Grinding equipment for lithium carbonate production

Abstract

The application relates to the technical field of lithium carbonate powder production and processing equipment, and discloses a grinding equipment for lithium carbonate production, which comprises a shell, a plurality of grinding rollers are arranged on the inner side of the shell, and a grinding table is arranged at the bottom of the shell. The application is characterized in that a plurality of distribution pipes are used to respectively distribute materials, so that the arranged materials are close to the center of the grinding table when being in contact with the adjacent grinding rollers without being stacked with the materials on the grinding table, the different rotating angles of the materials in contact with the grinding rollers are avoided, part of the materials is prevented from being close to the edge of the grinding table, the time of the materials staying on the grinding table is ensured, the grinding frequency is ensured, the magnetic force of the electromagnet is adjusted according to the rotating speed of the grinding table, the opening size of the shunt pipe closed by the closed plate is adjusted by cooperating with the permanent magnet and the second elastic piece, the arrangement width of the materials is adjusted, the position of the materials arranged after the opening is reduced, and the grinding quality and consistency of the materials are further improved.

Description

Technical Field

[0001] This application relates to the technical field of lithium carbonate powder production and processing equipment, and in particular to a grinding equipment for lithium carbonate production. Background Technology

[0002] Lithium carbonate is a white crystalline substance widely used in power batteries, energy storage, and medical fields. The process of extracting lithium from ore using lepidolite concentrate to produce lithium carbonate involves a series of continuous processes, including roasting, grinding, leaching, purification, and carbonation. Vertical grinding equipment is typically used for grinding lithium carbonate raw materials. Existing vertical grinding equipment includes a grinding table and grinding rollers. The grinding table is driven by a corresponding motor and a gearbox. The bottom surface of the grinding rollers is close to the top surface of the grinding table and is also driven by a corresponding motor. The lithium carbonate raw material is distributed through a feeding hopper at the center of rotation of the grinding table. Driven by the rotating grinding table, the material rotates and moves towards the edge of the grinding table under centrifugal force. Through the combined crushing and grinding by the grinding rollers and the grinding table, the grinding operation is completed. The ground material continues to move outward from the grinding table. An air ring is formed between the grinding table and the equipment shell through the air supply mechanism. At the air ring, fine powder is transported by high-speed airflow to the classifier at the top of the shell. Large particles fall at the air ring and are re-ground by scraper and elevator. Alternatively, the material is carried to the top of the shell. Qualified finished products are selected by the classifier, while unqualified large particles are mixed with new material through the feeding hopper and then re-ground.

[0003] However, in traditional vertical grinding equipment, the material placed on the grinding table is circular. The lithium carbonate raw material on the annular edge of the circle is driven by the grinding table and moves centrifugally towards the edge. Because the distance and angle between the material on the annular edge and the grinding roller are different, that is, the material on the same radius of the annular edge needs to rotate at different angles to contact the grinding roller. The material with a larger rotation angle slides a greater distance towards the edge of the grinding table when it contacts the grinding roller under centrifugal force. This causes the material at different positions on the same radius of the annular edge to contact the grinding roller at different positions. Moreover, the material with a larger angle to the grinding roller is closer to the edge of the grinding table, which reduces the time that part of the material stays on the grinding table. This results in fewer grinding cycles for some materials, affecting the grinding quality, increasing the amount of material that needs to be recycled and re-ground, and reducing the grinding efficiency of lithium carbonate raw material. Summary of the Invention

[0004] This application proposes a grinding equipment for lithium carbonate production, which has the advantages of ensuring the number of times the material contacts the grinding roller and the stability of the grinding process, thereby solving the problem of different contact times between the material and the grinding roller at different positions on the ring.

[0005] To achieve the above objectives, this application adopts the following technical solution: a grinding device for lithium carbonate production, comprising a housing, a plurality of grinding rollers arranged on the inner side of the housing, a grinding table arranged at the bottom of the housing, a feeding hopper arranged at the top of the inner side of the housing, and a diversion pipe fixedly connected to the bottom of the feeding hopper. The number of diversion pipes is set to a plurality and the number is adapted to the number of grinding rollers. The diversion pipe is used to divert and discharge the material in the feeding hopper. The diversion pipe includes an inclined guide part and a vertically arranged feeding part.

