A dispersing and coating device

Abstract

This utility model relates to the field of powder processing technology, and in particular to a dispersing and coating device. The dispersing and coating device includes a drive mechanism, a housing, and a rotating hub. The housing includes an outer shell, a first cover, and a second cover. The outer shell has openings at both ends along its axial direction. The first cover includes a cover body and an inner cylinder connected together. The cover body and the second cover respectively seal the corresponding openings. The rotating hub is disposed inside the outer shell and rotatably connected to the second cover. The inner cylinder is disposed inside the rotating hub and cooperates with the rotating hub to form an inner cavity. The rotating hub cooperates with the outer shell to form the inner cavity. The inner cylinder is connected to the inner cavity, and the inner cavity is connected to the outer cavity. An inner cavity dispersing mechanism is provided inside the inner cavity, and an outer cavity dispersing mechanism is provided inside the outer cavity. The rotating hub can rotate around its axial direction to disperse the powder material and move the powder material from the inner cavity to the outer cavity. The drive mechanism is used to drive the rotating hub to rotate, thereby improving the efficiency and effect of powder material dispersing and mixing; reducing the impact of instantaneous acceleration on powder material particles, and maintaining the original particle size and morphology.

Description

Technical Field

[0001] This utility model relates to the field of powder processing technology, and in particular to a dispersing and coating device. Background Technology

[0002] In the field of powder material processing, submicron (0.1-1μm), micron (1-100μm), and nano (<100nm) powders, due to their high specific surface area and surface energy, are highly susceptible to spontaneous agglomeration and hard caking caused by van der Waals forces, electrostatic interactions, and humidity. Agglomerated and caking powders not only lose their original superior properties but also affect subsequent processing and application effects, such as leading to uneven material properties and reduced product quality.

[0003] To address the aforementioned issues, two main technologies exist for de-agglomerating or dispersing agglomerated or clustered powder materials: the first is high-speed shearing / stirring, and the second is high-energy ball milling / sand milling. However, the first method significantly pulverizes the powder materials, easily altering their particle size and morphology, thus changing product performance. The second method, after dispersing the material, often results in soft agglomeration due to factors such as particle size, temperature, and humidity, with a soft agglomeration time of 0.1 to 0.9 seconds. Therefore, the dispersal and agglomeration of many powder materials is a dynamic process, requiring the addition of modifiers under de-agglomeration conditions to mix into the agglomerated particles, resulting in more uniform dispersion and coating. Consequently, this method requires more than two dispersal and de-agglomeration processes, prolonging the dispersal time and reducing the efficiency of dispersal and coating.

[0004] Therefore, there is an urgent need for a dispersing and coating device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a dispersing and coating device. The powder material undergoes initial dispersing and coating in the inner cavity and secondary continuous dispersing and coating in the outer cavity. This extends the mixing and coating path of the powder material particles in the deagglomerated state, doubling the deagglomeration time of the powder material. It achieves the effect of two machines connected in series, improving the mixing uniformity and coating rate, and enhancing the efficiency and effect of powder material dispersing and mixing. The dispersing speed of the powder material gradually increases from the inner cavity to the outer cavity, reducing the impact of instantaneous acceleration on the powder material particles and maintaining the original particle size and morphology to the greatest extent.

[0006] To achieve the above objectives, the following technical solution is provided:

[0007] A dispersing and coating device, comprising:

[0008] The housing includes an outer shell, a first cover, and a second cover. The outer shell has openings at both ends in the axial direction. The first cover includes a cover body and an inner cylinder connected together. The cover body and the second cover are respectively sealed in the corresponding openings.

[0009] A rotating hub is disposed within the outer casing. An inner cylinder is disposed within the rotating hub and cooperates with the rotating hub to form an inner cavity. The rotating hub cooperates with the outer casing to form an outer cavity. The inner cylinder is connected to the inner cavity, and the inner cavity is connected to the outer cavity. An inner cavity dispersing mechanism is provided within the inner cavity, and an outer cavity dispersing mechanism is provided within the outer cavity. The rotating hub can rotate around the axial direction to disperse powder materials and move the powder materials from the inner cavity to the outer cavity.

[0010] A drive mechanism is used to drive the hub to rotate.

