A reaction apparatus for preparing lithium carbonate and a method of using the same

Abstract

The application discloses a reaction device for preparing lithium carbonate and a use method thereof, and relates to the technical field of lithium carbonate preparation.The reaction device comprises a supporting base, a reaction tank is fixedly connected to the top end of the supporting base, a transmission tank is fixedly connected to the top of the reaction tank, a supporting shaft rod is rotationally connected to the middle part of the transmission tank, a carrying frame is fixedly connected to one end of the supporting shaft rod in the transmission tank, guide sliding rods are fixedly connected to the two ends of the carrying frame, displacement plates are slidingly connected to the outer sides of the guide sliding rods, an assembling frame is fixedly connected to one side of the displacement plate, a central shaft rod is rotationally connected to the bottom end of the assembling frame, and a material turning roller is fixedly connected to the outer side of the central shaft rod.The application can change the distance between the two material turning rollers by the reciprocating sliding of the hollow shaft rod, effectively reduces the stirring blind area of the material turning roller, and effectively guarantees the application effect of the material turning roller.

Description

Technical Field

[0001] This invention relates to the field of lithium carbonate preparation technology, specifically a reaction apparatus for preparing lithium carbonate and its usage method. Background Technology

[0002] Lithium-based batteries are divided into lithium batteries and lithium-ion batteries. Mobile phones and laptops use lithium-ion batteries, which are commonly referred to as lithium batteries. These batteries generally use materials containing lithium as electrodes and are representative of modern high-performance batteries.

[0003] The preparation of cathode materials for high-end lithium-ion batteries and battery-grade lithium fluoride requires the carbonization and pyrolysis purification of crude lithium carbonate into high-purity lithium carbonate. The purification process is divided into several steps in sequence, including slurry preparation, carbonization, filtration to remove impurities, thermal decomposition, sedimentation separation, centrifugal drying, and pulverization and packaging.

[0004] Currently, the carbonization process of lithium carbonate mainly involves mixing industrial-grade lithium carbonate and water in a certain proportion to form a slurry, and then stirring the slurry to react with carbon dioxide to achieve the carbonization of lithium carbonate.

[0005] However, in traditional carbonization reaction devices, the stirring of the slurry is mostly done at fixed points, resulting in a relatively fixed stirring range and a large blind zone, which in turn affects the reaction effect between the slurry and carbon dioxide.

[0006] To address these issues, the present invention provides a reaction apparatus for preparing lithium carbonate and a method for using the same. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides a reaction apparatus for preparing lithium carbonate and a method for using it, thus solving the aforementioned problems.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a reaction apparatus for preparing lithium carbonate, comprising a support base, a reaction vessel fixedly connected to the top of the support base, a transmission vessel fixedly connected to the top of the reaction vessel, a support shaft rotatably connected to the middle of the transmission vessel, a mounting frame fixedly connected to one end of the support shaft inside the transmission vessel, guide slide rods fixedly connected to both ends of the mounting frame, a displacement plate slidably connected to the outer side of the guide slide rods, an assembly frame fixedly connected to one side of the displacement plate, a central shaft rotatably connected to the bottom of the assembly frame, a turning roller fixedly connected to the outer side of the central shaft, a drive motor fixedly connected to the inner side of the assembly frame, and the output end of the drive motor fixedly connected to the central shaft, a guiding mechanism provided between the two assembly frames, and a driving mechanism mounted at the top of the transmission vessel, the driving mechanism being used to cooperate with the guiding mechanism to adjust the position of the turning roller.

[0009] Preferably, the guiding mechanism includes a hollow shaft, jet pipes, a guide plate, a guide seat, a linkage seat, and an assembly rod. The hollow shaft is slidably connected inside the supporting shaft. Multiple jet pipes are fixedly connected to one end of the hollow shaft located inside the supporting base. The guide plate is rotatably connected to the outside of the hollow shaft. Guide seats are fixedly connected to both ends of the guide plate. Linkage seats are fixedly connected to the side of the two displacement plates near the guide plate. An assembly rod is rotatably connected between the linkage seat and the guide seat.

