Raw material mixing device for producing negative electrode material of lithium ion battery

Abstract

The invention belongs to the technical field of lithium battery production, and discloses a raw material mixing device for lithium ion battery negative electrode material production, which is technically characterized by comprising a base, a fixing frame is fixedly mounted on the surface of the base, a supporting rod is rotatably mounted on one side wall of the fixing frame, and a mixing barrel is fixedly mounted at one end, away from the fixing frame, of the supporting rod; a transverse barrel is rotatably mounted in an inner cavity of the material mixing barrel, a suspension assembly matched with the material mixing barrel is arranged on the surface of the fixing frame, a material mixing mechanism is arranged in the material mixing barrel and comprises a screening assembly, a stirring assembly and a material overturning assembly, and the suspension assembly is arranged to be matched with the material mixing barrel; the mixing barrel can be controlled to move back and forth in the vertical plane to be in an inclined state, raw materials can slide back and forth in the inner cavity of the mixing barrel, the stirring assembly and the overturning assembly are arranged to be matched with each other, the sliding raw materials can be efficiently mixed and stirred in the inner cavity of the mixing barrel, and the mixing effect and mixing efficiency of the raw materials are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of lithium battery production technology, specifically to a raw material mixing device for the production of lithium-ion battery anode materials. Background Technology

[0002] A lithium-ion battery is a rechargeable battery that primarily functions by the movement of lithium ions between the positive and negative electrodes. During charging and discharging, lithium ions repeatedly insert and extract between the two electrodes: during charging, lithium ions extract from the positive electrode, pass through the electrolyte, and insert into the negative electrode, leaving the negative electrode in a lithium-rich state; the reverse occurs during discharging.

[0003] Batteries typically use lithium-containing materials as electrodes and are representative of modern high-performance batteries. The negative electrode of a battery is generally formed by mixing various raw materials, primarily graphite. This process requires mixing multiple groups of raw materials.

[0004] When processing equipment mixes raw materials, it simply stirs and mixes them by rotating rods. This existing stirring method is rather simplistic; the raw materials pile up, resulting in poor mixing. Furthermore, it cannot filter out larger particles in the raw materials during the stirring process, leading to poor mixed quality. Summary of the Invention

[0005] The purpose of this invention is to provide a raw material mixing device for the production of lithium-ion battery anode materials, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A raw material mixing device for producing lithium-ion battery negative electrode materials includes a base, a fixing frame fixedly mounted on the surface of the base, the fixing frame having an inverted U-shaped structure, a support rod rotatably mounted on one side wall of the fixing frame, a mixing cylinder fixedly mounted at the end of the support rod away from the fixing frame, a horizontal cylinder rotatably mounted inside the mixing cylinder, a feed funnel extending into the inner cavity of the horizontal cylinder fixedly mounted on the side wall of the mixing cylinder, a discharge port communicating with the inner cavity of the horizontal cylinder having a first sealing plug installed in the discharge port, a discharge port communicating with the bottom of the mixing cylinder having a second sealing plug installed in the discharge port, and a surface of the fixing frame being provided with... A suspension assembly cooperates with the mixing cylinder to control the mixing cylinder to reciprocate in a vertical plane to an inclined state. The mixing cylinder is equipped with a mixing mechanism, which includes a screening assembly, a stirring assembly, and a turning assembly. The screening assembly is located on the side wall of the mixing cylinder and connected to the horizontal cylinder. The screening assembly filters larger particles in the raw material by cooperating with the horizontal cylinder. The stirring assembly is located on the surface of the horizontal cylinder. The rotating horizontal cylinder and the stirring assembly cooperate to mix and agitate the raw material in the inner cavity of the mixing cylinder. The turning assembly is located on the annular inner side wall of the mixing cylinder. The turning assembly is used to turn over the raw material accumulated at the bottom of the mixing cylinder.

[0008] As a further aspect of the present invention: the suspension assembly includes a rotating column located above the mixing cylinder, which is rotatably mounted on both opposite side walls of the fixed frame. A winding reel is fixedly mounted on the surface of the rotating column, and a pull rope is wound on the surface of the winding reel. The end of the pull rope away from the winding reel is connected to the end of the mixing cylinder away from the support rod. A fixed gear plate is fixedly mounted on the surface of the rotating column. A first motor is fixedly mounted on the side wall of the fixed frame. A transmission disc located outside the fixed gear plate is fixedly mounted on the output shaft of the first motor. An arc-shaped rack is fixedly mounted on the surface of the transmission disc, and the rack meshes with the fixed gear plate.

