Tailing wastewater filtering device

By designing a tailings wastewater filtration device for buffer boxes and filtering pipes, the problems of short service life and short maintenance cycle in the prior art are solved, and the service life of the filter and maintenance cycle are extended, and the wastewater filtration effect is improved.

CN222550312UActive Publication Date: 2025-03-04CHINA COAL JIAFENG (HUNAN) ENVIRONMENTAL PROTECTION TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202420788448.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-16
Publication Date
2025-03-04
Estimated Expiration
2034-04-16

AI Technical Summary

Technical Problem

During the filtering process of the existing tailings wastewater filtration device, the filter life is shortened due to the wastewater directly impacting the filter, resulting in a short service life and a short maintenance cycle, which affects the filtration effect.

Method used

A tailings wastewater filtration device is designed, including a buffer box and a filtering pipe. The wastewater first enters the bottom of the buffer box to accumulate, and then passes through the connection port and enters the filtering pipe. It is filtered through multiple filters to avoid direct impact on the filter. At the same time, particulate matter is deposited in the buffer box to reduce the frequency of filter maintenance.

Benefits of technology

It extends the service life and maintenance cycle of the filter, improves the wastewater filtration effect, and reduces the frequency of equipment shutdown and maintenance.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222550312U_ABST
    Figure CN222550312U_ABST
Patent Text Reader

Abstract

The utility model discloses a tailing wastewater filtering device which comprises a buffer tank, a water inlet pipe is vertically arranged at the top end of the buffer tank, a slag discharge pipe is vertically arranged at the bottom end of the buffer tank, a first valve is arranged on the slag discharge pipe, a first connector is horizontally arranged on the side wall of the buffer tank in a penetrating manner, and the first connector is higher than the slag discharge pipe; the filtering through pipe is fixed on the outer side of the first connecting port and is horizontally distributed; the filter assembly is detachably arranged in the filter through pipe, the filter assembly comprises a plurality of filter screens, the filter screens are vertically distributed, and the filter screens are arranged in the length direction of the filter through pipe. According to the utility model, the buffer tank is arranged, so that the filter screen cannot be directly impacted by waste water, the service life of the filter screen is prolonged, and particulate matters attached to the filter screen can be reduced by depositing a part of particulate matters in the waste water through the buffer tank, so that the normal service time of the filter screen is prolonged, and the maintenance period is prolonged.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a tailings wastewater filtering device. Background Art

[0002] The use of tailings wastewater filtration devices is relatively common in the field of wastewater filtration technology. Tailings wastewater filtration devices are equipment used to treat and filter tailings wastewater. Their main function is to filter solid particles and chemical substances in tailings wastewater to ensure that the treated water quality meets relevant standards. When the existing tailings wastewater filtration devices use the filter screen to filter wastewater, the wastewater generally falls directly onto the surface of the filter screen through a water pipe, which will have a greater impact on the surface of the filter screen, accelerate the damage rate of the filter screen, and reduce the service life of the filter screen. At the same time, the deformed filter screen will affect the filtering effect of impurities in the wastewater. In addition, after the equipment has been used for a period of time, the waste residue intercepted by the filter screen accumulates on the surface of the filter screen, which seriously affects the filtering effect and requires frequent shutdown for maintenance. Therefore, there is an urgent need for a tailings wastewater filtration device with a long service life and a longer maintenance cycle. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a tailings wastewater filtering device, which can increase the service life of the filter screen and extend the maintenance cycle of the filter screen.

[0004] The tailings wastewater filtering device according to the embodiment of the utility model comprises:

[0005] A buffer box, with a water inlet pipe vertically arranged at the top and a slag discharge pipe vertically arranged at the bottom, the slag discharge pipe being provided with a first valve, and a first connecting port horizontally penetrating the side wall of the buffer box, the first connecting port being higher than the slag discharge pipe;

[0006] A filter tube is fixed outside the first connection port and is horizontally distributed;

[0007] The filter assembly is detachably disposed in the filter tube, and the filter assembly includes a plurality of filter screens, which are vertically distributed and arranged along the length direction of the filter tube.

