A crushing device for lithium iron phosphate raw material

Abstract

A crushing device for lithium iron phosphate raw materials effectively solves the problem of inconvenient filter plate cleaning in existing crushing devices. It includes a main shell with a feeding pipe on the upper right side. Inside the main shell is a rotatable shaft with a front-to-back axial direction. Multiple support plates are coaxially arranged on the shaft, and multiple connecting columns are evenly arranged circumferentially on the support plates. Crushing heads are rotatably connected to the connecting columns. Arc-shaped collision plates, coaxial with the shaft, are located on the left and right sides of the inner wall of the main shell. The lower ends of the two collision plates are connected to arc-shaped filter plates, coaxial with the shaft. Multiple rows of filter holes are evenly arranged circumferentially on the filter plates. A U-shaped plate is slidably connected inside the main shell, and a moving block is slidably connected inside the U-shaped plate. A tamping column that can be inserted into the filter holes is located at the upper end of the moving block. This structure is simple, novel in design, convenient to use, and highly practical.

Description

Technical Field

[0001] This utility model relates to the field of lithium iron phosphate production technology, and in particular to a crushing device for lithium iron phosphate raw materials. Background Technology

[0002] Against the backdrop of the rapid development of the lithium-ion battery industry, lithium iron phosphate (LFP) has been widely used in power batteries and energy storage fields due to its advantages such as high safety, long cycle life, and environmental friendliness as a cathode material. In the pretreatment process of LFP raw materials, crushing is one of the key steps, and its efficiency and quality directly affect the effectiveness of subsequent processes such as pulverizing, grinding, mixing, and sintering, as well as the performance of the final product.

[0003] Currently, the most commonly used crushing equipment in the industry is the hammer crusher, which is equipped with a filter plate structure at the lower end to control the particle size distribution of the crushed material and improve the consistency of the finished product. However, in actual continuous production, crushed raw material particles tend to adhere and accumulate in the filter plate mesh, especially when processing materials with slightly high moisture content or adhesive properties, leading to frequent clogging. This not only results in a significant decrease in crushing efficiency and an increase in energy consumption, but may also cause overheating or abnormal load inside the equipment, seriously affecting the continuity and stability of production. The most common solution to this common problem in existing technologies is manual cleaning: when the equipment stops due to clogging, operators need to open the casing and use simple tools such as steel brushes and iron hooks to scrape and poke the filter plates to remove the blockages. This primitive method of unclogging is not only extremely inefficient, leading to long production interruptions, but also seriously disrupts the continuity and rhythm of production, significantly reducing the overall utilization rate of the equipment. Utility Model Content

[0004] In view of the above situation and in order to make up for the shortcomings of the existing technology, the purpose of this utility model is to provide a crushing device for lithium iron phosphate raw materials, which effectively solves the problem of inconvenient cleaning of filter plates in existing crushing devices.

[0005] The technical solution is as follows: This utility model includes a main shell, a feeding pipe is provided on the upper right side of the main shell, a rotating shaft is provided inside the main shell and is rotatable along the front and rear axis, multiple support plates are coaxially provided on the rotating shaft and are evenly distributed along the front and rear direction, multiple connecting columns are evenly distributed along their circumference on the support plates, a crushing head is rotatably connected to the connecting columns, and arc-shaped collision plates are provided on the left and right sides of the inner side wall of the main shell, which are coaxial with the rotating shaft. The lower ends of the two collision plates are connected to the arc-shaped filter plates that are coaxial with the rotating shaft. Multiple rows of filter holes are opened on the filter plates and are evenly distributed along their circumference. A U-shaped plate is slidably connected inside the main shell, and a moving block is slidably connected inside the U-shaped plate. A tamping column that can be inserted into the filter hole is provided at the upper end of the moving block.

[0006] Preferably, the front and rear side walls of the main body shell are respectively provided with arc-shaped grooves located below the filter plate and coaxial with the filter plate, and the front and rear ends of the U-shaped plate are respectively provided with sliders that are slidably connected to the arc-shaped grooves.

[0007] Preferably, the main body shell is provided with multiple upward-facing, hemispherical limiting grooves, each limiting groove corresponding to a row of filter holes. The lower end of the front slider is provided with a receiving groove, and the bottom surface of the receiving groove is connected by a spring to a limiting post that can be inserted into the limiting groove.

