membrane technology, and in particular to an automated cleaning system based on an MBR membrane. Background Technology

[0002] MBR (Membrane Bioreactor) is an advanced wastewater treatment technology, and the MBR membrane refers to the membrane used in the membrane bioreactor. MBR combines traditional bioreactors and membrane filtration technology to effectively remove suspended solids, microorganisms, and organic matter from wastewater.

[0003] The phenomenon of sludge adhering to the membrane surface after prolonged use in MBR membranes is mainly related to the growth and activity of microorganisms in the bioreactor. As wastewater undergoes biological treatment in the membrane bioreactor, microorganisms degrade organic matter, forming sludge. These microorganisms and sludge particles remain suspended in the water and gradually deposit and accumulate on the membrane surface. Over time, this deposition process leads to the formation of a sludge film on the membrane surface, gradually reducing the membrane's permeability. Summary of the Invention

[0004] To reduce the impact of sludge buildup on the normal operation of MBR membranes, this application provides an automatic cleaning system based on MBR membranes.

[0005] The automatic cleaning system based on MBR membrane provided in this application adopts the following technical solution:

[0006] An automatic cleaning system based on an MBR membrane includes a frame and several MBR membrane modules. The MBR membrane modules are arranged at horizontal intervals and are detachable from the frame. The MBR membrane modules are used to filter water. A cleaning assembly is provided on the frame. The cleaning assembly includes a drive cylinder, a sliding frame, and several scrapers. The drive cylinder is mounted on the top of the frame, and the sliding frame is mounted on the end of the piston rod of the drive cylinder. The sliding frame slides vertically. The scrapers are all mounted on the sliding frame and correspond to the positions of the MBR membrane modules. The surface of each scraper has a scraping groove, and the groove wall abuts against the outer surface of the MBR membrane module.

[0007] By adopting the above technical solution, when the system is running, the cleaning component is activated, and the sliding frame slides vertically, causing the scraper groove to adhere to the outer surface of the MBR membrane module. The movement of the scraper and the design of the scraper groove effectively peel off and remove the attached sludge from the membrane surface, reducing the impact of sludge accumulation on the normal operation of the MBR membrane and maintaining membrane permeability. The automatic cleaning system in this application can operate periodically, ensuring the long-term stable operation of the MBR membrane, extending its service life, and maintaining the high efficiency of the wastewater treatment system.

[0008] Preferably, a control assembly is provided on the frame, the control assembly includes a vision sensor and a controller, the piston rod of the drive cylinder is provided with a marked scale, the vision sensor and the controller are both mounted on the top of the frame, the vision sensor faces the piston rod of the drive cylinder, and the controller is electrically connected to the vision sensor.

[0009] By adopting the above technical solution, the status of the markings on the piston rod is monitored, enabling intelligent control of the scraper's movement. When the vision sensor detects that the movement of the markings slows down or stops, i.e., when the scraper encounters an obstacle, the controller can quickly respond and stop or adjust the action of the drive cylinder to reduce the scraper's forced tearing and damage to the MBR membrane, effectively preventing damage to the MBR membrane.

[0010] Preferably, the frame is provided with a guide rod, the guide rod is arranged in a vertical direction, and the sliding frame is provided with a guide groove, the guide rod and the guide groove slide and cooperate in a vertical direction.

[0011] By adopting the above technical solution and setting guide rods and guide grooves on the sliding frame, precise guidance and control of the sliding frame in the vertical direction are achieved. The guide rods are set vertically, while the guide grooves are located on the sliding frame, and the two slide and cooperate in the vertical direction. This allows the sliding frame to slide stably and accurately along the guide rods during movement, thereby ensuring the precise alignment and smooth movement of the scraper during the cleaning process.

[0012] Preferably, the inner surface of the sliding frame is provided with a bearing groove, the bearing groove is located on one side of the lower groove opening of the scraper groove, and the lower surface of the scraper bar is inclined towards the bearing groove on both sides.

[0013] By adopting the above technical solution, the presence of the support groove allows the scraper to collect and support sludge more effectively during the cleaning of the MBR membrane surface. The inclined support groove not only helps guide the movement of sludge but also reduces the resistance of sludge during the cleaning process, making it easier to collect smoothly.

