A battery slurry reflux device

Abstract

This utility model belongs to the field of battery slurry technology, and in particular to a battery slurry recirculation device. It includes a mixing chamber and a support frame fixed to the lower end face of the mixing chamber. It also includes: a guide slope disposed on the lower end face of the mixing chamber; a feed port connected to one side of the mixing chamber; a connecting rod rotatably connected to the center of the mixing chamber; a drive mechanism disposed at the upper end of the mixing chamber; and a discharge port connected to the lower end face of the guide slope. This utility model uses a servo motor to drive a drive gear, which in turn drives a linkage gear. Since the linkage gear can mesh with multiple sets of drive gears, all sets of drive gears and the linkage gear can rotate. Through the staggered arrangement of the mixing plate and the linkage plate, the slurry can be thoroughly and comprehensively mixed, improving the mixing quality and achieving uniform mixing of the battery slurry.

Description

Technical Field

[0001] This utility model relates to the field of battery slurry technology, specifically to a battery slurry recirculation device. Background Technology

[0002] In the manufacturing of lithium-ion battery electrodes, the positive electrode slurry consists of binders, conductive agents, and positive electrode materials, while the negative electrode slurry consists of binders and graphite carbon powder. The dispersion and uniformity of the particulate active materials in both the positive and negative electrode slurries directly affect the movement of lithium ions between the two electrodes. Therefore, the mixing and dispersion of the slurries for each electrode material is crucial in lithium-ion battery production. The quality of the slurry dispersion directly impacts the quality of subsequent lithium-ion battery production and the performance of the final product.

[0003] In the battery production process, the uniformity of battery slurry mixing directly affects the battery performance. However, the existing stirring and mixing methods are too monotonous, and can only stir lithium-ion battery slurry in the same direction. This method not only has low working speed and efficiency, but also has problems such as poor slurry backflow and insufficient mixing, which greatly affects the mixing effect of the device.

[0004] Therefore, we propose a battery slurry recirculation device to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a battery slurry reflux device, which solves the problem that the existing devices mentioned in the background technology have a monotonous stirring and mixing method, which can only stir lithium-ion battery slurry in the same direction. This method not only has low working speed and efficiency, but also has problems such as poor slurry reflux and insufficient mixing.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0009] A battery slurry recirculation device includes a mixing chamber and a support frame fixed to the lower end face of the mixing chamber, and further includes:

[0010] A guide slope is set on the lower end face of the mixing chamber, and the cross-section of the guide slope is trapezoidal. A feed port is connected to one side of the mixing chamber.

[0011] The connecting rod is rotatably connected to the center of the mixing chamber. A drive mechanism is provided at the upper end of the mixing chamber to drive the connecting rod to rotate at multiple angles.

[0012] The discharge port is connected to the lower end face of the guide slope, and the cross-section of the discharge port is an "L" shaped structure;

[0013] The sealing mechanism is located inside the discharge port and is used to open and close the discharge port.

[0014] Furthermore, the drive mechanism includes a linkage gear, a drive gear, and a servo motor. The linkage gear is fixed to the upper end face of the connecting rod, the drive gear is meshed with the outside of the linkage gear, and the drive gear is arranged in a triangle. The servo motor is fixed to the upper end face of a set of drive gears.

[0015] Furthermore, a propeller is fixed to the lower end of the outer surface of the connecting rod, and the propeller is located inside the guide slope. The diameter of the propeller decreases from top to bottom, and a mixing plate is uniformly fixed to the upper end of the outer surface of the connecting rod.

[0016] Furthermore, a linkage rod is fixed to the lower end face of the drive gear, and linkage plates are uniformly fixed to the outer surface of the linkage rod, with the mixing plate and linkage plate being arranged alternately.

[0017] Furthermore, the sealing mechanism includes an electric push rod, a sealing component, and a guide port. The electric push rod is fixed to the lower end face of the discharge port, the sealing component is fixed to the output end of the electric push rod, and the sealing component is slidably embedded inside the discharge port. The guide port is opened on the inner side of the sealing component, and the cross-section of the guide port is an "L" shaped structure.

[0018] Furthermore, a sealing ring is fitted onto the outer surface of the sealing component, and the sealing ring is tightly fitted to the inner wall of the discharge port.