[0008] The tailings wastewater filtering device according to the embodiment of the utility model has at least the following beneficial effects:

[0009] When in use, the first valve on the slag discharge pipe is kept normally closed, and the tailings wastewater to be treated is added to the buffer box through the water inlet pipe. After entering the buffer box, the tailings wastewater will first impact the bottom of the buffer box and accumulate at the bottom of the buffer box. After the wastewater overflows the first connection port, it begins to enter the filter pipe, and passes through multiple filter screens in sequence and is discharged from the other end of the filter pipe. In this process, the wastewater will not directly impact the filter screen, which can increase the service life of the filter screen; in addition, since the filter pipe is horizontally arranged on the side wall of the buffer box and higher than the slag discharge pipe, some of the particles in the wastewater can also be deposited at the bottom of the buffer box, which can reduce the particles attached to the surface of the filter screen and reduce the frequency of filter screen maintenance, that is, extend the maintenance cycle. When the waste residue at the bottom of the buffer box reaches a certain amount, the first valve can be opened to discharge. The tailings wastewater filtration device of this embodiment, by setting a buffer box, can prevent the wastewater from directly impacting the filter screen, thereby increasing the service life of the filter screen, and can deposit part of the particles in the wastewater through the buffer box, reducing the particles attached to the filter screen, thereby extending the normal use time of the filter screen and extending the maintenance cycle.

[0010] According to some embodiments of the present invention, the filter holes of the plurality of filter screens decrease in diameter in a direction away from the buffer box.

[0011] According to some embodiments of the utility model, an installation opening is provided on the upper side wall of the filter tube, and the filter assembly includes a mounting frame, which is detachably inserted into the installation opening and sealed with the filter tube, and a frame is detachably provided on the outer periphery of the filter screen, and the frame is detachably mounted on the mounting frame.

[0012] According to some embodiments of the utility model, the frame is slidably arranged on the mounting frame along the width direction of the filter tube, and an elastic positioning mechanism is provided between the mounting frame and the frame, and the elastic positioning mechanism is used to abut the frame to limit the sliding of the frame relative to the mounting frame.

[0013] According to some embodiments of the utility model, the elastic positioning mechanism is configured as an elastic ball head plunger, which is installed on the mounting bracket. The elastic ball head plunger includes a ball head that can elastically move along the length direction of the filter tube, and a snap-in hole is provided on the frame for the ball head to be snapped in.

[0014] According to some embodiments of the utility model, the elastic ball head plunger includes a mounting tube for mounting the ball head, and a stud is provided at one end of the mounting tube away from the ball head. The stud is passed through the mounting frame and is locked and fixed by a locking nut.

[0015] According to some embodiments of the utility model, the mounting frame is provided with a horizontally distributed bottom plate and top plate and a support rod connected between the bottom plate and the top plate, the top plate is embedded in the mounting opening to close the mounting opening, the upper surface of the bottom plate and the lower surface of the top plate are provided with limiting grooves corresponding to the frame, which are respectively used for the upper and lower ends of the frame to be embedded so as to slide and install the frame, and the limiting grooves penetrate along the width direction of the filter tube.

[0016] According to some embodiments of the utility model, a sealing plate is horizontally fixed on the upper side of the top plate, the sealing plate abuts against the upper end surface of the filter tube and is connected to the filter tube via fasteners, and a sealing ring groove is provided on the lower surface of the sealing plate, a sealing gasket is embedded in the sealing ring groove.

[0017] According to some embodiments of the utility model, a reaction box and a medicine box are further included, wherein the medicine box is connected to the reaction box through a drug delivery tube, a second connecting port is provided on the side wall of the reaction box, one end of the filter tube away from the buffer box is fixed to the outside of the second connecting port, a drain pipe is provided at the bottom of the reaction box, and a second valve is provided on the drain pipe.

