Ceramic membrane sewage treatment equipment with self-cleaning function

Abstract

The invention discloses ceramic membrane sewage treatment equipment with a self-cleaning function, and relates to the technical field of sewage treatment.The ceramic membrane sewage treatment equipment comprises a machine body, a bottom cover is installed at the bottom of the machine body, a plurality of tubular ceramic membranes are fixedly installed on the machine body, a top cover is rotatably installed at the top of the machine body, and the top cover and the bottom cover are fixedly connected through a U-shaped rod; the device further comprises a movable sleeve, the movable sleeve is installed on the top cover in a sliding mode through a lifting assembly, a cleaning cavity matched with the tubular ceramic membrane is formed in the movable sleeve, a partition plate is fixedly installed in the top cover, and the interior of the top cover is divided into an extraction cavity and a cavity through the partition plate. The device has the advantages that a plurality of tubular ceramic membranes can be regularly isolated and cleaned, meanwhile, the cleaning effect on the outer surfaces and inner membranes of the tubular ceramic membranes can be guaranteed, the cleaning process and the sewage treatment action do not conflict, continuous operation of the device can be guaranteed, and the service life of the device is prolonged. The sewage treatment effect and the overall treatment efficiency of the equipment during long-time operation are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to a ceramic membrane sewage treatment device with a self-cleaning function. Background Art

[0002] Ceramic membrane is a high-performance separation membrane made of inorganic materials such as alumina, zirconium oxide, and silicon carbide. It has the characteristics of high temperature resistance, corrosion resistance, high mechanical strength, and long life. It is widely used in industrial wastewater, municipal sewage, drinking water purification and other fields. Currently, the common bottom membranes in sewage treatment equipment are mostly tubular ceramic membranes.

[0003] When using tubular ceramic membranes for sewage treatment, internal pressure filtration is generally used. The water to be treated is pumped into the tube, and then under pressure, the water radially penetrates from the inside of the tube to the outside of the tube. The filtrate passes through the membrane wall and collects on the outside of the membrane assembly, and the concentrate is discharged from the other end of the tube. As the operating time increases, the tubular ceramic membrane will inevitably have problems such as scaling on the outside and clogging on the inside, which seriously affects the sewage treatment effect. At this time, it needs to be cleaned.

[0004] The currently used tubular ceramic membrane sewage treatment equipment cannot automatically clean the tubular ceramic membrane regularly, resulting in poor treatment effect after long-term use. In addition, the equipment needs to be stopped during cleaning, which will reduce the overall treatment efficiency. Therefore, it is necessary to design a ceramic membrane sewage treatment equipment with self-cleaning function. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a ceramic membrane sewage treatment device with a self-cleaning function, which solves the problems raised in the above background technology.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A ceramic membrane sewage treatment device with a self-cleaning function comprises a body, a bottom cover is mounted on the bottom of the body, a plurality of tubular ceramic membranes are fixedly mounted on the body, a top cover is rotatably mounted on the top of the body, and the top cover and the bottom cover are fixedly connected by a U-shaped rod, and further comprises:

[0008] A movable sleeve is slidably mounted on the top cover through a lifting assembly, and a cleaning cavity is provided on the movable sleeve to cooperate with the tubular ceramic membrane. A partition is fixedly installed in the top cover, and the partition divides the top cover into an extraction cavity and a cavity. The cavity cooperates with the movable sleeve, and the movable sleeve can isolate the corresponding tubular ceramic membrane when it moves downward;

[0009] A cleaning component is used to clean the isolated tubular ceramic membrane. The cleaning component includes an air inlet groove provided in the movable sleeve, and an annular groove is provided at the bottom of the air inlet groove. A plurality of jet holes communicating with the cleaning chamber are provided on the side wall of the annular groove. A reciprocating screw is rotatably installed in the cleaning chamber, and a steel knife is threadedly installed on the reciprocating screw. The steel knife is used to clean the outside of the tubular ceramic membrane, and a plurality of guide vanes are fixedly installed on the steel knife. The guide vanes are used to guide and divert the airflow ejected from the jet holes.