[0006] The distribution section of the diverter is offset from the center of the grinding table. The diameter and position of the distribution section are adapted to the radial distance the discharged material moves when it rotates and centrifugally to contact the adjacent grinding rollers. This ensures that the material contacts the grinding rollers on the side of the grinding rollers closest to the center of the grinding table, and that the material is staggered from the material remaining between the two adjacent grinding rollers in the circumferential direction of the grinding table. The beneficial effects of this invention are as follows:

[0007] This application provides a grinding device for lithium carbonate production. A distribution pipe directs material from the feeding hopper to several grinding rollers behind the material in the material movement direction. The material discharged through the distribution pipe rotates under the action of the grinding table and moves outwards under centrifugal force. When the material contacts the adjacent grinding roller, it is positioned on the inner side of the grinding roller closest to the grinding table. This avoids the uneven centrifugal movement distance caused by the circular feeding material when contacting the grinding rollers, ensuring the material is as close as possible to the center of the grinding table. This maximizes the time the material spends on the grinding table and increases the number of times the material contacts the grinding rollers, thereby ensuring the quality of the lithium carbonate raw material grinding. Furthermore, the spiral trajectory formed by the feeding material is staggered from the spiral trajectory of the material remaining between adjacent grinding rollers, preventing material stacking. The width of the material is within a specified range, further increasing the number of times material at the same position can contact the grinding rollers, thus improving the grinding quality and uniformity of the lithium carbonate raw material. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort:

[0009] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0010] Figure 2 This is a schematic diagram showing the rotation direction of the grinding table of the present invention;

[0011] Figure 3 This is a schematic diagram of the structure of the adjusting plate in this invention;

[0012] Figure 4 This is a schematic cross-sectional view of the connecting pipe structure of the present invention;

[0013] Figure 5 This is a schematic cross-sectional view of the structure at the adjusting plate of the present invention;

[0014] Figure 6 This is a schematic cross-sectional view of the sliding rod structure of the present invention;

[0015] Figure 7 This is a schematic cross-sectional view of the structure at the closed plate of the present invention;

[0016] Figure 8 This is a schematic cross-sectional view of the rotating disk structure of the present invention;

[0017] Figure 9 This is a schematic cross-sectional view of the sliding contact ring structure of the present invention.

[0018] In the diagram: 1-Diverter pipe, 2-Connecting pipe, 3-Feeding pipe, 4-Variable resistance mechanism, 401-Resistance rod, 402-Conductive slider, 403-First elastic element, 5-Sliding contact mechanism, 501-Sliding block, 502-Sliding ring, 6-Connecting plate, 7-Support plate, 8-Sliding rod, 9-Permanent magnet, 10-Electromagnet, 11-Second elastic element, 12-Adjusting plate, 13-Guide groove, 14-Moving plate, 15-Limiting rod, 16-Sealing plate, 17-Grinding table, 18-Grinding roller, 19-Shell, 20-Feeding hopper, 21-Reduction gearbox, 22-Motor, 23-Fixing ring, 24-Scraping plate, 25-Guide rod, 26-Guide block, 27-Rotating disk. Detailed Implementation

[0019] 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.

[0020] Example 1, as Figures 1-3A grinding device for lithium carbonate production includes a housing 19. A feeding hopper 20 is provided on the top of the inner side of the housing 19. A protrusion for supporting the feeding hopper 20 is fixedly provided on the edge of the feeding hopper 20. The protrusion is fixedly connected to the housing 19. While supporting the feeding hopper 20, the protrusion leaves a space between the feeding hopper 20 and the housing 19 for airflow. A reduction gearbox 21 is fixedly provided on the bottom of the housing 19. A grinding table 17 is rotatably connected to the top of the reduction gearbox 21. A motor 22 is fixedly provided on one side of the bottom of the housing 19. The motor 22 is driven by the input end of the reduction gearbox 21 and the output end of the reduction gearbox 21 is driven by the grinding table 17. A plurality of grinding rollers 18 are provided on the inner side of the housing 19. The grinding rollers 18 are arranged on the top of the grinding table 17. A drive mechanism corresponding to the number of grinding rollers 18 is provided in the housing 19. The drive mechanism is used to support and drive the grinding rollers 18 to rotate around their respective axes. Lithium carbonate raw material is fed into the feeding hopper 20 through the feeding mechanism of the grinding device.