[0019] (III) Beneficial Effects

[0020] Compared with the prior art, the present invention provides a battery slurry reflux device, which has the following beneficial effects:

[0021] This invention utilizes a servo motor to drive a drive gear, which in turn drives a linkage gear. Since the linkage gear can mesh with multiple sets of drive gears, all sets of drive gears and linkage gears rotate simultaneously. The staggered arrangement of the mixing plate and linkage plate ensures comprehensive and thorough mixing of the slurry, improving its mixing quality and achieving uniform mixing of the battery slurry. Furthermore, the structure of the guide slope and propeller effectively guides the slurry flow, solving the problem of poor slurry backflow and improving slurry discharge efficiency. Finally, an electric push rod controls the movement of the sealing component, opening and closing the discharge port. Operation is convenient, and the sealing ring enhances the sealing performance, preventing slurry leakage. Attached Figure Description

[0022] Figure 1 This is a top view schematic diagram of the battery slurry recirculation device of this utility model;

[0023] Figure 2 This is a schematic diagram of the interior of the hybrid storage compartment of this utility model;

[0024] Figure 3 This is a schematic cross-sectional view of the battery slurry recirculation device of this utility model;

[0025] Figure 4 This is a top view of the drive mechanism of this utility model;

[0026] Figure 5 This is a top view of the connecting rod of this utility model;

[0027] Figure 6 This is a top view of the sealing mechanism of this utility model.

[0028] In the diagram: 1. Mixing chamber; 2. Support frame; 3. Feed port; 4. Guide slope; 5. Connecting rod; 6. Linkage gear; 7. Drive gear; 8. Servo motor; 9. Propeller; 10. Mixing plate; 11. Linkage rod; 12. Linkage plate; 13. Discharge port; 14. Electric push rod; 15. Sealing component; 16. Sealing ring; 17. Guide port. Detailed Implementation

[0029] 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.

[0030] Example

[0031] like Figure 1-6 As shown, an embodiment of this utility model discloses a battery slurry recirculation device, including a mixing chamber 1 and a support frame 2 fixed to the lower end face of the mixing chamber 1. The mixing chamber 1 serves as the main place for mixing and processing battery slurry. The support frame 2 is made of high-strength metal material and has sufficient load-bearing capacity to stably support the mixing chamber 1 and the slurry inside, ensuring that the device will not shake or tilt during operation, thus providing a basic guarantee for the stable operation of the entire device. It also includes:

[0032] A guide slope 4 is located on the lower end face of the mixing chamber 1, and its cross-section is trapezoidal. One side of the mixing chamber 1 is connected to a feed port 3. One end of the feed port 3 is connected to an external slurry conveying device, and the other end is connected to the interior of the mixing chamber 1. Its pipe diameter is designed according to the actual slurry conveying volume in production, and it is usually made of corrosion-resistant materials to avoid corrosion by the battery slurry, ensuring that the slurry can be smoothly fed into the mixing chamber 1. The guide slope 4 has a trapezoidal cross-section, with the trapezoid being wider at the top and narrower at the bottom. Its inclination angle is optimized, generally between 30° and 60°, ensuring that the slurry flows smoothly under its own gravity without affecting the mixing effect due to excessively large inclination causing excessively fast slurry flow. This structural design guides the battery slurry to converge at the bottom along the inclined surface, preparing it for the subsequent discharge process and effectively solving the problems of slurry accumulation at the bottom of the chamber and poor backflow. The drive gear 7 is triangularly arranged, with teeth on its three corners that match the linkage gear 6. The servo motor 8 is fixed on the upper surface of a set of drive gears 7, and the output shaft of the servo motor 8 is connected to the central shaft of the drive gear 7, providing power for the rotation of the drive gear 7.