[0014] Preferably, one end of the carrying groove is open, and a collection box is detachably connected to the side wall of the sliding frame. The collection box is located on one side of the end opening of the carrying groove, and the bottom inner wall of the carrying groove is inclined downward toward the collection box.

[0015] By adopting the above technical solution, when the scraper cleans the MBR membrane surface, the sludge is removed by the scraper groove and flows along the carrier groove. Because the bottom inner wall of the carrier groove slopes downwards, the sludge is guided to the opening at one end of the carrier groove during its flow. Since a collection box is detachably connected to the side wall of the sliding frame, the collection box is located on one side of the carrier groove opening. The collection box can easily collect and consolidate the sludge flowing to the carrier groove opening, reducing the random scattering of sludge during cleaning and facilitating centralized and unified sludge treatment.

[0016] Preferably, the top of the collection box is fixed with an elastic retaining ring, and the side wall of the sliding frame is fixed with a retaining block. The elastic retaining ring is sleeved on the retaining block and engages with the retaining block.

[0017] By adopting the above technical solution, the elastic retaining ring and the retaining block can be engaged to achieve a detachable connection between the collection box and the sliding frame, making it convenient for operators to take out or place the collection box.

[0018] Preferably, the sliding frame rotatably carries several sets of brush rollers, which are located above several scraper bars. Each set of brush rollers consists of two rollers, and the two brush rollers respectively roll into contact with the two side walls of the MBR membrane module.

[0019] By employing the above technical solution, when the sliding frame is cleaning the MBR membrane surface, the brush roller effectively and gently cleans the membrane surface through its rolling action against the side walls of the MBR membrane module. The rolling motion of the brush roller removes dirt and deposits from the membrane surface while minimizing damage to the MBR membrane module during subsequent secondary cleaning. The rolling action against the side walls of the brush roller helps to cover the entire membrane surface, improving the thoroughness and efficiency of the cleaning process.

[0020] Preferably, the sliding frame is further fixed with several sets of baffles, the positions of the several sets of baffles correspond to the positions of the several sets of brush rollers, the baffles are located on one side of the brush rollers, and the bottom end of the baffles extends above the bearing groove.

[0021] By adopting the above technical solution, the baffle on one side of the brush roller forms a barrier. When the brush roller on the sliding frame performs the cleaning operation, the bottom end of the baffle extends above the carrying trough, blocking the sludge that is about to be thrown outward. This allows the sludge output by the brush roller to fall into the carrying trough along the baffle during the cleaning process, reducing secondary diffusion of the sludge and ensuring that the sludge flows into the collection box more concentratedly, thus improving collection efficiency.

[0022] Preferably, a linkage assembly is provided between the several groups of brush rollers. The linkage assembly includes several pairs of bevel gears, several transmission wheels, and a transmission belt. The several pairs of bevel gears are respectively installed on the several groups of brush rollers. A pair of bevel gears meshes with each other and is coaxially fixed with the brush rollers in the same group. The several transmission wheels are coaxially fixed with one of the brush rollers in the several groups. The transmission belt is sleeved on the several transmission wheels. A transmission assembly is provided between the transmission wheels and the frame.

[0023] By adopting the above technical solution, when the transmission component provides power, this power is first transmitted to the transmission wheel connected to the frame. Then, through the sleeve of the transmission belt, the power is transmitted to all the brush rollers in the same group. The meshing of the bevel gears ensures that the brush rollers in the same group can move synchronously, achieving coordinated cleaning. This effectively improves the coordination between the brush rollers, enabling the system to clean the surface of the MBR membrane module more effectively.

[0024] Preferably, the transmission assembly includes a transmission gear and a transmission rack. The transmission gear is coaxially fixed with the transmission wheel, and the transmission rack is mounted on the frame. The transmission rack is arranged along the sliding direction of the sliding frame. The transmission gear and the transmission rack mesh with each other, and the transmission gear is rolled on the transmission rack.

