Rotary liquid filtering equipment

Abstract

The invention discloses rotary liquid filtering equipment, and relates to the technical field of industrial sewage treatment, the rotary liquid filtering equipment comprises a workbench, an outer tank assembly and an inner tank assembly, the middle end of the top of the workbench is provided with a liquid outlet assembly, and the outer end of the liquid outlet assembly is provided with the outer tank assembly. The pressure difference exists between the inner tank body and the filter-out box, so that sewage containing precipitates can rapidly flow into the filter-out box along with the pressure difference, the situation that the precipitates block the second liquid passing groove can be effectively avoided, the sewage containing the precipitates can be discharged by opening the sewage discharge pipe, and through the operation, the sewage treatment efficiency is improved. According to the present invention, the equipment can achieve sewage filtration without using the filter screen and the filter cloth, the filtration effect of the filtration mode of the present invention is better than the filtration effect of the filter screen and the filter cloth, the frequent cleaning of the filter screen and the filter cloth is not required, the time consumed by the filtration mode of the present invention is less than the time consumed by the precipitation filtration, and the sewage treatment efficiency can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of industrial sewage treatment, in particular to a rotary liquid filtering device. Background Art

[0002] Industrial wastewater is one of the common types of wastewater. It usually contains a large amount of sediment and radioactive elements and needs to be professionally treated before it can be discharged. The first step in industrial wastewater treatment is usually sediment filtration. The sediment filtration of industrial wastewater on the market usually uses filter mesh filter cloth or sedimentation filtration.

[0003] Because industrial wastewater usually contains a high content of sediment, filtering with filter cloth requires frequent cleaning, and industrial wastewater is highly corrosive, which results in a short service life of the filter cloth. Sedimentation filtration has the disadvantages of long sedimentation time and large sedimentation tank space.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a rotary liquid filtering device is proposed. Summary of the invention

[0005] The object of the present invention is to provide a rotary liquid filtering device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a rotary liquid filtering device, comprising a workbench, an outer tank assembly and an inner tank assembly, wherein a liquid outlet assembly is arranged at the top middle end of the workbench, and the outer end of the liquid outlet assembly is provided with an outer tank assembly, wherein the outer tank assembly comprises an outer tank body, a liquid outlet electric control valve, a filter box, a sewage pipe, a driven gear, an air inlet and a permanent magnet, wherein a liquid outlet electric control valve is arranged on the inner side of the outer wall of the outer tank body, and a filter box is provided at the outer end of the outer tank body, the outer end of the filter box is connected with a sewage pipe, and the bottom of the outer tank body A driven gear is arranged on the outside of the part, an air inlet is opened on the outside of the top of the outer tank body, and a permanent magnet is arranged on the inside of the top of the outer tank body, a motor is arranged on the outside of the top of the workbench, and the output end of the motor is connected with a driving gear, an electric control push seat is arranged inside the outer tank body, and the output end of the electric control push seat is connected with the inner tank assembly, a supporting ring seat is arranged at the middle end of the outer side of the outer tank body, and an air inlet assembly is arranged at the top outer end of the outer tank body, a rotating tube is connected to the outside of the top of the outer tank body, and a sewage inlet pipe is arranged on the outside of the top of the rotating tube.

[0007] Furthermore, the outer tank body is connected to the filter box through a liquid outlet electric control valve, and the permanent magnets are distributed in a ring shape inside the outer tank body.

[0008] Furthermore, the motor drives the driving gear to rotate, and the driving gear is meshed with the driven gear.

[0009] Furthermore, the liquid outlet component includes a liquid outlet column, a liquid outlet groove and a liquid outlet pipe. The inner side of the liquid outlet column is provided with a liquid outlet groove, and the end of the liquid outlet groove is connected to the liquid outlet pipe.

[0010] Furthermore, the inner tank assembly includes an inner tank body, a partition, a first liquid through groove, a first return spring, a sealing plate, a second liquid through groove and a third liquid through groove, a partition is arranged at the middle end of the inner tank body, and the first liquid through groove is opened inside the partition, a first return spring is arranged inside the first liquid through groove, and the outer end of the first return spring is connected to the sealing plate, a second liquid through groove is opened on the inner side of the outer edge of the inner tank body, and a third liquid through groove is opened on the inner side of the inner edge of the inner tank body.

