Negative electrode material drying equipment for battery production
Through the combination of hot air mechanism and gear transmission system, the problem of accumulation and adhesion of negative electrode materials during the drying process is solved, achieving more efficient drying effect and improved battery performance.
Patent Information
- Application Number
- CN202510968209.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-14
- Publication Date
- 2025-10-10
AI Technical Summary
The negative electrode material is prone to accumulation and adhesion during the drying process, resulting in incomplete drying, affecting battery performance and production efficiency.
The hot air mechanism is combined with a motor-driven gear transmission system. The material is turned over by a stirring frame and a scraper. Combined with the circulating air supply and spoiler design, it ensures that the material is fully dried and prevents adhesion.
The negative electrode material is fully dried, the drying efficiency and battery performance are improved, and the production cost and equipment maintenance frequency are reduced.
Smart Images
Figure CN120760425A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of battery production, in particular to negative electrode material drying equipment for battery production. Background Art
[0002] In battery production, the quality of anode materials, a key component of batteries, directly impacts their performance and service life. Drying anode materials is a crucial step in the production process, and the drying process is directly related to their quality.
[0003] During the traditional drying process of negative electrode materials, uneven drying often occurs due to the material's stickiness and tendency to accumulate. Parts of the negative electrode material may accumulate, preventing the internal materials from being fully exposed to the hot air, resulting in incomplete drying. Residual moisture can affect the battery's electrochemical performance, reducing its capacity, cycle life, and safety.
[0004] At the same time, the negative electrode material tends to stick to the inner walls of the drying equipment during the drying process. This not only wastes material and increases production costs, but also affects the normal operation of the drying equipment, requiring regular downtime for cleaning and reducing production efficiency. Furthermore, most conventional drying equipment uses a single stirring method, which has limited stirring effect and makes it difficult to fully stir the negative electrode material, thus failing to effectively solve the problems of uneven drying and material adhesion. Summary of the Invention
[0005] In response to the shortcomings of the existing technology, the present invention provides a negative electrode material drying device for battery production, which solves the problem that some negative electrode materials may accumulate together and the negative electrode materials are easily adhered to the inner wall of the drying device during the drying process, resulting in incomplete drying.
[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A negative electrode material drying equipment for battery production, comprising a base and a drying tank, the drying tank is provided with a feed port, the upper surface of the base is provided with a hot air mechanism, the hot air mechanism is connected to the drying tank, the upper surface of the base is fixedly connected with a bracket 1, the bracket 1 is installed with a motor, the output end of the motor is fixedly connected with a transmission shaft, the transmission shaft passes through the drying tank and is rotatably connected to the drying tank, the outer wall of the transmission shaft is fixedly connected with a gear 1, the tooth end of the gear 1 is meshed with a gear 2, the interior of the drying tank is fixedly connected with a spoiler, the interior of the gear 2 is fixedly connected with a rotating shaft 1, the outer wall of the rotating shaft 1 passes through the spoiler and is rotatably connected to the spoiler, the outer wall of the rotating shaft 1 is fixedly connected with a stirring frame and a scraper 1, the scraper 1 is in contact with the inner wall of the drying tank, and the upper surface of the base is provided with a support assembly.
[0007] Through the above scheme: a hot air mechanism is used to form a circulating air supply to transport hot air into the drying tank, thereby achieving effective drying of the negative electrode material; a motor is used to drive the transmission shaft, and the gear transmission drives the rotating shaft to rotate, so that the stirring frame and the scraper rotate. The rotation of the stirring frame and the scraper can not only turn over the negative electrode material to avoid accumulation, but also prevent the negative electrode material from sticking to the inner wall of the drying tank, ensuring that the negative electrode material is fully dried and improving the drying effect and efficiency.
[0008] Preferably, the support assembly includes a base, which is fixedly connected to the upper surface of the base, a limiting ring is embedded in the base, the limiting ring is rotatably connected to the base, and the inner wall of the limiting ring is fixedly connected to the outer wall of the drying tank.
[0009] Preferably, the hot air mechanism includes a dehumidifier and a hot air heater, the dehumidifier and the hot air heater are installed on the upper surface of the base, the dehumidifier and the hot air heater are both connected to air ducts, the hot air heater and the dehumidifier are respectively connected to the two sides of the drying tank through the air ducts, and the hot air heater and the dehumidifier are connected through the air ducts.
