A treatment system for acidic mine wastewater based on electrocoagulation.

Abstract

This invention discloses an acidic mine wastewater treatment system based on electrocoagulation, belonging to the field of acidic mine wastewater treatment technology. It includes an equalization tank connected to a sedimentation tank via pipelines, and further includes a lifting mechanism, a rotating mechanism, and an energizing mechanism. This invention utilizes electrocoagulation, with aluminum, iron, or aluminum / iron mixed electrodes as the primary electrode materials. This method demonstrates significant removal efficiency for heavy metals in acidic mine wastewater (AMD), and also exhibits a synergistic removal effect on high concentrations of sulfate ions. During the electrocoagulation reaction, the pH of the water rises to 6-7, simultaneously producing flocculated precipitates containing metal oxides. These metal oxides are not released back into the receiving water body. Furthermore, electrocoagulation offers advantages such as ease of operation and high effluent quality. Compared to conventional neutralization methods, the precipitates produced by electrocoagulation are more compact, and the metal purity is higher, making them easier to recover and reuse, thus facilitating the treatment of acidic mine wastewater.

Description

Technical Field

[0001] This invention relates to the field of acidic mine wastewater treatment technology, specifically an acidic mine wastewater treatment system based on electrocoagulation. Background Technology

[0002] Acidic mine wastewater, containing high concentrations of metal ions, is a significant source of water and soil pollution in mining areas and has become a major global environmental concern requiring urgent solutions. Mine waste reacts with host rocks, surface water, and groundwater to produce acidic mine wastewater (AMD), characterized by low pH (2-5) and high metal ion concentrations. AMD often causes severe damage to the surrounding water and soil environment, not only destroying aquatic organisms, land, and vegetation, leading to aquatic death, eutrophication, and soil acidification, but also seriously threatening human health. Metal ions (such as lead, zinc, and copper) and acidic substances in AMD can be toxic to humans; long-term exposure can lead to poisoning, causing gastrointestinal problems, respiratory problems, and liver and kidney damage. It is estimated that approximately 19,300 kilometers of streams and about 72,000 hectares of lakes and reservoirs worldwide have been severely damaged by AMD. However, the true scale of environmental pollution caused by AMD emissions is difficult to accurately assess. The main problems faced are the limited applicability of the governance technology and the difficulty in reducing the governance cost. Therefore, developing AMD processing technology with high economic efficiency and good governance effect has become an important research goal for scholars in recent years.

[0003] Neutralization is a common method for treating acidic mine wastewater (AMD). Due to its economic and convenient nature, it is used in the treatment of acidic mine wastewater around the world. Although neutralization can effectively reduce metal concentration and increase pH, its removal effect is poor when metals such as chromium and manganese are present in the wastewater. A second stage of treatment is required, which affects the treatment effect of acidic mine wastewater. In order to facilitate the treatment of acidic mine wastewater, an acidic mine wastewater treatment system based on electrocoagulation is provided. Summary of the Invention

[0004] The purpose of this invention is to provide an acidic mine wastewater treatment system based on electrocoagulation, in order to facilitate the treatment of acidic mine wastewater.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an acidic mine wastewater treatment system based on electrocoagulation, comprising an equalization tank, which is connected to a sedimentation tank via a pipeline. Wastewater settled in the sedimentation tank is electrolyzed, and the electrolyzed wastewater is filtered to remove flocculants. Electrolysis is carried out in an electrolytic cell. An inlet is provided on one side of the inner cavity of the electrolytic cell, and placement frames are provided at both ends of the inner cavity of the electrolytic cell. The placement frames are used to place electrode materials. The placement frames are moved out of the electrolytic cell by a lifting mechanism. The placement frames are automatically opened and closed by a rotating mechanism. The electrode materials placed in the placement frames are electrically conductive through an energizing mechanism.

