A sewage degradation treatment device containing organic matter

Abstract

The present application relates to sewage treatment related technical field, disclose a kind of sewage degradation treatment equipment containing organic matter, to solve the problem that suspended solids accumulate in filter screen, cause poor filtration, by containing organic matter sewage before being filtered, according to the rotation of decontamination tank, sewage is centrifuged and impurity, force the volume / weight of suspended solids in sewage to be intercepted first, so as to slow down the filtration pressure of subsequent filter cartridge, ultimately realize the effect of precentrifugal filtration.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a wastewater degradation treatment device containing organic matter. Background Technology

[0002] Wastewater degradation treatment is a comprehensive wastewater treatment technology that uses a combination of physical, chemical, and biological methods to remove or transform various pollutants in wastewater, aiming to ensure that the treated wastewater meets national discharge standards or reuse requirements in specific scenarios. This process encompasses multiple complex stages and mechanisms, achieving highly efficient wastewater purification through the synergistic effect of different methods.

[0003] Currently, a relatively mature system has been established for the treatment of organic matter in wastewater, mainly comprising four key stages: filter interception, microbial degradation, chemical treatment, and sludge disposal. Among these, the filter interception stage is the initial guarantee of the entire treatment process, employing multiple layers of filters to progressively filter the wastewater. This staged filtration effectively intercepts larger suspended solids in the wastewater, such as garbage and sludge. This process not only removes large particulate impurities but also provides preliminary regulation of the wastewater's quality and quantity, protecting the stable operation of subsequent treatment equipment and preventing wear or blockage caused by large particulate impurities.

[0004] However, some problems have also emerged in practical applications. When suspended solids in wastewater are directly filtered through a filter screen for deep filtration, a large amount of suspended solids quickly accumulate on the filter screen surface, causing a sharp increase in the burden on the filter screen. Over time, the filter screen becomes tightly blocked by suspended solids, significantly slowing down the flow rate of wastewater through the filter screen and resulting in poor water flow. This problem can seriously affect the filtration efficiency of wastewater, reduce the treatment capacity of the entire process, and may even cause subsequent treatment stages to malfunction. Summary of the Invention

[0005] This invention proposes a wastewater degradation treatment device containing organic matter, which has a pre-centrifugal filtration function, and can effectively solve the problem mentioned in the background art of suspended solids accumulating on the filter screen and causing poor filtration.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a wastewater degradation treatment device containing organic matter, comprising: a frame, on which a sludge removal box and a motor are mounted, and the motor drives the sludge removal box to rotate using a pulley assembly; an inlet pipe connected to a water pump is installed at the bottom of the sludge removal box, and wastewater transported through the inlet pipe enters the sludge removal box, where the sludge removal box rotates to achieve centrifugal filtration of suspended solids in the wastewater, and the filtered suspended solids are collected by a debris collection ring seat set on the outside of the sludge removal box; a cover seat is fixedly installed on the side of the frame using a bracket and movably installed with the sludge removal box, and a drain pipe is fixedly installed on the top of the cover seat; a filter cartridge is movably installed on the top of the inner side of the sludge removal box, and the wastewater after centrifugal filtration undergoes deep filtration through the filter cartridge and is discharged outward from the drain pipe.

[0007] Furthermore, a dispersing frame is installed inside the sludge removal box, and the dispersing frame is fitted into the bottom of the inner side of the sludge removal box using an elliptical collar.

[0008] Furthermore, a limiting rod that is pushed against the filter cylinder by a tension spring is movably installed at the bottom of the cover, and a limiting groove is opened on the top of the outer side of the filter cylinder, with an arc groove in the limiting groove corresponding to the end of the limiting rod.

[0009] Furthermore, a cleaning rack is provided on the top inner side of the cleaning box, which is slidably connected to the outer side of the filter cartridge.

