Lithium battery positive electrode material sintering device

Abstract

The invention discloses a lithium battery positive electrode material sintering device which comprises an operation table, a sintering furnace, a sintering sagger, a support, a mounting plate and a collection box, a conveying roller is arranged on the operation table, the sintering sagger is placed on the conveying roller, a supporting column is mounted at the output end of the operation table, the support is mounted on the supporting column, and the collection box is arranged on the supporting column. A driving structure is arranged in the support, an electric telescopic rod B is mounted on the driving structure, a connecting block is mounted at one end of the electric telescopic rod B, a power shaft end of a motor A mounted in the connecting block is connected with a mounting plate, a clamping plate is arranged on the mounting plate, and an electric telescopic rod C is mounted on the supporting column. A cleaning plate is installed at one end of the electric telescopic rod C. A cleaning brush roller is arranged on the cleaning plate. By means of the mechanical discharging and cleaning process, the discharging efficiency and safety are improved, meanwhile, the labor intensity of manual cleaning is reduced, and the production efficiency of lithium battery positive electrode material sintering is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of lithium battery positive electrode material sintering device, and particularly relates to a lithium battery positive electrode material sintering device. BACKGROUND

[0002] Lithium ion battery is a new generation of green high-energy battery, which is widely used due to its high voltage, large energy density, good cycle performance, small self-discharge, no memory effect, wide working temperature range and other advantages. As a new generation of lithium ion battery positive electrode material, lithium iron phosphate has become a research hotspot due to its low price, high theoretical capacity, stable working voltage, non-toxicity, environmental protection, stable structure, good safety, good thermal stability and long cycle life. The production process of lithium ion battery includes the following steps: batching, dispersion grinding, spray drying, granulation, sintering, crushing and drying.

[0003] The existing device has the following disadvantages when in use: the traditional manual feeding method is low in efficiency, and there is a safety hazard in high-temperature environment. The positive electrode material in the sagger is prone to clumping after high-temperature sintering, and is prone to residual in the inner wall of the sagger after sintering. If not cleaned in time, it will not only cause material waste, but also affect the sintering quality of the subsequent batch of materials. Generally, the sintering sagger needs to be cleaned by manual operation, which not only increases the working strength of the operator, but also affects the efficiency of the lithium battery positive electrode material sintering. SUMMARY

[0004] The present application aims to provide a lithium battery positive electrode material sintering device to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a lithium battery positive electrode material sintering device, comprising an operation table, a sintering furnace, a sintering sagger, a support, a mounting plate and a collection box, the operation table is provided with a conveying roller, the conveying roller is placed with a sintering sagger, the output end of the operation table is provided with a support column, the support column is provided with a support, the support is provided with a driving structure, the driving structure is provided with an electric telescopic rod B, one end of the electric telescopic rod B is provided with a connecting block, the power shaft end of a motor A installed in the connecting block is connected with a mounting plate, the mounting plate is provided with a clamping plate, the support column is provided with an electric telescopic rod C, one end of the electric telescopic rod C is provided with a cleaning plate, and the cleaning plate is provided with a cleaning brush rod.

[0006] Adopting the technical scheme, after sintering is completed, the conveying roller conveys the sintering sagger out of the sintering furnace, at this time, the driving structure on the support drives the clamping plate to come above the sintering sagger, the electric telescopic rod B is started to make the clamping plate move downwards to come to the two sides of the sintering sagger, the sintering sagger is clamped and fixed through the relative movement of the two groups of clamping plates, then the electric telescopic rod B is shortened to lift the sintering sagger, the driving structure drives it to move above the collecting box. Then the motor A in the connecting block is operated to drive the mounting plate to rotate, the sintering sagger is rotated to the state that the opening faces downwards, the material in the sintering sagger is poured into the collecting box, after pouring is completed, the electric telescopic rod C is stretched to push the cleaning plate to move, at the same time, the electric telescopic rod B is stretched to drive the sintering sagger to move downwards, the cleaning brush rod is inserted into the sintering sagger to contact with the inner wall, the cleaning brush rod is driven to reciprocate in the sintering sagger through the stretching and contraction of the electric telescopic rod C, at the same time, the rotation of the cleaning brush rod is matched, the material remaining in the inner wall of the sintering sagger is cleaned, the cleaned material directly falls into the collecting box, avoiding material waste. After cleaning is completed, the electric telescopic rod B is shortened to lift the sintering sagger, the electric telescopic rod C is retracted to drive the cleaning plate to reset, the motor A is reversed to make the sintering sagger restore the state that the opening faces upwards, the driving structure sends the sintering sagger back to the conveying roller again, after the sintering sagger moves away, the same pouring and cleaning operation is carried out on the next sintering sagger. Through the mechanized pouring and cleaning process, the traditional manual operation mode is effectively replaced, the problem that manual pouring is low in efficiency and has safety hidden dangers in the high-temperature environment is avoided, the efficiency and safety of pouring are improved, the labor intensity of manual cleaning is reduced, the situation that the material remaining in the inner wall of the sagger affects the sintering quality of the subsequent batch of materials is avoided, and the production efficiency of the lithium battery positive material sintering is improved.

