Crushed product separation device applied to battery negative pole piece

Abstract

The utility model provides a separation device applied to a crushed product of a negative pole piece of a battery, which comprises a separation device main body, and a feeding hole is fixedly formed in the top of the separation device main body; according to the separation device for the crushed product of the battery negative pole piece, the crushed and ground product slowly and uniformly enters the separation device main body through the feeding hole, so that the material can be uniformly paved on the surface of the grounding roller through the feeding plate, and meanwhile, due to the electric quantity electrode and the static electrode, the material can be uniformly ground; free electrons generated by the fine copper powder, the graphite powder and the plastic diaphragm are charged, so that the fine copper powder, the graphite powder and the plastic diaphragm are adsorbed on the surface of the grounding roller, and the free electrons carried by the fine copper powder and the graphite powder are quickly transferred away by the grounding roller due to excellent conductivity, so that the fine copper powder and the graphite powder are separated from the surface of the grounding roller and fall into a fine copper powder collecting bin through an air-lock valve; and on the contrary, the plastic diaphragm is continuously adsorbed until being brushed down by the brush main body and falling into the plastic film receiving bin.

Description

Technical Field

[0001] The utility model relates to the technical field of crushing and separation, in particular to a separation device for the crushing products of battery negative electrode sheets. Background Technique

[0002] With the continuous development of science and technology, the negative electrode sheet usually refers to an electrode sheet with a high potential containing active substances that undergo a reduction reaction during discharge.

[0003] When the existing device is in use, the vibrating screen separation is the main solution for the current separation of battery negative electrode sheets. This separation method mainly separates based on the different particle sizes of the crushing products. However, the corresponding crushing and grinding equipment often fails to obtain a uniform particle size, resulting in an unsatisfactory separation effect. The final product is prone to a mixture of fine copper powder, graphite powder, and plastic diaphragms. For this reason, we propose a separation device for the crushing products of battery negative electrode sheets. Summary of the Invention

[0004] In order to solve the above problems, the utility model proposes a separation device for the crushing products of battery negative electrode sheets to more precisely solve the problems of inconvenient separation and inconvenient separation of copper powder and graphite powder described above.

[0005] The utility model is realized through the following technical solutions:

[0006] The utility model proposes a separation device for the crushing products of battery negative electrode sheets, including a separation device main body. A feed inlet is fixedly installed at the top of the separation device main body. A feeding plate is installed inside the separation device main body. A brush main body is installed inside the separation device main body. A power electrode is fixedly installed inside the separation device main body. A static electrode is provided inside the separation device main body. A grounding roller is rotatably connected inside the separation device main body. A plastic film collecting bin is installed at the bottom of the separation device main body. An airtight feeder is installed at the bottom of the separation device main body. A fine copper powder collecting bin is installed at the bottom of the airtight feeder. A connecting pipe is installed on the side of the fine copper powder collecting bin. The other end of the connecting pipe is installed on the side of the graphite powder collecting bin. A negative pressure fan is installed at the top of the graphite powder collecting bin.

[0007] Further, the brush main body includes a mounting frame. A mounting head is installed on one side of the mounting frame close to the inside of the separation device main body. A brush head is installed at the other end of the mounting head.

[0008] Further, the feeding plate is installed on one side close to the feed inlet, and the bottom of the feeding plate is higher than the outside of the grounding roller.

[0009] Further, the plastic film collecting bin is installed on one side close to the brush main body, and the plastic film collecting bin is installed on the left side of the fine copper powder collecting bin.

[0010] Further, the feed inlet is installed on one side close to the brush body, and the top area of the feed inlet is larger than the bottom external area of the feed inlet.

[0011] Further, both ends of the connecting pipe are respectively connected to the opposite surfaces of the fine copper powder collection bin and the graphite powder collection bin, and the bottoms of the fine copper powder collection bin and the graphite powder collection bin are in the same plane.

[0012] Further, the side of the brush head close to the grounding roller is attached to the outside of the grounding roller, and the length of the brush head is the same as the length of the grounding roller.

[0013] Further, the air lock is installed between the bottom of the separation device main body and the top of the fine copper powder collection bin, and the power quantity electrode and the static electrode are installed at a position close to the top of the separation device main body, and the installation positions of the power quantity electrode and the static electrode are close to one side of the fine copper powder collection bin.