[0033] The connecting rod 5 is rotatably connected to the center of the mixing chamber 1. A drive mechanism is provided at the upper end of the mixing chamber 1 to drive the connecting rod 5 to rotate at multiple angles. The connecting rod 5 is rotatably connected to the center of the mixing chamber 1 and can rotate around its own axis. The drive mechanism includes a linkage gear 6, a drive gear 7, and a servo motor 8. The linkage gear 6 is fixed to the upper end face of the connecting rod 5, and the drive gear 7 is meshed with the outside of the linkage gear 6 and is triangularly arranged. The servo motor 8 is fixed to the upper end face of a set of drive gears 7. When the servo motor 8 is started, it drives the drive gear 7 to rotate. Since the drive gear 7 is triangular, its three corners will mesh with the linkage gear 6 in sequence, thereby causing the linkage gear 6 to rotate in different directions such as forward and reverse, which in turn drives the connecting rod 5 to achieve multi-angle rotation. This multi-angle rotation method enables the stirring component on the connecting rod 5 to stir the slurry at different positions in the mixing chamber 1, improving the uniformity of mixing.

[0034] A propeller 9 is fixed to the lower end of the outer surface of the connecting rod 5, and the propeller 9 is located inside the guide slope 4. The diameter of the propeller 9 decreases gradually from top to bottom. A mixing plate 10 is uniformly fixed to the upper end of the outer surface of the connecting rod 5. The propeller 9 is fixed to the lower end of the outer surface of the connecting rod 5, and the propeller 9 is located inside the guide slope 4. Its blade angle is designed to generate downward thrust when rotating. The diameter of the propeller 9 decreases gradually from top to bottom. This design is adapted to the structure of the gradually decreasing space inside the guide slope 4, avoiding collisions between the propeller 9 and the guide slope 4. At the same time, it can more effectively push the slurry down the guide slope 4 and accelerate the slurry convergence speed. In addition, the mixing plate 10 has a sheet-like structure. When the connecting rod 5 rotates, the mixing plate 10 can stir the slurry in the upper part of the mixing chamber 1, so that the slurry can fully contact and mix.

[0035] A linkage rod 11 is fixed to the lower end face of the drive gear 7. A linkage plate 12 is uniformly fixed to the outer surface of the linkage rod 11, and the mixing plate 10 and the linkage plate 12 are staggered. Since multiple sets of drive gears 7 can rotate with the linkage gear 6, they can rotate with the linkage rod 11 and the linkage plate 12. Then, since the linkage plate 12 and the mixing plate 10 are staggered, that is, the mixing plate 10 and the linkage plate 12 are spatially offset from each other, there will be no interference. When the drive gear 7 drives the linkage rod 11 to rotate, the linkage plate 12 rotates with the linkage rod 11 and cooperates with the mixing plate 10 to stir the slurry from different directions, breaking the flow inertia of the slurry and further improving the uniformity of mixing.

[0036] The discharge port 13 is connected to the lower end face of the guide slope 4, and the cross-section of the discharge port 13 is an "L" shaped structure. This structural design of the discharge port 13 allows the slurry to be turned during the discharge process, which facilitates the slurry to be transported to subsequent processing equipment or return pipelines to meet different production layout requirements.

[0037] A sealing mechanism is installed inside the discharge port 13 to open and close the discharge port 13. The sealing mechanism includes an electric push rod 14, a sealing element 15, and a guide port 17. The electric push rod 14 is fixed to the lower end face of the discharge port 13, the sealing element 15 is fixed to the output end of the electric push rod 14, and the sealing element 15 is slidably embedded inside the discharge port 13. The guide port 17 is opened inside the sealing element 15, and the cross-section of the guide port 17 is an "L" shape. The electric push rod 14 can push the sealing element 15 to extend and retract. The shape of the sealing element 15 matches the internal channel of the discharge port 13, and the sealing element 15 is slidably embedded inside the discharge port 13. It can slide along the axial direction of the discharge port 13 under the drive of the electric push rod 14. The guide port 17 is opened inside the sealing element 15, and the cross-section of the guide port 17 is an "L" shape, the size of which is adapted to the internal channel of the discharge port 13.

[0038] When discharge is required, the output shaft of the electric push rod 14 extends, pushing the sealing member 15 to slide inside the discharge port 13, so that the guide port 17 is connected to the internal channel of the discharge port 13, and the slurry can be discharged through the guide port 17 and the discharge port 13 in sequence; when discharge is not required, the output shaft of the electric push rod 14 retracts, pulling the sealing member 15 to reset, and the sealing member 15 blocks the internal channel of the discharge port 13, preventing the slurry from being discharged.

