Gas-solid reaction device and battery production system

Abstract

The embodiment of the utility model provides a gas-solid reaction device and a battery production system, and relates to the technical field of batteries. The gas-solid reaction device comprises a reaction container, a feeding assembly and a scattering assembly, the reaction container comprises a top wall, a bottom wall and a side wall connected between the top wall and the bottom wall in a surrounding mode, and a reaction cavity is defined by the top wall, the bottom wall and the side wall; the feeding assembly is located in the reaction cavity, the feeding assembly is provided with a feeding port facing the bottom wall and a discharging port facing the top wall, and the feeding assembly is configured to introduce powder in the reaction cavity from the feeding port and discharge the powder to the reaction cavity from the discharging port; the scattering assembly is located between the discharging port and the top wall and used for scattering powder discharged from the discharging port. The feeding assembly and the scattering assembly are arranged in the reaction container, the powder in the reaction cavity is conveyed to the scattering assembly through the feeding assembly to be scattered, the possibility that the powder is caked is reduced, the powder can make full contact with reaction gas, and the reaction efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and more specifically, to a gas-solid reaction device and a battery production system. Background Art

[0002] Batteries are widely used in electronic devices, such as mobile phones, laptops, electric vehicles, electric cars, electric airplanes, electric boats, electric toy cars, electric toy boats, electric toy airplanes and power tools, etc.

[0003] In the production process of batteries, the precursor powder of battery materials can be prepared through a gas-solid reaction device. During the powder preparation process, the powder is prone to agglomeration, resulting in insufficient powder reaction and low reaction efficiency. Utility Model Content

[0004] The present application provides a gas-solid reaction device, which can reduce the possibility of powder material agglomeration and improve the powder material reaction efficiency.

[0005] In the first aspect, an embodiment of the present application provides a gas-solid reaction device, comprising a reaction container, a feeding assembly and a breaking up assembly, wherein the reaction container comprises a top wall, a bottom wall and a side wall connected between the top wall and the bottom wall, wherein the top wall, the bottom wall and the side wall form a reaction chamber; the feeding assembly is located in the reaction chamber, and the feeding assembly is provided with a feed port facing the bottom wall and a discharge port facing the top wall, and the feeding assembly is configured to introduce the powder in the reaction chamber from the feed port into the feeding assembly and discharge it back to the reaction chamber through the discharge port; the breaking up assembly is located between the discharge port and the top wall, and is used to break up the powder discharged from the discharge port.

[0006] By adopting the above technical solution, a feeding component and a breaking component are arranged in the reaction container. The powder in the reaction chamber is transported to the breaking component for breaking through the feeding component, which reduces the possibility of powder agglomeration and enables the powder to fully contact with the reaction gas, thereby improving the reaction efficiency.

[0007] In some embodiments of the present application, the loading assembly includes a loading barrel, a conveying mechanism and a driving member. The loading barrel is provided with the feed port and the discharge port. The conveying mechanism is passed through the loading barrel. The conveying mechanism is used to introduce the powder into the loading barrel from the feed port and discharge it from the discharge port. The driving member is installed on the reaction container and connected to the conveying mechanism.

[0008] By adopting the above technical solution, the feeding assembly is designed to include a feeding barrel, a conveying mechanism and a driving member. The feeding barrel defines the conveying space for the powder, and the driving member is used to drive the conveying mechanism to move, thereby driving the powder in the feeding barrel to move toward the discharge port.

[0009] In some embodiments of the present application, the conveying mechanism includes a conveying shaft and a spiral conveying sheet, the conveying shaft includes a first end and a second end in opposite directions, the first end is connected to the bottom wall in a manner that can rotate around its own axis, the spiral conveying sheet is connected to the conveying shaft, and the spiral conveying sheet extends from the first end along the axial direction of the conveying shaft to between the discharge port and the disintegration component.

[0010] By adopting the above technical solution, a spiral conveying structure is formed by utilizing the bolt conveying sheet and the conveying shaft, so that the conveying is stable and efficient.

[0011] In some embodiments of the present application, the breaking up assembly is connected to the conveying shaft and rotates synchronously with the conveying shaft.

[0012] By adopting the above technical solution, the rotation of the conveying shaft during the powder conveying process is used to drive the breaking component to perform the breaking action, which not only realizes the multi-purpose use of the conveying shaft, but also eliminates the need to configure an additional driving structure for the breaking component, which can simplify the structure of the gas-solid reaction device and reduce its production cost.

[0013] In some embodiments of the present application, the dispersing assembly includes a plurality of dispersing parts, and the plurality of dispersing parts are all connected to the conveying shaft and are arranged at intervals along the circumference of the conveying shaft.