[0009] As a further aspect of the present invention: the screening component includes a cross cylinder with multiple sets of uniformly distributed filter meshes on its surface, a positioning toothed ring fixedly installed at one end of the cross cylinder, a second motor fixedly installed on the side wall of the mixing cylinder, the output shaft of the second motor extending into the inner cavity of the mixing cylinder and fixedly installed with a transmission toothed disc, and the transmission toothed disc meshing with the positioning toothed ring.

[0010] As a further aspect of the present invention: the stirring assembly includes multiple sets of stirring vertical rods fixedly installed on the surface of the horizontal cylinder in a ring-shaped distribution, and multiple sets of stirring horizontal rods arranged in parallel on the surface of the stirring vertical rods.

[0011] As a further aspect of the present invention: the material turning assembly includes a bearing ring rotatably mounted on the annular inner wall of the mixing cylinder, a plurality of sets of turning plates distributed in an annular and equally spaced manner are fixedly mounted on the inner side wall of the bearing ring, and a transmission gear ring is fixedly mounted on the inner side wall of the bearing ring, the transmission gear ring being meshed with and connected to the transmission gear disc.

[0012] As a further aspect of the present invention: an annular guide groove is provided on the inner side wall of the mixing cylinder, and a guide ring is fixedly installed on the outer side wall of the bearing ring, and the guide ring is rotatably installed in the guide groove.

[0013] As a further embodiment of the present invention: the two inner sidewalls opposite to each other of the mixing cylinder are respectively provided with annular grooves, and the two ends of the cross cylinder are respectively rotatably installed in the annular grooves.

[0014] Compared with existing technologies, the beneficial effects of this invention are as follows: By setting a suspension component that cooperates with the mixing cylinder, the mixing cylinder can be controlled to reciprocate in a vertical plane to an inclined state. The raw materials can slide back and forth inside the mixing cylinder. By setting a stirring component and a turning component that cooperate with each other, the sliding raw materials can be efficiently mixed and stirred inside the mixing cylinder, effectively improving the mixing effect and efficiency. This solves the problem that current stirring methods are relatively simple, resulting in raw materials piling up and poor mixing effect.

[0015] By setting up a screening component that works in conjunction with the horizontal cylinder, larger particles mixed with the raw materials can be filtered out and retained, effectively improving the mixing quality and preventing larger particles from affecting the mixed materials. This solves the problem of poor mixing quality caused by the inability to filter larger particles during the mixing process. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a raw material mixing device for producing lithium-ion battery anode materials, provided in an embodiment of the present invention. Figure 1 .

[0017] Figure 2 This is a three-dimensional structural diagram of a raw material mixing device for producing lithium-ion battery anode materials, provided in an embodiment of the present invention. Figure 2 .

[0018] Figure 3 This is a front view schematic diagram of a raw material mixing device for producing lithium-ion battery anode materials provided in an embodiment of the present invention.

[0019] Figure 4 This is a schematic diagram of the internal cross-sectional structure of the mixing cylinder in a raw material mixing device for producing lithium-ion battery anode materials provided in an embodiment of the present invention.

[0020] Figure 5 This is a schematic diagram of the bearing ring and its connection structure in a raw material mixing device for producing lithium-ion battery anode materials, provided in an embodiment of the present invention.