[0014] Advantages of the present utility model:

[0015] A separation device for battery negative electrode sheet crushing products proposed by the present utility model allows the crushed and ground products to slowly and evenly enter the interior of the separation device main body through the feed inlet, enabling the material to be evenly spread on the surface of the grounding roller through the feeding plate. At the same time, due to the power quantity electrode and the static electrode, free electrons are generated in the fine copper powder, graphite powder, and plastic diaphragm, causing them to become charged and be adsorbed on the surface of the grounding roller. Among them, the fine copper powder and graphite powder, due to their excellent conductivity, the free electrons they carry will quickly be transferred away by the grounding roller, thus detaching from the surface of the grounding roller and falling into the interior of the fine copper powder collection bin through the air lock. On the contrary, the plastic diaphragm is continuously adsorbed until it is brushed off by the brush body and falls into the interior of the plastic film collection bin.

[0016] For the fine copper powder and graphite powder that fall into the interior of the fine copper powder collection bin, they are separated again due to density difference by a negative pressure fan, enabling the separated graphite powder to enter the interior of the graphite powder collection bin through the connecting pipe, thus facilitating their collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a front structural schematic diagram of the present utility model;

[0018] Figure 2 is a sectional structural schematic diagram of the present utility model;

[0019] Figure 3 is a side structural schematic diagram of the present utility model;

[0020] Figure 4 is a brush structural schematic diagram of the present utility model.

[0021] The reference numerals are as follows:

[0022] In the figure: 1. Separation device main body; 2. Feed inlet; 3. Feeding plate; 4. Brush main body; 401. Mounting rack; 402. Mounting head; 403. Brush head; 5. Electric quantity electrode; 6. Static electrode; 7. Grounding roller; 8. Plastic film collecting bin; 9. Airtight feeder; 10. Fine copper powder collecting bin; 11. Connecting pipe; 12. Graphite powder collecting bin; 13. Negative pressure fan. Specific implementation manner

[0023] In order to more clearly and completely illustrate the technical solution of the present utility model, the present utility model will be further described below with reference to the accompanying drawings.

[0024] Please refer to Figure 1 - Figure 4 , the present utility model provides a separation device for battery negative electrode sheet crushing products, which includes a separation device main body 1. A feed inlet 2 is fixedly installed at the top of the separation device main body 1. A feeding plate 3 is installed inside the separation device main body 1. A brush main body 4 is installed inside the separation device main body 1. An electric quantity electrode 5 is fixedly installed inside the separation device main body 1. A static electrode 6 is provided inside the separation device main body 1. A grounding roller 7 is rotatably connected inside the separation device main body 1. A plastic film collecting bin 8 is installed at the bottom of the separation device main body 1. An airtight feeder 9 is installed at the bottom of the separation device main body 1. A fine copper powder collecting bin 10 is installed at the bottom of the airtight feeder 9. A connecting pipe 11 is installed on the side of the fine copper powder collecting bin 10. The other end of the connecting pipe 11 is installed on the side of the graphite powder collecting bin 12. A negative pressure fan 13 is installed at the top of the graphite powder collecting bin 12. The feed inlet 2 is welded to the top of the separation device main body 1, so that materials can enter the interior of the device through the feed inlet 2. At the same time, the feeding plate 3 installed inside the separation device main body 1 can facilitate the materials to slide onto the surface of the grounding roller 7. The grounding roller 7 is rotatably connected inside the separation device main body 1. The electric quantity electrode 5 and the static electrode 6 can be fixedly installed inside the separation device main body 1, so that the electric quantity electrode 5 and the static electrode 6 can cause fine copper powder, graphite powder and plastic diaphragm to generate free electrons and become charged, and thus be adsorbed on the surface of the grounding roller 7. The installed brush main body 4 can remove the materials adsorbed on the surface of the grounding roller 7, so that the removed plastic film falls into the plastic film collecting bin 8 installed at the bottom of the separation device main body 1. For the airtight feeder 9 installed at the bottom of the separation device main body 1, the fine copper powder and graphite powder can fall into the fine copper powder collecting bin 10. The fine copper powder and graphite powder falling into the fine copper powder collecting bin 10 are separated by the negative pressure fan 13 due to density differences, so that the separated graphite powder enters the graphite powder collecting bin 12 through the connecting pipe 11, thus facilitating its collection.

