Battery pulping device

Abstract

This application provides a battery slurry preparation device, comprising: a housing with an inlet and an outlet, a first through hole arranged axially within the housing, a channel for cooling medium flow between the inner and outer walls of the housing, and an inlet and an outlet communicating with the channel; a rotating shaft passing through the first through hole, with a second through hole arranged axially within the rotating shaft, the second through hole being able to communicate with an external water source; and a dispersion disc sleeved on the rotating shaft, the dispersion disc including at least one bushing. This application can improve dispersion efficiency and enhance the cooling effect during dispersion.

Description

Technical Field

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

[0002] In battery slurry preparation, a slurry-making device is required to add a fixed amount of powder and liquid into a mixing container. Under closed conditions, the powder and liquid are impregnated, mixed, and homogenized by a high-speed dispersion disc. There are three types of existing slurry-making equipment: dual planetary mixers, ultra-high-speed dispersion circulating slurry machines, and twin-screw dispersion circulating slurry machines. Dual planetary mixers have a kneading function and good compatibility with various material formulations, but they are very large, have low production efficiency, and high energy consumption. Ultra-high-speed dispersion circulating slurry machines have high production efficiency, small size, and low energy consumption, but they do not have a kneading function, have poor compatibility with various material formulations, and are not suitable for slurries that are difficult to disperse or have high solids content. Twin-screw dispersion circulating slurry machines have a kneading function, good compatibility with various material formulations, high production efficiency, small size, and low energy consumption, but they require two screws to fix the dispersion disc, and the metal friction between the two screws generates metal foreign objects that affect the battery's self-discharge performance. Utility Model Content

[0003] To overcome the shortcomings of the prior art, this utility model provides a battery slurry preparation device with simple structure and small size, which can improve dispersion efficiency, reduce energy consumption, and enhance cooling effect.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] This utility model discloses a battery slurry preparation device, comprising:

[0006] The housing has an inlet and an outlet, a first through hole arranged along its axial direction inside the housing, a channel for the flow of cooling medium between the inner wall and the outer wall of the housing, and an inlet and an outlet communicating with the channel on the housing.

[0007] A rotating shaft is inserted into the first through hole, and the rotating shaft is provided with a second through hole arranged along its axial direction, the second through hole being able to communicate with an external water source;

[0008] A dispersing disc, which is sleeved on the rotating shaft, includes at least one bushing.

[0009] The battery slurry preparation device in this application adopts a dual cooling structure combining channels and a rotating shaft. During the slurry preparation process, cooling water is introduced through the second through hole in the rotating shaft to cool the slurry near the rotating shaft, effectively preventing overheating caused by slow heat dissipation of the slurry near the rotating shaft. At the same time, cooling medium is introduced through the channels to cool the slurry from the periphery of the shell. By cooling the slurry from both the inside and outside, the cooling efficiency of the slurry can be improved, thereby avoiding damage to the binder in the slurry.

[0010] Furthermore, the inlet of the channel is located at the end of the shell opposite to the feed inlet, and the outlet of the channel is located at the end of the shell near the feed inlet. During the pulping process, the heat generated by friction between the pulp particles is mainly concentrated in the middle and rear part of the shell. The positions of the inlet and outlet ensure that the cooling direction of the cooling medium is opposite to the flow direction of the pulp. The cooling medium enters from the end opposite to the feed inlet, preferentially cooling the area with higher heat generation. When it flows to the end near the feed inlet, although the temperature of the cooling medium is relatively higher, it can still effectively cool the pulp in that area. Through reasonable planning of the cooling positions, the heat exchange efficiency and cooling efficiency can be significantly improved.

[0011] Furthermore, external water enters from the end of the second through hole away from the feed inlet and flows out from the end of the second through hole closer to the feed inlet.

[0012] Furthermore, the channel is a spiral channel, which is a continuous channel extending from one end of the shell to the other, or two or more independent channels, each channel having an inlet and an outlet. The spiral channel design increases the contact area between the cooling medium and the slurry, allowing the cooling medium to flow around the inner wall of the shell, prolonging the residence time of the cooling medium in the device, ensuring that the heat generated by the friction between the slurry particles inside the shell is effectively removed, and improving the cooling effect.

[0013] Furthermore, the rotating shaft is provided with a pivot key, and the dispersing disc has a corresponding groove inside. The dispersing disc is fixed to the rotating shaft by the pivot key and the groove. The engagement of the pivot key and the groove facilitates the installation and disassembly of the dispersing disc and makes the connection between the dispersing disc and the rotating shaft more secure, preventing the dispersing disc from shifting or loosening due to centrifugal force, thereby ensuring the dispersion effect and stability of the dispersing disc on the slurry.

