Mineral processing wastewater treatment device and method

Abstract

The present invention relates to the technical field of sewage treatment, and discloses a mineral processing wastewater treatment device and a method thereof, wherein the mineral processing wastewater treatment device comprises a filter screen, a guide rail arranged on the upper end of the filter screen, a guide groove opened at the upper end of the guide rail, a guide block slidably arranged in the guide groove, and also comprises a processing unit arranged on the guide block, wherein the processing unit comprises a dredging component arranged on the side wall of the guide block; by setting the dredging component, the trigger plate moves in the convex box, and when moving in the synchronous area, it will drive the nylon brush plate to move synchronously, and the nylon wire at the upper end of the nylon brush plate will be inserted into the mesh port of the corresponding filter screen when the nylon brush plate moves, so as to dredge the particles blocked inside the mesh port, and as the trigger plate continues to move, the nylon brush plate will first reset, and then the trigger plate will enter the voltage transformation area, and the trigger plate will compress the sewage inside the voltage transformation area, so that the sewage inside it backwashes the filter screen under the action of pressure.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and in particular to a mineral processing wastewater treatment device and method. Background Art

[0002] Mineral processing wastewater treatment is an important environmental protection measure in the process of mineral resource development. Its purpose is to reduce the discharge of harmful substances in wastewater and protect water bodies and the ecological environment. The composition of mineral processing wastewater is usually complex, including suspended matter, heavy metals, organic matter and mineral fragments. The treatment process requires a combination of multiple methods to remove these pollutants. The wastewater pretreatment stage is to remove larger particles and suspended matter in the wastewater. Before the wastewater enters the sedimentation tank, large particle impurities in the wastewater, especially larger mineral particles, are filtered through a screen to reduce the load on the subsequent treatment system.

[0003] Although the existing screen can effectively separate wastewater from particles, the following problems still exist: because the amount of wastewater is large and in a continuous working state during the screen filtration process, the staff cannot clean the impurities at the front of the screen being filtered, and it is not easy for the staff to clean the screen inside the sedimentation tank in time, which causes the filtered particles to accumulate at the front of the screen or get stuck in the mesh of the screen for a long time, causing the filter to be blocked and affecting the subsequent flow and treatment of wastewater. If the mesh opening of the screen is blocked on a large scale, the staff must stop the discharge of wastewater before cleaning the screen, which will seriously affect the wastewater treatment efficiency. In addition, the sedimentation tank is generally deep and the surrounding environment is harsh, and the safety risk of the staff during cleaning is relatively high. Therefore, it is necessary to design a wastewater treatment device that can automatically dredge and collect particles accumulated on the surface of the filter and blocked at the mesh opening of the filter without manual operation, ensuring that the screen is always in a clear state and will not affect the normal flow, screening and treatment of subsequent wastewater. Summary of the Invention

[0004] In view of the problem that when the mesh opening of the screen in the existing technology is blocked, the staff needs to stop the water treatment and enter the sedimentation tank to clear the screen, which affects the wastewater treatment efficiency and increases the safety risk of the staff during work. A mineral processing wastewater treatment device and method are proposed.

[0005] The present application provides a mineral processing wastewater treatment device and method, the purpose of which is: by setting a dredging component, the trigger plate moves in the convex box, and when moving in the synchronous area, it will drive the nylon brush plate to move synchronously. When the nylon brush plate moves, the nylon wire at the upper end will be inserted into the mesh port of the corresponding filter screen to dredge the particles blocked inside the mesh port. As the trigger plate continues to move, the nylon brush plate will first reset, and then the trigger plate will enter the voltage conversion area. The trigger plate compresses the sewage inside the voltage conversion area, so that the sewage inside the voltage conversion area backwashes the filter screen under the action of pressure, and flushes the dredged particles into the collection box for collection, preventing the filter screen from being blocked while automatically collecting and processing the impurity particles.

