Waste liquid purification treatment device for cobalt chloride production and processing

Abstract

The invention relates to the technical field of wastewater multi-stage treatment, in particular to a cobalt chloride production and processing waste liquid purification treatment device which comprises an air flotation bin and a multi-stage treatment mechanism. The multi-stage treatment mechanism is communicated with the air flotation bin and used for multi-stage purification treatment of waste liquid, and the scraping mechanism is mounted in the air flotation bin; the extension mechanism is mounted on the scraping mechanism and is used for scraping dross in the air floatation bin; the scraping mechanism comprises a driving assembly, a scraping assembly, a discharging assembly and a control assembly. The driving assembly is mounted on the air floatation bin and is used for driving the scraping assembly to move; the scraping assembly is mounted on the driving assembly; through contact between the concave-convex block and the vibration block and elasticity of the first elastic piece, when the vibration block moves along the surface of the concave-convex block, the scraper vibrates up and down, then scum on the scraper can be shaken off into the scum collecting bin from the second through hole, the scum on the surface of the scraper can be rapidly cleaned, and it is ensured that all the scum can fall into the scum collecting bin to be discharged.

Description

Technical Field

[0001] This invention relates to the field of multi-stage wastewater treatment technology, specifically to a wastewater purification and treatment device for cobalt chloride production and processing. Background Technology

[0002] Cobalt chloride is an inorganic compound that can be used in instrument manufacturing and battery materials. However, the production of cobalt chloride generates a lot of waste liquid rich in metallic impurities. If this waste liquid is directly discharged into the environment, it will have an impact on the environment and be detrimental to environmental protection. The waste liquid purification and treatment device is an integrated device that uses multiple equipment to perform multi-stage purification of waste liquid, such as oil removal, chemical precipitation, and filtration.

[0003] Chinese invention patent application CN121573870A discloses a wastewater purification device and method based on a reaction liquid, relating to the technical field of wastewater treatment. The wastewater purification device based on the reaction liquid includes an air flotation tank, which is equipped with an air flotation contact zone, a separation zone, a sludge collection zone, and a clear water zone. An inlet is located on the lower part of one side of the air flotation tank, and an outlet and a waste discharge outlet are located in the clear water zone and sludge collection zone on the other side of the tank, respectively. A return outlet is also provided in the clear water zone of the air flotation tank. At least one aerator is installed in the air flotation contact zone of the air flotation tank. This prior art, by improving the traditional flat scraper to a J-shaped structure, overcomes the technical limitation of conventional air flotation machines that can only remove surface scum, effectively solving the problem of reduced treatment efficiency caused by the settling and residue of heavy impurities, improving the stability of the effluent water quality, and reducing the load on the subsequent sludge treatment system. It is particularly suitable for the treatment of paper recycling wastewater with high fiber and high filler content.

[0004] During the operation of the flotation machine, the scraper pushes the scum on the surface of the waste liquid into the scum collection tank. However, the scum is sticky, which means that when the scraper pushes the scum into the scum collection tank, the scum will still remain on the scraper surface. This means that a portion of the scum cannot be recovered, and the scum remaining on the scraper surface will dry out, affecting the long-term normal use of the scraper. Summary of the Invention

[0005] The purpose of this invention is to address the problems existing in the background art by proposing a waste liquid purification and treatment device for cobalt chloride production and processing.

[0006] The technical solution of this invention: A waste liquid purification and treatment device for cobalt chloride production and processing, comprising an air flotation tank and a multi-stage treatment mechanism; the multi-stage treatment mechanism is connected to the air flotation tank and is used for multi-stage purification treatment of the waste liquid, and includes a scraping mechanism installed in the air flotation tank; an elongation mechanism installed on the scraping mechanism and used to scrape off the scum in the air flotation tank; the scraping mechanism includes a drive component, a scraping component, a discharge component, and a control component; the drive component is installed on the air flotation tank and is used to drive the scraping component to move; the scraping component is installed on the drive component and is used to scrape off the scum in the air flotation tank; the discharge component is installed inside the scraping component and causes the scum in the scraping component to be discharged; the drive component drives the scraping component to scrape off the scum in the air flotation tank, and then provides the discharge component so that all the scum in the scraping component is discharged.