[0014] Furthermore, the dispersion disc includes a feed screw bushing, a crushing disc bushing, a first kneading screw bushing, a crushing disc bushing, and a second kneading screw bushing arranged sequentially along the material dispersion direction. The dispersion disc in this application adopts a modular segmentation, allowing for the arbitrary combination of various dispersion functional modules according to the solid content of the slurry, thereby improving the economic adaptability of slurry formulations to energy consumption. Simultaneously, when one dispersion functional module experiences wear or requires improvement, that module can be replaced individually without replacing the entire dispersion disc, thus reducing equipment maintenance and operating costs.

[0015] Furthermore, the feed inlet includes a first feed inlet and a second feed inlet, with a feeding time difference between the first feed inlet and the second feed inlet. The first feed inlet and the second feed inlet are used to convey liquid materials and powder materials into the housing, respectively. By setting the feeding time difference, it is possible to prevent the powder materials from clogging at the second feed inlet.

[0016] Furthermore, the inner wall of the rotating shaft is provided with threads, which are located near the ends of the rotating shaft. The threads are used to connect a cooling water rotary joint, thereby enabling the second through hole to communicate with an external water source.

[0017] Furthermore, at least one end of the rotating shaft extends to the outside of the housing, and a drive gear is connected to the rotating shaft extending to the outside of the housing. The drive gear is used to connect to an external drive device, which drives the rotating shaft to rotate, thereby driving the dispersing disc to disperse the material.

[0018] Furthermore, the device also includes end caps located at both ends of the housing, the end caps being detachably connected to the housing, and each end cap having a sealing ring on the side facing the housing. The detachable end caps improve the convenience and efficiency of device maintenance.

[0019] Furthermore, it also includes a support base, which is connected to the end cap. The support base provides stable support for the entire device, enhancing its stability during operation.

[0020] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0021] 1. This application utilizes a dual cooling structure combining channels and a rotating shaft. During the pulping process, cooling water is introduced through the second through-hole in the rotating shaft to cool the pulp near the rotating shaft, effectively preventing overheating caused by slow heat dissipation of the pulp near the rotating shaft. Simultaneously, cooling medium is introduced through the channels to cool the pulp from all sides of the shell. By cooling the pulp from both the inside and outside, the cooling efficiency of the pulp can be improved, thereby preventing the binder in the pulp from being damaged.

[0022] 2. The dispersion disc in this application adopts a modular segmentation, which can arbitrarily combine various different dispersion functional modules according to the solid content of the slurry, thereby improving the economic adaptability of slurry formulations and energy consumption. At the same time, when one of the dispersion functional modules wears out or needs improvement, that module can be replaced individually without replacing the entire dispersion disc, thus reducing the maintenance and operating costs of the equipment.

[0023] To make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0024] 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.

[0025] Figure 1 This is a cross-sectional view of a battery slurry preparation apparatus provided in this application;

[0026] Figure 2 This is a left view of a battery slurry preparation device provided in this application;

[0027] Figure 3 This is a right view of a battery slurry preparation device provided in this application;

[0028] Figure 4 This is a structural diagram of the dispersion disk of a battery slurry preparation device provided in this application;

[0029] Figure 5 This is a structural diagram of the rotating shaft of a battery slurry preparation device provided in this application;

[0030] Figure 6 This is a partial view of the dispersion disc of a battery slurry preparation device provided in this application;

[0031] Figure 7 This is an end cap diagram of a battery slurry preparation device provided in this application.

[0032] The reference numerals in the above figures are as follows: 1. Shell; 2. First feed inlet; 3. Second feed inlet; 4. Discharge outlet; 5. First through hole; 6. Spiral channel; 7. Inlet; 8. Outlet; 9. Rotating shaft; 10. Second through hole; 11. Shaft pin key; 12. Slot; 13. Screw bushing; 14. Crushing disc bushing; 15. First kneading screw bushing; 16. Second kneading screw bushing; 17. Thread; 18. Rotary joint; 19. Drive gear; 20. End cover; 21. Sealing ring; 22. Support base. Detailed Implementation

[0033] The technical solutions of the present invention 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 invention, and not all embodiments. In addition, the accompanying drawings of the present invention are only simple schematic illustrations and are not depictions based on actual dimensions, as stated in advance.