[0021] The components are as follows: 1-base, 2-fixed frame, 3-support rod, 4-mixing cylinder, 5-suspension assembly, 51-rotating column, 52-winding reel, 53-pull rope, 54-fixed gear disc, 55-first motor, 56-transmission disc, 57-rack, 6-horizontal cylinder, 61-feeding funnel, 62-first sealing plug, 63-second sealing plug, 7-mixing mechanism, 71-screening assembly, 711-filter mesh, 712-positioning gear ring, 713-second motor, 714-transmission gear disc, 72-mixing assembly, 721-mixing vertical rod, 722-mixing horizontal rod, 73-turning assembly, 731-bearing ring, 732-turning plate, 733-transmission gear ring, 8-guide groove, 9-guide ring, 10-ring groove. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0023] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0024] like Figure 1 , Figure 2 , Figure 3The diagram shows a structural diagram of a raw material mixing device for producing lithium-ion battery negative electrode materials according to an embodiment of the present invention. It includes a base 1, a fixing frame 2 fixedly mounted on the surface of the base 1, the fixing frame 2 having an inverted U-shaped structure, a support rod 3 rotatably mounted on one side wall of the fixing frame 2, a mixing cylinder 4 fixedly mounted at the end of the support rod 3 away from the fixing frame 2, a horizontal cylinder 6 rotatably mounted inside the mixing cylinder 4, a feed funnel 61 extending into the inner cavity of the horizontal cylinder 6 fixedly mounted on the side wall of the mixing cylinder 4, a discharge port communicating with the inner cavity of the horizontal cylinder 6 on the side wall of the mixing cylinder 4, a first sealing plug 62 installed in the discharge port, and a discharge port communicating with the bottom of the mixing cylinder 4 on the side wall of the mixing cylinder 4, a second sealing plug 63 installed in the discharge port. A suspension assembly 5 is provided on the surface to cooperate with the mixing cylinder 4. The suspension assembly 5 is used to control the mixing cylinder 4 to reciprocate and rotate in the vertical plane to an inclined state. A mixing mechanism 7 is provided inside the mixing cylinder 4. The mixing mechanism 7 includes a screening assembly 71, a stirring assembly 72, and a turning assembly 73. The screening assembly 71 is located on the side wall of the mixing cylinder 4 and is connected to the horizontal cylinder 6. The screening assembly 71 filters larger particles in the raw material by cooperating with the horizontal cylinder 6. The stirring assembly 72 is located on the surface of the horizontal cylinder 6. The rotating horizontal cylinder 6 and the stirring assembly 72 cooperate with each other to mix and agitate the raw material in the cavity of the mixing cylinder 4. The turning assembly 73 is located on the annular inner side wall of the mixing cylinder 4. The turning assembly 73 is used to turn over the raw material accumulated at the bottom of the mixing cylinder 4.

[0025] Initially, the first sealing plug 62 seals the discharge port, and the second sealing plug 63 seals the discharge port. The raw materials to be mixed are fed into the horizontal cylinder 6 through the feed funnel 61. The screening component 71 controls the horizontal cylinder 6 to rotate within the mixing cylinder 4. The screening component 71 and the horizontal cylinder 6 work together to efficiently filter the raw materials. Larger particles are retained within the horizontal cylinder 6, while smaller particles fall into the mixing cylinder 4. The rotating horizontal cylinder 6 works in conjunction with the stirring component 72 to agitate the raw materials accumulated within the mixing cylinder 4. Simultaneously, the turning component 73 continuously turns over the raw materials accumulated at the bottom of the mixing cylinder 4, further improving the mixing effect. While the raw materials are being stirred and mixed, the suspension assembly 5 and the support rod 3 work together to control the mixing cylinder 4 and the horizontal cylinder 6 to reciprocate in the vertical plane to an inclined state. When the mixing cylinder 4 and the horizontal cylinder 6 are rotated to the inclined state, the raw materials slide towards the lower end of the inner cavity of the mixing cylinder 4 and the horizontal cylinder 6, which can further improve the mixing effect of the raw materials in the inner cavity of the mixing cylinder 4 and further improve the filtration efficiency of the horizontal cylinder 6 for the raw materials. After the raw materials are mixed, when the mixing cylinder 4 and the horizontal cylinder 6 are rotated to the inclined state, the first sealing plug 62 can be opened to easily discharge larger impurity particles in the inner cavity of the horizontal cylinder 6, and the second sealing plug 63 can be opened to easily remove the mixed raw materials from the inner cavity of the mixing cylinder 4.

[0026] like Figure 1 , Figure 2 , Figure 3 As shown, in a preferred embodiment of the present invention, the suspension assembly 5 includes a rotating column 51 located above the mixing cylinder 4, which is rotatably mounted on the two opposing side walls of the fixing frame 2. A winding reel 52 is fixedly mounted on the surface of the rotating column 51, and a pull rope 53 is wound on the surface of the winding reel 52. One end of the pull rope 53 away from the winding reel 52 is connected to the end of the mixing cylinder 4 away from the support rod 3. A fixed gear disc 54 is fixedly mounted on the surface of the rotating column 51. A first motor 55 is fixedly mounted on the side wall of the fixing frame 2. A transmission disc 56 located outside the fixed gear disc 54 is fixedly mounted on the output shaft of the first motor 55. An arc-shaped rack 57 is fixedly mounted on the surface of the transmission disc 56, and the rack 57 meshes with the fixed gear disc 54.