[0014] By adopting the above technical solution, the breaking component is designed to include a plurality of breaking pieces, and the powder is broken up by the rotation of the plurality of breaking pieces, and the structure is simple and effective.

[0015] In some embodiments of the present application, the disintegrating piece includes opposite third and fourth ends, the third end is connected to the conveying shaft, and the fourth end is located between the side wall and the loading barrel.

[0016] By adopting the above technical solution, the dispersing piece is designed to extend from the conveying shaft to between the side wall and the upper barrel, so that the dispersing piece has a larger dispersing area and can better disperse the powder discharged from the discharge port.

[0017] In some embodiments of the present application, a plurality of teeth are dispersedly provided on a side of the disintegrating piece facing the bottom wall along the third end to the fourth end.

[0018] By adopting the above technical solution, a plurality of teeth are provided on the side of the dispersing piece facing the bottom wall, and the teeth are utilized to increase the contact area between the dispersing piece and the powder, thereby improving the efficiency of the dispersing piece in dispersing the powder.

[0019] In some embodiments of the present application, a flared section is provided at one end of the upper barrel close to the bottom wall, and the feed port is located at one end of the flared section close to the bottom wall.

[0020] By adopting the above technical solution, a flared section is provided at the lower end of the upper barrel, which can facilitate the powder to enter the upper barrel through the feed port.

[0021] In some embodiments of the present application, a size of the flared section in a first direction gradually increases from one end of the flared section away from the bottom wall to an end close to the bottom wall, and the first direction intersects with the arrangement direction from the top wall to the bottom wall.

[0022] By adopting the above technical solution, the size of the expansion section in the first direction is designed to gradually decrease from bottom to top, so that the powder can be driven upward by the conveying mechanism after entering the feed port.

[0023] In some embodiments of the present application, the gas-solid reaction device further comprises a distribution member located between the scattering assembly and the bottom wall, the distribution member is arranged around the feeding assembly, and the distribution member is provided with a plurality of discharge holes.

[0024] By adopting the above technical solution, the distribution member is used to receive and distribute the broken powder, thereby further increasing the contact area between the powder and the reaction gas and improving the reaction efficiency.

[0025] In some embodiments of the present application, from a side of the distribution member close to the loading assembly to a side away from the loading assembly, a surface of the distribution member facing the top wall is gradually arranged away from the top wall.

[0026] By adopting the above technical solution, the surface of the distribution piece facing the top wall is designed to gradually move away from the inside to the outside, so that the surface of the distribution piece facing the top wall forms an inclined surface that facilitates the powder to slide down, so that the powder can be evenly distributed on the distribution piece and return to the bottom wall again through the discharge hole.

[0027] In some embodiments of the present application, the discharge holes are provided in multiple rows from the side of the distribution member close to the loading assembly to the side away from the loading assembly, and each row includes a plurality of the discharge holes arranged around the loading assembly and the side wall.

[0028] By adopting the above technical solution, multiple rows of discharge holes are provided, and each row is provided with multiple discharge holes surrounding the loading component and the side wall, so as to improve the discharge efficiency of the powder after the distribution piece is distributed, so that the powder can fall to the bottom wall faster, so as to facilitate the discharge or secondary breaking and distribution of the powder.

[0029] In some embodiments of the present application, a tapered section is provided at one end of the side wall close to the bottom wall, and a size of the tapered section in a first direction gradually decreases along the direction from the top wall to the bottom wall, and the first direction intersects with the arrangement direction from the top wall to the bottom wall.

[0030] By adopting the above technical solution, the side wall is provided with a constriction section so that the powder can be accumulated near the feed port more quickly, so that the feeding component can transport the powder near the feed port to the discharge port more quickly for dispersion.

[0031] In some embodiments of the present application, the top wall is provided with a powder inlet.

[0032] By adopting the above technical solution, the powder inlet is arranged on the top wall, and the powder can be directly dispersed by the dispersion component when entering the reaction chamber, thereby reducing the possibility of the powder being tangled.

[0033] In a second aspect, an embodiment of the present application provides a battery production system, comprising a gas-solid reaction device as described in any of the above technical solutions. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without paying creative work.

[0035] Figure 1 A schematic diagram of the structure of a gas-solid reaction device provided in some embodiments of the present application;

[0036] Figure 2 A schematic diagram of the structure of a disintegration component of a gas-solid reaction device provided in some embodiments of the present application;

[0037] Figure 3 A schematic diagram of the structure of the distribution parts of the gas-solid reaction device provided in some embodiments of the present application.