[0011] Furthermore, the inner surface of the inner tank body is in contact with the outer surface of the liquid outlet column, the third liquid passage groove is connected to the liquid outlet groove, and the second liquid passage groove is connected to the liquid outlet electric control valve.

[0012] Furthermore, the outer surface of the inner tank body is in contact with the inner surface of the outer tank body, and the inner tank body rises and falls along with the electrically controlled push seat.

[0013] Furthermore, the air intake assembly includes an air intake seat, an air intake groove, a one-way air intake valve, a second return spring, a piston seat, a valve layer and a support seat. An air intake groove is opened on the inner side of the air intake seat, and a one-way air intake valve is arranged at the outer edge of the air intake groove. A second return spring is arranged on the inner side of the air intake groove, and the outer end of the second return spring is connected to the piston seat. A valve layer is arranged on the inner side of the piston seat, and a support seat is arranged between the air intake seat and the workbench.

[0014] Furthermore, the inner contour of the air inlet seat fits with the outer contour of the outer tank body, and the air inlet groove is connected to the air inlet.

[0015] Furthermore, the piston seat is elastically connected to the second return spring, and the outer surface of the piston seat fits the inner contour of the air inlet groove.

[0016] The present invention provides a rotary liquid filtering device, which has the following beneficial effects:

[0017] 1. The present invention can make the driving gear drive the driven gear to rotate through the operation of the motor. Since the driven gear is fixed to the outer tank body, the outer tank body can rotate together with the driven gear, which makes the sewage inside the outer tank body and the inner tank body rotate together with it. Through high-speed rotation, the sediment in the sewage can move toward the tank wall, thereby realizing the separation of the sediment and the water body. A permanent magnet is arranged on the inner side of the top of the outer tank body. During the rotation, the outer tank body will move to the side close to the piston seat. A metal block is buried inside the piston seat, so that the piston seat will pull the second return spring to move due to the suction force of the permanent magnet. During the displacement, the piston seat can suck the outside air into the air inlet groove through the one-way air inlet valve. When the permanent magnet is away from the piston seat, the piston seat will return to its original position due to the resilience of the second return spring. This operation can enable the device to continuously suck external gas into the air inlet groove. When the air inside the air inlet groove increases, the gas will push open the valve layer and enter the outer tank body through the air inlet groove and the air inlet. Through this operation, the air pressure inside the outer tank body can be increased. After the air pressure inside the outer tank body increases, the high pressure can push the sediment centrifuged to the tank wall to move toward the partition inside the inner tank body. During the rotation of the inner tank body, the sealing plate will squeeze the first return spring due to the centrifugal force, which allows the first liquid groove to be opened, allowing the sediment to sink to the bottom of the inner tank body. After the motor stops working, the sealing plate will be rebounded by the first return spring due to the disappearance of centrifugal force. At this time, the partition can isolate the sewage containing sediment and the water body that has been filtered. Through this operation, the equipment can quickly filter the sediment in the water body.

[0018] 2. The present invention opens the liquid outlet electric control valve, and the sewage containing sediment at the bottom of the inner tank body can enter the filter box through the second liquid tank. Because the sewage is pressed into the bottom of the inner tank body with high pressure, and there is a pressure difference between the inner tank body and the filter box, the sewage containing sediment can quickly flow into the filter box with the pressure difference, which can effectively avoid the situation where the sediment blocks the second liquid tank, and by opening the sewage pipe, the collected sewage containing sediment can be discharged. Through the above operation, the equipment can filter sewage without using filter screens and filter cloths. The filtering method of the present application has better filtering effect than filter screens and filter cloths, and does not need to be frequently cleaned like filter screens and filter cloths. In addition, the filtering method of the present application also takes less time than sedimentation filtration, which can improve the sewage treatment efficiency.