[0027] The pull rope 53 suspends and supports one end of the mixing cylinder 4. The pull rope 53 and the support rod 3 cooperate with each other to stably place the mixing cylinder 4 in the inner cavity of the fixed frame 2. During the mixing process, the first motor 55 drives the transmission disk 56 to rotate, and the transmission disk 56 drives the rack 57 to rotate synchronously. When the rack 57 contacts the fixed gear disk 54, the rack 57 and the fixed gear disk 54 mesh and drive, which can drive the rotating column 51 and the winding reel 52 to rotate in the fixed frame 2. When the winding reel 52 rotates, it winds up the pull rope 53. The winding of the pull rope 53 pulls the end of the mixing cylinder 4 away from the support rod 3 to rotate upward, thereby controlling the mixing cylinder 4 to rotate to an inclined state. The rack 57 continues to rotate. When the rack 57 separates from the fixed toothed disc 54, the rack 57 releases the driving force on the fixed toothed disc 54. At this time, the winding reel 52 and the pulling rope 53 simultaneously release the pulling force on the mixing cylinder 4. The mixing cylinder 4 rotates downward under the action of gravity. At this time, the mixing cylinder 4 rotates in the opposite direction to the inclined state.

[0028] like Figure 1 , Figure 3 , Figure 4 As shown, in a preferred embodiment of the present invention, the screening component 71 includes a horizontal cylinder 6 with multiple sets of uniformly distributed filter meshes 711 on its surface. A positioning toothed ring 712 is fixedly installed at one end of the horizontal cylinder 6. A second motor 713 is fixedly installed on the side wall of the mixing cylinder 4. The output shaft of the second motor 713 extends into the inner cavity of the mixing cylinder 4 and is fixedly installed with a transmission toothed disc 714. The transmission toothed disc 714 is meshed with the positioning toothed ring 712.

[0029] The raw materials to be mixed are fed into the horizontal cylinder 6 through the feed funnel 61. Raw material particles of the correct size pass through the filter mesh 711 and fall to the bottom of the mixing cylinder 4, while larger raw material particles cannot pass through the filter mesh 711 and are retained inside the horizontal cylinder 6. A second motor 713 drives the transmission gear disc 714 to rotate. The transmission gear disc 714 meshes with the positioning gear ring 712, which drives the horizontal cylinder 6 to rotate within the mixing cylinder 4, effectively improving the screening efficiency of the filter mesh 711. When the horizontal cylinder 6 reciprocates in a vertical plane to an inclined state, the screening efficiency of the filter mesh 711 can be further improved.

[0030] like Figure 3 , Figure 4 As shown, in a preferred embodiment of the present invention, the stirring assembly 72 includes a plurality of stirring vertical rods 721 fixedly installed on the surface of the horizontal cylinder 6 and arranged in a ring, and a plurality of stirring horizontal rods 722 arranged in parallel on the surface of the stirring vertical rods 721.

[0031] When the horizontal cylinder 6 rotates within the mixing cylinder 4, it drives the stirring vertical rod 721 and the stirring horizontal rod 722 to rotate synchronously within the mixing cylinder 4. As the stirring vertical rod 721 and the stirring horizontal rod 722 rotate at the bottom of the mixing cylinder 4, they efficiently agitate the raw materials accumulated at the bottom of the mixing cylinder 4. Simultaneously, the mixing cylinder 4 reciprocates in a vertical plane until it tilts. When the mixing cylinder 4 tilts, the raw materials accumulated at the bottom of the mixing cylinder 4 slide towards the lower side. The stirring vertical rod 721 and the stirring horizontal rod 722 agitate the sliding raw materials, further improving the mixing effect.

[0032] like Figure 3 , Figure 4 , Figure 5 As shown, in a preferred embodiment of the present invention, the material turning assembly 73 includes a bearing ring 731 rotatably mounted on the annular inner wall of the mixing cylinder 4. Multiple sets of turning plates 732 distributed in annular intervals are fixedly mounted on the inner side wall of the bearing ring 731. A transmission gear ring 733 is fixedly mounted on the inner side wall of the bearing ring 731. The transmission gear ring 733 is meshed with the transmission gear disc 714.