[0038] The reference numerals of the specific embodiments are as follows:

[0039] 100. Gas-solid reaction device;

[0040] 10. reaction container; 11. top wall; 12. bottom wall; 121. bearing; 122. bearing seat; 13. side wall; 131. necking section; 14. reaction chamber; 15. powder inlet; 16. gas inlet; 17. powder outlet; 18. gas outlet; 19. heating inlet; 110. heating outlet;

[0041] 20. Feeding assembly; 21. Feeding barrel; 211. Feeding port; 212. Discharging port; 213. Expanding section; 22. Conveying mechanism; 221. Conveying shaft; 2211. First end; 2212. Second end; 222. Screw conveying sheet; 23. Driving member;

[0042] 30. Break up the assembly; 31. Break up the parts; 311. Third end; 312. Fourth end; 313. Tooth;

[0043] 40. distribution member; 41. first surface; 42. second surface; 43. feed hole;

[0044] X, first direction; Y, second direction. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0046] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0047] Reference to "embodiment" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments.

[0048] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0049] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0050] In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length, width and other dimensions of the integrated device are only exemplary descriptions and should not constitute any limitation to the present application.

[0051] The term "plurality" used in the present application refers to two or more (including two).

[0052] At present, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0053] The gas-solid reaction device, specifically a fluidized bed gas-solid reaction device, is a reactor that uses gas to pass through a granular solid layer to put solid particles in a suspended motion state and perform a gas-solid phase reaction process. In terms of applications in the battery field, the gas-solid reaction device can be used to prepare battery precursor powders.

[0054] However, in the actual production application of gas-solid reaction equipment, due to the poor fluidization of powder, the viscosity, surface tension or chemical properties of powder may cause the particles to attract or adhere to each other, as well as improper control of reaction conditions, the powder is prone to aggregation and knotting, resulting in decreased reaction efficiency, uneven reaction, and low production efficiency and output.

[0055] Therefore, how to reduce the problem of powder agglomeration or aggregation is an important issue in battery production and processing.

[0056] In view of this, the present application provides a technical solution, which breaks up the powder by configuring a breaking component in the reaction container, thereby reducing the possibility of the powder becoming tangled.

[0057] The following is combined with Figure 1-3 The gas-solid reaction device provided in this embodiment is introduced.

[0058] Combined with Figure 1 As shown, a gas-solid reaction device 100 includes a reaction container 10, a feeding assembly 20 and a breaking up assembly 30. The reaction container 10 includes a top wall 11, a bottom wall 12 and a side wall 13 connected between the top wall 11 and the bottom wall 12. The top wall 11, the bottom wall 12 and the side wall 13 form a reaction chamber 14; the feeding assembly 20 is located in the reaction chamber 14, and the feeding assembly 20 is provided with a feed port 211 facing the bottom wall 12 and a discharge port 212 facing the top wall 11. The feeding assembly 20 is configured to introduce the powder in the reaction chamber 14 into the feeding assembly from the feed port 211 and discharge it back to the reaction chamber 14 through the discharge port 212; the breaking up assembly 30 is located between the discharge port 212 and the top wall 11, and is used to break up the powder discharged from the discharge port 212.

[0059] The reaction vessel 10 may be a reaction tank, and its material may be a metal material such as carbon steel, alloy steel, etc. having a certain structural strength and being resistant to high temperature and high pressure. The cross-sectional shape of the top wall 11 and the bottom wall 12 of the reaction vessel 10 along a direction parallel to the second direction Y in the figure may be a straight line or a curved line. The second direction Y is the arrangement direction of the top wall 11 to the bottom wall 12. The cross-sectional shape of the side wall 13 along the first direction X in the figure may be a ring or a rectangle, etc., and this embodiment does not impose too many restrictions on this.

[0060] It can be understood that the “top” and “bottom” in the top wall 11 and the bottom wall 12 of the present embodiment refer to the orientation of the reaction vessel 10 during the reaction, and do not mean that the top wall 11 is always located above the bottom wall 12. For example, when the reaction vessel 10 is being produced or transported, the top wall 11 may be flush with the bottom wall 12 or located below the bottom wall 12.

[0061] The top wall 11, bottom wall 12 and side wall 13 of the present embodiment may be connected by integral molding during processing, or by welding, bolt connection, etc., as long as the connection strength between the side wall 13 and the top wall 11 and bottom wall 12 can be maintained.

