Separating device for impurity removal of regenerated lithium iron phosphate positive electrode

Abstract

The utility model discloses a separation device for removing impurities from a regenerated lithium iron phosphate positive electrode in the technical field of separation devices, which comprises a separator main body, a filter body assembled on the side wall of the separator main body, a fixed bracket assembled on the side wall of the separator main body, a support frame assembled at the top end of the fixed bracket, and a fixed hoop assembled at the top end of the support frame, a feeding tank is assembled in the fixing hoop, a bearing plate is assembled in the feeding tank, a rotating hole is formed in the middle section of the side wall of the bearing plate, a rotating shaft is installed in the rotating hole, stirring rods are assembled on the left side and the right side of the exterior of the rotating shaft, a driving hole is formed in the side wall of the feeding tank, a driving shaft is assembled in the driving hole, and a driving bevel gear is installed at the end of the driving shaft. The rotating shaft is sleeved with a driven bevel gear. According to the regenerated lithium iron phosphate, different auxiliary agents are injected into the feeding tank, are fully stirred through the stirring mechanism arranged in the feeding tank, and are injected into the separator main body, so that the overall separation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of separation devices, in particular to a separation device for removing impurities from a regenerated lithium iron phosphate positive electrode. Background Art

[0002] Lithium-ion batteries have been widely used in electronic devices and electric vehicles due to their high energy density, long cycle life, and high operating voltage. Currently, the main cathode materials for lithium-ion batteries are lithium iron phosphate and nickel-cobalt-manganese ternary materials. Lithium iron phosphate has a theoretical specific capacity of 170mAh / g and can be cycled over 2,000 times. It is widely used in new energy vehicles and energy storage batteries. When handling lithium batteries, practical separation devices are required.

[0003] However, the separation device in the existing technology still has some shortcomings. For example, during the separation process, separation auxiliary agents need to be added to the box lithium battery materials. The traditional separation device is not convenient for adding auxiliary agents to the separator, which affects the separation efficiency. Therefore, the existing technology needs to be improved. Summary of the Invention

[0004] The purpose of the present utility model is to provide a separation device for removing impurities from regenerated lithium iron phosphate positive electrodes, so as to solve the problem proposed in the above background technology that during the separation process, a separation auxiliary agent needs to be added to the box lithium battery material, and the traditional separation device is not convenient for adding the auxiliary agent to the separator, which affects the separation efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a separation device for removing impurities from a regenerated lithium iron phosphate positive electrode, comprising a separator body, the side wall of the separator body is equipped with a filter body, the side wall of the separator body is equipped with a fixing bracket, the top of the fixing bracket is equipped with a support bracket, the top of the support bracket is equipped with a fixing hoop, the interior of the fixing hoop is equipped with a feeding tank, the interior of the feeding tank is equipped with a carrying plate, the middle section of the side wall of the carrying plate is provided with a rotating hole, and a rotating shaft is installed in the rotating hole, stirring rods are installed on the left and right sides of the outside of the rotating shaft, a driving hole is provided in the side wall of the feeding tank, a driving shaft is installed in the driving hole, an active bevel gear is installed at the end of the driving shaft, a driven bevel gear is sleeved on the outside of the rotating shaft, the active bevel gear and the driven bevel gear are meshed, the outer wall of the feeding tank is equipped with a motor a, the driving shaft is connected to the driving end of the motor a, the top of the feeding tank is equipped with a pipe rack, and a filling pipe is installed in the pipe rack.

[0006] Preferably, the bottom end of the feeding tank is equipped with a discharge pipe, the top end of the fixing bracket is provided with a through hole, and the through hole is provided at the upper end of the separator body.

[0007] Preferably, both side outer walls of the separator body are installed with U-shaped seats, the interior of the U-shaped seat is equipped with a spiral rod, the exterior of the spiral rod is screwed with an inner screw plate, and the end of the separation scraper is connected to the inner screw plate.

[0008] Preferably, the outer side wall of the U-shaped seat is equipped with a motor b, and the end of the spiral rod is connected to the driving end of the motor b.

[0009] Preferably, a filter frame is installed at the top of the filter body, a filter screen is installed inside the filter frame, a flip shaft is installed on the side wall of the filter frame, and a discharge port is opened at the connection between the separator body and the filter body.

[0010] Preferably, a motor c is installed on the outer wall of the filter body, and the flip shaft is connected to the driving end of the motor c.

[0011] Preferably, a discharge pipe is installed at the lower end of the outer wall of the separator body.