[0021] The feeding hopper 20 arranges the material onto the top surface of the grinding table 17. The motor 22, in conjunction with the reduction gearbox 21, drives the grinding table 17 to rotate. The grinding table 17 drives the material to rotate. While rotating, the material moves towards the edge of the grinding table 17 under the action of centrifugal force. The material moves to the grinding roller 18 and is crushed and ground by the grinding roller 18. After being ground by multiple grinding rollers 18, the material leaves the edge of the grinding table 17. There is a space between the edge of the grinding table 17 and the shell 19 for airflow. The air supply mechanism of the equipment blows out airflow to form an air ring on the outside of the grinding table 17. The ground material is carried by the air ring to rise to the powder separation mechanism for separation. The separated unqualified material falls back into the feeding hopper 20, or the ground material is collected from the bottom outside the edge of the grinding table 17 through external circulation. The collected material is separated by another separation device, and the unqualified material is put back into the feeding hopper 20.

[0022] A diversion pipe 1 is fixedly connected to the bottom of the feeding hopper 20. The number of diversion pipes 1 is set to be several and the number is adapted to the number of grinding rollers 18. The diversion pipe 1 is used to discharge the material in the feeding hopper 20 to the rated position. See reference. Figure 2 The rotation direction of the grinding table 17 relative to the diversion pipe 1 is the direction indicated by the arrow. The rotation direction of the grinding table 17 is the forward direction of the material. The diversion pipe 1 includes an inclined guide section and a vertically arranged feeding section. The feeding section and the guide section are integrally formed. The position of the feeding section of the diversion pipe 1 is offset from the center of the grinding table 17. The diameter and position of the feeding section are adapted to the radial distance of the material when it is rotated and centrifugally moved to contact the adjacent grinding roller 18 in the forward direction.

[0023] The lithium carbonate raw material falls onto the top surface of the grinding table 17 after passing through the feed hopper 20 and the diversion pipe 1. The grinding table 17 drives the material to rotate, and the material moves towards the edge of the grinding table 17 during rotation. When the material comes into contact with the grinding rollers 18 between the two adjacent diversion pipes 1, the material is always at the small diameter end of the grinding roller 18, that is, the inner side closer to the center of the grinding table 17. Compared with the material ring formed by the traditional material arrangement, where the centrifugal movement distance of the material at different positions on the ring is different from that of the contact part with the grinding roller 18 during rotation, the position of the feed part ensures that the material can contact the grinding roller 18, thereby ensuring the number of subsequent contacts between this part of the material and the grinding roller 18, improving the uniformity of the grinding degree of the lithium carbonate raw material. The diameter of the feed part is not greater than the distance the material moves in the radial direction of the grinding table 17 during the rotation of the two adjacent grinding rollers 18, avoiding the material from piling up. At the same time, the diameter of the feed part ensures the width of the contact between the feed and the grinding roller 18, further limiting the number of contacts between the material and the grinding roller 18, thereby ensuring the grinding efficiency and quality of the lithium carbonate raw material of this equipment.

[0024] Example 2, as Figures 1-9 One end of the diverter 1 is fixedly fitted with a fixing ring 23. A connecting plate 6 is fixedly connected to one side of the fixing ring 23. A support plate 7 is fixedly connected to one side of the bottom of the connecting plate 6. Two sliding rods 8 are slidably connected to the top of the support plate 7. The two sliding rods 8 are symmetrically arranged about the center plane of the support plate 7. A permanent magnet 9 is fixedly connected between the two sliding rods 8. One end of the sliding rod 8 is T-shaped. The sliding rod 8 can slide relative to the support plate 7 without detaching from the support plate 7. An electromagnet 10 is fixedly connected to one side of the top of the support plate 7. The electromagnet 10 and the permanent magnet 9 are attracted to each other and are positioned correspondingly. A second elastic element 11 is fixedly connected to one side of the permanent magnet 9. The second elastic element 11 is set as an adjusting spring. One end of the second elastic element 11 is fixedly connected to the support plate 7.

