Screening mechanism for lithium battery graphite negative electrode material processing

Abstract

The utility model relates to the technical field of lithium battery graphite cathode materials, and provides a screening mechanism for processing lithium battery graphite cathode materials, which comprises a shell and a pair of stabilizing frames, the stabilizing frames are fixed on two sides of the shell, a staged treatment component is arranged in the shell, a feeding component is arranged at the top of the shell, and a transverse frame is fixed in the shell. A pair of conveying frames is fixedly connected into the shell, a conveying auger is rotationally connected into the shell, a transmission wheel is arranged at one end of the conveying auger, a driving motor is fixedly connected to the surface of the shell, and the output end of the driving motor is connected with the conveying auger. Through the technical scheme, the problems that the screened lithium battery graphite negative electrode material is difficult to take out independently, the lithium battery graphite negative electrode material is inconvenient to take out, the lithium battery graphite negative electrode material is difficult to screen in quantity, the lithium battery graphite negative electrode material is difficult to take out in the screening process, and the screening efficiency is low in the prior art are solved. And the screening efficiency of the whole structure is low, and the operation mode is tedious.

Description

Technical Field

[0001] The utility model relates to the technical field of graphite negative electrode materials for lithium batteries, and specifically relates to a screening mechanism for processing graphite negative electrode materials for lithium batteries. Background Art

[0002] Lithium battery is a kind of battery that uses lithium metal or lithium alloy as positive and negative electrode materials and non-aqueous electrolyte solution. Due to the very active chemical properties of lithium metal, the processing, storage and use of lithium metal have very high environmental requirements. With the development of science and technology, lithium batteries have become mainstream. Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium ion batteries do not contain metallic lithium and are rechargeable. The fifth generation of rechargeable batteries, lithium metal batteries, was born in 1996. Their safety, specific capacity, self-discharge rate and performance-price ratio are better than lithium ion batteries. Due to its own high technical requirements, only companies in a few countries are producing this type of lithium metal battery. Graphite electrode refers to a high-temperature resistant graphite conductive material made of petroleum coke and asphalt coke as aggregates and coal tar as binder, through raw material calcination, crushing and grinding, batching, mixing, molding, roasting, impregnation, graphitization and mechanical processing. It is called artificial graphite electrode (referred to as graphite electrode), to distinguish it from natural graphite electrode prepared from natural graphite.

[0003] When optimizing the existing screening mechanism for graphite negative electrode materials of lithium batteries, most of the optimization is reflected in the aspect of changing the internal structure of the screening mechanism. For example, the Chinese utility model patent with patent number CN202122294243.9 discloses "A device for screening and preventing blocking of graphite negative electrode materials of lithium batteries". The screen drum is driven to rotate by a first motor, and then the rotating screen drum is used to perform preliminary screening of the graphite negative electrode materials, and then the graphite negative electrode materials are screened again through the screen, and then the screen and the screen drum are driven to vibrate by the first vibration motor and the second vibration motor respectively, thereby avoiding the occurrence of graphite negative electrode materials blocking the screen holes, improving the screening efficiency, and causing the graphite negative electrode materials adhered to the screen and the screen drum to fall off, reducing the waste of resources.

[0004] Although the above-mentioned lithium battery graphite negative electrode material screening mechanism has certain advantages in changing the internal structure of the screening mechanism, it still has certain disadvantages: it is difficult to take out the screened lithium battery graphite negative electrode material separately, and it is not convenient to take out the lithium battery graphite negative electrode material, it is difficult to screen the lithium battery graphite negative electrode material in large quantities, and it is difficult to take out the lithium battery graphite negative electrode material during the screening process, the screening efficiency of the overall structure is low, and the operation method is cumbersome.

[0005] Therefore, improvements are made to address the above problems. Utility Model Content

[0006] The utility model proposes a screening mechanism for processing lithium battery graphite negative electrode materials, which solves the problems in the related art that it is difficult to take out the screened lithium battery graphite negative electrode materials separately, and it is not convenient to take out the lithium battery graphite negative electrode materials, it is difficult to screen the lithium battery graphite negative electrode materials in large quantities, and it is difficult to take out the lithium battery graphite negative electrode materials during the screening, the screening efficiency of the overall structure is low, and the operation method is cumbersome.