[0006] As a further embodiment of the present invention: the lifting mechanism includes a horizontal groove, which is symmetrically opened on both sides of the inner cavity of the electrolytic cell. A horizontal rod is slidably connected to the inner wall of the horizontal groove. A limiting rod that passes through the horizontal rod is fixedly connected in one of the horizontal grooves, and a threaded rod that passes through the horizontal rod is rotatably connected in the other horizontal groove. A motor is installed on the outer wall of the electrolytic cell. The threaded rod is connected to the output end of the motor. A connecting rod is rotatably connected to the top of the horizontal rod. A lifting frame is rotatably connected to the top of the connecting rod. Connecting blocks are fixedly connected to both ends of the bottom of the lifting frame. A rotating block is rotatably connected to the bottom end of the connecting block. A connecting rod is rotatably connected to the bottom end of the rotating block. The connecting rod is fixedly connected to the placement frame.

[0007] As a further embodiment of the present invention: the rotating mechanism includes a rotating seat, which is symmetrically rotatably connected to both ends of the top of the electrolytic cell. An annular groove is formed at the top of the electrolytic cell. A rotating ring is fixedly connected to the bottom of the rotating seat. The rotating ring is rotatably connected to the inner wall of the annular groove. Guide plates are symmetrically fixedly connected to the inner cavity of the rotating seat. Guide blocks are fixedly connected to the outer walls of both sides of the connecting rod. A baffle is rotatably connected to the outer wall of the placement frame. A fixed shaft passing through the connecting rod is fixedly connected to the bottom of the rotating block. A first bevel gear is fixedly connected to the outer wall of the fixed shaft. A second bevel gear is rotatably connected to the inner side of the connecting rod located on the outer wall of the first bevel gear. A connecting shaft is fixedly connected to the bottom of the second bevel gear. A third bevel gear is fixedly connected to the bottom of the connecting shaft. A fourth bevel gear is rotatably connected to the inner side of the placement frame located on the outer wall of the third bevel gear. A fifth bevel gear is fixedly connected to one end of the fourth bevel gear. A sixth bevel gear is fixedly connected to the outer wall of the baffle. The sixth bevel gear is in contact with the fifth bevel gear.

[0008] As a further embodiment of the present invention: the energizing mechanism includes a conductive wire, a positioning sleeve is sleeved on the outer wall of the conductive wire, an installation groove is opened in the inner cavity of the placement frame, a conductive block is fixedly connected to the inner wall of the installation groove, a connection port communicating with the installation groove is provided on the outer wall of the placement frame, a rubber tube is provided on the inner wall of the connection port, the conductive wire enters the installation groove through the rubber tube, and an elastic sheet is fixedly connected to one end of the connection port on the outer wall of the rubber tube.

[0009] As a further embodiment of the present invention: the inner wall of the transverse groove is in contact with the outer wall of the crossbar, and both ends of the connecting rod are connected to the crossbar and the lifting frame through a rotating shaft.

[0010] As a further embodiment of the present invention: the outer wall of the crossbar is provided with a limiting hole and a threaded hole, the inner wall of the limiting hole is in contact with the outer wall of the limiting rod, and the outer wall of the threaded rod is symmetrically provided with external threads, the external threads being matched with the threaded hole.

[0011] As a further embodiment of the present invention: the connecting block passes through the inner cavity of the rotating seat, and the end of the guide block located below the guide plate is cylindrical in shape.

[0012] As a further embodiment of the present invention: the first bevel gear meshes with the second bevel gear, the third bevel gear meshes with the fourth bevel gear, and the fifth bevel gear meshes with the sixth bevel gear.

[0013] As a further embodiment of the present invention: the outer wall of the rotating ring is in contact with the inner wall of the annular groove.

[0014] As a further embodiment of the present invention: the outer wall of the connection port and the inner wall of the positioning sleeve are provided with matching threads, and one end of the positioning sleeve is conical.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. Electrocoagulation, using aluminum, iron, or a mixture of aluminum and iron electrodes, is effective in removing heavy metals from AMD (Ammonium Acid). It also has a synergistic effect on removing high concentrations of sulfate from AMD. During the electrocoagulation process, the pH of the water rises to 6-7, and flocculated precipitates containing metal oxides are produced. These metal oxides are not released back into the receiving water. In addition, electrocoagulation is easy to operate and produces high-quality effluent. Compared with conventional neutralization, the precipitates produced by electrocoagulation are more compact and have higher metal purity, making them easier to recycle and reuse, thus facilitating the treatment of acidic mine wastewater.