[0025] An adjusting plate 12 is slidably sleeved at the bottom of the support plate 7. A permanent magnet 9 is used to drive the adjusting plate 12 to move. A sliding rod 8 provides guidance for the movement of the permanent magnet 9. A closing plate 16 is fixedly connected to one side of the adjusting plate 12. The closing plate 16 is used to adjust the opening degree of the diverter pipe 1. A rotating disk 27 is fixedly sleeved on the outside of the output shaft of the motor 22. A variable resistance mechanism 4 is fixedly installed on one side of the rotating disk 27. (See reference) Figure 8The variable resistance mechanism 4 includes two resistance rods 401, which are fixedly installed inside the rotating disk 27. A conductive slider 402 is slidably connected between the two resistance rods 401. The sliding direction of the conductive slider 402 is consistent with the radial direction of the rotating disk 27. That is, when the conductive slider 402 rotates around the axis of the rotating disk 27, the centrifugal force it experiences is consistent with the axial direction of the resistance rod 401. A first elastic element 403 is fixedly connected to one side of the conductive slider 402. The first elastic element 403 is preferably an insulating spring. The side of the resistance rod 401 near the edge of the rotating disk 27 is the terminal. When the conductive slider 402 slides relative to the resistance rod 401, the resistance of the resistance rod 401 connected to the circuit changes.

[0026] See Figure 9 A sliding contact mechanism 5 is provided on one side of the rotating disk 27. The sliding contact mechanism 5 includes two sliding contact rings 502 and a sliding contact block 501. The sliding contact block 501 is in contact with the corresponding sliding contact ring 502. The sliding contact ring 502 is fixedly connected to the outer wall of the gearbox 21. The sliding contact block 501 is fixedly connected to one side plane of the rotating disk 27. The sliding contact block 501 is electrically connected to the terminals of the two resistor rods 401 respectively. The two sliding contact rings 502 are connected to the electromagnet 10 in series in the circuit.

[0027] When the motor 22 adjusts the speed of the grinding table 17 as needed, the speed of the output shaft of the motor 22 changes. The output shaft of the motor 22 drives the rotating disk 27 to rotate, and the rotating disk 27 drives the conductive slider 402 to rotate, causing the first elastic element 403 to be compressed. The first elastic element 403 provides the centripetal force required for the rotation of the conductive slider 402. The change in the speed of the motor 22, the change in the speed of the rotating disk 27, and the change in the centripetal force required for the conductive slider 402 change the balance position of the conductive slider 402, which in turn slides relative to the resistance rod 401, causing the resistance value of the variable resistance mechanism 4 connected to the circuit to change. When the speed of the motor 22 increases, the length of the rod 401 connected to the circuit decreases, the resistance value decreases, and thus the current flowing through the electromagnet 10 increases. The electromagnet 10 attracts the permanent magnet 9 to overcome the elastic force of the second elastic element 11 and move. The permanent magnet 9 drives the adjustment plate 12 to move, and the adjustment plate 12 drives the closing plate 16 to move, increasing the opening area of ​​the shunt pipe 1 blocked by the closing plate 16.

[0028] The moving direction of the sealing plate 16 is consistent with the radial direction of the grinding table 17. On the one hand, when the rotation speed of the grinding table 17 increases, the outer edge of the material's cloth position moves relative to the inside of the grinding table 17 to adapt to the increased centrifugal force. This ensures that the material, even after the edge position changes, can still contact the inside of the grinding roller 18, guaranteeing consistent contact position. When the inside of the grinding roller 18 is for coarse grinding and the outside is for fine grinding, this further ensures that the material can contact both the coarse and fine grinding parts. At the same time, it keeps the material as close to the inside of the grinding table 17 as possible, ensuring that it can contact the grinding roller 18 for the rated number of times, thus improving the applicability of the grinding equipment. On the other hand, reducing the width of the cloth allows the width of the material in the radial direction to adapt to the increased centrifugal force, ensuring that the material, even after the cloth width is reduced, can still contact the grinding roller 18 for the rated number of times, further improving the reliability of the grinding device.