[0025] By adopting the above technical solution, when the sliding frame moves under the drive of the piston rod of the drive cylinder, the transmission gear moves downward relative to the transmission gear. Since the transmission gear and the transmission rack mesh with each other, the transmission gear rotates synchronously under the action of the transmission rack, thereby realizing the rotation of the transmission wheel.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. When the system is running, the cleaning component is activated, and the sliding frame slides vertically, causing the scraper grooves to adhere to the outer surface of the MBR membrane module. The movement of the scraper and the design of the scraper grooves effectively peel off and remove adhering sludge from the membrane surface, maintaining membrane permeability. The automatic cleaning system in this application can operate periodically, ensuring stable long-term operation of the MBR membrane, extending its service life, and maintaining the high efficiency of the wastewater treatment system;

[0028] 2. Monitor the markings on the piston rod to achieve intelligent control of the scraper's movement. When the vision sensor detects that the movement of the markings has slowed down or stopped, i.e., when the scraper encounters an obstacle, the controller can quickly respond and stop or adjust the action of the drive cylinder to reduce the scraper's forced tearing and damage to the MBR membrane, effectively preventing damage to the MBR membrane;

[0029] 3. The presence of the support groove allows the scraper to collect and support sludge more effectively during the cleaning of the MBR membrane surface. The inclined support groove not only helps guide the movement of sludge but also reduces resistance during the cleaning process, making it easier to collect smoothly. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of an automatic cleaning system based on an MBR membrane according to Embodiment 1 of this application.

[0031] Figure 2 This is a diagram showing the relationship between the frame, drive assembly, and control assembly of an automatic cleaning system based on an MBR membrane according to Embodiment 1 of this application.

[0032] Figure 3 This is a system principle block diagram of an automatic cleaning system based on an MBR membrane according to Embodiment 1 of this application.

[0033] Figure 4 This is a diagram showing the coordination relationship between the sliding frame, scraper, support groove, collection box, brush roller, baffle, linkage component and transmission component of an automatic cleaning system based on MBR membrane according to Embodiment 2 of this application.

[0034] Figure 5 yes Figure 4 An enlarged schematic diagram of part A in the middle.

[0035] Figure 6 yes Figure 4 A structural diagram from another perspective.

[0036] Figure 7 yes Figure 6 Enlarged diagram of part B.

[0037] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Support plate; 12. Support seat; 13. Guide rod; 14. Mounting plate; 2. MBR membrane module; 21. Support frame; 22. Membrane module; 3. Cleaning component; 31. Drive cylinder; 32. Sliding frame; 321. Connecting block; 3211. Guide groove; 322. Locking block; 33. Scraper bar; 331. Scraper groove; 4. Control component; 41. Vision sensor; 42. Controller; 5. Support groove; 6. Collection box; 61. Elastic retaining ring; 7. Brush roller; 8. Baffle; 9. Linkage component; 91. Bevel gear; 92. Transmission wheel; 93. Transmission belt; 10. Transmission component; 101. Transmission gear; 102. Transmission rack. Detailed Implementation

[0038] The following is in conjunction with the appendix Figures 1-7 This application will be described in further detail.

[0039] This application discloses an automatic cleaning system based on an MBR membrane.

[0040] Example 1:

[0041] Reference Figure 1 and Figure 2 An automated cleaning system based on an MBR membrane includes a frame 1 and several MBR membrane modules 2. The frame 1 is composed of several rods and has a cuboid frame structure. The several MBR membrane modules 2 are arranged at intervals along the horizontal direction, that is, along the length of the frame 1. The MBR membrane modules 2 are detachable from the frame 1 and are used to filter water. In this embodiment, the MBR membrane module 2 includes a support frame 21 and a membrane module 22. The support frame 21 is used to maintain the shape and stability of the membrane and is fixed to the frame 1 by a snap-fit ​​method, that is, the frame 1 has corresponding grooves for the support frame 21 to snap into and fix it. In addition, the membrane module 22 is composed of a microporous or ultrafiltration membrane and is used to separate microorganisms and solid particles in the water. In this embodiment, the membrane module 22 can be understood as the membrane material of the MBR membrane module 2, which will not be described in detail here.