[0010] Furthermore, the planetary gear assembly at the bottom of the cover enables the dirt removal box to drive the detection ring gear frame to rotate synchronously in opposite directions at a differential speed; the dirt removal frame has a detection piston that is pushed by a spring inside, a detection rod is fixedly installed at the end of the detection piston, and a drive rod that cooperates with the detection ring gear frame is installed at the end of the detection rod.

[0011] Furthermore, it was found that the outer side of the ring gear frame has multiple external teeth arranged at equal angles, and the tooth shape of the external teeth is approximately a right-angled triangle.

[0012] Furthermore, an adjusting piston is movably installed on the top of the outer side of the impurity removal frame, and the top of the adjusting piston is connected to the dispersing frame via a guide frame. A locking ring gear is fixedly installed at the bottom of the filter cartridge, and the dispersing frame can transmit torque after it abuts against the locking ring gear.

[0013] Furthermore, a detection switch is fixedly installed on the top of the inner side of the sludge removal box, located above the adjusting piston. The detection switch is electrically connected to the electromagnetic on / off valve fixed on the top of the drain pipe. The detection switch can be used to realize the instantaneous closing and delayed opening of the electromagnetic on / off valve.

[0014] Furthermore, a spring push rod is provided at the bottom of the outer side of the adjusting piston, and a circular hole corresponding to the spring push rod is opened on the inner side of the impurity removal frame; a reset push rod is fixed at the end of the detection piston, and when the reset push rod reaches the circular hole, the spring push rod disengages from the circular hole.

[0015] The present invention has the following beneficial effects:

[0016] In today's era of vigorously promoting the development of advanced environmental protection industries, water pollution control, as a key area of ​​environmental protection, places higher demands on the manufacturing of related specialized equipment. Under these circumstances, a wastewater treatment device specifically designed for the degradation of organic matter has been developed. When wastewater containing organic matter enters the treatment system, it first enters a sludge removal tank before flowing through the key filtration component, the filter cartridge. The sludge removal tank rotates at a specific speed. During this rotation, based on centrifugal force, the wastewater rotates within the tank. Larger, heavier suspended solids, due to the centrifugal force acting on them far exceeding the combined force of their buoyancy and the water flow, are rapidly thrown against the inner wall of the tank. Under the continuous action of centrifugal force, these suspended solids adhere tightly to the pre-set collection structure on the inner wall of the tank, thus being intercepted first.

[0017] This pre-centrifugal filtration method effectively removes a large number of large suspended particles in the wastewater before they enter the filter cartridges. This significantly reduces the filtration burden on subsequent filter cartridges, lowers the risk of clogging by large suspended particles, and substantially alleviates the filtration pressure on the cartridges. As a result, the filter cartridges can perform their filtration function more efficiently and stably, deeply purifying small particles and organic matter in the wastewater. Ultimately, this equipment achieves significant results from pre-centrifugal filtration, providing an efficient and reliable solution for the degradation and treatment of wastewater containing organic matter, and powerfully promoting technological progress and equipment upgrades in the field of water pollution control. Attached Figure Description

[0018] The accompanying drawings, which form part of this specification, illustrate embodiments of the invention and, together with the specification, serve to explain the principles of the invention.

[0019] The invention will be more clearly understood with reference to the accompanying drawings and the following detailed description, wherein:

[0020] Figure 1 This is a schematic diagram of the overall external front three-dimensional structure;

[0021] Figure 2 This is a schematic diagram of the overall external rear three-dimensional structure;

[0022] Figure 3 This is a schematic diagram of the overall internal planar sectional structure;

[0023] Figure 4 for Figure 3 Enlarged structural diagram of the area at point E in the middle;

[0024] Figure 5 This is a schematic diagram showing the location and three-dimensional structure of the internal components of the dirt removal box of the present invention;

[0025] Figure 6 This is a schematic diagram showing the position and three-dimensional structure of each component in the cover of the present invention.