[0019] 3. The present invention works through the electric control push seat, which can drive the inner tank body to move upward inside the outer tank body. After the inner tank body moves upward, the third liquid trough can coincide with the position of the liquid outlet trough inside the liquid outlet column. At this time, the water in the outer tank body and the inner tank body can flow through the third liquid trough and the liquid outlet trough, and flow out of the equipment from the liquid outlet pipe. Thanks to the high pressure in the outer tank body and the inner tank body, the flow rate of the water can be effectively increased, which enables the water to be discharged faster. Thanks to the tank pressurization and the design of the inner tank body, the equipment can quickly discharge the water and collect the sediment after the sediment is separated from the water, which enables the equipment to quickly carry out the next round of sewage treatment. By cooperating with the characteristic that the equipment does not need to be cleaned, the sewage filtration efficiency of the equipment can be further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional overall structural schematic diagram of a rotary liquid filtering device of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of a liquid outlet component of a rotary liquid filtering device of the present invention;

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of an outer tank assembly of a rotary liquid filtering device of the present invention;

[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of an inner tank assembly of a rotary liquid filtering device of the present invention;

[0024] Figure 5 It is a schematic diagram of the overall cross-sectional structure of a rotary liquid filtering device of the present invention;

[0025] Figure 6 It is a schematic cross-sectional structural diagram of an air inlet assembly of a rotary liquid filtering device of the present invention;

[0026] Figure 7 The present invention is a schematic cross-sectional structure diagram of an inner tank assembly of a rotary liquid filtering device.

[0027] In the figure: 1, workbench; 2, liquid outlet assembly; 201, liquid outlet column; 202, liquid outlet tank; 203, liquid outlet pipe; 3, outer tank assembly; 301, outer tank body; 302, liquid outlet electric control valve; 303, filter box; 304, sewage pipe; 305, driven gear; 306, air inlet; 307, permanent magnet; 4, motor; 5, driving gear; 6, electric control push seat; 7, inner tank assembly; 701, inner tank body; 70 2. Partition; 703. First liquid channel; 704. First return spring; 705. Sealing plate; 706. Second liquid channel; 707. Third liquid channel; 8. Support ring seat; 9. Air inlet assembly; 901. Air inlet seat; 902. Air inlet groove; 903. One-way air inlet valve; 904. Second return spring; 905. Piston seat; 906. Valve layer; 907. Support seat; 10. Rotating tube; 11. Sewage inlet pipe. DETAILED DESCRIPTION

[0028] See also Figures 1 to 7 The present invention provides a technical solution: a rotary liquid filtering device, comprising a workbench 1, an outer tank assembly 3 and an inner tank assembly 7, a liquid outlet assembly 2 is arranged at the top middle end of the workbench 1, and the outer end of the liquid outlet assembly 2 is arranged with the outer tank assembly 3, the outer tank assembly 3 comprises an outer tank body 301, a liquid outlet electric control valve 302, a filter box 303, a sewage pipe 304, a driven gear 305, an air inlet 306 and a permanent magnet 307, a liquid outlet electric control valve 302 is arranged on the inner side of the outer wall of the outer tank body 301, and a filter box 303 is arranged at the outer end of the outer tank body 301, the outer end of the filter box 303 is connected with the sewage pipe 304, and the bottom of the outer tank body 301 A driven gear 305 is arranged on the outer side of the outer tank body 301, an air inlet 306 is opened on the outer side of the top of the outer tank body 301, and a permanent magnet 307 is arranged on the inner side of the top of the outer tank body 301, a motor 4 is arranged on the outer side of the top of the workbench 1, and the output end of the motor 4 is connected to the driving gear 5, an electric control push seat 6 is arranged inside the outer tank body 301, and the output end of the electric control push seat 6 is connected to the inner tank assembly 7, a supporting ring seat 8 is arranged at the middle end of the outer side of the outer tank body 301, and an air inlet assembly 9 is arranged at the outer end of the top of the outer tank body 301, a rotating tube 10 is connected to the outer side of the top of the outer tank body 301, and a sewage inlet pipe 11 is arranged on the outer side of the top of the rotating tube 10.

