A continuous stirring and homogenization device for a lithium hexafluorophosphate solution

Abstract

The utility model relates to the field of chemical equipment discloses a continuous stirring and homogenization device of lithium hexafluorophosphate solution, including base, the inner wall fixedly connected with stirring drum of base, the inner wall of base is provided with motor, the output fixedly connected with the rotating rod of motor, the outer wall sliding connection has the long pole of rotating rod, the inner wall sliding connection has the stirring rod of long pole, the inner wall sliding connection has the connecting rod of stirring rod, the top of stirring drum is equipped with extrusion groove, the top of stirring drum is provided with movable mechanism, the bottom of stirring drum is provided with dismounting subassembly, movable mechanism includes ring. In the utility model, when stirring, through extrusion groove and wave groove cooperation, make stirring rod can realize up and down movement and draw together, separate action in rotation, break the laminar flow state of solution, improve lithium hexafluorophosphate solution mixing uniformity greatly, improve stirring effect and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment, and in particular to a continuous stirring and homogenization device for lithium hexafluorophosphate solution. Background Technology

[0002] As a core component of lithium battery electrolyte, the uniformity of lithium hexafluorophosphate solution directly affects the electrochemical performance of the electrolyte and the cycle life of the battery. Efficient stirring and homogenization are key to ensuring stable solution quality and improving production efficiency. Therefore, dedicated stirring and homogenization equipment plays an irreplaceable role in the production of lithium battery materials.

[0003] In existing technologies, lithium hexafluorophosphate solution stirring mostly adopts a single rotary stirring structure. The stirring rod is driven by a motor to make circular motion in the tank. The mechanical force of the stirring rod drives the solution to flow and achieve material mixing. Some devices are equipped with a fixed filter screen to filter impurities in the solution at the discharge stage, thus completing the stirring and preliminary purification process.

[0004] The existing technology has the following drawbacks: The core problem of the existing technology is that the movement trajectory of the stirring rod is fixed, which can only achieve the circumferential flow of the solution, which easily forms a laminar flow state, resulting in uneven mixing inside the solution. In some areas, the material cannot fully contact and react, which not only affects the homogenization effect, but also prolongs the stirring time and reduces the overall production efficiency. To solve the above problems, a continuous stirring and homogenization device for lithium hexafluorophosphate solution is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a continuous stirring and homogenization device for lithium hexafluorophosphate solution, aiming to improve the problem of the single stirring direction of the stirring rod in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a continuous stirring and homogenization device for lithium hexafluorophosphate solution, comprising a base, a stirring tank fixedly connected to the inner wall of the base, a motor disposed on the inner wall of the base, a rotating rod fixedly connected to the output end of the motor, a long rod slidably connected to the outer wall of the rotating rod, a stirring rod slidably connected to the inner wall of the long rod, a connecting rod slidably connected to the inner wall of the stirring rod, an extrusion groove provided at the top of the stirring tank, a movable mechanism provided at the top of the stirring tank, and a disassembly assembly provided at the bottom of the stirring tank; The moving mechanism includes a ring, which is fixedly connected to the top of the mixing tank, and the inner wall of the ring is provided with a wave groove.

[0007] As a further description of the above technical solution: The disassembly assembly includes a discharge port, which is fixedly connected to the bottom of the mixing tank. A filter screen is inserted into the outer wall of the discharge port, and a bolt is threaded onto the top of the filter screen.

[0008] As a further description of the above technical solution: The rotating rod is rotatably connected to the inner wall of the mixing tank.

[0009] As a further description of the above technical solution: A rectangular block is fixedly connected to the outer wall of the rotating rod, and the long rod is slidably connected to the inner wall of the wave groove.

[0010] As a further description of the above technical solution: The connecting rod is slidably connected to the inner wall of the extrusion groove.

[0011] As a further description of the above technical solution: The bolt is threaded onto the upper surface of the discharge port.

[0012] This utility model has the following beneficial effects: 1. In this utility model, during solution stirring, the extrusion groove and the corrugated groove work together to enable the stirring rod to move up and down and move closer and separate simultaneously when rotating, breaking the laminar flow state of the solution, greatly improving the mixing uniformity of lithium hexafluorophosphate solution, and improving the stirring effect and efficiency.