[0006] The technical solution of the present invention is: a mineral processing wastewater treatment device and method, comprising a filter screen, a guide rail disposed on the upper end of the filter screen, a guide groove provided at the upper end of the guide rail, a guide block slidably disposed in the guide groove, and a treatment unit disposed on the guide block, wherein the treatment unit includes a dredging component disposed on the side wall of the guide block;

[0007] The dredging component includes a mounting plate arranged on the side wall of the guide block, a convex box arranged at the lower end of the mounting plate, side closing plates arranged at both ends of the side walls of the convex box, two horizontal grooves respectively provided on the two side closing plates, a nylon brush plate arranged between the multiple horizontal grooves, a plurality of nylon threads arranged on the side wall of the nylon brush plate, solution nozzles are provided on the nylon brush plate and the side wall of the convex box, a trigger plate arranged inside the convex box, and a plurality of moving rods arranged on the side wall of the nylon brush plate, each of the moving rods being installed with a synchronization component;

[0008] The interior of the convex box includes a synchronization area and a voltage-changing area. The shape and size of the end face of the trigger plate are equal to those of the end face of the voltage-changing area. When the trigger plate moves in the synchronization area, it drives the nylon brush plate to move synchronously to clear impurities in the filter screen. When the trigger plate moves in the voltage-changing area, the impurities on the filter screen are flushed by the wastewater in the voltage-changing area. The upper end of the synchronization area is in an open state, the upper end of the voltage-changing area is in a closed state, and the upper end of the convex box is located below the surface of the wastewater.

[0009] Furthermore, the synchronization component includes a mounting groove on the side wall of the moving rod, a sliding block arranged in the mounting groove, a mounting shaft arranged on the sliding block, a triangular inclined plate arranged on the mounting shaft, a connecting plate arranged on the side wall of the triangular inclined plate, a buffer spring rod arranged between the inner wall of the mounting groove and the side wall of the sliding block, an auxiliary spring arranged between the side wall of the mounting groove and the connecting plate, a reset element is installed between the moving rod and the convex box, and a driving element is installed on the side wall of the trigger plate.

[0010] Furthermore, the reset element includes a reset spring rod provided at one end of the moving rod, and one end of the reset spring rod is fixedly connected to the side wall of the convex box.

[0011] Furthermore, the driving element includes a telescopic cylinder arranged on the outer wall of the convex box and a waterproof box arranged on the outer wall of the convex box. The telescopic cylinder is located inside the waterproof box, and the telescopic end of the telescopic cylinder slides through the side wall of the convex box and is fixedly connected to the side wall of the trigger plate.

[0012] Furthermore, the processing unit also includes a collecting component, which includes a supporting plate arranged on the side wall of the guide block, a collecting box arranged at the lower end of the supporting plate, a plurality of filter holes opened on the side wall of the collecting box, and a cover plate arranged on the side wall of the collecting box.

[0013] Furthermore, support plates are fixedly installed on both sides of the upper end of the guide rail, a reciprocating screw is installed between the two support plates, a threaded slider is fixedly installed on the upper end of the guide block, the threaded slider is threadedly installed on the reciprocating screw, a servo motor is fixedly installed at one end of the reciprocating screw, and the servo motor is fixedly installed above the guide rail.

[0014] Furthermore, a controller is provided at the upper end of the servo motor, and the servo motor and the telescopic cylinder are electrically connected to the controller. When the servo motor rotates five times, the telescopic end of the telescopic cylinder moves back and forth once.

[0015] Furthermore, a method for treating mineral processing wastewater comprises the following steps:

[0016] S1: When the wastewater is transported to the sedimentation tank, the filter screen filters out the solid impurities in the wastewater;

[0017] S2: Regularly start the servo motor and telescopic cylinder, and the dredging components dredge the impurities gathered at the front end of the filter or blocked at the mesh opening, and use pressure to flush the dredged impurities into the collection box for collection. After the filter is dredged, the staff will suck out the impurities in the collection box;

[0018] S3: Adjust the pH of the filtered wastewater entering the sedimentation tank;

[0019] S4: Use microorganisms to treat organic matter in water;

[0020] S5: Remove fine suspended solids from wastewater by filtration or adsorption;

[0021] S6: Use ultraviolet irradiation and other disinfection methods, and discharge the wastewater that meets the emission standards.

