A mixing device for additive based on prelithiation lithium battery precursor production

Abstract

This utility model discloses a mixing device for additives in the production of pre-lithiated lithium battery precursors, relating to the field of additive mixing technology. The utility model includes a mixing tank, a filter box fixedly installed on one side of the upper surface of the mixing tank, and a crushing box fixedly installed on the side of the filter box. The discharge ports at the bottom of the filter box and the crushing box are connected to the inlet of the mixing tank, and the discharge port on the side of the filter box is connected to the inlet on the side of the crushing box. A filter frame is slidably installed inside the filter box, and two movable seats are slidably installed on both sides inside the crushing box. A crushing roller is rotatably installed in the two movable seats. This utility model uses a filter frame to filter the additives, preventing agglomerated additives from directly entering the mixing tank and affecting the mixing of the additives, thus improving mixing efficiency. Furthermore, the cooperation between a cam and a spring drives the filter frame to move up and down reciprocally, improving filtration efficiency and reducing the phenomenon of filter pore blockage.

Description

Technical Field

[0001] This utility model relates to the field of additive mixing technology, specifically to a mixing device for additives based on the production of pre-lithiated lithium battery precursors. Background Technology

[0002] Lithium battery additives are mainly divided into two categories: electrolyte additives and electrode material additives. They are used to improve the energy density, cycle life, safety, and high and low temperature adaptability of lithium batteries, and are one of the key links in the optimization of lithium battery technology.

[0003] Currently, the electrode material additives for lithium batteries require mixing before use. Since the additives are usually in powder form, some additives tend to clump together during mixing, requiring prolonged stirring to break up the clumps and affecting mixing efficiency. Furthermore, when breaking up the clumps, it is not possible to adjust the size of the crushed parts, making it inconvenient to crush additives of different sizes. To address these issues, the inventors have proposed a mixing device for additives produced based on pre-lithiated lithium battery precursors to solve these problems. Utility Model Content

[0004] To address the issues of additives easily agglomerating and the inconvenience of adjusting the crushing rollers, the purpose of this invention is to provide a mixing device for additives produced based on pre-lithiated lithium battery precursors.

[0005] To solve the above technical problems, this utility model adopts the following technical solution: a mixing device for additives in the production of pre-lithiated lithium battery precursors, comprising a mixing tank, a filter box fixedly installed on one side of the upper surface of the mixing tank, a crushing box fixedly installed on the side of the filter box, the discharge ports at the bottom of the filter box and the crushing box being connected to the inlet of the mixing tank, and the discharge port on the side of the filter box being connected to the inlet on the side of the crushing box, a filter frame being slidably installed inside the filter box, and two No. 1 motors fixedly installed on both sides of the filter box, with the ends of the two No. 1 motors rotatably disposed inside the filter box, and cams fixedly installed on the ends of the two No. 1 motors. The outer surface contacts the lower surface of the sliding strips on both sides of the filter frame. Two springs are fixedly installed on the lower surface of the sliding strips on both sides of the filter frame, and the bottom end of the springs is fixedly connected to the inside of the filter box. Two movable seats are slidably installed on both sides of the crushing box. Crushing rollers are rotatably installed in the two movable seats. Two bidirectional screws are rotatably installed in both sides of the crushing box, and the two ends of the bidirectional screws are threaded to the movable seats. Two side plates are fixedly installed on the side of the crushing box away from the filter box. A transmission rod is rotatably installed in the two side plates. A second bevel gear is fixedly installed at both ends of the transmission rod. A first bevel gear is fixedly installed at the end of the two bidirectional screws near the transmission rod, and the first bevel gear and the second bevel gear mesh with each other.

[0006] Preferably, a No. 3 motor is fixedly installed on the side of the right-side side plate, and one end of the output shaft of the No. 3 motor is fixedly connected to the transmission rod.

[0007] Preferably, bearing plates are fixedly installed on the sides of the two movable seats on the right side, and sleeves are rotatably installed on the sides of the two bearing plates that are close to each other. A fourth bevel gear is fixedly installed on the ends of the two sleeves that are close to each other, and a third bevel gear is fixedly installed on the ends of the two crushing rollers that are close to the sleeves, and the third bevel gear and the fourth bevel gear mesh with each other.

