Intelligent micron bubble water purification and monitoring method

Abstract

The invention discloses an intelligent micron bubble water purification and monitoring method, and relates to the technical field of water treatment equipment. The device comprises a treatment shell, a micron bubble generator is mounted on one side of the treatment shell, a spray head is mounted on one side of the micron bubble generator, and a water quality sensor is mounted in the treatment shell; a filtering assembly is arranged on one side of the treatment shell and comprises a supporting shell mounted at the top of the treatment shell. By optimizing the structural design, the problem of detection distortion caused by the fact that scum covers the water quality sensor is effectively solved, dirt is prevented from falling back through the interception effect of the conical filter cartridge, the filter cartridge can be lifted to the position above the water surface through the moving assembly to be cleaned, the situation that work of the sensor is affected by dirt accumulation is avoided, and the water quality sensor is located in the treatment shell. The device is simple in structure and far away from a scum layer, accurate monitoring of key indexes such as COD and turbidity is guaranteed, stable movement of the filter cartridge is guaranteed through cooperation of the guide rail ring and the guide groove, the risk that the sensor is interfered is reduced, and monitoring data are more reliable.

Description

Technical Field

[0001] The present invention belongs to the technical field of water treatment equipment, and in particular relates to an intelligent micron bubble water purification and monitoring method. Background Art

[0002] Smart micron bubble water purification technology is a new, highly efficient and environmentally friendly water treatment method. Its core principle is to generate microbubbles with diameters of only 1-100 microns through high-pressure dissolved air. These bubbles have strong adsorption properties and slow oxygen release. When the bubbles come into contact with pollutants, they decompose organic matter, heavy metals, and microorganisms through multiple processes including physical adsorption, redox, and biodegradation. Compared to traditional filtration technologies, this system requires no chemicals, reduces energy consumption by over 40%, and can recycle wastewater. Applications include household water purification, industrial wastewater treatment, and agricultural irrigation. Combining water conservation and emission reduction with improved water quality, it represents a significant innovation in the smart water sector.

[0003] When current micron bubble water purification equipment treats wastewater, microbubbles (1-100 microns in diameter) come into full contact with pollutants, using their strong adsorption properties to encapsulate them. The gas released from the bubbles forms air chambers within some of the pollutants. This process reduces the density of pollutants, causing them to float on the water surface and form a scum layer. However, this floating scum can cover the water quality sensor probe, blocking the light path (optical sensors) or interfering with electrochemical signals (electrode sensors), leading to distorted test values ​​for key indicators such as COD and turbidity.

[0004] To this end, we provide an intelligent micron bubble water purification and monitoring method to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an intelligent micron bubble water purification and monitoring method. Through the cooperation of a filtering component, a moving component and a cleaning component, the present invention solves the problem that when the micron bubble water purification equipment in the prior art treats wastewater, when the bubbles fully contact with the pollutants, there will be a certain amount of gas inside the pollutants, causing the pollutants to float on the water surface, which will affect the normal detection of the water quality sensor.

[0006] To solve the above technical problems, the present invention is implemented through the following technical solutions.

[0007] The present invention provides an intelligent micron bubble water purification and monitoring method, which includes a processing shell, a micron bubble generator is installed on one side of the processing shell, a nozzle is installed on one side of the micron bubble generator, and a water quality sensor is installed inside the processing shell; a filter assembly is provided on one side of the processing shell, the filter assembly includes a supporting shell installed on the top of the processing shell, a conical filter cartridge slidably connected to the inside of the supporting shell, and a fixing ring installed on the surface of the conical filter cartridge, so that the dirt mixed with the bubbles is filtered by the filter assembly; a moving assembly is provided inside the supporting shell, the moving assembly includes a moving plate provided on the top of the supporting shell, a rotating tube movably connected to the inside of the moving plate, and a guide block installed at the bottom of the rotating tube, and the conical filter cartridge is driven upward by the moving assembly; a cleaning assembly is provided inside the supporting shell, the cleaning assembly includes a circular ring provided on the top of the conical filter cartridge, a scraper installed on one side of the circular ring, and a pressurized nozzle connected to the bottom of the rotating tube, so that the dirt on the surface of the conical filter cartridge is cleaned by the cleaning assembly.