[0022] Beneficial effects of the present invention:

[0023] 1. By setting up the dredging components, the staff can regularly start the servo motor and the telescopic cylinder, control the overall position of the convex box through the servo motor, and drive the trigger plate to move in the convex box through the telescopic end of the telescopic cylinder. When the trigger plate moves in the synchronous area, the trigger plate drives the nylon brush plate to move synchronously through the triangular inclined plate. During the movement of the nylon brush plate, the nylon wire on its surface will be inserted into the corresponding filter mesh port to dredge the particles blocked at the mesh port, which is convenient for subsequent collection.

[0024] 2. By setting up a voltage-changing area, when the nylon wire dredges the particles in the mesh mouth, the trigger plate moves to the voltage-changing area, and the nylon brush plate resets at the same time. As the trigger plate continues to move, it can squeeze the sewage inside the voltage-changing area, and use the sewage to backwash the surface of the filter and flush it into the collection box to collect these particulate impurities, preventing the dredged particles from continuing to flow with the sewage and causing clogging of the filter. The filter can be dredged without stopping the sewage flow and without human intervention, effectively improving the sewage treatment efficiency.

[0025] 3. By first using nylon thread to unclog the filter mesh, and then backwashing the wastewater under pressure, the present invention can automatically unclog the filter mesh without affecting the normal filtration of subsequent wastewater. Furthermore, there is no need for workers to enter the sedimentation tank to clean the filter, effectively improving wastewater treatment efficiency and quality and reducing workers' workload. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the three-dimensional structure of a mineral processing wastewater treatment device from a first perspective of the present invention;

[0027] Figure 2 This is a schematic diagram of the third perspective structure of a mineral processing wastewater treatment device according to the present invention;

[0028] Figure 3 This is a schematic diagram of the top plan structure of a mineral processing wastewater treatment device according to the present invention;

[0029] Figure 4 This is a schematic structural diagram of a dredging component of a mineral processing wastewater treatment device according to the present invention;

[0030] Figure 5 This is a schematic diagram of the internal structure of a convex box of a mineral processing wastewater treatment device of the present invention;

[0031] Figure 6 This is a schematic diagram of the installation structure of a mobile rod of a mineral processing wastewater treatment device according to the present invention;

[0032] Figure 7 This is a structural schematic diagram of the synchronization area and the voltage transformation area of ​​a mineral processing wastewater treatment device of the present invention;

[0033] Figure 8 For the present invention Figure 7 Enlarged structural diagram at point A in the middle.

[0034] In the picture:

[0035] 1. Filter screen; 2. Guide rail; 3. Guide groove; 4. Guide block; 5. Mounting plate; 6. Convex box; 7. Side closing plate; 8. Reciprocating screw; 9. Threaded slider; 10. Horizontal groove; 11. Support plate; 12. Nylon brush plate; 13. Solution nozzle; 14. Trigger plate; 15. Moving rod; 16. Synchronous area; 17. Voltage conversion area; 18. Mounting groove; 19. Sliding block; 20. Mounting shaft; 21. Triangular inclined plate; 22. Connecting plate; 23. Buffer spring rod; 24. Auxiliary spring; 25. Reset spring rod; 26. Telescopic cylinder; 27. Waterproof box; 28. Loading plate; 29. ​​Collection box; 30. Cover plate. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0037] Example 1, reference Figures 1-6 , which is the first embodiment of the present invention, provides a mineral processing wastewater treatment device, including a filter screen 1, a guide rail 2 fixedly installed on the upper end of the filter screen 1, a guide groove 3 provided at the upper end of the guide rail 2, a guide block 4 slidably installed in the guide groove 3, and also includes a processing unit installed on the guide block 4, and the processing unit includes a dredging component installed on the side wall of the guide block 4.