[0010] Preferably, the driving mechanism includes a transmission frame, a transmission shaft, a guide shaft, a displacement slide rod, a pusher seat, a mating seat, a driving bevel gear, a driven bevel gear, a drive pulley, a transmission pulley, a linkage belt, and a drive motor. The transmission frame is fixedly connected to the top of the transmission tank. The transmission shaft and guide shaft are rotatably connected to the top and bottom of the inner side of the transmission frame, respectively. A displacement slide rod is fixedly connected to the top of one end of the transmission frame. A pusher seat is slidably connected to the outer side of the displacement slide rod. The hollow shaft is also rotatably connected to one end of the pusher seat. A mating seat is fixedly connected to the end of the pusher seat near the transmission shaft. A driving bevel gear is fixedly connected to one end of the guide shaft, and a driven bevel gear is fixedly connected to the outer side of the support shaft, with the driven bevel gear meshing with the driving bevel gear. A drive pulley is fixedly connected to the outer side of the guide shaft, and a drive pulley is fixedly connected to the outer side of the transmission shaft, with the drive pulley and the drive pulley connected by a linkage belt. A drive motor is fixedly connected to the top of the transmission frame, and the output end of the drive motor is fixedly connected to the transmission shaft. An eccentric transmission plate is fixedly connected to the end of the transmission shaft near the mating seat, and the bottom end of the eccentric transmission plate is slidably connected inside the mating seat.

[0011] Preferably, a plurality of turning plates are fixedly connected to the outer side of the turning roller, and a weight reduction cavity is formed inside the turning plate.

[0012] Preferably, the hollow shaft is fixedly connected to a plurality of limiting strips on its outer side, the supporting shaft has a limiting groove inside, and the limiting strips are also slidably connected inside the limiting groove.

[0013] Preferably, the bottom end of the jet pipe is fixedly connected to multiple air distribution pipes, and the bottom end of each air distribution pipe is fixedly connected to an airflow nozzle.

[0014] Preferably, the guide seat is rotatably connected to a guide rod, the linkage seat is rotatably connected to a linkage rod, and the assembly rod is fixedly connected between the guide rod and the linkage rod.

[0015] Preferably, a blocking plate is fixedly connected to the top end of the displacement slide bar, and noise reduction pads are fixedly connected to the top end of the transmission frame and the bottom end of the blocking plate.

[0016] Preferably, the bottom end of the eccentric transmission plate is fixedly connected to a linkage shaft, the interior of the mating seat is provided with a stroke groove, and the linkage shaft is movably connected inside the stroke groove.

[0017] A method for using a reaction apparatus for preparing lithium carbonate, comprising the following steps:

[0018] S1: A slurry of lithium carbonate and water is introduced into the reaction vessel, and then a carbon dioxide delivery pipe is connected to the top of the hollow shaft.

[0019] S2: The material turning roller is driven by a drive motor to react the slurry with carbon dioxide;

[0020] S3: Start the drive motor to provide rotational power to the support shaft, thereby adjusting the position of the turning roller. In conjunction with the guide mechanism, the distance between the two turning rollers can be adjusted by sliding the hollow shaft.

[0021] S4: Connecting the hollow shaft and the support shaft, it drives the jet pipe to rotate, thereby adjusting the position of the jet pipe so that the jet pipe can evenly supply carbon dioxide to the inside of the reaction vessel;

[0022] S5: Lithium carbonate carbonation is complete, and the product is discharged from the reaction vessel.

[0023] Beneficial effects

[0024] This invention provides a reaction apparatus for preparing lithium carbonate and a method for using it. Compared with the prior art, it has the following advantages:

[0025] The reaction apparatus and its method for preparing lithium carbonate, through the structural cooperation of the support shaft, the turning roller and the drive motor, can continuously agitate the slurry of lithium carbonate and water by the continuous rotation of the turning roller, so that the slurry can react with carbon dioxide.

[0026] The reaction apparatus for preparing lithium carbonate and its usage method, through the structural cooperation of the guiding mechanism, can change the distance between the two turning rollers by the reciprocating sliding of the hollow shaft, thereby effectively reducing the blind zone of the turning rollers and effectively ensuring the application effect of the turning rollers;

[0027] The reaction apparatus and its method for preparing lithium carbonate, through the structural coordination of the drive mechanism, can utilize the operation of the drive motor to simultaneously provide power for the rotation of the support shaft and the reciprocating movement of the hollow shaft, effectively reducing the overall energy consumption;