[0010] Preferably, filter plates are rotatably connected to the inner walls on both sides of the drying tank, scraper plates 2 are fixedly connected to the inner walls on both sides of the drying tank, the outer wall of the first rotating shaft is fixedly connected to the filter plates, and the filter plates are fitted with scraper plates 2.
[0011] Preferably, the inner wall of the feed port is threadedly connected to a cover plate, and the upper surface of the cover plate is fixedly connected to a handle.
[0012] Preferably, the outer wall of the transmission shaft is fixedly connected with a gear three, the tooth end of the gear three is meshedly connected with a gear ring, and the gear ring is embedded in the interior of the drying tank and is rotatably connected to the drying tank.
[0013] Preferably, the outer wall of the gear ring is fixedly connected to a limit block, the limit block rotates in contact with the outer wall of the drying tank, a limit pin is provided inside the limit block, and the limit pin is bolted to the drying tank.
[0014] Preferably, the outer wall of the scraper 2 on the side close to the motor is fixedly connected with a fixed shell, and the fixed shell is penetrated by the rotating shaft 1 and rotates with the rotating shaft 1.
[0015] Preferably, the outer wall of the rotating shaft 1 is fixedly connected to a first bevel gear, the tooth end of the first bevel gear is meshedly connected to a second bevel gear, the outer wall of the second bevel gear is fixedly connected to the rotating shaft 2, and the rotating shaft 2 passes through the fixed shell and is rotatably connected to the fixed shell.
[0016] Preferably, the interior of the second rotating shaft is slidably connected to a spline shaft, the outer wall of the spline shaft is fixedly connected to a spiral guide plate, and the spiral guide plate is located inside the feed port.
[0017] Working principle: First, open the feed port on the drying tank. Since the inner wall of the feed port is threadedly connected to a cover plate, a handle is fixed on the upper surface of the cover plate. The cover plate can be twisted by the handle to remove it from the feed port. Then, insert the spline shaft into the interior of the second rotating shaft. At this time, the negative electrode material to be dried can be added to the feed port. During the feeding process, the first rotating shaft is in a rotating state, which will drive the first bevel gear to rotate. The first bevel gear is engaged with the second bevel gear, and then drives the second bevel gear to rotate. The second bevel gear drives the second rotating shaft to rotate. The rotation of the second rotating shaft drives the spline shaft to rotate, so that the spiral guide plate rotates inside the feed port, effectively avoiding the phenomenon of material piling at the feed port, and ensuring that the negative electrode material can smoothly enter the interior of the drying tank; After the negative electrode material enters the drying tank, the hot air mechanism starts to work. The hot air heater heats the gas through resistance heating, and then uses the fan to transport the hot air from one side of the drying tank through the air duct to the inside of the drying tank to dry the negative electrode material. The gas generated during the drying process flows out from the other side of the drying tank and enters the dehumidifier for dehumidification. The dehumidified gas flows back to the hot air heater, forming a circulating air supply, continuously drying the negative electrode material to ensure the drying effect; While the hot air circulates and dries, the motor drives the transmission shaft to rotate, and the gear 1 on the transmission shaft rotates accordingly, and drives the gear 2 meshing with it to rotate. The gear 2 drives the stirring rack and the scraper 1 to rotate through the rotating shaft 1. The rotation of the stirring rack and the scraper 1 causes the negative electrode material inside the drying tank to be continuously turned over, thereby preventing the negative electrode material from piling up and affecting the drying effect. At the same time, the scraper 1 rotates in contact with the inner wall of the drying tank, which can effectively prevent the negative electrode material from adhering to the inner wall of the drying tank, ensuring that the negative electrode material can fully contact with the hot air and achieve sufficient drying. After the hot air enters from one side of the drying tank, it first passes through the spoiler to disturb the flow. Since the opening of the spoiler is larger than the filter plate, the hot air then needs to pass through the filter plate. When the rotating shaft rotates, it drives the filter plate to rotate. The rotation of the filter plate can further blow away the hot air, change the flow direction of the hot air, and make the hot air evenly distributed inside the drying tank to ensure uniform heating. Scraper 2 is fixed to the inner wall of both sides of the drying tank. When the filter plate rotates, it fits with the scraper 2. The filter plate itself can isolate the negative electrode material to prevent the negative electrode material from getting stuck in the gear, while the scraper 2 can prevent the filter plate from being blocked, ensuring that the hot air can circulate normally. When the feed port is closed, the limit pin is passed through the limit block and connected to the drying tank. At this time, the rotation of the transmission shaft drives gear three to rotate, gear three drives the gear ring to rotate, and the gear ring drives the drying tank to rotate through the limit block and the limit pin. The drying tank and the stirring frame inside it rotate in the opposite direction. This reverse rotation can further drive the negative electrode material inside the drying tank to turn over, accelerate the drying speed, and make the negative electrode material dry more fully. If the drying tank does not need to rotate, just remove the limit pin from the drying tank. At this time, the limit block and the gear ring can rotate idly with the drying tank.
