Sorting device for nickel, cobalt and lithium in organic solvent and using method of sorting device

Abstract

The invention discloses a sorting device for nickel, cobalt and lithium in an organic solvent and a using method thereof.The sorting device comprises a rack, a hollow shaft is rotationally installed at one end of the rack, a separation barrel is fixedly connected to one end of the hollow shaft, a supporting shaft is fixedly connected to one end of the separation barrel, and the supporting shaft is rotationally installed at the other end of the interior of the rack; an adding pipe is fixedly installed on the surface of one end of the separating cylinder, a plug is installed at the end of the adding pipe in a threaded mode, a discharging cylinder is fixedly installed on the surface of one end of the separating cylinder, a cover plate is installed at one end of the discharging cylinder in a threaded mode, and an inclined flow guide plate is arranged on the surface of the inner side of the separating cylinder. The end of the inclined flow guide plate is located on the side face of the discharging barrel, a conical hopper is fixedly connected into the discharging barrel, materials can be added in a closed state to treat organic solvents, safety and stability are improved, separation and separation are facilitated, follow-up recycling is facilitated, practicability is high, and operation and use are facilitated.

Description

Technical Field

[0001] The present invention relates to the field of sports equipment, and more specifically, to a sorting device for nickel, cobalt and lithium in an organic solvent and a using method thereof. Background Art

[0002] With the rapid growth of electric vehicles and various electronic consumer products, the usage of lithium-ion batteries has also increased rapidly synchronously. For lithium-ion batteries, when the battery capacity drops to 80% of the initial capacity, it reaches its designed life and the battery will be scrapped. With the increase in the usage of batteries, the number of scrapped batteries is huge. If they are not recycled, it will inevitably cause waste of resources. Therefore, recycling and reusing metal resources such as cobalt, nickel, manganese, copper, and aluminum in lithium-ion batteries will generate considerable economic benefits; in addition, not recycling will also cause environmental problems, such as heavy metal pollution problems and electrolyte leakage poisoning problems.

[0003] In the sorting structure for nickel, cobalt and lithium, treating the organic solvent with a fixed sorting device not only is not conducive to separately treating different metal elements, but also is prone to mixing and affects the subsequent recycling quality, has poor adaptability, and cannot be rotated and adjusted to discharge materials separately, which is not conducive to management and is rather chaotic. Moreover, when treating the organic solution, the safety and stability are poor. There is a need to propose a new sorting device and method. Summary of the Invention

[0004] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a sorting device for nickel, cobalt and lithium in an organic solvent and a using method thereof. By rotatably installing a separation cylinder on a frame, and arranging a feeding pipe and a discharging cylinder, the position can be rotated and adjusted for separate treatment, reducing mixing and confusion. And materials can be added for treating the organic solvent in a closed state, improving safety and stability, facilitating sorting and precipitation, being convenient for subsequent recycling, having high practicability and being convenient for operation and use.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] A sorting device for nickel, cobalt and lithium in an organic solvent and a using method thereof, including a frame. One end of the frame is rotatably installed with a hollow shaft. One end of the hollow shaft is fixedly connected with a separation cylinder. One end of the separation cylinder is fixedly connected with a support shaft. The support shaft is rotatably installed at the other end inside the frame. One end surface of the separation cylinder is fixedly installed with a feeding pipe, and a plug is threadedly installed at the end of the feeding pipe. One end surface of the separation cylinder is fixedly installed with a discharging cylinder, and a cover plate is threadedly installed at one end of the discharging cylinder. An inclined guide plate is arranged on the inner side surface of the separation cylinder, and the end of the inclined guide plate is located at the side position of the discharging cylinder. A conical hopper is fixedly connected inside the discharging cylinder, and a through hole is arranged in the middle of the conical head;

[0007] A square tube is fixedly connected to the side of the discharge tube. A square rod is slidably installed inside the square tube. One end of the square rod is fixedly connected to a baffle plate, and the baffle plate is slidably connected to the lower surface of the conical hopper. The other end of the square rod is rotatably installed with a threaded rod, and the threaded rod is threadedly installed at the outer end of the square tube;