[0007] The technical solution of the utility model is as follows:

[0008] A housing and a pair of stabilizing frames, wherein the stabilizing frames are fixed on two sides of the housing;

[0009] a grading processing assembly, the grading processing assembly being disposed inside the housing;

[0010] A feed assembly, the feed assembly being arranged on the top of the housing;

[0011] The grading processing component includes a pair of cross frames, which are fixed inside the shell. A pair of conveying frames are fixedly connected inside the shell. A conveying auger is rotatably connected inside the shell. A transmission wheel is provided at one end of the conveying auger. A driving motor is fixedly connected to the surface of the shell, and the output end of the driving motor is connected to the conveying auger.

[0012] As a further technical solution, a pair of discharge ports are opened on the side surface of the outer shell, and the discharge ports correspond to the positions of the conveying frame. A pair of buffer springs are arranged on the upper surface of the cross frame and the bottom of the conveying frame. The upper ends of the buffer springs are connected to grading screen plates. There are two grading screen plates, and a vibration motor is fixedly connected to the surface of the grading screen plates.

[0013] As a further technical solution, a pair of centralizing covers are provided on the outer surface of the shell, and the centralizing covers are located outside the discharge port. A pair of mounting seats are fixedly connected to the side surface of the shell, and the mounting seats are located directly below the centralizing covers. A material receiving box is placed in the mounting seats.

[0014] As a further technical solution, the feeding assembly includes a plurality of brackets, the brackets are fixed on the top of the outer shell, a feeding hopper is fixedly connected between the brackets, a telescopic cylinder is fixedly connected to the side surface of the feeding hopper, and a blocking plate is connected to the output end of the telescopic cylinder.

[0015] As a further technical solution, the grading screen plate has a certain inclination angle, and the vibration motor is installed at the highest position of the grading screen plate.

[0016] As a further technical solution, the aperture of the grading sieve plate located in the upper layer is larger than that of the grading sieve plate in the lower layer, and the two grading sieve plates are inclined in opposite directions.

[0017] As a further technical solution, a sliding plate is fixedly connected inside the shell, and the sliding plate is fixed at an inclined angle.

[0018] As a further technical solution, the bottom of the shell has an external opening structure.

[0019] The working principle and beneficial effects of the utility model are:

[0020] The utility model is provided with a grading processing component. Through the interaction of structures such as a conveying frame, a conveying auger, a discharging port grading screen plate, a vibrating motor, a concentrating cover and a material receiving box, the material can be graded and screened through two grading screen plates with different apertures, and materials with different diameters can be separated. Those not filtered can be concentrated into the material receiving box. During the screening process, vibration can be maintained to speed up the screening efficiency. Materials with different apertures can be continuously separated and collected during operation without stopping the equipment, thereby achieving an efficient processing effect. The utility model has good practical effect and practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 This is the axonometric drawing of the utility model;

[0024] Figure 3 It is a cross-sectional view of the utility model;

[0025] In the figure: 1. Shell; 2. Stabilizing frame; 3. Grading processing assembly; 3-1. Horizontal frame; 3-2. Conveying frame; 3-3. Conveying auger; 3-4. Transmission wheel; 3-5. Driving motor; 3-6. Discharge port; 3-7. Buffer spring; 3-8. Grading screen plate; 3-9. Vibrating motor; 3-10. Concentrating cover; 3-11. Mounting seat; 3-12. Receiving box; 4. Feeding assembly; 4-1. Bracket; 4-2. Feeding hopper; 4-3. Telescopic cylinder; 4-4. Blocking plate; 5. Sliding plate. DETAILED DESCRIPTION

[0026] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figure 1~Figure 3As shown, this embodiment proposes a screening mechanism for processing graphite negative electrode materials for lithium batteries, including

[0028] A housing 1 and a pair of stabilizing frames 2, wherein the stabilizing frames 2 are fixed on two sides of the housing 1;

[0029] A classification processing component 3, the classification processing component 3 is arranged inside the housing 1;

[0030] A feed assembly 4, which is arranged on the top of the housing 1;

[0031] The grading processing component 3 includes a pair of cross frames 3-1, which are fixed inside the shell 1. A pair of conveying frames 3-2 are fixedly connected inside the shell 1. A conveying auger 3-3 is rotatably connected inside the shell 1. A transmission wheel 3-4 is provided at one end of the conveying auger 3-3. A driving motor 3-5 is fixedly connected to the surface of the shell 1. The output end of the driving motor 3-5 is connected to the conveying auger 3-3. A pair of discharge ports 3-6 are opened on the side surface of the shell 1. The discharge ports 3-6 correspond to the positions of the conveying frames 3-2. The upper surface of the cross frame 3-1 and A pair of buffer springs 3-7 are provided at the bottom of the conveying frame 3-2, and a grading screen plate 3-8 is connected to the upper end of the buffer spring 3-7. There are two grading screen plates 3-8, and a vibration motor 3-9 is fixedly connected to the surface of the grading screen plate 3-8. A pair of focusing covers 3-10 are provided on the outer surface of the outer shell 1, and the focusing covers 3-10 are located outside the discharge port 3-6. A pair of mounting seats 3-11 are fixedly connected to the side surface of the outer shell 1, and the mounting seats 3-11 are located directly below the focusing covers 3-10, and a material receiving box 3-12 is placed in the mounting seats 3-11.