[0012] Compared with the prior art, the beneficial effects of the present invention are: the separation device for removing impurities from the regenerated lithium iron phosphate positive electrode has a reasonable structural design;

[0013] By setting a fixed bracket at the top of the separator, setting a feeding tank on the fixed bracket, and setting multiple groups of filling pipes on the feeding tank, different auxiliary agents can be added into the feeding tank, fully stirred by the stirring mechanism set inside, and then added into the separator body, thereby improving the overall separation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the fixing bracket of the utility model;

[0016] Figure 3 This is a schematic diagram of the interior of the feeding tank of the utility model;

[0017] Figure 4 This is a schematic structural diagram of part A of the utility model.

[0018] In the figure: 1. separator body; 2. fixing bracket; 3. inner screw plate; 4. screw rod; 5. U-shaped seat; 6. motor b; 7. separation scraper; 8. discharge pipe; 9. discharge port; 10. filter body; 11. filter frame; 12. flip shaft; 13. through hole; 14. discharge pipe; 15. pipe rack; 16. stuffing pipe; 17. feeding tank; 18. fixing hoop; 19. support frame; 20. stirring rod; 21. rotating shaft; 22. bearing plate; 23. driven bevel gear; 24. driving bevel gear; 25. driving hole; 26. driving shaft; 27. motor a; 28. motor c. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-4 , the utility model provides a technical solution:

[0021] In this technical solution, a separation device for removing impurities from a regenerated lithium iron phosphate positive electrode comprises a separator body 1, the side wall of the separator body 1 is equipped with a filter body 10, the side wall of the separator body 1 is equipped with a fixed bracket 2, the fixed bracket 2 is equipped with a support frame 19, the top of the support frame 19 is equipped with a fixed hoop 18, the interior of the fixed hoop 18 is equipped with a feeding tank 17, the interior of the feeding tank 17 is equipped with a supporting plate 22, the middle section of the side wall of the supporting plate 22 is provided with a rotating hole, and a rotating shaft 21 is installed in the rotating hole, the rotating shaft The left and right sides of the outside of 21 are equipped with stirring rods 20, the side wall of the feeding tank 17 is provided with a driving hole 25, the driving hole 25 is equipped with a driving shaft 26, the end of the driving shaft 26 is installed with a driving bevel gear 24, the outside of the rotating shaft 21 is sheathed with a driven bevel gear 23, the driving bevel gear 24 and the driven bevel gear 23 are meshed, the outer wall of the feeding tank 17 is equipped with a motor a27, the driving shaft 26 is connected to the driving end of the motor a27, the top of the feeding tank 17 is equipped with a pipe rack 15, and the pipe rack 15 is equipped with a filling pipe 16;

[0022] In this technical solution, separation liquid is added to the interior of the separator body 1, and lithium battery crushed material is added to the interior of the separator body 1, and the auxiliary agent to be added is added to the interior of the feeding tank 17 through the filling tube 16, and it is stirred by the stirring rod 20, and the stirring is driven by the motor a27 through the engagement of the active bevel gear 24 and the driven bevel gear 23.

[0023] In some technical solutions, reference Figure 1-4 The bottom end of the feeding tank 17 is equipped with a discharge pipe 14, and the top end of the fixing bracket 2 is provided with a through hole 13, which is provided at the upper end of the separator body 1;

[0024] In this technical solution, a valve is provided on the discharge pipe 14 , and the auxiliary rack after stirring can be added into the interior of the separator body 1 at the through hole 13 .

[0025] In some technical solutions, reference Figure 1-4, U-shaped seats 5 are installed on the outer walls of both sides of the separator body 1, a spiral rod 4 is assembled inside the U-shaped seat 5, the outer part of the spiral rod 4 is screwed with an inner screw plate 3, and the end of the separation scraper 7 is connected to the inner screw plate 3;

[0026] In this technical solution, the spiral rod 4 can rotate inside the U-shaped seat 5, and then cooperate with the inner spiral plate 3 threadedly connected to it. When the spiral rod 4 rotates, the inner spiral plate 3 can move laterally outside it, and drive the separation scraper 7 to move on the surface of the separated liquid inside the separator body 1, scraping the separated impurities into the filter body 10.

[0027] In some technical solutions, reference Figure 1-4 , the outer side wall of the U-shaped seat 5 is equipped with a motor b6, and the end of the screw rod 4 is connected to the driving end of the motor b6;

[0028] In this technical solution, the motor b6 is a forward and reverse motor that can drive the screw rod 4 to rotate forward and reverse.

[0029] In some technical solutions, reference Figure 1-4 The top of the filter body 10 is equipped with a filter frame 11, a filter screen is installed inside the filter frame 11, a flip shaft 12 is installed on the side wall of the filter frame 11, and a discharge port 9 is opened at the connection between the separator body 1 and the filter body 10;

[0030] In this technical solution, the separated impurities are scraped into the filter frame 11 through the discharge port 9 by the separation scraper 7 for filtration, and then the filter frame 11 is turned over by the turning shaft 12 to remove the surface impurities.