[0018] According to some embodiments of the utility model, a stirring mechanism is further included, wherein the stirring mechanism includes a stirring member and a driving member which are transmission-connected, the stirring member is rotatably disposed in the reaction box, and the driving member is disposed outside the reaction box.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0021] Figure 1 It is a schematic diagram of the installation structure of an embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the filter tube of an embodiment of the utility model;

[0023] Figure 3 It is a schematic diagram of the installation structure of the filter pipe and the filter assembly of the embodiment of the utility model;

[0024] Figure 4 It is a schematic diagram of the installation structure of the filter screen and the installation frame according to an embodiment of the utility model.

[0025] Figure Number:

[0026] Buffer box 100, first connection port 101, water inlet pipe 110, slag discharge pipe 120, first valve 130;

[0027] Filter through pipe 200, installation port 201;

[0028] Filter assembly 300, filter screen 310, frame 311, snap-in hole 312, mounting frame 320, bottom plate 321, top plate 322, support rod 323, limit groove 324, sealing plate 325, sealing ring groove 326, sealing pad 327, mounting block 328;

[0029] Elastic ball plunger 400, ball head 410, mounting tube 420, stud 421, spring 430;

[0030] Reaction box 500, second connection port 501, drain pipe 510, second valve 520;

[0031] Medicine box 600, medicine delivery tube 610;

[0032] Stirring mechanism 700 , stirring member 710 , driving member 720 . DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0034] In the description of the present invention, it should be understood that descriptions involving orientation, such as orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0036] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0037] Reference Figures 1 to 4As shown, a tailings wastewater filtering device according to an embodiment of the utility model comprises: a buffer box 100 , a filtering pipe 200 , and a filtering assembly 300 .

[0038] A water inlet pipe 110 is provided at the top of the buffer box 100, and the tailings wastewater to be treated is added into the buffer box 100 through the water inlet pipe 110. A slag discharge pipe 120 is provided at the bottom of the buffer box 100. The water inlet pipe 110 and the slag discharge pipe 120 are both vertically arranged. A first valve 130 is provided on the slag discharge pipe 120. The first valve 130 is used to control the on and off of the slag discharge pipe 120. The first valve 130 can be a manual valve, and the first valve 130 is in a normally closed state. In addition, a first connecting port 101 is horizontally penetrated on the side wall of the buffer box 100, and the first connecting port 101 is higher than the slag discharge pipe 120 and lower than the water inlet pipe 110.

[0039] The filter tube 200 is fixed outside the first connection port 101 and is horizontally distributed, and both ends of the filter tube 200 are open ends.

[0040] The filter assembly 300 is detachably disposed in the filter tube 200. The filter assembly 300 includes a plurality of filter screens 310, which are vertically distributed and arranged along the length direction of the filter tube 200, for filtering the tailings wastewater. Specifically, the filter holes of the plurality of filter screens 310 decrease in diameter in a direction away from the buffer tank 100, thereby filtering and purifying the tailings wastewater in stages, and the purified water flows out from one end of the filter tube 200 away from the buffer tank 100. Obviously, the plurality of filter screens 310 divide the inner cavity of the filter tube 200 into a plurality of cavities spaced apart along the length direction of the filter tube 200.

[0041] When in use, the first valve 130 on the slag discharge pipe 120 remains normally closed, and the tailings wastewater to be treated is added to the buffer box 100 through the water inlet pipe 110. After entering the buffer box 100, the tailings wastewater will first impact the bottom of the buffer box 100 and accumulate at the bottom of the buffer box 100. After the wastewater overflows the first connecting port 101, it begins to enter the filter pipe 200, and passes through multiple filter screens 310 in sequence before being discharged from the other end of the filter pipe 200. During this process, the wastewater will not directly impact the filter screen 310, which can increase the service life of the filter screen 310; in addition, since the filter pipe 200 is horizontally arranged on the side wall of the buffer box 100 and is higher than the slag discharge pipe 120, some of the particulate matter in the wastewater can also be deposited at the bottom of the buffer box 100, which can reduce the particulate matter attached to the surface of the filter screen 310 and reduce the frequency of maintenance of the filter screen 310, that is, extend the maintenance cycle. When the waste residue at the bottom of the buffer box 100 reaches a certain amount, the first valve 130 can be opened to discharge it. The tailings wastewater filtration device of this embodiment, by providing a buffer box 100, can prevent the wastewater from directly impacting the filter 310, thereby increasing the service life of the filter 310, and can deposit a portion of the particulate matter in the wastewater through the buffer box 100 to reduce the particulate matter attached to the filter 310, thereby extending the normal use time of the filter 310 and extending the maintenance cycle.