[0028] The reaction apparatus and its method for preparing lithium carbonate utilize a hollow shaft and a support shaft to rotate the hollow shaft, thereby changing the position of the jet pipe and making the carbon dioxide spray more uniform, thus ensuring the purity of the prepared lithium carbonate. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the present invention;

[0030] Figure 2 This is a schematic diagram of the internal structure of the reaction vessel of the present invention;

[0031] Figure 3 This is a schematic diagram of the connection structure between the guide slide rod and the displacement plate of the present invention;

[0032] Figure 4 This is a schematic diagram of the guiding mechanism of the present invention;

[0033] Figure 5 This is a schematic diagram of the connection structure between the hollow shaft and the support shaft in this invention;

[0034] Figure 6 This is a schematic diagram of the hollow shaft structure in this invention;

[0035] Figure 7 This is a schematic diagram of the drive mechanism of the present invention.

[0036] In the diagram: 1. Support base; 2. Reaction vessel; 3. Transmission vessel; 4. Support shaft; 5. Mounting frame; 6. Guide slide rod; 7. Displacement plate; 8. Assembly frame; 9. Central shaft; 10. Turning roller; 11. Drive motor; 12. Guiding mechanism; 13. Drive mechanism; 14. Hollow shaft; 15. Jet pipe; 16. Guide plate; 17. Guide seat; 18. Linkage seat; 19. Assembly rod; 20. Transmission frame; 21. Transmission shaft; 22. Guide shaft; 23. Displacement slide rod; 24. Push seat; 25. Mating seat; 26. Driving bevel gear; 27. Driven bevel gear; 28. Pulley; 29. ​​Transmission pulley; 30. Linkage belt; 31. Drive motor; 32. Eccentric transmission plate. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Example 1:

[0039] Please see Figure 1-7 A reaction apparatus for preparing lithium carbonate includes a support base 1, a reaction vessel 2 fixedly connected to the top of the support base 1, a transmission vessel 3 fixedly connected to the top of the reaction vessel 2, a support shaft 4 rotatably connected to the middle of the transmission vessel 3, a mounting frame 5 fixedly connected to one end of the support shaft 4 inside the transmission vessel 3, guide slide rods 6 fixedly connected to both ends of the mounting frame 5, a displacement plate 7 slidably connected to the outer side of the guide slide rod 6, an assembly frame 8 fixedly connected to one side of the displacement plate 7, a central shaft 9 rotatably connected to the bottom end of the assembly frame 8, a turning roller 10 fixedly connected to the outer side of the central shaft 9, a drive motor 11 fixedly connected to the inner side of the assembly frame 8, and the output end of the drive motor 11 fixedly connected to the central shaft 9, a guide mechanism 12 provided between the two assembly frames 8, and a drive mechanism 13 assembled at the top of the transmission vessel 3, the drive mechanism 13 being used to cooperate with the guide mechanism 12 to adjust the position of the turning roller 10;

[0040] Among them, a feeding pipe is fixedly connected to the top of the outer side of the reaction tank 2, and a sealing plug is provided at the top of the feeding pipe; a discharge pipe is fixedly connected to the bottom of the outer side of the reaction tank 2, and a manual valve is provided in the middle of the discharge pipe.

[0041] In detail, multiple turning plates are fixedly connected to the outer side of the turning roller 10, and a weight reduction cavity is opened inside the turning plate. By setting the turning plate, the contact area between the turning roller 10 and the slurry can be increased, thereby ensuring the turning effect of the turning roller 10.

[0042] The guiding mechanism 12 includes a hollow shaft 14, a jet pipe 15, a guide plate 16, a guide seat 17, a linkage seat 18, and an assembly rod 19. The hollow shaft 14 is slidably connected inside the support shaft 4. Multiple jet pipes 15 are fixedly connected to one end of the hollow shaft 14 located inside the support base 1. The guide plate 16 is rotatably connected to the outside of the hollow shaft 14. Guide seats 17 are fixedly connected to both ends of the guide plate 16. Linkage seats 18 are fixedly connected to the side of the two displacement plates 7 near the guide plate 16. The assembly rod 19 is rotatably connected between the linkage seat 18 and the guide seat 17.

[0043] The hollow shaft 14 is fixedly connected to the outside of multiple limiting strips. The support shaft 4 has a limiting groove inside, and the limiting strips are also slidably connected inside the limiting groove. By sliding the limiting strips inside the limiting groove, the hollow shaft 14 can slide stably inside the support shaft 4. When the support shaft 4 rotates, it can also drive the hollow shaft 14 to rotate.