[0007] Preferably, the drive assembly includes a drive device one, drive rollers, and a transmission unit; the drive device one is installed outside the air flotation chamber; there are two drive rollers, which are respectively installed on the output shaft of the drive device one and rotatably connected to the air flotation chamber; the transmission unit is sleeved on the two drive rollers; and the scraping assembly is installed on the transmission unit.

[0008] Preferably, the scraping assembly includes a mounting plate, an elastic element one, a scraper, a through hole two, and a vibrating block; the mounting plate is mounted on the transmission part; the two ends of the elastic element one are respectively connected to the mounting plate and the scraper; the through hole two is formed on the scraper; and the vibrating block is mounted on the scraper.

[0009] Preferably, the discharge assembly includes an elastic element two, a baffle plate, a through hole one, a movable rod, and a moving groove; the moving groove is formed on the scraper plate; the two ends of the elastic element two are respectively connected to the scraper plate and the baffle plate; the through hole one is formed on the baffle plate; the movable rod is installed on the baffle plate and moves within the moving groove.

[0010] Preferably, the control component includes a drive unit, a reset plate, an arc plate, an inclined plate, and a bump block; the drive unit is mounted on the air flotation chamber; the reset plate is connected to the drive unit; the arc plate is mounted on the reset plate; the inclined plate is mounted on the bottom of the arc plate and is located on the moving path of the discharge component; the bump block is mounted on the arc plate and is located on the moving path of the discharge component.

[0011] Preferably, the drive unit includes a second drive device, a bidirectional lead screw, a guide rod, and a thickness detection device; the second drive device is installed outside the air flotation chamber; the bidirectional lead screw is installed on the output shaft of the second drive device; the guide rod is installed on the air flotation chamber; the reset plate is threaded onto the surface of the bidirectional lead screw and movably sleeved on the guide rod; the thickness detection device is installed on top.

[0012] Preferably, the elongation mechanism includes a snap-fit ​​block, an elastic element three, a snap-fit ​​plate, and a scraper plate; the snap-fit ​​block is mounted on the vibrating block; the two ends of the elastic element three are respectively connected to the scraper plate and the snap-fit ​​plate; the elastic element three is located on the moving path of the snap-fit ​​block, and the snap-fit ​​block moves to the elastic element three and snaps into it; the scraper plate is mounted on the shield plate.

[0013] Preferably, the multi-stage treatment mechanism includes an aeration chamber, a slag collection chamber, a discharge pipe, a chemical precipitation chamber, a filter chamber, a water inlet pipe, and an aeration device; the aeration chamber is installed on the flotation chamber; the slag collection chamber is installed on the flotation chamber and is used to collect the slag pushed by the scraping component; the discharge pipe is installed at the bottom of the flotation chamber and is used to discharge the liquid inside the flotation chamber; the chemical precipitation chamber is connected to the output end of the discharge pipe; the filter chamber is connected to the output end of the chemical precipitation chamber; the water inlet pipe is connected to the bottom of the aeration chamber; and the aeration device is installed on the aeration chamber and is used to deliver air bubbles to the waste liquid inside the aeration chamber.

[0014] Preferably, the bottom end of the air flotation chamber is connected to an infusion device; the output end of the infusion device is connected to a spray unit; the bottom end of the spray unit is located on the air flotation chamber and is used to rinse and scrape the components.

[0015] Compared with the prior art, the above-mentioned technical solution of the present invention has the following beneficial technical effects: Waste liquid enters the aeration chamber through the inlet pipe. Then, a large number of microbubbles are injected into the inner cavity of the aeration chamber through the aeration equipment. The bubbles come into contact with the grease and other substances in the waste liquid and turn into scum. The scum floats on top of the waste liquid and then enters the flotation chamber through the baffle. The waste liquid at the bottom of the flotation chamber is then discharged into the chemical precipitation chamber through the discharge pipe. Chemical agents are added to precipitate the metal impurities in the chemical precipitation chamber. The waste liquid then enters the filtration chamber for filtration, thus realizing multi-stage purification treatment of waste liquid through oil removal, chemical precipitation, and filtration before discharge, promoting the development of environmental protection technology.