[0062] The reaction vessel 10 is provided with a powder inlet 15, a gas inlet 16, a powder outlet 17, a gas outlet 18, a heating inlet 19 and a heating outlet 110. The powder inlet 15 is used to add powder, and the gas inlet 16 is used to add reaction gas. The powder may include a catalyst, an adsorbent or other solid reactants, and the reaction gas may include nitrogen, oxygen or carbon dioxide, etc. In the production and processing of the battery, the powder may be an electrode or electrolyte material such as a metal salt or an organic matter, and the reaction gas may be oxygen or hydrogen, etc.

[0063] The powder outlet 17 is used to discharge the powder after the reaction, the gas outlet 18 is used to discharge the gas after the reaction, the heating inlet 19 is used for heating, and the heating method can be to introduce hot gas that does not participate in the reaction. The heating outlet 110 is used to discharge the hot gas to release heat.

[0064] The loading component 20 is configured to introduce the powder in the reaction chamber 14 from the feed port 211 and discharge it to the reaction chamber 14 from the discharge port 212, that is, the loading component 20 can introduce the powder accumulated on the bottom wall 12 into itself, and then discharge it through its own discharge port 212 to the working area of ​​the breaking component 30 for breaking. The powder in the reaction chamber 14 is transported to the breaking component 30 for breaking by the loading component 20, which reduces the possibility of powder agglomeration, allows the powder to fully contact with the reaction gas, and improves the reaction efficiency.

[0065] In some examples, optionally, the loading assembly 20 includes a loading barrel 21, a conveying mechanism 22 and a driving member 23. The loading barrel 21 is provided with a feed port 211 and a discharge port 212. The conveying mechanism 22 is passed through the loading barrel 21. The conveying mechanism 22 is used to introduce the powder into the loading barrel 21 from the feed port 211 and discharge it from the discharge port 212. The driving member 23 is installed on the reaction container 10 and is connected to the conveying mechanism 22.

[0066] The upper barrel 21 is a cylindrical structure with both ends open along the second direction Y in the figure. The opening at the upper end is the discharge port 212, and the opening at the lower end is the feed port 211. There is a gap between the feed port 211 and the bottom wall 12, and there is a gap between the discharge port 212 and the top wall 11.

[0067] The conveying mechanism 22 is located in the upper barrel 21, and the conveying mechanism 22 is connected to the driving member 23. The driving member 23 drives the conveying mechanism 22 to realize the conveying of the powder. The driving member 23 can be located outside the reaction container 10. The driving member 23 can be as follows: Figure 1 As shown in FIG. 1 , the drive member 23 is mounted on the top wall 11 , or the drive member 23 may be mounted on the bottom wall 12 (this embodiment is not shown in the figure).

[0068] The feeding assembly 20 is designed to include a feeding barrel 21, a conveying mechanism 22 and a driving member 23. The feeding barrel 21 defines a conveying space for the powder, and the driving member 23 drives the conveying mechanism 22 to move, thereby driving the powder in the feeding barrel 21 to move toward the discharge port 212.

[0069] There are various structural forms of the conveying mechanism 22 and the driving member 23. For example, the driving member 23 can be an air pump that outputs air pressure, and the conveying mechanism 22 can be a conveying pipeline, etc. For another example, the driving member 23 can be a lifting drive structure, and the conveying mechanism 22 can be a hopper connected to the lifting drive structure (the above two embodiments are not shown in the figure).

[0070] In some examples, optionally, the conveying mechanism 22 includes a conveying shaft 221 and a spiral conveying piece 222, the conveying shaft 221 includes a first end 2211 and a second end 2212 in opposite directions, the first end 2211 is connected to the bottom wall 12 in a manner that can rotate around its own axis, the spiral conveying piece 222 is connected to the conveying shaft 221, and the spiral conveying piece 222 extends from the first end 2211 along the axial direction of the conveying shaft 221 to between the discharge port 212 and the scattering component 30.

[0071] The conveying shaft 221, the spiral conveying sheet 222 and the loading barrel 21 form a spiral conveying structure, and the loading barrel 21, the spiral conveying sheet 222 and the conveying shaft 221 form a spiral conveying trough. The rotation of the conveying shaft 221 and the spiral conveying sheet 222 is used to drive the powder in the spiral conveying trough to move from the feed port 211 to the discharge port 212, which has the advantages of simple structure and stable conveying.

[0072] The upper end of the conveying shaft 221 is connected to the driving member 23, and the lower end of the conveying shaft 221 is connected to the bottom wall 12 in a manner that it can rotate around its own axis. In some embodiments, a bearing 121 and a bearing seat 122 can be configured on the bottom wall 12, the bearing seat 122 is installed on the bottom wall 12, the bearing 121 is installed on the bearing seat 122, and the lower end of the conveying shaft 221 is installed on the bearing 121 to improve the rotation stability of the conveying shaft 221.