[0008] Preferably, two mounting plates are fixedly installed on the side of the crushing box, and a drive rod is rotatably installed inside the two mounting plates. Two sleeves are slidably fitted on both ends of the drive rod. A second motor is fixedly installed on the side of the right mounting plate, and one end of the output shaft of the second motor is fixedly connected to the drive rod.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. In this utility model, the additive is filtered by setting a filter frame to prevent clumped additives from directly entering the mixing tank and affecting the mixing of additives, thereby improving the mixing efficiency. Secondly, the filter frame is driven to move up and down reciprocally by the cooperation between the cam and the spring, which improves the filtration efficiency and reduces the phenomenon of filter hole blockage.

[0010] 2. In this utility model, a transmission rod is set to drive the crushing roller to move and adjust the distance between the two crushing rollers to facilitate the crushing of additives of different specifications. Secondly, a drive rod is set to drive the crushing roller to rotate in the opposite direction to facilitate the crushing of agglomerated additives. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model.

[0014] Figure 3 This is a schematic cross-sectional view of the filter box of this utility model.

[0015] Figure 4 This is a schematic cross-sectional view of the movable seat of this utility model.

[0016] Figure 5 This is a schematic cross-sectional view of the crushing box of this utility model.

[0017] In the diagram: 1. Mixing tank; 2. Filter box; 21. Filter frame; 22. Spring; 23. Motor No. 1; 24. Cam; 3. Crushing box; 31. Mounting plate; 32. Drive rod; 33. Motor No. 2; 34. Bidirectional screw; 35. Side plate; 36. Transmission rod; 37. First bevel gear; 38. Motor No. 3; 39. Second bevel gear; 4. Moving seat; 41. Crushing roller; 42. Third bevel gear; 43. Bearing plate; 44. Sleeve; 45. Fourth bevel gear. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example: Figure 1-5As shown, this utility model provides a mixing device for additives in the production of pre-lithiated lithium battery precursors, including a mixing tank 1. A filter box 2 is fixedly installed on one side of the upper surface of the mixing tank 1 to filter agglomerated additives and prevent agglomerated additives from directly entering the mixing tank 1 and affecting the mixing. A crushing box 3 is fixedly installed on the side of the filter box 2 to crush the agglomerated additives. The discharge ports at the bottom of the filter box 2 and the crushing box 3 are connected to the inlet of the mixing tank 1, and the discharge port on the side of the filter box 2 is connected to the inlet on the side of the crushing box 3. A filter frame 21 is slidably installed inside the filter box 2. Two movable seats 4 are slidably installed on both sides inside the crushing box 3, and a crushing roller 41 is rotatably installed relative to the two movable seats 4.

[0020] Two motors 23 are fixedly installed on both sides of the filter box 2. The output shafts of the two motors 23 are rotatably set inside the filter box 2 at their close ends. Cams 24 are fixedly installed on the output shafts of the two motors 23 at their close ends. The outer surface of the cams 24 contacts the lower surface of the slide bars on both sides of the filter frame 21 to move the filter frame 21. When in use, the motors 23 are turned on to drive the cams 24 to rotate. When the protrusion of the cams 24 contacts the filter frame 21, the filter frame 21 is moved by the cams 24.

[0021] By adopting the above technical solution, the No. 1 motor 23 can drive the filter frame 21 to move.

[0022] Two springs 22 are fixedly installed on the lower surface of the slide bars on both sides of the filter frame 21, and the bottom end of the spring 22 is fixedly connected to the inside of the filter box 2 to drive the filter frame 21 to move. When in use, when the spring 22 releases the deformation force, the filter frame 21 is driven to move through the spring 22.

[0023] By adopting the above technical solution, the spring 22 can drive the filter frame 21 to move.

[0024] Both sides of the crushing box 3 are rotatably installed with bidirectional screws 34, and both ends of the bidirectional screws 34 are threadedly connected to movable seats 4, which are used to drive the movable seats 4 to move. In use, the rotation of the bidirectional screws 34 drives the movable seats 4 to move, and the movement of the movable seats 4 drives the crushing rollers 41 to move.