[0013] 2. In this utility model, the filter screen adopts a bolt limiting and protrusion positioning structure, which does not require complicated tools for disassembly and assembly, is simple and convenient to operate, can be quickly replaced, effectively reduces equipment maintenance costs and reduces downtime. Attached Figure Description

[0014] Figure 1 This is a schematic diagram showing the base and stirring tank of a continuous stirring and homogenization device for lithium hexafluorophosphate solution proposed in this utility model. Figure 2 This is a cross-sectional schematic diagram of the base, stirring tank, and annulus of a continuous stirring and homogenization device for lithium hexafluorophosphate solution proposed in this utility model. Figure 3 This is an exploded view of the ring and stirring tank of a continuous stirring and homogenization device for lithium hexafluorophosphate solution proposed in this utility model. Figure 4 This is a schematic diagram of a long rod representing a continuous stirring and homogenization device for lithium hexafluorophosphate solution proposed in this utility model. Figure 5 This is a schematic diagram showing the outlet and filter screen of a continuous stirring and homogenization device for lithium hexafluorophosphate solution proposed in this utility model.

[0015] Legend: 1. Base; 2. Mixing tank; 3. Extrusion groove; 4. Motor; 5. Rotating rod; 6. Discharge port; 7. Filter screen; 8. Bolt; 9. Long rod; 10. Mixing rod; 11. Ring; 12. Corrugated groove; 13. Connecting rod. Detailed Implementation

[0016] 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.

[0017] Reference Figures 1-3 This utility model provides an embodiment of a continuous stirring and homogenization device for lithium hexafluorophosphate solution, comprising a base 1, which serves as the supporting foundation for the entire device and is made of high-strength metal to ensure the stability of the device during operation. A stirring tank 2 is fixedly connected to the inner wall of the base 1, and a motor 4 is installed on the inner wall of the base 1, providing power to the entire stirring mechanism. A rotating rod 5 is fixedly connected to the output end of the motor 4, and a long rod 9 is slidably connected to the outer wall of the rotating rod 5. The long rod 9 has a slot corresponding to the rotating rod 5, allowing the long rod 9 to move up and down. A stirring rod 10 is slidably connected to the inner wall of the long rod 9, and a slot corresponding to the stirring rod 10 is also provided on the long rod 9. This allows the stirring rod 10 to move left and right. A connecting rod 13 is slidably connected to the inner wall of the stirring rod 10. The stirring rod 10 has a groove corresponding to the connecting rod 13, allowing the stirring rod 10 to move up and down along the outer wall of the connecting rod 13. The top of the mixing tank 2 has an extrusion groove 3. Both the extrusion groove 3 and the wave groove 12 are wavy in shape. The top of the mixing tank 2 is equipped with a movable mechanism, and the bottom of the mixing tank 2 is equipped with a disassembly assembly. The movable mechanism includes a ring 11, which is fixedly connected to the top of the mixing tank 2. The ring 11 is fixed to the top of the mixing tank 2 by welding to ensure the stability of the connection. The inner wall of the ring 11 has a wave groove 12.

[0018] Reference Figure 1 and Figure 5The disassembly assembly includes a discharge port 6, which is fixedly connected to the bottom of the mixing tank 2. The discharge port 6 and the mixing tank 2 are integrally formed to ensure smooth and leak-free solution discharge. A filter screen 7 is inserted into the outer wall of the discharge port 6. The filter screen 7 is used to filter out any impurities that may be present in the solution to ensure the purity of the output solution. The inner wall of the filter screen 7 is provided with protrusions to limit the lateral movement of the filter screen 7. A bolt 8 is threadedly connected to the top of the filter screen 7. The filter screen 7 is provided with threads that match the bolt 8. The bolt 8 is threadedly connected to the upper surface of the discharge port 6. The discharge port 6 is provided with threads that match the bolt 8.