[0029] Example 3, as Figures 1-7 One end of the diversion pipe 1 is fixedly connected to the connecting pipe 2, which can extend and retract relative to the diversion pipe 1. The connecting pipe 2 is a flexible hose. One end of the connecting pipe 2 is fixedly connected to the discharge pipe 3, and one end of the discharge pipe 3 is fixedly connected to the wiping plate 24. The wiping plate 24 is slidably sleeved with the sealing plate 16. The bottom surface of the sealing plate 16 is flush with the bottom surface of the sealing plate 16. When the grinding table 17 rotates relative to the wiping plate 24, the wiping plate 24 cooperates with the sealing plate 16 to smooth the top surface of the material, ensuring the material arrangement height and thus ensuring the material arrangement quantity. The front and rear ends of one side of the sealing plate 16 are provided with protrusions. The protrusions are used to enable the sealing plate 16 to drive the wiping plate 24 to rise and fall without affecting the sliding of the sealing plate 16 relative to the wiping plate 24. The wiping plate 24 has a through groove in the center for material to pass through.

[0030] When the closing plate 16 slides relative to the wiping plate 24, it changes the size of the through groove, thereby adjusting the opening of the through groove. This reduces the width of the material passing through the diversion pipe 1, connecting pipe 2, and discharge pipe 3, thus indirectly adjusting the opening size of the diversion pipe 1 and completing the adjustment of the material arrangement position and width. Two limiting rods 15 are fixedly connected to the bottom of the permanent magnet 9. A moving plate 14 is fixedly connected to one side of the adjusting plate 12. The limiting rods 15 and the moving plate 14 are slidably connected. While the permanent magnet 9 drives the adjusting plate 12 to move horizontally, the adjusting plate 12 can rise and fall relative to the permanent magnet 9. The body of the adjusting plate 12 is provided with a guide groove 13. A guide block 26 is fixedly connected to the bottom of the support plate 7. The guide block 26 is embedded in the guide groove 13, which is inclined.

[0031] When the electromagnet 10 attracts the permanent magnet 9, the limiting rod 15 drives the moving plate 14 to move, the moving plate 14 drives the adjusting plate 12 to move, the guide block 26 abuts against the side wall of the guide groove 13 and pushes the adjusting plate 12 to rise, the adjusting plate 12 drives the closing plate 16 to move, so that the closing plate 16 reduces the size of the opening of the feeding pipe 3 and drives the wiping plate 24 to rise. The guide rod 25 is slidably sleeved with the fixed ring 23. The number of guide rods 25 is set to several and arranged in a ring symmetrical about the center of the fixed ring 23. The guide rods 25 guide the lifting and lowering movement of the wiping plate 24. The wiping plate 24 rises and the distance between it and the grinding table 17 increases, thereby increasing the material distribution height. When the rotation speed of the grinding table 17 increases, the material width is reduced while the material distribution height is increased, thereby ensuring the stability of the material distribution and further improving the efficiency of the equipment in grinding lithium carbonate raw materials.

[0032] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A grinding device for lithium carbonate production, comprising a shell (19), the inner side of the shell (19) is provided with a plurality of grinding rollers (18), the bottom of the shell (19) is provided with a grinding table (17), characterized in that, The top of the inside of the shell (19) is provided with a cloth hopper (20), the bottom of the cloth hopper (20) is fixedly connected with a shunt pipe (1), the number of the shunt pipe (1) is set to be several and is adapted to the number of the grinding roller (18), the shunt pipe (1) is used for shunting and discharging the material in the cloth hopper (20), and the shunt pipe (1) comprises an inclined flow guide part and a vertically arranged cloth part. The cloth part of the shunt pipe (1) is located away from the center of the grinding table (17), the diameter and position of the cloth part are adapted to the moving distance of the discharged material in the radial direction when the material moves to contact the adjacent grinding roller (18) through rotation and centrifugal movement, so that the position of the arranged material contacting the grinding roller (18) is the side of the grinding roller (18) close to the center of the grinding table (17), and the material remaining between the adjacent two grinding rollers (18) is arranged in a staggered manner in the circumferential direction of the grinding table (17). One end of the shunt pipe (1) is fixedly sleeved with a fixed ring (23), one side of the fixed ring (23) is fixedly connected with a connecting plate (6), one side of the bottom of the connecting plate (6) is fixedly connected with a supporting plate (7), the top of the supporting plate (7) is slidably connected with two sliding rods (8), the two sliding rods (8) are fixedly connected with a permanent magnet (9) therebetween, one side of the supporting plate (7) is fixedly connected with an electromagnet (10), and the electromagnet (10) and the permanent magnet (9) are attracted to each other. One side of the permanent magnet (9) is fixedly connected with a second elastic member (11), the bottom of the supporting plate (7) is slidably sleeved with an adjusting plate (12), the permanent magnet (9) is used to drive the adjusting plate (12) to move, one side of the adjusting plate (12) is fixedly connected with a closing plate (16), the closing plate (16) is used to adjust the width and position of the cloth of the shunt pipe (1), the inside of the shell (19) is provided with an adjusting mechanism, and the adjusting mechanism can adjust the current passing through the electromagnet (10) according to the rotating speed of the grinding table (17).