[0042] On the other hand, a cleaning component 3 is provided on the frame 1. The cleaning component 3 includes a drive cylinder 31, a sliding frame 32, and several scrapers 33. A horizontally arranged support plate 11 is fixed on one side of the top of the frame 1. A support seat 12 is vertically fixed on the top of the support plate 11. The drive cylinder 31 is vertically fixed to the upper surface of the support seat 12. The piston rod of the drive cylinder 31 moves downward through the support seat 12, the support plate 11, and some of the rods that make up the frame 1.

[0043] Meanwhile, the sliding frame 32 is horizontally arranged and has a rectangular ring structure. Both side walls of the sliding frame 32 are vertically fixed with connecting blocks 321. One of the connecting blocks 321 is fixed to the end of the piston rod of the drive cylinder 31. The sliding frame 32 slides vertically.

[0044] In addition, several scraper rods 33 are installed on the sliding frame 32 and correspond to the positions of several MBR membrane modules 2. The scraper rods 33 have scraping grooves 331 on their surfaces, which penetrate the upper and lower surfaces of the scraper rods 33. The groove walls of the scraping grooves 331 abut against the outer surface of the membrane module 22.

[0045] Therefore, when the system is running, the cleaning component 3 is activated, and the sliding frame 32 slides vertically, causing the scraper bar 333's scraping groove 331 to adhere to the outer surface of the MBR membrane module 2. The movement of the scraper bar 33 and the design of the scraping groove 331 effectively peel off and remove the attached sludge from the membrane surface, reducing the impact of sludge accumulation on the normal operation of the MBR membrane and maintaining membrane permeability. The automatic cleaning system in this application can operate periodically, ensuring the long-term stable operation of the MBR membrane, extending its service life, and maintaining the high efficiency of the wastewater treatment system.

[0046] Furthermore, in order to improve the motion stability of the sliding frame 32, a guide rod 13 is also fixed on the frame 1. The guide rod 13 is set in the vertical direction, and a guide groove 3211 is opened on the surface of the connecting block 321 away from the drive cylinder 31. The guide groove 3211 penetrates the upper and lower surfaces of the connecting block 321, and the guide rod 13 and the guide groove 3211 slide and cooperate in the vertical direction.

[0047] Therefore, by setting the guide rod 13 and the guide groove 3211 on the sliding frame 32, precise guidance and control of the sliding frame 32 in the vertical direction are achieved. The guide rod 13 is set in the vertical direction, while the guide groove 3211 is located on the sliding frame 32, and the two slide and cooperate in the vertical direction. This allows the sliding frame 32 to slide vertically along the guide rod 13 stably and accurately during movement, thereby ensuring the precise alignment and smooth movement of the scraper during the cleaning process.

[0048] On the other hand, a control component 4 is also provided on the frame 1. The control component 4 includes a vision sensor 41 and a controller 42. The piston rod of the drive cylinder 31 is provided with a marked scale. The vision sensor 41 and the controller 42 are both mounted on the upper surface of the support plate 11. The vision sensor 41 faces the piston rod of the drive cylinder 31. The controller 42 is electrically connected to the vision sensor 41.

[0049] Reference Figure 2 and Figure 3 Correspondingly, the status of the markings on the piston rod is monitored to achieve intelligent control of the scraper's movement. When the vision sensor 41 detects that the movement of the markings slows down or stops, that is, when the scraper encounters an obstacle, the controller 42 can quickly respond and stop or adjust the action of the drive cylinder 31 to reduce the scraper's forced tearing and damage to the MBR membrane, effectively preventing damage to the MBR membrane.

[0050] It should be noted that in the above process, the vision sensor 41 generates a signal, the signal is transmitted to the controller 42, the controller 42 processes the signal and executes the corresponding algorithm, and finally controls the movement of the drive cylinder 31. In addition, the controller 42 has a built-in microprocessor or PLC, communication interface, power management and drive circuit. Correspondingly, the controller 42 is a control device commonly used in the corresponding field, and will not be described in detail here.