[0034] In this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "forward," "backward," "between," "nearer," and "farthest" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. It should also be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] It should be understood that while terms such as "first end" and "second end" may be used in this document to describe various components, these terms are only used to indicate the relative positions of structures and to distinguish one component from another, and should not restrict the positions of structures. Furthermore, the term "or" used in this document should, depending on the specific circumstances, include any combination of one or more related items listed.

[0036] Reference Figures 1 to 7 This application provides a battery slurry preparation device, including a housing 1 and a rotating shaft 9 and a dispersion disk disposed inside the housing 1.

[0037] like Figure 1 , Figure 2 and Figure 3 As shown, the housing 1 has an overall cylindrical structure. The housing 1 has a first through hole 5 arranged along its axial direction. The two ends of the housing 1 are provided with detachable end caps 20.

[0038] In one embodiment, bolt holes are provided at corresponding positions on the end cap 20 and the housing 1, and bolts are inserted into the bolt holes to connect the end cap 20 and the housing 1.

[0039] To improve the sealing of the connection between the end cap 20 and the housing 1, a sealing ring 21 is provided on the side of the end cap 20 facing the housing 1.

[0040] In this embodiment, a support base 22 is also provided on the outside of the housing 1, and the support base 22 is connected to the end cover 20.

[0041] The housing 1 is provided with a feed inlet and a discharge outlet 4. The feed inlet is located near the first end of the housing 1, and the discharge outlet 4 is located near the second end of the housing 1. In this embodiment, the feed inlet includes a first feed inlet 2 and a second feed inlet 3. The first feed inlet 2 is for liquid materials to enter, and the second feed inlet 3 is for powder materials to enter. In order to prevent the powder materials from clogging the second feed inlet 3, the liquid materials are first fed into the housing 1 through the first feed inlet 2, and then the powder materials are fed into the housing 1 through the second feed inlet 3 according to a preset feeding time difference.

[0042] In this embodiment, a channel 6 for the flow of cooling medium is provided between the inner wall of the housing 1 facing the first through hole 5 and the outer wall of the housing 1 to cool and reduce the temperature of the slurry from the outside.

[0043] In another possible embodiment, housing 1 includes a first housing and a second housing, the second housing surrounding the outer periphery of the first housing, and a channel 6 is formed between the first housing and the second housing.

[0044] The housing 1 is provided with an inlet 7 and an outlet 8 that communicate with the channel 6. Optionally, the inlet 7 is located at the second end of the housing 1 near the discharge port 4, and the outlet 8 is located at the first end of the housing 1 near the feed port, so that the cooling direction of the cooling medium is opposite to the dispersion direction of the dispersion disc.

[0045] The shape and length of channel 6 can be flexibly set according to actual conditions. In this embodiment, channel 6 is a spiral channel and extends from the second end of housing 1 to the first end.

[0046] In other possible embodiments, channel 6 can be two or more independent channels. When channel 6 is two or more independent channels, the flow rate and velocity of the cooling medium can be controlled independently in different channels. The position of the channels can be flexibly adjusted according to the heat generation in different areas of the slurry, further improving the accuracy and efficiency of cooling. Each channel is also equipped with an inlet and an outlet. This ensures that the cooling medium forms a stable flow circulation within the channel, continuously and effectively removing the heat generated by the slurry. Optionally, the cooling medium is cooling water.

[0047] A rotating shaft 9 passes through the first through hole 5, and its first end extends to the outside of the housing 1. A drive gear 19 is fitted onto the first end of the rotating shaft 9, which is used to connect with an external drive device. This application uses a rotating shaft 9 to connect the dispersion disk, which is simpler in structure than the prior art method of using two screws to fix the dispersion disk. It can also solve the problem of metal friction caused by the meshing of the two screws and the resulting metal foreign matter affecting the battery's self-discharge performance.

[0048] The rotating shaft 9 is provided with a second through hole 10 arranged along its axial direction. The second through hole 10 is used to communicate with an external water source so that cooling water can pass through the rotating shaft 9 to cool the inside of the slurry. Optionally, the external water source enters from the second end of the second through hole 10 near the discharge port 4 and flows out from the first end of the second through hole 10 near the feed port, so that the cooling direction of the cooling water is opposite to the dispersion direction of the dispersion disc.

[0049] The inner wall of the rotating shaft 9 is provided with a thread 17, which is located near the ends of the rotating shaft 9. The thread 17 is used to connect the rotary joint 18, thereby connecting to an external water source.