[0073] The lower end of the spiral conveying piece 222 is located between the upper barrel 21 and the bottom wall 12, so that it can drive the powder on the bottom wall 12 to move upward. The upper end of the spiral conveying piece 222 is located between the discharge port 212 and the scattering component 30, and it may not extend to the end where the conveying shaft 221 is connected to the driving member 23, as long as the powder output from the discharge port 212 can reach the scattering component 30.

[0074] Combined with Figure 1 and attached Figure 2 As shown, in some examples, optionally, the breaking up assembly 30 is connected to the conveying shaft 221 and rotates synchronously with the conveying shaft 221 .

[0075] The breaking up of the breaking up component 30 can be achieved by rotation. Therefore, it is necessary to configure a power source for the breaking up component 30. However, this will undoubtedly increase the production cost of the gas-solid reactor and increase the complexity of its structure.

[0076] Therefore, in this embodiment, the breaking up component 30 is connected to the conveying shaft 221 and rotates synchronously. The rotation of the conveying shaft 221 during the powder conveying process is used to drive the breaking up component 30 to perform the breaking up action. This not only realizes the integrated multi-purpose use of the conveying shaft 221, but also eliminates the need to configure an additional driving structure for the breaking up component 30. This can simplify the structure of the gas-solid reaction device 100 and reduce its production cost.

[0077] In some examples, optionally, the disintegration assembly 30 includes a plurality of disintegration pieces 31 , and the plurality of disintegration pieces 31 are all connected to the conveying shaft 221 and are arranged at intervals along the circumference of the conveying shaft 221 .

[0078] The plurality of dispersing pieces 31 are arranged at intervals along the circumferential direction of the outer surface of the conveying shaft 221 . In some embodiments, the plurality of dispersing pieces 31 may be arranged at even intervals to improve uniformity during dispersing.

[0079] The disassembled parts 31 can be made of metal materials such as carbon steel, alloy steel, etc., which have certain structural strength and are resistant to high temperature and high pressure.

[0080] When performing the dispersing operation, the plurality of dispersing members 31 rotate to collide with the powder, thereby dispersing the powder that has been aggregated and tangled. The structure is simple and effective.

[0081] In some examples, optionally, the disintegrating piece 31 includes a third end 311 and a fourth end 312 which are opposite to each other, the third end 311 is connected to the conveying shaft 221 , and the fourth end 312 is located between the side wall 13 and the upper barrel 21 .

[0082] When the gas-solid reaction device is reacting, the third end 311 is the upper end of the broken piece 31, and the third end 311 is connected and fixed to the conveying shaft 221, and the connection method can be welding, bolt connection, etc. The fourth end 312 is the lower end of the broken piece 31, and it is also the free end of the broken piece 31. There is a gap between the fourth end 312 and the side wall 13 to avoid mutual wear between the broken piece 31 and the side wall 13 when rotating.

[0083] The third end 311 needs to be set above the discharge port 212 to enable the scattering pieces 31 to rotate with the conveying shaft 221. The fourth end 312 is located between the side wall 13 and the upper barrel 21. The fourth end 312 can be located below the discharge port 212, so that the scattering pieces 31 gradually tilt toward the bottom wall 12 from the inside to the outside, thereby expanding the scattering area of ​​the scattering pieces 31, so that the scattering pieces 31 can better scatter the powder discharged from the discharge port 212.

[0084] Combined with the attachment again Figure 2 As shown, in some examples, optionally, along the direction from the third end 311 to the fourth end 312 , a plurality of teeth 313 are dispersedly provided on a side of the breaking piece 31 facing the bottom wall 12 .

[0085] The teeth 313 may refer to a protruding structure on the side of the disintegrating piece 31 facing the bottom wall 12, and a plurality of teeth 313 may be arranged adjacent to each other or arranged at intervals. The teeth 313 may be in the form of a sheet or a block, etc., and this embodiment does not impose too many restrictions on this. The arrangement of the teeth 313 may increase the contact area between the disintegrating piece 31 and the powder, and improve the efficiency of the disintegrating piece 31 in disintegrating the powder.

[0086] Of course, a plurality of teeth 313 may be provided on the side of the scattering piece 31 away from the bottom wall 12 , or teeth 313 may be provided at other positions of the scattering piece 31 , so as to further improve the efficiency of the scattering piece 31 in scattering the powder.

