Wastewater filtering device for hazardous solid waste tail liquid treatment

Abstract

The utility model belongs to wastewater treatment technical field especially relates to a kind of wastewater filtering device for hazardous solid waste tail liquid treatment, including rack, further include: top cover, top cover is movably connected in the top of pretreatment cylinder, the top eccentricity of top cover is fixedly connected with inlet pipe, the bottom of top cover is slidably connected with filter cartridge, the wall surface of filter cartridge is equipped with multiple leakage holes, the bottom of filter cartridge is fixedly connected with two filter boxes symmetrically, the top of filter cartridge is fixedly connected with two wheel stands symmetrically, the wall surface of each wheel stand is rotatably connected with gyro wheel, the wall surface of each filter box is equipped with multiple filter holes, the bottom of the cavity of filter cartridge is fixedly connected with connecting shaft, the wall surface of connecting shaft is slidably connected with rotating shaft, and rotating shaft is rotatably connected in the bottom of top cover, the filter cartridge and filter box set in the cavity of pretreatment cylinder not only can realize the filtration of wastewater, but also can realize the effect of preventing blockage by vibration and air flushing caused by filtration simultaneously.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment technology, and in particular relates to a wastewater filtration device for treating hazardous solid waste tailings. Background Technology

[0002] "Hazardous waste solid waste tailings wastewater" originates from the washing, dewatering, leaching and other treatment processes of solid waste (such as garbage and waste residue). Because it may carry pollutants such as heavy metals and toxic organic matter from the original solid waste, it often has dangerous characteristics such as corrosiveness and toxicity. This type of wastewater must be managed in accordance with the hazardous waste management standards and must be professionally disposed of by qualified units. Random discharge is strictly prohibited.

[0003] In traditional wastewater treatment processes, filtration is the primary method for initial wastewater treatment. However, traditional filtration methods rely on static filter screens for initial filtration, which has the following problems: 1. It cannot provide continuous filtration; as filtration time increases, impurities accumulate on the filter screen walls, affecting filtration efficiency; 2. After a period of filtration, the accumulated impurities on the filter screen need to be manually cleaned, a process that requires not only manual handling but also shutdown of the machine.

[0004] In view of this, we propose a wastewater filtration device for the treatment of hazardous waste and solid waste tailings. Utility Model Content

[0005] The purpose of this invention is to provide a wastewater filtration device for treating hazardous solid waste tailings, in order to solve the problems mentioned in the background art.

[0006] In view of this, the present invention provides a wastewater filtration device for treating hazardous solid waste tailings, including a frame, a pretreatment cylinder fixedly connected to one side of the top of the frame, and further comprising: The top cover is movably snapped onto the top of the pretreatment cylinder. A water inlet pipe is fixedly connected to the eccentric part of the top of the top cover. A filter cylinder is slidably connected to the bottom of the top cover. The filter cylinder has multiple leakage holes on its wall surface. Two filter boxes are symmetrically fixedly connected to the bottom of the filter cylinder. Two wheel frames are symmetrically fixedly connected to the top of the filter cylinder. Rollers are rotatably connected to the wall surface of each wheel frame. Multiple filter holes are opened on the wall surface of each filter box. A connecting shaft is fixedly connected to the bottom of the cavity of the filter cylinder. A rotating shaft is slidably connected to the wall surface of the connecting shaft. The rotating shaft is rotatably connected to the bottom of the top cover. A crossbar is fixedly connected to the bottom of the filter cartridge, and two cleaning brushes are symmetrically fixedly connected to both sides of the top cover; A sedimentation assembly, located at the top of the frame, is used to settle the filtered water in the pretreatment chamber.

