Dry-method mixing machine for solid-state lithium battery electrode material

Abstract

The solid-state lithium battery electrode material dry-method mixing machine comprises an upper cover turnover mechanism arranged at the upper end of a rack, a mixing paddle mechanism for stirring and mixing electrode materials is arranged on the upper cover turnover mechanism, a wall scraping assembly for cleaning is arranged on the mixing paddle mechanism, a material barrel turnover mechanism is arranged at the lower end of the rack, and the material barrel turnover mechanism is arranged on the rack. A material barrel rotating mechanism is arranged on the material barrel overturning mechanism, a material barrel assembly is arranged on the material barrel rotating mechanism, and a hydraulic mechanism is arranged in the lower end of the machine frame. According to the utility model, the temperature of the material barrel assembly and the temperature of the electrode material can be accurately controlled, and the electrode material has the advantages of sufficient and uniform mixing, high mixing speed, high slurry discharging efficiency and good slurry discharging quality, so that the good quality of the finished product of the electrode material is ensured; the problem that the quality of an electrode material finished product is affected after the temperature of an electrode material exceeds a required range due to the fact that the temperature of a material barrel of a traditional mixing machine in the market is slowly increased and heat is transmitted to an electrode mixed material in the slurry or material mixing processing process is solved.

Description

Technical Field

[0001] This utility model relates to the field of mixers, and in particular to a dry mixer for solid-state lithium battery electrode materials. Background Technology

[0002] Precise temperature control is crucial for ensuring slurry quality during the production of electrode materials for solid-state lithium batteries. The electrode material mixing process involves dry-mixing active particles and conductive agents until homogeneous, followed by the addition of a binder and further mixing. During this mixing process, precise temperature control of the electrode materials is essential to facilitate the binder's bonding with other components, resulting in a fibrous effect. The vacuum environment within the mixing tank isolates the electrode materials from atmospheric contamination and prevents moisture in the air from causing agglomeration. Traditional mixers, commonly used in chemical, pharmaceutical, and feed industries, operate under ambient temperature and pressure. Furthermore, in traditional mixing equipment, the temperature of the mixing tank gradually rises during processing. As the tank temperature increases, it transfers heat to the electrode mixture. If the temperature of the electrode mixture exceeds the required range, it will negatively impact the quality of the final electrode material. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a dry mixing machine for solid lithium battery electrode materials.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: The dry mixing machine for solid-state lithium battery electrode materials includes a frame, an upper cover flipping mechanism at the upper end of the frame, a mixing paddle mechanism for stirring and mixing electrode materials on the upper cover flipping mechanism, a wall scraping component for cleaning on the mixing paddle mechanism, a material bucket flipping mechanism at the lower end of the frame, a material bucket rotating mechanism on the material bucket flipping mechanism, a material bucket assembly on the material bucket rotating mechanism, and a hydraulic mechanism inside the lower end of the frame. The composition and working principle of the hydraulic mechanism are common knowledge and will not be explained in detail here. It can use a commercially available hydraulic power mechanism of the CBGJ2100 series, model xh30955395, but is not limited thereto.

[0005] Preferably, the material bucket tilting mechanism includes a first tilting plate, a first tilting shaft at one end of the first tilting plate, the first tilting plate being connected and installed to one end of the frame via the first tilting shaft, and a first hydraulic cylinder being connected and installed on the bottom surface of the first tilting plate.

[0006] When the first hydraulic cylinder performs the telescopic movement, it can drive the first flap to rotate around the first rotating shaft. When the first hydraulic cylinder drives the first flap to rotate downward around the first rotating shaft, the first flap drives the material bucket assembly to rotate through the material bucket rotation mechanism to realize the discharge of slurry. It not only realizes automated slurry discharge, but also has the advantage of high slurry discharge efficiency.

[0007] Preferably, the material barrel rotating mechanism includes a first bearing seat fixed to a first flap plate. The inner wall of the first bearing seat is provided with a first inner ring groove and a second inner ring groove, which are arranged in parallel. The first bearing seat is provided with a first water inlet and a first water outlet. The first water inlet is connected to the first inner ring groove, and the first water outlet is connected to the second inner ring groove.

