Superfine pulverizer for producing hard carbon negative electrode material

Abstract

The utility model relates to the technical field of ultrafine crushers, and provides an ultrafine crusher for hard carbon cathode material production, which comprises an equipment main body, a part bin and a first driving motor, the top end of the equipment main body is provided with a feed opening, the inner wall of the equipment main body is provided with a crushing cavity, the feed opening and the crushing cavity are communicated with each other, and the first driving motor is connected with the feed opening. A first driving motor is mounted on the side wall of the equipment main body, a part bin is arranged on the outer wall of the side, away from the first driving motor, of the equipment main body, and a driving shaft of the first driving motor penetrates through the outer wall of the equipment main body, extends into the crushing cavity and is connected with a first grinding roller; one end of the first grinding roller penetrates through the outer wall of the equipment body, extends into the part bin and is movably connected with a driving gear, a driven gear is movably mounted on the side face of the driving gear through a bearing, and the problems that in the prior art, large negative electrode materials are long in smashing time and low in efficiency, and meanwhile the materials are inconvenient to clean and collect are solved.

Description

Technical Field

[0001] This utility model relates to the field of ultrafine pulverizer technology, specifically to an ultrafine pulverizer for the production of hard carbon anode materials. Background Technology

[0002] Hard carbon anode materials are widely used in lithium-ion batteries, and due to their excellent conductivity and cycle stability, they have become a popular alternative to traditional graphite anodes. Ultrafine pulverizers play a crucial role in the production of hard carbon anode materials, improving material performance and overall battery efficiency.

[0003] Patent specification CN 220610723 U discloses an ultrafine pulverizer for producing hard carbon anode materials. The pulverizer comprises a cylinder, a screening mechanism, a flow guiding mechanism, and a cleaning mechanism. The screening mechanism includes a housing containing a filter plate and a vibrator. A first feed pipe and a first motor are fixedly connected to the upper end of the housing, and a stirring rod is located at the lower end of the first motor. A first discharge pipe is fixedly connected to the lower end of the housing, and a second feed pipe is fixedly connected to the side of the cylinder. The upper end of the second feed pipe has a through hole. This structure enables the screening and crushing of unevenly sized carbonized hard carbon anode materials, avoiding repeated processing that reduces efficiency and facilitating subsequent airflow crushing. Furthermore, the internal cleaning operation prevents dust accumulation over time, which could lead to dust agglomeration and render the equipment unusable, effectively extending the equipment's lifespan.

[0004] However, in implementing the relevant technology, the above-mentioned ultrafine pulverizer for the production of hard carbon anode materials has the following problems: the device crushes by airflow, which is not effective for crushing large pieces of anode material and takes a long time. At the same time, the high-pressure air gun makes it inconvenient to thoroughly clean the inner wall of the device and collect the anode material. Therefore, we have proposed an ultrafine pulverizer for the production of hard carbon anode materials. Utility Model Content

[0005] This invention proposes an ultrafine pulverizer for the production of hard carbon anode materials, which solves the problems of long pulverization time, low efficiency, and inconvenience in cleaning and collecting materials in related technologies.

[0006] The technical solution of this utility model is as follows:

[0007] An ultrafine pulverizer for producing hard carbon anode materials includes a main body, a parts bin, and a first drive motor. The top of the main body has a feeding port, and the inner wall of the main body has a pulverizing chamber. The feeding port and the pulverizing chamber are interconnected. The first drive motor is mounted on the side wall of the main body. The parts bin is located on the outer wall of the main body away from the first drive motor. The drive shaft of the first drive motor extends through the outer wall of the main body into the pulverizing chamber and is connected to a first grinding roller. One end of the first grinding roller extends through the outer wall of the main body into the parts bin and is movably connected to a driving gear. A driven gear is movably mounted on the side of the driving gear via a bearing. The driving gear and the driven gear mesh and transmit power. One end of the drive gear extends through the outer wall of the main body of the equipment via a bearing to the interior of the crushing chamber, where it is movably connected to a first grinding roller. A feeding chamber is located below the crushing chamber, and a screening chamber is located directly below the crushing chamber. Vibrators are symmetrically arranged on the inner wall of the screening chamber, and a screen plate is installed in the screening chamber via the vibrators. A discharge chamber is located at the bottom of the screening chamber, and a collection chamber is located below the discharge chamber. A second drive motor is installed at the bottom of the screen plate, and the output shaft of the second drive motor is connected to a rotating shaft. Fans are evenly spaced on the outer wall of the rotating shaft, and a cleaning brush is installed at the bottom of the rotating shaft via a lower connecting rod. The top of the cleaning brush is connected to the rotating shaft via an upper connecting rod. Support structures are symmetrically arranged at the bottom of the main body of the equipment.