[0039] A sealing ring 16 is fitted onto the outer surface of the sealing element 15, and the sealing ring 16 fits tightly against the inner wall of the discharge port 13. The sealing ring 16 is made of an elastic material such as rubber, and fits tightly against the inner wall of the discharge port 13. In the sealed state, the sealing ring 16 can fill the gap between the sealing element 15 and the inner wall of the discharge port 13, effectively enhancing the sealing performance and preventing slurry leakage in the sealed state.

[0040] During use, the battery slurry enters the mixing chamber 1 through the feed port 3. The servo motor 8 is started, and the servo motor 8 drives the drive gear 7 to rotate. The drive gear 7, through meshing with the linkage gear 6, drives the connecting rod 5 to rotate at multiple angles. At the same time, the drive gear 7 drives the linkage rod 11 to rotate synchronously.

[0041] During the rotation of connecting rod 5 and linkage rod 11, mixing plate 10 and linkage plate 12 fully stir and mix the slurry in mixing chamber 1; the propeller 9 at the lower end of connecting rod 5 rotates, pushing the slurry upward along guide slope 4 for adjustment, and then, under the guidance of guide slope 4, the slurry converges at discharge port 13.

[0042] When discharge is required, the electric push rod 14 pushes the sealing member 15 to move, so that the guide port 17 is connected to the discharge port 13, and the slurry is discharged through the guide port 17 and the discharge port 13; when discharge is not required, the electric push rod 14 pulls the sealing member 15 to reset, and the sealing ring 16 fits tightly against the inner wall of the discharge port 13, thereby sealing the discharge port 13 and preventing slurry leakage.

[0043] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A battery slurry reflux device comprising a mixing bin body (1) and a support frame (2) fixed on the lower end surface of the mixing bin body (1), characterized in that, Also includes: A guide slope (4) is set on the lower end face of the mixing chamber (1), and the cross-section of the guide slope (4) is a trapezoidal structure. A feed port (3) is connected to one side of the mixing chamber (1). The connecting rod (5) is rotatably connected to the center of the mixing chamber (1). The upper part of the mixing chamber (1) is equipped with a driving mechanism to drive the connecting rod (5) to rotate at multiple angles. The discharge port (13) is connected to the lower end face of the guide slope (4), and the cross-section of the discharge port (13) is an "L" shaped structure; The blocking mechanism is located inside the discharge port (13) and is used to open and close the discharge port (13).

2. The battery slurry refluxing device according to claim 1, characterized by: The drive mechanism includes a linkage gear (6), a drive gear (7), and a servo motor (8). The linkage gear (6) is fixed on the upper end face of the connecting rod (5). The drive gear (7) is meshed with the outside of the linkage gear (6) and is arranged in a triangular shape. The servo motor (8) is fixed on the upper end face of a set of drive gears (7).

3. The battery slurry refluxing apparatus according to claim 2, wherein: A propeller (9) is fixed to the lower end of the outer surface of the connecting rod (5), and the propeller (9) is located inside the guide slope (4). The diameter of the propeller (9) decreases from top to bottom. A mixing plate (10) is uniformly fixed to the upper end of the outer surface of the connecting rod (5).

4. The battery slurry refluxing apparatus according to claim 3, wherein: The lower end face of the drive gear (7) is fixed with a linkage rod (11), and a linkage plate (12) is uniformly fixed on the outer surface of the linkage rod (11), and the mixing plate (10) and the linkage plate (12) are arranged alternately.

5. The battery slurry refluxing device according to claim 1, wherein: The sealing mechanism includes an electric push rod (14), a sealing component (15), and a guide port (17). The electric push rod (14) is fixed to the lower end face of the discharge port (13). The sealing component (15) is fixed to the output end of the electric push rod (14) and the sealing component (15) is slidably embedded inside the discharge port (13). The guide port (17) is opened on the inner side of the sealing component (15) and the cross-section of the guide port (17) is an "L" shaped structure.

6. The battery slurry refluxing device according to claim 5, characterized by: The outer surface of the sealing component (15) is fitted with a sealing ring (16), and the sealing ring (16) is tightly fitted with the inner wall of the discharge port (13).

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