[0026] In the diagram: 1. Frame; 2. Stain removal box; 201. Accumulation ring seat; 202. Water inlet pipe; 203. Sewage discharge pipe; 3. Cover seat; 4. Drain pipe; 5. Electromagnetic on / off valve; 6. Motor; 601. Pulley assembly; 7. Detection ring gear; 8. Detection rod; 801. Drive rod; 9. Dispersion frame; 10. Filter cartridge; 11. Planetary gear assembly; 12. Locking ring gear; 13. Detection piston; 131. Reset push rod; 132. Stain removal frame; 14. Limiting push rod; 15. Adjusting piston; 151. Spring push rod; 16. Detection switch. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1, please refer to Figures 1-3 It can be seen that the main body of the equipment is installed and supported primarily by the frame 1. The sludge removal box 2 is movably mounted on the middle surface of the frame 1 using bearings, thus enabling the sludge removal box 2 to rotate on the surface of the frame 1. Regarding the source of the driving force, from... Figure 3 As can be seen, a motor 6 is fixedly mounted on the surface of the frame 1, and the motor 6 and the bottom of the cleaning box 2 are driven by a pulley assembly 601. The pulley assembly 601 includes two pulleys and a belt. The two pulleys are respectively mounted on the bottom of the cleaning box 2 and the output shaft of the motor 6. The belt drive enables the motor 6 to drive the cleaning box 2 to rotate continuously.

[0029] The bottom of the sludge collection tank 2 is sealed with an inlet pipe 202 that connects to an external water pump. The pump pumps wastewater containing organic matter into the inlet pipe 202, which then flows into the inner cavity of the sludge collection tank 2. During this process, the motor 6 drives the sludge collection tank 2 to rotate. Therefore, after the wastewater enters the sludge collection tank 2, suspended solids are subjected to centrifugal force, which overcomes the combined force of their own buoyancy and the water flow, causing them to move towards the inner wall of the sludge collection tank 2. Figure 3 and Figure 5As shown, multiple sediment collection rings 201 are equidistantly installed on the outer side of the sediment removal tank 2. These rings temporarily store suspended solids, ensuring that heavy / volume suspended solids are pre-filtered by centrifugal filtration. To further enhance the separation of suspended solids, a dispersing frame 9 is movably installed inside the sediment removal tank 2. The dispersing frame 9 uses an elliptical collar to movably fit into the bottom inner side of the sediment removal tank 2. This ensures that the dispersing frame 9 can rotate with the sediment removal tank 2, and multiple equally angled baffles on the dispersing frame 9 drive the wastewater to rotate synchronously with the sediment removal tank 2, enhancing the centrifugal separation efficiency of suspended solids in the wastewater. Furthermore, the elliptical structure allows the dispersing frame 9 to reciprocate up and down along the central axis of the sediment removal tank 2.

[0030] Combination Figure 2 and Figure 3 It can be seen that the side of the frame 1 has a cover 3 that is fastened to the side by a bracket, and the cover 3 is sealed and movable above the sludge removal tank 2 to ensure that the internal sewage flow is not affected when the sludge removal tank 2 and the cover 3 rotate relative to each other. A filter cartridge 10 is movably installed on the top of the inner side of the sludge removal tank 2, and the top opening of the filter cartridge 10 is directly opposite the bottom of the cover 3. Correspondingly, a drain pipe 4 is fixedly installed on the top of the cover 3 and is coaxially aligned with the filter cartridge 10. The sewage in the sludge removal tank 2 that has undergone pre-centrifugal filtration will continue to flow upward and undergo secondary deep filtration through the filter cartridge 10. The filtered sewage will flow out through the drain pipe 4 and finally be transported to the next microbial degradation process through the drain pipe 4.

[0031] Finally, after the wastewater treatment is completed, the suspended solids filtered out by centrifugation in the sludge removal box 2 can be discharged outward by connecting the drain pipe 203 fixed at the bottom of the outer side of the frame 1.