2. The grinding apparatus for lithium carbonate production according to claim 1, wherein The diameter of the cloth part is not greater than the moving distance of the material in the radial direction of the grinding table (17) during the rotation of the adjacent two grinding rollers (18).

3. The grinding apparatus for lithium carbonate production according to claim 1, wherein The moving direction of the closing plate (16) is consistent with the radial direction of the grinding table (17).

4. The grinding apparatus for lithium carbonate production according to claim 1, wherein One side of the bottom of the shell (19) is fixedly provided with a motor (22), the adjusting mechanism comprises a rotating disc (27), the rotating disc (27) is fixedly sleeved with the output shaft of the motor (22), one side of the rotating disc (27) is fixedly provided with a variable resistance mechanism (4), one side of the rotating disc (27) is provided with a sliding contact mechanism (5), the variable resistance mechanism (4) is connected to the circuit with the electromagnet (10) in series through the sliding contact mechanism (5), and the variable resistance mechanism (4) adjusts the resistance value of the circuit according to the rotating speed of the rotating disc (27).

5. The grinding apparatus for lithium carbonate production according to claim 4, wherein The variable resistance mechanism (4) includes two resistance rods (401), which are fixedly installed inside the rotating disk (27). A conductive slider (402) is slidably connected between the two resistance rods (401). The sliding direction of the conductive slider (402) is consistent with the radial direction of the rotating disk (27). A first elastic element (403) is fixedly connected to one side of the conductive slider (402). The side of the resistance rod (401) near the edge of the rotating disk (27) is the terminal.

6. The grinding apparatus for lithium carbonate production according to claim 4, wherein The sliding contact mechanism (5) includes two sliding contact rings (502) and a sliding contact block (501). The sliding contact block (501) is in contact with the corresponding sliding contact ring (502). The sliding contact ring (502) is fixed in position relative to the housing (19). The sliding contact block (501) is fixedly connected to the rotating disk (27). The two sliding contact rings (502) are connected to the circuit in series with the electromagnet (10).

7. The grinding apparatus for lithium carbonate production according to claim 1, wherein One end of the diversion pipe (1) is fixedly connected to a connecting pipe (2), one end of the connecting pipe (2) is fixedly connected to a discharge pipe (3), one end of the discharge pipe (3) is fixedly connected to a wiping plate (24), the wiping plate (24) is slidably sleeved with the sealing plate (16), the bottom surface of the wiping plate (24) is flush with the bottom surface of the sealing plate (16), a protruding strip is provided on one side of the sealing plate (16), and a through groove for material to pass through is opened in the center of the wiping plate (24).

8. The grinding apparatus for lithium carbonate production according to claim 7, wherein Two limiting rods (15) are fixedly connected to the bottom of the permanent magnet (9). A movable plate (14) is fixedly connected to one side of the adjusting plate (12). A guide groove (13) is opened on the body of the adjusting plate (12). A guide block (26) is fixedly connected to the bottom of the support plate (7). The guide block (26) is embedded in the guide groove (13). The guide groove (13) is inclined. A guide rod (25) is provided on the top of the smearing plate (24). The guide rod (25) is slidably sleeved with the fixing ring (23).

9. The grinding apparatus for lithium carbonate production according to claim 1, wherein The edge of the cloth hopper (20) is fixedly provided with a protrusion for supporting the cloth hopper (20). The protrusion is fixedly connected to the housing (19). A speed reduction gearbox (21) is fixedly provided at the bottom inside the housing (19). The output end of the speed reduction gearbox (21) is connected to the grinding table (17) for transmission.

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