[0010] Furthermore, a feed pipe is fixedly mounted on the bottom cover, a discharge pipe is fixedly mounted on the side wall of the machine body, an extraction pipe is mounted on the top cover, and a slag discharge pipe is also connected to the side wall of the machine body.

[0011] Furthermore, the lifting assembly consists of a mounting frame, a connecting block, a servo motor and a screw rod. The mounting frame is fixedly mounted on the top cover, the connecting block is fixedly mounted on the side wall of the movable sleeve, the servo motor is fixedly mounted on the mounting frame, the screw rod is fixedly connected to the output end of the servo motor, and the screw rod is threadedly connected to the connecting block.

[0012] Furthermore, a pressure pump is fixedly installed on the top of the movable sleeve, and the output end of the pressure pump is connected to the air inlet groove. A rotating rod is rotatably installed in the air inlet groove, and fan blades are fixedly installed on the rotating rod. A chain transmission structure is installed between the rotating rod and the reciprocating screw.

[0013] Furthermore, a fixed gear ring is fixedly installed on the side wall of the top cover, a fixed plate is fixedly installed on the side wall of the body, and a drive motor is fixedly installed on the fixed plate. The output end of the drive motor is fixedly connected to a drive gear through a fixed rod, and the drive gear is meshed with the fixed gear ring.

[0014] Furthermore, a sealing sleeve is sealingly and slidingly installed on the bottom cover, and the sealing sleeve moves upward to divide the bottom cover into a feed chamber and an isolation chamber, the isolation chamber corresponds to the position of the movable sleeve, and a sewage pipe is fixedly installed on the top of the sealing sleeve.

[0015] Furthermore, a fixing block is fixedly installed on the side wall of the sealing sleeve, a mounting block is fixedly installed on the side wall of the machine body, and a screw threadedly connected to the fixing block is rotatably installed on the mounting block.

[0016] Furthermore, a fixed gear is fixedly installed on the top of the screw, and a plurality of arc-shaped racks matching the fixed gear are fixedly installed on the side wall of the body, and the number of the arc-shaped racks is the same as the number of tubular ceramic membranes, and a torsion spring is installed between the fixed gear and the mounting block.

[0017] Compared with the existing technology, the advantages of the present invention are:

[0018] 1: Through the cooperation of the movable movable sleeve and the sealing sleeve, the tubular ceramic membrane at the corresponding position can be isolated from the overall equipment, so that the tubular ceramic membrane can be cleaned separately. Therefore, there is no need to stop the overall equipment during cleaning, which can effectively ensure the overall sewage treatment efficiency.

[0019] 2: Through the bottom cover and top cover that are sealed and rotated with the machine body, multiple tubular ceramic membranes can be isolated and cleaned in sequence according to a fixed cycle, thereby effectively ensuring the overall sewage treatment effect of the equipment.

[0020] 3: Through the cooperation of steel knives, guide plates and multiple air jet holes, the impurities on the outer surface of the isolated tubular ceramic membrane can be scraped and blown off. At the same time, high pressure is used to blow away the impurities attached to the inner membrane of the tubular ceramic membrane, effectively ensuring the cleaning effect of the tubular ceramic membrane.