[0018] The present invention provides a negative electrode material drying device for battery production, which has the following beneficial effects: 1. The present invention drives the transmission shaft to rotate through a motor, and drives the stirring frame and the scraper to rotate through gear transmission. The stirring frame turns the negative electrode material inside the drying tank to avoid accumulation. The scraper rotates in contact with the inner wall of the drying tank to prevent the negative electrode material from sticking to the tank wall, thereby ensuring that the negative electrode material is fully dried.
[0019] 2. In the present invention, when the stirring frame rotates and stirs, the transmission shaft drives gear 3 and the gear ring to rotate, thereby driving the drying tank to rotate. The drying tank and the stirring frame rotate in opposite directions, further driving the negative electrode material to turn over, accelerating the drying speed and making the drying more complete.
[0020] 3. The hot air entering the drying tank is first disturbed by the spoiler and then further dispersed by the filter plate, changing its flow direction. This creates a more complex flow path and evenly distributes the air inside the drying tank, ensuring uniform heating. The rotation of the filter plate, in conjunction with the fixed scraper, prevents blockage and ensures normal flow of hot air.
[0021] 4. When adding materials is required, the spline shaft is inserted into the interior of the second rotating shaft. When the first rotating shaft rotates, the second rotating shaft is driven to rotate through the bevel gear transmission, and then the spiral guide plate is driven to rotate inside the feed port, avoiding material accumulation at the feed port and ensuring smooth material discharge from the feed port. The fixed shell can protect the bevel gear to prevent it from being stuck by the negative electrode material. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a perspective view of the present invention.
[0023] Figure 2 Schematic diagram of the gear ring structure of the present invention.
[0024] Figure 3 It is a schematic cross-sectional view of the internal structure of the drying tank of the present invention.
[0025] Figure 4 It is a schematic structural diagram of the stirring frame of the present invention.
[0026] Figure 5 It is a schematic diagram of the cover plate structure of the present invention.
[0027] Figure 6 It is a schematic cross-sectional view of the internal structure of the fixed shell of the present invention.
[0028] Figure 7 Schematic diagram of the spiral guide plate structure of the present invention.
[0029] Among them, 1. base; 2. drying tank; 3. hot air mechanism; 301. dehumidifier; 302. hot air heater; 303. air duct; 4. bracket one; 5. motor; 6. transmission shaft; 7. gear one; 8. gear two; 9. rotating shaft one; 10. spoiler; 11. stirring frame; 12. scraper one; 13. base; 14. limit ring; 15. filter plate; 16. scraper two; 17. gear ring; 18. gear three; 19. limit block; 20. limit pin; 21. feed port; 22. cover plate; 23. handle; 24. fixed shell; 25. first bevel gear; 26. second bevel gear; 27. rotating shaft two; 28. spline shaft; 29. spiral guide plate. DETAILED DESCRIPTION
[0030] The following will clearly and completely describe the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0031] Please see the attached Figure 1 -Attached Figure 4 An embodiment of the present invention provides a negative electrode material drying device for battery production, comprising a base 1 and a drying tank 2, the drying tank 2 being provided with a feed port 21, a hot air mechanism 3 being provided on the upper surface of the base 1, the hot air mechanism 3 being connected to the drying tank 2, a bracket 4 being fixedly connected to the upper surface of the base 1, a motor 5 being installed on the bracket 4, a transmission shaft 6 being fixedly connected to the output end of the motor 5, the transmission shaft 6 passing through the drying tank 2 and being rotatably connected to the drying tank 2, a gear 7 being fixedly connected to the outer wall of the transmission shaft 6, a gear 2 being meshed with the tooth end of the gear 7, a spoiler 10 being fixedly connected to the interior of the drying tank 2, a rotating shaft 9 being fixedly connected to the interior of the gear 2 8, the outer wall of the rotating shaft 9 passing through the spoiler 10 and being rotatably connected to the spoiler 10, a stirring frame 11 and a scraper 12 being fixedly connected to the outer wall of the rotating shaft 9, the scraper 12 being in contact with the inner wall of the drying tank 2, and a supporting assembly being provided on the upper surface of the base 1.