[0031] In some technical solutions, reference Figure 1-4 , a motor c28 is installed on the outer wall of the filter body 10, and the flip shaft 12 is connected to the driving end of the motor c28;

[0032] In this technical solution, the motor c28 is a forward and reverse motor that drives the flip shaft 12 to flip.

[0033] In some technical solutions, reference Figure 1-4 , a discharge pipe 8 is assembled at the lower end of the outer wall of the separator body 1;

[0034] In this technical solution, a valve is provided on the discharge pipe 8 to discharge the raw materials in the separator body 1 .

[0035] Working principle: First, the lithium battery raw materials to be separated are added to the interior of the separator body 1, and then the separation liquid is added thereto, and the separation liquid is brought into contact with the separation scraper 7 for separation. At the same time, the auxiliary agent is added to the interior of the feeding tank 17 and stirred by the motor a 27. After stirring, it is added to the interior of the separator body 1 for separation. After separation, the separation scraper 7 is controlled by the motor b6 to move on the surface of the separation liquid, and the impurities are scraped into the filter frame 11 at the upper end of the filter body 10 for filtration. Finally, the filter frame 11 is flipped over by the motor c2 to remove the impurities.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0037] While the present invention has been described above with reference to exemplary embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the disclosed embodiments may be combined with one another in any manner. The omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A separation device for removing impurities from a regenerated lithium iron phosphate positive electrode, comprising a separator body (1), characterized in that: The side wall of the separator body (1) is equipped with a filter body (10), the side wall of the separator body (1) is equipped with a fixing bracket (2), the top of the fixing bracket (2) is equipped with a support frame (19), the top of the support frame (19) is equipped with a fixing hoop (18), the interior of the fixing hoop (18) is equipped with a feeding tank (17), the interior of the feeding tank (17) is equipped with a supporting plate (22), a rotating hole is opened in the middle section of the side wall of the supporting plate (22), and a rotating shaft (21) is installed in the rotating hole, and stirring rods (20) are equipped on the left and right sides of the outside of the rotating shaft (21). A driving hole (25) is provided on the side wall of the feeding tank (17), a driving shaft (26) is installed in the driving hole (25), an active bevel gear (24) is installed at the end of the driving shaft (26), a driven bevel gear (23) is sleeved on the outside of the rotating shaft (21), the active bevel gear (24) and the driven bevel gear (23) are meshed, a motor a (27) is installed on the outer wall of the feeding tank (17), the driving shaft (26) is connected to the driving end of the motor a (27), a pipe rack (15) is installed at the top end of the feeding tank (17), and a stuffing pipe (16) is installed in the pipe rack (15).

2. A separation device for removing impurities from a regenerated lithium iron phosphate positive electrode according to claim 1, characterized in that: The bottom end of the feeding tank (17) is equipped with a discharge pipe (14), the top end of the fixing bracket (2) is provided with a through hole (13), and the through hole (13) is provided at the upper end of the separator body (1).

3. The separation device for removing impurities from a regenerated lithium iron phosphate positive electrode according to claim 1, characterized in that: U-shaped seats (5) are installed on both sides of the outer wall of the separator body (1), and a spiral rod (4) is assembled inside the U-shaped seat (5). The outer part of the spiral rod (4) is screwed with an inner screw plate (3), and the end of the separation scraper (7) is connected to the inner screw plate (3).

4. A separation device for removing impurities from a regenerated lithium iron phosphate positive electrode according to claim 3, characterized in that: The outer side wall of the U-shaped seat (5) is equipped with a motor b (6), and the end of the screw rod (4) is connected to the driving end of the motor b (6).

5. The separation device for removing impurities from a regenerated lithium iron phosphate positive electrode according to claim 1, characterized in that: The top of the filter body (10) is equipped with a filter frame (11), a filter screen is installed inside the filter frame (11), a flip shaft (12) is installed on the side wall of the filter frame (11), and a discharge port (9) is provided at the connection between the separator body (1) and the filter body (10).

6. A separation device for removing impurities from a regenerated lithium iron phosphate positive electrode according to claim 5, characterized in that: A motor c (28) is installed on the outer wall of the filter body (10), and the flip shaft (12) is connected to the driving end of the motor c (28).

7. The separation device for removing impurities from a regenerated lithium iron phosphate positive electrode according to claim 1, characterized in that: A discharge pipe (8) is mounted at the lower end of the outer wall of the separator body (1).

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