[0008] Preferably, the front end of the main body shell is provided with an arc-shaped sliding groove that is coaxial with the filter plate, and the front end of the main body is provided with multiple clearance grooves that correspond one-to-one with the limiting grooves and are connected to the sliding grooves, so that the moving block can slide in the sliding grooves.

[0009] Preferably, the lower end of the movable block is connected to the U-shaped plate via a tension spring.

[0010] Preferably, the moving block has a gripping post at its front end.

[0011] Preferably, the rotating shaft is rotatably connected to the main body shell, the lower end of the main body shell is provided with a mounting plate, the mounting plate is provided with a feeding groove communicating with the lower end of the main body shell, the upper end of the mounting plate is provided with a motor located on the left side of the main body shell, and the output shaft of the motor is provided with pulleys coaxially with the front end of the rotating shaft, and the two pulleys are connected by a belt.

[0012] Preferably, a baffle is hinged inside the feeding pipe.

[0013] Preferably, the collision plate is serrated.

[0014] Compared with existing technologies, the advantages of this utility model are as follows: Through the combined structure of U-shaped plate, moving block and tamping column, efficient, convenient and thorough online cleaning of filter plates is achieved without interrupting the crushing operation, overcoming the inherent drawbacks of traditional manual cleaning methods; operators can directly push the holding column without stopping the machine, driving the tamping column to accurately insert and clean the filter holes in any blocked area, ensuring the continuity of production and equipment utilization, and avoiding the negative impact of frequent start-stop on production rhythm and energy consumption; at the same time, its mechanical cleaning mechanism is direct and efficient in force transmission, effectively breaking down and removing the adhesion and clogging of fine materials in the filter holes, restoring the permeability of the filter plate more thoroughly and lastingly, reducing the frequency of cleaning, and compared with traditional manual cleaning, it is simple to operate and saves time and effort. Attached Figure Description

[0015] Figure 1 This is the main view axonometric drawing of this utility model.

[0016] Figure 2 This is a full-section main view axonometric drawing of this utility model.

[0017] Figure 3 This is a full-section left-side axonometric drawing of this utility model.

[0018] Figure 4 This is a full-section main view axonometric drawing of this utility model.

[0019] Figure 5 This is the rear-view axonometric drawing of this utility model.

[0020] Figure 6 This is a utility model Figure 4 A magnified view of A in the middle.

[0021] Figure label: 1. Main body shell; 2. Feeding pipe; 3. Rotating shaft; 4. Support plate; 5. Connecting column; 6. Crushing head; 7. Collision plate; 8. Filter plate; 9. Filter hole; 10. U-shaped plate; 11. Moving block; 12. Tamping column; 13. Arc groove; 14. Sliding block; 15. Limiting groove; 16. Receiving groove; 17. Spring; 18. Limiting column; 19. Sliding groove; 20. Relief groove; 21. Tension spring; 22. Holding column; 23. Mounting plate; 24. Motor; 25. Pulley; 26. Belt; 27. Baffle. Detailed Implementation

[0022] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the implementations of the base model disclosed below.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0025] Depend on Figures 1 to 6The device includes a main shell 1, a feeding pipe 2 located on the upper right side of the main shell 1, a rotating shaft 3 rotatable along the front-rear axis inside the main shell 1, multiple support plates 4 evenly distributed along the front-rear direction coaxially on the rotating shaft 3, multiple connecting columns 5 evenly distributed along their circumference on the support plates 4, a crushing head 6 rotatably connected to the connecting columns 5, and arc-shaped collision plates 7 coaxial with the rotating shaft 3 on the left and right sides of the inner side wall of the main shell 1, the lower ends of the two collision plates 7 are connected by an arc-shaped filter plate 8 coaxial with the rotating shaft 3, the filter plate 8 has multiple rows of filter holes 9 evenly distributed along its circumference, a U-shaped plate 10 slidably connected inside the main shell 1, a moving block 11 slidably connected inside the U-shaped plate 10, and a tamping column 12 that can be inserted into the filter hole 9 at the upper end of the moving block 11.

[0026] In order to move the U-shaped plate 10, arc-shaped grooves 13 located below the filter plate 8 and coaxial with the filter plate 8 are respectively provided on the front and rear side walls of the main body shell 1, and sliders 14 that are slidably connected to the arc-shaped grooves 13 are respectively provided at the front and rear ends of the U-shaped plate 10.