[0008] Preferably, the inner wall of the support structure is equipped with a mounting bracket, the top of the mounting bracket is equipped with a telescopic cylinder, the drive shaft of the telescopic cylinder is connected to a collection box, the two sides of the collection box are symmetrically arranged with sliders, the two sides of the collection cavity are symmetrically arranged with sliding grooves, and the collection box is movably installed on the outer wall of the collection cavity through the sliding grooves.

[0009] Preferably, one end of the slider is provided with a circular protrusion, which matches the groove.

[0010] Preferably, the collection box has a concave structure, and the inner wall of the collection box fits into the outer wall of the collection cavity.

[0011] Preferably, the cleaning brush is composed of multiple scrapers, and the discharge chamber has a conical structure that fits into the cleaning brush.

[0012] Preferably, the outer walls of the first and second grinding rollers are uniformly provided with grinding teeth, and there is a gap between the first and second grinding rollers.

[0013] Preferably, the cross-section of the feeding chamber is trapezoidal, and the feeding chamber is located directly above the discharge chamber.

[0014] Preferably, high-pressure nozzles are symmetrically arranged on the inner wall of the screening chamber, and the high-pressure nozzles are located directly below the screen plate.

[0015] The working principle and beneficial effects of this utility model are as follows:

[0016] 1. In this utility model, the carbonized hard carbon anode material is poured into the crushing chamber through the feeding port, the first drive motor, and the drive gear. The first drive motor is started, which drives the first grinding roller and the drive gear to rotate clockwise. Then, the drive gear and the driven gear mesh with each other to drive the second grinding roller to rotate counterclockwise. The material is initially crushed by the opposite rotation of the first and second grinding rollers. The crushed material falls into the screening chamber through the feeding chamber and is screened by the screen plate set on the inner wall of the feeding port to remove impurities. The vibrator is started to vibrate the screen plate violently to avoid clogging the filter holes. After the material is filtered to the bottom of the screen plate, the high-pressure nozzle and the second drive motor are started. The second drive motor drives the rotating shaft to rotate, and the rotating shaft drives the fan to rotate to generate air force to blow the anode material in the discharge chamber. The high-pressure nozzle makes the blown anode material rub and collide with each other, thereby completely crushing it. This structure can improve the crushing efficiency, make the anode material crushed more thoroughly, and remove impurities in the anode material.

[0017] 2. In this utility model, the upper connecting rod, cleaning brush, and collecting chamber are configured. The upper and lower connecting rods drive the cleaning brush to rotate, causing it to scrape against the inner wall of the discharge chamber, thus preventing the negative electrode material from adhering to the inner wall. At the same time, the conical structure of the discharge chamber allows the thoroughly crushed material to collect in the collecting chamber and fall into the collecting box. The high-pressure nozzle is activated to stretch the collecting box, and the sliding groove and slider limit the collecting box to move it away from the bottom of the collecting chamber for centralized collection. This structure facilitates cleaning of the inner wall of the device and also makes it easy to collect the crushed material. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of the main structure of the equipment proposed in this utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the main body of the equipment proposed in this utility model;

[0021] Figure 3 This is a schematic diagram of the collection box structure proposed in this utility model;

[0022] Figure 4 This is a schematic diagram of the cleaning brush structure proposed in this utility model;

[0023] Figure 5 This is a schematic diagram of the active gear structure proposed in this utility model.