[0007] Preferably, the sintering furnace is provided with an electric telescopic rod A, one end of the electric telescopic rod A is provided with a limiting cover, a vibrator is installed in the operation table, and a vibration rod is installed on the vibrator.

[0008] Adopting the technical scheme, the sintering sagger containing the material is moved above the support by the conveying roller, then the electric telescopic rod A pushes the limiting cover to move downwards, the limiting cover covers the sintering sagger to limit and fix the sintering sagger, the vibrator is started to drive the vibration rod to generate high-frequency vibration, the vibration rod transmits the vibration to the sintering sagger, and the positive material in the sagger is distributed more uniformly, avoiding the influence of material accumulation on the sintering effect.

[0009] Preferably, the mounting plate is provided with a motor B, a gear is installed at the power shaft end of the motor B, the gear is engaged with a toothed plate provided in the mounting plate, and the toothed plate is connected with the clamping plate.

[0010] The above technical scheme can drive the gear to rotate forward and reversely by starting the motor B, the gear and the gear plate are meshed and transmitted, and then the gear plate drives the clamping plate to move relatively or oppositely on the mounting plate, so that the sintering pot is clamped and loosened, and the stability and reliability of the clamping process are ensured.

[0011] Preferably, the operation table is provided with a discharge tank and a sintering furnace, and the sintering furnace is provided with a sintering furnace bin and a cooling bin.

[0012] The above technical scheme is adopted, the material is quantitatively discharged into the sintering pot through the discharge tank, and then the conveying roller conveys it into the sintering furnace bin of the sintering furnace for high-temperature sintering treatment, and the sintered material enters the cooling bin with the sintering pot, and is cooled through the cooling structure arranged in the cooling bin, so that the temperature of the material is reduced to a range suitable for subsequent processing.

[0013] Preferably, the collecting box is located on the output side of the operation table.

[0014] The above technical scheme is adopted, and the collected sintered material can be conveniently transferred and processed subsequently.

[0015] Preferably, the length of the cleaning plate is adapted to the width of the sintering pot, a plurality of cleaning brush rods are uniformly arranged on the cleaning plate along the length direction of the cleaning plate, and the cleaning brush rods are connected through transmission belts.

[0016] The above technical scheme is adopted, the coordinated rotation of the plurality of cleaning brush rods can enhance the cleaning intensity and improve the cleaning efficiency, so that the residual material in each area of the inner wall of the pot can be effectively cleaned, and the cleaning effect of the inner wall of the sintering pot is further improved.

[0017] Preferably, the driving structure includes a driving motor, a lead screw and a ball nut.

[0018] The above technical scheme is adopted, the driving motor is started to rotate forward and reversely to drive the lead screw to rotate, the ball nut on the lead screw moves along the axial direction of the lead screw, and then the electric telescopic rod B connected with the ball nut and the clamping structure move integrally, so that the sintering pot is transferred between the operation table and the collecting box, and the stability and accuracy of the whole transfer process are ensured.

[0019] Compared with the prior art, the present application has the following advantages: The mechanical unloading and cleaning process effectively replaces the traditional manual operation mode, avoids the problems of low efficiency of manual unloading and safety hazards in high-temperature environment, improves the efficiency and safety of unloading, reduces the labor intensity of manual cleaning, avoids the situation that the residual material in the inner wall of the pot affects the sintering quality of the subsequent batch of materials, and improves the production efficiency of the lithium battery positive material sintering.

[0020] The conveying roller drives the sintering pot containing the material to move above the support column, and then the electric telescopic rod A drives the limiting cover to move downward, so that the limiting cover covers the sintering pot, the sintering pot is limited and fixed, the vibrator is started to drive the vibration rod to generate high-frequency vibration, the vibration rod transmits the vibration to the sintering pot, the positive electrode material in the sintering pot is distributed more uniformly, and the sintering effect is affected by the material accumulation. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a partial stereoscopic structure schematic diagram of the present application. Figure 2 It is a cross-sectional structure schematic diagram of the present application. Figure 3 It is a side end surface structure schematic diagram of the present application. Figure 4 It is an enlarged schematic diagram of the blanking structure of the present application.