[0025] By adopting the above technical solution, the bidirectional screw 34 can drive the crushing roller 41 to move.

[0026] Two side plates 35 are fixedly installed on the side of the crushing box 3 away from the filter box 2. A transmission rod 36 is rotatably installed inside the two side plates 35. A second bevel gear 39 is fixedly installed at both ends of the transmission rod 36. A first bevel gear 37 is fixedly installed at the end of each of the two bidirectional screws 34 near the transmission rod 36. The first bevel gear 37 and the second bevel gear 39 mesh with each other to drive the bidirectional screws 34 to rotate. In use, the rotation of the transmission rod 36 drives the second bevel gear 39 to rotate, the rotation of the second bevel gear 39 drives the first bevel gear 37 to rotate, and the rotation of the first bevel gear 37 drives the bidirectional screws 34 to rotate.

[0027] By adopting the above technical solution, the transmission rod 36 can drive the bidirectional screw 34 to rotate.

[0028] A No. 3 motor 38 is fixedly installed on the side of the right-side side plate 35, and one end of the output shaft of the No. 3 motor 38 is fixedly connected to the transmission rod 36 to drive the transmission rod 36 to rotate. When in use, the No. 3 motor 38 is turned on to drive the transmission rod 36 to rotate.

[0029] By adopting the above technical solution, the No. 3 motor 38 can drive the transmission rod 36 to rotate.

[0030] Bearing plates 43 are fixedly installed on the sides of the two movable seats 4 on the right side. Sleeves 44 are rotatably installed on the sides of the two bearing plates 43 that are close to each other. A fourth bevel gear 45 is fixedly installed at the end of the two sleeves 44 that are close to each other. A third bevel gear 42 is fixedly installed at the end of the two crushing rollers 41 that are close to the sleeves 44. The third bevel gear 42 and the fourth bevel gear 45 mesh with each other to drive the crushing rollers 41 to rotate. In use, the rotation of the sleeves 44 drives the fourth bevel gear 45 to rotate, the rotation of the fourth bevel gear 45 drives the third bevel gear 42 to rotate, and the rotation of the third bevel gear 42 drives the crushing rollers 41 to rotate.

[0031] By adopting the above technical solution, the sleeve 44 can drive the crushing roller 41 to rotate.

[0032] Two mounting plates 31 are fixedly installed on the side of the crushing box 3. A drive rod 32 is rotatably installed inside the two mounting plates 31, and two sleeves 44 are slidably fitted on both ends of the drive rod 32. A second motor 33 is fixedly installed on the side of the right mounting plate 31, and one end of the output shaft of the second motor 33 is fixedly connected to the drive rod 32 to drive the sleeves 44 to rotate. In use, the second motor 33 is turned on to drive the drive rod 32 to rotate, and the rotation of the drive rod 32 drives the sleeves 44 to rotate.

[0033] By adopting the above technical solution, the drive rod 32 can drive the sleeve 44 to rotate.

[0034] Working principle: First, turn on motor 38 to drive transmission rod 36 to rotate. The rotation of transmission rod 36 drives second bevel gear 39 to rotate. The rotation of second bevel gear 39 drives first bevel gear 37 to rotate. The rotation of first bevel gear 37 drives double screw 34 to rotate. The rotation of double screw 34 drives moving seat 4 to move. The movement of moving seat 4 drives crushing roller 41 to move. Adjust the distance between the two crushing rollers 41 to facilitate the crushing of additives of different specifications. Next, turn on motor 33 to drive drive rod 32 to rotate. The rotation of drive rod 32 drives sleeve 44 to rotate. The rotation of sleeve 44 drives fourth bevel gear 45 to rotate. The rotation of fourth bevel gear 45 drives third bevel gear 42 to rotate. The rotation of third bevel gear 42 drives crushing roller 41 to rotate, so that the two crushing rollers 41 rotate in opposite directions. Then, the additive is placed inside the filter box 2, and the first motor 23 is turned on to drive the cam 24 to rotate. At this time, the filter frame 21 moves up and down repeatedly through the cooperation between the cam 24 and the spring 22. The additive inside the filter frame 21 is filtered through the reciprocating movement of the filter frame 21. The filtered additive enters the mixing tank 1 through the discharge port at the bottom of the filter box 2 for mixing. Finally, the clumped additives pass through the slope at the bottom of the filter frame 21, and enter the crushing box 3 through the discharge port on the side of the filter box 2 and the feed port on the side of the crushing box 3. The clumped additives are crushed by the crushing roller 41, and the crushed additives enter the mixing tank 1 through the discharge port at the bottom of the crushing box 3 for mixing.