[0021] To sum up, the present invention can regularly isolate and clean multiple tubular ceramic membranes, while ensuring the cleaning effect of the outer surface and inner membrane of the tubular ceramic membrane, and the cleaning process will not conflict with the sewage treatment action, which can ensure the continuous operation of the equipment and ensure the long-term operation of the sewage treatment effect and overall treatment efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural schematic diagram of a ceramic membrane sewage treatment device with self-cleaning function proposed by the present invention;

[0023] Figure 2 for Figure 1 A top view of

[0024] Figure 3 for Figure 2 Schematic diagram of the structure of the AA surface;

[0025] Figure 4 for Figure 3 A schematic diagram of the structure of part a is enlarged;

[0026] Figure 5 for Figure 1 Schematic diagram of the structure of the mid-body;

[0027] Figure 6 for Figure 1 Schematic diagram of the structure at the midsole cover;

[0028] Figure 7 for Figure 1 Schematic diagram of the structure at the middle top cover;

[0029] Figure 8 for Figure 5 Structural diagram from another perspective;

[0030] Figure 9 for Figure 6 Structural diagram from another perspective;

[0031] Figure 10 for Figure 7 Structural diagram from another perspective;

[0032] Figure 11 for Figure 7 Schematic diagram of the internal structure;

[0033] Figure 12 for Figure 11 An enlarged schematic diagram of the structure at the middle steel knife.

[0034] In the figure: 1. Machine body; 2. Bottom cover; 3. Tubular ceramic membrane; 4. Top cover; 5. Feed pipe; 6. Discharge pipe; 7. Extraction pipe; 8. Slag discharge pipe; 9. Moving sleeve; 10. Cleaning chamber; 11. Air inlet groove; 12. Annular groove; 13. Jet hole; 14. Pressure pump; 15. Reciprocating screw; 16. Steel knife; 17. Guide vane; 18. Fan blade; 19. Chain drive structure; 20. Servo motor; 21. Screw; 22. Fixed gear ring; 23. Fixed plate; 24. Drive motor; 25. Drive gear; 26. Sealing sleeve; 27. Drain pipe; 28. Fixed block; 29. ​​Mounting block; 30. Screw; 31. Fixed gear; 32. Arc rack; 33. Torsion spring. DETAILED DESCRIPTION

[0035] Reference Figure 1 , a ceramic membrane sewage treatment equipment with a self-cleaning function, including a body 1, on which a plurality of tubular ceramic membranes 3 are fixedly mounted, a plurality of through holes with the same outer diameter as the tubular ceramic membranes 3 are provided at the bottom of the body 1, and a sealing ring is provided between the through holes and the tubular ceramic membranes 3, and after the tubular ceramic membranes 3 are installed in the body 1, the top of the tubular ceramic membranes 3 is in contact with the bottom surface of the top cover 4, and at the same time, the top cover 4 is provided with a plurality of circular holes that match the tops of the tubular ceramic membranes 3, and the diameters of the circular holes are smaller than the outer diameters of the tubular ceramic membranes 3, and a fixing ring is fixedly provided at the bottom of the tubular ceramic membranes 3, and the outer diameter of the fixing ring is larger than the diameter of the through holes. When installing the tubular ceramic membranes 3, the fixing ring can be fixed to the bottom of the body 1 with bolts, which are not marked in the figure and the bolts are not shown in the figure;

[0036] A top cover 4 is rotatably installed on the top of the body 1, and a bottom cover 2 is installed on the bottom of the body 1, and the top cover 4 and the bottom cover 2 are fixedly connected by a U-shaped rod. The U-shaped rod is designed to enable the body 1 to rotate between the bottom cover 2 and the top cover 4, so that the angles of multiple tubular ceramic membranes 3 relative to the top cover 4 and the bottom cover 2 can be switched. The U-shaped rod is not shown in the figure. It is a common connecting component. Multiple brackets are fixedly installed on the side wall of the body 1. The brackets are used to support the equipment and keep it stably placed. The brackets are also not shown in the figure. The top cover 4 and the bottom cover 2 are all sealed and rotatably connected to the body 1, which can ensure the overall sealing effect of the equipment while maintaining rotation.

