Lithium ion battery material synthesis rotary kiln device
By using a rotary kiln device in the high-temperature synthesis of the positive electrode material of lithium-ion battery, a resistance furnace and high-temperature alloy pipe are used to achieve uniform high-temperature treatment of the materials, the problems of low production efficiency, high cost and unstable quality caused by push plate kilns or roller kilns are solved, and efficient and stable production results are achieved.
Patent Information
- Application Number
- CN202421348624.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-13
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-06-13
AI Technical Summary
In the high-temperature synthesis of lithium-ion battery positive electrode materials, the use of push plate kilns or roller kilns leads to low production efficiency, high cost, unstable quality, and the casing is easy to fall off, has a short life, is difficult to seal, and consumes a lot of gas.
The rotary kiln device of lithium-ion battery material is used to synthesize the rotary kiln device, including the resistive furnace body and high-temperature alloy tube. The furnace tube drive device is used to rotate the high-temperature alloy tube regularly, and combined with the hoisting mechanism and dynamic sealing components to achieve uniform heat and turn the material in a high-temperature environment, improving product consistency.
It improves the uniformity and quality stability of lithium-ion battery materials, extends the service life of the furnace tube, reduces production costs, saves gas usage, and achieves efficient production.
Smart Images
Figure CN222812134U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lithium ion battery material synthesis, in particular to a lithium ion battery material synthesis rotary kiln device. Background Art
[0002] This section is intended to provide background or context for the embodiments of the utility model set forth in the claims. The descriptions herein may include concepts that may be explored, but not necessarily concepts that have been previously thought of or explored. Therefore, unless otherwise noted herein, the content described in this section is not prior art with respect to the specification and claims of this application, and is not admitted to be prior art by inclusion in this section.
[0003] The commonly used equipment for high-temperature synthesis of positive electrode materials for lithium-ion batteries is a push-plate kiln or a roller kiln, which requires the use of a sagger. The sagger is usually easy to fall off, peel and slag, so it is easy to mix with other impurities during the heating process, resulting in low production efficiency. Repeated use leads to a short life of the sagger, which needs to be purchased again and has high production costs due to frequent replacement. In addition, the temperature of the sagger furnace cavity is uneven, and the synthetic material is not heated consistently, so it is easy to produce waste, resulting in low production efficiency and high costs, poor product consistency and unstable quality. When special gas protection is required, the sagger is not easy to seal and consumes a lot of gas, which further leads to high production costs.
[0004] Therefore, in the high-temperature synthesis process of positive electrode materials for lithium-ion batteries, when a pusher kiln or a roller kiln is used, the above-mentioned problems of low production efficiency, high cost and unstable quality occur. Utility Model Content
[0005] In order to solve the above technical problems, the purpose of the utility model is to provide a lithium ion battery material synthesis rotary kiln device.
[0006] A lithium-ion battery material synthesis rotary kiln device, comprising:
[0007] Base frame (1), lifting mechanism (2), furnace base (3), resistance furnace body (6);
[0008] The resistance furnace body (6) is placed on the furnace base (3), and the lifting mechanism (2) is provided between the furnace base (3) and the base frame (1). Under the action of the lifting mechanism (2), the resistance furnace body (6) maintains a certain angle with the base frame (1), and the lifting mechanism (2) is used to adjust the lifting angle of the resistance furnace body (6);
[0009] The furnace tube driving device (7) is located at one end of the resistance furnace body (6), and the furnace tube driving device (7) drives the high-temperature alloy tube (64) in the resistance furnace body (6) to rotate regularly;
[0010] The resistance furnace body (6) comprises a heat-insulating heating component (65) and a high-temperature alloy tube (64); the heat-insulating heating component (65) wraps the high-temperature alloy tube (64); the lithium-ion battery material is located in the high-temperature alloy tube (64), so that the lithium-ion battery material located in the resistance furnace body (6) has a high-temperature environment.
[0011] In some embodiments, the two ends of the resistance furnace body (6) respectively have an air inlet (61) and an exhaust port (62), and gas passes through the air inlet (61) and the exhaust port (62), so that a closed environment is formed inside the resistance furnace body (6).