[0008] The first inner ring groove and the second inner ring groove are respectively provided with sealing ring mounting grooves on both sides, and sealing rings are installed in the sealing ring mounting grooves.

[0009] A sealing ring is used to enhance the sealing between the first bearing housing and the first rotating shaft to prevent leakage of cooling water or coolant.

[0010] The first bearing housing contains a first rotating shaft, which contains a water supply channel and a drainage channel. A first bearing is fitted onto the first rotating shaft, and the first rotating shaft can rotate freely within the first bearing housing via the first bearing.

[0011] A first motor is provided on one side of the first flap, and a reducer is provided at the output end of the first motor. The first motor is connected to one end of the first rotating shaft through the reducer. An outer barrel is provided on the other side of the first flap; the material barrel assembly is located inside the outer barrel.

[0012] Preferably, the material tank assembly includes a material tank jacket, an inner tank is installed inside the material tank jacket, and a cavity for containing coolant is provided between the material tank jacket and the inner tank. The material tank jacket is installed on the other end of the first rotating shaft. The bottom of the material tank jacket is provided with a second water inlet and a second water outlet. The water supply channel is connected to the first inner ring groove and the second water inlet, and the drainage channel is connected to the second inner ring groove and the second water outlet. The coolant enters the cavity through the first water inlet, the first inner ring groove, the water supply channel and the second water inlet in sequence. After the coolant enters the cavity and exchanges heat with the inner tank, it is discharged through the second water outlet, the drainage channel, the second inner ring groove and the first water outlet in sequence.

[0013] A first motor drives a first rotating shaft via a reducer. This rotating shaft synchronously rotates the material tank assembly, which, in conjunction with the mixing paddle mechanism, mixes the slurry within the assembly. This allows for rapid, efficient, and uniform mixing, ensuring thorough mixing. The material tank assembly employs a double-jacket design with a jacketed inner tank. Cooling fluid is supplied to the cavity between the jacket and the inner tank to precisely control the temperature of the inner tank, thereby controlling the temperature of the mixed slurry (electrode slurry). This ensures the quality of the mixed slurry and solves the problem in traditional mixers where the tank temperature gradually rises during slurry or material mixing, transferring heat to the electrode materials and causing the electrode material temperature to exceed the required range, affecting the quality of the finished electrode material.

[0014] Preferably, the top cover flipping mechanism includes a second flip plate, one end of which is provided with a second flipping shaft. The second flip plate is connected and installed to the upper end of the frame through the second flipping shaft, and a second hydraulic cylinder is connected to the bottom surface of the second flip plate.

[0015] The second hydraulic cylinder is used to extend and retract, which drives the second flap to rotate around the second rotating axis. When the second hydraulic cylinder drives the second flap to rotate upward around the second rotating axis, the second flap drives the mixing paddle mechanism to rotate upward, so that the mixing paddle mechanism is separated from the material bucket assembly. This realizes the automatic opening of the material bucket assembly, thereby improving the efficiency of discharging slurry from the material bucket assembly.

[0016] Preferably, the mixing paddle mechanism includes an upper cover mounted on the bottom surface of one end of the second flap, a scraper assembly located on the bottom surface of the upper cover, a second bearing seat penetrating the middle of the upper cover, a second rotating shaft penetrating the second bearing seat, a second bearing and a third bearing respectively installed at the upper and lower ends of the second bearing seat, the second rotating shaft rotating freely within the second bearing seat via the second and third bearings, an organic seal seat mounted on the second bearing seat, the organic seal seat containing an organic seal, a driven pulley at the upper end of the second rotating shaft, and a mixing paddle for mixing the slurry at the lower end of the second rotating shaft; the mixing paddle mechanism also includes a second motor, the output end of which has a driving pulley, and the driving pulley and the driven pulley are connected by a belt. The mixing paddle is the stirring paddle.