[0011] As an optional solution, the hub includes:

[0012] A cylindrical body is disposed between the inner cylinder and the outer shell. The cylindrical body has a first end near the cover body of the first cover and a second end near the second cover. The first end of the cylindrical body is spaced apart from the cover body of the first cover so that the inner cavity communicates with the outer cavity.

[0013] A sealing part is provided at the second end of the cylinder body, and the sealing part is spaced apart from the end of the inner cylinder so that the inner cylinder is connected to the inner cavity.

[0014] As an optional solution, the sealing part includes a main body and a plurality of blades. The main body is disposed at the second end of the cylinder and connected to the end of the cylinder. The plurality of blades are disposed on the side of the sealing part facing the cylinder and are circumferentially spaced relative to the rotation axis of the hub.

[0015] As an optional solution, the sealing part has a protrusion extending towards the cylinder on the side facing the cylinder, and a plurality of the blades are disposed on the protrusion;

[0016] And / or, the drive mechanism is connected to the sealing part to drive the hub to rotate.

[0017] As an optional solution, the drive mechanism includes:

[0018] Drive components;

[0019] A transmission assembly includes a driving wheel, a driven wheel, an annular transmission belt, and a transmission shaft. The driven wheel is connected to the hub via the transmission shaft. The annular transmission belt surrounds the outer periphery of the driving wheel and the driven wheel and is tensioned by the driving wheel and the driven wheel. The driving wheel is located at the output end of the driving member, and the driving member is used to drive the driving wheel to rotate.

[0020] As an optional solution, the inner cavity dispersing mechanism includes a first pin disposed on the outer side wall of the inner cylinder and a second pin disposed on the inner side wall of the hub, wherein the first pin and the second pin are arranged alternately.

[0021] The outer cavity disintegration mechanism includes a third pin disposed on the inner side wall of the outer shell and a fourth pin disposed on the outer side wall of the rotating hub, the third pin and the fourth pin being arranged alternately.

[0022] As an optional solution, there may be multiple first pins, which are arranged at intervals along the circumferential and / or axial direction of the inner cylinder.

[0023] And / or, the number of the second pins is multiple, and the multiple second pins are arranged at intervals along the circumferential and / or axial direction of the inner cylinder;

[0024] And / or, the number of the third pins is multiple, and the multiple third pins are arranged at intervals along the circumferential and / or axial direction of the inner cylinder;

[0025] And / or, the number of the fourth pins is multiple, and the multiple fourth pins are arranged at intervals along the circumferential and / or axial direction of the inner cylinder.

[0026] As an optional solution, the outer peripheral surface of the first pin is provided with a first groove extending along its axial direction.

[0027] And / or, the outer peripheral surface of the second pin is provided with a second groove extending axially therefrom;

[0028] And / or, the outer peripheral surface of the third pin is provided with a third groove extending axially therefrom;

[0029] And / or, the outer peripheral surface of the fourth pin is provided with a fourth groove extending axially.

[0030] As an optional solution, the dispersing and coating device further includes:

[0031] The feeding mechanism includes a feeding channel that is connected to the inner cylinder.

[0032] As an optional solution, the second cover has a discharge port that is connected to the outer cavity.

[0033] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0034] The dispersing and coating device provided by this utility model achieves the dispersing and coating of powder materials by setting pins in the inner and outer cavities. The powder materials undergo initial dispersing and coating in the inner cavity and secondary continuous dispersing and coating in the outer cavity, which prolongs the mixing and coating path of the powder material particles in the deagglomerated state, doubling the deagglomeration time of the powder materials. This achieves the effect of two machines connected in series, improving the mixing uniformity and coating rate. Since the rotation speed of the drum is constant, the radial dimension of the outer cavity is larger than that of the inner cavity, so the dispersing speed of the powder materials gradually increases from the inner cavity to the outer cavity. Therefore, it reduces the impact of instantaneous acceleration on the powder material particles and maintains the original particle size morphology to the greatest extent. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model 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 the content of the embodiments of this utility model and these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the structure of the dispersing and coating device provided in an embodiment of the present utility model;

[0037] Figure 2 Exploded view of the dispersing and coating device provided in the embodiment of this utility model;

[0038] Figure 3 A cross-sectional view of the dispersing and coating device provided in an embodiment of this utility model;

[0039] Figure 4 A schematic diagram of the structure of the first cover and the first pin provided in an embodiment of this utility model;

[0040] Figure 5 A schematic diagram of the outer shell and the third pin provided in an embodiment of this utility model;

[0041] Figure 6 A schematic diagram of the structure of the hub, the second pin, and the fourth pin provided in an embodiment of this utility model.