[0037] A feed pipe 5 is fixedly installed on the bottom cover 2, and the feed pipe 5 cooperates with the delivery pump to pump the wastewater to be treated into the bottom cover 2. After that, the wastewater can enter the bottom of multiple tubular ceramic membranes 3 for filtration treatment. A discharge pipe 6 is fixedly installed on the side wall of the body 1, and the discharge pipe 6 is used to discharge the filtered filtrate from the body 1. An extraction pipe 7 is installed on the top cover 4, and the extraction pipe 7 and the extraction pump cooperate to extract the concentrated liquid remaining in the tubular ceramic membrane 3 to the outside of the body 1 for separation. The cooperation between the feed pipe 5 and the delivery pump, and the cooperation between the extraction pipe 7 and the extraction pump are both existing technologies, and their working principles and specific structures are not explained here. The delivery pump and the extraction pump are both existing products, which are not shown in the figure. A slag discharge pipe 8 is also connected to the side wall of the body 1. The slag discharge pipe 8 is used to discharge the scale scraped from the side wall of the tubular ceramic membrane 3 from the body 1, and the slag discharge pipe 8 can also cooperate with the existing extraction pump.

[0038] Reference Figures 1-12 , a ceramic membrane sewage treatment equipment with self-cleaning function, further comprising a movable sleeve 9, which is slidably mounted on the top cover 4 by a lifting assembly, and a cleaning cavity 10 is provided on the movable sleeve 9 to match the tubular ceramic membrane 3. The bottom of the movable sleeve 9 is provided with a positioning hole that matches the tubular ceramic membrane 3, the diameter of the positioning hole is equal to the outer diameter of the tubular ceramic membrane 3, a partition is fixedly installed in the top cover 4, and the partition divides the top cover 4 into an extraction cavity and a cavity, which cooperates with the movable sleeve 9. When the movable sleeve 9 moves down and the bottom contacts the bottom of the inner wall of the body 1, the movable sleeve 9 separates the tubular ceramic membrane 3 therein from other tubular ceramic membranes 3. At this time, the tubular ceramic membrane 3 therein does not participate in the filtration treatment of the wastewater, while the other tubular ceramic membranes 3 can continue to filter the wastewater. Therefore, the tubular ceramic membrane 3 can be cleaned without stopping the treatment of the wastewater, thereby effectively ensuring the overall treatment efficiency.

[0039] The lifting assembly consists of a mounting frame, a connecting block, a servo motor 20 and a screw rod 21. The mounting frame is fixedly mounted on the top cover 4, the connecting block is fixedly mounted on the side wall of the movable sleeve 9, the servo motor 20 is fixedly mounted on the mounting frame, the screw rod 21 is fixedly connected to the output end of the servo motor 20, and the screw rod 21 is threadedly connected to the connecting block. The servo motor 20 can specifically adopt a servo motor of model 130ST-M05025LFB. When the servo motor 20 is working, the rotation of the screw rod 21 can drive the movable sleeve 9 to move up and down relative to the top cover 4, so that the position of the movable sleeve 9 in the body 1 can be adjusted to achieve isolation or release of the corresponding tubular ceramic membrane 3. The setting of the mounting frame is the existing technology, which is not shown in the figure. The servo motor 20 and the connecting block are designed to be separated from each other.

[0040] A fixed gear ring 22 is fixedly mounted on the side wall of the top cover 4, a fixed plate 23 is fixedly mounted on the side wall of the body 1, and a drive motor 24 is fixedly mounted on the fixed plate 23. The output end of the drive motor 24 is fixedly connected to a drive gear 25 through a fixed rod, and the drive gear 25 is meshed with the fixed gear ring 22. The drive motor 24 can specifically adopt a motor that can only rotate in one direction commonly used in daily life and work. When the drive motor 24 is working, the engagement of the drive gear 25 with the fixed gear ring 22 can make the top cover 4 and the bottom cover 2 rotate relative to the body 1 at the same time, so that the position of the multiple tubular ceramic membranes 3 relative to the movable sleeve 9 can be controlled. By limiting the working time and interval time of each drive motor 24 and limiting the transmission ratio of the drive gear 25 and the fixed gear ring 22, the upper and lower corresponding relationship between the multiple tubular ceramic membranes 3 and the movable sleeve 9 can be switched after each drive motor 24 works, thereby facilitating the isolation and cleaning of the multiple tubular ceramic membranes 3 in sequence, ensuring the overall cleaning effect of the equipment and ensuring its long-term filtering effect.