[0042] It can be understood that the filter duct 200 is a square tube, and the upper end side wall of the filter duct 200 is provided with a mounting port 201, and the filter assembly 300 includes a mounting frame 320, and the mounting frame 320 is detachably inserted in the mounting port 201 and is sealed and connected to the filter duct 200, and multiple filter screens 310 can be detachably arranged on the mounting frame 320. Specifically, the outer periphery of the filter screen 310 is provided with a frame 311, and the frame 311 is detachably arranged on the mounting frame 320. Through the above arrangement, the filter screen 310 can be removed as a whole by removing the mounting frame 320, and then the filter screen 310 can be cleaned and maintained or removed individually for replacement. In addition, after removing the mounting frame 320, the waste residue deposited in the filter duct 200 can also be cleaned from the mounting port 201.

[0043] It is understood that the frame 311 is slidably arranged on the mounting frame 320 along the width direction of the filter tube 200, the width direction of the filter tube 200 is horizontal, and an elastic positioning mechanism is arranged between the mounting frame 320 and the frame 311, and the elastic positioning mechanism is used to abut the frame 311 to limit the sliding of the frame 311 relative to the mounting frame 320, so as to position the frame 311 relative to the mounting frame 320, and the filter 310 is easy to disassemble and assemble. It is understood that the size of the frame 311 of the filter 310 along the width direction of the filter tube 200 is the same as the width of the inner cavity of the filter tube 200, that is, in the use state, the two ends of the frame 311 of the filter 310 can be limited by the inner wall of the width direction of the filter tube 200, and the setting of the elastic positioning mechanism is to prevent the frame 311 from moving randomly during the process of disassembling and assembling the mounting frame 320, causing the filter 310 to be separated from the mounting frame 320 or collide with other structures, so as to avoid damage to the filter 310.

[0044] It can be understood that the elastic positioning mechanism is configured as an elastic ball plunger 400, which is mounted on the mounting frame 320. The elastic ball plunger 400 includes a mounting cylinder 420 and a spring 430 and a ball head 410 disposed in the mounting cylinder 420. The mounting cylinder 420 is distributed along the length direction of the filter tube 200, and the spring 430 and the ball head 410 are relatively distributed along the length direction of the filter tube 200. The ball head 410 is located on the side of the spring 430 close to the frame 311. Obviously, the ball head 410 is located on the side of the spring 430 close to the frame 311. 10 can be elastically movable along the length direction of the filter tube 200. In addition, a snap-in hole 312 is provided on the frame 311 for the ball head 410 to snap in, thereby limiting the sliding of the frame 311 relative to the mounting frame 320. With the above structure, the edge of the frame 311 can be used to automatically push the ball head 410 when the frame 311 is installed. When the ball head 410 is aligned with the snap-in hole 312, the ball head 410 will automatically fit into the snap-in hole 312 under the action of the spring 430, and the frame 311 is installed very conveniently. In some specific embodiments, a stud 421 is coaxially provided at one end of the mounting tube 420 away from the ball head 410. The stud 421 is inserted into the mounting frame 320 and is locked and fixed by a locking nut 422. Specifically, a mounting block 328 is provided on the mounting frame 320. The stud 421 is inserted into the mounting block 328 and is locked and fixed by a locking nut 422. The above arrangement facilitates the disassembly and assembly of the elastic ball head plunger 400.