[0017] 2. By setting up a lifting mechanism and a rotating mechanism, the motor drives the crossbar to slide, and the movement of the crossbar drives the placement frame to move. During the upward movement of the placement frame, when the connecting rod moves into the inner cavity of the rotating seat, the guide block contacts the guide plate, thereby driving the placement frame to rotate and be placed horizontally. The baffle rotates and opens the placement frame, so that when the placement frame moves to the rotating seat, it automatically rotates to be placed horizontally and automatically opens the baffle. Then the rotating seat and the placement frame can be rotated to rotate the placement frame to one side, which facilitates the movement of the placement frame in and out of the electrolytic cell and facilitates the replacement of the electrode material inside the placement frame. Attached Figure Description

[0018] Figure 1 This is a flowchart of the present invention;

[0019] Figure 2 This is a schematic diagram of the electrolytic cell of the present invention;

[0020] Figure 3 This is a cross-sectional view of the electrolytic cell of the present invention;

[0021] Figure 4 This is a schematic diagram of the installation of the crossbar of the present invention;

[0022] Figure 5 This is a schematic diagram of the lifting frame of the present invention;

[0023] Figure 6 This is a schematic diagram of the installation of the rotating base of the present invention;

[0024] Figure 7 This is a schematic diagram of the installation of the rotating block of the present invention;

[0025] Figure 8 This is a partial cross-sectional view of the placement frame of the present invention;

[0026] Figure 9 This is a schematic diagram of the baffle of the present invention;

[0027] Figure 10 This is a schematic diagram of the installation of the positioning sleeve of the present invention;

[0028] Figure 11 This is a cross-sectional view of the connection port of the present invention.

[0029] In the diagram: 1. Electrolytic cell; 2. Inlet; 3. Placement frame; 4. Lifting mechanism; 401. Horizontal groove; 402. Horizontal bar; 403. Limiting rod; 404. Threaded rod; 405. Motor; 406. Connecting rod; 407. Lifting frame; 408. Connecting block; 409. Rotating block; 410. Connecting rod; 5. Rotating mechanism; 501. Rotating seat; 502. Rotating ring; 503. Annular groove; 504. Guide plate; 505. Guide... 506. Block; 507. Baffle; 508. Fixed shaft; 509. First bevel gear; 510. Second bevel gear; 511. Connecting shaft; 512. Third bevel gear; 513. Fourth bevel gear; 514. Fifth bevel gear; 515. Sixth bevel gear; 6. Power supply mechanism; 601. Conductive wire; 602. Positioning sleeve; 603. Mounting groove; 604. Conductive block; 605. Connection port; 606. Rubber tube; 607. Elastic sheet. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.

[0032] Please see Figures 1 to 11In this embodiment of the invention, an acidic mine wastewater treatment system based on electrocoagulation includes an equalization tank connected to a sedimentation tank via a pipeline. The wastewater after sedimentation in the sedimentation tank is electrolyzed, and the electrolyzed wastewater is filtered to remove flocculants. Electrolysis is carried out in an electrolysis cell 1. An inlet 2 is provided on one side of the inner cavity of the electrolysis cell 1, and placement frames 3 are provided at both ends of the inner cavity of the electrolysis cell 1. The placement frames 3 are used to place electrode materials. The placement frames 3 are moved out of the electrolysis cell 1 by a lifting mechanism 4. The placement frames 3 are automatically opened and closed by a rotating mechanism 5. The electrode materials placed in the placement frames 3 are electrically conductive through an energizing mechanism 6.