[0032] In summary, as can be seen from the above, in the application of this embodiment, the motor 6, based on the pulley assembly 601, can drive the sludge removal tank 2 to rotate continuously and rapidly. When the water pump transports sewage from the inlet pipe 202 into the sludge removal tank 2, the sludge removal tank 2 drives the sewage to rotate, achieving pre-centrifugal filtration of suspended solids in the sewage. Subsequently, as the water flow continues to be transported upwards, the centrifugally filtered sewage undergoes deep filtration through the filter cartridge 10. Finally, the filtered sewage is discharged from the drain pipe 4 to the next process stage.

[0033] Example 2 is a further improvement on Example 1. Please refer to Example 1. Figures 3-5 It can be seen that a limiting rod 14, which is pushed against the filter cartridge 10 by a tension spring, is movably installed at the bottom of the cover 3, and a limiting groove is opened on the top outer side of the filter cartridge 10. By inserting the limiting rod 14 into the limiting groove, the axial movement of the filter cartridge 10 can be restricted, thereby facilitating the installation and removal of the filter cartridge 10. Figure 5It can be seen that multiple arc grooves arranged at equal angles are formed on the top outer side of the filter cartridge 10 and located in the limiting groove. The arc grooves correspond to the ends of the limiting rod 14. When the limiting rod 14 abuts against the arc grooves, the filter cartridge 10 will have a certain rotational resistance. In addition, a debris removal frame 132 is provided on the top inner side of the sludge removal box 2 and attached to the outer side of the filter cartridge 10. The end of the debris removal frame 132 is slidably connected to the filtration part on the outer side of the filter cartridge 10. In actual application, when the sludge removal box 2 drives the debris removal frame 132 to rotate, the debris removal frame 132 can scrape around the filtration part on the outer side of the filter cartridge 10, thereby scraping away the impurities blocking the outer side of the filter cartridge 10, and ultimately increasing the efficiency of sewage treatment.

[0034] Based on this, combined Figure 3 , Figure 4 and Figure 6 It can be seen that a planetary gear assembly 11 is provided at the bottom of the cover 3 to drive the detection ring gear 7 to rotate. The planetary gear assembly 11 includes a central gear, planetary gears, and external gears. The central gear is fixedly installed on the top outer side of the cleaning box 2, allowing it to rotate synchronously with the cleaning box 2. The planetary gears are movably installed at the bottom of the cover 3, and the external gear ring is movably installed at the bottom of the cover 3 and meshes with the planetary gears. Since the planetary gears are relatively fixed in position, when the cleaning box 2 drives the central gear to rotate, the external gear ring can rotate using planetary gear transmission. Combined with the fixed connection between the detection ring gear 7 and the external gear ring, the detection ring gear 7 ultimately rotates synchronously. More specifically, the outer side of the detection ring gear 7 is provided with multiple external teeth arranged at equal angles. The tooth shape of the external teeth is approximately a right-angled triangle. These external teeth can cooperate with the subsequent drive rod 801, thereby enabling the inclined surface of the external teeth to push the drive rod 801 to move away from the filter cartridge 10. Figures 3-6 It can be seen that a detection piston 13, which is pushed by a spring, is installed inside the impurity removal frame 132. The detection piston 13, pushed by the spring, always tends to move towards the filter cartridge 10. A detection rod 8 is fixedly installed at the end of the detection piston 13, and a drive rod 801 that engages with the external teeth on the detection ring gear 7 is installed at the end of the detection rod 8. The dirt removal box 2 can drive the detection piston 13 to rotate synchronously. When the drive rod 801 moves along the inclined surface of the external teeth, the drive rod 801 pulls the detection piston 13 away from the filter cartridge 10 through the detection rod 8. Similarly, when the drive rod 801 passes the external teeth, it will move towards the filter cartridge 10 under the push of the spring. At this time, due to the pressure of the detection piston 13 on the inner cavity of the impurity removal frame 132, the sewage in the impurity removal frame 132 will pass through the filtration part on the outside of the filter cartridge 10. If the outer part of the filter cartridge 10 is blocked, the pressure in the inner cavity of the impurity removal frame 132 will increase.