[0012] In some embodiments, the lithium-ion battery material synthesis rotary kiln device further comprises: a butterfly valve (63), located on the high end side of the resistance furnace body (6), controlling the opening of the feed of the lithium-ion battery material synthesis rotary kiln device, and / or, cooperating with the resistance furnace body (6) to form a closed environment.
[0013] In some embodiments, a feeding component (4) is further included, and a first dynamic sealing component (9) is provided between the feeding component (4) and the high-temperature alloy tube (64). When the high-temperature alloy tube (64) rotates, the feeding component (4) does not rotate.
[0014] In some embodiments, the first dynamic sealing component (9) includes a spring (91), a dynamic sealing ring (92), and a static sealing ring (93);
[0015] The spring (91) is located between the dynamic seal ring (92) and the static seal ring (93), and the dynamic seal ring (92) and the static seal ring (93) are respectively located at one end of the feeding component (4) and the resistance furnace body (6).
[0016] In some embodiments, the device further comprises: a discharge component, the discharge component having a second dynamic sealing component and a discharge port (8), the discharge port (8) being located at the lower end side of the lithium-ion battery material synthesis rotary kiln device, with the open end facing downward; the second dynamic sealing component being located between the discharge component and the resistance furnace body (6).
[0017] In some embodiments, the angle between the resistance furnace body (6) and the base frame (1) is 10 degrees to 35 degrees.
[0018] In some embodiments, the heat-insulating and heating component (65) comprises heat-insulating materials and heating materials, and is not in direct contact with the high-temperature alloy tube (64).
[0019] In some embodiments, the interior of the resistance furnace body (6) is filled with protective gas through the air inlet (61) and the exhaust port (62).
[0020] In some embodiments, the butterfly valve (63) is in a closed state, and a vacuum is drawn using the air inlet (61) and the exhaust port (62) of the resistance furnace body (6), and the high-temperature alloy tube (64) remains in a vacuum state.
[0021] The above technical solution of the utility model has at least the following beneficial technical effects:
[0022] The angle of the resistance furnace body 6 of the lithium-ion battery material synthesis rotary kiln device of the utility model can be tilted and the tilt angle can be adjusted. During synthesis, the high-temperature alloy tube 64 in the resistance furnace body rotates at a control angle. Under the rotation of the furnace tube and the action of gravity, the lithium-ion battery material undergoes a high-temperature reaction while turning over, and moves downward along the furnace tube to the discharge port, thereby improving the uniformity of the battery material; the feed component is connected through the dynamic sealing component 9, so that the feed component does not rotate, while the high-temperature alloy tube 64 can rotate. Similarly, the discharge port can also achieve the effect that the high-temperature alloy tube 64 rotates while the discharge port does not need to rotate through the dynamic sealing component. The high-temperature alloy tube 64 of the utility model uses a high-temperature resistant alloy material, the furnace tube has a long service life, can be continuously recycled, and avoids the scrapping of a large number of saggers of push plate kilns and roller kilns. The utility model can also introduce protective gas during high-temperature synthesis, has good airtightness, can save gas usage, and can also use the air inlet and exhaust port to evacuate the inside of the resistance furnace tube to meet different needs. During the synthesis process, the material is constantly tumbling, and the heating is uniform, so that the product performance is consistent. In summary, the utility model can achieve the effects of efficient production, cost reduction and uniform performance. The utility model has a simple structure, and the rotary kiln port is sealed with good sealing effect. Protective gas can be introduced to improve the efficiency of production operations and reduce production costs. The utility model can be used not only for the production of positive electrode materials such as lithium iron phosphate, lithium cobalt oxide, ternary materials, lithium manganese oxide, but also for heat treatment during the recycling process of these materials. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the conventional technology, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0024] Figure 1 It is a schematic diagram of a lithium-ion battery material synthesis rotary kiln device provided in an embodiment of the utility model.
[0025] Figure 2 It is a schematic front view of a lithium-ion battery material synthesis rotary kiln device provided by an embodiment of the utility model.
[0026] Figure 3 yes Figure 2 Middle BB section.