[0007] In this technical solution, during use, the inlet pipe at the top of the cover is connected to the wastewater conveying pipe, thereby introducing the wastewater to be treated into the cavity of the pretreatment cylinder through the inlet pipe. When the wastewater enters the cavity of the pretreatment cylinder from the inlet pipe, it initially accumulates directly in the cavity of the filter cartridge and filter box. Then, the motor power is turned on, and the motor drives the rotating shaft to rotate through the coupling. As the shaft rotates, it drives the filter cartridge to rotate through the coupling. When the filter cartridge rotates, it synchronously drives the filter box, wheel frame, and rollers to rotate synchronously. At this time, the wastewater in the cavity of the filter cartridge and filter box undergoes preliminary filtration through the leakage holes on the filter cartridge wall and the filter holes on the filter box wall as the filter cartridge and filter box rotate. At this time, the filtered impurities remain in the cavity of the filter cartridge and filter box. Then, the filtered wastewater accumulates at the bottom of the cavity of the pretreatment cylinder. As the rollers rotate synchronously with the rotation of the filter cartridge, the rollers... The filter cartridge will roll along the top of the curved track. At this time, the filter cartridge will drive the connecting shaft to move up and down in the cavity of the pretreatment cylinder, thereby shaking the impurities blocking the leakage holes on the filter cartridge wall downwards. The filter holes on the inclined surface of the filter box will allow airflow to pass through them due to the rotation of the filter box, and flush the impurities blocking the filter holes back into the filter box cavity. Then, the crossbar and cleaning brush will also rotate with the rotation of the filter cartridge, thereby brushing off the impurities accumulated on the inner wall of the pretreatment cylinder. After the wastewater in the pretreatment cylinder cavity is pre-filtered, the water pump is started to pump the wastewater in the pretreatment cylinder cavity into the connecting pipe cavity, and then from the connecting pipe cavity into the sedimentation cylinder cavity for sedimentation. After the wastewater has settled in the sedimentation cylinder cavity, the one-way valve at the bottom of the side wall of the sedimentation cylinder is opened to discharge the settled water. The water discharged from the drain pipe can then be used. The sediment accumulated in the sedimentation cylinder cavity can be discharged from the slag discharge pipe by opening the valve at the end of the slag discharge pipe.

[0008] In the above technical solution, each filter box is a fan-shaped hollow box, and the filter holes on the wall of each filter box are located on the inclined surface of the filter box.

[0009] In this technical solution, the filter holes on the filter box wall can filter wastewater, and the airflow can pass through the filter holes as the filter box rotates.

[0010] In the above technical solution, the connecting shaft is cylindrical, and a sliding groove is provided at the top of the connecting shaft. The sliding groove is an inverted T-shaped groove, and the rotating shaft is an inverted T-shaped rod. The rotating shaft is slidably connected within the sliding groove.

[0011] In this technical solution, the slide groove allows the rotating shaft to slide inside at all times, thereby indirectly causing the filter cartridge to slide up and down reciprocally.

[0012] In the above technical solution, each of the wheel frames is an inverted concave block, each of the rollers is rotatably connected to the bottom opening of the wheel frame, and a curved rail is detachably connected inside the cavity of the frame. The curved rail is an arc-shaped ring, and the bottom of each roller contacts the top of the curved rail.

[0013] In this technical solution, the roller can roll along the undulating arc surface at the top of the curved track.

[0014] In the above technical solution, the precipitation component further includes: A sedimentation tank is fixedly connected to the top of the frame, opposite to the pretreatment tank. A connecting pipe is fixedly connected to the top of the side wall of the sedimentation tank, and the other end of the connecting pipe is connected to one side of the cavity of the pretreatment tank. A water pump is fixedly connected to the middle section of the connecting pipe. A slag discharge pipe is installed at the bottom of the cavity of the sedimentation tank, and a valve is installed at the connection between the slag discharge pipe and the sedimentation tank. A drain pipe is installed at the bottom of one side of the sedimentation tank, and a one-way valve is installed at the outlet of the drain pipe.

[0015] In this technical solution, the sedimentation component can perform sedimentation treatment on wastewater after pre-filtration, so that the water can be reused.

[0016] In the above technical solution, a motor is further installed on the top of the top cover. The motor drives the rotating shaft to rotate through a coupling. Two pairs of ears are symmetrically fixedly connected to both sides of the top cover. A bolt is installed on the top of each pair of ears. Two fixed ears are symmetrically fixedly connected to both sides of the top of the frame. The positions of the two fixed ears are opposite to the positions of the two pairs of ears. A threaded groove suitable for the bolt on the ear wall is opened on the top of each fixed ear.

[0017] In this technical solution, the top cover is removed from the top of the pretreatment cylinder by separating the bolts at the top of each pair of ears from the wall of the fixed ear, which facilitates the cleaning of the filter cartridge, filter box and cleaning brush wall. The top cover can be fixed to the top of the pretreatment cylinder by passing the bolts through both the pair of ears and the wall of the fixed ear.