[0042] Figure label:

[0043] 100. Dispersing and coating device;

[0044] 10. Drive mechanism; 11. Drive component; 12. Driving pulley; 13. Driven pulley; 14. Circular transmission belt; 15. Transmission shaft;

[0045] 20. Shell; 2001. Inner cavity; 2002. Outer cavity; 21. Outer shell; 22. First cover; 221. Cover body; 222. Inner cylinder; 23. Second cover; 231. Discharge port;

[0046] 30. Feeding mechanism; 31. Feeding channel;

[0047] 40. Hub; 41. Sealing part; 411. Main body; 412. Protrusion; 42. Cylinder; 43. Blade;

[0048] 51. First pin; 52. Second pin; 53. Third pin; 54. Fourth pin;

[0049] 60. Base. Detailed Implementation

[0050] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0051] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and 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, and therefore should not be construed as a limitation of this application.

[0052] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0053] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0054] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0055] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0056] like Figures 1-5As shown, this embodiment provides a dispersing and coating device 100 for dispersing, de-agglomerating, or coating agglomerated or clustered powder materials. Specifically, the dispersing and coating device 100 includes a driving mechanism 10, a housing 20, and a rotating hub 40. The housing 20 includes an outer shell 21, a first cover 22, and a second cover 23. The outer shell 21 has openings at both axial ends. The first cover 22 includes a cover body 221 and an inner cylinder 222 connected together. The cover body 221 and the second cover 23 respectively seal the corresponding openings. The rotating hub 40 is disposed inside the outer shell 21 and rotatably connected to the second cover 23. The inner cylinder 222 is disposed inside the rotating hub 40 and rotatably connected to the second cover 23. The rotating hub 40 forms an inner cavity 2001, and the rotating hub 40 and the outer shell 21 form an outer cavity 2002. The inner cylinder 222 is connected to the inner cavity 2001, and the inner cavity 2001 is connected to the outer cavity 2002. An inner cavity dispersing mechanism is provided in the inner cavity 2001, and an outer cavity dispersing mechanism is provided in the outer cavity 2002. The rotating hub 40 can rotate around its axial direction to disperse the powder material and move the powder material from the inner cavity 2001 to the outer cavity 2002. The driving mechanism 10 can be used to drive the rotating hub 40 to rotate.

[0057] The dispersing and coating device 100 provided in this embodiment disperses and coats powder materials by setting pins in the inner cavity 2001 and the outer cavity 2002. The powder materials undergo initial dispersing and coating in the inner cavity 2001 and secondary continuous dispersing and coating in the outer cavity 2002, which prolongs the mixing and coating path of the powder material particles in the deagglomeration state, doubles the deagglomeration time of the powder materials, and achieves the effect of two machines connected in series, improving the mixing uniformity and coating rate, and the efficiency and effect of dispersing and mixing powder materials. Since the rotation speed of the rotating hub 40 is constant, the radial dimension of the outer cavity 2002 is larger than that of the inner cavity 2001, so the dispersing speed of the powder materials gradually increases from the inner cavity 2001 to the outer cavity 2002. Therefore, the impact of instantaneous acceleration on the powder material particles is reduced, and the original particle size morphology is maintained to the greatest extent.

[0058] Understandably, when agglomerated or clustered powder materials are poured into the dispersing and coating device 100, the dispersing and coating device 100 disperses or deagglomerates the powder materials; in order to improve the performance of the powder materials, when modifiers and agglomerated or clustered powder materials are poured into the dispersing and coating device 100, the dispersing and coating device 100 disperses, deagglomerates and coats the powder materials.

[0059] Optionally, the dispersing and coating device 100 also includes a base 60, on which the housing 20 is disposed, and the base 60 provides stable support for the housing 20.