[0016] The start-up drive unit rotates the drive roller, which in turn drives the transmission unit, which in turn drives the scraper to push the scum in the flotation chamber towards the scum collection chamber. When the scraper moves to the arc plate, the distance between the two arc plates is close, the movable rod contacts the middle of the inclined plate and moves along the side of the inclined plate. At this time, the movable rod is pushed, which causes the first through hole to move to the second through hole. At this time, the scraper is above the scum collection chamber, which allows the scum adhering to the scraper to be discharged through the first through hole. Then, through the contact between the concave and convex blocks and the vibrating block, and the elasticity of the first elastic element, the scraper vibrates up and down when the vibrating block moves along the surface of the concave and convex blocks, which promotes the scum on the scraper to be shaken off from the second through hole into the scum collection chamber, thus achieving rapid cleaning of the scum on the scraper surface and ensuring that all the scum can fall into the scum collection chamber for discharge.

[0017] The thickness of the scum in the flotation chamber is detected by a thickness detection device. If the scum thickness increases, the second drive device is activated to rotate the bidirectional lead screw, thereby moving the reset plate towards both ends of the bidirectional lead screw, increasing the distance between the two arc-shaped plates. When the movable rod contacts the inclined plate again, it will contact the part of the inclined plate near the middle of the bidirectional lead screw. When the movable rod moves along the inclined plate, it will move along the entire inclined plate, thus increasing the moving distance of the movable rod. This, in turn, moves the baffle plate outward from the scraper, causing the scraper plate to extend beyond the scraper. The plate is locked in place by a snap-fit ​​block, ensuring that the extended scraper can adhere to the inner wall of the flotation chamber when the scraper removes scum from the chamber. This ensures that when there is a lot of scum due to increased oil and other impurities in the waste liquid, the scum can be pushed to the scum collection bin. When there is little scum, the scraper does not contact the inner wall of the flotation chamber, preventing friction between the scraper and the inner wall and thus extending its service life. This improves the economic efficiency of environmental protection technology development. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the air flotation chamber proposed in this invention; Figure 3 This is a schematic diagram of the discharge pipe proposed in this invention; Figure 4 This is a schematic diagram of the arc-shaped plate proposed in this invention; Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle; Figure 6 This is a schematic diagram of the structure of the shielding plate proposed in this invention; Figure 7 For the present invention Figure 6 Enlarged view of point B in the middle; Reference numerals: 1. Air flotation chamber; 2. Air injection chamber; 3. Slag collection chamber; 4. Discharge pipe; 5. Chemical precipitation chamber; 6. Filter chamber; 7. Water inlet pipe; 8. Air injection equipment; 9. Drive device one; 10. Drive roller; 11. Transmission unit; 12. Mounting plate; 13. Elastic component one; 14. Scraper; 15. Elastic component two; 16. Baffle plate; 17. Through hole one; 18. Through hole two; 19. Vibrating block; 20. Movable rod; 21. Drive device two; 22. Bidirectional lead screw; 23. Guide rod; 24. Reset plate; 25. Arc plate; 26. Slanted plate; 27. Concave and convex blocks; 28. Clamping block; 29. ​​Elastic component three; 30. Clamping plate; 31. Moving trough; 32. Infusion equipment; 33. Spraying unit; 34. Thickness detection equipment; 35. Scraper. Detailed Implementation

[0019] Example 1, as Figures 1-6 As shown, the present invention proposes a waste liquid purification and treatment device for cobalt chloride production and processing, comprising an air flotation chamber 1 and a multi-stage treatment mechanism; the multi-stage treatment mechanism is connected to the air flotation chamber 1 and is used for multi-stage purification and treatment of waste liquid, and includes a scraping mechanism installed in the air flotation chamber 1; an elongation mechanism installed on the scraping mechanism and used to scrape off the scum in the air flotation chamber 1; the scraping mechanism includes a drive component, a scraping component, a discharge component, and a control component; the drive component is installed on the air flotation chamber 1 and is used to drive the scraping component to move; the scraping component is installed on the drive component and is used to scrape off the scum in the air flotation chamber 1; the discharge component is installed inside the scraping component and causes the scum in the scraping component to be discharged; the drive component drives the scraping component to scrape off the scum in the air flotation chamber 1, and then provides the discharge component so that all the scum in the scraping component is discharged.