[0041] A sealing sleeve 26 is sealingly and slidingly installed on the bottom cover 2. The sealing sleeve 26 moves upward to divide the bottom cover 2 into a feed chamber and an isolation chamber. The isolation chamber corresponds to the position of the movable sleeve 9. A sewage pipe 27 is fixedly installed on the top of the sealing sleeve 26. When the movable sleeve 9 is used to isolate the corresponding tubular ceramic membrane 3, the sealing sleeve 26 moves upward at the same time and contacts the bottom of the body 1. At this time, with the cooperation of the movable sleeve 9 and the sealing sleeve 26, the tubular ceramic membrane 3 located in the movable sleeve 9 is separated from the wastewater and the filtrate as a whole, thereby effectively ensuring that the cleaning treatment of the tubular ceramic membrane 3 will not affect the overall wastewater treatment and the treatment effect.

[0042] A fixing block 28 is fixedly mounted on the side wall of the sealing sleeve 26, a mounting block 29 is fixedly mounted on the side wall of the body 1, and a screw 30 threadedly connected to the fixing block 28 is rotatably mounted on the mounting block 29. With the cooperation of the screw 30 and the fixing block 28, the position of the sealing sleeve 26 relative to the body 1 can be adjusted. A fixed gear 31 is fixedly mounted on the top of the screw 30, and a plurality of arc-shaped racks 32 that cooperate with the fixed gear 31 are fixedly mounted on the side wall of the body 1. The number of the arc-shaped racks 32 and the tubular ceramic membrane 3 is the same, and the fixed gear 31 is in contact with the mounting block 2 9 is provided with a torsion spring 33. With the cooperation of the arc-shaped rack 32 and the fixed gear 31, the screw 30 can be rotated intermittently at the same time when the top cover 4 rotates relative to the body 1. By limiting the transmission ratio of the arc-shaped rack 32 and the fixed gear 31, as well as limiting the arc length of the arc-shaped rack 32, when the movable sleeve 9 rotates to the position relative to the corresponding tubular ceramic membrane 3, the sealing sleeve 26 moves up at the same time and sticks to the bottom of the body 1. At this time, the position adjustment of the sealing sleeve 26 can be automatically realized. After that, it is only necessary to start the servo motor 20 to move the movable sleeve 9 to the position relative to the corresponding tubular ceramic membrane 3. The sleeve 9 can be moved down. When the cleaning process of one tubular ceramic membrane 3 is completed, the impurities inside the tubular ceramic membrane 3 can be discharged through the drain pipe 27. The movable sleeve 9 is first moved up and reset, and then the drive motor 24 is started to rotate the bottom cover 2 relative to the body 1 by a certain angle. When the bottom cover 2 rotates so that the cleaned tubular ceramic membrane 3 and the movable sleeve 9 are intertwined, the arc-shaped rack 32 is separated from the fixed gear 31. At this time, the elastic force of the torsion spring 33 can automatically reset the sealing sleeve 26, and the bottom cover 2 rotates so that the other tubular ceramic membrane 3 is not intertwined with the movable sleeve 9. The movable sleeve 9 stops when the position corresponds. At this time, multiple tubular ceramic membranes 3 can all participate in wastewater treatment. After that, the driving motor 24 is allowed to continue running at intervals to realize the cleaning treatment of multiple tubular ceramic membranes 3 in turn. In order to avoid a large twisting amplitude of the torsion spring 33, the fixed gear 31 can be separated from the screw 30, and another round rod can be fixed at the axis of the fixed gear 31. At the same time, a gear set is set between the round rod and the screw 30, so that each time the round rod rotates a smaller angle, it can drive the screw 30 to rotate a sufficient number of circles to adjust the position of the sealing sleeve 26.