[0008] A stirring motor is fixedly installed on one side of the frame. One end of the stirring motor is rotatably installed with a stirring shaft, and the stirring shaft is rotatably installed inside the hollow shaft. Stirring rods are fixedly connected to the outer surface of the stirring shaft, and the stirring rods are rotatably installed inside the separation cylinder;

[0009] The usage method of this sorting device includes the following steps:

[0010] S1. Add organic solvent into the separation cylinder and adjust the liquid level height not to exceed the height position of the support shaft;

[0011] S2. Adjust the adding tube at the highest position, remove the plug, add hydrochloric acid solution with a concentration of 0.2 - 0.4 mol / L, control the stirring motor to drive the stirring shaft and the stirring rods to rotate, stir the organic solution, and carry out back-extraction treatment for 20 to 30 minutes;

[0012] S3. Then add sodium hydroxide solution with a concentration of 0.3 - 0.5 mol / L, continue to stir to neutralize the remaining hydrochloric acid, and precipitate the cobalt hydroxide-containing precipitate, which is guided by the inclined deflector plate to the discharge tube at the bottommost part. The sediment accumulates and discharges the solution inside the discharge tube to complete the collection of the sediment;

[0013] S4. Adjust the threaded rod to push the square rod and the baffle plate to slide, move to directly below the conical hopper to close the through hole, isolate the discharge tube and the separation cylinder, and retain the organic solution inside the separation cylinder;

[0014] S5. Open the bottom cover plate, take out the cobalt hydroxide sediment inside the discharge tube to complete the cobalt sorting;

[0015] S6. Close the adding tube at the highest position, drive the separation cylinder to rotate 120 degrees through the support shaft, adjust another discharge tube to the lowermost position, and open the corresponding adding tube, and add sulfuric acid solution with a concentration of 0.1 - 0.2 mol / L to react;

[0016] S7. Continuously stir to precipitate the sediment containing nickel sulfate, which falls into the newly adjusted discharge tube, and repeat the operation in step S4 for discharging to complete the nickel sorting;

[0017] S8. Finally, let the remaining solution stand. After the organic solution and water are stratified, first drain the water to separate the organic solution, and then evaporate the organic solution. The remaining sediment can complete the lithium sorting.

[0018] Further, one end of the support shaft is fixedly installed with a driven gear, and the driven gear is rotatably installed on one side of the outer surface of the frame.

[0019] Further, a driving gear is meshed with one side of the driven gear, and the driving gear is rotatably installed outside the frame.

[0020] Further, the driving gear is connected by a shaft to a driving motor, and the driving motor is fixedly installed on one side inside the frame. By installing the driven gear through the support shaft and combining with the installation of the driving gear by the driving motor, positioning can be achieved through meshing at the end position, which is beneficial for driving control to drive the separation cylinder to turn and adjust, being efficient and stable, and facilitating installation and use.

[0021] Further, a receiving groove is fixedly connected to one end inside the frame, and a recovery pipe is fixedly installed at one end of the receiving groove. The receiving groove is located directly below the discharge pipe. By connecting the receiving groove and the recovery pipe at the bottom, while receiving the sediment, a small amount of solution can be recovered, which is convenient for repeated treatment, improves safety and stability, and is beneficial for combined use.

[0022] Further, an inclined plate is fixedly connected to the inside of the receiving groove, and an opening is provided at one end of the inclined plate.

[0023] Further, a reflux baffle is fixedly connected to one side of the opening, and the reflux baffle is fixedly connected to one end inside the receiving groove. By providing the inclined plate and installing the reflux baffle at the opening, the solution can be received while the sediment is taken out in a closed manner, avoiding mutual interference, being efficient and stable, and facilitating production use.

[0024] Further, there are three adding pipes and discharge cylinders respectively, and they are evenly distributed on the outer surface of the separation cylinder.

[0025] Further, the inclined guide plate is attached to the inner surface of the separation cylinder and is aligned with the inside of one side of the discharge cylinder one by one. By evenly distributing multiple discharge cylinders and adding pipes, addition treatment can be carried out correspondingly, and for different sediments, they can be processed separately, reducing mixing, being beneficial for recycling, and being accurate and efficient.