[0020] The drive assembly includes a drive device 9, a drive roller 10, and a transmission unit 11. The drive device 9 is installed outside the air flotation chamber 1. There are two drive rollers 10, which are respectively installed on the output shaft of the drive device 9 and rotatably connected to the air flotation chamber 1. The transmission unit 11 is sleeved on the two drive rollers 10. The scraping assembly is installed on the transmission unit 11. The transmission unit 11 can be a chain or the like. The drive rollers 10 can be sprockets, and the drive sprocket connected to the output shaft of the drive device 9 is a drive sprocket.

[0021] The scraping assembly includes a mounting plate 12, an elastic element 13, a scraper 14, a through hole 18, and a vibrating block 19. The mounting plate 12 is mounted on the transmission part 11. The two ends of the elastic element 13 are respectively connected to the mounting plate 12 and the scraper 14. The through hole 18 is formed on the scraper 14. The vibrating block 19 is mounted on the scraper 14. The top end of the scraper 14 is sleeved on the outer surface of the mounting plate 12. When the vibrating block 19 contacts the uneven outer surface of the uneven block 27, it moves along the uneven outer surface of the uneven block 27. At this time, due to the elastic element 13, the scraper 14 is scraped off. The elasticity of component 13 causes scraper 14 to vibrate up and down. When scraper 14 moves to the arc plate 25, it will also be above the slag collection bin 3. Scraper 14 is in an inclined and horizontal state. When through hole 18 and through hole 17 are connected, the scum can pass through through hole 17 and through hole 18 and be shaken into the slag collection bin 3, thereby collecting most of the scum on scraper 14 and preventing the scum from sticking to scraper 14 and causing the scum to not be completely recovered.

[0022] The discharge assembly includes an elastic element 15, a baffle plate 16, a through hole 17, a movable rod 20, and a moving groove 31. The moving groove 31 is located on the scraper 14. The two ends of the elastic element 15 are connected to the scraper 14 and the baffle plate 16, respectively. The through hole 17 is located on the baffle plate 16. The movable rod 20 is installed on the baffle plate 16 and moves within the moving groove 31. When the scum on the water in the flotation chamber 1 is thin or medium, the movable rod 20 contacts the middle of the inclined plate 26. At this time, the movable rod 20 moves only along half the path of the inclined plate 26 to the side of the inclined plate 26, thereby causing the baffle plate 16 to move the through hole 17 to the through hole 28. The through hole 17 and the through hole 28 are connected, thereby allowing the scum to fall off.

[0023] The control assembly includes a drive unit, a reset plate 24, an arc plate 25, an inclined plate 26, and a bump and recess 27. The drive unit is installed on the flotation chamber 1. The reset plate 24 is connected to the drive unit. The arc plate 25 is installed on the reset plate 24. The inclined plate 26 is installed at the bottom of the arc plate 25 and is located on the moving path of the discharge assembly. The bump and recess 27 is installed on the arc plate 25 and is located on the moving path of the discharge assembly. The arc plate 25 is arc-shaped and is located above the slag collection chamber 3, so that when the transmission unit 11 drives the scraper 14 to move to the arc plate 25, it also moves to the slag collection chamber 3.

[0024] The drive unit includes a second drive device 21, a bidirectional lead screw 22, a guide rod 23, and a thickness detection device 34. The second drive device 21 is installed outside the flotation chamber 1. The bidirectional lead screw 22 is installed on the output shaft of the second drive device 21. The guide rod 23 is installed on the flotation chamber 1. The reset plate 24 is threaded onto the surface of the bidirectional lead screw 22 and movably sleeved on the guide rod 23. The thickness detection device 34 is installed on the flotation chamber 1 and is used to detect the thickness of scum on the water. If the scum is thick, the arc plate 25 is activated to drive the inclined plate 26 to move towards both ends of the bidirectional lead screw 22, so that when the subsequent movable rod 20 moves along the inclined plate 26, it can move completely along the inclined plate 26, thereby increasing the moving distance of the movable rod 20.