[0033] In this embodiment, the electrode material for electrocoagulation mainly uses aluminum, iron, or a mixture of aluminum and iron electrodes. It has a remarkable effect on removing heavy metals from AMD and also has a synergistic effect on removing high concentrations of sulfate in AMD. More importantly, during the electrocoagulation reaction, the pH of the water body rises to 6-7, and flocculated precipitates containing metal oxides are produced. These metal oxides will not be released back into the receiving water body. In addition, electrocoagulation has become an effective technology for precipitating pollutants due to its ease of operation and high effluent quality. Compared with conventional neutralization methods, the precipitates produced by electrocoagulation are more compact and have higher metal purity, making them easier to recycle and reuse, and facilitating the treatment of acidic mine wastewater.

[0034] Please refer to this carefully. Figures 2 to 5 The lifting mechanism 4 includes a horizontal groove 401, which is symmetrically opened on both sides of the inner cavity of the electrolytic cell 1. A horizontal bar 402 is slidably connected to the inner wall of the horizontal groove 401. A limiting rod 403 that passes through the horizontal bar 402 is fixedly connected in one horizontal groove 401. A threaded rod 404 that passes through the horizontal bar 402 is rotatably connected in the other horizontal groove 401. A motor 405 is installed on the outer wall of the electrolytic cell 1. The threaded rod 404 is connected to the output end of the motor 405. A connecting rod 406 is rotatably connected to the top of the horizontal bar 402. A lifting frame 407 is rotatably connected to the top of the connecting rod 406. Connecting blocks 408 are fixedly connected to both ends of the bottom of the lifting frame 407. A rotating block 409 is rotatably connected to the bottom end of the connecting block 408. A connecting rod 410 is rotatably connected to the bottom end of the rotating block 409. The connecting rod 410 is fixedly connected to the placement frame 3.

[0035] In this embodiment: when moving the placement frame 3, the motor 405 is started. The motor 405 drives the threaded rod 404 to rotate. The rotation of the threaded rod 404 causes the crossbar 402 to slide in the transverse groove 401. The movement of the crossbar 402 causes the connecting rod 406 to rotate. The rotation of the connecting rod 406 causes the lifting frame 407 to move. The movement of the lifting frame 407 causes the connecting block 408 to move. The displacement of the connecting block 408 causes the connecting rod 410 to move through the rotating block 409. The movement of the connecting rod 410 causes the placement frame 3 to move, thereby facilitating the movement of the placement frame 3 out and into the electrolytic cell 1.

[0036] Please refer to this carefully. Figures 6 to 9 The rotating mechanism 5 includes a rotating seat 501, which is symmetrically rotatably connected to both ends of the top of the electrolytic cell 1. An annular groove 503 is formed at the top of the electrolytic cell 1. A rotating ring 502 is fixedly connected to the bottom of the rotating seat 501, and the rotating ring 502 is rotatably connected to the inner wall of the annular groove 503. Guide plates 504 are symmetrically fixedly connected to the inner cavity of the rotating seat 501. Guide blocks 505 are fixedly connected to the outer walls on both sides of the connecting rod 410. A baffle 506 is rotatably connected to the outer wall of the placement frame 3. A fixed shaft 507, penetrating the connecting rod 410, is fixedly connected to the bottom of the rotating block 409. The fixed shaft 507... A first bevel gear 508 is fixedly connected to the outer wall. A second bevel gear 509 is rotatably connected to the inner side of the connecting rod 410 located on the outer wall of the first bevel gear 508. A connecting shaft 510 is fixedly connected to the bottom end of the second bevel gear 509. A third bevel gear 511 is fixedly connected to the bottom end of the connecting shaft 510. A fourth bevel gear 512 is rotatably connected to the inner side of the placement frame 3 located on the outer wall of the third bevel gear 511. A fifth bevel gear 513 is fixedly connected to one end of the fourth bevel gear 512. A sixth bevel gear 514 is fixedly connected to the outer wall of the baffle 506. The sixth bevel gear 514 is in contact with the fifth bevel gear 513.