[0017] By adopting the above technical solution, a mechanical seal is installed inside the mechanical seal seat. Because a vacuum system is connected to the outside of the inner barrel, the electrode material inside the inner barrel, under dry mixing conditions, can have its air moisture removed through vacuum treatment. This prevents the electrode material (or slurry) from clumping inside the inner barrel and avoids atmospheric contamination of the electrode material (or slurry). A second motor drives the active pulley to rotate, which in turn drives the driven pulley to rotate via a belt. The driven pulley, through a second rotating shaft, drives the mixing paddle to rotate, thus stirring the electrode material (or slurry) inside the inner barrel, making the mixing more thorough and uniform.

[0018] Preferably, the scraping assembly includes a scraper mounting seat, on which a scraper is provided for scraping the slurry off the inner barrel wall.

[0019] By adopting the above technical solution, since the first motor can drive the material bucket assembly to rotate through the reducer and the first rotating shaft in sequence, the scraper can quickly scrape off the slurry on the inner bucket wall during the rotation of the material bucket assembly, thereby cleaning the slurry on the inner bucket wall. This improves the slurry discharge efficiency and avoids slurry waste.

[0020] Preferably, the second flap is equipped with a quick-loading feed inlet for rapid material replenishment, and the quick-loading feed inlet is equipped with a feed cover; the second flap is also equipped with a sight glass, and the sight glass is equipped with a sight glass for observing the slurry. The quick-loading feed inlet is a functional description of the feed inlet.

[0021] By adopting the above technical solution, the inner tank can be quickly replenished with materials through the quick-feed inlet, and the slurry in the inner tank can be easily observed through the sight glass, so as to adjust the batching in time and thus ensure good mixing effect of the slurry.

[0022] Preferably, the output ends of the first hydraulic cylinder and the second hydraulic cylinder are respectively connected and installed to the corresponding first flap and second flap via a third rotating shaft, and the other ends of the first hydraulic cylinder and the second hydraulic cylinder are also respectively connected and installed to the frame via a third rotating shaft.

[0023] Preferably, the cavity can be equipped with a temperature sensor as needed to achieve precise temperature control.

[0024] Preferably, an electrical control box is provided on one side of the lower end of the frame, and a control panel is provided on the electrical control box.

[0025] Preferably, the top cover tilting mechanism, mixing paddle mechanism, material bucket tilting mechanism, and material bucket rotating mechanism are electrically connected to the control box. The specific structure and working principle of the control box are well-known and will not be explained in detail here. These components are also connected to the controller or control system built into the control panel. Operators set or input various operating parameters through the control panel, and the control box controls the operation of each mechanism.

[0026] Compared with existing technologies, the beneficial effects of this utility model are as follows:

[0027] 1. By designing the structure of the material tank assembly, the material tank assembly adopts a double-layer jacket design with a material tank jacket and an inner tank. After the electrode material is mixed and the active particles and conductive agent are dry-mixed evenly, the binder is added. By circulating coolant in the cavity between the material tank jacket and the inner tank, the temperature of the electrode material can be precisely controlled, making it easier for the binder to combine with other components during the dry mixing process to form a fibrous effect. By vacuuming the inner tank, the air and moisture inside the inner tank can be removed to prevent the slurry from clumping. At the same time, it also avoids atmospheric pollution of the slurry.

[0028] 2. By designing the structures of the material barrel rotation mechanism and the mixing paddle mechanism separately, when the material barrel rotation mechanism drives the material barrel assembly to rotate and works in conjunction with the mixing paddle mechanism, it not only achieves rapid and effective mixing of slurry, but also ensures that the slurry is mixed more thoroughly, more evenly, with high mixing efficiency and good mixing effect.

[0029] 3. By using the material tank assembly in conjunction with the material tank rotation mechanism, it can precisely control the temperature of the material tank assembly and the mixed materials. This solves the problem that the temperature of the material tank in traditional mixers on the market will slowly rise during the mixing and processing of slurry or materials, and transfer heat to the electrode mixing materials, causing the temperature of the electrode materials to exceed the required range, which will affect the quality of the finished electrode materials. When the wall scraping assembly is used in conjunction with the material tank assembly and the material tank rotation mechanism, it can also automatically clean the slurry on the inner wall of the tank, so as to ensure high slurry discharge efficiency and avoid slurry waste.