[0035] After that, from Figure 3 and Figure 4As can be seen, an adjusting piston 15 is movably mounted on the top of the outer side of the impurity removal frame 132, and the top of the adjusting piston 15 is connected to the dispersing frame 9 via a guide frame. Specifically, the guide frame is movably mounted on the outer side of the impurity removal frame 132, thus restricting the adjusting piston 15 and the guide frame to only move vertically up and down. The bottom of the guide frame is movably connected to the dispersing frame 9, so that when the movable frame moves upward, it can pull the dispersing frame 9 to move upward synchronously. Correspondingly, a locking annular toothed frame 12 is fixedly mounted on the bottom of the filter cartridge 10. When the dispersing frame 9 moves upward, it abuts against the outer teeth of the locking annular toothed frame 12, so that the dispersing frame 9 can be connected to the filter cartridge 10.

[0036] A detection switch 16 is fixedly installed on the top inner side of the dirt removal box 2, above the adjusting piston 15. The detection switch 16 is electrically connected to the electromagnetic on / off valve 5 fixed on the top of the drain pipe 4. The detection switch 16 enables the electromagnetic on / off valve 5 to be instantly closed and delayed in opening. Specifically, when the detection piston 13 is pushed by the spring and moves towards the filter cartridge 10, the pressure inside the dirt removal frame 132 increases, forcing the adjusting piston 15 to tend to move upwards until it contacts the detection switch 16. After the detection switch 16 is turned on, it sends an electrical signal to the control unit, which can then drive the electromagnetic on / off valve 5 to close instantly. Furthermore, when the adjusting piston 15 contacts the detection switch 16, the spring push rod 151 located at the bottom outer side of the adjusting piston 15 moves upwards simultaneously. Generally, the spring push rod 151 mainly consists of a spring and a push rod, with the spring tending to push the push rod outwards. Figure 4 It can be seen that the inner side of the impurity removal frame 132 has a circular hole corresponding to the spring push rod 151 (i.e., the position of the reset push rod 131). When the adjusting piston 15 moves upward and contacts the spring push rod 151, the spring push rod 151 will abut into the circular hole, restricting the downward movement of the adjusting piston 15. Since the upward adjusting piston 15 synchronously drives the guide frame to move, the guide frame forces the dispersing frame 9 and the locking ring gear frame 12 to be locked together at all times. When the detection piston 13 moves continuously to the left, the reset push rod 131 fixed at the end of the detection piston 13 will abut into the circular hole, i.e. Figure 4 As shown, the reset push rod 131 can disengage the push rod and the round hole in the spring push rod 151, thereby releasing the restriction on the movement of the adjusting piston 15.

[0037] In practical application, sewage is pumped in through inlet pipe 202 and enters the inner cavity of the sludge removal tank 2. After being filtered by filter cartridge 10, it is discharged out through drain pipe 4. At this time, the electromagnetic on / off valve 5 is in the on state. The detailed operation is consistent with that described in Example 1.