[0018] In the above technical solution, the crossbar is rectangular, and the two cleaning brushes are erected inside the cavity of the frame, with one side of the two cleaning brushes contacting the arc surface inside the cavity of the frame.

[0019] In this technical solution, as the cleaning brush rotates with the crossbar, it scrapes off the clumps of impurities in the pretreatment cylinder.

[0020] The beneficial effects of this utility model are: 1. This wastewater filtration device for treating hazardous solid waste tailings can not only filter wastewater through the movable filter cartridge and filter box set in the pretreatment cylinder, but also achieve the effect of preventing clogging through the vibration and air flushing brought about by filtration, thereby avoiding the problem of needing to stop the machine regularly to manually clean the filter screen.

[0021] 2. The wastewater filtration device for treating hazardous solid waste tailings can prevent impurities from accumulating in the pretreatment chamber during water filtration by setting up cleaning brushes, thus preventing them from affecting subsequent cleaning of the pretreatment chamber. Attached Figure Description

[0022] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a perspective view of the pretreatment cylinder and sedimentation cylinder cavity of this utility model; Figure 3 This is an exploded view of the top cover and pretreatment cylinder of this utility model; Figure 4 This is an exploded view of the rotating shaft and connecting shaft of this utility model; Figure 5 This is a cross-sectional view of the filter cartridge of this utility model.

[0023] The markings in the diagram are as follows: 10. Frame; 11. Pretreatment cylinder; 12. Connecting pipe; 13. Water pump; 14. Sedimentation cylinder; 15. Slag discharge pipe; 16. Fixed lug; 17. Curved rail; 18. Top cover; 19. Opposite lug; 20. Motor; 21. Filter cartridge; 22. Filter box; 23. Wheel frame; 24. Roller; 25. Connecting shaft; 26. Slide groove; 27. Rotating shaft; 28. Crossbar; 29. ​​Cleaning brush. Detailed Implementation

[0024] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0025] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0026] Example 1: This example provides a wastewater filtration device for treating hazardous solid waste tailings, including a frame 10, a pretreatment cylinder 11 fixedly connected to one side of the top of the frame 10, and further including: The top cover 18 is movably snapped onto the top of the pretreatment cylinder 11. A water inlet pipe is fixedly connected to the eccentric part of the top of the top cover 18. A filter cylinder 21 is slidably connected to the bottom of the top cover 18. Multiple leakage holes are opened on the wall of the filter cylinder 21. Two filter boxes 22 are symmetrically fixedly connected to the bottom of the filter cylinder 21. Two wheel frames 23 are symmetrically fixedly connected to the top of the filter cylinder 21. Rollers 24 are rotatably connected to the wall of each wheel frame 23. Multiple filter holes are opened on the wall of each filter box 22. A connecting shaft 25 is fixedly connected to the bottom of the cavity of the filter cylinder 21. A rotating shaft 27 is slidably connected to the wall of the connecting shaft 25. The rotating shaft 27 is rotatably connected to the bottom of the top cover 18. A crossbar 28 is fixedly connected to the bottom of the filter cartridge 21, and two cleaning brushes 29 are symmetrically fixedly connected to both sides of the top cover 18. A sedimentation assembly is located at the top of the frame 10 and is used to settle the filtered water in the pretreatment cylinder 11.