[0008] The present invention is further configured such that the moving assembly also includes a drive shell installed on one side of the processing shell, a drive motor installed inside the drive shell, a screw installed at the output end of the drive motor, and a moving sleeve threadedly connected to the surface of the screw.

[0009] The present invention is further configured such that one side of the movable sleeve penetrates to the outside of the driving shell and is fixedly connected to the movable plate, and a sliding groove is provided on one side of the driving shell.

[0010] The present invention is further configured such that a servo motor is installed inside the movable plate, an output end of the servo motor is fixedly connected to a first gear, and a surface of the rotating tube is fixedly connected to a second gear.

[0011] The present invention is further configured such that one side of the first gear is meshed with the second gear, and the surface of the rotating tube is movably connected to the inner wall of the movable plate via a first bearing.

[0012] The present invention is further configured such that a disc is fixedly connected to the surface of the rotating tube, a vertical rod is slidably connected to the inside of the disc, and the bottom of the vertical rod is fixedly connected to a fixing ring.

[0013] The present invention is further configured such that a guide rail ring is movably connected inside the fixed ring, and the bottom of the guide rail ring is fixedly connected to the conical filter cartridge.

[0014] The present invention is further configured such that the cleaning assembly also includes a water tank installed on the top of the movable plate, a pressure pump connected to one side of the water tank, a delivery pipe connected to the water outlet of the pressure pump, the other end of the delivery pipe is connected to the rotating pipe, and the surface of the rotating pipe is movably connected to the inner wall of the delivery pipe through a second bearing.

[0015] The present invention is further configured such that a collecting shell is fixedly connected to the surface of the supporting shell, a sewage pipe is connected to one side of the collecting shell, and a drainage pipe is connected to the bottom of the processing shell.

[0016] The intelligent micron bubble water purification monitoring method includes the following steps:

[0017] S1: The staff transports the wastewater to be filtered into the support shell and the treatment shell, and makes the water level of the wastewater higher than the conical filter cartridge. At this time, the micron bubble generator is started. The micron bubble generator and the nozzle work together to dissolve high-pressure air in the water to form microbubbles with a diameter of 1-100 microns. The microbubbles can effectively encapsulate pollutants such as suspended matter, grease and heavy metals due to their high specific surface area and strong adsorption capacity. At the same time, the hydroxyl free radicals released when the bubbles burst can oxidize and decompose organic matter, and the internal gas release causes some pollutants to form air chambers and reduce their density, causing them to float and separate, achieving filtration and purification. The sewage filtration process is detected by the water quality sensor;

[0018] S2: When microbubbles are injected into the sewage, they drive the water upward. The water flow drives the dirt through the conical filter cartridge and floats on the water surface. At the same time, some dirt will be deposited again and filtered through the conical filter cartridge, preventing the dirt from falling back and affecting the normal detection of the water quality sensor.

[0019] S3: When there is a lot of dirt accumulated on the surface of the filter cartridge, the drive motor can be started. The drive motor cooperates with the screw to drive the movable sleeve to move, and the movable sleeve cooperates with the movable plate to drive the rotating tube to move. The rotating tube drives the guide block to move upward. The guide block size is larger than the inner diameter of the top opening of the conical filter cartridge. The conical filter cartridge can be lifted up to the top of the treatment shell, as shown in the figure. Then the servo motor is started. The servo motor cooperates with the rotating tube to drive the disc to rotate. The disc cooperates with the vertical rod to drive the fixed ring and the scraper to rotate. When the scraper rotates, it cleans the dirt on the surface of the conical filter cartridge and starts the pressure pump at the same time. The pressure pump draws out the water in the water tank, pressurizes it and injects it into the delivery pipe. The water is sprayed out through the rotating tube and the pressure nozzle to flush from the inside of the conical filter cartridge. The flushed dirt falls into the collection shell, which can improve the filtration efficiency of the wastewater.

[0020] The present invention has the following beneficial effects.

[0021] 1. This invention effectively solves the problem of detection distortion caused by scum covering the water quality sensor through optimized structural design. The interception effect of the conical filter cartridge prevents dirt from falling back, and the mobile assembly can lift the filter cartridge above the water surface for cleaning, preventing dirt accumulation from affecting the sensor operation. The water quality sensor is located inside the treatment shell, away from the scum layer, ensuring accurate monitoring of key indicators such as COD and turbidity. The combination of the guide ring and guide groove ensures stable movement of the filter cartridge, further reducing the risk of sensor interference and making the monitoring data more reliable.