[0026] Compared with the prior art, the advantages of the present invention are as follows:

[0027] (1) In this solution, the separation cylinder is rotatably installed through the frame, and the adding pipe and the discharge cylinder are provided. The position can be rotated and adjusted for separate treatment, reducing mixing and confusion. Moreover, materials can be added for processing organic solvents in a closed state, improving safety and stability, being beneficial for sorting and precipitation, facilitating subsequent recovery, having high practicability, and being convenient for operation and use.

[0028] (2) Install the driven gear through the support shaft and install the driving gear in combination with the driving motor, which can be meshed and positioned from the end position, facilitating driving control to drive the separation cylinder to turn and adjust, being efficient and stable, and facilitating installation and use.

[0029] (3) Connect the receiving groove and the recovery pipe at the bottom, which can recover a small amount of solution while receiving the sediment, facilitating repeated treatment, improving safety and stability, and facilitating combined use.

[0030] (4) By setting the inclined plate and setting the opening to install the reflux baffle, the solution can be received, and at the same time, the sediment can be taken out in a closed manner, avoiding mutual influence and interference, being efficient and stable, and convenient for production and use.

[0031] (5) By distributing multiple discharge cylinders and adding pipes at equal intervals, addition treatment can be carried out corresponding to each other, and for different sediments, they can be treated separately, reducing mixing, being conducive to recycling, and being precise and efficient. Description of the Drawings

[0032] Figure 1 is the overall structural schematic diagram of the present invention;

[0033] Figure 2 is the plane structural cross-sectional schematic diagram of the present invention;

[0034] Figure 3 is the partial cross-sectional view of the connection of the discharge pipe of the present invention;

[0035] Figure 4 is the partial cross-sectional view of the connection of the square rod and the baffle of the present invention;

[0036] Figure 5 is the side schematic diagram of the present invention;

[0037] Figure 6 is the partial structural diagram of the connection of the support shaft and the driven gear of the present invention;

[0038] Figure 7 is the structural diagram of the connection of the receiving groove and the inclined plate of the present invention.

[0039] Explanation of the reference numerals in the drawings:

[0040] 1 Frame, 11 Hollow shaft, 12 Separation cylinder, 13 Support shaft, 14 Adding pipe, 15 Discharge pipe, 16 Inclined diversion plate, 17 Cover plate, 18 Conical hopper, 19 Through hole, 2 Square cylinder, 21 Square rod, 22 Baffle, 23 Threaded rod, 24 Stirring motor, 25 Stirring shaft, 26 Stirring rod, 27 Driven gear, 28 Driving gear, 29 Driving motor, 3 Receiving groove, 31 Recovery pipe, 32 Inclined plate, 33 Opening, 34 Reflux baffle. Detailed Embodiments

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the protection scope of the present invention.

[0042] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , a sorting device and a using method thereof for nickel, cobalt and lithium in an organic solvent, including a frame 1. One end of the frame 1 is rotatably installed with a hollow shaft 11. One end of the hollow shaft 11 is fixedly connected with a separation cylinder 12. One end of the separation cylinder 12 is fixedly connected with a support shaft 13, which can support the rotation of the separation cylinder 12, facilitating control and use. The support shaft 13 is rotatably installed at the other end inside the frame 1. One end surface of the separation cylinder 12 is fixedly installed with a feeding pipe 14. The end of the feeding pipe 14 is threadedly installed with a plug. One end surface of the separation cylinder 12 is fixedly installed with a discharge cylinder 15, which can receive sediments and discharge them from the bottom for treatment, and will not cause solution leakage, facilitating continuous treatment operation and convenient sorting use. One end of the discharge cylinder 15 is threadedly installed with a cover plate 17. An inclined guide plate 16 is arranged on the inner surface of the separation cylinder 12. The end of the inclined guide plate 16 is located at the side position of the discharge cylinder 15. A conical hopper 18 is fixedly connected inside the discharge cylinder 15. A through hole 19 is arranged in the middle of the conical head 18. Sediments can enter the inside of the conical hopper 18 and then fall into the discharge cylinder 15 through the through hole 19 for accumulation, facilitating separation treatment;