[0033] Raw materials passing through the filter mesh 711 fall onto the surface of the bearing ring 731. The transmission gear disc 714 meshes with the transmission gear ring 733, driving the bearing ring 731 to rotate within the mixing cylinder 4. The bearing ring 731 drives the tilting plate 732 to rotate synchronously, efficiently turning over the raw materials accumulated on the surface of the bearing ring 731. This further improves the mixing efficiency and effect of the raw materials.

[0034] like Figure 3 As shown, in a preferred embodiment of the present invention, the inner wall of the mixing cylinder 4 is provided with an annular guide groove 8, and the outer wall of the bearing ring 731 is fixedly installed with a guide ring 9, which is rotatably installed in the guide groove 8.

[0035] When the bearing ring 731 rotates inside the mixing cylinder 4, the guide ring 9 rotates synchronously in the guide groove 8. The guide ring 9 and the guide groove 8 cooperate with each other, which can further improve the stability of the bearing ring 731.

[0036] like Figure 3 , Figure 4 As shown, in a preferred embodiment of the present invention, the two inner sidewalls of the mixing cylinder 4 are respectively provided with annular grooves 10, and the two ends of the horizontal cylinder 6 are respectively rotatably installed in the annular grooves 10.

[0037] The working principle of this invention is as follows: Initially, the first sealing plug 62 seals the discharge port, and the second sealing plug 63 seals the discharge port. The raw materials to be mixed are fed into the horizontal cylinder 6 through the feed funnel 61. Raw material particles of the correct size pass through the filter mesh 711 and fall to the bottom of the mixing cylinder 4, while larger raw material particles cannot pass through the filter mesh 711 and are thus retained inside the horizontal cylinder 6. The second motor 713 drives the transmission gear disc 714 to rotate. The transmission gear disc 714 meshes with the positioning gear ring 712, which drives the horizontal cylinder 6 to rotate within the mixing cylinder 4, effectively improving the screening efficiency of the filter mesh 711 for the raw materials.

[0038] When the horizontal cylinder 6 rotates within the mixing cylinder 4, it drives the stirring vertical rod 721 and the stirring horizontal rod 722 to rotate synchronously within the mixing cylinder 4. As the stirring vertical rod 721 and the stirring horizontal rod 722 rotate at the bottom of the mixing cylinder 4, they efficiently agitate the raw materials accumulated at the bottom of the mixing cylinder 4. The transmission gear disc 714 meshes with the transmission gear ring 733, driving the bearing ring 731 to rotate within the mixing cylinder 4. The bearing ring 731 drives the tilting plate 732 to rotate synchronously, and the tilting plate 732 efficiently tilts the raw materials accumulated on the surface of the bearing ring 731. This further improves the mixing efficiency and effect of the raw materials.

[0039] During the mixing process, the first motor 55 drives the transmission disc 56 to rotate, and the transmission disc 56 drives the rack 57 to rotate synchronously. When the rack 57 contacts the fixed gear disc 54, the rack 57 and the fixed gear disc 54 mesh and drive each other, which can drive the rotating column 51 and the winding reel 52 to rotate within the fixed frame 2. When the winding reel 52 rotates, it winds up the pull rope 53. The winding rope 53 pulls the end of the mixing cylinder 4 away from the support rod 3 to rotate upward, thereby controlling the mixing cylinder 4 to rotate to an inclined state. The rack 57 continues to rotate. When the rack 57 separates from the fixed gear disc 54, the rack 57 releases the driving force on the fixed gear disc 54. At this time, the winding reel 52 and the pull rope 53 simultaneously release the pulling force on the mixing cylinder 4. The mixing cylinder 4 rotates downward under the action of gravity. At this time, the mixing cylinder 4 rotates in the opposite direction to the inclined state. The mixing cylinder 4 and the horizontal cylinder 6 reciprocate in a vertical plane to an inclined state, causing the raw materials accumulated at the bottom of the mixing cylinder 4 to slide towards the lower side. The stirring vertical rod 721 and the stirring horizontal rod 722 agitate the sliding raw materials, which can further improve the mixing effect of the raw materials. When the horizontal cylinder 6 reciprocates in a vertical plane to an inclined state, it can further improve the screening efficiency of the filter screen 711 for the raw materials.