[0027] Figure 4 It is a partially enlarged schematic diagram of a lithium-ion battery material synthesis rotary kiln device provided in an embodiment of the utility model.
[0028] in, Figures 1 to 4 The corresponding relationship between the reference numerals and component names in the figure is:
[0029] 1- bottom frame, 2- lifting mechanism, 3- furnace base, 4- feeding parts;
[0030] 6- resistance furnace body, 7- furnace tube driving device, 8- discharge port;
[0031] 9-first dynamic sealing component;
[0032] 61-air inlet, 62-exhaust port, 63-butterfly valve, 64-high temperature alloy tube, 65-insulation and heating component;
[0033] 91-spring, 92-dynamic sealing ring, 93-static sealing ring. DETAILED DESCRIPTION
[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0035] Furthermore, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention.
[0036] If there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features; the technical solutions between the various embodiments can be combined with each other, based on the ability of ordinary technicians in the field to implement.
[0037] In the embodiments of the present application, when A and / or B are mentioned, it means A, B, and A and B.
[0038] In the description of the embodiments of the present application, it should be understood that the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more. In addition, the term "includes" and any variation thereof are intended to cover non-exclusive inclusions.
[0040] The accompanying drawings show schematic diagrams of layer structures according to embodiments of the present invention. These figures are not drawn to scale, and some details are magnified and some details may be omitted for the purpose of clarity. The shapes of various regions and layers shown in the figures and the relative sizes and positional relationships therebetween are only exemplary, and may deviate in practice due to manufacturing tolerances or technical limitations, and those skilled in the art may additionally design regions / layers with different shapes, sizes, and relative positions according to actual needs.
[0041] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0042] At present, the commonly used devices for high-temperature synthesis of positive electrode materials for lithium-ion batteries in the existing technology are push-plate kilns or roller kilns, which are prone to produce waste, resulting in low production efficiency and high costs, poor product consistency and unstable quality. When special gas protection is required, the sagger is not easy to seal and the gas consumption is large, which further leads to high production costs.
[0043] In order to solve the above technical problems, an embodiment of the present utility model provides a lithium ion battery material synthesis rotary kiln device, comprising:
[0044] Base frame 1, lifting mechanism 2, furnace base 3, resistance furnace body 6;
[0045] The resistance furnace body 6 is placed on the furnace base 3, and the lifting mechanism 2 is provided between the furnace base 3 and the base frame 1. The resistance furnace body 6 maintains a certain angle with the base frame 1 under the action of the lifting mechanism 2, and the lifting mechanism 2 is used to adjust the lifting angle of the resistance furnace body 6;
[0046] The furnace tube driving device 7 is located at one end of the resistance furnace body 6, and the furnace tube driving device 7 drives the high temperature alloy tube 64 in the resistance furnace body 6 to rotate regularly;
[0047] The resistance furnace body 6 includes a heat preservation and heating component 65 and a high-temperature alloy tube 64. The heat preservation and heating component 65 wraps the high-temperature alloy tube 64. The lithium-ion battery material is located in the high-temperature alloy tube 64, so that the lithium-ion battery material located in the resistance furnace body 6 has a high-temperature environment.
[0048] The resistance furnace body 6 of the utility model lithium ion battery material synthesis rotary kiln device can be tilted and the tilt angle can be adjusted. During synthesis, the high-temperature alloy tube 64 rotates at a control angle. Under the rotation of the furnace tube and the action of gravity, the lithium ion battery material undergoes a high-temperature reaction while turning over, and moves downward along the furnace tube to the discharge port, thereby ensuring the uniformity of the lithium ion battery material. The feed component is connected through the dynamic sealing component 9, so that the feed component does not rotate, while the high-temperature alloy tube 64 can rotate. Similarly, the discharge port is connected through the dynamic sealing component, so that the high-temperature alloy tube 64 can be connected without rotating the discharge port. The high-temperature alloy tube 64 of the utility model uses a high-temperature resistant alloy material, and the furnace tube has a long service life and can be continuously recycled, thereby avoiding the scrapping of a large number of saggers of push plate kilns and roller kilns. The utility model can also introduce protective gas during high-temperature synthesis, has good airtightness, can save gas usage, and can also use the air inlet and exhaust port to evacuate the inside of the resistance furnace tube to meet different needs. During the synthesis process, the material keeps rolling, and the heating uniformity is good, so that the product performance consistency is good. In summary, the utility model can achieve the effects of efficient production, cost reduction and uniform performance. The utility model has a simple structure, seals the rotary kiln port, has a good sealing effect, can be introduced with protective gas, improves the efficiency of production operations and reduces production costs. The utility model can be used not only for the production of positive electrode materials such as lithium iron phosphate, lithium cobalt oxide, ternary materials, lithium manganese oxide, but also for heat treatment in the recycling process of these materials.