[0043] A square cylinder 2 is fixedly connected to the side of the discharge cylinder 15. A square rod 21 is slidably installed inside the square cylinder 2. One end of the square rod 21 is fixedly connected with a baffle 22. The baffle 22 is slidably connected to the lower surface of the conical hopper 18. The other end of the square rod 21 is rotatably installed with a threaded rod 23. The threaded rod 23 is threadedly installed at the outer end of the square cylinder 2. The threaded rod 23 can be manually rotated to push the square rod 21 to slide, and a sealing gasket is connected at the sliding connection position to avoid solution leakage, and the baffle 22 can be pushed to tightly press against the position below the through hole 19 for sealing and isolation, facilitating discharging, with safety and stability;

[0044] A stirring motor 24 is fixedly installed on one side of the frame 1. One end of the stirring motor 24 is rotatably installed with a stirring shaft 25. The stirring shaft 25 is rotatably installed inside the hollow shaft 11. Stirring rods 26 are fixedly connected to the outer surface of the stirring shaft 25. The stirring rods 26 are rotatably installed inside the separation cylinder 12. By rotating the stirring shaft 25 inside the hollow shaft 11, stirring can be controlled independently, and it will not interfere with the rotation and angle adjustment of the separation cylinder 12, with high adaptability, safety and stability;

[0045] The usage method of this sorting device includes the following steps:

[0046] S1. Add organic solvent into the inside of the separation cylinder 12, and adjust the liquid level height not to exceed the height position of the support shaft 13;

[0047] S2. Adjust the adding pipe 14 at the highest position, remove the plug, add hydrochloric acid solution with a concentration of 0.2 - 0.4 mol / L, control the stirring motor 24 to drive the stirring shaft 25 and the stirring rod 26 to rotate, stir the organic solution, and continue for 20 to 30 minutes for back-extraction treatment;

[0048] S3. Then add sodium hydroxide solution with a concentration of 0.3 - 0.5 mol / L, continue to stir to neutralize the remaining hydrochloric acid, and precipitate the cobalt hydroxide-containing precipitate, which is guided by the inclined deflector 16 to the bottom discharge cylinder 15 inside. The sediment accumulates to drain the solution inside the discharge cylinder 15 to complete the collection of the sediment;

[0049] S4. Adjust the threaded rod 23 to push the square rod 21 and the baffle 22 to slide, move to the position directly below the conical hopper 18 to close the through hole 19, isolate the discharge cylinder 15 and the separation cylinder 12, and retain the organic solution inside the separation cylinder 12;

[0050] S5. Open the bottom cover plate 17, take out the cobalt hydroxide sediment inside the discharge cylinder 15 to complete the cobalt sorting;

[0051] S6. Close the adding pipe 14 at the highest position, drive the separation cylinder 12 to rotate 120 degrees through the support shaft 13, adjust another discharge cylinder 15 to the lowest position, and open the corresponding adding pipe 14, and add sulfuric acid solution with a concentration of 0.1 - 0.2 mol / L for reaction;

[0052] S7. Continuously stir to precipitate the sediment containing nickel sulfate, which falls into the newly adjusted discharge cylinder 15 inside, and repeat the operation in step S4 for discharging to complete the nickel sorting;

[0053] S8. Finally, let the remaining solution stand still. After the organic solution and water are layered, first drain the water and separate the organic solution, and then evaporate the organic solution. The remaining sediment can complete the lithium sorting.

[0054] Please refer to Figure 5 and Figure 6, one end of the support shaft 13 is fixedly installed with a driven gear 27. The driven gear 27 is rotatably installed on one side of the outer surface of the frame 1. One side of the driven gear 27 meshes with a driving gear 28. The driving gear 28 is rotatably installed outside the frame 1. The driving gear 28 is connected by a shaft to a driving motor 29. The driving motor 29 is selected as a motor with a brake, which can brake after rotating and moving an angle to avoid loosening, improve the safety and stability after the angle adjustment of the separation cylinder 12. The driving motor 29 is fixedly installed on one side inside the frame 1. By installing the driven gear through the support shaft and the driving gear by installing the driving motor, meshing and positioning can be carried out from the end position, which is conducive to driving control to turn and adjust the separation cylinder, with high efficiency and stability, and is conducive to installation and use.