[0022] 2. The present invention utilizes the synergistic effect of the micron bubble generator and the conical filter cartridge, and the high specific surface area and strong adsorption of micron bubbles to efficiently encapsulate pollutants such as suspended matter, grease, and heavy metals, and oxidize and decompose organic matter through the hydroxyl free radicals released by the bubble burst. The design of the conical filter cartridge not only increases the filtration area, but also effectively intercepts floating dirt to prevent it from falling back and affecting water quality. The automated design of the moving component and the cleaning component realizes the lifting, rotation and high-pressure flushing functions of the conical filter cartridge, avoiding the tedious manual cleaning in traditional equipment, greatly improving purification efficiency and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments.

[0024] Figure 1 A three-dimensional diagram of the intelligent micron bubble water purification and monitoring method.

[0025] Figure 2 This is a cross-sectional view of the drive housing in the intelligent micron bubble water purification and monitoring method.

[0026] Figure 3 This is a cross-sectional view of a processing shell and a supporting shell in the intelligent micron bubble water purification and monitoring method.

[0027] Figure 4 This is a cross-sectional view of a moving plate and a delivery pipe in the intelligent micron bubble water purification and monitoring method.

[0028] Figure 5 This is a cross-sectional view of a conical filter cartridge in the intelligent micron bubble water purification and monitoring method.

[0029] Figure 6 It is a cross-sectional view of the ring in the intelligent micron bubble water purification and monitoring method.

[0030] Figure 7 Schematic diagram of cleaning the conical filter cartridge in the intelligent micron bubble water purification and monitoring method.

[0031] In the attached figure: 1. treatment shell; 2. micron bubble generator; 3. nozzle; 4. water quality sensor; 5. support shell; 6. conical filter cartridge; 7. fixed ring; 8. movable plate; 9. rotating tube; 10. guide block; 11. circular ring; 12. scraper; 13. pressurized nozzle; 14. drive shell; 15. drive motor; 16. screw; 17. movable sleeve; 18. slide; 19. servo motor; 20. first gear; 21. second gear; 22. disc; 23. vertical rod; 24. guide ring; 25. water tank; 26. pressure pump; 27. delivery pipe; 28. collection shell; 29. ​​sewage pipe; 30. drainage pipe. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] Example 1

[0034] See also Figure 1-Figure 7 The present invention provides an intelligent micron bubble water purification and monitoring method, which includes a processing shell 1, a micron bubble generator 2 is installed on one side of the processing shell 1, a nozzle 3 is installed on one side of the micron bubble generator 2, and a water quality sensor 4 is installed inside the processing shell 1; a filtering assembly is provided on one side of the processing shell 1, the filtering assembly includes a supporting shell 5 installed on the top of the processing shell 1, a conical filter cartridge 6 slidably connected to the inside of the supporting shell 5, and a fixing ring 7 installed on the surface of the conical filter cartridge 6, and the impurities mixed with the bubbles are filtered by the filtering assembly; a moving assembly is provided inside the supporting shell 5, the moving assembly includes a moving plate 8 provided on the top of the supporting shell 5, a rotating tube 9 movably connected to the inside of the moving plate 8, and a guide block 10 installed at the bottom of the rotating tube 9, and the conical filter cartridge 6 is driven to move upward by the moving assembly; a cleaning assembly is provided inside the supporting shell 5, the cleaning assembly includes a circular ring 11 provided on the top of the conical filter cartridge 6, a scraper 12 installed on one side of the circular ring 11, and a pressurized nozzle 13 connected to the bottom of the rotating tube 9, and the impurities on the surface of the conical filter cartridge 6 are cleaned by the cleaning assembly.

[0035] Specifically: The micron bubble generator 2 dissolves high-pressure air in water through the nozzle 3 to generate microbubbles with a diameter of 1-100 microns. These microbubbles have a high specific surface area and strong adsorption properties, and can efficiently wrap pollutants such as suspended matter, oil and heavy metals in the water. The hydroxyl radicals released when the bubbles burst can oxidize and decompose organic matter. At the same time, the internal gas release reduces the density of pollutants and floats up and separates, thereby achieving efficient water purification. The water quality sensor 4 is installed inside the treatment shell 1 to monitor the sewage filtration process in real time to ensure the accuracy of key indicators such as COD, turbidity and other data. The conical filter cartridge 6 is slidably connected to the inside of the support shell 5, which can effectively filter the floating dirt and prevent it from falling back to affect the detection of the water quality sensor 4. The conical design increases the filtration area and improves the filtration efficiency.