[0060] Optionally, the drive mechanism 10 includes a drive element 11 and a transmission assembly. The drive element 11 is mounted on the base 60, and the rotating hub 40 is connected to the output end of the drive element 11 via the transmission assembly. By setting the transmission assembly, the layout of the drive element 11 is facilitated, thereby reducing the space occupied by the dispersing and covering device 100. The drive element 11 can be an existing motor, cylinder, or hydraulic cylinder, etc.

[0061] Specifically, the transmission assembly includes a driving pulley 12, a driven pulley 13, and an annular transmission belt 14. The driven pulley 13 is connected to the hub 40 via a transmission shaft 15. The annular transmission belt 14 surrounds the driving pulley 12 and the driven pulley 13 and is tensioned by both. The driving pulley 12 is located at the output end of the drive member 11, which drives the driving pulley 12 to rotate. The driving pulley 12 drives the driven pulley 13 to rotate via the annular transmission belt 14, thereby causing the hub 40 to rotate. By using the annular transmission belt 14, the transmission efficiency is high and the transmission is smooth. Optionally, to avoid slippage between the annular transmission belt 14 and the driving pulley 12 and the driven pulley 13, a tensioner can be used to tension the annular transmission belt 14. The specific structure and working principle of the tensioner are existing technologies and will not be described in detail here.

[0062] Optionally, the dispersing and coating device 100 also includes a feeding mechanism 30, which includes a feeding channel 31 connected to the inner cylinder 222. The feeding mechanism 30 facilitates the feeding of powder materials.

[0063] To facilitate understanding, the process of dispersing and coating powder materials will be explained using graphite anode materials as an example:

[0064] Dispersion process: The graphite anode material is fed into the inner cavity 2001 through the feed channel 31. The graphite anode material is dispersed by the blades 43, the inner cavity dispersion mechanism, and the outer cavity dispersion mechanism.

[0065] Dispersion and coating process: Graphite anode material and modifier carbon nanotubes are simultaneously fed into the inner cavity 2001 through the feed channel 31. The graphite anode material is dispersed by the blades 43, the inner cavity dispersion mechanism, and the outer cavity dispersion mechanism. At the same time, carbon nanotubes can be mixed into the dispersed graphite anode material. The above process realizes the dispersion and coating of graphite anode material. By coating the graphite anode material with carbon nanotubes, the energy density and cycle life of the battery can be improved.

[0066] In other embodiments, the anode material can also be a silicon-carbon anode material, a silicon-oxygen anode material, or other powder materials. The modifier can also be other suitable modifiers, such as artificial SEI material modifiers.

[0067] Optionally, the upper end of the feeding mechanism 30 is an outwardly flared funnel shape, which can increase the feeding range and facilitate guiding the powder material into the feeding channel 31.

[0068] Optionally, such as Figure 6 As shown, the hub 40 includes a cylindrical body 42 and a sealing part 41. The cylindrical body 42 is disposed between the inner cylinder 222 and the outer shell 21. The cylindrical body 42 has a first end near the cover body 221 of the first cover 22 and a second end near the second cover 23. The first end of the cylindrical body 42 is spaced apart from the cover body 221 of the first cover 22 so that the inner cavity 2001 communicates with the outer cavity 2002. The sealing part 41 is disposed at the second end of the cylindrical body 42. The sealing part 41 is spaced apart from the end of the inner cylinder 222 so that the inner cylinder 222 communicates with the inner cavity 2001.

[0069] Optionally, the sealing part 41 includes a main body 411 and a plurality of blades 43. The main body 411 is disposed at the second end of the cylinder 42 and connected to the end of the cylinder 42. The plurality of blades 43 are disposed on the side of the sealing part 41 facing the cylinder 42 and are circumferentially spaced relative to the rotation axis of the rotating hub 40. After the powder material enters the inner cavity 2001 through the feeding channel 31, the powder material is initially dispersed by the blades 43 to make the feeding uniform and further improve the efficiency and effect of powder material dispersion and mixing.

[0070] Optionally, the sealing part 41 has a protrusion 412 extending towards the cylinder 42 on the side facing the cylinder 42, and multiple blades 43 are disposed on the protrusion 412. A drive mechanism 10 is connected to the sealing part 41 to drive the rotating hub 40 to rotate. In this embodiment, the rotating hub 40 is connected to the driven wheel 13 via a drive shaft 15. The drive shaft 15 passes through the protrusion 412. By providing the protrusion 412, the connection area between the drive shaft 15 and the rotating hub 40 can be increased, thereby making the connection between the drive shaft 15 and the rotating hub 40 more stable.