[0044] Furthermore, multiple air distribution pipes are fixedly connected to the bottom of the jet pipe 15, and airflow nozzles are fixedly connected to the bottom of the air distribution pipes. Through the setting of the air distribution pipes, carbon dioxide inside the jet pipe 15 can be discharged from multiple places.

[0045] Here, a guide rod is rotatably connected inside the guide seat 17, and a linkage rod is rotatably connected inside the linkage seat 18. The assembly rod 19 is fixedly connected between the guide rod and the linkage rod. Through the setting of the guide rod and the linkage rod, the mounting of the assembly rod 19 can be stably formed, thereby ensuring the linkage effect of the assembly rod 19.

[0046] The drive mechanism 13 includes a transmission frame 20, a transmission shaft 21, a guide shaft 22, a displacement slide rod 23, a pusher seat 24, a mating seat 25, a driving bevel gear 26, a driven bevel gear 27, a drive pulley 28, a transmission pulley 29, a linkage belt 30, and a drive motor 31. The transmission frame 20 is fixedly connected to the top of the transmission tank 3. The transmission shaft 21 and the guide shaft 22 are rotatably connected to the top and bottom of the inner side of the transmission frame 20, respectively. The displacement slide rod 23 is fixedly connected to the top of one end of the transmission frame 20. The pusher seat 24 is slidably connected to the outer side of the displacement slide rod 23. The hollow shaft 14 is also rotatably connected to one end of the pusher seat 24. The end of the pusher seat 24 near the transmission shaft 21 is fixedly connected to a mating seat 25. The base 25 has a drive bevel gear 26 fixedly connected to one end of the guide shaft 22, a driven bevel gear 27 fixedly connected to the outer side of the support shaft 4, and the driven bevel gear 27 meshes with the drive bevel gear 26. A drive pulley 28 is fixedly connected to the outer side of the guide shaft 22, and a drive pulley 29 is fixedly connected to the outer side of the transmission shaft 21. The drive pulley 28 and the drive pulley 29 are connected by a linkage belt 30. A drive motor 31 is fixedly connected to the top of the transmission frame 20, and the output end of the drive motor 31 is fixedly connected to the transmission shaft 21. An eccentric transmission plate 32 is fixedly connected to the end of the transmission shaft 21 near the mating base 25, and the bottom end of the eccentric transmission plate 32 is slidably connected inside the mating base 25.

[0047] Preferably, a blocking plate is fixedly connected to the top of the displacement slide bar 23, and noise reduction pads are fixedly connected to the top of the transmission frame 20 and the bottom of the blocking plate. By setting the blocking plate, the stroke of the push seat 24 can be limited to prevent it from moving out of the displacement slide bar 23.

[0048] In detail, the bottom end of the eccentric transmission plate 32 is fixedly connected to a linkage shaft, and the interior of the mating seat 25 is provided with a stroke groove, and the linkage shaft is movably connected inside the stroke groove. Through the structural cooperation between the linkage shaft and the stroke groove, the linkage shaft will slide inside the stroke groove during the rotation of the eccentric transmission plate 32. In this way, the contact between the linkage shaft and the stroke groove will drive the pusher seat 24 to move.

[0049] Example 2:

[0050] Please see Figure 1-7 This embodiment discloses its usage method based on Embodiment 1: a method for using a reaction apparatus for preparing lithium carbonate, the steps of which are as follows:

[0051] S1: A slurry of lithium carbonate and water is introduced into reaction tank 2, and then a carbon dioxide delivery pipe is connected to the top of the hollow shaft 14.

[0052] More specifically, a slurry prepared by mixing industrial-grade lithium carbonate and water in a certain proportion is introduced into the interior of reaction tank 2 through a feeding pipe, and the external carbon dioxide delivery pipe is assembled to the top of the hollow shaft 14 through a rotary joint.

[0053] S2: The material turning roller 10 is driven by the drive motor 11 to make the slurry react with carbon dioxide;

[0054] Furthermore, starting the drive motor 11, in conjunction with the connection between the drive motor 11 and the central shaft 9, can drive the turning roller 10 to rotate inside the reaction tank 2, while carbon dioxide enters the jet pipe 15 through the hollow shaft 14, and is then sprayed onto the surface of the slurry through the jet pipe 15. In turn, through the contact between the rotating turning roller 10 and the slurry, the slurry can be agitated, so that it reacts with the carbon dioxide.