[0030] 4. By designing the structure of the top cover flipping mechanism, it can automatically open the top cover of the material bucket assembly; and by designing the structure of the material bucket flipping mechanism, it can drive the first flip plate to flip downwards, thereby driving the material bucket assembly to flip synchronously to automatically pour out the slurry in the inner bucket, thus achieving automated and efficient slurry discharge. Attached Figure Description

[0031] For ease of explanation, the present invention will be described in detail below with reference to the preferred embodiments and accompanying drawings.

[0032] Figure 1 This is a perspective view of the dry mixing machine for solid-state lithium battery electrode materials according to this utility model.

[0033] Figure 2 These are perspective views of the dry mixing machine for solid-state lithium battery electrode materials of this invention from different directions.

[0034] Figure 3 This is a schematic diagram of the material barrel turning mechanism driving the material barrel rotation mechanism and the material barrel assembly turning and dumping material in the dry mixing machine for solid lithium battery electrode materials of this utility model.

[0035] Figure 4 This is a cross-sectional view of the rotating barrel mechanism and barrel assembly of the dry mixer for solid-state lithium battery electrode materials according to this utility model.

[0036] Figure 5 This is a cross-sectional view of the material barrel assembly and material barrel rotation mechanism of the dry mixing machine for solid-state lithium battery electrode materials of this utility model, without the first motor and reducer.

[0037] Figure 6 This is a right view of the disassembly hopper assembly of the dry mixer for solid-state lithium battery electrode materials according to this utility model.

[0038] Figure 7 This is a perspective view of the disassembly of the material hopper assembly in the dry mixing machine for solid-state lithium battery electrode materials according to this utility model.

[0039] Figure 8This is a cross-sectional view of the mixing paddle mechanism of the dry mixer for solid-state lithium battery electrode materials according to this utility model. Detailed Implementation

[0040] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0042] In this embodiment, refer to Figures 1 to 8 As shown, the dry mixing machine for solid lithium battery electrode materials of this utility model includes a frame 1, an upper cover flipping mechanism 2 at the upper end of the frame 1, a mixing paddle mechanism 3 for stirring and mixing electrode materials on the upper cover flipping mechanism 2, a wall scraping assembly 4 for cleaning on the mixing paddle mechanism 3, a material bucket flipping mechanism 5 at the lower end of the frame 1, a material bucket rotating mechanism 6 on the material bucket flipping mechanism 5, a material bucket assembly 7 on the material bucket rotating mechanism 6, and a hydraulic mechanism 8 inside the lower end of the frame 1.

[0043] In one embodiment, the material bucket tilting mechanism 5 includes a first tilting plate 51, one end of which is provided with a first tilting shaft 52. The first tilting plate 51 is connected and installed to one end of the frame 1 through the first tilting shaft 52. A first hydraulic cylinder 53 is connected and installed on the bottom surface of the first tilting plate 51. The first hydraulic cylinder 53 drives the first tilting plate 51 to tilt around the first tilting shaft 52.

[0044] In one embodiment, the material barrel rotating mechanism 6 includes a first bearing seat 60 fixed on a first flap 51. The inner wall of the first bearing seat 60 has a first inner ring groove 61 and a second inner ring groove 62, which are arranged in parallel. The first bearing seat 60 has a first water inlet 63 and a first water outlet 64. The first water inlet 63 communicates with the first inner ring groove 61, and the first water outlet 64 communicates with the second inner ring groove 62. Sealing ring mounting grooves 65 are respectively provided on both sides of the first inner ring groove 61 and the second inner ring groove 62, and sealing rings 66 are installed in the sealing ring mounting grooves 65. A first rotating shaft 67 is provided inside the first bearing seat 60. The first rotating shaft 67 has a water supply channel 76 and a drainage channel 77. A first bearing 68 is sleeved on the first rotating shaft 67, allowing the first rotating shaft 67 to rotate freely within the first bearing seat 60 via the first bearing 68. A first motor 69 is provided on one side of the first flap 51. A reducer 691 is provided at the output end of the first motor 69. The first motor 69 is connected to one end of the first rotating shaft 67 through the reducer 691. An outer barrel 692 is provided on the other side of the first flap 51. The material barrel assembly 7 is located inside the outer barrel 692.