[0036] Example 2

[0037] See also Figure 1-Figure 7On the basis of Example 1, the moving assembly also includes a driving shell 14 installed on one side of the processing shell 1, a driving motor 15 installed inside the driving shell 14, a screw 16 installed on the output end of the driving motor 15, and a moving sleeve 17 threadedly connected to the surface of the screw 16. One side of the moving sleeve 17 passes through the outside of the driving shell 14 and is fixedly connected to the moving plate 8. A slide groove 18 is provided on one side of the driving shell 14. A servo motor 19 is installed inside the moving plate 8. The output end of the servo motor 19 is fixedly connected to a first gear 20. A second gear 21 is fixedly connected to the surface of the rotating tube 9. One side of the first gear 20 is meshed with the second gear 21. The surface of the rotating tube 9 is movably connected to the inner wall of the moving plate 8 through a first bearing.

[0038] Specifically: the driving motor 15 drives the screw 16 to rotate, so that the movable sleeve 17 moves along the screw 16, and then drives the rotating tube 9 and the guide block 10 to move up and down through the movable plate 8. This design realizes the automatic lifting function of the conical filter cartridge 6, which is convenient for subsequent cleaning operations. The guide block 10 at the bottom of the rotating tube 9 is larger than the inner diameter of the top opening of the conical filter cartridge 6, and can bring the conical filter cartridge 6 to the top of the processing shell 1 during the lifting process. The vertical rod 23 slidingly connected inside the disc 22 is fixed to the fixed ring 7, and can drive the scraper 12 to rotate during the rotation process to clean the dirt on the surface of the conical filter cartridge 6. The guide ring 24 is movably connected to the inside of the fixed ring 7 to ensure that the conical filter cartridge 6 remains stable during movement and rotation to avoid offset or jamming.

[0039] Example 3

[0040] See also Figure 1-Figure 7 On the basis of Examples 1 and 2, a disc 22 is fixedly connected to the surface of the rotating tube 9, a vertical rod 23 is slidably connected inside the disc 22, the bottom of the vertical rod 23 is fixedly connected to the fixed ring 7, a guide ring 24 is movably connected inside the fixed ring 7, and the bottom of the guide ring 24 is fixedly connected to the conical filter cartridge 6. The cleaning assembly also includes a water tank 25 installed on the top of the movable plate 8, a pressure pump 26 connected to one side of the water tank 25, and a delivery pipe 27 connected to the water outlet of the pressure pump 26. The other end of the delivery pipe 27 is connected to the rotating tube 9, and the surface of the rotating tube 9 is movably connected to the inner wall of the delivery pipe 27 through a second bearing. A collecting shell 28 is fixedly connected to the surface of the supporting shell 5, and a sewage pipe 29 is connected to one side of the collecting shell 28. The bottom of the processing shell 1 is connected to a drain pipe 30.

[0041] Specifically: the water tank 25 pressurizes the water through the pressure pump 26 and injects it into the rotating tube 9 through the delivery pipe 27, and finally sprays it out from the pressure nozzle 13 to flush from the inside of the conical filter cartridge 6. This design realizes efficient cleaning of the filter cartridge. The dirt after flushing falls into the collection shell 28, further improving the water purification efficiency. The collection shell 28 is fixed to the surface of the support shell 5 and is used to collect dirt that falls off during the cleaning process. The drain pipe 29 facilitates the centralized discharge of dirt, maintaining the cleanliness and operation efficiency of the equipment. The drain pipe 30 at the bottom of the treatment shell 1 is used to discharge the purified water. Sliders are fixedly connected on both sides of the fixing ring 7. A guide groove is provided inside the support shell 5. The slider slides with the inner wall of the guide groove, so that the conical filter cartridge 6 can only move vertically, limiting the rotation of the conical filter cartridge 6.