[0055] Please refer to Figure 1 , Figure 2 and Figure 7 , one end inside the frame 1 is fixedly connected with a receiving groove 3. One end of the receiving groove 3 is fixedly installed with a recovery pipe 31. The receiving groove 3 is located directly below the discharge pipe 15. By connecting the receiving groove and the recovery pipe at the bottom, while receiving the sediment, a small amount of solution can be recovered, which is convenient for repeated treatment, improves safety and stability, and is conducive to combined use. An inclined plate 32 is fixedly connected inside the receiving groove 3. One end of the inclined plate 32 is provided with an opening 33. One side of the opening 33 is fixedly connected with a reflux baffle 34. The reflux baffle 34 is fixedly connected to one end inside the receiving groove 3. By setting the inclined plate and installing the reflux baffle at the opening, the solution can be received, and at the same time, the sediment can be taken out in a closed manner, avoiding mutual influence and interference, with high efficiency and stability, and convenient for production use. When discharging downward from the discharge cylinder 15, the sediment is mixed with part of the solution and flows out into the receiving groove 3. The sediment accumulates on the inclined plate 32. The solution flows downward relatively fast. After staying at the opening position, it is blocked by the reflux baffle 34 and can flow back into the receiving groove 3, which is convenient to be pumped out from the recovery pipe 31 at the other end, and then re-added to the separation cylinder 12 for re-treatment, which is convenient and efficient. Then the separated sediment can be taken out for subsequent operations, which is convenient and stable.

[0056] Please refer to Figure 1 , Figure 2 and Figure 5 , there are three adding pipes 14 and discharge cylinders 15, and they are equally spaced on the outer surface of the separation cylinder 12. The inclined guide plate 16 fits on the inner surface of the separation cylinder 12 and is aligned with the inner side of the discharge cylinder 15 one by one. By equally spacing multiple discharge cylinders and adding pipes, addition treatment can be carried out corresponding to each other, and for different sediments, they can be treated separately, reducing mixing, which is conducive to recycling, accurate and efficient.

[0057] The above are only the preferred specific embodiments of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, making equivalent substitutions or changes should be covered by the protection scope of the present invention.