[0024] In the diagram: 1. Main body of the equipment; 2. Feed port; 3. Parts bin; 4. Support structure; 5. First drive motor; 6. First grinding roller; 7. Drive gear; 8. Driven gear; 9. Second grinding roller; 10. Crushing chamber; 11. Feeding chamber; 12. Screening chamber; 13. Vibrator; 14. Screen plate; 15. High-pressure nozzle; 16. Second drive motor; 17. Rotating shaft; 18. Fan; 19. Upper connecting rod; 20. Cleaning brush; 21. Discharge chamber; 22. Collection chamber; 23. Slide chute; 24. Mounting frame; 25. Telescopic cylinder; 26. Collection box; 27. Sliding block; 28. Lower connecting rod. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0026] Example 1: As Figures 1-5 As shown, this embodiment proposes an ultrafine pulverizer for the production of hard carbon anode materials, including a main body 1, a parts bin 3, and a first drive motor 5. A feed inlet 2 is provided at the top of the main body 1, and a pulverizing chamber 10 is provided on the inner wall of the main body 1. The feed inlet 2 and the pulverizing chamber 10 are interconnected. The first drive motor 5 is installed on the side wall of the main body 1, and the parts bin 3 is provided on the outer wall of the main body 1 away from the first drive motor 5. The drive shaft of the first drive motor 5 extends through the outer wall of the main body 1 to the interior of the pulverizing chamber 10 and is connected to a first grinding roller 6. One end of the first grinding roller 6 extends through the outer wall of the main body 1 to the interior of the parts bin 3 and is movably connected to a drive gear 7. A driven gear 8 is movably installed on the side of the drive gear 7 via a bearing. The drive gear 7 and the driven gear 8 mesh and transmit power to each other. A first grinding roller 6 is movably connected to the inner wall of the main body 1 of the equipment via a bearing. A feeding chamber 11 is provided below the crushing chamber 10, and a screening chamber 12 is provided directly below the crushing chamber 10. Vibrators 13 are symmetrically arranged on the inner wall of the screening chamber 12. A screen plate 14 is installed in the screening chamber 12 via the vibrator 13. A discharge chamber 21 is provided at the bottom of the screening chamber 12. A collection chamber 22 is provided below the discharge chamber 21. A second drive motor 16 is installed at the bottom of the screen plate 14. The output shaft of the second drive motor 16 is connected to a rotating shaft 17. Fans 18 are evenly spaced on the outer wall of the rotating shaft 17. A cleaning brush 20 is installed at the bottom of the rotating shaft 17 via a lower connecting rod 28. The top of the cleaning brush 20 is connected to the rotating shaft 17 via an upper connecting rod 19. A support structure 4 is symmetrically arranged at the bottom of the main body 1 of the equipment.

[0027] In this embodiment, grinding teeth are uniformly arranged on the outer walls of the first grinding roller 6 and the second grinding roller 9, and there is a gap between the first grinding roller 6 and the second grinding roller 9.

[0028] In this embodiment, the cross-section of the feeding chamber 11 is trapezoidal, and the feeding chamber 11 is located directly above the discharge chamber 21.

[0029] In this embodiment, high-pressure nozzles 15 are symmetrically arranged on the inner wall of the screening chamber 12, and the high-pressure nozzles 15 are located directly below the sieve plate 14.

[0030] Specific examples Figure 1 , Figure 2 and Figure 5 As shown, when using this structure, the carbonized hard carbon anode material is poured into the grinding chamber 10 through the feed port 2. The first drive motor 5 is started, which drives the first grinding roller 6 and the driving gear 7 to rotate clockwise. Then, the driving gear 7 and the driven gear 8 mesh with each other to drive the second grinding roller 9 to rotate counterclockwise. The material is initially ground and crushed by the opposite rotation of the first grinding roller 6 and the second grinding roller 9. The material that has been initially crushed falls into the screening chamber 12 through the feed chamber 11 and is screened by the sieve plate 14 set on the inner wall of the feed port 2. To remove impurities, the vibrator 13 is activated to vibrate the sieve plate 14 violently to prevent clogging of the filter holes. After the material is filtered to the bottom of the sieve plate 14, the high-pressure nozzle 15 and the second drive motor 16 are activated. The second drive motor 16 drives the rotating shaft 17 to rotate, and the rotating shaft 17 drives the fan 18 to rotate to generate air force, which blows the negative electrode material inside the discharge chamber 21. The high-pressure nozzle 15 then causes the blown negative electrode material to rub and collide with each other, thereby completely crushing it. This structure can improve the crushing efficiency, make the negative electrode material crushed more thoroughly, and remove impurities from the negative electrode material.