[0049] Optionally, as one embodiment, both ends of the resistance furnace body 6 respectively have an air inlet 61 and an exhaust port 62 , and gas passes through the air inlet 61 and the exhaust port 62 , so that a closed environment is formed inside the resistance furnace body 6 .
[0050] In actual use, the air inlet 61 and the air outlet 62 can be interchangeable and can be adjusted according to actual conditions.
[0051] Optionally, as one embodiment, the lithium-ion battery material synthesis rotary kiln device also includes: a butterfly valve 63, located on the high end side of the resistance furnace body 6, controlling the opening of the feed of the lithium-ion battery material synthesis rotary kiln device, and cooperating with the resistance furnace body 6 to form a closed environment.
[0052] Optionally, as one embodiment, it further includes a feeding component 4, and a first dynamic sealing component 9 is provided between the feeding component 4 and the high-temperature alloy tube 64. When the high-temperature alloy tube 64 rotates, the feeding component 4 does not rotate.
[0053] Optionally, as one embodiment, the first dynamic sealing component 9 includes a spring 91, a dynamic sealing ring 92, and a static sealing ring 93;
[0054] The spring 91 is located between the dynamic seal ring 92 and the static seal ring 93 , and the dynamic seal ring 92 and the static seal ring 93 are respectively located at one end of the feeding component 4 and the resistance furnace body 6 .
[0055] Optionally, as one embodiment, the device also includes: a discharging component, the discharging component has a second dynamic sealing component and a discharging port 8, the discharging port 8 is located on the lower end side of the lithium-ion battery material synthesis rotary kiln device, and the opening end is downward; the second dynamic sealing component is located between the discharging component and the resistance furnace body 6.
[0056] Optionally, as one embodiment, the angle between the resistance furnace body 6 and the base frame 1 is 10 degrees to 35 degrees.
[0057] Optionally, as one embodiment, the thermal insulation and heating component 65 has a thermal insulation material and a heating material, and the thermal insulation and heating component 65 is not in direct contact with the high-temperature alloy tube 64 .
[0058] Optionally, as one embodiment, the interior of the resistance furnace body 6 is filled with protective gas through the air inlet 61 and the exhaust port 62 .
[0059] Optionally, as one embodiment, the butterfly valve 63 is in a closed state, and a vacuum is drawn using the air inlet 61 and the exhaust port 62 of the resistance furnace body 6, and the high-temperature alloy tube 64 is kept in a vacuum state.
[0060] Specifically, the furnace tube driving device (7) is a gear, which drives the high-temperature alloy tube (64) to rotate under the drive of the motor.
[0061] See also Figure 1-4 As shown, Figure 1This is a schematic axonometric diagram of a lithium-ion battery material synthesis rotary kiln device provided by an embodiment of the utility model. Figure 2 This is a schematic front view of a lithium-ion battery material synthesis rotary kiln device provided by an embodiment of the utility model. Figure 3 This is a schematic cross-sectional view of a lithium-ion battery material synthesis rotary kiln device provided by the embodiment of the utility model, and the cross-sectional position is Figure 2 The cross-sectional view obtained from the BB direction of the center front view, Figure 4 This is a partial enlarged schematic diagram of a lithium-ion battery material synthesis rotary kiln device provided by the embodiment of the utility model, and the enlarged position is Figure 3 An enlarged schematic diagram of part 9.