[0071] Optionally, the radial dimension of the protrusion 412 gradually increases along the direction from the first cover 22 to the second cover 23. As the hub 40 rotates at high speed, the powder material is accelerated, causing the powder material to move from the inner cavity 2001 to the outer cavity 2002.

[0072] Optionally, the second cover 23 is provided with a discharge port 231, which is connected to the outer cavity 2002 so that the dispersing and covering device 100 can automatically discharge the material.

[0073] Optionally, the inner cavity dispersing mechanism includes a first pin 51 disposed on the outer side wall of the inner cylinder 222 and a second pin 52 disposed on the inner side wall of the rotating hub 40, with the first pin 51 and the second pin 52 arranged alternately. The outer cavity dispersing mechanism includes a third pin 53 disposed on the inner side wall of the outer shell 21 and a fourth pin 54 disposed on the outer side wall of the rotating hub 40, with the third pin 53 and the fourth pin 54 arranged alternately. When the rotating hub 40 rotates, it drives the second pin 52 and the fourth pin 54 to rotate. The second pin 52 and the first pin 51 cooperate to collide, shear, and rub against the powder material located in the inner cavity 2001, thereby dispersing and coating the powder material in the inner cavity 2001. The fourth pin 54 and the third pin 53 cooperate to collide, shear, and rub against the powder material located in the outer cavity 2002, thereby dispersing and coating the powder material in the outer cavity 2002. In this embodiment, the second pin 52 and the fourth pin 54 are integrally formed. The integrally formed second pin 52 and fourth pin 54 are inserted into the cylinder 42 to improve the overall strength of the second pin 52 and the fourth pin 54 and reduce the assembly steps of the second pin 52, the fourth pin 54 and the cylinder 42.

[0074] Optionally, there are multiple first pins 51, which are arranged at intervals along the circumference and / or axial direction of the inner cylinder 222. Optionally, there are multiple second pins 52, which are arranged at intervals along the circumference and / or axial direction of the inner cylinder 222. Optionally, there are multiple third pins 53, which are arranged at intervals along the circumference and / or axial direction of the inner cylinder 222. Optionally, there are multiple fourth pins 54, which are arranged at intervals along the circumference and / or axial direction of the inner cylinder 222 to improve the mixing, dispersing, and coating effect of powder materials.

[0075] Optionally, the outer peripheral surface of the first pin 51 has a first groove extending axially therein. Optionally, the outer peripheral surface of the second pin 52 has a second groove extending axially therein. Optionally, the outer peripheral surface of the third pin 53 has a third groove extending axially therein. Optionally, the outer peripheral surface of the fourth pin 54 has a fourth groove extending axially therein. By providing the first, second, third, and fourth grooves, the number of collisions between the powder material and the inner and outer cavity dispersing mechanisms can be effectively increased, thereby improving the efficiency and effect of dispersing and mixing.

[0076] Optionally, there are multiple first grooves, arranged at intervals along the circumference of the first pin 51. Optionally, there are multiple second grooves, arranged at intervals along the circumference of the second pin 52. Optionally, there are multiple third grooves, arranged at intervals along the circumference of the third pin 53. Optionally, there are multiple fourth grooves, arranged at intervals along the circumference of the fourth pin 54. This further improves the efficiency and effect of dispersing and mixing.

[0077] Note that in the description of this specification, the references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0078] The above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A deagglomeration coating apparatus characterized by, include: The housing (20) includes an outer shell (21), a first cover (22) and a second cover (23). The outer shell (21) has openings at both ends in the axial direction. The first cover (22) includes a cover body (221) and an inner cylinder (222) connected to each other. The cover body (221) and the second cover (23) are respectively sealed in the corresponding openings. A rotating hub (40) is disposed inside the outer shell (21). An inner cylinder (222) is disposed inside the rotating hub (40) and cooperates with the rotating hub (40) to form an inner cavity (2001). The rotating hub (40) cooperates with the outer shell (21) to form an outer cavity (2002). The inner cylinder (222) is connected to the inner cavity (2001). The inner cavity (2001) is connected to the outer cavity (2002). An inner cavity dispersing mechanism is provided in the inner cavity (2001). An outer cavity dispersing mechanism is provided in the outer cavity (2002). The rotating hub (40) can rotate around the axial direction to disperse the powder material and move the powder material from the inner cavity (2001) to the outer cavity (2002). The drive mechanism (10) is used to drive the hub (40) to rotate.