[0037] In this embodiment: During the upward movement of the placement frame 3, when the connecting rod 410 moves into the inner cavity of the rotating seat 501, the guide block 505 contacts the guide plate 504. The guide block 505 slides along the outer wall of the guide plate 504, thereby causing the connecting rod 410 to rotate relative to the rotating block 409, thus causing the placement frame 3 to rotate and be placed horizontally. When the connecting rod 410 rotates, the second bevel gear 509 moves along the outer wall of the first bevel gear 508 and rotates. The rotation of the second bevel gear 509 causes the connecting shaft 510 to rotate, and the rotation of the connecting shaft 510 causes the third bevel gear 511 to rotate. The rotation of the third bevel gear 511 causes... The fourth bevel gear 512 rotates, which drives the fifth bevel gear 513 to rotate. The fifth bevel gear 513 then drives the sixth bevel gear 514 to rotate, which in turn drives the baffle 506 to rotate, opening the placement frame 3. When the placement frame 3 moves to the rotating seat 501, it automatically rotates to a horizontal position and automatically opens the baffle 506. Then, the rotating seat 501 and the placement frame 3 can be rotated to one side, facilitating the replacement of the electrode material inside the placement frame 3. When the placement frame 3 is moved into the electrolytic cell 1, the baffle 506 automatically closes the placement frame 3.

[0038] Please refer to this carefully. Figures 9 to 11 The energizing mechanism 6 includes a conductive wire 601, a positioning sleeve 602 sleeved on the outer wall of the conductive wire 601, an installation groove 603 is provided in the inner cavity of the placement frame 3, a conductive block 604 is fixedly connected to the inner wall of the installation groove 603, a connection port 605 communicating with the installation groove 603 is provided on the outer wall of the placement frame 3, a rubber tube 606 is provided on the inner wall of the connection port 605, the conductive wire 601 enters the installation groove 603 through the rubber tube 606, and an elastic sheet 607 is fixedly connected to one end of the connection port 605 on the outer wall of the rubber tube 606.

[0039] In this embodiment: when the electrode material is energized, the electrode material comes into contact with the conductive block 604. The conductive wire 601 passes through the rubber tube 606 and enters the mounting groove 603, where it comes into contact with the conductive block 604. Then, the positioning sleeve 602 is threaded onto the outer wall of the connection port 605. During the tightening of the positioning sleeve 602, the positioning sleeve 602 moves and comes into contact with the elastic sheet 607. The elastic sheet 607 is squeezed and deformed, which compresses the rubber tube 606, thereby compressing and sealing the conductive wire 601 and the rubber tube 606 to prevent one end of the conductive wire 601 from directly contacting the liquid. The conductive wire 601 conducts electricity to the electrode material through the conductive block 604.

[0040] Please refer to this carefully. Figures 3 to 5The inner wall of the transverse groove 401 fits against the outer wall of the crossbar 402. Both ends of the connecting rod 406 are connected to the crossbar 402 and the lifting frame 407 through a rotating shaft. The outer wall of the crossbar 402 is provided with a limit hole and a threaded hole. The inner wall of the limit hole fits against the outer wall of the limit rod 403. The outer wall of the threaded rod 404 is symmetrically provided with external threads, and the external threads match the threaded holes.

[0041] In this embodiment: the motor 405 drives the threaded rod 404 to rotate, the threaded rod 404 rotates and drives the crossbar 402 to slide in the transverse groove 401. At this time, the limiting rod 403 slides in the limiting hole to support and limit the movement of the crossbar 402. The movement of the crossbar 402 drives the connecting rod 406 to rotate, the rotation of the connecting rod 406 drives the lifting frame 407 to move, and the movement of the lifting frame 407 drives the connecting block 408 to move.

[0042] Please refer to this carefully. Figures 5 to 9 The connecting block 408 passes through the inner cavity of the rotating seat 501, and the guide block 505 is cylindrical at one end located below the guide plate 504.