[0045] The cam 322 is provided with a plurality of support rods 323 connected to the bottom plate 321 and the top plate 322, and the support rods 323 are connected to the bottom plate 321 and the top plate 322. The support rods 323 are provided with four support rods 323, which are respectively located at the four corners of the bottom plate 321. The bottom plate 321 is located at the lower side of the top plate 322. The bottom plate 321 is supported on the inner bottom wall of the filter tube 200, and the top plate 322 is embedded in the mounting opening 201 to close the mounting opening 201. The upper surface of the bottom plate 321 and the lower surface of the top plate 322 are provided with limiting grooves 324 corresponding to the frame 311. The limiting grooves 324 on the upper and lower sides are respectively used for the upper and lower ends of the frame 311 to be embedded so as to slide the frame 311. The limiting grooves 324 pass through the width direction of the filter tube 200, that is, the frame 311 can be slid out of the limiting grooves 324. The above arrangement can realize the sliding installation of the frame 311, and the structure is simple and practical. In some specific embodiments, two elastic ball plungers 400 are correspondingly disposed on the frame 311 of a filter screen 310 and are respectively installed on the bottom plate 321 and the top plate 322 .

[0046] It can be understood that a sealing plate 325 is horizontally fixed on the upper side of the top plate 322, the sealing plate 325 abuts against the upper end surface of the filter tube 200 and is connected to the filter tube 200 through fasteners, and a sealing ring groove 326 is provided on the lower surface of the sealing plate 325, and a sealing gasket 327 is embedded in the sealing ring groove 326 to prevent waste water from seeping out from the installation gap. Specifically, extension plates are provided on opposite sides of the upper end of the filter tube 200 along its width direction, and the sealing plate 325 is attached to the two extension plates and bolted to the two extension plates respectively.

[0047] It can be understood that the tailings wastewater filtration device also includes a reaction box 500 and a reagent box 600. The reagent box 600 is connected to the reaction box 500 through a drug delivery tube 610. The reagent box 600 is used to add chemical agents into the reaction box 500. A second connecting port 501 is provided on the side wall of the reaction box 500. One end of the filter pipe 200 away from the buffer box 100 is fixed to the outside of the second connecting port 501, that is, the buffer box 100 and the reaction box 500 are connected to each other through the filter pipe 200. The bottom of the reaction box 500 is provided with a drain pipe 510, and the drain pipe 510 is provided with a second valve 520. When in use, the wastewater filtered by the filter screen 310 will be discharged into the reaction box 500 from the second connection port 501. Chemical agents are added into the reaction box 500 through the reagent box 600, which can react with harmful substances in the wastewater, thereby further purifying the harmful substances in the wastewater and improving the wastewater treatment effect. The evolved wastewater is then discharged from the drain pipe 510. Specifically, the second valve 520 adopts a flow regulating valve, which is convenient for regulating the flow. Since wastewater treatment is usually carried out continuously, and the mixing of chemical agents and wastewater also takes time, the second valve 520 is set as a flow regulating valve. It only needs to control the flow rate, so that it will not affect the wastewater treatment efficiency and provide sufficient time for the mixing of chemical agents and wastewater.

[0048] It can be understood that the tailings wastewater filtration device also includes a stirring mechanism 700, which includes a stirring member 710 and a driving member 720 that are transmission-connected. The stirring member 710 is rotatably arranged in the reaction box 500, and the driving member 720 is arranged outside the reaction box 500. The stirring mechanism 700 is arranged to make the wastewater and the chemical agent mix more quickly. Specifically, the stirring member 710 includes a stirring shaft and stirring blades, and the driving member 720 is arranged as a motor. This is a conventional technology and will not be elaborated on here.