[0032] Specifically, the negative electrode material to be dried is placed inside the drying tank 2, and hot air is transported to the inside of the drying tank 2 by the hot air mechanism 3, and the hot air mechanism 3 forms a circulating air supply. The hot air is blown into the interior of the drying tank 2 by the hot air mechanism 3, thereby drying the negative electrode material. When drying, the bracket 14 supports the motor 5, and the motor 5 can be started to drive the transmission shaft 6 at the output end to rotate. The transmission shaft 6 drives the gear 2 8 to rotate through the gear 17, and the gear 2 8 drives the stirring frame 11 and the scraper 12 to rotate through the rotating shaft 19. The spoiler 10 can support the rotation of the rotating shaft 9. The rotation of the stirring frame 11 and the scraper 12 can flip the negative electrode material inside the drying tank 2 and prevent the negative electrode material from accumulating inside the drying tank 2. The scraper 12 rotates in contact with the inner wall of the drying tank 2 to prevent the negative electrode material from sticking to the inner wall of the drying tank 2, thereby ensuring that the negative electrode material is fully dried.
[0033] Please see the attached Figure 5 The support assembly includes a base 13, which is fixedly connected to the upper surface of the base 1. A limiting ring 14 is embedded in the interior of the base 13. The limiting ring 14 is rotatably connected to the base 13, and the inner wall of the limiting ring 14 is fixedly connected to the outer wall of the drying tank 2.
[0034] Specifically, the drying tank 2 of this solution can rotate. A limiting ring 14 is provided on the outer wall of the drying tank 2 . The limiting ring 14 is supported to rotate by the base 13 , thereby supporting and limiting the rotation of the drying tank 2 .
[0035] Please see the attached Figure 1 The hot air mechanism 3 includes a dehumidifier 301 and a hot air heater 302. The dehumidifier 301 and the hot air heater 302 are installed on the upper surface of the base 1. The dehumidifier 301 and the hot air heater 302 are both connected to the air duct 303. The hot air heater 302 and the dehumidifier 301 are respectively connected to the two sides of the drying tank 2 through the air duct 303. The hot air heater 302 and the dehumidifier 301 are connected through the air duct 303.
[0036] Specifically, the hot air mechanism 3 is used to deliver hot air to the interior of the drying tank 2 and to bring out the gas inside the drying tank 2. The gas is first heated by the hot air heater 302 using resistance heating, and then passes through the fan and the air duct 303 to deliver the hot air from one side of the drying tank 2 to the interior of the drying tank 2 to dry the negative electrode material inside the drying tank 2. The gas is then brought out of the drying tank 2 from the other side and flows to the dehumidifier 301. The dehumidifier 301 dehumidifies the gas, and then the dehumidified gas flows back to the hot air heater 302.
[0037] Please see the attached Figure 3 -Attached Figure 4 The inner walls on both sides of the drying tank 2 are rotatably connected to the filter plates 15, the inner walls on both sides of the drying tank 2 are fixedly connected to the scraper 2 16, the outer wall of the rotating shaft 1 9 is fixedly connected to the filter plate 15, and the filter plate 15 is fitted with the scraper 2 16.
[0038] Specifically, the hot air enters from one side of the drying tank 2 and is first disturbed by the spoiler 10. The opening of the spoiler 10 is larger than the filter plate 15. When the rotating shaft 9 rotates, the filter plate 15 can be driven to rotate at the same time. The drying tank 2 supports the filter plate 15 to rotate. The hot air passes through the spoiler 10 and also needs to pass through the filter plate 15. When the filter plate 15 rotates, it can further blow away the hot air and change its flow direction, so that it has a more complex flow path, so that the hot air is evenly distributed inside the drying tank 2, ensuring more uniform heating. The outer wall of the filter plate 15 is attached with a scraper 2 16. The filter plate 15 itself can be used to isolate the negative electrode material to prevent the negative electrode material from getting stuck in the gear. When the filter plate 15 rotates, it cooperates with the fixed scraper 2 16 to avoid clogging of the filter plate 15, ensuring normal circulation of the hot air.