[0022] Figure 5 It is a cleaning structure top view schematic diagram of the present application.

[0023] In the figure: 1, operation table; 2, conveying roller; 3, discharge tank; 4, sintering furnace; 5, sintering furnace bin; 6, cooling bin; 7, electric telescopic rod A; 8, limiting cover; 9, vibrator; 10, vibration rod; 11, sintering pot; 12, support column; 13, support; 14, driving structure; 15, electric telescopic rod B; 16, connecting block; 17, motor A; 18, mounting plate; 19, clamping plate; 20, electric telescopic rod C; 21, cleaning plate; 22, cleaning brush stick; 23, collection box; 24, motor B; 25, gear; 26, toothed plate. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments.

[0025] Please refer to Figures 1-5An embodiment of the present invention provides a lithium battery cathode material sintering device, comprising an operating table 1, a sintering furnace 4, a sintering sagger 11, a support 13, a mounting plate 18, and a collection box 23. A conveying roller 2 is provided on the operating table 1, and the sintering sagger 11 is placed on the conveying roller 2. A support column 12 is installed at the output end of the operating table 1, and the support 13 is installed on the support column 12. A drive structure 14 is provided in the support 13, and an electric telescopic rod B15 is installed on the drive structure 14. A connecting block 16 is installed at one end of the electric telescopic rod B15. The power shaft end of a motor A17 installed in the connecting block 16 is connected to the mounting plate 18. A clamping plate 19 is provided on the mounting plate 18. An electric telescopic rod C20 is installed on the support column 12, and a cleaning plate 21 is installed at one end of the electric telescopic rod C20. A cleaning brush roller 22 is provided on the cleaning plate 21. After sintering is completed, the conveying roller 2 conveys the sintering sagger 11 out of the sintering furnace 4. At this time, the drive structure 14 on the support 13 drives the clamping plate 19 to come above the sintering sagger 11. The electric telescopic rod B15 is activated to move the clamping plate 19 down to both sides of the sintering sagger 11. The sintering sagger 11 is clamped and fixed by the relative movement of the two sets of clamping plates 19. Then the electric telescopic rod B15 is shortened to lift the sintering sagger 11, and the drive structure 14 drives it to move above the collection box 23. Next, the motor A17 in the connecting block 16 drives the mounting plate 18 to rotate, causing the sintering sagger 11 to rotate so that the opening faces downwards, pouring the sintered material into the collection box 23. After the pouring is completed, the electric telescopic rod C20 extends to push the cleaning plate 21 to move, while the electric telescopic rod B15 extends to move the sintering sagger 11 downwards, so that the cleaning brush rod 22 is inserted into the sintering sagger 11 and contacts its inner wall. The extension and retraction of the electric telescopic rod C20 drives the cleaning brush rod 22 to move back and forth inside the sintering sagger 11. At the same time, in conjunction with the rotation of the cleaning brush rod 22, the material remaining on the inner wall of the sintering sagger 11 is cleaned. The cleaned material falls directly into the collection box 23 to avoid material waste. After cleaning, the electric telescopic rod B15 shortens to lift the sintering sagger 11, the electric telescopic rod C20 retracts to reset the cleaning plate 21, and the motor A17 reverses to restore the sintering sagger 11 to its open-facing position. The drive structure 14 then sends it back to the conveyor roller 2. After it is removed, the same unloading and cleaning operation is performed on the next sintering sagger 11. The mechanized unloading and cleaning process effectively replaces the traditional manual operation mode, avoiding the problems of low efficiency and safety hazards of manual unloading in high-temperature environments. It improves the efficiency and safety of unloading, while reducing the labor intensity of manual cleaning and preventing material residue on the inner wall of the sagger from affecting the sintering quality of subsequent batches of materials, thus improving the production efficiency of lithium battery cathode material sintering.

[0026] An electric telescopic rod A7 is installed on the sintering furnace 4. A limit cover 8 is installed at one end of the electric telescopic rod A7. A vibrator 9 is installed in the operating table 1. A vibrating rod 10 is installed on the vibrator 9. The conveying roller 2 moves the sintering sagger 11 containing the material to above the support column 12. Then, the electric telescopic rod A7 pushes the limit cover 8 down, so that the limit cover 8 covers the sintering sagger 11 and limits and fixes the sintering sagger 11. The vibrator 9 is activated, which drives the vibrating rod 10 to generate high-frequency vibration. The vibrating rod 10 transmits the vibration to the sintering sagger 11, which promotes a more uniform distribution of the positive electrode material in the sagger and avoids the sintering effect being affected by material accumulation.