[0045] In one embodiment, the tank assembly 7 includes a tank jacket 71, an inner tank 72 is installed inside the tank jacket 71, and a cavity 73 for containing coolant is provided between the tank jacket 71 and the inner tank 72. The tank jacket 71 is installed on the other end of the first rotating shaft 67, and a second water inlet 74 and a second water outlet 75 are provided at the bottom of the tank jacket 71. A water supply channel 76 connects the first inner ring groove 61 and the second water inlet 74, and a drainage channel 77 connects the second inner ring groove 62 and the second water outlet 75. The coolant enters the cavity 73 through the first water inlet 63, the first inner ring groove 61, the water supply channel 76, and the second water inlet 74 in sequence. After the coolant enters the cavity 73 and exchanges heat with the inner tank 72, it is discharged through the second water outlet 75, the drainage channel 77, the second inner ring groove 62, and the first water outlet 64 in sequence.

[0046] In one embodiment, the top cover flipping mechanism 2 includes a second flip plate 21, one end of which is provided with a second flipping shaft 22. The second flip plate 21 is connected and installed to the upper end of the frame 1 through the second flipping shaft 22. A second hydraulic cylinder 23 is connected to the bottom surface of the second flip plate 21. The second hydraulic cylinder 23 drives the second flip plate 21 to flip around the second flipping shaft 22.

[0047] In one embodiment, the mixing paddle mechanism 3 includes an upper cover 30 mounted on the bottom surface of one end of the second flap 21, a second motor 39 mounted on the other end of the second flap 21, a wall scraping assembly 4 mounted on the bottom surface of the upper cover 30, a second bearing seat 31 penetrating the middle of the upper cover 30, a second rotating shaft 32 penetrating the second bearing seat 31, a second bearing 33 and a third bearing 34 respectively mounted in the upper and lower ends of the second bearing seat 31, and the second rotating shaft 32 passing through the second bearing 33 and the third bearing 34 in the second bearing seat 31. The second motor 39 has a mechanical seal seat 35 mounted on the second bearing seat 31, and a mechanical seal 36 is provided inside the mechanical seal seat 35. The upper end of the second rotating shaft 32 is provided with a driven pulley 37, and the lower end of the second rotating shaft 32 is provided with a mixing paddle 38 for mixing slurry. The output end of the second motor 39 is provided with a driving pulley 391. The driving pulley 391 and the driven pulley 37 are connected to a belt 392. The second motor 39 drives the mixing paddle 38 to rotate to mix slurry through the driving pulley 391, the belt 392 and the driven pulley 37.

[0048] In one embodiment, the wall scraping assembly 4 includes a scraper mounting seat 41 mounted on the bottom surface of the upper cover 30, and the scraper mounting seat 41 is provided with a scraper 42 for scraping the slurry on the wall of the inner barrel 72.

[0049] In one embodiment, the second flap 21 is provided with a quick-loading feed inlet 24 for rapid material replenishment, and the quick-loading feed inlet 24 is provided with a feed cover 25; the second flap 21 is also provided with a sight glass 26, and the sight glass 26 is provided with a sight glass instrument 27 for observing the slurry.

[0050] In one embodiment, the output ends of the first hydraulic cylinder 53 and the second hydraulic cylinder 23 are respectively connected and installed to the corresponding first flap 51 and second flap 21 via the third rotating shaft 54, and the other ends of the first hydraulic cylinder 53 and the second hydraulic cylinder 23 are also respectively connected and installed to the frame 1 via the third rotating shaft 54.

[0051] In one embodiment, an electrical control box 9 is provided on one side of the lower end of the frame 1.

