Multistage treatment system for diesel oil anti-wear agent processing wastewater

Abstract

The invention discloses a diesel oil anti-wear agent processing wastewater multi-stage treatment system, which comprises a reaction tank, a plurality of first partition plates, a plurality of second partition plates, a plurality of third partition plates, a plurality of third partition plates, a plurality of fourth partition plates and a plurality of fourth partition plates, and the two opposite sides of the reaction tank are respectively provided with a water inlet and a water outlet; the second partition plate is arranged between the two first partition plates, and a gap is reserved between the lower end of the second partition plate and the bottom of the reaction tank; the aeration row is movably arranged below the second partition plate; and a driving assembly. The position of the aeration row is switched under the driving of the driving assembly, so that when wastewater pollution is serious, the aeration row can be switched to one side, close to the water inlet, of the second partition plate, the aeration direction is opposite to the wastewater flowing direction, the aeration time is prolonged, then the aeration row is switched to one side, close to the water outlet, of the second partition plate, and the aeration time is prolonged. The aeration direction is consistent with the flowing direction of the wastewater, so that the wastewater can fully flow and is not detained.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a multi-stage treatment system for wastewater from diesel anti-wear agent processing. Background Technology

[0002] Diesel anti-wear agents are mostly fatty acid ester compounds (such as glyceryl oleate and glyceryl monoricinoleate). Their production wastewater has an extremely high COD value, is a high concentration of organic matter, has low biodegradability, and easily forms stable emulsions, increasing the difficulty of separation. In existing industrial practices, a multi-stage combined process of pretreatment, main treatment, advanced treatment and sludge disposal is commonly used.

[0003] Patent document CN212504305U discloses an organic wastewater treatment system, characterized by comprising: a multi-stage ozone catalytic oxidation subsystem connected in series, the ozone catalytic oxidation subsystem including a catalytic oxidation tank and an ozone oxidation tank, the bottom of the catalytic oxidation tank at the same stage being connected to the bottom of the ozone oxidation tank, and the subsequent catalytic oxidation tank being connected to the previous ozone oxidation tank; the catalytic oxidation tank is provided with a water distribution pipe, a catalytic layer, and an aeration layer from top to bottom. This invention improves the organic matter removal rate of wastewater through the multi-stage ozone catalytic oxidation subsystem connected in series, and by connecting the ozone oxidation tank after the catalytic oxidation tank in each stage of the ozone catalytic oxidation subsystem, the flow distance and contact time between ozone and wastewater are extended, promoting a full reaction between ozone and wastewater, further improving ozone utilization and organic matter removal rate, and increasing wastewater treatment efficiency.

[0004] In the existing technologies described above, aeration is the core step in wastewater treatment. Through its four main functions—oxygenation, mixing, removal of harmful gases, and sedimentation control—it directly determines the treatment effect and effluent quality. Aeration devices are typically fixed deep within the catalytic oxidation tank of the wastewater. Wastewater flows from one end of the tank to the other within a certain flow rate range. When multiple batches of wastewater have varying degrees of pollution, the catalytic oxidation reaction time can only be adjusted by controlling the influent and effluent rates. This is not only cumbersome but also affects treatment efficiency. Therefore, a multi-stage treatment system for diesel anti-wear agent processing wastewater is urgently needed to solve these problems. Summary of the Invention

[0005] The purpose of this invention is to provide a multi-stage treatment system for wastewater from diesel anti-wear agent processing, in order to overcome the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A multi-stage treatment system for diesel anti-wear agent processing wastewater includes a reaction tank with an inlet and an outlet on opposite sides. The system also includes: multiple first baffles spaced apart within the reaction tank and extending to the bottom; each first baffle sequentially dividing the interior of the reaction tank from the inlet to the outlet into a first aeration zone, a second aeration zone, a third aeration zone, and a discharge zone; a second baffle positioned between two first baffles, with a gap between its lower end and the bottom of the reaction tank; an aeration pump movably positioned below the second baffles; and a drive assembly for driving the aeration pump to switch between the two sides of the second baffles.