[0051] The implementation principle of an automatic cleaning system based on an MBR membrane in this application embodiment is as follows:

[0052] When the system is running, the cleaning component 3 is activated, and the sliding frame 32 slides vertically, causing the scraper bar 333's scraping groove 331 to adhere to the outer surface of the MBR membrane module 2. The movement of the scraper bar 33 and the design of the scraping groove 331 effectively peel off and remove the attached sludge from the membrane surface, reducing the impact of sludge accumulation on the normal operation of the MBR membrane and maintaining membrane permeability. The automatic cleaning system in this application can operate periodically, ensuring the long-term stable operation of the MBR membrane, extending its service life, and maintaining the high efficiency of the wastewater treatment system.

[0053] Example 2:

[0054] Reference Figure 4 and Figure 5 The difference from Embodiment 1 is that a bearing groove 5 is installed on the inner surface of the sliding frame 32, and the bearing groove 5 is located on one side of the lower groove opening of the scraper groove 331. In this embodiment, the cross-sectional shape of the bearing groove 5 is arc-shaped, and the opening of the bearing groove 5 faces the scraper rod 33. At the same time, the lower surface of the scraper rod 33 is inclined towards the bearing groove 5 on both sides, specifically, the inclination direction is upward from the middle of the scraper rod 33 towards the two side walls of the scraper rod 33.

[0055] Correspondingly, the presence of the carrying groove 5 allows the scraper 33 to collect and carry sludge more effectively during the cleaning of the MBR membrane surface. The inclined carrying groove 5 not only helps guide the movement of sludge but also reduces the resistance of sludge during the cleaning process, making it easier to collect smoothly.

[0056] Furthermore, one end of the carrying groove 5 is open, and the side wall of the sliding frame 32 is detachably connected to the collection box 6. The collection box 6 is located on one side of the end opening of the carrying groove 5, and the bottom inner wall of the carrying groove 5 is inclined downward toward the collection box 6.

[0057] When the scraper cleans the MBR membrane surface, the sludge is removed by the scraper groove 331 and flows along the carrier groove 5. Because the bottom inner wall of the carrier groove 5 slopes downwards, the sludge is guided to the opening at one end of the carrier groove 5 during its flow. Since a collection box 6 is detachably connected to the side wall of the sliding frame 32, the collection box 6 is located on one side of the opening of the carrier groove 5. The collection box 6 can easily collect and consolidate the sludge flowing to the opening of the carrier groove 5, reducing the random scattering of sludge during cleaning and facilitating centralized and unified treatment of the sludge.

[0058] Specifically, two elastic retaining rings 61 are vertically fixed to the top of the collection box 6, and the two elastic retaining rings 61 are located on both sides of the collection box 6. In this embodiment, the elastic retaining rings 61 are made of spring steel with a certain degree of elasticity. At the same time, two locking blocks 322 are fixed to the side wall of the sliding frame 32. The positions of the two locking blocks 322 correspond to the positions of the locking slots. The size of the end of the locking block 322 away from the sliding frame 32 is larger than the size of its other end. The size of the elastic retaining ring 61 is adapted to the size of the end of the locking block 322 closer to the sliding frame 32.

[0059] Therefore, when the elastic retaining ring 61 engages with the locking block 322, the elastic retaining ring 61 is stretched open by one end of the locking block 322, resulting in elastic deformation. When the elastic retaining ring 61 moves to the designated position of the locking block 322, it returns to its original shape under its own elastic force, and one end of the locking block 322 limits the elastic retaining ring 61. Through the engagement of the elastic retaining ring 61 and the locking block 322, a detachable connection between the collection box 6 and the sliding frame 32 can be achieved, facilitating the operator to remove or place the collection box 6.

[0060] Reference Figure 6 and Figure 7 On the other hand, the sliding frame 32 rotatably carries several sets of brush rollers 7, which are located above several scraper bars 33. Each set of brush rollers 7 consists of two rollers, which roll in cooperation with the two side walls of the membrane module 22 respectively.