[0038] The dredging components include a mounting plate 5 fixedly mounted on the side wall of the guide block 4, a convex box 6 fixedly mounted on the lower end of the mounting plate 5, a side closing plate 7 fixedly mounted on both ends of the side walls of the convex box 6, two horizontal grooves 10 respectively opened on the two side closing plates 7, a nylon brush plate 12 slidably mounted between the multiple horizontal grooves 10, multiple nylon threads fixedly mounted on the side wall of the nylon brush plate 12, solution nozzles 13 fixedly mounted on the nylon brush plate 12 and the side wall of the convex box 6, a trigger plate 14 slidably mounted inside the convex box 6, and multiple moving rods 15 fixedly mounted on the side wall of the nylon brush plate 12, each moving rod 15 is installed with a synchronization component.

[0039] The interior of the convex box 6 includes a synchronous area 16 and a voltage-changing area 17. The shape and size of the end face of the trigger plate 14 are equal to the shape and size of the end face of the voltage-changing area 17. When the trigger plate 14 moves in the synchronous area 16, it drives the nylon brush plate 12 to move synchronously to clear the impurities in the filter screen 1. When the trigger plate 14 moves in the voltage-changing area 17, the impurities on the filter screen 1 are flushed by the wastewater in the voltage-changing area 17. The upper end of the synchronous area 16 is in an open state, the upper end of the voltage-changing area 17 is in a closed state, and the upper end of the convex box 6 is located below the surface of the wastewater.

[0040] Specifically, the dredging component is used to dredge impurities that are blocked inside the mesh opening of the filter 1 to prevent large-scale blockage of the mesh opening of the filter 1, which affects the subsequent flow of wastewater. The nylon brush plate 12 is moved horizontally toward the filter 1 through the nylon wire on the nylon brush plate 12, so that the nylon wire can be inserted into the mesh opening of the filter 1. Because the nylon wire has a certain hardness and toughness, the nylon wire can dredge the impurities that are blocked inside the mesh opening during the insertion process, and push the impurities in the mesh opening out of the mesh opening of the filter 1.

[0041] However, using a simple nylon brush plate 12 to unclog the mesh opening of the filter 1 can only ensure a short period of dredging. If the impurities pushed out of the filter 1 during the resetting process of the nylon brush plate 12 may be blocked in the mesh opening again as the nylon brush plate 12 is reset, or if the pushed impurities are not cleaned in time, these impurities may clog the mesh opening of the filter 1 again during the flow of wastewater. Therefore, by designing a convex box 6 and dividing the interior of the convex box 6 into a synchronous area 16 and a voltage-transformation area 17, when the trigger plate 14 moves inside the convex box 6, it starts to slide in the synchronous area 16, which will drive the nylon brush plate 12 to move synchronously. When the nylon brush plate 12 moves in the horizontal direction, it can dredge and clean the mesh opening on the filter 1. After the dredging is completed, the trigger plate 14 just moves to the voltage-transformation area 17. At this time, the nylon brush plate 12 is reset, and the trigger plate 14 moves inside the voltage-transformation area 17. Because the voltage-transformation area 1 The size of the end face of 7 is equal to the shape and size of the end face of the trigger plate 14, so that when the trigger plate 14 moves inside the voltage-changing area 17, the trigger plate 14 will compress the wastewater inside the voltage-changing area 17, so that the wastewater inside the voltage-changing area 17 flushes the filter screen 1 under the action of squeezing, thereby achieving: when the nylon brush plate 12 is reset, the wastewater inside the voltage-changing area 17 just backwashes the filter screen 1, thereby effectively preventing the nylon brush plate 12 from bringing impurities back into the network port and causing blockage when it is reset.

[0042] To achieve the above functions, a synchronization component is required. The synchronization component can drive the nylon brush plate 12 to move synchronously when the trigger plate 14 slides in the synchronization area 16. When the trigger plate 14 moves to the voltage-changing area 17, the trigger plate 14 and the nylon brush plate 12 no longer contact each other. The trigger plate 14 continues to move in the horizontal direction while the nylon brush plate 12 resets. The specific structure of the synchronization component is as follows:

[0043] Reference Figure 7-Figure 8 The synchronization component includes a mounting groove 18 opened on the side wall of the moving rod 15, a sliding block 19 slidably installed in the mounting groove 18, a mounting shaft 20 fixedly installed on the sliding block 19, a triangular inclined plate 21 rotatably installed on the mounting shaft 20, a connecting plate 22 fixedly installed on the side wall of the triangular inclined plate 21, a buffer spring rod 23 fixedly installed between the inner wall of the mounting groove 18 and the side wall of the sliding block 19, an auxiliary spring 24 fixedly installed between the side wall of the mounting groove 18 and the connecting plate 22, a reset element is installed between the moving rod 15 and the convex box 6, and a driving element is installed on the side wall of the trigger plate 14.