[0027] In operation, the inlet pipe at the top of the top cover 18 is connected to the wastewater conveying pipe, allowing the wastewater to be treated to be introduced into the cavity of the pretreatment cylinder 11 through the inlet pipe. As the wastewater enters the cavity of the pretreatment cylinder 11 from the inlet pipe, it initially accumulates directly in the cavities of the filter cartridge 21 and filter box 22. Then, the power to the motor 20 is turned on, and the motor 20 drives the rotating shaft 27 to rotate via the coupling. As the rotating shaft 27 rotates, it drives the filter cartridge 21 to rotate via the connecting shaft 25. The rotation of the filter cartridge 21 synchronously drives the filter box 22 and the wheel frame 23. As the roller 24 rotates synchronously with the filter cylinder 21 and filter box 22, the wastewater inside undergoes preliminary filtration through the perforations on the wall of the filter cylinder 21 and the filter holes on the wall of the filter box 22. The filtered impurities remain within the chambers of the filter cylinder 21 and filter box 22. The filtered wastewater then accumulates at the bottom of the pretreatment cylinder 11. The roller 24 rotates synchronously with the filter cylinder 21, rolling along the top of the curved track 17. Simultaneously, the filter cylinder 21 drives the connecting shaft 25 to reciprocate up and down within the pretreatment cylinder 11. This causes impurities blocking the leak holes on the wall of filter cartridge 21 to fall downwards. The rotation of filter box 22 allows airflow to pass through the filter holes on its inclined surface, flushing the impurities clogged within back into the filter box 22 cavity. Then, the crossbar 28 and cleaning brush 29 also rotate with the filter cartridge 21, brushing off the impurities accumulated on the inner wall of pretreatment cartridge 11. After pre-filtration, the wastewater in pretreatment cartridge 11 is pumped by water pump 13 to connecting pipe 12, and then from connecting pipe 12 into sedimentation cartridge 14 for sedimentation. After sedimentation is completed in the sedimentation tank 14, the one-way valve at the bottom of the side wall of the sedimentation tank 14 is opened to discharge the settled water. The water discharged from the drain pipe can then be used. The sediment accumulated in the sedimentation tank 14 can be discharged from the slag discharge pipe 15 by opening the valve at the end of the slag discharge pipe 15. The movable filter cartridge 21 and filter box 22 installed in the pretreatment tank 11 can not only filter the wastewater, but also achieve the anti-clogging effect through the vibration and air flushing brought about by filtration, thus avoiding the problem of needing to stop the machine regularly to manually clean the filter screen.

[0028] Example 2: This example provides a wastewater filtration device for treating hazardous solid waste tailings. In addition to the technical solutions of the above examples, it also has the following technical features: each filter box 22 is a fan-shaped hollow box, and the filter holes on the wall of each filter box 22 are located on the inclined surface of the filter box 22.

[0029] The filter holes on the wall of the filter box 22 can filter wastewater, and the airflow can pass through the filter holes as the filter box 22 rotates.

[0030] Example 3: This example provides a wastewater filtration device for treating hazardous solid waste tailings. In addition to the technical solutions of the above examples, it also has the following technical features: the connecting shaft 25 is cylindrical, and a sliding groove 26 is provided at the top of the connecting shaft 25. The sliding groove 26 is an inverted T-shaped groove, and the rotating shaft 27 is an inverted T-shaped rod. The rotating shaft 27 is slidably connected in the sliding groove 26.

[0031] The groove 26 allows the rotating shaft 27 to slide inside, thereby indirectly causing the filter cartridge 21 to slide up and down repeatedly.

[0032] Example 4: This example provides a wastewater filtration device for treating hazardous solid waste tailings. In addition to the technical solutions of the above examples, it also has the following technical features: each wheel frame 23 is an inverted concave block, each roller 24 is rotatably connected to the bottom opening of the wheel frame 23, and a curved rail 17 is detachably connected to the cavity of the frame 10. The curved rail 17 is an arc-shaped ring, and the bottom of each roller 24 is in contact with the top of the curved rail 17.

[0033] Among them, the roller 24 can roll along the undulating arc surface at the top of the curved track 17.

[0034] Example 5: This example provides a wastewater filtration device for treating hazardous solid waste tailings. In addition to the technical solutions described in the above examples, it also has the following technical features: the sedimentation component includes: A sedimentation cylinder 14 is fixedly connected to the top of the frame 10, opposite to the pretreatment cylinder 11. A connecting pipe 12 is fixedly connected to the top of the side wall of the sedimentation cylinder 14. The other end of the connecting pipe 12 is connected to one side of the cavity of the pretreatment cylinder 11. A water pump 13 is fixedly connected to the middle section of the connecting pipe 12. A slag discharge pipe 15 is installed at the bottom of the cavity of the sedimentation cylinder 14. A valve is installed at the connection between the slag discharge pipe 15 and the sedimentation cylinder 14. A drain pipe is installed at the bottom of one side of the sedimentation cylinder 14. A one-way valve is installed at the drain pipe opening.

[0035] The sedimentation unit can perform sedimentation treatment on wastewater after pre-filtration, so that the water can be reused.