[0087] In some examples, optionally, an end of the upper barrel 21 close to the bottom wall 12 is provided with a flared section 213, and the feed port 211 is located at an end of the flared section 213 close to the bottom wall 12.

[0088] The flared section 213 refers to a flared structure at the lower end of the upper barrel 21, and the flared section 213 has a length dimension along the second direction Y and a width dimension in the first direction X. The dimension of the flared structure in the first direction X is greater than the dimension of the remaining part of the upper barrel 21 in the first direction X. The first direction X intersects with the arrangement direction of the top wall 11 to the bottom wall 12. In some embodiments, the first direction X can be any direction perpendicular to the arrangement direction of the top wall 11 to the bottom wall 12.

[0089] The expanded section 213 enables the lower end of the upper barrel 21 to have a larger size, thereby enabling the feed port 211 to have a larger size, which can facilitate the powder to enter the upper barrel 21 through the feed port 211 .

[0090] In some examples, optionally, from the top wall 11 to the bottom wall 12 , the size of the expansion section 213 in the first direction X gradually increases, and the first direction X is an arrangement direction intersecting the top wall 11 to the bottom wall 12 .

[0091] The size of the expanding section 213 in the first direction X gradually increases from one end of the expanding section 213 away from the bottom wall 12 to the other end close to the bottom wall 12, so that the expanding section 213 forms a structure approximately in the shape of a cone, which can gradually gather at the powder inlet, thereby facilitating upward transportation through the spiral conveying trough.

[0092] Combined with Figure 1 and attached Figure 3 As shown, in some examples, optionally, the gas-solid reaction device 100 further includes a distribution member 40 located between the scattering assembly 30 and the bottom wall 12 , the distribution member 40 is disposed around the loading assembly 20 , and the distribution member 40 is provided with a plurality of discharge holes 43 .

[0093] The material of the distribution piece 40 can be the same as or similar to the aforementioned dispersing piece 31 . The distribution piece 40 has a first surface 41 and a second surface 42 opposite to each other along the second direction Y. The first surface 41 is arranged facing the bottom wall 12 , and the discharge hole 43 passes through the first surface 41 and the second surface 42 .

[0094] The powder dispersed by the dispersing member 31 falls to the first surface 41 under the action of gravity to be received, and then discharged through the discharge hole 43 on the distribution member 40. When the powder falls onto the first surface 41, it can be subjected to a certain impact and beating, thereby increasing the contact area with the reaction gas, and also reducing the possibility of the dispersed powder agglomerating and knotting again during the falling process, thereby further improving the reaction efficiency.

[0095] In some examples, optionally, from a side of the distribution member 40 close to the loading assembly 20 to a side away from the loading assembly 20 , a surface of the distribution member 40 facing the top wall 11 is gradually disposed away from the top wall 11 .

[0096] This structure makes the distribution member 40 form a shape similar to a cone, and the first surface 41 of the distribution member 40 forms an inclined surface for the powder to slide down, so that the powder can be evenly distributed on the distribution member 40 and return to the bottom wall 12 again through the discharge hole 43, which can increase the contact area between the powder and the reaction gas and further improve the reaction efficiency.

[0097] In some examples, optionally, multiple rows of discharge holes 43 are provided from the side of the distribution member 40 close to the loading assembly 20 to the side away from the loading assembly 20 , and each row includes multiple discharge holes 43 arranged around the loading assembly 20 and the side wall 13 .

[0098] There are multiple rows of discharge holes 43, and each row is provided with multiple discharge holes 43 surrounding the loading assembly 20 and the side wall 13, so as to improve the discharge efficiency of the powder after being distributed on the distribution member 40, so that the powder can fall to the bottom wall 12 faster, so as to facilitate the discharge or secondary breaking and distribution of the powder.

[0099] Secondary dispersing and distribution refers to the powder entering through the feed port 211 being processed by the dispersing piece 31 and then falling into the distribution piece 40, and then returning to the dispersing piece 31 through the feeding assembly 20 for dispersing and distribution. Secondary dispersing and distribution can effectively reduce the possibility of powder agglomeration and improve reaction efficiency.

[0100] Combined with the attachment again Figure 1 As shown, in some examples, optionally, a tapered section 131 is provided at one end of the side wall 13 close to the bottom wall 12, and a size of the tapered section 131 in a first direction X gradually decreases along the direction from the top wall 11 to the bottom wall, and the first direction X is the arrangement direction of the top wall 11 to the bottom wall 12.

[0101] The tapered section 131 refers to a region of the side wall 13 close to the bottom wall 12 having a tapered structure. The tapered section 131 has a length dimension along the second direction Y and a width dimension along the first direction X. The dimension of the tapered structure in the first direction X is smaller than the dimension of the rest of the side wall 13 in the first direction. The tapered section 131 can form an inverted cone-shaped structure or a structure that is approximately inverted cone-shaped.