2. The de-bagging apparatus of claim 1, wherein, The hub (40) includes: A cylindrical body (42) is disposed between the inner cylinder (222) and the outer shell (21). The cylindrical body (42) has a first end near the cover body (221) of the first cover body (22) and a second end near the second cover body (23). The first end of the cylindrical body (42) is spaced apart from the cover body (221) of the first cover body (22) so that the inner cavity (2001) communicates with the outer cavity (2002). A sealing part (41) is provided at the second end of the cylinder (42), and the sealing part (41) is spaced apart from the end of the inner cylinder (222) so that the inner cylinder (222) is connected to the inner cavity (2001).

3. The de-bagging apparatus of claim 2, wherein, The sealing part (41) includes a main body (411) and a plurality of blades (43). The main body (411) is disposed at the second end of the cylinder (42) and connected to the end of the cylinder (42). The plurality of blades (43) are disposed on the side of the sealing part (41) facing the cylinder (42) and are circumferentially spaced relative to the rotation axis of the hub (40).

4. The de-bagging apparatus of claim 3, wherein, The sealing part (41) has a protrusion (412) extending toward the cylinder (42) on the side facing the cylinder (42), and a plurality of blades (43) are disposed on the protrusion (412); And / or, the drive mechanism (10) is connected to the sealing part (41) to drive the hub (40) to rotate.

5. The de-bagging apparatus of claim 1, wherein, The drive mechanism (10) includes: Drive component (11); The transmission assembly includes a drive wheel (12), a driven wheel (13), an annular transmission belt (14), and a transmission shaft (15). The driven wheel (13) is connected to the hub (40) via the transmission shaft (15). The annular transmission belt (14) surrounds the outer periphery of the drive wheel (12) and the driven wheel (13) and is tensioned by the drive wheel (12) and the driven wheel (13). The drive wheel (12) is located at the output end of the drive member (11), and the drive member (11) is used to drive the drive wheel (12) to rotate.

6. The dispersing and coating device according to claim 1, characterized in that, The inner cavity dispersing mechanism includes a first pin (51) disposed on the outer side wall of the inner cylinder (222) and a second pin (52) disposed on the inner side wall of the hub (40), wherein the first pin (51) and the second pin (52) are arranged alternately. The outer cavity disintegration mechanism includes a third pin (53) disposed on the inner side wall of the outer shell (21) and a fourth pin (54) disposed on the outer side wall of the rotating hub (40), wherein the third pin (53) and the fourth pin (54) are arranged alternately.

7. The dispersing and coating device according to claim 6, characterized in that, The number of the first pins (51) is multiple, and the multiple first pins (51) are arranged at intervals along the circumferential and / or axial direction of the inner cylinder (222); And / or, the number of the second pins (52) is multiple, and the multiple second pins (52) are arranged at intervals along the circumferential and / or axial direction of the inner cylinder (222); And / or, the number of the third pins (53) is multiple, and the multiple third pins (53) are arranged at intervals along the circumferential and / or axial direction of the inner cylinder (222); And / or, there are multiple fourth pins (54), and the multiple fourth pins (54) are arranged at intervals along the circumferential and / or axial direction of the inner cylinder (222).

8. The dispersing and coating device according to claim 7, characterized in that, The outer peripheral surface of the first pin (51) is provided with a first groove extending along its axial direction. And / or, the outer peripheral surface of the second pin (52) is provided with a second groove extending axially therefrom; And / or, the outer peripheral surface of the third pin (53) is provided with a third groove extending axially therefrom; And / or, the outer peripheral surface of the fourth pin (54) is provided with a fourth groove extending axially.

9. The dispersing and coating device according to any one of claims 1-8, characterized in that, The dispersing and coating device further includes: The feeding mechanism (30) includes a feeding channel (31) which is connected to the inner cylinder (222).

10. The dispersing and coating device according to any one of claims 1-8, characterized in that, The second cover (23) has a discharge port (231) which is connected to the outer cavity (2002).

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