[0050] A dispersing disc is mounted on the rotating shaft 9. The dispersing disc includes at least one bushing, with the appropriate bushing size determined according to the solid content of the material in the slurry. For example, when processing materials with high solid content, the number of crushing disc bushings can be increased to enhance the crushing effect; when processing materials with low solid content, the number of crushing disc bushings can be reduced and the proportion of kneading screw bushings can be increased to optimize the kneading effect.

[0051] like Figure 1 and Figure 4 As shown, the dispersion disc in this embodiment includes, sequentially arranged along the material dispersion direction: a pusher screw sleeve 13, used for initial mixing of liquid and powder materials, and pushing the mixture towards the next sleeve for initial kneading; two crushing disc sleeves 14, used to break up clumps of the powder-liquid mixture into smaller pieces, facilitating subsequent kneading and increasing the contact area between the liquid and powder; a first kneading screw sleeve 15, performing secondary kneading to promote the wetting of the liquid and powder; and a crushing disc sleeve 14, further breaking up clumps of dry material partially encased after secondary kneading, allowing the powder material to more fully contact the liquid material for wetting. Finally, a second kneading screw sleeve 16, performing tertiary kneading to further promote the wetting of the liquid and powder, ensuring the slurry is thoroughly and uniformly mixed.

[0052] like Figure 5 and Figure 6 As shown, there are shaft pins 11 on both opposite sides of the rotating shaft 9. The inside of the dispersing disc (taking the crushing disc bushing 14 as an example in the figure) is provided with a slot 12 that corresponds to the position, shape and size of the shaft pin 11. During installation, the slot 12 is locked on the shaft pin 11, thereby fixing the dispersing disc on the rotating shaft 9.

[0053] It should be noted that the shape, size and number of the pivot key 11 can be set according to the actual situation, such as long strip, cluster or other structure, and this application does not make specific limitations here.

[0054] This utility model uses specific embodiments to illustrate the principle and implementation of the utility model. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​the utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​the utility model. Therefore, the content of this specification should not be construed as a limitation of the utility model.

Claims

1. A battery slurry preparation device, characterized in that, include: The housing has an inlet and an outlet, a first through hole arranged along its axial direction inside the housing, a channel for the flow of cooling medium between the inner wall and the outer wall of the housing, and an inlet and an outlet communicating with the channel on the housing. A rotating shaft is inserted into the first through hole, and the rotating shaft is provided with a second through hole arranged along its axial direction, the second through hole being able to communicate with an external water source; A dispersing disc, which is sleeved on the rotating shaft, includes at least one bushing.

2. The battery slurry preparation apparatus according to claim 1, characterized in that, The inlet of the channel is located at the end of the housing opposite to the feed inlet, and the outlet of the channel is located at the end of the housing close to the feed inlet.

3. The battery slurry preparation device according to claim 1, characterized in that, The channel is a spiral channel, which is a continuous channel extending from one end of the housing to the other end, or two or more independent channels, each channel having an inlet and an outlet.

4. The battery slurry preparation device according to claim 1, characterized in that, The rotating shaft is provided with a pivot key, and the dispersing disk is provided with a slot corresponding to the pivot key. The dispersing disk is fixed on the rotating shaft by the pivot key and the slot.

5. The battery slurry preparation apparatus according to claim 1, characterized in that, The dispersion disc includes a push screw bushing, a crushing disc bushing, a first kneading screw bushing, a crushing disc bushing, and a second kneading screw bushing, arranged sequentially along the material dispersion direction.

6. The battery slurry preparation apparatus according to claim 1, characterized in that, The feed inlet includes a first feed inlet and a second feed inlet, and the first feed inlet and the second feed inlet have a feeding time difference.

7. The battery slurry preparation apparatus according to claim 1, characterized in that, The inner wall of the rotating shaft is provided with threads, which are located near the ends of the rotating shaft.

8. The battery slurry preparation apparatus according to claim 1, characterized in that, At least one end of the shaft extends to the outside of the housing, and a drive gear is connected to the shaft extending to the outside of the housing.

9. A battery slurry preparation apparatus according to claim 1, characterized in that, It also includes end caps located at both ends of the housing, the end caps being detachably connected to the housing, and the side of the end cap facing the housing having a sealing ring.

10. A battery slurry preparation apparatus according to claim 9, characterized in that, It also includes a support base, which is connected to the end cap.

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