[0049] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A tailings wastewater filtration device, characterized in that: include: A buffer box (100) is provided with a water inlet pipe (110) vertically at the top and a slag discharge pipe (120) vertically at the bottom, the slag discharge pipe (120) is provided with a first valve (130), and a first connecting port (101) is provided horizontally through the side wall of the buffer box (100), the first connecting port (101) is higher than the slag discharge pipe (120); A filtering tube (200) is fixed to the outside of the first connecting port (101) and is horizontally distributed; The filter assembly (300) is detachably disposed in the filter tube (200), and the filter assembly (300) comprises a plurality of filter screens (310). The filter screens (310) are vertically distributed, and the plurality of filter screens (310) are arranged along the length direction of the filter tube (200).

2. The tailings wastewater filtration device according to claim 1, characterized in that: The filter holes of the plurality of filter screens (310) have diameters that decrease in sequence in a direction away from the buffer box (100).

3. The tailings wastewater filtration device according to claim 1, characterized in that: The upper side wall of the filter tube (200) is provided with a mounting opening (201); the filter assembly (300) comprises a mounting frame (320); the mounting frame (320) is detachably inserted into the mounting opening (201) and is sealed to the filter tube (200); the outer periphery of the filter screen (310) is provided with a frame (311); the frame (311) is detachably arranged on the mounting frame (320).

4. The tailings wastewater filtration device according to claim 3, characterized in that: The frame (311) is slidably arranged on the mounting frame (320) along the width direction of the filter tube (200), and an elastic positioning mechanism is provided between the mounting frame (320) and the frame (311), and the elastic positioning mechanism is used to abut against the frame (311) to limit the sliding of the frame (311) relative to the mounting frame (320).

5. The tailings wastewater filtration device according to claim 4, characterized in that: The elastic positioning mechanism is configured as an elastic ball plunger (400), the elastic ball plunger (400) being mounted on the mounting frame (320), the elastic ball plunger (400) comprising a ball head (410) that can be elastically movable along the length direction of the filter tube (200), and a snap-in hole (312) being provided on the frame (311) for snapping the ball head (410) therein.

6. The tailings wastewater filtering device according to claim 5, characterized in that: The elastic ball plunger (400) comprises a mounting tube (420) for mounting the ball head (410), and a stud (421) is provided at one end of the mounting tube (420) away from the ball head (410). The stud (421) is passed through the mounting frame (320) and is locked and fixed by a locking nut (422).

7. The tailings wastewater filtration device according to any one of claims 3 to 5, characterized in that: The mounting frame (320) is provided with a bottom plate (321) and a top plate (322) which are horizontally distributed, and a support rod (323) connected between the bottom plate (321) and the top plate (322); the top plate (322) is embedded in the mounting opening (201) to close the mounting opening (201); the upper surface of the bottom plate (321) and the lower surface of the top plate (322) are both provided with limiting grooves (324) corresponding to the frame (311), which are respectively used for the upper and lower ends of the frame (311) to be embedded so as to slide and install the frame (311); the limiting grooves (324) penetrate along the width direction of the filter duct (200).

8. The tailings wastewater filtering device according to claim 7, characterized in that: A sealing plate (325) is horizontally fixed on the upper side of the top plate (322); the sealing plate (325) abuts against the upper end surface of the filter tube (200) and is connected to the filter tube (200) via a fastener; a sealing ring groove (326) is provided on the lower surface of the sealing plate (325); a sealing gasket (327) is embedded in the sealing ring groove (326).

9. The tailings wastewater filtering device according to claim 1, characterized in that: It also includes a reaction box (500) and a medicine box (600), wherein the medicine box (600) is connected to the reaction box (500) via a drug delivery tube (610), a second connection port (501) is provided on the side wall of the reaction box (500), one end of the filter tube (200) away from the buffer box (100) is fixed to the outside of the second connection port (501), a drain pipe (510) is provided at the bottom of the reaction box (500), and a second valve (520) is provided on the drain pipe (510).

10. The tailings wastewater filtering device according to claim 9, characterized in that: The invention also comprises a stirring mechanism (700), wherein the stirring mechanism (700) comprises a stirring member (710) and a driving member (720) which are transmission-connected, wherein the stirring member (710) is rotatably disposed in the reaction box (500), and the driving member (720) is disposed outside the reaction box (500).