[0038] Under normal conditions, the adjusting piston 15 moves downward and enters the inner cavity of the impurity removal frame 132, such as... Figure 4As shown, the adjusting piston 15 and the detection switch 16 move away from each other, and the dispersion frame 9 moves downward and relatively away from the locking ring gear 12. As the cleaning box 2 rotates continuously, the planetary gear assembly 11 drives the detection ring gear 7 and the drive rod 801 to move relative to each other. When the drive rod 801 passes the inclined surface of the outer teeth of the detection ring gear 7, the drive rod 801 moving along the inclined surface will drive the detection piston 13 to move away from the filter cartridge 10 through the detection rod 8, and at the same time compress the spring. The wastewater that has been filtered in the filter cartridge 10 will enter the impurity removal frame 132. When the drive rod 801 passes the outer teeth of the detection ring gear 7, the detection piston 13, pushed by the spring, will push towards the filter cartridge 10, and the wastewater in the impurity removal frame 132 will be discharged into the filter cartridge 10. Since the filtration direction of the filter cartridge 10 is from the outside to the inside, when the filter cartridge 10 is not clogged, the detection piston 13 moves towards the filter cartridge 10 and discharges sewage into the filter cartridge 10. The reset push rod 131 on the detection piston 13 finally abuts against the round hole of the impurity removal frame 132. Then the drive rod 801 will meet the outer teeth of the next detection ring gear 7 again and repeat the above process. It should be noted that since the detection ring gear 7 uses the differential rotation between the planetary gear assembly 11 and the dirt removal box 2, and the direction is opposite to the movement direction of the drive rod 801, as the detection ring gear 7 and the drive rod 801 rotate relative to each other, the position of the drive rod 801 and the outer teeth of the detection ring gear 7 when they contact each other is constantly changing. This design can ensure that when the detection piston 13 is pushed towards the filter cartridge 10, due to the change in the contact position between the outer teeth and the drive rod 801, the part of the filter cartridge 10 that is filtered also changes relatively when the detection piston 13 moves, thereby realizing comprehensive clogging detection of the outer perimeter of the filter cartridge 10.

[0039] When the detection piston 13 moves toward the filter cartridge 10, if the outer filtration section of the filter cartridge 10 is blocked, the detection piston 13, pushed by the spring, will squeeze the sewage in the impurity removal frame 132. The increased sewage pressure will force the adjusting piston 15 to push upwards until it contacts the detection switch 16. At this time, the spring push rod 151 will also move to the circular hole. The adjusting piston 15, guided by the guide frame, pulls the dispersing frame 9 upwards, and the dispersing frame 9 and the locking ring gear 12 engage and lock. This ensures that during the rotation of the dispersing frame 9 by the cleaning box 2, the locking engagement between the dispersing frame 9 and the locking ring gear 12 forces the filter cartridge 10 to rotate more forcefully, thereby overcoming the resistance brought by the tension spring of the limiting rod 14. In this way, the filter cartridge 10 and the impurity removal frame 132 can rotate simultaneously at the same speed, meaning that the impurity removal frame 132 always corresponds to the blocked section on the filter cartridge 10.

[0040] Simultaneously, when the adjusting piston 15 contacts the detection switch 16, it causes the electromagnetic on / off valve 5 to close rapidly. This results in an increase in internal pressure, creating a water hammer effect. Subsequently, the instantaneous pressure backwashes the filtration section through the filter cartridge 10 and acts on the detection piston 13, forcing it to further compress the spring. Figure 3 As shown, a drain groove is provided at the bottom of the outer side of the impurity removal frame 132. When the detection piston 13 moves to the right side, the drain groove can communicate with the filter cartridge 10 through the inner cavity of the impurity removal frame 132. At this time, the instantaneous reverse impact force on the filter cartridge 10 is greater than the pumping speed of the inlet pipe 202, thereby completing the efficient backflushing and unclogging of the filter cartridge 10. Finally, the impurities blocked on the filtration part of the filter cartridge 10 are discharged outward by the drain groove, while relieving the internal pressure of the equipment and avoiding water hammer effect that could cause impact damage to the inside of the equipment.

[0041] When the electromagnetic on / off valve 5 reaches the set closing time, the drain pipe 4 is reconnected. This process can be controlled by a controller. Afterward, the wastewater in the filter cartridge 10 is discharged back into the drain pipe 4. The detection piston 13, pushed by a spring, isolates the inner cavity of the impurity removal frame 132 from the outside. When the detection piston 13 approaches the adjusting piston 15, the reset push rod 131 abuts into the circular hole of the impurity removal frame 132, disengaging the spring push rod 151 from the hole. The adjusting piston 15 and the dispersion frame 9 then descend, separating themselves from the detection switch 16 and the locking ring gear 12, respectively. Repeating the above steps will then achieve continuous filtration and interception of wastewater.