[0043] The cleaning component is used to clean the isolated tubular ceramic membrane 3. The cleaning component includes an air inlet groove 11 provided in the movable sleeve 9, and an annular groove 12 is provided at the bottom of the air inlet groove 11. A plurality of air jet holes 13 communicating with the cleaning chamber 10 are provided on the side wall of the annular groove 12. A pressure pump 14 is fixedly installed on the top of the movable sleeve 9, and the output end of the pressure pump 14 is communicated with the air inlet groove 11. The pressure pump 14 is an existing pump body that can output high-pressure airflow. Its working principle and specific structure are not described here. When the movable sleeve 9 and the sealing After the sleeves 26 cooperate with each other to achieve overall isolation of the tubular ceramic membrane 3, the pressure pump 14 starts to run, and high-pressure airflow can be sprayed from multiple jet holes 13 to the outside of the tubular ceramic membrane 3. The high-pressure airflow can be used to remove some impurities such as scale attached to the outer wall of the tubular ceramic membrane 3. At the same time, the impurities accumulated on the surface of the inner membrane can also be blown away under the action of the airflow. In addition, according to actual process requirements, the pressure pump 14 can also be used to input high-pressure water flow into the movable sleeve 9, and the high-pressure water flow can be used to clean the surface of the tubular ceramic membrane 3 and dredge the interior.

[0044] A reciprocating screw 15 is rotatably installed in the cleaning chamber 10, and a steel knife 16 is threadedly installed on the reciprocating screw 15. The steel knife 16 is used to clean the outside of the tubular ceramic membrane 3. A rotating rod is rotatably installed in the air inlet groove 11, and a fan blade 18 is fixedly installed on the rotating rod. A chain transmission structure 19 is installed between the rotating rod and the reciprocating screw 15. When high-pressure gas enters the air inlet groove 11, the airflow causes the fan blade 18 to rotate, and then the reciprocating screw 15 is driven to rotate under the action of the chain transmission structure 19, so that the steel knife 16 can move back and forth up and down in the cleaning chamber 10, thereby scraping off impurities on the outer wall of the tubular ceramic membrane 3, effectively improving the cleaning effect.

[0045] A plurality of guide plates 17 are fixedly mounted on the steel knife 16. The guide plates 17 are used to guide and divert the airflow ejected from the jet hole 13. The design of the guide plates 17 can guide the airflow ejected from the jet hole 13 corresponding to the position of the steel knife 16, so that the tubular ceramic membrane 3 can be flushed at an inclined angle. The impact force at different angles can further improve the effect of blowing off impurities. In order to ensure stable transmission between the reciprocating screw 15 and the steel knife 16, a bellows can be installed between the upper and lower surfaces of the steel knife 16 and the upper and lower ends of the cleaning chamber 10.

[0046] The basic principles, main features and advantages of the present invention are shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A ceramic membrane sewage treatment device with a self-cleaning function, comprising a body (1), a bottom cover (2) installed at the bottom of the body (1), a plurality of tubular ceramic membranes (3) fixedly installed on the body (1), a top cover (4) rotatably installed on the top of the body (1), and the top cover (4) and the bottom cover (2) are fixedly connected by a U-shaped rod, characterized in that: Also includes: A movable sleeve (9), wherein the movable sleeve (9) is slidably mounted on the top cover (4) via a lifting assembly, and a cleaning cavity (10) is provided on the movable sleeve (9) and matches the tubular ceramic membrane (3). A partition is fixedly mounted in the top cover (4), and the partition divides the top cover (4) into an extraction cavity and a cavity, wherein the cavity matches the movable sleeve (9), and the movable sleeve (9) can isolate the corresponding tubular ceramic membrane (3) by moving downward; A cleaning component is used to clean the isolated tubular ceramic membrane (3), and the cleaning component includes an air inlet groove (11) provided in the movable sleeve (9), and an annular groove (12) is provided at the bottom of the air inlet groove (11), and a plurality of air jet holes (13) communicating with the cleaning chamber (10) are provided on the side wall of the annular groove (12), a reciprocating screw (15) is rotatably installed in the cleaning chamber (10), and a steel knife (16) is threadedly installed on the reciprocating screw (15), the steel knife (16) is used to clean the outside of the tubular ceramic membrane (3), and a plurality of guide plates (17) are fixedly installed on the steel knife (16), and the guide plates (17) are used to guide and divert the airflow ejected from the air jet holes (13).