[0040] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A raw material mixing device for producing lithium-ion battery negative electrode materials, comprising a base, wherein a fixing frame is fixedly mounted on the surface of the base, the fixing frame having an inverted U-shaped structure, characterized in that, A support rod is rotatably mounted on one side wall of the fixed frame, and a mixing cylinder is fixedly mounted on the end of the support rod away from the fixed frame. A horizontal cylinder is rotatably mounted inside the mixing cylinder. A feed funnel extending into the inner cavity of the horizontal cylinder is fixedly installed on the side wall of the mixing cylinder. A discharge port communicating with the inner cavity of the horizontal cylinder is opened on the side wall of the mixing cylinder. A first sealing plug is installed in the discharge port. A discharge port communicating with the bottom of the mixing cylinder is opened on the side wall of the mixing cylinder. A second sealing plug is installed in the discharge port. The surface of the fixed frame is provided with a suspension assembly that cooperates with the mixing cylinder. The suspension assembly is used to control the mixing cylinder to reciprocate in the vertical plane to an inclined state. The mixing cylinder is equipped with a mixing mechanism, which includes a screening component, a stirring component, and a turning component. The screening component is located on the side wall of the mixing cylinder and connected to the horizontal cylinder. The screening component filters out larger particles in the raw material by cooperating with the horizontal cylinder. The stirring assembly is located on the surface of the horizontal cylinder. The rotating horizontal cylinder and the stirring assembly work together to mix and agitate the raw materials inside the mixing cylinder. The material turning component is located on the inner annular side wall of the mixing cylinder, and is used to turn over the raw materials accumulated at the bottom of the mixing cylinder.

2. The raw material mixing device for producing lithium-ion battery anode materials according to claim 1, characterized in that, The suspension assembly includes a rotating column located above the mixing cylinder, which is rotatably mounted on both opposite side walls of a fixed frame. A winding reel is fixedly mounted on the surface of the rotating column, and a pull rope is wound on the surface of the winding reel. The end of the pull rope away from the winding reel is connected to the end of the mixing cylinder away from the support rod. A fixed gear plate is fixedly mounted on the surface of the rotating column. A first motor is fixedly mounted on the side wall of the fixed frame. A transmission disc located outside the fixed gear plate is fixedly mounted on the output shaft of the first motor. An arc-shaped rack is fixedly mounted on the surface of the transmission disc, and the rack meshes with the fixed gear plate.

3. The raw material mixing device for producing lithium-ion battery anode materials according to claim 1, characterized in that, The screening component includes a cross cylinder with multiple sets of evenly distributed filter meshes on its surface. A positioning toothed ring is fixedly installed at one end of the cross cylinder. A second motor is fixedly installed on the side wall of the mixing cylinder. The output shaft of the second motor extends into the inner cavity of the mixing cylinder and is fixedly installed with a transmission toothed disc. The transmission toothed disc is meshed with the positioning toothed ring.

4. The raw material mixing device for producing lithium-ion battery anode materials according to claim 3, characterized in that, The stirring assembly includes multiple sets of annularly distributed stirring vertical rods fixedly installed on the surface of a horizontal cylinder, and multiple sets of parallel stirring horizontal rods are provided on the surface of the stirring vertical rods.

5. The raw material mixing device for producing lithium-ion battery anode materials according to claim 3, characterized in that, The material turning assembly includes a bearing ring rotatably mounted on the annular inner wall of the mixing cylinder. Multiple sets of turning plates distributed in an annular pattern at equal intervals are fixedly installed on the inner side wall of the bearing ring. A transmission gear ring is fixedly installed on the inner side wall of the bearing ring, and the transmission gear ring meshes with a transmission gear disc.

6. The raw material mixing device for producing lithium-ion battery anode materials according to claim 5, characterized in that, The inner wall of the mixing cylinder is provided with an annular guide groove, and a guide ring is fixedly installed on the outer wall of the bearing ring. The guide ring is rotatably installed in the guide groove.

7. The raw material mixing device for producing lithium-ion battery negative electrode materials according to claim 1, characterized in that, The mixing cylinder has annular grooves on its two opposite inner sidewalls, and the two ends of the horizontal cylinder are rotatably installed in the annular grooves.

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