[0055] S3: Start the drive motor 31 to provide rotational power to the support shaft 4, thereby adjusting the position of the turning roller 10. In conjunction with the setting of the guide mechanism 12, the distance between the two turning rollers 10 can be adjusted by sliding the hollow shaft 14.

[0056] More specifically, the drive motor 31 drives the transmission shaft 21 to rotate, and through the transmission of the linkage belt 30, the power at the transmission shaft 21 can be transmitted to the guide shaft 22, thereby driving the guide shaft 22 to rotate synchronously. In conjunction with the connection between the guide shaft 22 and the active bevel gear 26, the active bevel gear 26 moves the driven bevel gear 27, thereby driving the support shaft 4 to rotate, causing the mounting frame 5 to rotate inside the support base 1, and in turn driving the turning roller 10 to revolve along the support shaft 4.

[0057] Furthermore, the connection between the transmission shaft 21 and the eccentric transmission plate 32 allows the eccentric transmission plate 32 to rotate while also moving inside the mating seat 25, thus pulling the mating seat 25. This causes the pusher seat 24 to move back and forth under the guidance of the displacement slide rod 23. With the connection between the pusher seat 24 and the hollow shaft 14, the hollow shaft 14 can follow the pusher seat 24 for adjustment. The guide seat 17 pulls the assembly rod 19, and through the linkage of the assembly rod 19, the two displacement plates 7 can move towards each other under the guidance of the guide slide rod 6, thereby changing the stirring position of the turning roller 10. This effectively reduces the stirring blind zone of the turning roller 10 and ensures the purity of lithium carbonate preparation.

[0058] S4: In conjunction with the connection between the hollow shaft 14 and the support shaft 4, the jet pipe 15 is driven to rotate, thereby adjusting the position of the jet pipe 15 so that the jet pipe 15 can uniformly supply carbon dioxide to the inside of the reaction vessel 2.

[0059] Understandably, by using the connection between the support shaft 4 and the hollow shaft 14, the hollow shaft 14 will rotate along with the support shaft 4 during rotation, thereby changing the position of the jet pipe 15 so that carbon dioxide can be sprayed evenly on the surface of the slurry.

[0060] S5: Lithium carbonate carbonation is complete, and the product is discharged from reaction vessel 2.

[0061] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0062] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0063] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reaction apparatus for preparing lithium carbonate, characterized in that: The system includes a support base (1), a reaction vessel (2) fixedly connected to the top of the support base (1), a transmission vessel (3) fixedly connected to the top of the reaction vessel (2), a support shaft (4) rotatably connected to the middle of the transmission vessel (3), a mounting frame (5) fixedly connected to one end of the support shaft (4) inside the transmission vessel (3), guide slide rods (6) fixedly connected to both ends of the mounting frame (5), a displacement plate (7) slidably connected to the outer side of the guide slide rods (6), and an assembly frame (8) fixedly connected to one side of the displacement plate (7). The bottom end of the assembly frame (8) is rotatably connected to a central shaft (9), and a turning roller (10) is fixedly connected to the outer side of the central shaft (9). A drive motor (11) is fixedly connected to the inner side of the assembly frame (8), and the output end of the drive motor (11) is fixedly connected to the central shaft (9). A guide mechanism (12) is provided between the two assembly frames (8). A drive mechanism (13) is installed at the top of the transmission tank (3). The drive mechanism (13) is used to cooperate with the guide mechanism (12) to adjust the position of the turning roller (10). The guiding mechanism (12) includes a hollow shaft (14), a jet pipe (15), a guide plate (16), a guide seat (17), a linkage seat (18), and an assembly rod (19). The hollow shaft (14) is slidably connected inside the support shaft (4). Multiple jet pipes (15) are fixedly connected to one end of the hollow shaft (14) located inside the support base (1). The guide plate (16) is rotatably connected to the outside of the hollow shaft (14). The guide seat (17) is fixedly connected to both ends of the guide plate (16). The linkage seat (18) is fixedly connected to the side of the two displacement plates (7) near the guide plate (16). The assembly rod (19) is rotatably connected between the linkage seat (18) and the guide seat (17).