[0032] In this embodiment, in order to achieve the effect of grading and screening the materials and discharging them separately, a grading processing component 3 is designed. Two horizontal frames 3-1 at opposite positions and different heights are arranged inside the shell 1, and a conveying frame 3-2 is arranged at the other end opposite to the horizontal frame 3-1. Buffer springs 3-7 are arranged on the surfaces of the conveying frame 3-2 and the horizontal frame 3-1. A grading screen plate 3-8 is connected to the buffer spring 3-7. A vibration motor 3-9 is arranged on the top of the grading screen plate 3-8. During the screening process, vibration can be generated by the vibration motor 3-9 to speed up the screening speed. The unscreened materials can be rolled into the conveying frame 3-2. A conveying auger 3-3 is arranged inside the conveying frame 3-2. One of the two conveying auger 3-3s Both ends are provided with transmission wheels 3-4 and are connected by belt transmission. A driving motor 3-5 is also provided and is connected to one of the conveying augers 3-3. The two conveying augers 3-3 can be driven by the transmission wheel 3-4 and the belt to make the two conveying augers 3-3 rotate synchronously. A discharge port 3-6 is provided at a position on the surface of the outer shell 1 opposite to the conveying frame 3-2. The material conveyed by the conveying augers 3-3 can be discharged through the discharge port 3-6. A focusing cover 3-10 is provided on the surface of the outer shell 1 and covers the discharge port 3-6. A mounting seat 3-11 and a material receiving box 3-12 are provided directly below. The material receiving box 3-12 is placed on the mounting seat 3-11 to receive fallen materials, and the material receiving box 3-12 can be removed from the mounting seat 3-11.

[0033] Furthermore, the feeding assembly 4 includes a plurality of brackets 4-1, the brackets 4-1 are fixed on the top of the outer shell 1, a feeding hopper 4-2 is fixedly connected between the brackets 4-1, a telescopic cylinder 4-3 is fixedly connected to the side surface of the feeding hopper 4-2, and a blocking plate 4-4 is connected to the output end of the telescopic cylinder 4-3.

[0034] In this embodiment, in order to achieve the effect of uniform and continuous feeding, a feeding component 4 is designed, and a plurality of brackets 4-1 are arranged on the top of the outer shell 1. A feeding hopper 4-2 is arranged on the top of the bracket 4-1, which can store a certain amount of material. A telescopic cylinder 4-3 is installed on one side of the bottom opening, and a blocking plate 4-4 is connected to the output end of the telescopic cylinder 4-3. The blocking plate 4-4 blocks the bottom outlet of the feeding hopper 4-2, and the blocking plate 4-4 can be lifted or lowered by the telescopic cylinder 4-3.

[0035] Furthermore, the grading screen plate 3-8 has a certain inclination angle, and the vibration motor 3-9 is installed at the highest position of the grading screen plate 3-8.

[0036] In this embodiment, the material can be rolled into the conveying frame 3-2 by the tilt angle during vibration, and the vibration motor 3-9 is installed at the highest point of the grading screen plate 3-8 to make the vibration point more concentrated.

[0037] Furthermore, the aperture of the grading sieve plate 3-8 located in the upper layer is larger than that of the grading sieve plate 3-8 in the lower layer, and the two grading sieve plates 3-8 are inclined in opposite directions.

[0038] In this embodiment, the two grading screen plates 3-8 can screen materials of different sizes through different apertures, and the materials can be concentrated to the high place of the lower layer through opposite inclination directions to facilitate rolling downward for sufficient screening.

[0039] Furthermore, a sliding plate 5 is fixedly connected inside the housing 1 , and the sliding plate 5 is fixed at an inclined angle.

[0040] In this embodiment, by installing the sliding plate 5 with an inclined angle, the materials can be rolled together onto the grading screen plates 3-8 of the lower layer.