[0027] A motor B24 is installed in the mounting plate 18. A gear 25 is installed on the power shaft end of the motor B24. The gear 25 meshes with a toothed plate 26 provided in the mounting plate 18. The toothed plate 26 is connected to the clamping plate 19. By starting the motor B24 to rotate forward and backward, the gear 25 can be driven to rotate forward and backward. The gear 25 meshes with the toothed plate 26, thereby causing the toothed plate 26 to drive the clamping plate 19 to move relative to or away from each other on the mounting plate 18, clamping and releasing the sintering sagger 11 to ensure the stability and reliability of the clamping process.

[0028] The operating platform 1 is equipped with a discharge tank 3 and a sintering furnace 4. The sintering furnace 4 is equipped with a sintering chamber 5 and a cooling chamber 6. After the material is quantitatively fed into the sintering sagger 11 through the discharge tank 3, the conveying roller 2 transports it to the sintering chamber 5 of the sintering furnace 4 for high-temperature sintering. The sintered material enters the cooling chamber 6 along with the sintering sagger 11, where it is cooled by the cooling structure to a temperature suitable for subsequent processing.

[0029] The collection box 23 is located on one side of the output end of the operating table 1. This facilitates the centralized transfer and subsequent processing of the collected sintered materials.

[0030] The length of the cleaning plate 21 is adapted to the width of the sintering sagger 11. Multiple cleaning brush rollers 22 are evenly arranged along the length of the cleaning plate 21, and these brush rollers are connected by a drive belt. The coordinated rotation of the multiple cleaning brush rollers 22 enhances the cleaning force and improves cleaning efficiency, ensuring that residual material in all areas of the sagger's inner wall is effectively cleaned, further improving the cleaning effect on the inner wall of the sintering sagger 11.

[0031] The drive structure 14 includes a drive motor, a lead screw, and a ball nut. By starting the drive motor and rotating it in both directions, the lead screw is rotated, and the ball nut on the lead screw moves along the axial direction of the lead screw. This, in turn, drives the electric telescopic rod B15 connected to the ball nut and the clamping structure to move as a whole, realizing the function of transferring the sintering sagger 11 between the operating table 1 and the collection box 23, ensuring the stability and accuracy of the entire transfer process.

[0032] The quantitative feeding of the discharge tank, the internal structure of the sintering furnace, and the conveyor roller accessories involved in this application are all existing mature technologies, with many products on the market. They are all general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional use. The content of this application does not involve improvements to the quantitative feeding of materials, the sintering structure inside the sintering furnace, or the sintering cooling method. Therefore, quantitative feeding, sintering, and cooling are not described in detail here. The motors in this application are all equipped with circuit controllers and brake structures. The circuit controller changes the direction of rotation of the motor shaft by changing the positive and negative poles of the DC motor power supply, thereby achieving the purpose of bidirectional alternating rotation of the motor shaft.