[0031] Example 2: An installation frame 24 is installed on the inner wall of the support structure 4. A telescopic cylinder 25 is installed on the top of the installation frame 24. The drive shaft of the telescopic cylinder 25 is connected to a collection box 26. Slider blocks 27 are symmetrically arranged on both sides of the collection box 26. Slide grooves 23 are symmetrically arranged on both sides of the collection cavity 22. The collection box 26 is movably installed on the outer wall of the collection cavity 22 through the slide grooves 23.

[0032] In this embodiment, one end of the slider 27 is provided with a circular protrusion, which matches the groove 23.

[0033] In this embodiment, the collection box 26 has a concave structure, and the inner wall of the collection box 26 fits against the outer wall of the collection cavity 22.

[0034] In this embodiment, the cleaning brush 20 is composed of multiple scrapers, and the discharge chamber 21 has a conical structure that fits into the cleaning brush 20.

[0035] Specific examples Figure 1 , Figure 3 and Figure 4 As shown, when using this structure, the upper connecting rod 19 and the lower connecting rod 28 drive the cleaning brush 20 to rotate, causing it to scrape against the inner wall of the discharge chamber 21, preventing the negative electrode material from adhering to its inner wall. At the same time, the conical structure of the discharge chamber 21 allows the thoroughly crushed material to collect in the collection chamber 22 and fall into the collection box 26. The high-pressure nozzle 15 is activated to stretch the collection box 26, and the limiting effect of the sliding groove 23 and the slider 27 on the collection box 26 causes the collection box 26 to leave the bottom of the collection chamber 22 for centralized collection. This structure facilitates cleaning of the inner wall of the device and also makes it easy to collect the crushed material.

[0036] Working principle: During use, the carbonized hard carbon anode material is poured into the crushing chamber 10 through the feed port 2. The first drive motor 5 is started, which drives the first grinding roller 6 and the drive gear 7 to rotate clockwise. Then, the drive gear 7 and the driven gear 8 mesh with each other to drive the second grinding roller 9 to rotate counterclockwise. The material is initially crushed by the opposite rotation of the first grinding roller 6 and the second grinding roller 9. The material that has been initially crushed falls into the screening chamber 12 through the feed chamber 11. It is screened by the screen plate 14 set on the inner wall of the feed port 2 to remove impurities. The vibrator 13 is started to vibrate the screen plate 14 to prevent the filter holes from being blocked. After the material is filtered to the bottom of the screen plate 14, the high-pressure nozzle 15 and the second drive motor 16 are started. The second drive motor 16 drives the rotating shaft 17 to rotate. The rotating shaft 17 then drives the second grinding roller 9 to rotate counterclockwise. 7 drives the fan 18 to rotate, generating airflow that blows the negative electrode material inside the discharge chamber 21. The high-pressure nozzle 15 then causes the blown negative electrode material to rub and collide with each other, thus completely pulverizing it. Simultaneously, the upper connecting rod 19 and the lower connecting rod 28 drive the cleaning brush 20 to rotate, causing it to scrape against the inner wall of the discharge chamber 21, preventing the negative electrode material from adhering to the inner wall. At the same time, the conical structure of the discharge chamber 21 causes the completely pulverized material to collect in the collection chamber 22 and fall into the collection box 26. The high-pressure nozzle 15 is activated to stretch the collection box 26. The sliding groove 23 and the slider 27 limit the collection box 26, causing it to move away from the bottom of the collection chamber 22 for centralized collection. This device improves the pulverization efficiency by grinding the negative electrode material first, while also preventing the material from adhering to the inner wall of the device and removing impurities, making it convenient to collect the negative electrode material.