[0044] The reset element includes a reset spring rod 25 fixedly mounted at one end of the travel rod 15, one end of which is fixedly connected to the side wall of the convex box 6. The drive element includes a telescopic cylinder 26 fixedly mounted on the outer wall of the convex box 6 and a waterproof box 27 fixedly mounted on the outer wall of the convex box 6. The telescopic cylinder 26 is located inside the waterproof box 27. The telescopic end of the telescopic cylinder 26 slides through the side wall of the convex box 6 and is fixedly connected to the side wall of the trigger plate 14.

[0045] Specifically, the synchronization component is used to achieve synchronous movement of the nylon brush plate 12 when the trigger plate 14 slides in the synchronization area 16. When the trigger plate 14 moves to the voltage-changing area 17, the trigger plate 14 and the nylon brush plate 12 are no longer in contact, and the trigger plate 14 continues to move in the horizontal direction while the nylon brush plate 12 is reset. The specific working principle is as follows: when the trigger plate 14 moves horizontally under the action of the telescopic end of the telescopic cylinder 26, the side wall of the triangular inclined plate 21 is on the movement trajectory of the trigger plate 14, so that when the trigger plate 14 moves, the triangular inclined plate 21 will be driven to move synchronously. During the movement, the triangular inclined plate 21 drives the nylon brush plate 12 to move synchronously through the moving rod 15. As the moving rod 15 moves, the triangular inclined plate 21 is squeezed by the inner wall of the convex box 6 and deflected along the installation axis 20 as the axis, and the deflection angle will increase with the increase of the horizontal movement distance of the moving rod 15. When the moving rod 15 just enters the inside of the voltage transformation area 17, the triangular inclined plate 21 just deflects to no longer contact with the trigger plate 14. At this time, the triangular inclined plate 21 will no longer be restricted by the trigger plate 14. At this time, the triangular inclined plate 21 is reset under the elastic force of the return spring rod 25, and the trigger plate 14 can continue to move inside the voltage transformation area 17, squeezing the sewage inside and backwashing the filter screen 1.

[0046] Example 2, reference Figure 1-Figure 5 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the processing unit also includes a collecting component, the collecting component includes a carrying plate 28 fixedly mounted on the side wall of the guide block 4, a collecting box 29 fixedly mounted on the lower end of the carrying plate 28, a plurality of filter holes are opened on the side wall of the collecting box 29, and a cover plate 30 fixedly mounted on the side wall of the collecting box 29.

[0047] Specifically, the inlet channel of the collection box 29 is configured in a spiral shape, and a plurality of filter holes are provided on the sidewall of the collection box 29, and the filter holes are of the same size as the mesh size of the filter screen 1. The purpose of the spiral shape of the collection box 29 is that when the trigger plate 14 moves within the voltage-changing area 17 and backwashes the wastewater therein, the high flow rate of the wastewater can carry the dredged particulate impurities into the collection box 29. The spiral shape of the channel can prevent the particulate impurities entering the collection box 29 from flowing out, thereby retaining most of the particulate impurities in the collection box 29 for collection, making it easier for subsequent staff to handle these collected impurities without clogging the filter screen 1, effectively improving the dredging efficiency and quality of the filter screen 1. The filter holes provided on the sidewall of the collection box 29 can ensure that the sewage entering the collection box 29 can flow out normally, while retaining the particulate impurities in the collection box 29.

[0048] The remaining structures are the same as those of Example 1.