[0061] Correspondingly, when the sliding frame 32 is cleaning the MBR membrane surface, the brush roller 7 effectively and gently cleans the membrane surface by rolling against the side walls of the MBR membrane module 2. The rolling motion of the brush roller 7 removes dirt and deposits from the membrane surface while reducing damage to the MBR membrane module 2 during subsequent secondary cleaning. The rolling contact design of the side walls of the brush roller 7 helps to cover the entire membrane surface, improving the comprehensiveness and efficiency of the cleaning.

[0062] Furthermore, several sets of baffles 8 are fixed on the sliding frame 32. The baffles 8 are arranged along the length of the brush roller 7. The positions of the several sets of baffles 8 correspond to the positions of the several sets of brush rollers 7. The number of baffles 8 in each set is set to two. The two baffles 8 are located on one side of the two brush rollers 7 respectively. The bottom end of the baffles 8 extends to the top of the bearing groove 5.

[0063] Therefore, the baffle 8, positioned on one side of the brush roller 7, forms a barrier. When the brush roller 7 on the sliding frame 32 performs the cleaning operation, the bottom end of the baffle 8 extends above the carrying groove 5, blocking the sludge that is about to be flung outward. This allows the sludge output by the brush roller 7 to fall into the carrying groove 5 along the baffle 8 during the cleaning process, reducing secondary diffusion of the sludge and ensuring that the sludge flows more concentratedly into the collection box 6, thus improving collection efficiency.

[0064] In addition, a linkage component 9 is provided between several groups of brush rollers 7. The linkage component 9 includes several pairs of bevel gears 91, several transmission wheels 92, and a transmission belt 93. Several pairs of bevel gears 91 are respectively installed on several groups of brush rollers 7. A pair of bevel gears 91 meshes with each other and is coaxially fixed with the brush rollers 7 in the same group. Several transmission wheels 92 are coaxially fixed with one of the brush rollers 7 in several groups. Several transmission wheels 92 are arranged at intervals along the length direction of the frame 1. At the same time, the transmission belt 93 is sleeved on several transmission wheels 92. A transmission component 10 is provided between the transmission wheels 92 and the frame 1.

[0065] Specifically, in this embodiment, two sets of transmission components 10 are provided. The positions of the two sets of transmission components 10 correspond to the positions of the transmission wheels 92 at the beginning and end, respectively, and the two sets of transmission components 10 act on the transmission wheels 92 at the beginning and end, respectively. Taking one set of transmission components 10 as an example, the transmission component 10 includes a transmission gear 101 and a transmission rack 102. The transmission gear 101 is coaxially fixed with the transmission wheel 92 at the beginning. A mounting plate 14 is fixed to the side wall of the frame 1. The mounting plate 14 is arranged in a vertical direction. The transmission rack 102 is mounted on the side wall of the mounting plate 14 on the frame 1. The transmission rack 102 is arranged along the sliding direction of the sliding frame 32. The transmission gear 101 and the transmission rack 102 mesh with each other, and the transmission gear 101 rolls on the transmission rack 102.

[0066] Therefore, when the sliding frame 32 moves under the drive of the piston rod of the drive cylinder 31, the transmission gear 101 moves downward relative to the transmission gear 101. Since the transmission gear 101 and the transmission rack 102 mesh with each other, the transmission gear 101 rotates synchronously under the action of the transmission rack 102, thereby realizing the rotation of the transmission wheel 92.

[0067] Simultaneously, when the aforementioned transmission assembly 10 provides power, this power is first transmitted to the transmission wheel 92 connected to the frame 1. Then, through the engagement of the transmission belt 93, the power is transmitted to all the brush rollers 7 in the same group. The meshing of the bevel gears 91 ensures that the brush rollers 7 in the same group can move synchronously, achieving coordinated cleaning. This effectively improves the coordination between the brush rollers 7, enabling the system to clean the surface of the MBR membrane module 2 more efficiently.