[0025] Example 2, as Figure 5 and Figure 6As shown, the waste liquid purification and treatment device for cobalt chloride production and processing proposed in this invention, compared with Embodiment 1, the extension mechanism of this embodiment includes a snap-fit ​​block 28, an elastic element 29, a snap-fit ​​plate 30, and a scraper plate 35; the snap-fit ​​block 28 is installed on the vibrating block 19; the two ends of the elastic element 29 are respectively connected to the scraper plate 14 and the snap-fit ​​plate 30; the elastic element 29 is located on the moving path of the snap-fit ​​block 28, and the snap-fit ​​block 28 moves to the elastic element 29 and snaps into it; the scraper plate 35 is installed on the baffle plate 16; when the movable rod 20 moves along the complete inclined plate 26, the distance the baffle plate 16 moves increases, thereby causing the snap-fit ​​block 28 to snap into the elastic element 29, causing the scraper plate 35 to extend out of the scraper plate 14, and then the subsequent scraper plate 35... The scraper 35 can adhere to the inner wall of the flotation chamber 1, and only extends when the scum is thick because: the inner wall of the flotation chamber 1 may become uneven due to prolonged use, which would cause severe wear if the scraper 35 were constantly in contact with the inner wall; the inner wall of the flotation chamber 1 contains impurities, and if the scraper 35 were constantly in contact with the inner wall, it would also accelerate the wear of the scraper 35; in the existing technology, there is a certain gap between the scraper 14 and the inner wall of the flotation chamber 1. Although this increases the service life of the scraper 14, when the amount of scum increases, the amount of scum escaping through the gap between the scraper 14 and the flotation chamber 1 also increases, which leads to a decrease in the cleaning efficiency of scum when the scum is thick.

[0026] Example 3, as Figures 1-4 As shown, the waste liquid purification and treatment device for cobalt chloride production and processing proposed in this invention, compared with Embodiment 1, has a multi-stage treatment mechanism including an injection chamber 2, a slag collection chamber 3, a discharge pipe 4, a chemical precipitation chamber 5, a filter chamber 6, a water inlet pipe 7, and an injection device 8; the injection chamber 2 is installed on the flotation chamber 1; the slag collection chamber 3 is installed on the flotation chamber 1 and is used to collect the slag pushed by the scraping component; the discharge pipe 4 is installed at the bottom of the flotation chamber 1 and is used to discharge the liquid in the flotation chamber 1; the chemical precipitation chamber 5 is connected to the output end of the discharge pipe 4; the filter chamber 6 is connected to the output end of the chemical precipitation chamber 5; the water inlet pipe 7 is connected to the bottom of the injection chamber 2; the injection device 8 is installed on the injection chamber 2 and is used to supply the waste liquid into the cavity of the injection chamber 2. Bubble delivery; a partition 1 is installed between the flotation chamber 1 and the aeration chamber 2, and a partition 2 is installed between the flotation chamber 1 and the slag collection chamber 3; the waste liquid enters the aeration chamber 2 through the water inlet pipe 7, and then a large number of microbubbles are injected into the inner cavity of the aeration chamber 2 through the aeration device 8. The bubbles come into contact with the oil and other substances in the waste liquid and turn into scum. Subsequently, the scum floats on the top of the waste liquid, and then the waste liquid and scum enter the flotation chamber 1 through the partition 1; then the waste liquid at the bottom of the inner cavity of the flotation chamber 1 is discharged into the chemical precipitation chamber 5 through the discharge pipe 4, and then the metal impurities in the chemical precipitation chamber 5 are precipitated by adding chemical agents. Then the waste liquid enters the filtration chamber 6 for filtration, thereby realizing the multi-stage purification treatment of waste liquid by oil removal-chemical precipitation-filtration.

[0027] The bottom end of the flotation chamber 1 is connected to the infusion device 32; the output end of the infusion device 32 is connected to the spray section 33; the bottom end of the spray section 33 is located on the flotation chamber 1 and is used to rinse the scraping components; when the scraper 14 is driven by the transmission section 11 and the bottom is facing upward, the infusion device 32 is activated to extract the relatively clean waste liquid in the cavity of the flotation chamber 1 and spray it onto the surface of the scraper 14 through the spray section 33 for auxiliary cleaning; the drive device 1 9 and drive device 2 21 can be motors; the elastic element 1 13, elastic element 2 15 and elastic element 3 29 are composed of springs and telescopic rods, with the springs sleeved on the outer periphery of the telescopic rods.