[0052] In one embodiment, the dry mixer for solid-state lithium battery electrode materials is controlled by an electrical control box 9. Its working principle is as follows: the hydraulic mechanism 8 provides oil pressure to the first hydraulic cylinder 53 and the second hydraulic cylinder 23. When the material to be mixed (i.e. the electrode material to be mixed) is added to the inner barrel 72 of the material barrel assembly 7, the top cover flipping mechanism 2 drives the mixing paddle mechanism 3 to flip downward, so that the top cover 30 of the mixing paddle mechanism 3 is closed with the material barrel assembly 7. The second motor 39 of the mixing paddle mechanism 3 drives the second rotating shaft 32 to rotate through the active pulley 391, the belt 392 and the driven pulley 37. The second rotating shaft 32 drives the mixing paddle 38 to rotate so as to uniformly stir the material in the material barrel assembly 7 into a slurry. The mixing paddle mechanism 3 can make the material fully and quickly mixed. The material tank assembly 7 has a cavity 73 for holding coolant between the material tank jacket 71 and the inner tank 72. Since the first water inlet 63 is connected to a pipe for supplying coolant, the coolant enters the cavity 73 through the first water inlet 63, the first inner ring groove 61, the water supply channel 76, and the second water inlet 74 of the material tank rotating mechanism 6. After the coolant in the cavity 73 exchanges heat with the inner tank 72, it is discharged through the second water outlet 75, the drainage channel 77, the second inner ring groove 62, and the first water outlet 64. This allows the material tank assembly 7 to be supplied with coolant and cooled, while also accurately controlling the temperature of the material tank assembly 7 and the mixed materials, thereby ensuring the quality of the slurry (electrode material). After the slurry is fully mixed, the top cover flipping mechanism 2 drives the mixing paddle mechanism 3 to flip upward to open the lid of the material tank assembly 7, and the material tank flipping mechanism 5 drives the material tank assembly 7 to flip downward to pour out the slurry inside.

[0053] Its overall structural design enables a series of operations for the material tank assembly 7, including automatic opening of the top cover 30, rapid material replenishment, automatic closing of the top cover 30, automatic uniform mixing, automatic cooling, automatic cleaning of the inner tank 72 wall material, and automatic tilting and pouring out of the slurry. This gives the electrode material the advantages of thorough mixing, uniform mixing, fast mixing speed, high slurry output efficiency, and good slurry quality. In addition, it can also accurately control the temperature of the material tank assembly 7 and the mixed materials, thus solving the problem that the temperature of the material tank in traditional mixers on the market will slowly rise during the mixing process of electrode materials and transfer heat to the electrode mixed materials, causing the temperature of the electrode materials to exceed the required range and affecting the quality of the finished electrode materials.

[0054] The above embodiments are merely examples of this utility model and are not intended to limit the implementation and scope of this utility model. All technical solutions that are the same as or equivalent to the contents described in the claims of this utility model should be included within the protection scope of this utility model.

Claims

1. A dry mixing machine for solid-state lithium battery electrode materials, comprising a frame, characterized in that: The upper end of the frame is equipped with a cover flipping mechanism, which is equipped with a mixing paddle mechanism for stirring and mixing electrode materials. The mixing paddle mechanism is equipped with a wall scraping component for cleaning. The lower end of the frame is equipped with a bucket flipping mechanism, which is equipped with a bucket rotation mechanism. The bucket rotation mechanism is equipped with a bucket component. The lower end of the frame is equipped with a hydraulic mechanism.