[0008] Preferably, the inner wall of the reaction tank is provided with a sliding groove, and a sliding component connected to the aeration outlet is movably arranged in the sliding groove. An isolation plate is fixedly arranged on the side of the sliding component away from the aeration outlet, and the isolation plate keeps the sliding groove in place.

[0009] Preferably, the outer wall of the reaction tank is provided with a drive chamber, and the drive assembly includes a telescopic drive unit installed in the drive chamber, the output end of which is connected to the isolation plate.

[0010] Preferably, the aeration row is provided with an aeration disc, and a cleaning plate is rotatably provided at the lower end of the second partition. When the aeration row passes under the cleaning plate during the movement and switching of positions, it stops for a period of time, and the cleaning plate rotates to scrape the surface of the aeration disc.

[0011] Preferably, the drive compartment is provided with a support plate, the support plate has a track groove, a sliding column is movably arranged in the track groove, a linkage block is fixedly arranged on the isolation plate, a drive plate is fixedly arranged at the output end of the telescopic drive unit, a slider fixedly connected to one end of the sliding column is movably arranged on the linkage block, and an inclined sliding groove is provided on the drive plate that is movably connected to the sliding column.

[0012] Preferably, the cleaning plate is directly driven by a servo system.

[0013] Preferably, the trajectory groove is Z-shaped, including a translation section with horizontal ends and a height difference, and a lifting section in the middle that is vertical and connects the two translation sections. During the process of the sliding column passing through the lifting section, the cleaning plate is moved by the linkage component.

[0014] Preferably, the linkage component includes a drive shaft rotatably disposed within the second partition, the drive shaft being connected to the rotating shaft of the cleaning plate via a bevel gear transmission, a linkage plate being movably disposed with damping in the drive chamber, the upper end of the linkage plate being connected to the drive shaft via a rack and pinion transmission, a lever block being disposed at the lower end of the linkage plate, and a lever fork matching the lever block being fixedly disposed at the end of the slide column away from the slider.

[0015] Preferably, the cleaning plate and the drive shaft are synchronously raised and lowered, the lower end of the second partition is provided with a storage groove that matches the cleaning plate, the rotation axis of the cleaning plate is offset from its axis of symmetry, and the linkage plate is provided with a limiting groove that matches the drive shaft.

[0016] Preferably, the drive shaft and the rotating shaft of the cleaning plate are kept in transmission by a sleeved limiting member.

[0017] In the above technical solution, the beneficial effects of the present invention are:

[0018] This multi-stage wastewater treatment system for diesel anti-wear agents utilizes alternating first and second baffles. This causes the wastewater in the reaction tank to flow from the inlet to the outlet, undulating multiple times and undergoing multi-stage aeration treatment in multiple aeration zones. This ensures thorough catalytic oxidation of the wastewater. Furthermore, the aeration pumps, driven by a drive assembly, can switch positions. When wastewater pollution is severe, the aeration pumps can be moved to the side of the second baffle closer to the inlet, aligning the aeration direction with the wastewater flow direction and extending the aeration time. Then, the aeration pumps can be moved to the side of the second baffle closer to the outlet, ensuring the aeration direction is consistent with the wastewater flow direction, guaranteeing sufficient wastewater flow and preventing stagnation.

[0019] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0020] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 For the present invention Figure 1 Enlarged structural diagram at point A;

[0024] Figure 3 This is a side cross-sectional view of the present invention.