[0028] In summary, in this invention, waste liquid enters the aeration chamber 2 through the inlet pipe 7. Then, the aeration device 8 is activated to introduce numerous tiny bubbles into the waste liquid within the aeration chamber 2. These bubbles adsorb oil and other impurities, turning them into scum that floats to the surface of the water and enters the flotation chamber 1. Simultaneously, the drive device 9 is activated, driving the drive roller 10 to rotate, which in turn drives the transmission unit 11. The transmission unit 11 drives the mounting plate 12 and the scraper 14 to rotate, thereby pushing the scum inside the flotation chamber 1 towards the scum collection chamber 3 via the scraper 14. When the scraper 14 moves to the arc-shaped plate 25, it is positioned above the scum collection chamber 3. At this point, the movable rod 20 contacts the middle of the inclined plate 26, and... The material moves along the inclined plate 26 to the side of the arc plate 25. At this time, the through hole 17 and the through hole 28 are connected. At the same time, the vibrating block 19 moves along the uneven surface of the arc plate 25. Through the elasticity of the elastic element 13, the scraper 14 is shaken back and forth, so that the scum on the scraper 14 is shaken into the scum collection bin 3 through the through hole 17 and the through hole 28 and discharged along the scum collection bin 3. After the scum in the waste liquid in the flotation bin 1 is discharged, the discharge pipe 4 is started to transport the waste liquid to the chemical precipitation bin 5. Then, chemical precipitation is carried out in the chemical precipitation bin 5. After that, the waste liquid enters the filter bin 6 for final filtration.

[0029] The thickness of the scum inside the flotation chamber 1 is detected by the thickness detection device 34. When the scum is thick, the drive device 21 is started to drive the bidirectional screw 22 to rotate, thereby driving the arc plate 25 to move along the bidirectional screw 22 and the guide rod 23 to both ends of the bidirectional screw 22. At this time, the distance between the two arc plates 25 will increase, so that the movable rod 20 will subsequently contact the part of the inclined plate 26 near the middle of the bidirectional screw 22. This allows the movable rod 20 to move along the inclined surface on the complete inclined plate 26 to the side of the inclined plate 26, thereby increasing the distance the movable rod 20 moves along the moving groove 31. This causes the locking block 28 to move to the elastic element 29 and engage with the elastic element 29. At this time, the scraper 35 extends out of the scraper 14 and can then fit against the inner wall of the flotation chamber 1, thereby preventing the scum from escaping from the gap between the scraper 14 and the inner wall of the flotation chamber 1, and improving the efficiency of scum cleaning when there is a lot of scum.

[0030] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A wastewater purification and treatment device for cobalt chloride production and processing, comprising an air flotation tank (1) and a multi-stage treatment mechanism; the multi-stage treatment mechanism is connected to the air flotation tank (1) and is used for multi-stage purification and treatment of the wastewater, characterized in that, Also includes: The scraping mechanism is installed inside the air flotation chamber (1); An elongation mechanism is mounted on a scraping mechanism and is used to scrape scum from the flotation chamber (1); The scraping mechanism includes a drive assembly, a scraping assembly, a discharge assembly, and a control assembly; the drive assembly is installed on the flotation chamber (1) and is used to drive the scraping assembly to move; the scraping assembly is installed on the drive assembly and is used to scrape the scum in the flotation chamber (1); the discharge assembly is installed inside the scraping assembly and causes the scum inside the scraping assembly to be discharged. The drive component drives the scraping component to scrape off the scum in the flotation chamber (1), and then provides the feeding component so that all the scum in the scraping component is discharged.

2. The waste liquid purification and treatment device for cobalt chloride production and processing according to claim 1, characterized in that, The drive assembly includes a drive device (9), a drive roller (10), and a transmission unit (11); the drive device (9) is installed outside the air flotation chamber (1); there are two drive rollers (10), which are respectively installed on the output shaft of the drive device (9) and rotatably connected to the air flotation chamber (1); the transmission unit (11) is sleeved on the two drive rollers (10); the scraping assembly is installed on the transmission unit (11).