[0062] Taking the direction shown in the figure as an example, the furnace base 3 is placed on the base frame 1, the left side of the lower end of the base frame 1 is connected to the jacking mechanism 2, and the right side of the lower end has a rotating mechanism. The jacking mechanism 2 can lift the furnace base 3 to tilt the resistance furnace body 6.
[0063] The lithium-ion battery material synthesis rotary kiln device comprises a resistance furnace body 6, the left end of the resistance furnace body 6 is provided with a furnace tube driving device 7, and the right end of the resistance furnace body 6 may be provided with a furnace tube follower device, which rotates under the furnace tube driving device 7. When synthesis is required, the furnace tube driving device 7 drives the high-temperature alloy tube 64 to rotate. When the furnace body is tilted, the furnace tube driving device 7 drives the high-temperature alloy tube 64 to rotate, and the material slowly passes through the high-temperature alloy tube 64 from top to bottom. Under high temperature conditions, a high-temperature reaction occurs, and the material is constantly turned in the high-temperature alloy tube 64, so that the material is heated more evenly.
[0064] by Figure 1 Taking the direction in as an example, the left end of the furnace base 3 is connected to the base frame 1 through the lifting mechanism 2, and the right end is connected to the furnace frame through the rotating mechanism. The lifting mechanism 2 lifts the left end of the resistance furnace body 6, and the resistance furnace body 6 rotates around the right end rotating mechanism to form an inclination angle of left high and right low. In this embodiment, the inclination angle can be 30 degrees.
[0065] The feeding component 4 is connected to one end of the resistance furnace body 6, and the discharge port 8 can also be provided with a discharge sealing cover to prevent gas from entering the furnace body when the discharge amount is not large.
[0066] Specifically, the resistance furnace body 6 and the outer periphery of the resistance furnace body 6 may also have a protective baffle, which plays a protective role for the resistance furnace body 6 and can also isolate a certain temperature.
[0067] See also Figure 1 As shown, the protective baffle may be a baffle with a rectangular groove, or may match the shape of the resistance furnace body 6 , and may be specifically configured according to actual needs. The protective baffle does not rotate with the high-temperature alloy tube 64 .
[0068] If the protective baffle is a fully enclosed type, it can be designed as a semicircular groove with a cross section along the central axis of the joint surface in the upper and lower parts, as a space for the high-temperature alloy tube 64 to pass through. The upper part can be lifted to facilitate the placement of the furnace tube and maintenance. The upper and lower parts of the furnace body are distributed with resistance wires (insulation and heating components) for heating. The furnace tube driving device 7 drives the high-temperature alloy tube 64 to rotate through gear transmission. The high-temperature alloy tube 64 in the resistance furnace body 6 does not contact the insulation and heating component 65, and a small gap is retained.
[0069] The feeding mechanism 4 is connected to the left end of the resistance furnace body 6. The outer surface of the feeding mechanism 4 overlaps with the inner surface of the resistance furnace body 6, and forms a sealing mechanism together with the first dynamic sealing component 9. Specifically, the first dynamic sealing component 9 includes a spring 91, a dynamic sealing ring 92, and a static sealing ring 93 to prevent gas leakage. The dynamic sealing ring 92 rotates with the resistance furnace tube, and the static sealing ring 93 is fixed and does not rotate. The built-in spring 91 plays a role of pre-tightening, compensation and buffering, ensuring that the dynamic sealing ring 92 and the static sealing ring 93 are well fitted and auxiliary sealing.
[0070] The second dynamic sealing component has a similar structure to the first dynamic sealing component, but the position is different. The second dynamic sealing component acts between the discharge component and the high-temperature alloy tube 64 to prevent gas leakage. The dynamic sealing ring in the second dynamic sealing component rotates with the high-temperature alloy tube 64, and the static sealing ring 93 is fixed and does not rotate. A spring is also placed inside to play a pre-tightening, compensation and buffering role. For details, please refer to the above embodiment.