[0025] Figure 4 This is a schematic diagram of the internal structure of the present invention;

[0026] Figure 5This is a frontal cross-sectional view of the second partition of the present invention;

[0027] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point B;

[0028] Figure 7 This is a front cross-sectional view of the sliding column structure of the present invention;

[0029] Figure 8 For the present invention Figure 7 A magnified structural diagram at point C.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Reaction tank; 2. Inlet; 3. Outlet; 4. First baffle; 5. Second baffle; 6. Aeration drain; 7. Sliding trough; 8. Sliding component; 9. Isolation plate; 10. Drive chamber; 11. Telescopic drive unit; 12. Aeration disc; 13. Cleaning plate; 14. Support plate; 15. Track groove; 16. Sliding column; 17. Linkage block; 18. Drive plate; 19. Sliding block; 20. Inclined sliding groove; 21. Drive shaft; 22. Linkage plate; 23. Pulley; 24. Pulley fork; 25. Storage groove; 26. Limiting groove; 27. Limiting component. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0033] Please see Figure 1-8 This invention provides a multi-stage treatment system for diesel anti-wear agent processing wastewater, comprising a reaction tank 1, with an inlet 2 and an outlet 3 respectively arranged on two opposite sides of the reaction tank 1, and further comprising: a first partition 4, which is arranged at intervals within the reaction tank 1 and extends to the bottom of the tank, each first partition 4 dividing the interior of the reaction tank 1 sequentially from the inlet 2 to the outlet 3 into a first aeration zone, a second aeration zone, a third aeration zone, and a discharge zone; a second partition 5, which is arranged between two first partitions 4, with a gap between its lower end and the bottom of the reaction tank 1; an aeration outlet 6, which is movably arranged below the second partition 5; and a drive assembly, which is used to drive the aeration outlet 6 to move to switch between the two sides of the second partition 5.

[0034] Specifically, the upper part of reaction tank 1 is open for observation, removal of floating debris, and addition of chemicals; both inlet 2 and outlet 3 are located near the bottom of reaction tank 1; the upper part of the first baffle 4 is lower than the upper part of reaction tank 1, and the liquid level in reaction tank 1 is higher than the upper part of the first baffle 4; multiple first baffles 4 are arranged vertically and parallel to each other; the side of reaction tank 1 with inlet 2 and the adjacent first baffle 4 is designated as the first aeration zone, and an aeration outlet 6 is fixedly installed in the first aeration zone; the side of reaction tank 1 with outlet 3 and the adjacent first baffle 4 is designated as the discharge zone for the discharge of treated wastewater; the upper part of the second baffle 5 is higher than the height of the liquid level in reaction tank 1; the second baffle 5 is parallel to the first baffle 4 and located between two adjacent first baffles. The wastewater in the reaction tank 1 flows from the inlet 2 to the outlet 3, passing around the first baffle 4 and the second baffle 5 in sequence, achieving multiple up-and-down fluctuations. An aeration pump 6 is located below the second baffle 5, specifically at the lower end of the second and third aeration zones. The aeration pump 6 moves horizontally. When it moves to the side of the second baffle 5 near the inlet 2, the aeration direction is opposite to the wastewater flow direction; when it moves to the side of the second baffle 5 near the outlet 3, the aeration direction is consistent with the wastewater flow direction. The aeration pump 6 is connected to an external air supply via a corrugated pipe or other flexible hose, without affecting its movement. The drive assembly is controlled by a servo system and operates in real-time in conjunction with a monitoring system within the reaction tank 1. This part is existing technology and will not be elaborated upon. In practical use, the wastewater in the reaction tank 1 flows from the inlet 2 to the outlet 3, and is blocked and guided by the first baffle 4 and the second baffle 5, rising and falling multiple times. It is also subjected to multi-stage aeration treatment in multiple aeration zones, so that the wastewater can be fully catalytically oxidized. Furthermore, the aeration outlet 6 can be switched under the drive of the drive component. When the wastewater is severely polluted, the aeration outlet 6 can be switched to the side of the second baffle 5 closer to the inlet 2, so that the aeration direction is opposite to the wastewater flow direction, thus prolonging the aeration time. Afterward, the aeration outlet 6 can be switched to the side of the second baffle 5 closer to the outlet 3, so that the aeration direction is consistent with the wastewater flow direction, ensuring that the wastewater flows fully and does not stagnate.