2. The reaction apparatus for preparing lithium carbonate according to claim 1, characterized in that: The drive mechanism (13) includes a transmission frame (20), a transmission shaft (21), a guide shaft (22), a displacement slide rod (23), a pusher seat (24), a mating seat (25), a driving bevel gear (26), a driven bevel gear (27), a drive pulley (28), a transmission pulley (29), a linkage belt (30), and a drive motor (31). The transmission frame (20) is fixedly connected to the top of the transmission tank (3). The transmission shaft (21) and the guide shaft (22) are rotatably connected to the top and bottom of the inner side of the transmission frame (20), respectively. The displacement slide rod (23) is fixedly connected to the top of one end of the transmission frame (20). The pusher seat (24) is slidably connected to the outer side of the displacement slide rod (23). The hollow shaft rod (14) is also rotatably connected to one end of the pusher seat (24). The end of the pusher seat (24) near the transmission shaft rod (21) is fixedly connected to a mating seat. The seat (25) has a drive bevel gear (26) fixedly connected to one end of the guide shaft (22), a driven bevel gear (27) fixedly connected to the outer side of the support shaft (4), and the driven bevel gear (27) meshes with the drive bevel gear (26). A drive pulley (28) is fixedly connected to the outer side of the guide shaft (22), and a drive pulley (29) is fixedly connected to the outer side of the transmission shaft (21). The drive pulley (28) and the drive pulley (29) are connected by a linkage belt (30). A drive motor (31) is fixedly connected to the top of the transmission frame (20), and the output end of the drive motor (31) is fixedly connected to the transmission shaft (21). An eccentric transmission plate (32) is fixedly connected to the end of the transmission shaft (21) near the mating seat (25), and the bottom end of the eccentric transmission plate (32) is slidably connected inside the mating seat (25).

3. The reaction apparatus for preparing lithium carbonate according to claim 1, characterized in that: Multiple turning plates are fixedly connected to the outer side of the turning roller (10), and a weight reduction cavity is opened inside the turning plate.

4. The reaction apparatus for preparing lithium carbonate according to claim 1, characterized in that: Multiple limiting strips are fixedly connected to the outside of the hollow shaft (14), and a limiting groove is opened inside the support shaft (4), and the limiting strips are also slidably connected inside the limiting groove.

5. A reaction apparatus for preparing lithium carbonate according to claim 1, characterized in that: The bottom end of the jet pipe (15) is fixedly connected to multiple air distribution pipes, and the bottom end of the air distribution pipes is fixedly connected to an airflow nozzle.

6. A reaction apparatus for preparing lithium carbonate according to claim 2, characterized in that: The guide seat (17) is rotatably connected to a guide rod, the linkage seat (18) is rotatably connected to a linkage rod, and the assembly rod (19) is fixedly connected between the guide rod and the linkage rod.

7. A reaction apparatus for preparing lithium carbonate according to claim 2, characterized in that: The top end of the displacement slide bar (23) is fixedly connected to a blocking plate, and the top end of the transmission frame (20) and the bottom end of the blocking plate are both fixedly connected to noise reduction pads.

8. A reaction apparatus for preparing lithium carbonate according to claim 2, characterized in that: The bottom end of the eccentric transmission plate (32) is fixedly connected to a linkage shaft, and the interior of the mating seat (25) is provided with a stroke groove, and the linkage shaft is movably connected inside the stroke groove.

9. A method of using the reaction apparatus for preparing lithium carbonate as described in claim 2, characterized in that: The steps are as follows: S1: A slurry of lithium carbonate and water is introduced into the reaction vessel (2), and then the carbon dioxide delivery pipe is connected to the top of the hollow shaft (14); S2: The material turning roller (10) is driven by the drive motor (11) to make the slurry react with carbon dioxide; S3: Start the drive motor (31) to provide rotational power to the support shaft (4), thereby adjusting the position of the turning roller (10). In conjunction with the setting of the guide mechanism (12), the distance between the two turning rollers (10) can be adjusted by sliding the hollow shaft (14). S4: By connecting the hollow shaft (14) and the support shaft (4), the jet pipe (15) is driven to rotate, thereby adjusting the position of the jet pipe (15) so that the jet pipe (15) can uniformly supply carbon dioxide to the inside of the reaction vessel (2). S5: Lithium carbonate carbonation is complete, and the product is discharged from the reaction vessel (2).

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