[0049] Example 3, reference Figure 1 , which is the third embodiment of the present invention, differs from the second embodiment in that: support plates 11 are fixedly mounted on both sides of the upper end of the guide rail 2, a reciprocating screw 8 is mounted between the two support plates 11, a threaded slider 9 is fixedly mounted on the upper end of the guide block 4, the threaded slider 9 is threadedly mounted on the reciprocating screw 8, and a servo motor (not shown) is fixedly mounted on one end of the reciprocating screw 8, and the servo motor is fixedly mounted on the guide rail 2. A controller (not shown) is provided on the upper end of the servo motor, and the servo motor and telescopic cylinder 26 are electrically connected to the controller. For every five rotations of the servo motor, the telescopic end of the telescopic cylinder 26 moves back and forth one time.

[0050] Specifically, the servo motor drives the entire device to move intermittently along the filter 1 by rotating the reciprocating screw 8, and cooperates with the telescopic cylinder 26 to clean and dredge impurities accumulated or blocked on the filter 1. For every five rotations of the servo motor, the distance moved by the guide block 4 is equal to the width of the convex box 6, so that the device can clean and dredge every area of ​​the filter 1.

[0051] The remaining structures are the same as those of Example 2.

[0052] Example 4, which is the fourth embodiment of the present invention, discloses a method for treating mineral processing wastewater, comprising the following steps:

[0053] S1: When the wastewater is transported to the sedimentation tank, the filter screen 1 filters the solid impurities in the wastewater.

[0054] S2: Regularly turn on the servo motor and the telescopic cylinder 26. When the trigger plate 14 moves in the horizontal direction under the action of the telescopic end of the telescopic cylinder 26, the side wall of the triangular inclined plate 21 is on the motion trajectory of the trigger plate 14. When the trigger plate 14 is in motion, it will drive the triangular inclined plate 21 to move synchronously. During the motion of the triangular inclined plate 21, the nylon brush plate 12 is driven to move synchronously by the moving rod 15 and the impurity particles blocked at the mesh opening of the filter screen 1 are cleared through the nylon thread and pushed out of the mesh opening. As the moving rod 15 moves, the triangular inclined plate 21 moves in the horizontal direction. Under the pressure of the inner wall of the convex box 6, it deflects along the mounting axis 20, and the deflection angle increases as the horizontal movement distance of the moving rod 15 increases. When the moving rod 15 just enters the inside of the voltage-changing area 17, the triangular inclined plate 21 just deflects to the point where it is no longer in contact with the trigger plate 14. At this time, the triangular inclined plate 21 is no longer restricted by the trigger plate 14. At this time, the triangular inclined plate 21 is reset under the elastic force of the return spring rod 25, and the trigger plate 14 can continue to move inside the voltage-changing area 17, squeezing the sewage therein and backwashing the filter screen 1.

[0055] The backwash wastewater flows at high speed and brings the cleared particulate impurities into the collection box 29. Because the channel of the collection box 29 is set to a spiral shape, after the particulate impurities enter the collection box 29, most of the particulate impurities remain in the collection box 29 and will not accumulate again at the filter screen 1 to cause blockage of the mesh port. Every time the device cleans the filter screen 1, the staff can collect and process the particulate impurities in the collection box 29 through the cover plate 30.

[0056] S3: Adjust the acidity and alkalinity of the wastewater entering the sedimentation tank for filtration.

[0057] S4: Use microorganisms to treat organic matter in water.

[0058] S5: Remove fine suspended matter from wastewater by filtration or adsorption.