[0035] Compared with the prior art, the multi-stage treatment system for diesel anti-wear agent processing wastewater proposed in this embodiment of the invention sets up a first baffle 4 and a second baffle 5 alternately, so that the wastewater in the reaction tank 1 flows from the inlet 2 to the outlet 3 in multiple up-and-down motions, and is aerated in multiple layers in multiple aeration zones, so that the wastewater is fully catalytically oxidized. In addition, the aeration outlet 6 is switched in position under the drive of the drive component. When the wastewater is heavily polluted, the aeration outlet 6 can be switched to the side of the second baffle 5 closer to the inlet 2, so that the aeration direction is opposite to the wastewater flow direction, and the aeration time is extended. Afterwards, the aeration outlet 6 is switched to the side of the second baffle 5 closer to the outlet 3, so that the aeration direction is consistent with the wastewater flow direction, ensuring that the wastewater flows fully and does not stagnate.

[0036] As a preferred technical solution in this embodiment, a sliding groove 7 is provided on the inner wall of the reaction tank 1. A sliding component 8 connected to the aeration drain 6 is movably disposed in the sliding groove 7. A partition plate 9 is fixedly disposed on the side of the sliding component 8 away from the aeration drain 6. The partition plate 9 keeps the sliding groove 7 in place. Specifically, the sliding groove 7 is disposed on the lower side of the second partition plate 5 and is horizontally disposed. The sliding component 8 is connected to the end of the aeration drain 6. The sliding groove 7 and the sliding component 8 are configured as two sets, arranged on opposite sides of the reaction tank 1, to support the aeration drain 6. The horizontal length of the partition plate 9 is sufficient to fit and block the sliding groove 7 within its range of motion, so as to prevent water from leaking out of the reaction tank 1 through the sliding groove 7.

[0037] As a preferred technical solution in this embodiment, a drive chamber 10 is provided on the outer wall of the reaction tank 1. The drive assembly includes a telescopic drive unit 11 installed in the drive chamber 10. The output end of the telescopic drive unit 11 is connected to the isolation plate 9. Specifically, drive chambers 10 are provided on both opposite sides of the reaction tank 1. The telescopic drive unit 11 is preferably a cylinder, a hydraulic cylinder, or an electric telescopic rod. The telescopic drive unit 11 extends horizontally and parallel to the guiding direction of the sliding groove 7 on the sliding member 8.

[0038] In another embodiment of the present invention, an aeration disc 12 is provided on the aeration row 6, and a cleaning plate 13 is rotatably provided at the lower end of the second partition 5. When the aeration row 6 passes under the cleaning plate 13 during the switching of its position, it stops for a period of time, and the cleaning plate 13 rotates to scrape the surface of the aeration disc 12. Specifically, multiple aeration discs 12 are provided on the same aeration row 6, and the multiple aeration discs 12 are evenly arranged. The aeration disc 12 is in the shape of a rotating body, and the upper surface is a spherical arc surface. The lower end of the cleaning plate 13 is provided with an arc-shaped groove that matches the shape of the aeration row 6. The aeration disc 12 stops at the position directly below the cleaning plate 13, that is, the rotation axis of the aeration disc 12 is directly aligned with the cleaning plate 13. The cleaning plate 13 can be directly driven by a servo system. With the same sensor setting, when the aeration disc 12 passes under the cleaning plate 13, the cleaning plate 13 is triggered to rotate for a certain period of time. The specific triggering system is prior art and will not be described in detail. As described above, the cleaning plate 13 can be used to scrape and clean the upper surface of the aeration disc 12, preventing dirt from adhering to the surface of the aeration disc 12 for a long time during the wastewater treatment process and causing blockage.