[0039] Please see the attached Figure 5 The inner wall of the feed port 21 is threadedly connected to a cover plate 22 , and the upper surface of the cover plate 22 is fixedly connected to a handle 23 .
[0040] Specifically, after the negative electrode material is added to the drying tank 2, the cover plate 22 can be installed inside the feed port 21. In this solution, the feed port 21 and the cover plate 22 can be connected by threads. When in use, the cover plate 22 can be screwed by the handle 23 to install the cover plate 22 on the drying tank 2 and close the feed port 21.
[0041] Please see the attached Figure 1 -Attached Figure 2 The outer wall of the transmission shaft 6 is fixedly connected to a gear three 18, and the tooth end of the gear three 18 is meshed with a gear ring 17. The gear ring 17 is embedded in the interior of the drying tank 2 and is rotatably connected to the drying tank 2; the outer wall of the gear ring 17 is fixedly connected to a limit block 19, and the limit block 19 rotates in contact with the outer wall of the drying tank 2. A limit pin 20 is provided inside the limit block 19, and the limit pin 20 is bolted to the drying tank 2.
[0042] Specifically, when the feed port 21 is closed, the limit pin 20 can be passed through the limit block 19 to connect with the drying tank 2. At this time, the rotation of the gear ring 17 can drive the drying tank 2 to rotate. When the stirring frame 11 rotates for stirring, the transmission shaft 6 can drive the gear three 18 to drive the gear ring 17 to rotate. The gear ring 17 drives the drying tank 2 to rotate through the limit block 19 and the limit pin 20. The drying tank 2 rotates in the opposite direction to the stirring frame 11 inside it, which can further drive the negative electrode material inside the drying tank 2 to flip, speed up the drying speed, and dry the negative electrode material more fully. When the limit pin 20 is removed from the inside of the drying tank 2, the limit block 19 and the gear ring 17 can idle with the drying tank 2.
[0043] Please see the attached Figure 6 -Attached Figure 7The outer wall of the scraping plate two 16 on the side close to the motor 5 is fixedly connected with a fixed shell 24, the fixed shell 24 is penetrated by the rotating shaft one 9 and rotates with the rotating shaft one 9; the outer wall of the rotating shaft one 9 is fixedly connected with a first bevel gear 25, the tooth end of the first bevel gear 25 is meshedly connected with a second bevel gear 26, the outer wall of the second bevel gear 26 is fixedly connected with a rotating shaft two 27, the rotating shaft two 27 penetrates through the fixed shell 24 and is rotatably connected with the fixed shell 24; the inside of the rotating shaft two 27 is slidably connected with a spline shaft 28, the outer wall of the spline shaft 28 is fixedly connected with a spiral flow guide plate 29, and the spiral flow guide plate 29 is located inside the feeding port 21.
[0044] Specifically, when the feeding is needed, the drying tank 2 no longer rotates, the cover plate 22 is removed first, the spline shaft 28 is inserted into the inside of the rotating shaft two 27, and the feeding is thrown to the feeding port 21; when the rotating shaft one 9 rotates, the rotating shaft one 9 drives the first bevel gear 25 to rotate, the first bevel gear 25 meshes with the second bevel gear 26 to rotate, the second bevel gear 26 drives the rotating shaft two 27 to rotate, the fixed shell 24 supports the rotating shaft two 27 to rotate, and the fixed shell 24 can protect the first bevel gear 25 and the second bevel gear 26 from being stuck by the negative material, the rotating shaft two 27 can drive the spline shaft 28 to rotate, so that the spiral flow guide plate 29 rotates, the spiral flow guide plate 29 rotates inside the feeding port 21, the feeding port 21 can be prevented from being stacked, and the feeding of the feeding port 21 is guaranteed.