[0042] The working principle of the present invention is as follows: the staff transports the wastewater to be filtered into the support shell 5 and the treatment shell 1, and makes the water level of the wastewater higher than the conical filter cartridge 6. At this time, the micron bubble generator 2 is started. The micron bubble generator 2 cooperates with the nozzle 3 to dissolve high-pressure air in the water to form microbubbles with a diameter of 1-100 microns. The microbubbles can efficiently encapsulate pollutants such as suspended matter, grease and heavy metals due to their high specific surface area and strong adsorption properties. At the same time, the hydroxyl radicals released when the bubbles burst can oxidize and decompose organic matter, and the internal gas release causes some pollutants to form air chambers and reduce their density, prompting them to float and separate, achieving filtration and purification. The filtration process of the sewage is detected by the water quality sensor 4.

[0043] When microbubbles are filled into the sewage, the water will flow upward. After the water flow drives the dirt through the conical filter cartridge 6, it will float on the water surface. At the same time, some of the dirt will be deposited again and can be filtered through the conical filter cartridge 6 to prevent the dirt from falling back again and affecting the normal detection of the water quality sensor 4.

[0044] When a lot of dirt accumulates on the surface of the filter cartridge, the drive motor 15 can be started. The drive motor 15 cooperates with the screw 16 to drive the movable sleeve 17 to move. The movable sleeve 17 cooperates with the movable plate 8 to drive the rotating tube 9 to move. The rotating tube 9 drives the guide block 10 to move upward. The guide block 10 is larger than the inner diameter of the top opening of the conical filter cartridge 6. The conical filter cartridge 6 can be lifted to the top of the processing shell 1, as shown in the figure. Then the servo motor 19 is started. The servo motor 19 cooperates with the rotating tube 9 to drive the disc 22 to rotate. The disc 22 cooperates with the vertical rod 23 to drive the fixing ring 7 and the scraper 12 to rotate. When the scraper 12 rotates, the dirt on the surface of the conical filter cartridge 6 is cleaned. At the same time, the pressure pump 26 is started. The pressure pump 26 draws water from the water tank 25, pressurizes it and injects it into the delivery pipe 27. The water is sprayed out through the rotating tube 9 and the pressure nozzle 13 to flush the inside of the conical filter cartridge 6. The flushed dirt falls into the collection shell 28, which can improve the filtration efficiency of the wastewater.

[0045] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the invention to only the specific implementation methods described. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can better understand and utilize the present invention.

Claims

1. An intelligent micron bubble water purification device, comprising a processing shell (1), characterized in that: A micron bubble generator (2) is installed on one side of the processing shell (1), a nozzle (3) is installed on one side of the micron bubble generator (2), and a water quality sensor (4) is installed inside the processing shell (1); A filter assembly is provided on one side of the processing shell (1), the filter assembly comprising a support shell (5) mounted on the top of the processing shell (1), a conical filter cartridge (6) slidably connected to the interior of the support shell (5), and a fixing ring (7) mounted on the surface of the conical filter cartridge (6), and the filter assembly is used to filter the impurities mixed with the bubbles; A moving assembly is provided inside the support shell (5), and the moving assembly includes a moving plate (8) provided on the top of the support shell (5), a rotating tube (9) movably connected to the inside of the moving plate (8), and a guide block (10) installed at the bottom of the rotating tube (9), and the conical filter cartridge (6) is driven to move upward by the moving assembly; A cleaning assembly is provided inside the support shell (5), and the cleaning assembly comprises a circular ring (11) provided on the top of the conical filter cartridge (6), a scraper (12) installed on one side of the circular ring (11), and a pressurized nozzle (13) connected to the bottom of the rotating tube (9). Dirt on the surface of the conical filter cartridge (6) is cleaned by the cleaning assembly.

2. The intelligent micron bubble water purification device according to claim 1, characterized in that: The moving assembly further comprises a driving shell (14) mounted on one side of the processing shell (1), a driving motor (15) mounted inside the driving shell (14), a screw (16) mounted on the output end of the driving motor (15), and a moving sleeve (17) threadedly connected to the surface of the screw (16).

3. The intelligent micron bubble water purification device according to claim 2, characterized in that: One side of the movable sleeve (17) passes through the outside of the driving housing (14) and is fixedly connected to the movable plate (8); one side of the driving housing (14) is provided with a sliding groove (18).