[0039] As a preferred embodiment, a support plate 14 is provided inside the drive chamber 10, and a track groove 15 is provided on the support plate 14. A sliding column 16 is movably arranged in the track groove 15. A linkage block 17 is fixedly provided on the isolation plate 9. A drive plate 18 is fixedly provided at the output end of the telescopic drive unit 11. A slider 19, which is fixedly connected to one end of the sliding column 16, is movably arranged on the linkage block 17. An inclined slide groove 20, which is movably connected to the sliding column 16, is provided on the drive plate 18. Specifically, the support plate 14 is arranged parallel to the side wall of the reaction tank 1; the track groove 15 is Z-shaped, including two horizontal ends and provided with The system includes a translation section with a height difference and a lifting section that connects the two translation sections vertically in the middle; the translation section with a lower height in the track groove 15 is located near the water inlet 2; the axial vertical support plate 14 is set for the sliding column 16, and the sliding column 16 moves along the track groove 15; the linkage block 17 can only move horizontally with the sliding column 16 through the lifting and lowering movement of the slider 19, and the linkage block 17 remains stationary relative to the reaction tank 1 during the vertical movement of the sliding column 16; the drive plate 18 is set parallel to and attached to the side of the support plate 14 away from the reaction tank 1; the upper end of the inclined slide chute 20 is set closer to the water inlet 2. In practical use, the sliding column 16 is initially positioned at the higher end of the track groove 15. The telescopic drive unit 11 pushes the drive plate 18 to move towards the inlet 2. The inclined sliding groove 20 on the drive plate 18 then pushes the sliding column 16 to move within the track groove 15 towards the lifting section. The sliding column 16 drives the linkage block 17 to move, which in turn drives the isolation plate 9 to move. The isolation plate 9, through the sliding member 8, drives the aeration outlet 6 to move towards the inlet 2. When the sliding column 16 reaches the highest point of the lifting section, the drive plate 18 continues to move, and the inclined sliding groove 20 begins to force the sliding column 16 to descend within the lifting section. During this process, the linkage block 17 relative to the reaction tank 1... The aeration tube 6 is kept stationary below the cleaning plate 13 by the isolation plate 9 and the sliding member 8 until the sliding column 16 descends to the lowest point of the lifting section, where the sliding column 16 corresponds to the lower end of the track groove 15. When the drive plate 18 continues to move, the inclined slide groove 20 pushes the sliding column 16 to continue to move horizontally, and the linkage block 17 continues to drive the aeration tube 6 to move towards the inlet 2 through the isolation plate 9 and the sliding member 8. Conversely, when the telescopic drive unit 11 pulls the drive plate 18 back, the aeration tube 6 first moves horizontally towards the outlet 3, and then remains stationary below the cleaning plate 13 for a period of time before continuing to move horizontally towards the outlet 3.

[0040] In another embodiment of the present invention, during the process of the sliding column 16 passing through the lifting section, the cleaning plate 13 is moved by the linkage component. Specifically, the cleaning plate 13 is moved by the lifting and lowering movement of the sliding column 16 by the linkage component, which saves the additional power source setting and also ensures the matching between the movement of the cleaning plate 13 and the stationary state of the aeration outlet 6.

[0041] As a preferred embodiment, the linkage assembly includes a drive shaft 21 rotatably disposed within the second partition 5. The drive shaft 21 is connected to the rotating shaft of the cleaning plate 13 via a bevel gear transmission. A linkage plate 22 with damping lifting is movably disposed within the drive chamber 10. The upper end of the linkage plate 22 is connected to the drive shaft 21 via a rack and pinion transmission. A lever 23 is disposed at the lower end of the linkage plate 22. A lever fork 24 matching the lever 23 is fixedly disposed at the end of the slide column 16 away from the slider 19. Specifically, the axial direction of the drive shaft 21 is horizontal and parallel to the second partition 5. A first bevel gear is coaxially disposed on the drive shaft 21. A second bevel gear that meshes with the first bevel gear is disposed at the upper end of the rotating shaft of the cleaning plate 13. The linkage plate 22 is disposed parallel to the support plate 14. A rack is provided on the linkage plate 22, and a gear meshing with the rack is provided at the end of the drive shaft 21; the damping movement of the linkage plate 22 allows it to be suspended at any height within the lifting range without being affected by external forces; the lever block 23 is horizontally set, and when the sliding column 16 moves in the lifting section corresponding to the track groove 15, the lever block 23 is in contact with the lever fork 24. When the lever block 23 and the lever fork 24 are separated, the height of the lever fork 24 as it continues to move with the sliding column 16 and its subsequent return still corresponds to the height of the stationary lever block 23; the sliding column 16 moves through the entire lifting section of the track groove 15, and the angle of rotation of the cleaning plate 13 through the linkage plate 22 and the drive shaft 21 is preferably 180°, thereby ensuring that the cleaning plate 13 does not interfere with the aeration disc 12 when it approaches or leaves.