[0036] Example 6: This example provides a wastewater filtration device for treating hazardous solid waste tailings. In addition to the technical solutions of the above examples, it also has the following technical features: a motor 20 is installed on the top of the top cover 18. The motor 20 drives the rotating shaft 27 to rotate through a coupling. Two pairs of lugs 19 are symmetrically fixedly connected to both sides of the top cover 18. Each pair of lugs 19 has a bolt installed on its top. Two fixed lugs 16 are symmetrically fixedly connected to both sides of the top of the frame 10. The positions of the two fixed lugs 16 are opposite to the positions of the two pairs of lugs 19. Each fixed lug 16 has a threaded groove on its top that is suitable for the bolt on the wall of the pair of lugs 19.

[0037] The top cover 18 is removed from the top of the pretreatment cylinder 11 by separating the bolts at the top of each ear 19 from the wall of the fixed ear 16, thereby facilitating the cleaning of the walls of the filter cartridge 21, filter box 22 and cleaning brush 29. The top cover 18 can be fixed to the top of the pretreatment cylinder 11 by bolts passing through the walls of both the ear 19 and the fixed ear 16.

[0038] Example 7: This example provides a wastewater filtration device for treating hazardous solid waste tailings. In addition to the technical solutions of the above examples, it also has the following technical features: the crossbar 28 is a rectangular bar, and two cleaning brushes 29 are erected in the cavity of the frame 10. One side of the two cleaning brushes 29 is in contact with the arc surface inside the cavity of the frame 10.

[0039] When the cleaning brush 29 rotates with the crossbar 28, it scrapes off the clumps of impurities in the pretreatment cylinder 11. By setting the cleaning brush 29, it can prevent the clumps of impurities in the pretreatment cylinder 11 from accumulating and affecting the subsequent cleaning of the pretreatment cylinder 11 when the filter cylinder 21 and filter box 22 are filtering water.

[0040] Working principle: During use, the inlet pipe at the top of the top cover 18 is connected to the wastewater conveying pipe, so that the wastewater to be treated is introduced into the cavity of the pretreatment cylinder 11 through the inlet pipe. When the wastewater enters the cavity of the pretreatment cylinder 11 from the inlet pipe, the wastewater will first accumulate directly in the cavity of the filter cartridge 21 and the filter box 22. Then, the power supply of the motor 20 is turned on, and the motor 20 will drive the rotating shaft 27 to rotate through the coupling. As the rotating shaft 27 rotates, the rotating shaft 27 will drive the filter cartridge 21 to rotate through the connecting shaft 25. When the filter cartridge 21 rotates, it synchronously drives the filter box 22, wheel frame 23, and roller 24 to rotate synchronously. At this time, the wastewater in the chambers of the filter cartridge 21 and filter box 22 will undergo preliminary filtration through the leakage holes on the wall of the filter cartridge 21 and the filter holes on the wall of the filter box 22 as the filter cartridge 21 and filter box 22 rotate. At this time, the filtered impurities will always remain in the chambers of the filter cartridge 21 and filter box 22. Then, the filtered wastewater will accumulate at the bottom of the chamber of the pretreatment cylinder 11. When the roller 24 rotates synchronously with the rotation of the filter cartridge 21, the roller... 24 will roll along the top of the curved track 17. At this time, the filter cartridge 21 will drive the connecting shaft 25 to move up and down reciprocally in the cavity of the pretreatment cartridge 11, thereby shaking the impurities blocking the leakage holes on the wall of the filter cartridge 21 downwards. The filter holes on the inclined surface of the filter box 22 will allow airflow to pass through them due to the rotation of the filter box 22, and flush the impurities blocking the filter holes back into the cavity of the filter box 22. Then, the crossbar 28 and the cleaning brush 29 will also rotate with the rotation of the filter cartridge 21, thereby brushing off the impurities accumulated on the inner wall of the pretreatment cartridge 11. After the wastewater is pre-filtered, the water pump 13 is started to pump the wastewater in the pretreatment cylinder 11 into the connecting pipe 12, and then from the connecting pipe 12 into the sedimentation cylinder 14 for sedimentation. After the wastewater has settled in the sedimentation cylinder 14, the one-way valve at the bottom of the side wall of the sedimentation cylinder 14 is opened to discharge the settled water. The water discharged from the drain pipe can then be used. The sediment accumulated in the sedimentation cylinder 14 can be discharged from the slag discharge pipe 15 by opening the valve at the end of the slag discharge pipe 15.