2. The dry mixer for solid-state lithium battery electrode materials according to claim 1, characterized in that: The material bucket tilting mechanism includes a first tilting plate, a first tilting shaft at one end of the first tilting plate, the first tilting plate being connected and installed to one end of the frame via the first tilting shaft, and a first hydraulic cylinder being connected and installed on the bottom surface of the first tilting plate, the first hydraulic cylinder driving the first tilting plate to tilt around the first tilting shaft. The material barrel rotating mechanism includes a first bearing seat fixed to a first flap plate. The inner wall of the first bearing seat has a first inner ring groove and a second inner ring groove, which are arranged parallel to each other. The first bearing seat has a first water inlet and a first water outlet, with the first water inlet communicating with the first inner ring groove and the first water outlet communicating with the second inner ring groove. Sealing ring mounting grooves are provided on both sides of the first and second inner ring grooves, and sealing rings are installed in the sealing ring mounting grooves. A first rotating shaft is provided inside the first bearing seat, with a water supply channel and a drainage channel inside the first rotating shaft. A first bearing is fitted onto the first rotating shaft, allowing it to rotate freely within the first bearing seat via the first bearing. A first motor is provided on one side of the first flap plate, with a reducer at the output end of the first motor. The first motor is connected to one end of the first rotating shaft via the reducer. An outer barrel is provided on the other side of the first flap plate. The material barrel assembly is located inside the outer barrel.

3. The dry mixer for solid-state lithium battery electrode materials according to claim 2, characterized in that: The material tank assembly includes a material tank jacket, an inner tank is installed inside the material tank jacket, and a cavity for containing coolant is provided between the material tank jacket and the inner tank. The material tank jacket is installed on the other end of the first rotating shaft. The bottom of the material tank jacket is provided with a second water inlet and a second water outlet. The water supply channel is connected to the first inner ring groove and the second water inlet, and the drainage channel is connected to the second inner ring groove and the second water outlet. The coolant enters the cavity through the first water inlet, the first inner ring groove, the water supply channel and the second water inlet in sequence. After the coolant enters the cavity and exchanges heat with the inner tank, it is discharged through the second water outlet, the drainage channel, the second inner ring groove and the first water outlet in sequence.

4. The dry mixer for solid-state lithium battery electrode materials according to claim 2, characterized in that: The top cover flipping mechanism includes a second flip plate, one end of which is provided with a second flipping shaft. The second flip plate is connected and installed to the upper end of the frame through the second flipping shaft. A second hydraulic cylinder is connected to the bottom surface of the second flip plate, and the second hydraulic cylinder drives the second flip plate to flip around the second flipping shaft.

5. The dry mixer for solid-state lithium battery electrode materials according to claim 1, characterized in that: The mixing paddle mechanism includes an upper cover, with the scraper assembly located on the bottom surface of the upper cover. A second bearing seat is provided through the middle of the upper cover, and a second rotating shaft is provided through the second bearing seat. A second bearing and a third bearing are respectively installed at the upper and lower ends of the second bearing seat. The second rotating shaft can rotate freely within the second bearing seat through the second bearing and the third bearing. An organic seal seat is installed on the second bearing seat, and an organic seal is provided inside the organic seal seat. A driven pulley is provided at the upper end of the second rotating shaft, and a mixing paddle for mixing slurry is provided at the lower end of the second rotating shaft. The mixing paddle mechanism also includes a second motor, with a drive pulley at the output end of the second motor. The drive pulley and the driven pulley are connected to a belt. The second motor drives the mixing paddle to rotate to mix the slurry through the drive pulley, the belt, and the driven pulley.

6. The dry mixer for solid-state lithium battery electrode materials according to claim 1, characterized in that: The wall scraping assembly includes a scraper mounting base, on which a scraper for scraping off slurry is provided.

7. The dry mixer for solid-state lithium battery electrode materials according to claim 4, characterized in that: The second flap is equipped with a quick-loading feed inlet for rapid material replenishment, and the quick-loading feed inlet is equipped with a feed cover; the second flap is also equipped with a sight glass, and the sight glass is equipped with a sight glass instrument for observing the slurry.

8. The dry mixer for solid-state lithium battery electrode materials according to claim 4, characterized in that: The output ends of the first hydraulic cylinder and the second hydraulic cylinder are respectively connected and installed to the corresponding first flap and second flap via the third rotating shaft. The other ends of the first hydraulic cylinder and the second hydraulic cylinder are also respectively connected and installed to the frame via the third rotating shaft.

9. The dry mixer for solid-state lithium battery electrode materials according to claim 1, characterized in that: An electrical control box is located on one side of the lower end of the frame.

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