[0029] See also Figures 1 to 7The outer tank body 301 is connected to the filter box 303 through the liquid outlet electric control valve 302, and the permanent magnet 307 is distributed in a ring shape inside the outer tank body 301. The motor 4 drives the driving gear 5 to rotate, and the driving gear 5 is meshed with the driven gear 305. The liquid outlet component 2 includes a liquid outlet column 201, a liquid outlet groove 202 and a liquid outlet pipe 203. The inner side of the liquid outlet column 201 is provided with a liquid outlet groove 202, and the end of the liquid outlet groove 202 is connected to the liquid outlet pipe 203. The inner tank component 7 includes an inner tank body 701, a partition 702, a first liquid outlet groove 703, and a first reset spring. The inner tank body 701 is provided with a partition plate 702 at the middle end thereof, and a first liquid-passing groove 703 is provided inside the partition plate 702, a first return spring 704 is provided inside the first liquid-passing groove 703, and a sealing plate 705 is connected to the outer end of the first return spring 704, a second liquid-passing groove 706 is provided on the inner side of the outer edge of the inner tank body 701, and a third liquid-passing groove 707 is provided on the inner side of the inner edge of the inner tank body 701, and the inner surface of the inner tank body 701 is connected to the outer surface of the liquid outlet column 201. The surfaces are in contact with each other, the third liquid-passing groove 707 is connected to the liquid-outlet groove 202, the second liquid-passing groove 706 is connected to the liquid-outlet electric-controlled valve 302, the outer surface of the inner tank body 701 is in contact with the inner surface of the outer tank body 301, and the inner tank body 701 rises and falls with the electric-controlled push seat 6, the air-inlet assembly 9 includes an air-inlet seat 901, an air-inlet groove 902, a one-way air-inlet valve 903, a second return spring 904, a piston seat 905, a valve layer 906 and a support seat 907, an air-inlet groove 902 is provided on the inner side of the air-inlet seat 901, and a one-way air-inlet valve 903 is provided on the outer edge of the air-inlet groove 902. Inlet valve 903, a second return spring 904 is arranged on the inner side of the air inlet groove 902, and the outer end of the second return spring 904 is connected to a piston seat 905, a valve layer 906 is arranged on the inner side of the piston seat 905, a support seat 907 is arranged between the air inlet seat 901 and the workbench 1, the inner contour of the air inlet seat 901 is matched with the outer contour of the outer tank body 301, the air inlet groove 902 is connected with the air inlet port 306, the piston seat 905 is elastically connected to the second return spring 904, and the outer surface of the piston seat 905 is matched with the inner contour of the air inlet groove 902;