[0033] Working principle: During use, the sintering sagger 11 is placed on the conveyor roller 2 of the operating table 1. When the conveyor roller 2 moves, it moves the sintering sagger 11 to below the discharge tank 3. The discharge tank 3 injects the lithium battery positive electrode material to be sintered into the sintering sagger 11 in a metered manner. Then, the conveyor roller 2 moves the sintering sagger 11 containing the material to above the support column 12. Then, the electric telescopic rod A7 pushes the limiting cover 8 down, so that the limiting cover 8 covers the sintering sagger 11 and limits and fixes the sintering sagger 11. The vibrator 9 is started, which drives the vibrating rod 10 to generate high-frequency vibration. The vibrating rod 10 transmits the vibration to the sintering sagger 11, which promotes a more uniform distribution of the positive electrode material in the sagger and avoids the sintering effect being affected by the accumulation of material. After the material is homogenized, the electric telescopic rod A7 shortens, causing the limiting cover 8 to move upward. The conveying roller 2 transports the sintering sagger 11 to the sintering chamber 5 of the sintering furnace 4. After the material is sintered, it enters the cooling chamber 6 for cooling. After cooling, the conveying roller 2 transports the sintering sagger 11 out of the sintering furnace 4. At this time, the drive structure 14 on the bracket 13 drives the clamping plate 19 to come above the sintering sagger 11. The electric telescopic rod B15 starts, causing the clamping plate 19 to move down to both sides of the sintering sagger 11. The starting motor B24 drives the gear 25 to rotate. The gear 25 meshes with the toothed plate 26, thereby driving the clamping plate 19 to clamp and fix the sintering sagger 11. Then the electric telescopic rod B15 shortens, lifting the sintering sagger 11. The drive structure 14 drives it to move above the collection box 23. Next, the motor A17 in the connecting block 16 drives the mounting plate 18 to rotate, causing the sintering sagger 11 to rotate so that the opening faces downwards, pouring the sintered material into the collection box 23. After the pouring is completed, the electric telescopic rod C20 extends to push the cleaning plate 21 to move, while the electric telescopic rod B15 extends to move the sintering sagger 11 downwards, so that the cleaning brush rod 22 is inserted into the sintering sagger 11 and contacts its inner wall. The extension and retraction of the electric telescopic rod C20 drives the cleaning brush rod 22 to move back and forth inside the sintering sagger 11. At the same time, in conjunction with the rotation of the cleaning brush rod 22, the material remaining on the inner wall of the sintering sagger 11 is cleaned. The cleaned material falls directly into the collection box 23 to avoid material waste. After cleaning, the electric telescopic rod B15 shortens to lift the sintering sagger 11, the electric telescopic rod C20 retracts to reset the cleaning plate 21, and the motor A17 reverses to restore the sintering sagger 11 to its open-facing position. The drive structure 14 then sends it back to the conveyor roller 2. After it is removed, the same unloading and cleaning operation is performed on the next sintering sagger 11. The mechanized unloading and cleaning process effectively replaces the traditional manual operation mode, avoiding the problems of low efficiency and safety hazards of manual unloading in high-temperature environments. It improves the efficiency and safety of unloading, while reducing the labor intensity of manual cleaning and preventing material residue on the inner wall of the sagger from affecting the sintering quality of subsequent batches of materials, thus improving the production efficiency of lithium battery cathode material sintering.

[0034] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A lithium battery cathode material sintering apparatus, comprising an operating table (1), a sintering furnace (4), a sintering sagger (11), a support (13), a mounting plate (18), and a collection box (23), characterized in that: The operating table (1) is provided with a conveying roller (2), and a sintering sagger (11) is placed on the conveying roller (2). A support column (12) is installed at the output end of the operating table (1). A bracket (13) is installed on the support column (12). A drive structure (14) is provided in the bracket (13). An electric telescopic rod B (15) is installed on the drive structure (14). A connecting block (16) is installed at one end of the electric telescopic rod B (15). The power shaft end of the motor A (17) installed in the connecting block (16) is connected to the mounting plate (18). A clamping plate (19) is provided on the mounting plate (18). An electric telescopic rod C (20) is installed on the support column (12). A cleaning plate (21) is installed at one end of the electric telescopic rod C (20). A cleaning brush roller (22) is provided on the cleaning plate (21).

2. The lithium battery cathode material sintering apparatus according to claim 1, characterized in that: An electric telescopic rod A (7) is installed on the sintering furnace (4). A limit cover (8) is installed at one end of the electric telescopic rod A (7). A vibrator (9) is installed in the operating table (1). A vibrating rod (10) is installed on the vibrator (9).

3. The lithium battery cathode material sintering apparatus according to claim 1, characterized in that: The mounting plate (18) is equipped with a motor B (24), and a gear (25) is installed on the power shaft end of the motor B (24). The gear (25) meshes with a toothed plate (26) provided in the mounting plate (18), and the toothed plate (26) is connected to the clamping plate (19).

4. The lithium battery cathode material sintering apparatus according to claim 1, characterized in that: The operating platform (1) is equipped with a discharge tank (3) and a sintering furnace (4), and the sintering furnace (4) is equipped with a sintering furnace chamber (5) and a cooling chamber (6).

5. The lithium battery cathode material sintering apparatus according to claim 1, characterized in that: The collection box (23) is located on one side of the output end of the control panel (1).

6. The lithium battery cathode material sintering apparatus according to claim 1, characterized in that: The length of the cleaning plate (21) is adapted to the width of the sintering sagger (11). Multiple cleaning brush rods (22) are evenly arranged on the cleaning plate (21) along its length direction. The cleaning brush rods (22) are connected to each other by a transmission belt.

7. The lithium battery cathode material sintering apparatus according to claim 1, characterized in that: The drive structure (14) includes a drive motor, a lead screw, and a ball nut.

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