[0019] Reference Figures 2-4 The rotating rod 5 is rotatably connected to the inner wall of the mixing tank 2. The mixing tank 2 has a corresponding slot for the rotating rod 5 to facilitate its rotation. A rectangular block is fixedly connected to the outer wall of the rotating rod 5, so that the long rod 9 can rotate with the rotating rod 5 while moving vertically. The long rod 9 is slidably connected to the inner wall of the wave groove 12. The wave groove 12 will squeeze the long rod 9 to move vertically. There are two sets of long rods 9. The lower set of long rods 9 serves as a guide for the mixing rod 10. The connecting rod 13 is slidably connected to the inner wall of the extrusion groove 3. The extrusion groove 3 will squeeze the connecting rod 13 to move laterally.

[0020] Working principle: When stirring the lithium hexafluorophosphate solution, after pouring in the solution, the operator can turn on motor 4. Motor 4 will rotate the rotating rod 5, which in turn will rotate the long rod 9, connecting rod 13, and stirring rod 10 to mix the solution. When the long rod 9 rotates, it will move along the trajectory of the corrugated groove 12. When the long rod 9 moves to the protruding part of the corrugated groove 12, it will move the stirring rod 10 upwards. When the long rod 9 moves to the concave part of the corrugated groove 12, it will move the stirring rod 10 upwards. As the stirring rod 10 moves downward, the connecting rod 13 slides along the shape of the extrusion groove 3. When the connecting rod 13 moves to the protruding part of the extrusion groove 3, the connecting rod 13 will cause the two sets of stirring rods 10 to separate from each other. When the connecting rod 13 moves to the concave part of the extrusion groove 3, the connecting rod 13 will cause the two sets of stirring rods 10 to move closer together. When the stirring rod 10 rotates, the cooperation between the extrusion groove 3 and the wave groove 12 causes the stirring rod 10 to move up and down while moving closer together or separating, further enhancing the stirring effect on the solution.

[0021] When the filter screen 7 needs to be replaced, manually unscrew the bolt 8. When the bolt 8 separates from the groove on the outlet 6, manually remove the filter screen 7. When the filter screen 7 needs to be installed, manually align the protrusion on the filter screen 7 and insert it into the groove on the outlet 6. Then manually tighten the bolt 8 to complete the positioning of the filter screen 7.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A continuous stirring and homogenization device for lithium hexafluorophosphate solution, comprising a base (1), characterized in that: The inner wall of the base (1) is fixedly connected to a stirring tank (2), the inner wall of the base (1) is provided with a motor (4), the output end of the motor (4) is fixedly connected to a rotating rod (5), the outer wall of the rotating rod (5) is slidably connected to a long rod (9), the inner wall of the long rod (9) is slidably connected to a stirring rod (10), the inner wall of the stirring rod (10) is slidably connected to a connecting rod (13), the top of the stirring tank (2) is provided with a squeezing groove (3), the top of the stirring tank (2) is provided with a movable mechanism, and the bottom of the stirring tank (2) is provided with a disassembly assembly. The active mechanism includes a ring (11), which is fixedly connected to the top of the mixing tank (2), and the inner wall of the ring (11) is provided with a wave groove (12).

2. The continuous stirring and homogenization apparatus for lithium hexafluorophosphate solution according to claim 1, characterized in that: The disassembly assembly includes a discharge port (6), which is fixedly connected to the bottom of the mixing tank (2). A filter screen (7) is inserted into the outer wall of the discharge port (6), and a bolt (8) is threaded onto the top of the filter screen (7).

3. The continuous stirring and homogenization apparatus for lithium hexafluorophosphate solution according to claim 1, characterized in that: The rotating rod (5) is rotatably connected to the inner wall of the mixing tank (2).

4. The continuous stirring and homogenization apparatus for lithium hexafluorophosphate solution according to claim 1, characterized in that: A rectangular block is fixedly connected to the outer wall of the rotating rod (5), and the long rod (9) is slidably connected to the inner wall of the wave groove (12).

5. The continuous stirring and homogenization apparatus for lithium hexafluorophosphate solution according to claim 1, characterized in that: The connecting rod (13) is slidably connected to the inner wall of the extrusion groove (3).

6. The continuous stirring and homogenization apparatus for lithium hexafluorophosphate solution according to claim 2, characterized in that: The bolt (8) is threaded onto the upper surface of the discharge port (6).

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