[0042] As a preferred technical solution in this embodiment, the cleaning plate 13 and the drive shaft 21 are synchronously raised and lowered. The lower end of the second partition 5 is provided with a storage groove 25 that matches the cleaning plate 13. The rotation axis of the cleaning plate 13 is offset from its axis of symmetry. The linkage plate 22 is provided with a limiting groove 26 that matches the drive shaft 21. Specifically, the drive shaft 21 and the rotation axis of the cleaning plate 13 are maintained by a sleeved limiting member 27. The limiting member 27 is L-shaped and its two ends are respectively sleeved on the rotation axis of the drive shaft 21 and the cleaning plate 13, so that the bevel gear transmission relationship between the two is stable and they can move up and down synchronously. The storage groove 25 matches the cleaning plate 13 one by one. The setting of the rotation axis of the cleaning plate 13 being offset from its axis of symmetry makes it impossible for the cleaning plate 13 to vertically coincide with the storage groove 25 after rotating 180°. The limiting groove 26 is used to limit the range of motion of the drive shaft 21 relative to the linkage plate 22. In practical use, when the drive plate 18 moves towards the inlet 2, the slide column 16 moves close to the upper end of the lifting section of the track groove 15, and the shift fork 24 engages with the shift block 23 at its highest position. Then, the slide column 16 descends in the lifting section, and the shift fork 24 drives the linkage plate 22 to descend via the shift block 23. At this time, the cleaning plate 13 is inside the receiving groove 25 and cannot rotate. The linkage plate 22 then drives the drive shaft 21 to descend, allowing the cleaning plate 13 to descend completely out of the receiving groove 25. When the drive shaft 21 stops descending, the continued descent of the linkage plate 22, through the gear and rack linkage, rotates the drive shaft 21. The drive shaft 21 then drives the cleaning plate 13 to rotate 180° to scrape and clean the aeration disc 12. Next, the slide column 16 leaves the lowest position of the lifting section and continues to move horizontally, and the aeration outlet 6 moves away from below the cleaning plate 13. Afterwards, the drive... When the movable plate 18 moves closer to the outlet 3, the sliding column 16 moves close to the lower end of the track groove 15, and the fork 24 can engage with the lowest position of the lever 23. Then, the sliding column 16 rises in the lifting section, and the fork 24 drives the linkage plate 22 to rise through the lever 23. At this time, the cleaning plate 13, after rotating 180°, is eccentrically aligned with the storage groove 25. The linkage plate 22 first rises relative to the drive shaft 21 to drive the drive shaft 21 to rotate. The drive shaft 21 then drives the cleaning plate 13 to rotate. After the cleaning plate 13 rotates 180°, the linkage plate 22 drives the drive shaft 21 to rise together. The drive shaft 21 drives the cleaning plate 13 to rise synchronously to return to the storage groove 25. In the process of the cleaning plate 13 returning to the storage groove 25, the dirt scraped at the end can be scraped off through the inner wall of the storage groove 25. And when the cleaning plate 13 is not in use, it is not exposed to the outside, avoiding the accumulation of dirt.

[0043] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A multi-stage treatment system for wastewater from diesel anti-wear agent processing, comprising a reaction tank (1), wherein an inlet (2) and an outlet (3) are respectively provided on two opposite sides of the reaction tank (1), characterized in that, Also includes: The first partition (4) is provided in multiple intervals in the reaction tank (1) and extends to the bottom of the tank. Each first partition (4) divides the interior of the reaction tank (1) into a first aeration zone, a second aeration zone, a third aeration zone and a discharge zone in sequence from the inlet (2) to the outlet (3). The second partition (5) is set between the two first partitions (4), and there is a gap between its lower end and the bottom of the reaction tank (1); The aeration row (6) is located below the second partition (5); A drive assembly for driving the aeration row (6) to switch between the two sides of the second partition (5).