[0035] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A mixing apparatus for additives produced based on pre-lithiated lithium battery precursors, comprising a mixing tank (1), characterized in that: A filter box (2) is fixedly installed on one side of the upper surface of the mixing tank (1). A crushing box (3) is fixedly installed on the side of the filter box (2). The discharge port at the bottom of the filter box (2) and the crushing box (3) are connected to the feed port of the mixing tank (1). The discharge port on the side of the filter box (2) is connected to the feed port on the side of the crushing box (3). A filter frame (21) is slidably installed inside the filter box (2). Two movable seats (4) are slidably installed on both sides inside the crushing box (3). A crushing roller (41) is rotatably installed in the two movable seats (4).

2. The mixing apparatus for additives in the production of pre-lithiated lithium battery precursors as described in claim 1, characterized in that, The filter box (2) has a No. 1 motor (23) fixedly installed on both sides, and the output shafts of the two No. 1 motors (23) are rotatably set inside the filter box (2) at the ends that are close to each other. The output shafts of the two No. 1 motors (23) are fixedly installed with cams (24) at the ends that are close to each other, and the outer surface of the cams (24) is in contact with the lower surface of the slide bars on both sides of the filter frame (21).

3. The mixing apparatus for additives in the production of pre-lithiated lithium battery precursors as described in claim 1, characterized in that, Two springs (22) are fixedly installed on the lower surface of the slide bars on both sides of the filter frame (21), and the bottom end of the springs (22) is fixedly connected to the inside of the filter box (2).

4. The mixing apparatus for additives in the production of pre-lithiated lithium battery precursors as described in claim 1, characterized in that, Both sides of the crushing box (3) are rotatably installed with bidirectional screws (34), and both ends of the bidirectional screws (34) are threadedly connected to movable seats (4).

5. The mixing apparatus for additives in the production of pre-lithiated lithium battery precursors as described in claim 4, characterized in that, The crushing box (3) has two side plates (35) fixedly installed on the side away from the filter box (2). A transmission rod (36) is rotatably installed inside the two side plates (35). A second bevel gear (39) is fixedly installed at both ends of the transmission rod (36). A first bevel gear (37) is fixedly installed at the end of the two bidirectional screws (34) near the transmission rod (36), and the first bevel gear (37) meshes with the second bevel gear (39).

6. The mixing apparatus for additives in the production of pre-lithiated lithium battery precursors as described in claim 5, characterized in that, A No. 3 motor (38) is fixedly installed on the side of the side plate (35) located on the right side, and one end of the output shaft of the No. 3 motor (38) is fixedly connected to the transmission rod (36).

7. The mixing apparatus for additives in the production of pre-lithiated lithium battery precursors as described in claim 1, characterized in that, Bearing plates (43) are fixedly installed on the sides of the two movable seats (4) located on the right side. Sleeves (44) are rotatably installed on the sides of the two bearing plates (43) that are close to each other. A fourth bevel gear (45) is fixedly installed at the end of the two sleeves (44) that are close to each other. A third bevel gear (42) is fixedly installed at the end of the two crushing rollers (41) that are close to the sleeves (44), and the third bevel gear (42) and the fourth bevel gear (45) mesh with each other.

8. The mixing apparatus for additives in the production of pre-lithiated lithium battery precursors as described in claim 7, characterized in that, Two mounting plates (31) are fixedly installed on the side of the crushing box (3). A drive rod (32) is rotatably installed inside the two mounting plates (31), and two sleeves (44) are slidably sleeved on both ends of the drive rod (32). A second motor (33) is fixedly installed on the side of the right mounting plate (31), and one end of the output shaft of the second motor (33) is fixedly connected to the drive rod (32).

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