[0030] The specific operation is as follows: the staff opens the valve at the sewage inlet pipe 11, and the industrial sewage to be treated can enter the outer tank body 301 and the inner tank body 701 through the sewage inlet pipe 11. At this time, the motor 4 works to enable the driving gear 5 to drive the driven gear 305 to rotate. Since the driven gear 305 is fixed to the outer tank body 301, the outer tank body 301 can rotate with the driven gear 305, which makes the sewage inside the outer tank body 301 and the inner tank body 701 rotate with it. Through high-speed rotation, the sediment in the sewage can move toward the tank wall, thereby realizing the separation of the sediment and the water body. During the rotation of the outer tank body 301, the support ring seat 8 and the air inlet seat 901 can support and position it, which can prevent the outer tank body 301 from rotating too much. The outer tank body 301 is provided with a permanent magnet 307 on the inner side of the top of the outer tank body 301, and the outer tank body 301 will move to the side close to the piston seat 905 during the rotation. A metal block is buried inside the piston seat 905, which makes the piston seat 905 move due to the suction force of the permanent magnet 307, and the second return spring 904 is pulled by the piston seat 905 to move. During the displacement of the piston seat 905, the outside air can be sucked into the air inlet groove 902 through the one-way air inlet valve 903. When the permanent magnet 307 is away from the piston seat 905, the piston seat 905 will be pulled by the second return spring 904 to move. The rebound force of 904 returns to its original position, and this reciprocating operation can enable the device to continuously inhale external gas into the air inlet groove 902. When the air inside the air inlet groove 902 increases, the gas will push open the valve layer 906 and enter the outer tank body 301 through the air inlet groove 902 and the air inlet 306. Through this operation, the air pressure inside the outer tank body 301 can be increased. After the air pressure inside the outer tank body 301 increases, the high pressure can push the sediment centrifuged to the tank wall to move toward the partition 702 inside the inner tank body 701. During the rotation of the inner tank body 701, the sealing plate 705 will squeeze the first return spring 704 due to the centrifugal force, which enables the first liquid groove 703 to be opened, so that the sediment can sink to the bottom of the inner tank body 701, and the motor After the work is suspended, the sealing plate 705 will be rebounded by the first return spring 704 due to the disappearance of centrifugal force. At this time, the partition plate 702 can isolate the sewage containing sediments from the water body after filtration. Through this operation, the equipment can quickly filter the sediments in the water body. By opening the liquid outlet electric control valve 302, the sewage containing sediments at the bottom of the inner tank body 701 can enter the filter box 303 along the second liquid tank 706. Because the sewage is pressed into the bottom of the inner tank body 701 with high pressure, and there is a pressure difference between the inner tank body 701 and the filter box 303, the sewage containing sediments can quickly flow into the filter box 303 along with the pressure difference, which can effectively avoid the situation that the sediments block the second liquid tank 706. By opening the sewage pipe 304,The present invention can realize the discharge of the collected sewage containing sediment. Through the above operation, the equipment can filter the sewage without using the filter screen and filter cloth. The filtering method of the present invention has better filtering effect than the filter screen and filter cloth. At the same time, it does not need to be frequently cleaned like the filter screen and filter cloth. In addition, the filtering method of the present invention also takes less time than sedimentation filtration, which can improve the sewage treatment efficiency. After the sediment in the water body is cleaned, the electric control push seat 6 works, which can drive the inner tank body 701 to move up inside the outer tank body 301. After the inner tank body 701 moves up, the third liquid tank 707 and the liquid outlet tank 2 inside the liquid outlet column 201 can be connected. 02 positions overlap, at this time the water in the outer tank 301 and the inner tank 701 can flow through the third liquid tank 707 and the liquid outlet tank 202, and flow out of the equipment from the liquid outlet pipe 203. Thanks to the high pressure inside the outer tank 301 and the inner tank 701, the flow rate of the water can be effectively increased, which allows the water to be discharged faster. Thanks to the tank pressurization and the design of the inner tank 701, the equipment can quickly discharge the water and collect the sediment after the sediment is separated from the water, which allows the equipment to quickly carry out the next round of sewage treatment. By cooperating with the characteristics of the equipment that does not require cleaning, the sewage filtration efficiency of the equipment can be further improved. ,

[0031] In summary, when the rotary liquid filtering device is used, the staff first opens the valve at the sewage inlet pipe 11, and the industrial sewage to be treated can enter the outer tank body 301 and the inner tank body 701 through the sewage inlet pipe 11. At this time, the motor 4 works to enable the driving gear 5 to drive the driven gear 305 to rotate. Since the driven gear 305 is fixed to the outer tank body 301, the outer tank body 301 can rotate together with the driven gear 305, so that the sewage inside the outer tank body 301 and the inner tank body 701 can rotate together with them. Through high-speed rotation, the sediment in the sewage can move toward the tank wall, thereby realizing the separation of the sediment and the water body;

[0032] Then, during the rotation of the outer tank body 301, the support ring seat 8 and the air inlet seat 901 can support and position it, which can prevent the outer tank body 301 from shaking and deflecting during the rotation. Ball bearings are arranged on the fitting surfaces of the support ring seat 8 and the air inlet seat 901 with the outer tank body 301, which can effectively reduce the friction between the support ring seat 8 and the air inlet seat 901 and the outer tank body 301. A permanent magnet 307 is arranged on the inner side of the top of the outer tank body 301. During the rotation, the outer tank body 301 will move to the side close to the piston seat 905. A metal block is embedded inside the piston seat 905, so that the piston seat 905 will be displaced by pulling the second return spring 904 due to the suction force of the permanent magnet 307. During the displacement process, the piston seat 905 can suck the external air into the air inlet groove 902 through the one-way air inlet valve 903. When the permanent magnet 307 is away from the piston seat 905, the piston seat 905 will return to its original position due to the rebound force of the second return spring 904. This reciprocating operation can enable the device to continuously suck the external air into the air inlet groove 902.