[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An ultrafine pulverizer for producing hard carbon anode materials, comprising a main body (1), a parts bin (3), and a first drive motor (5), characterized in that: The top of the main body (1) of the equipment is provided with a feeding port (2), and the inner wall of the main body (1) is provided with a crushing chamber (10). The feeding port (2) and the crushing chamber (10) are interconnected. A first drive motor (5) is installed on the side wall of the main body (1). A parts compartment (3) is provided on the outer wall of the main body (1) away from the first drive motor (5). The drive shaft of the first drive motor (5) extends through the outer wall of the main body (1) to the inside of the crushing chamber (10) and is connected to a first grinding roller (6). One end of the first grinding roller (6) extends through the outer wall of the main body (1) to the inside of the parts compartment (3) and is movably connected to a drive gear (7). A driven gear (8) is movably installed on the side of the drive gear (7) through a bearing. The drive gear (7) and the driven gear (8) mesh with each other and drive each other. One end of the drive gear (7) extends through the outer wall of the main body (1) to the inside of the crushing chamber (10) through a bearing. A first grinding roller (6) is connected to the grinding chamber (10). A feeding chamber (11) is provided below the grinding chamber (10). A screening chamber (12) is provided directly below the grinding chamber (10). Vibrators (13) are symmetrically arranged on the inner wall of the screening chamber (12). A sieve plate (14) is installed in the screening chamber (12) through the vibrators (13). A discharge chamber (21) is provided at the bottom of the screening chamber (12). A collection chamber (22) is provided below the discharge chamber (21). A second drive motor (16) is installed at the bottom of the sieve plate (14). The output shaft of the second drive motor (16) is connected to a rotating shaft (17). Fans (18) are evenly spaced on the outer wall of the rotating shaft (17). A cleaning brush (20) is installed at the bottom of the rotating shaft (17) through a lower connecting rod (28). The top of the cleaning brush (20) is connected to the rotating shaft (17) through an upper connecting rod (19). A support structure (4) is symmetrically arranged at the bottom of the main body of the equipment (1).

2. The ultrafine pulverizer for producing hard carbon anode materials according to claim 1, characterized in that, The inner wall of the support structure (4) is equipped with a mounting bracket (24), and the top of the mounting bracket (24) is equipped with a telescopic cylinder (25). The drive shaft of the telescopic cylinder (25) is connected to a collection box (26). Slider blocks (27) are symmetrically arranged on both sides of the collection box (26), and sliding grooves (23) are symmetrically arranged on both sides of the collection cavity (22). The collection box (26) is movably installed on the outer wall of the collection cavity (22) through the sliding grooves (23).

3. The ultrafine pulverizer for producing hard carbon anode materials according to claim 2, characterized in that, One end of the slider (27) is provided with a circular protrusion, which matches the groove (23).

4. The ultrafine pulverizer for producing hard carbon anode materials according to claim 2, characterized in that, The collection box (26) has a concave structure, and the inner wall of the collection box (26) is in contact with the outer wall of the collection cavity (22).

5. The ultrafine pulverizer for producing hard carbon anode materials according to claim 3, characterized in that, The cleaning brush (20) is composed of multiple scrapers, and the discharge chamber (21) has a conical structure that fits into the cleaning brush (20).

6. The ultrafine pulverizer for producing hard carbon anode materials according to claim 5, characterized in that, The outer walls of the first grinding roller (6) and the second grinding roller (9) are uniformly provided with grinding teeth blocks, and there is a gap between the first grinding roller (6) and the second grinding roller (9).

7. The ultrafine pulverizer for producing hard carbon anode materials according to claim 6, characterized in that, The cross-section of the feeding chamber (11) is trapezoidal, and the feeding chamber (11) is located directly above the discharge chamber (21).

8. The ultrafine pulverizer for producing hard carbon anode materials according to claim 5, characterized in that, The inner wall of the screening chamber (12) is symmetrically provided with high-pressure nozzles (15), which are located directly below the sieve plate (14).

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