[0041] Furthermore, the bottom of the housing 1 is an external opening structure.

[0042] In this embodiment, the opening structure at the bottom of the shell 1 facilitates placing a container into the shell 1 to collect the material falling from the bottom.

[0043] When the material needs to be screened, the material is poured into the feeding hopper 4-2, and then the telescopic cylinder 4-3 is started. The output end extends downward to control the blocking plate 4-4 to open the feeding hopper 4-2 and start discharging. The discharged material falls on the grading screen plate 3-8, and the vibration motor 3-9 is started to vibrate the grading screen plate 3-8. The material falling on the grading screen plate 3-8 is screened, and the unscreened material rolls into the conveying frame 3-2, and the driving motor 3-5 is started to control the conveying auger 3-3 to rotate, and the material is discharged at the discharge port 3-6 and falls into the receiving box 3-12. After the first layer of screening is completed, the sliding plate 5 is used to slide the grading screen plate 3-8 of the lower layer to continue screening. The final material falls to the bottom, and a collection container can be placed at the bottom of the shell 1 to collect the material. The unscreened material is collected in the receiving box 3-12 and can be taken away directly.

[0044] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A screening mechanism for processing graphite negative electrode materials for lithium batteries, characterized in that: include A housing (1) and a pair of stabilizing frames (2), wherein the stabilizing frames (2) are fixed on both sides of the housing (1); A classification processing component (3), wherein the classification processing component (3) is arranged inside the housing (1); A feed assembly (4), the feed assembly (4) being arranged on the top of the housing (1); The grading processing assembly (3) comprises a pair of cross frames (3-1), the cross frames (3-1) are fixed inside the shell (1), a pair of conveying frames (3-2) are fixedly connected inside the shell (1), a conveying auger (3-3) is rotatably connected inside the shell (1), a transmission wheel (3-4) is provided at one end of the conveying auger (3-3), a driving motor (3-5) is fixedly connected to the surface of the shell (1), and an output end of the driving motor (3-5) is connected to the conveying auger (3-3).

2. A screening mechanism for processing graphite negative electrode materials for lithium batteries according to claim 1, characterized in that: A pair of discharge ports (3-6) are provided on the side surface of the shell (1), and the positions of the discharge ports (3-6) and the conveying frame (3-2) are corresponding. A pair of buffer springs (3-7) are provided on the upper surface of the horizontal frame (3-1) and the bottom of the conveying frame (3-2). The upper ends of the buffer springs (3-7) are connected to grading screen plates (3-8). There are two grading screen plates (3-8), and a vibration motor (3-9) is fixedly connected to the surface of the grading screen plates (3-8).

3. A screening mechanism for processing graphite negative electrode materials for lithium batteries according to claim 2, characterized in that: A pair of centralizing covers (3-10) are arranged on the outer surface of the shell (1), and the centralizing covers (3-10) are located outside the discharge port (3-6). A pair of mounting seats (3-11) are fixedly connected to the side surface of the shell (1), and the mounting seats (3-11) are located directly below the centralizing covers (3-10). A material receiving box (3-12) is placed inside the mounting seats (3-11).

4. A screening mechanism for processing graphite negative electrode materials for lithium batteries according to claim 1, characterized in that: The feeding assembly (4) comprises a plurality of brackets (4-1), wherein the brackets (4-1) are fixed to the top of the housing (1), a feeding hopper (4-2) is fixedly connected between the brackets (4-1), a telescopic cylinder (4-3) is fixedly connected to the side surface of the feeding hopper (4-2), and a blocking plate (4-4) is connected to the output end of the telescopic cylinder (4-3).

5. A screening mechanism for processing graphite negative electrode materials for lithium batteries according to claim 2, characterized in that: The grading screen plate (3-8) has an inclination angle, and the vibration motor (3-9) is installed at the highest position of the grading screen plate (3-8).

6. A screening mechanism for processing graphite negative electrode materials for lithium batteries according to claim 2, characterized in that: The aperture of the grading sieve plate (3-8) located at the upper layer is larger than that of the grading sieve plate (3-8) at the lower layer, and the two grading sieve plates (3-8) are inclined in opposite directions.

7. The screening mechanism for processing graphite negative electrode materials for lithium batteries according to claim 1, characterized in that: A sliding plate (5) is fixedly connected inside the housing (1), and the sliding plate (5) is fixed at an inclined angle.

8. The screening mechanism for processing graphite negative electrode materials for lithium batteries according to claim 1, characterized in that: The bottom of the housing (1) is an external opening structure.

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