[0033] Then, when the air in the air inlet groove 902 increases, the gas will push open the valve layer 906 and enter the outer tank body 301 through the air inlet groove 902 and the air inlet 306. Through this operation, the air pressure inside the outer tank body 301 can be increased. After the air pressure inside the outer tank body 301 increases, the high pressure can push the sediment centrifuged to the tank wall to move toward the partition 702 inside the inner tank body 701. During the rotation of the inner tank body 701, the sealing plate 705 will be squeezed by the centrifugal force to displace the first return spring 704, so that the first liquid groove 703 can be opened, so that the sediment can sink to the bottom of the inner tank body 701. After the motor 4 stops working, the sealing plate 705 will be rebounded by the first return spring 704 due to the disappearance of centrifugal force. At this time, the partition 702 can isolate the sewage containing sediment and the water body that has been filtered. Through this operation, the equipment can quickly filter the sediment in the water body.

[0034] Subsequently, the discharge electric control valve 302 is opened, and the sewage containing sediment at the bottom of the inner tank body 701 can enter the filter box 303 along the second liquid tank 706. Because the sewage is pressed into the bottom of the inner tank body 701 with high pressure, and there is a pressure difference between the inner tank body 701 and the filter box 303, the sewage containing sediment can quickly flow into the filter box 303 with the pressure difference, which can effectively avoid the situation where the sediment blocks the second liquid tank 706. By opening the sewage pipe 304, the sewage containing sediment can be discharged. Through the above operation, the equipment can filter sewage without using a filter screen or filter cloth. The filtering method of the present application has a better filtering effect than the filter screen and filter cloth, and does not need to be frequently cleaned like the filter screen and filter cloth. In addition, the filtering method of the present application also takes less time than sedimentation filtration, which can improve the sewage treatment efficiency.

[0035] Finally, after the sediment in the water body is cleaned up, the electric control push seat 6 works, which can drive the inner tank body 701 to move upward inside the outer tank body 301. After the inner tank body 701 moves upward, the third liquid groove 707 can coincide with the position of the liquid outlet groove 202 inside the liquid outlet column 201. At this time, the water in the outer tank body 301 and the inner tank body 701 can flow through the third liquid groove 707 and the liquid outlet groove 202, and flow out of the equipment from the liquid outlet pipe 203. Thanks to the high pressure in the outer tank body 301 and the inner tank body 701, the flow rate of the water can be effectively increased, which enables the water to be discharged faster. Thanks to the design of the tank pressurization and the inner tank body 701, the equipment can quickly discharge the water and collect the sediment after separating the sediment from the water, which enables the equipment to quickly carry out the next round of sewage treatment. By cooperating with the characteristic that the equipment does not need to be cleaned, the sewage filtration efficiency of the equipment can be further improved.