[0068] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automated cleaning system based on an MBR membrane, characterized in that, The system includes a frame (1) and several MBR membrane modules (2), which are arranged at intervals in a horizontal direction. The MBR membrane modules (2) are detachable from the frame (1) and are used to filter water. A cleaning assembly (3) is provided on the frame (1). The cleaning assembly (3) includes a drive cylinder (31), a sliding frame (32), and several scrapers (33). The drive cylinder (31) is mounted on... At the top of the frame (1), the sliding frame (32) is installed at the end of the piston rod of the drive cylinder (31). The sliding frame (32) slides vertically. Several scraper rods (33) are installed on the sliding frame (32) and correspond to the positions of several MBR membrane modules (2). The surface of the scraper rod (33) is provided with a scraping groove (331). The groove wall of the scraping groove (331) abuts against the outer surface of the MBR membrane module (2). A control component (4) is provided on the frame (1). The control component (4) includes a vision sensor (41) and a controller (42). The piston rod of the drive cylinder (31) is marked with a scale. The vision sensor (41) and the controller (42) are both mounted on the top of the frame (1). The vision sensor (41) faces the piston rod of the drive cylinder (31). The controller (42) is electrically connected to the vision sensor (41).

2. The automatic cleaning system based on an MBR membrane according to claim 1, characterized in that, The frame (1) is provided with a guide rod (13), which is arranged in the vertical direction. The sliding frame (32) is provided with a guide groove (3211), and the guide rod (13) and the guide groove (3211) slide and cooperate in the vertical direction.

3. The automatic cleaning system based on an MBR membrane according to claim 1, characterized in that, The inner surface of the sliding frame (32) is equipped with a bearing groove (5), which is located on one side of the lower groove opening of the scraper groove (331). The lower surfaces of the scraper rod (33) are inclined towards the bearing groove (5).

4. The automatic cleaning system based on an MBR membrane according to claim 3, characterized in that, One end of the bearing groove (5) is open, and a collection box (6) is detachably connected to the side wall of the sliding frame (32). The collection box (6) is located on one side of the end opening of the bearing groove (5), and the bottom inner wall of the bearing groove (5) is inclined downward toward the collection box (6).

5. An automatic cleaning system based on an MBR membrane according to claim 4, characterized in that, The top of the collection box (6) is fixed with an elastic retaining ring (61), and the side wall of the sliding frame (32) is fixed with a retaining block (322). The elastic retaining ring (61) is sleeved on the retaining block (322) and engages with the retaining block (322).

6. An automatic cleaning system based on an MBR membrane according to claim 3, characterized in that, The sliding frame (32) rotatably carries several sets of brush rollers (7). The several sets of brush rollers (7) are located above several scraper bars (33). Each set of brush rollers (7) consists of two rollers, and the two brush rollers (7) respectively roll into contact with the two side walls of the MBR membrane module (2).

7. An automatic cleaning system based on an MBR membrane according to claim 6, characterized in that, The sliding frame (32) is also fixed with several sets of baffles (8), the positions of the several sets of baffles (8) correspond to the positions of the several sets of brush rollers (7), the baffles (8) are located on one side of the brush rollers (7), and the bottom end of the baffles (8) extends to the top of the bearing groove (5).

8. An automatic cleaning system based on an MBR membrane according to claim 7, characterized in that, A linkage assembly (9) is provided between several groups of brush rollers (7). The linkage assembly (9) includes several pairs of bevel gears (91), several transmission wheels (92), and a transmission belt (93). Several pairs of bevel gears (91) are respectively installed on several groups of brush rollers (7). A pair of bevel gears (91) mesh with each other and are respectively coaxially fixed with the brush rollers (7) in the same group. Several transmission wheels (92) are respectively coaxially fixed with one of the brush rollers (7) in several groups. The transmission belt (93) is sleeved on several transmission wheels (92). A transmission assembly (10) is provided between the transmission wheels (92) and the frame (1).

9. An automatic cleaning system based on an MBR membrane according to claim 8, characterized in that, The transmission assembly (10) includes a transmission gear (101) and a transmission rack (102). The transmission gear (101) is coaxially fixed with one of the transmission wheels (92). The transmission rack (102) is mounted on the frame (1) and is arranged along the sliding direction of the sliding frame (32). The transmission gear (101) and the transmission rack (102) mesh with each other, and the transmission gear (101) is rolled on the transmission rack (102).

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