2. The ceramic membrane sewage treatment equipment with self-cleaning function according to claim 1 is characterized in that: A feed pipe (5) is fixedly mounted on the bottom cover (2), a discharge pipe (6) is fixedly mounted on the side wall of the machine body (1), an extraction pipe (7) is mounted on the top cover (4), and a slag discharge pipe (8) is also connected to the side wall of the machine body (1).

3. The ceramic membrane sewage treatment equipment with self-cleaning function according to claim 1 is characterized in that: The lifting assembly consists of a mounting frame, a connecting block, a servo motor (20) and a screw rod (21); the mounting frame is fixedly mounted on the top cover (4); the connecting block is fixedly mounted on the side wall of the movable sleeve (9); the servo motor (20) is fixedly mounted on the mounting frame; the screw rod (21) is fixedly connected to the output end of the servo motor (20), and the screw rod (21) is threadedly connected to the connecting block.

4. The ceramic membrane sewage treatment equipment with self-cleaning function according to claim 1 is characterized in that: A pressure pump (14) is fixedly installed on the top of the movable sleeve (9), and the output end of the pressure pump (14) is communicated with the air inlet groove (11). A rotating rod is rotatably installed in the air inlet groove (11), and a fan blade (18) is fixedly installed on the rotating rod. A chain transmission structure (19) is installed between the rotating rod and the reciprocating screw (15).

5. The ceramic membrane sewage treatment equipment with self-cleaning function according to claim 1 is characterized in that: A fixed gear ring (22) is fixedly mounted on the side wall of the top cover (4), a fixed plate (23) is fixedly mounted on the side wall of the machine body (1), and a drive motor (24) is fixedly mounted on the fixed plate (23), an output end of the drive motor (24) is fixedly connected to a drive gear (25) via a fixed rod, and the drive gear (25) is meshed with the fixed gear ring (22).

6. The ceramic membrane sewage treatment equipment with self-cleaning function according to claim 5, characterized in that: A sealing sleeve (26) is sealingly and slidingly mounted on the bottom cover (2). When the sealing sleeve (26) moves upward, the bottom cover (2) is divided into a feed chamber and an isolation chamber. The isolation chamber corresponds to the position of the movable sleeve (9). A sewage pipe (27) is fixedly mounted on the top of the sealing sleeve (26).

7. The ceramic membrane sewage treatment equipment with self-cleaning function according to claim 6, characterized in that: A fixing block (28) is fixedly mounted on the side wall of the sealing sleeve (26), a mounting block (29) is fixedly mounted on the side wall of the machine body (1), and a screw (30) threadedly connected to the fixing block (28) is rotatably mounted on the mounting block (29).

8. The ceramic membrane sewage treatment equipment with self-cleaning function according to claim 7, characterized in that: A fixed gear (31) is fixedly installed on the top of the screw (30), and a plurality of arc-shaped racks (32) matched with the fixed gear (31) are fixedly installed on the side wall of the body (1), and the number of the arc-shaped racks (32) is the same as the number of the tubular ceramic membranes (3), and a torsion spring (33) is installed between the fixed gear (31) and the mounting block (29).

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