[0036] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A rotary liquid filtering device, characterized in that: The invention comprises a workbench (1), an outer tank assembly (3) and an inner tank assembly (7); a liquid outlet assembly (2) is arranged at the middle of the top of the workbench (1), and the outer end of the liquid outlet assembly (2) is provided with the outer tank assembly (3); the outer tank assembly (3) comprises an outer tank body (301), a liquid outlet electric control valve (302), a filter box (303), a sewage pipe (304), a driven gear (305), an air inlet (306) and a permanent magnet (307); a liquid outlet electric control valve (302) is arranged on the inner side of the outer wall of the outer tank body (301), and a filter box (303) is arranged on the outer end of the outer tank body (301); the outer end of the filter box (303) is connected to the sewage pipe (304); a driven gear (305) is arranged on the outer side of the bottom of the outer tank body (301); 305), an air inlet (306) is provided on the outer side of the top of the outer tank body (301), and a permanent magnet (307) is arranged on the inner side of the top of the outer tank body (301), a motor (4) is arranged on the outer side of the top of the workbench (1), and the output end of the motor (4) is connected to a driving gear (5), an electric control push seat (6) is arranged inside the outer tank body (301), and the output end of the electric control push seat (6) is connected to an inner tank assembly (7), a support ring seat (8) is arranged at the middle end of the outer side of the outer tank body (301), and an air inlet assembly (9) is arranged at the outer end of the top of the outer tank body (301), a rotating tube (10) is connected to the outer side of the top of the outer tank body (301), and a sewage inlet pipe (11) is arranged on the outer side of the top of the rotating tube (10).

2. A rotary liquid filtering device according to claim 1, characterized in that: The outer tank body (301) is connected to the filter box (303) via the liquid outlet electric control valve (302), and the permanent magnets (307) are distributed in a ring shape inside the outer tank body (301).

3. The rotary liquid filtering device according to claim 1, characterized in that: The motor (4) drives the driving gear (5) to rotate, and the driving gear (5) is meshed with the driven gear (305).

4. The rotary liquid filtering device according to claim 1, characterized in that: The liquid outlet component (2) comprises a liquid outlet column (201), a liquid outlet groove (202) and a liquid outlet pipe (203); the liquid outlet groove (202) is provided on the inner side of the liquid outlet column (201), and the end of the liquid outlet groove (202) is connected to the liquid outlet pipe (203).

5. A rotary liquid filtering device according to claim 4, characterized in that: The inner tank assembly (7) comprises an inner tank body (701), a partition (702), a first liquid-passing groove (703), a first return spring (704), a sealing plate (705), a second liquid-passing groove (706) and a third liquid-passing groove (707); a partition (702) is arranged at the middle end of the inner tank body (701), and the first liquid-passing groove (703) is provided inside the partition (702); a first return spring (704) is arranged inside the first liquid-passing groove (703), and the outer end of the first return spring (704) is connected to the sealing plate (705); a second liquid-passing groove (706) is provided on the inner side of the outer edge of the inner tank body (701), and a third liquid-passing groove (707) is provided on the inner side of the inner edge of the inner tank body (701).

6. A rotary liquid filtering device according to claim 5, characterized in that: The inner surface of the inner tank body (701) is in contact with the outer surface of the liquid outlet column (201), the third liquid channel (707) is connected to the liquid outlet channel (202), and the second liquid channel (706) is connected to the liquid outlet electric control valve (302).

7. The rotary liquid filtering device according to claim 5, characterized in that: The outer surface of the inner tank body (701) is in contact with the inner surface of the outer tank body (301), and the inner tank body (701) rises and falls along with the electric control push seat (6).

8. The rotary liquid filtering device according to claim 1, characterized in that: The air intake assembly (9) comprises an air intake seat (901), an air intake groove (902), a one-way air intake valve (903), a second return spring (904), a piston seat (905), a valve layer (906) and a support seat (907). An air intake groove (902) is provided on the inner side of the air intake seat (901), and a one-way air intake valve (903) is provided at the outer edge of the air intake groove (902). A second return spring (904) is arranged on the inner side of the air intake groove (902), and the outer end of the second return spring (904) is connected to the piston seat (905). A valve layer (906) is arranged on the inner side of the piston seat (905), and a support seat (907) is provided between the air intake seat (901) and the workbench (1).

9. The rotary liquid filtering device according to claim 8, characterized in that: The inner contour of the air inlet seat (901) fits the outer contour of the outer tank body (301), and the air inlet groove (902) is connected to the air inlet port (306).

10. The rotary liquid filtering device according to claim 8, characterized in that: The piston seat (905) is elastically connected to the second return spring (904), and the outer surface of the piston seat (905) fits the inner contour of the air inlet groove (902).

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