[0071] The feeding mechanism 4 may have a sealing cover to prevent dust. During continuous feeding, the powder may push open the inner sealing cover, and the feeding pipe may be filled with materials to seal the inner sealing cover. If a vacuum environment is required, the butterfly valve 63 may be closed and vacuum may be drawn through the air inlet 61 and / or the air outlet 62 to maintain the vacuum environment in the high-temperature alloy tube 64. The air inlet 61 and / or the air outlet 62 may also be used to fill in inert gas such as nitrogen or other required gas.
[0072] When the lithium-ion battery material (material) to be processed reaches the discharge port 8, the discharge sealing cover can be opened to release the lithium-ion battery material. When the amount of lithium-ion battery material discharged is large, the material will be gradually squeezed out to form a sealing effect.
[0073] The heating material of the resistance furnace body 6 is arranged with different heating elements according to the temperature range requirements to meet the high temperature reaction requirements of not more than 1400 degrees, and can be used to produce different types of battery materials such as lithium iron phosphate, lithium cobalt oxide, ternary materials, lithium manganese oxide, etc. The furnace can be filled with air or protective gas such as nitrogen.
[0074] Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0075] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.
Claims
1. A lithium-ion battery material synthesis rotary kiln device, characterized in that: include: Base frame (1), lifting mechanism (2), furnace base (3), resistance furnace body (6), furnace tube driving device (7); The resistance furnace body (6) is placed on the furnace base (3), and the lifting mechanism (2) is provided between the furnace base (3) and the base frame (1). Under the action of the lifting mechanism (2), the resistance furnace body (6) maintains a certain angle with the base frame (1); The furnace tube driving device (7) is located at one end of the resistance furnace body (6), and the furnace tube driving device (7) drives the high-temperature alloy tube (64) in the resistance furnace body (6) to rotate regularly; The resistance furnace body (6) comprises a heat-insulating and heating component (65) and the high-temperature alloy tube (64); the heat-insulating and heating component (65) wraps the high-temperature alloy tube (64); and the lithium-ion battery material is located inside the high-temperature alloy tube (64).
2. The device according to claim 1, characterized in that The two ends of the resistance furnace body (6) are respectively provided with an air inlet (61) and an exhaust port (62), and gas passes through the air inlet (61) and the exhaust port (62).
3. The device according to claim 1, characterized in that The lithium-ion battery material synthesis rotary kiln device further comprises: a butterfly valve (63) located on one side of the high end of the resistance furnace body (6).
4. The device according to claim 1, characterized in that It also includes a feeding component (4), and a first dynamic sealing component (9) is provided between the feeding component (4) and the high-temperature alloy tube (64). When the high-temperature alloy tube (64) rotates, the feeding component (4) does not rotate in cooperation with the first dynamic sealing component (9).
5. The device according to claim 4, characterized in that The first dynamic sealing component (9) comprises a spring (91), a dynamic sealing ring (92), and a static sealing ring (93); The spring (91) is located between the dynamic seal ring (92) and the static seal ring (93), and the dynamic seal ring (92) and the static seal ring (93) are respectively located at one end of the feeding component (4) and the resistance furnace body (6).
6. The device according to claim 1, characterized in that The device further comprises: a discharge component, the discharge component comprising a second dynamic sealing component and a discharge port (8), the discharge port (8) being located at a lower end side of the lithium ion battery material synthesis rotary kiln device, with an open end facing downward; the second dynamic sealing component being located between the discharge component and the resistance furnace body (6).
7. The device according to claim 1, characterized in that The angle between the resistance furnace body (6) and the base frame (1) is 10 degrees to 35 degrees.
8. The device according to claim 1, characterized in that The heat-insulating and heating component (65) comprises a heat-insulating material and a heating material, and the heat-insulating and heating component (65) is not in direct contact with the high-temperature alloy tube (64).
9. The device according to claim 2, characterized in that The interior of the resistance furnace body (6) is filled with protective gas through the air inlet (61) and the exhaust port (62).
10. The device according to claim 3, characterized in that The butterfly valve (63) is in a closed state, and a vacuum is drawn by using the air inlet (61) and the air outlet (62) of the resistance furnace body (6), so that the high-temperature alloy tube (64) remains in a vacuum state.