[0102] The constricted section 131 allows the powder to accumulate quickly near the bottom of the side wall 13 so that the powder can enter the feed port 211 more quickly, thereby allowing the loading assembly 20 to transport the powder near the feed port 211 to the discharge port 212 for dispersion more quickly.

[0103] In some examples, optionally, the top wall 11 is provided with a powder inlet 15 .

[0104] The top wall 11 is provided with a powder inlet 15, and the powder inlet 15 and the feed port 211 can be staggered in the first direction X, so that the powder entering the reaction chamber 14 through the powder inlet 15 can directly rush to the scattering component 31, and is directly scattering through the scattering component 30, and then evenly discharged through the distribution component 40, which can further reduce the possibility of powder knotting, and at the same time can increase the contact time and area between the powder and the gas, thereby improving the reaction efficiency.

[0105] Finally, please combine the attached Figure 1-3As shown, an embodiment of the present application provides a gas-solid reaction device 100, including a reaction vessel 10, a feeding assembly 20 and a breaking up assembly 30, the reaction vessel 10 includes a top wall 11, a bottom wall 12 and a side wall 13 connected between the top wall 11 and the bottom wall 12, the top wall 11, the bottom wall 12 and the side wall 13 form a reaction chamber 14; the feeding assembly 20 is located in the reaction chamber 14, the feeding assembly 20 is provided with a feed port 211 facing the bottom wall 12 and a discharge port 212 facing the top wall 11, the feeding assembly 20 is configured to introduce the powder in the reaction chamber 14 from the feed port 211 into the feeding assembly 20 and discharge it back to the reaction chamber 14 through the discharge port 212; the breaking up assembly 30 is located between the discharge port 212 and the top wall 11, and is used to break up the powder discharged from the discharge port 212. The feeding assembly 20 includes a feeding barrel 21, a conveying mechanism 22 and a driving member 23. The feeding barrel 21 is provided with a feeding port 211 and a discharging port 212. The conveying mechanism 22 is arranged in the feeding barrel 21. The conveying mechanism 22 is used to introduce the powder into the feeding barrel 21 from the feeding port 211 and discharge it from the discharging port 212. The driving member 23 is installed on the reaction container 10 and connected with the conveying mechanism 22. The conveying mechanism 22 includes a conveying shaft 221 and a spiral conveying piece 222. The conveying shaft 221 includes a first end 2211 and a second end 2212 opposite to each other. The first end 2211 is connected to the bottom wall 12 in a manner that it can rotate around its own axis. The spiral conveying piece 222 is connected to the conveying shaft 221, and the spiral conveying piece 222 extends from the first end 2211 along the axial direction of the conveying shaft 221 to between the discharging port 212 and the scattering assembly 30. The scattering assembly 30 is connected to the conveying shaft 221 and rotates synchronously with the conveying shaft 221. The disintegration assembly 30 includes a plurality of disintegration pieces 31, and the plurality of disintegration pieces 31 are all connected to the conveying shaft 221 and are arranged at intervals along the circumference of the conveying shaft 221. The disintegration pieces 31 include opposite third ends 311 and fourth ends 312, the third end 311 is connected to the conveying shaft 221, and the fourth end 312 is located between the side wall 13 and the upper barrel 21. From the third end 311 to the fourth end 312, a plurality of teeth 313 are dispersedly provided on the side of the disintegration piece 31 facing the bottom wall 12. An expansion section 213 is provided at one end of the upper barrel 21 close to the bottom wall 12, and the feed port 211 is located at one end of the expansion section 213 close to the bottom wall 12. From the end of the expansion section 213 away from the bottom wall 12 to the end close to the bottom wall 12, the size of the expansion section 213 in the first direction X gradually increases, and the first direction X intersects with the arrangement direction from the top wall 11 to the bottom wall 12. The gas-solid reaction device 100 further includes a distribution member 40 located between the scattering assembly 30 and the bottom wall 12. The distribution member 40 is disposed around the loading assembly 20, and the distribution member 40 is provided with a plurality of discharge holes 43. From the side of the distribution member 40 close to the loading assembly 20 to the side away from the loading assembly 20, the surface of the distribution member 40 facing the top wall 11 is gradually disposed away from the top wall 11.From the side of the distribution member 40 close to the loading assembly 20 to the side away from the loading assembly 20, multiple rows of discharge holes 43 are provided, and each row includes multiple discharge holes 43 arranged around the loading assembly 20 and the side wall 13. A constriction section 131 is provided at one end of the side wall 13 close to the bottom wall 12, and the size of the constriction section 131 in the first direction X gradually decreases along the direction from the top wall 11 to the bottom wall 12, and the first direction X intersects with the arrangement direction of the top wall 11 to the bottom wall 12. The top wall 11 is provided with a powder inlet 15.