[0059] S6: Use ultraviolet irradiation and other disinfection methods, and discharge the wastewater that meets the emission standards.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A mineral processing wastewater treatment device for filtering impurities in wastewater, comprising a filter screen, a guide rail disposed above the filter screen, a guide groove provided at the upper end of the guide rail, and a guide block slidably disposed in the guide groove, characterized in that: It also includes a processing unit arranged on the guide block, wherein the processing unit includes a dredging component arranged on the side wall of the guide block; The dredging component includes a mounting plate arranged on the side wall of the guide block, a convex box arranged at the lower end of the mounting plate, side closing plates arranged at both ends of the side walls of the convex box, two horizontal grooves respectively provided on the two side closing plates, a nylon brush plate arranged between the multiple horizontal grooves, a plurality of nylon threads arranged on the side wall of the nylon brush plate, solution nozzles are provided on the nylon brush plate and the side wall of the convex box, a trigger plate arranged inside the convex box, and a plurality of moving rods arranged on the side wall of the nylon brush plate, each of the moving rods being installed with a synchronization component; The interior of the convex box includes a synchronization area and a voltage-changing area. The shape and size of the end face of the trigger plate are equal to those of the end face of the voltage-changing area. When the trigger plate moves in the synchronization area, it drives the nylon brush plate to move synchronously to clear impurities in the filter screen. When the trigger plate moves in the voltage-changing area, the impurities on the filter screen are flushed by the wastewater in the voltage-changing area. The upper end of the synchronization area is in an open state, the upper end of the voltage-changing area is in a closed state, and the upper end of the convex box is located below the surface of the wastewater.

2. A mineral processing wastewater treatment device according to claim 1, characterized in that: The synchronization assembly includes a mounting groove opened on the side wall of the moving rod, a sliding block arranged in the mounting groove, a mounting shaft arranged on the sliding block, a triangular inclined plate arranged on the mounting shaft, a connecting plate arranged on the side wall of the triangular inclined plate, a buffer spring rod arranged between the inner wall of the mounting groove and the side wall of the sliding block, an auxiliary spring arranged between the side wall of the mounting groove and the connecting plate, a reset element is installed between the moving rod and the convex box, and a driving element is installed on the side wall of the trigger plate.

3. A mineral processing wastewater treatment device according to claim 2, characterized in that: The reset element comprises a reset spring rod arranged at one end of the moving rod, and one end of the reset spring rod is fixedly connected to the side wall of the convex box.

4. A mineral processing wastewater treatment device according to claim 3, characterized in that: The driving element includes a telescopic cylinder arranged on the outer wall of the convex box and a waterproof box arranged on the outer wall of the convex box. The telescopic cylinder is located inside the waterproof box. The telescopic end of the telescopic cylinder slides through the side wall of the convex box and is fixedly connected to the side wall of the trigger plate.

5. The mineral processing wastewater treatment device according to claim 4, characterized in that: The processing unit also includes a collecting component, which includes a supporting plate arranged on the side wall of the guide block, a collecting box arranged at the lower end of the supporting plate, a plurality of filter holes opened on the side wall of the collecting box, and a cover plate arranged on the side wall of the collecting box.

6. The mineral processing wastewater treatment device according to claim 5, characterized in that: Support plates are fixedly installed on both sides of the upper end of the guide rail, a reciprocating screw is installed between the two support plates, a threaded slider is fixedly installed on the upper end of the guide block, and the threaded slider is threadedly installed on the reciprocating screw, a servo motor is fixedly installed at one end of the reciprocating screw, and the servo motor is fixedly installed above the guide rail.

7. The mineral processing wastewater treatment device according to claim 6, characterized in that: A controller is provided at the upper end of the servo motor. The servo motor and the telescopic cylinder are electrically connected to the controller. When the servo motor rotates five times, the telescopic end of the telescopic cylinder moves back and forth once.

8. A method for treating mineral processing wastewater, using a mineral processing wastewater treatment device according to any one of claims 6 to 7, characterized in that: The following steps are involved: When the wastewater is transported to the sedimentation tank, the filter screen filters out the solid impurities in the wastewater; The servo motor and telescopic cylinder are regularly turned on, and the dredging components dredge the impurities gathered at the front end of the filter or blocked at the mesh opening, and the dredged impurities are flushed into the collection box by pressurizing for collection. After the filter is dredged, the staff will suck out the impurities in the collection box; Adjust the acidity and alkalinity of the wastewater entering the sedimentation tank; Use microorganisms to treat organic matter in water; Remove fine suspended matter from wastewater by filtration or adsorption; Disinfection treatment is carried out using ultraviolet irradiation and other methods, and wastewater that meets emission standards is discharged.

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