[0041] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A wastewater filtration device for treating hazardous solid waste tailings, comprising a frame (10), wherein a pretreatment cylinder (11) is fixedly connected to one side of the top of the frame (10), characterized in that, Also includes: Top cover (18), the top cover (18) is movably snapped onto the top of the pretreatment cylinder (11), the top of the top cover (18) is fixedly connected to the eccentric part of the top, the bottom of the top cover (18) is slidably connected to the filter cylinder (21), the wall of the filter cylinder (21) is provided with multiple leakage holes, the bottom of the filter cylinder (21) is symmetrically fixedly connected to two filter boxes (22), the top of the filter cylinder (21) is symmetrically fixedly connected to two wheel frames (23), the wall of each wheel frame (23) is rotatably connected to a roller (24), the wall of each filter box (22) is provided with multiple filter holes, the bottom of the cavity of the filter cylinder (21) is fixedly connected to a connecting shaft (25), the wall of the connecting shaft (25) is slidably connected to a rotating shaft (27), the rotating shaft (27) is rotatably connected to the bottom of the top cover (18); A crossbar (28) is bolted to the bottom of the filter cartridge (21), and two cleaning brushes (29) are symmetrically fixed to both sides of the top cover (18). A sedimentation assembly is located at the top of the frame (10) and is used to settle the filtered water in the pretreatment cylinder (11).

2. The wastewater filtration device for treating hazardous solid waste tailings as described in claim 1, characterized in that, Each of the filter boxes (22) is a fan-shaped hollow box, and the filter holes on the wall of each filter box (22) are located on the inclined surface of the filter box (22).

3. The wastewater filtration device for treating hazardous solid waste tailings as described in claim 1, characterized in that, The connecting shaft (25) is cylindrical, and a groove (26) is provided at the top of the connecting shaft (25). The groove (26) is an inverted T-shaped groove, and the rotating shaft (27) is an inverted T-shaped rod. The rotating shaft (27) is slidably connected in the groove (26).

4. The wastewater filtration device for treating hazardous solid waste tailings as described in claim 1, characterized in that, Each of the wheel frames (23) is an inverted concave block, and each of the rollers (24) is rotatably connected to the bottom opening of the wheel frame (23). A curved rail (17) is detachably connected inside the cavity of the frame (10). The curved rail (17) is an arc-shaped ring, and the bottom of each of the rollers (24) is in contact with the top of the curved rail (17).

5. A wastewater filtration device for treating hazardous solid waste tailings as described in claim 1, characterized in that, The precipitation component includes: A sedimentation cylinder (14) is fixedly connected to the top of the frame (10) opposite to the pretreatment cylinder (11). A connecting pipe (12) is fixedly connected to the top of the side wall of the sedimentation cylinder (14). The other end of the connecting pipe (12) is connected to one side of the cavity of the pretreatment cylinder (11). A water pump (13) is fixedly connected to the middle section of the connecting pipe (12). A slag discharge pipe (15) is installed at the bottom of the cavity of the sedimentation cylinder (14). A valve is installed at the connection between the slag discharge pipe (15) and the sedimentation cylinder (14). A drain pipe is installed at the bottom of one side of the sedimentation cylinder (14). A one-way valve is installed at the drain pipe opening.

6. The wastewater filtration device for treating hazardous solid waste tailings as described in claim 1, characterized in that, A motor (20) is installed on the top of the top cover (18). The motor (20) drives the rotating shaft (27) to rotate through a coupling. Two pairs of ears (19) are symmetrically fixedly connected on both sides of the top cover (18). Each pair of ears (19) is equipped with a bolt on its top. Two fixed ears (16) are symmetrically fixedly connected on both sides of the top of the frame (10). The positions of the two fixed ears (16) are opposite to the positions of the two pairs of ears (19). Each fixed ear (16) has a threaded groove on its top that is suitable for the bolt on the wall of the pair of ears (19).

7. A wastewater filtration device for treating hazardous solid waste tailings as described in claim 1, characterized in that, The crossbar (28) is rectangular, and the two cleaning brushes (29) are erected in the cavity of the frame (10), with one side of the two cleaning brushes (29) in contact with the arc surface inside the cavity of the frame (10).

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