[0106] In a second aspect, an embodiment of the present application provides a battery production system, including a gas-solid reaction device 100 as described in the above technical solution.

[0107] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0108] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein, but these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A gas-solid reaction device, characterized in that: include: A reaction container, comprising a top wall, a bottom wall and a side wall connected between the top wall and the bottom wall, wherein the top wall, the bottom wall and the side wall form a reaction chamber; A feeding assembly is located in the reaction chamber, the feeding assembly is provided with a feeding port facing the bottom wall and a discharging port facing the top wall, and the feeding assembly is configured to introduce the powder in the reaction chamber into the feeding assembly through the feeding port and discharge it back to the reaction chamber through the discharging port; as well as The breaking up component is located between the discharge port and the top wall and is used for breaking up the powder discharged from the discharge port.

2. The gas-solid reaction device according to claim 1, characterized in that: The feeding assembly includes a feeding barrel, a conveying mechanism and a driving member. The feeding barrel is provided with the feeding port and the discharging port. The conveying mechanism is passed through the feeding barrel. The conveying mechanism is used to introduce the powder into the feeding barrel from the feeding port and discharge it from the discharging port. The driving member is installed on the reaction container and connected to the conveying mechanism.

3. The gas-solid reaction device according to claim 2, characterized in that: The conveying mechanism includes a conveying shaft and a spiral conveying piece, the conveying shaft includes a first end and a second end opposite to each other, the first end is connected to the bottom wall in a manner that can rotate around its own axis, the spiral conveying piece is connected to the conveying shaft, and the spiral conveying piece extends from the first end along the axial direction of the conveying shaft to between the discharge port and the disintegration component.

4. The gas-solid reaction device according to claim 3, characterized in that: The breaking up assembly is connected to the conveying shaft and rotates synchronously with the conveying shaft.

5. The gas-solid reaction device according to claim 4, characterized in that: The dispersing assembly comprises a plurality of dispersing parts, and the plurality of dispersing parts are all connected to the conveying shaft and are arranged at intervals along the circumference of the conveying shaft.

6. The gas-solid reaction device according to claim 5, characterized in that: The disintegrating piece includes a third end and a fourth end which are opposite to each other, wherein the third end is connected to the conveying shaft, and the fourth end is located between the side wall and the loading barrel.

7. The gas-solid reaction device according to claim 6, characterized in that: Along the third end to the fourth end, a plurality of teeth are dispersedly provided on a side of the disintegrating piece facing the bottom wall.

8. The gas-solid reaction device according to claim 2, characterized in that: An end of the upper barrel close to the bottom wall is provided with a flared section, and the feed port is located at an end of the flared section close to the bottom wall.

9. The gas-solid reaction device according to claim 8, characterized in that: From the top wall to the bottom wall, the size of the expansion section in a first direction gradually increases, and the first direction intersects with the arrangement direction from the top wall to the bottom wall.

10. The gas-solid reaction device according to any one of claims 1 to 9, characterized in that: The gas-solid reaction device further comprises a distribution member located between the scattering assembly and the bottom wall, the distribution member is arranged around the feeding assembly, and the distribution member is provided with a plurality of feeding holes.

11. The gas-solid reaction device according to claim 10, characterized in that: From a side of the distribution piece close to the loading assembly to a side away from the loading assembly, a surface of the distribution piece facing the top wall is gradually arranged away from the top wall.

12. The gas-solid reaction device according to claim 10, characterized in that: From the side of the distribution member close to the loading assembly to the side away from the loading assembly, the discharge holes are arranged in a plurality of rows, and each row includes a plurality of the discharge holes arranged around the loading assembly and the side wall.

13. The gas-solid reaction device according to any one of claims 1 to 9, characterized in that: A necking section is provided at one end of the side wall close to the bottom wall. Along the direction from the top wall to the bottom wall, the size of the necking section in a first direction gradually decreases, and the first direction intersects with the arrangement direction from the top wall to the bottom wall.

14. The gas-solid reaction device according to any one of claims 1 to 9, characterized in that: The top wall is provided with a powder inlet.

15. A battery production system, characterized in that: It comprises a gas-solid reaction device as described in any one of claims 1 to 14.

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