[0042] In summary, this application primarily utilizes the water hammer effect generated by the instantaneous closure of the valve to produce a significant backwashing intensity in the filter cartridge 10 within a short period. This backwashing system requires no additional installation, ensuring that the equipment can backwash and clear blockages based on the water hammer effect while filtering wastewater, thus achieving a novel backwashing and blockage-clearing method. This backwashing and blockage-clearing method ensures that the equipment has sufficient strength to backwash and clear blockages from the filter cartridge 10.

Claims

1. A wastewater degradation treatment device containing organic matter, characterized in that, include: The frame (1) has a cleaning box (2) and a motor (6) mounted on its surface, and the motor (6) drives the cleaning box (2) to rotate using a pulley assembly (601); The bottom of the sludge removal box (2) is equipped with an inlet pipe (202) connected to the water pump. After the sewage transported through the inlet pipe (202) enters the sludge removal box (2), the sludge removal box (2) rotates the sewage to achieve centrifugal filtration of suspended solids in the sewage. The filtered suspended solids are collected by the accumulation ring seat (201) set on the outside of the sludge removal box (2). The side of the frame (1) has a cover (3) that is fastened by a bracket and movablely installed with the sludge removal box (2), and a drain pipe (4) is fixedly installed on the top of the cover (3); a filter cartridge (10) is movably installed on the top of the inner side of the sludge removal box (2). The wastewater after centrifugal filtration is deeply filtered through the filter cartridge (10) and discharged outward from the drain pipe (4). The inside of the sludge removal box (2) is equipped with a dispersing rack (9), and the dispersing rack (9) is fitted with the bottom of the inner side of the sludge removal box (2) by means of an elliptical collar; The bottom of the cover (3) is movably installed with a limiting rod (14) that is pushed against the filter cylinder (10) by a tension spring, and a limiting groove is opened on the top of the outer side of the filter cylinder (10), and an arc groove corresponding to the end of the limiting rod (14) is opened in the limiting groove; The top of the inner side of the dirt removal box (2) is provided with a dirt removal rack (132) that is slidably connected to the outer side of the filter cartridge (10); The planetary gear assembly (11) set at the bottom of the cover (3) enables the dirt removal box (2) to drive the detection ring gear frame (7) to rotate synchronously in opposite directions at a differential speed; The cleaning frame (132) has a detection piston (13) that is pushed by a spring inside. A detection rod (8) is fixedly installed at the end of the detection piston (13), and a drive rod (801) that cooperates with the detection ring gear (7) is installed at the end of the detection rod (8). The outer side of the detection ring gear frame (7) is provided with multiple external teeth arranged at equal angles, and the tooth shape of the external teeth is approximately a right triangle; An adjusting piston (15) is movably installed on the top of the outer side of the impurity removal frame (132), and the top of the adjusting piston (15) is connected to the dispersing frame (9) by a guide frame. A locking ring toothed frame (12) is fixedly installed at the bottom of the filter cartridge (10). The dispersing frame (9) can transmit torque after it abuts against the locking ring toothed frame (12). The top of the inner side of the sludge removal box (2) is fixedly installed with a detection switch (16) located above the adjusting piston (15), and the detection switch (16) is electrically connected to the electromagnetic on / off valve (5) fixed on the top of the drain pipe (4). The detection switch (16) can realize the instantaneous closing and delayed opening of the electromagnetic on / off valve (5). A spring push rod (151) is provided on the bottom outer side of the adjusting piston (15), and a round hole corresponding to the spring push rod (151) is opened on the inner side of the impurity removal frame (132); The end of the detection piston (13) is fixed with a reset push rod (131), and when the reset push rod (131) reaches the round hole, the spring push rod (151) is disengaged from the round hole.

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