2. The multi-stage treatment system for diesel anti-wear agent processing wastewater according to claim 1, characterized in that, The inner wall of the reaction tank (1) is provided with a sliding groove (7), and a sliding component (8) connected to the aeration outlet (6) is movably arranged in the sliding groove (7). A partition plate (9) is fixedly arranged on the side of the sliding component (8) away from the aeration outlet (6), and the partition plate (9) keeps the sliding groove (7) in place.

3. The multi-stage treatment system for diesel anti-wear agent processing wastewater according to claim 2, characterized in that, The outer wall of the reaction tank (1) is provided with a drive chamber (10), and the drive assembly includes a telescopic drive unit (11) installed in the drive chamber (10). The output end of the telescopic drive unit (11) is connected to the isolation plate (9).

4. The multi-stage treatment system for diesel anti-wear agent processing wastewater according to claim 3, characterized in that, An aeration disc (12) is provided on the aeration row (6), and a cleaning plate (13) is rotatably provided at the lower end of the second partition (5). When the aeration row (6) passes under the cleaning plate (13) during the movement switching position, it stops for a period of time, and the cleaning plate (13) rotates to scrape the surface of the aeration disc (12).

5. The multi-stage treatment system for diesel anti-wear agent processing wastewater according to claim 4, characterized in that, The drive compartment (10) is provided with a support plate (14), a track groove (15) is provided on the support plate (14), a sliding column (16) is movably provided in the track groove (15), a linkage block (17) is fixedly provided on the isolation plate (9), a drive plate (18) is fixedly provided at the output end of the telescopic drive unit (11), a slider (19) fixedly connected to one end of the sliding column (16) is movably provided on the linkage block (17), and an inclined slide groove (20) movably connected to the sliding column (16) is provided on the drive plate (18).

6. The multi-stage treatment system for diesel anti-wear agent processing wastewater according to claim 4, characterized in that, The cleaning plate (13) is directly driven by the servo system.

7. The multi-stage treatment system for diesel anti-wear agent processing wastewater according to claim 5, characterized in that, The track groove (15) is Z-shaped, including a translation section with horizontal ends and a height difference, and a lifting section in the middle that is vertical and connects the two translation sections. During the process of the sliding column (16) passing through the lifting section, the cleaning plate (13) moves in conjunction with the linkage component.

8. The multi-stage treatment system for diesel anti-wear agent processing wastewater according to claim 7, characterized in that, The linkage assembly includes a drive shaft (21) rotatably disposed inside the second partition (5), the drive shaft (21) being connected to the rotating shaft of the cleaning plate (13) via bevel gear transmission, a linkage plate (22) being movably disposed in the drive chamber (10) with damping, the upper end of the linkage plate (22) being connected to the drive shaft (21) via rack and pinion transmission, a lever (23) being disposed at the lower end of the linkage plate (22), and a lever fork (24) matching the lever (23) being fixedly disposed at the end of the slide column (16) away from the slider (19).

9. The multi-stage treatment system for diesel anti-wear agent processing wastewater according to claim 8, characterized in that, The cleaning plate (13) and the drive shaft (21) can be moved up and down synchronously. The lower end of the second partition (5) is provided with a storage groove (25) that matches the cleaning plate (13). The rotation axis of the cleaning plate (13) is offset from its symmetrical axis. The linkage plate (22) is provided with a limiting groove (26) that matches the drive shaft (21).

10. The multi-stage treatment system for diesel anti-wear agent processing wastewater according to claim 9, characterized in that, The drive shaft (21) and the rotating shaft of the cleaning plate (13) are kept in transmission by a sleeved limiting member (27).

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