[0043] In this embodiment: during the rising process of the placement frame 3, when the connecting rod 410 moves into the inner cavity of the rotating seat 501, the guide block 505 contacts the guide plate 504, and the guide block 505 slides along the outer wall of the guide plate 504, thereby driving the connecting rod 410 to rotate relative to the rotating block 409, thereby driving the placement frame 3 to rotate and be placed horizontally.

[0044] Please refer to this carefully. Figures 5 to 9 The first bevel gear 508 meshes with the second bevel gear 509, the third bevel gear 511 meshes with the fourth bevel gear 512, and the fifth bevel gear 513 meshes with the sixth bevel gear 514.

[0045] In this embodiment: when the connecting rod 410 rotates, the second bevel gear 509 moves along the outer wall of the first bevel gear 508 and rotates. The rotation of the second bevel gear 509 drives the connecting shaft 510 to rotate. The rotation of the connecting shaft 510 drives the third bevel gear 511 to rotate. The rotation of the third bevel gear 511 drives the fourth bevel gear 512 to rotate. The rotation of the fourth bevel gear 512 drives the fifth bevel gear 513 to rotate. The rotation of the fifth bevel gear 513 drives the sixth bevel gear 514 to rotate. The rotation of the sixth bevel gear 514 drives the baffle 506 to rotate, opening the placement frame 3. When the placement frame 3 moves to the rotating seat 501, it automatically rotates to a horizontal position and automatically opens the baffle 506.

[0046] Please refer to this carefully. Figures 5 to 9 The outer wall of the rotating ring 502 is in contact with the inner wall of the annular groove 503.

[0047] In this embodiment: Rotate the rotating seat 501 and the placement frame 3 to rotate the placement frame 3 to one side. At this time, the rotating ring 502 is in the annular groove 503, which facilitates the replacement of the electrode material inside the placement frame 3.

[0048] Please refer to this carefully. Figures 9 to 11 The outer wall of the connector 605 and the inner wall of the positioning sleeve 602 are provided with matching threads, and one end of the positioning sleeve 602 is conical.

[0049] In this embodiment: the conductive wire 601 is passed through the rubber tube 606 and enters the mounting groove 603 to contact the conductive block 604. Then, the positioning sleeve 602 is threaded onto the outer wall of the connection port 605. During the tightening of the positioning sleeve 602, the positioning sleeve 602 moves and contacts the elastic sheet 607, compressing the elastic sheet 607 to deform and press the rubber tube 606, thereby performing a pressing and sealing operation between the conductive wire 601 and the rubber tube 606.