[0027] To facilitate the fixing and limiting of the U-shaped plate 10, the main body shell 1 is provided with multiple upward-facing and hemispherical limiting grooves 15. The limiting grooves 15 correspond one-to-one with multiple rows of filter holes 9. The lower end of the slider 14 on the front side is provided with a receiving groove 16. The bottom surface of the receiving groove 16 is connected by a spring 17 to a limiting post 18 that can be inserted into the limiting groove 15.

[0028] To facilitate the movement of the moving block 11, the front end of the main body shell 1 is provided with an arc-shaped sliding groove 19 that is coaxial with the filter plate 8. The front end of the main body is provided with a plurality of clearance grooves 20 that correspond one-to-one with the limiting grooves 15 and are connected to the sliding grooves 19. The moving block 11 can slide in the sliding grooves 19.

[0029] To facilitate the resetting of the movable block 11, the lower end of the movable block 11 is connected to the U-shaped plate 10 via a tension spring 21.

[0030] To facilitate gripping the movable block 11, a gripping post 22 is provided at the front end of the movable block 11.

[0031] To facilitate the rotation of the rotating shaft 3, the rotating shaft 3 is rotatably connected to the main body shell 1. The lower end of the main body shell 1 is provided with a mounting plate 23. The mounting plate 23 is provided with a feeding groove that communicates with the lower end of the main body shell 1. The upper end of the mounting plate 23 is provided with a motor 24 located to the left of the main body shell 1. The output shaft of the motor 24 is provided with pulleys 25 coaxially with the front end of the rotating shaft 3. The two pulleys 25 are connected by a belt 26.

[0032] To prevent material from spilling, a baffle 27 is hinged inside the feeding pipe 2.

[0033] For ease of use, the collision plate 7 is serrated.

[0034] When this utility model is in use, during the crushing operation, the operator first puts lithium iron phosphate raw material into the main shell 1 through the feeding pipe 2, and then starts the motor 24. The motor 24 drives the two pulleys 25 to rotate through the belt 26, which in turn drives the rotating shaft 3 and its support plate 4, connecting column 5 and crushing head 6 to rotate together to crush the raw material. The lumps of material are thrown by the crushing head 6 to hit the collision plate 7 to achieve crushing. The material particles that meet the particle size requirements are screened through the filter holes 9 on the filter plate 8 during the crushing process, and finally discharged through the discharge chute on the mounting plate 23. When the filter plate 8 becomes clogged due to material adhesion, resulting in a decrease in crushing efficiency, cleaning can be performed without stopping the machine. The operator holds the holding column 22 and moves it upward, causing the moving block 11 to slide upward against the tension of the tension spring 21 within the U-shaped plate 10. This, in turn, causes the tamping column 12 at the upper end of the moving block 11 to move upward. After moving upward a certain distance, multiple tamping columns 12 are inserted into the corresponding filter holes 9, thereby loosening and clearing the material clogged in the filter holes 9 and restoring the permeability of the filter plate 8. When the moving block 11 moves upward, it moves from the sliding groove 19 to the corresponding relief groove 20. Since the relief groove 20 corresponds one-to-one with the row of filter holes 9, the tamping column 12 can be accurately inserted into the filter hole 9. After complete cleaning, the holding column 22 is released, and the restoring force of the tension spring 21 causes the tamping column 12 to move downward to the initial position. Then, the operator holds the gripping column 22 and moves it along the slide groove 19. Consequently, the sliders 14 at the front and rear ends of the U-shaped plate 10 move along the arc groove 13 inside the main shell 1, causing the limiting column 18 to overcome the elastic force of the spring 17 and exit from the current limiting groove 15. Next, the operator pushes the moving block 11 and the U-shaped plate 10 connected to it along the arc groove 13 by holding the gripping column 22, bringing it close to the area of ​​the filter plate 8 that needs to be cleaned. When the U-shaped plate 10 moves to the target position (i.e., the limiting column 18 falls into the next corresponding limiting groove 15 under the action of the spring 17), the operator stops sliding the gripping column 22 and pulls the gripping column 22 upward again, thereby driving the tamping column 12 to move upward again and insert into the row of filter holes 9 to achieve cleaning. Then, the operator can continue to push the moving block 11 and the U-shaped plate 10 to other blocked areas and repeat the above operation until the entire filter plate 8 is cleaned. The entire process is completed while the equipment is running, effectively ensuring the continuity and stability of production.