3. The waste liquid purification and treatment device for cobalt chloride production and processing according to claim 2, characterized in that, The scraping assembly includes a mounting plate (12), an elastic element (13), a scraper (14), a through hole (18), and a vibrating block (19); the mounting plate (12) is mounted on the transmission part (11); the two ends of the elastic element (13) are connected to the mounting plate (12) and the scraper (14) respectively; the through hole (18) is opened on the scraper (14); the vibrating block (19) is mounted on the scraper (14).

4. The waste liquid purification and treatment device for cobalt chloride production and processing according to claim 3, characterized in that, The discharge assembly includes an elastic element 2 (15), a baffle plate (16), a through hole 1 (17), a movable rod (20), and a moving groove (31); the moving groove (31) is opened on the scraper (14); the two ends of the elastic element 2 (15) are respectively connected to the scraper (14) and the baffle plate (16); the through hole 1 (17) is opened on the baffle plate (16); the movable rod (20) is installed on the baffle plate (16) and moves within the moving groove (31).

5. The waste liquid purification and treatment device for cobalt chloride production and processing according to claim 3, characterized in that, The control components include a drive unit, a reset plate (24), an arc plate (25), an inclined plate (26), and a bump and recess (27); the drive unit is mounted on the air flotation chamber (1); the reset plate (24) is connected to the drive unit; the arc plate (25) is mounted on the reset plate (24); the inclined plate (26) is mounted on the bottom of the arc plate (25) and is located on the moving path of the discharge component; the bump and recess (27) is mounted on the arc plate (25) and is located on the moving path of the discharge component.

6. The waste liquid purification and treatment device for cobalt chloride production and processing according to claim 5, characterized in that, The drive unit includes a second drive device (21), a two-way lead screw (22), a guide rod (23), and a thickness detection device (34); the second drive device (21) is installed outside the air flotation chamber (1); the two-way lead screw (22) is installed on the output shaft of the second drive device (21); the guide rod (23) is installed on the air flotation chamber (1); the reset plate (24) is threaded to the surface of the two-way lead screw (22) and movably sleeved on the guide rod (23); the thickness detection device (34) is installed on top.

7. The waste liquid purification and treatment device for cobalt chloride production and processing according to claim 4, characterized in that, The elongation mechanism includes a snap-fit ​​block (28), an elastic element three (29), a snap-fit ​​plate (30), and a scraper plate (35); the snap-fit ​​block (28) is mounted on the vibrating block (19); the two ends of the elastic element three (29) are connected to the scraper plate (14) and the snap-fit ​​plate (30) respectively; the elastic element three (29) is located on the moving path of the snap-fit ​​block (28), and the snap-fit ​​block (28) moves to the elastic element three (29) and snaps with the elastic element three (29); the scraper plate (35) is mounted on the baffle plate (16).

8. The waste liquid purification and treatment device for cobalt chloride production and processing according to claim 1, characterized in that, The multi-stage treatment unit includes an air injection chamber (2), a slag collection chamber (3), a discharge pipe (4), a chemical precipitation chamber (5), a filter chamber (6), a water inlet pipe (7), and an air injection device (8); the air injection chamber (2) is installed on the flotation chamber (1); the slag collection chamber (3) is installed on the flotation chamber (1) and is used to collect the slag pushed by the scraping component; the discharge pipe (4) is installed at the bottom of the flotation chamber (1) and is used to discharge the liquid in the flotation chamber (1); the chemical precipitation chamber (5) is connected to the output end of the discharge pipe (4); the filter chamber (6) is connected to the output end of the chemical precipitation chamber (5); the water inlet pipe (7) is connected to the bottom of the air injection chamber (2); and the air injection device (8) is installed on the air injection chamber (2) and is used to deliver air bubbles to the waste liquid inside the air injection chamber (2).

9. The waste liquid purification and treatment device for cobalt chloride production and processing according to claim 1, characterized in that, The bottom end of the air flotation chamber (1) is connected to an infusion device (32); the output end of the infusion device (32) is connected to a spray section (33); the bottom end of the spray section (33) is located on the air flotation chamber (1) and is used to rinse and scrape the components.

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