[0045] Although the embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A negative electrode material drying device for battery production, comprising a base (1) and a drying tank (2), characterized in that: The drying tank (2) is provided with a feed port (21), the upper surface of the base (1) is provided with a hot air mechanism (3), the hot air mechanism (3) is connected to the drying tank (2), the upper surface of the base (1) is fixedly connected with a bracket (4), the bracket (4) is installed with a motor (5), the output end of the motor (5) is fixedly connected with a transmission shaft (6), the transmission shaft (6) passes through the drying tank (2) and is rotatably connected to the drying tank (2), and the outer wall of the transmission shaft (6) is fixedly connected with a gear (7), The tooth end of the gear 1 (7) is meshedly connected with the gear 2 (8), the interior of the drying tank (2) is fixedly connected with a spoiler (10), the interior of the gear 2 (8) is fixedly connected with a rotating shaft 1 (9), the outer wall of the rotating shaft 1 (9) passes through the spoiler (10) and is rotatably connected to the spoiler (10), the outer wall of the rotating shaft 1 (9) is fixedly connected with a stirring frame (11) and a scraper 1 (12), the scraper 1 (12) is in contact with the inner wall of the drying tank (2), and the upper surface of the base (1) is provided with a support assembly.
2. The negative electrode material drying equipment for battery production according to claim 1, characterized in that: The support assembly includes a base (13), the lower surface of the base (13) is fixedly connected to the upper surface of the base (1), a limiting ring (14) is embedded in the interior of the base (13), the limiting ring (14) is rotatably connected to the base (13), and the inner wall of the limiting ring (14) is fixedly connected to the outer wall of the drying tank (2).
3. The negative electrode material drying equipment for battery production according to claim 2, characterized in that: The hot air mechanism (3) comprises a dehumidifier (301) and a hot air heater (302), wherein the dehumidifier (301) and the hot air heater (302) are both mounted on the upper surface of the base (1), and the dehumidifier (301) and the hot air heater (302) are both connected to an air duct (303), and the hot air heater (302) and the dehumidifier (301) are respectively connected to two sides of the drying tank (2) via the air duct (303), and the hot air heater (302) and the dehumidifier (301) are connected via the air duct (303).
4. The negative electrode material drying equipment for battery production according to claim 3, characterized in that: The inner walls on both sides of the drying tank (2) are rotatably connected to filter plates (15), the inner walls on both sides of the drying tank (2) are fixedly connected to scraper plates 2 (16), the outer wall of the rotating shaft 1 (9) is fixedly connected to the filter plates (15), and the filter plates (15) are in contact with the scraper plates 2 (16).
5. The negative electrode material drying equipment for battery production according to claim 4, characterized in that: The inner wall of the feed port (21) is threadedly connected to a cover plate (22), and the upper surface of the cover plate (22) is fixedly connected to a handle (23).
6. The negative electrode material drying equipment for battery production according to claim 1, characterized in that: The outer wall of the transmission shaft (6) is fixedly connected to a gear three (18), the tooth end of the gear three (18) is meshedly connected to a gear ring (17), and the gear ring (17) is embedded in the interior of the drying tank (2) and is rotationally connected to the drying tank (2).
7. The negative electrode material drying equipment for battery production according to claim 6, characterized in that: The outer wall of the gear ring (17) is fixedly connected to a limit block (19), and the limit block (19) rotates in contact with the outer wall of the drying tank (2). A limit pin (20) is provided inside the limit block (19), and the limit pin (20) is bolted to the drying tank (2).
8. The negative electrode material drying equipment for battery production according to claim 7, characterized in that: The outer wall of the scraper 2 (16) on the side close to the motor (5) is fixedly connected with a fixed shell (24), and the fixed shell (24) is penetrated by the rotating shaft 1 (9) and is rotatably connected to the rotating shaft 1 (9).
9. The negative electrode material drying equipment for battery production according to claim 4, characterized in that: The outer wall of the rotating shaft 1 (9) is fixedly connected to a first bevel gear (25), the tooth end of the first bevel gear (25) is meshedly connected to a second bevel gear (26), the outer wall of the second bevel gear (26) is fixedly connected to the rotating shaft 2 (27), and the rotating shaft 2 (27) passes through the fixed housing (24) and is rotatably connected to the fixed housing (24).
10. The negative electrode material drying equipment for battery production according to claim 9, characterized in that: The interior of the second rotating shaft (27) is slidably connected to a spline shaft (28), and the outer wall of the spline shaft (28) is fixedly connected to a spiral guide plate (29), and the spiral guide plate (29) is located inside the feed port (21).