Claims

1. A sorting device for nickel, cobalt and lithium in an organic solvent, comprising a frame (1), characterized in that: One end of the frame (1) is rotatably installed with a hollow shaft (11). One end of the hollow shaft (11) is fixedly connected with a separation cylinder (12). One end of the separation cylinder (12) is fixedly connected with a support shaft (13). The support shaft (13) is rotatably installed at the other end inside the frame (1). One end surface of the separation cylinder (12) is fixedly installed with an addition pipe (14). A plug is threadedly installed at the end of the addition pipe (14). One end surface of the separation cylinder (12) is fixedly installed with a discharge cylinder (15). A cover plate (17) is threadedly installed at one end of the discharge cylinder (15). An inclined guide plate (16) is arranged on the inner side surface of the separation cylinder (12). The end of the inclined guide plate (16) is located at the side position of the discharge cylinder (15). A conical hopper (18) is fixedly connected inside the discharge cylinder (15). A through hole (19) is arranged in the middle of the conical head (18); A square cylinder (2) is fixedly connected to the side of the discharge cylinder (15). A square rod (21) is slidably installed inside the square cylinder (2). One end of the square rod (21) is fixedly connected with a baffle (22). The baffle (22) is slidably connected to the lower surface of the conical hopper (18). The other end of the square rod (21) is rotatably installed with a threaded rod (23). The threaded rod (23) is threadedly installed at the outer end of the square cylinder (2); A stirring motor (24) is fixedly installed on one side of the frame (1). One end of the stirring motor (24) is rotatably installed with a stirring shaft (25). The stirring shaft (25) is rotatably installed inside the hollow shaft (11). Stirring rods (26) are fixedly connected to the outer surface of the stirring shaft (25). The stirring rods (26) are rotatably installed inside the separation cylinder (12); The operation method of this sorting device includes the following steps: S1. Add an organic solvent into the separation cylinder (12), and adjust the liquid level height not to exceed the height position of the support shaft (13); S2. Adjust the addition pipe (14) at the highest position, remove the plug, add a hydrochloric acid solution with a concentration of 0.2 - 0.4 mol / L, control the stirring motor (24) to drive the stirring shaft (25) and the stirring rods (26) to rotate, stir the organic solution for 20 to 30 minutes, and perform back-extraction treatment; S3. Then add a sodium hydroxide solution with a concentration of 0.3 - 0.5 mol / L, continue to stir to neutralize the remaining hydrochloric acid, and precipitate a cobalt hydroxide-containing precipitate, which is guided by the inclined guide plate (16) to the bottommost discharge cylinder (15) inside. The sediment accumulates to drain the solution inside the discharge cylinder (15), and the sediment collection is completed; S4. Adjust the threaded rod (23) to push the square rod (21) and the baffle (22) to slide, move to directly below the conical hopper (18) to close the through hole (19), isolate the discharge cylinder (15) from the separation cylinder (12), and retain the organic solution inside the separation cylinder (12); S5. Open the cover plate (17) at the bottom, take out the cobalt hydroxide sediment inside the discharge cylinder (15), and complete the cobalt sorting; S6. Close the addition pipe (14) at the highest position. Rotate the separation cylinder (12) by 120 degrees through the support shaft (13), adjust the other discharge cylinder (15) to the lowest position, and open the addition pipe (14) opposite thereto. React by adding a sulfuric acid solution with a concentration of 0.1 - 0.2 mol / L. S7. Continuously stir to precipitate the sediment containing nickel sulfate, which falls into the newly adjusted discharge cylinder (15) inside, and repeat the operation in step S4 for discharging to complete the separation of nickel. S8. Finally, let the remaining solution stand. After separating the organic solution and water layers, first drain the water to separate the organic solution, and then evaporate the organic solution. The remaining sediment can complete the separation of lithium.

2. The sorting device for nickel, cobalt and lithium in an organic solvent according to claim 1, characterized in that: One end of the support shaft (13) is fixedly installed with a driven gear (27), and the driven gear (27) is rotatably installed on one side of the outer surface of the frame (1).

3. The sorting device for nickel, cobalt and lithium in an organic solvent according to claim 2, wherein: One side of the driven gear (27) is engaged with a driving gear (28), and the driving gear (28) is rotatably installed outside the frame (1).

4. A sorting device for nickel, cobalt, and lithium in an organic solvent according to claim 3, characterized in that: The driving gear (28) is connected by a shaft to a driving motor (29), and the driving motor (29) is fixedly installed on one side inside the frame (1).

5. An apparatus for separating nickel, cobalt and lithium in an organic solvent according to claim 1, characterized in that: One end inside the frame (1) is fixedly connected with a receiving groove (3). One end of the receiving groove (3) is fixedly installed with a recovery pipe (31). The receiving groove (3) is located directly below the discharge pipe (15).

6. The sorting device for nickel, cobalt and lithium in an organic solvent according to claim 5, wherein: An inclined plate (32) is fixedly connected inside the receiving groove (3), and one end of the inclined plate (32) is provided with an opening (33).

7. A sorting device for nickel, cobalt and lithium in an organic solvent according to claim 6, characterized in that: One side of the opening (33) is fixedly connected with a reflux baffle (34), and the reflux baffle (34) is fixedly connected to one end inside the receiving groove (3).

8. The sorting device for nickel, cobalt and lithium in an organic solvent according to claim 1, wherein: There are three addition pipes (14) and discharge cylinders (15) respectively, and they are equally spaced on the outer surface of the separation cylinder (12).

9. The sorting device for nickel, cobalt and lithium in an organic solvent according to claim 1, characterized in that: The inclined deflector (16) fits on the inner surface of the separation cylinder (12) and is aligned one by one with the inside of the discharge cylinder (15).

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