[0050] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A system for treating acidic mine wastewater based on electrocoagulation, characterized in that, It includes an equalization tank, which is connected to a sedimentation tank via a pipeline. The wastewater after sedimentation in the sedimentation tank is electrolyzed, and the electrolyzed wastewater is filtered to remove the flocculent matter. Electrolysis is carried out in an electrolysis cell (1). An inlet (2) is provided on one side of the inner cavity of the electrolysis cell (1), and a placement frame (3) is provided at both ends of the inner cavity of the electrolysis cell (1). The placement frame (3) is used to place the electrode material. The placement frame (3) is moved out of the electrolysis cell (1) by a lifting mechanism (4). The placement frame (3) is automatically opened and closed by a rotating mechanism (5). The electrode material placed in the placement frame (3) is electrically conductive through an energizing mechanism (6). The lifting mechanism (4) includes a transverse groove (401), which is symmetrically opened on both sides of the inner cavity of the electrolytic cell (1). A crossbar (402) is slidably connected to the inner wall of the transverse groove (401). A limiting rod (403) is fixedly connected in one transverse groove (401) and passes through the crossbar (402). A threaded rod (404) is rotatably connected in the other transverse groove (401) and passes through the crossbar (402). A motor (405) is installed on the outer wall of the electrolytic cell (1). The threaded rod... (404) is connected to the output end of the motor (405). The top end of the crossbar (402) is rotatably connected to the connecting rod (406). The top end of the connecting rod (406) is rotatably connected to the lifting frame (407). The bottom ends of the lifting frame (407) are fixedly connected to the connecting blocks (408). The bottom end of the connecting block (408) is rotatably connected to the rotating block (409). The bottom end of the rotating block (409) is rotatably connected to the connecting rod (410). The connecting rod (410) is fixedly connected to the placement frame (3). The rotating mechanism (5) includes a rotating seat (501), which is symmetrically rotatably connected to the top two ends of the electrolytic cell (1). An annular groove (503) is provided at the top of the electrolytic cell (1). A rotating ring (502) is fixedly connected to the bottom end of the rotating seat (501). The rotating ring (502) is rotatably connected to the inner wall of the annular groove (503). A guide plate (504) is symmetrically fixedly connected to the inner cavity of the rotating seat (501). Guide blocks (505) are fixedly connected to the outer walls on both sides of the connecting rod (410). A baffle (506) is rotatably connected to the outer wall of the placement frame (3). A fixed shaft (507) passing through the connecting rod (410) is fixedly connected to the bottom end of the rotating block (409). A first bevel gear (508) is fixedly connected to the outer wall of (507). A second bevel gear (509) is rotatably connected to the inner side of the connecting rod (410) located on the outer wall of the first bevel gear (508). A connecting shaft (510) is fixedly connected to the bottom end of the second bevel gear (509). A third bevel gear (511) is fixedly connected to the bottom end of the connecting shaft (510). A fourth bevel gear (512) is rotatably connected to the inner side of the placement frame (3) located on the outer wall of the third bevel gear (511). A fifth bevel gear (513) is fixedly connected to one end of the fourth bevel gear (512). A sixth bevel gear (514) is fixedly connected to the outer wall of the baffle (506). The sixth bevel gear (514) is in contact with the fifth bevel gear (513).

2. The acidic mine wastewater treatment system based on electrocoagulation according to claim 1, characterized in that, The power supply mechanism (6) includes a conductive wire (601), a positioning sleeve (602) is sleeved on the outer wall of the conductive wire (601), an installation groove (603) is opened in the inner cavity of the placement frame (3), a conductive block (604) is fixedly connected to the inner wall of the installation groove (603), a connection port (605) communicating with the installation groove (603) is provided on the outer wall of the placement frame (3), a rubber tube (606) is provided on the inner wall of the connection port (605), the conductive wire (601) enters the installation groove (603) through the rubber tube (606), and an elastic sheet (607) is fixedly connected to one end of the connection port (605) on the outer wall of the rubber tube (606).

3. The acidic mine wastewater treatment system based on electrocoagulation according to claim 1, characterized in that, The inner wall of the transverse groove (401) is in contact with the outer wall of the crossbar (402), and both ends of the connecting rod (406) are connected to the crossbar (402) and the lifting frame (407) through a rotating shaft.

4. The acidic mine wastewater treatment system based on electrocoagulation according to claim 1, characterized in that, The outer wall of the crossbar (402) is provided with a limiting hole and a threaded hole. The inner wall of the limiting hole is in contact with the outer wall of the limiting rod (403). The outer wall of the threaded rod (404) is symmetrically provided with external threads, and the external threads are matched with the threaded holes.

5. The acidic mine wastewater treatment system based on electrocoagulation according to claim 1, characterized in that, The connecting block (408) passes through the inner cavity of the rotating seat (501), and the guide block (505) is cylindrical at one end located below the guide plate (504).

6. The acidic mine wastewater treatment system based on electrocoagulation according to claim 1, characterized in that, The first bevel gear (508) meshes with the second bevel gear (509), the third bevel gear (511) meshes with the fourth bevel gear (512), and the fifth bevel gear (513) meshes with the sixth bevel gear (514).

7. The acidic mine wastewater treatment system based on electrocoagulation according to claim 1, characterized in that, The outer wall of the rotating ring (502) is in contact with the inner wall of the annular groove (503).

8. The acidic mine wastewater treatment system based on electrocoagulation according to claim 2, characterized in that, The outer wall of the connector (605) and the inner wall of the positioning sleeve (602) are provided with matching threads, and one end of the positioning sleeve (602) is conical.

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