[0035] Compared with existing technologies, the advantages of this utility model are as follows: Through the combined structure of U-shaped plate, moving block and tamping column, efficient, convenient and thorough online cleaning of filter plates is achieved without interrupting the crushing operation, overcoming the inherent drawbacks of traditional manual cleaning methods; operators can directly push the holding column without stopping the machine, driving the tamping column to accurately insert and clean the filter holes in any blocked area, ensuring the continuity of production and equipment utilization, and avoiding the negative impact of frequent start-stop on production rhythm and energy consumption; at the same time, its mechanical cleaning mechanism is direct and efficient in force transmission, effectively breaking down and removing the adhesion and clogging of fine materials in the filter holes, restoring the permeability of the filter plate more thoroughly and lastingly, reducing the frequency of cleaning, and compared with traditional manual cleaning, it is simple to operate and saves time and effort. This structure is simple, novel in concept, easy to use and highly practical.

[0036] It should be noted that, depending on the implementation needs, the various components described in the embodiments of this utility model can be split into more components, or two or more components or parts of components can be combined into new components to achieve the purpose of the embodiments of this utility model.

[0037] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A crushing device for lithium iron phosphate raw materials, comprising a main body shell (1), characterized in that, The main shell (1) is provided with a feeding pipe (2) on the upper right side. The main shell (1) is provided with a rotating shaft (3) that is rotatable in the front and rear axial direction. Multiple support plates (4) are coaxially arranged on the rotating shaft (3) and evenly distributed in the front and rear direction. Multiple connecting columns (5) are evenly distributed in the circumferential direction on the support plate (4). A crushing head (6) is rotatably connected to the connecting column (5). The inner side wall of the main shell (1) is provided with a collision plate (7) that is coaxial with the rotating shaft (3) and arc-shaped on the left and right sides respectively. The lower ends of the two collision plates (7) are connected by an arc-shaped filter plate (8) that is coaxial with the rotating shaft (3). Multiple rows of filter holes (9) are opened on the filter plate (8) and evenly distributed in the circumferential direction. A U-shaped plate (10) is slidably connected inside the main shell (1). A moving block (11) is slidably connected inside the U-shaped plate (10). A tamping column (12) that can be inserted into the filter hole (9) is provided at the upper end of the moving block (11).

2. The crushing device for lithium iron phosphate raw materials according to claim 1, characterized in that, The main body shell (1) has arc-shaped grooves (13) on its front and rear side walls, which are located below the filter plate (8) and coaxial with the filter plate (8). The front and rear ends of the U-shaped plate (10) are respectively provided with sliders (14) that are slidably connected to the arc-shaped grooves (13).

3. The crushing device for lithium iron phosphate raw materials according to claim 1, characterized in that, The main body shell (1) is provided with multiple upward-facing and hemispherical limiting grooves (15). The limiting grooves (15) correspond one-to-one with multiple rows of filter holes (9). The lower end of the slider (14) on the front side is provided with a receiving groove (16). The bottom surface of the receiving groove (16) is connected by a spring (17) to a limiting post (18) that can be inserted into the limiting groove (15).

4. The crushing device for lithium iron phosphate raw materials according to claim 1, characterized in that, The main body shell (1) has an arc-shaped sliding groove (19) that is coaxial with the filter plate (8) at the front end. The main body can have multiple clearance grooves (20) that correspond one-to-one with the limiting groove (15) and are connected to the sliding groove (19) at the front end. The moving block (11) can slide in the sliding groove (19).

5. The crushing device for lithium iron phosphate raw materials according to claim 1, characterized in that, The lower end of the movable block (11) is connected to the U-shaped plate (10) via a tension spring (21).

6. A crushing device for lithium iron phosphate feedstock according to claim 5, characterized in that, The moving block (11) is provided with a gripping post (22) at its front end.

7. The crushing device for lithium iron phosphate raw materials according to claim 1, characterized in that, The rotating shaft (3) is rotatably connected to the main body shell (1). The lower end of the main body shell (1) is provided with a mounting plate (23). The mounting plate (23) is provided with a feeding groove that communicates with the lower end of the main body shell (1). The upper end of the mounting plate (23) is provided with a motor (24) located to the left of the main body shell (1). The output shaft of the motor (24) is provided with pulleys (25) coaxially with the front end of the rotating shaft (3). The two pulleys (25) are connected by a belt (26).

8. The crushing device for lithium iron phosphate raw materials according to claim 1, characterized in that, The feed tube (2) is hinged with a baffle (27).

9. A crushing device for lithium iron phosphate raw materials according to claim 1, characterized in that, The collision plate (7) is serrated.

Images