4. The intelligent micron bubble water purification device according to claim 1, characterized in that: A servo motor (19) is installed inside the movable plate (8), an output end of the servo motor (19) is fixedly connected to a first gear (20), and a surface of the rotating tube (9) is fixedly connected to a second gear (21).

5. The intelligent micron bubble water purification device according to claim 4, characterized in that: One side of the first gear (20) is meshed with the second gear (21), and the surface of the rotating tube (9) is movably connected to the inner wall of the movable plate (8) via a first bearing.

6. The intelligent micron bubble water purification device according to claim 1, characterized in that: A disc (22) is fixedly connected to the surface of the rotating tube (9), a vertical rod (23) is slidably connected inside the disc (22), and the bottom of the vertical rod (23) is fixedly connected to the fixing ring (7).

7. The intelligent micron bubble water purification device according to claim 1, characterized in that: A guide rail ring (24) is movably connected inside the fixed ring (7), and the bottom of the guide rail ring (24) is fixedly connected to the conical filter cartridge (6).

8. The intelligent micron bubble water purification device according to claim 1, characterized in that: The cleaning assembly further comprises a water tank (25) mounted on the top of the movable plate (8), a pressure pump (26) connected to one side of the water tank (25), and a delivery pipe (27) connected to the water outlet of the pressure pump (26); the other end of the delivery pipe (27) is connected to the rotating pipe (9); and the surface of the rotating pipe (9) is movably connected to the inner wall of the delivery pipe (27) via a second bearing.

9. The intelligent micron bubble water purification device according to claim 1, characterized in that: The surface of the support shell (5) is fixedly connected to a collecting shell (28), one side of the collecting shell (28) is connected to a sewage pipe (29), and the bottom of the processing shell (1) is connected to a drainage pipe (30).

10. An intelligent micron bubble water purification monitoring method, based on the intelligent micron bubble water purification device according to any one of claims 1 to 9, characterized in that: The following steps are included: S1: The staff transports the wastewater to be filtered into the support shell (5) and the treatment shell (1), and makes the water level of the wastewater higher than the conical filter cylinder (6). At this time, the micron bubble generator (2) is started. The micron bubble generator (2) cooperates with the nozzle (3) to dissolve high-pressure air in the water to form microbubbles with a diameter of 1-100 microns. The microbubbles can effectively wrap pollutants such as suspended matter, grease and heavy metals by virtue of their high specific surface area and strong adsorption. At the same time, the hydroxyl radicals released when the bubbles burst can oxidize and decompose organic matter, and the internal gas release causes some pollutants to form air chambers to reduce density, prompting them to float and separate, thereby achieving filtration and purification. The filtration process of the sewage is detected by the water quality sensor (4); S2: When microbubbles are filled into the sewage, the water flow is driven upwards. After the water flow drives the dirt through the conical filter cartridge (6), it floats on the water surface. At the same time, a part of the dirt will be deposited again and can be filtered by the conical filter cartridge (6), so as to prevent the dirt from falling back again and affecting the normal detection of the water quality sensor (4); S3: When the dirt accumulated on the surface of the filter cartridge is large, the drive motor (15) can be started, and the drive motor (15) cooperates with the screw (16) to drive the movable sleeve (17) to move, and the movable sleeve (17) cooperates with the movable plate (8) to drive the rotating tube (9) to move, and the rotating tube (9) drives the guide block (10) to move upward. The guide block (10) is larger than the inner diameter of the top opening of the conical filter cartridge (6), and the conical filter cartridge (6) can be lifted upward to the top of the processing shell (1), as shown in Figure 7. Then the servo motor (19) is started, and the servo motor (19) cooperates with the rotating plate (8) to drive the rotating tube (9) to move upward. The tube (9) drives the disc (22) to rotate, and the disc (22) cooperates with the vertical rod (23) to drive the fixed ring (7) and the scraper (12) to rotate. When the scraper (12) rotates, the dirt on the surface of the conical filter cylinder (6) is cleaned. At the same time, the pressure pump (26) is started. The pressure pump (26) extracts the water in the water tank (25), pressurizes it and injects it into the delivery pipe (27). The water is sprayed out through the rotating tube (9) and the pressure nozzle (13) to flush the inside of the conical filter cylinder (6). The flushed dirt falls into the collection shell (28), which can improve the filtering efficiency of the wastewater.

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