[0025] The brush body 4 includes a mounting frame 401. On one side of the mounting frame 401 close to the inside of the separation device body 1, a mounting head 402 is installed. At the other end of the mounting head 402, a brush head 403 is installed. When installing the mounting frame 401, the other end of the mounting frame 401 can be welded to the mounting head 402, so that the brush head 403 installed at the other end of the mounting head 402 can remove the plastic film attached to the surface of the grounding roller 7.

[0026] The feeding plate 3 is installed on one side close to the feeding port 2, and the bottom of the feeding plate 3 is higher than the outside of the grounding roller 7. Since the feeding plate 3 is installed on one side close to the feeding port 2, when the material enters, it can be evenly spread on the surface of the grounding roller 7 through the feeding plate 3.

[0027] The plastic film collection bin 8 is installed on one side close to the brush body 4. The plastic film collection bin 8 is installed on the left side of the fine copper powder collection bin 10. The plastic film collection bin 8 is installed on one side close to the brush body 4, which is convenient for the removed plastic film to fall into the inside of the plastic film collection bin 8.

[0028] The feeding port 2 is installed on one side close to the brush body 4, and the top area of the feeding port 2 is larger than the bottom outside area of the feeding port 2. Since the top of the feeding port 2 is larger than the bottom of the feeding port 2, it is convenient to add the material.

[0029] Both ends of the connecting pipe 11 are respectively connected to the opposite surfaces of the fine copper powder collection bin 10 and the graphite powder collection bin 12. The bottoms of the fine copper powder collection bin 10 and the graphite powder collection bin 12 are in the same plane. When using the installed connecting pipe 11, the fine copper powder and graphite powder can be separated by the negative pressure fan 13, and the separated graphite powder can enter the inside of the graphite powder collection bin 12 through the connecting pipe 11.

[0030] One side of the brush head 403 close to the grounding roller 7 is in contact with the outside of the grounding roller 7, and the length of the brush head 403 is the same as the length of the grounding roller 7. The surface of the brush head 403 is in contact with the outside of the grounding roller 7, which makes it convenient to remove the plastic film, and thus convenient to collect it into the inside of the plastic film collection bin 8.

[0031] The air lock 9 is installed between the bottom of the separation device body 1 and the top of the fine copper powder collection bin 10. The power electrode 5 and the static electrode 6 are installed at a position close to the top of the separation device body 1, and the installation positions of the power electrode 5 and the static electrode 6 are close to one side of the fine copper powder collection bin 10. At the installation position of the air lock 9, it is convenient for the fine copper powder and graphite powder to be collected into the inside of the fine copper powder collection bin 10 through the air lock 9. At the same time, due to the positions of the power electrode 5 and the static electrode 6, free electrons are generated in the fine copper powder, graphite powder and plastic diaphragm, resulting in a charged phenomenon and being adsorbed on the surface of the grounding roller 7.

[0032] In this embodiment, a feed inlet 2 is welded to the top of the separation device main body 1, enabling materials to enter the interior of the device through the feed inlet 2. Meanwhile, the feeding plate 3 installed inside the separation device main body 1 facilitates the sliding of the materials onto the surface of the grounding roller 7. The grounding roller 7 is rotatably connected inside the separation device main body 1. The electric quantity electrode 5 and the static electrode 6 can be fixedly installed inside the separation device main body 1, so that the electric quantity electrode 5 and the static electrode 6 can cause free electrons to be generated in fine copper powder, graphite powder, and plastic diaphragms, resulting in an electrified phenomenon, and thus the materials are adsorbed on the surface of the grounding roller 7. The installed brush body 4 can remove the materials adsorbed on the surface of the grounding roller 7, facilitating the falling of the removed plastic film into the plastic film collection bin 8 installed at the bottom of the separation device main body 1. A pneumatic lock 9 is installed at the bottom of the separation device main body 1, enabling the fine copper powder and graphite powder to fall into the interior of the fine copper powder collection bin 10. The fine copper powder and graphite powder falling into the interior of the fine copper powder collection bin 10 are separated by a negative pressure fan 13 due to density differences, and the separated graphite powder enters the interior of the graphite powder collection bin 12 through the connecting pipe 11, facilitating its collection.

[0033] Of course, the present utility model can also have many other embodiments. Based on this embodiment, other embodiments obtained by those of ordinary skill in the art without any creative work belong to the scope protected by the present utility model.

Claims

1. A separation device for the crushed product of a battery negative electrode sheet, comprising a separation device main body, characterized in that, A feed inlet is fixedly installed at the top of the main body of the separation device. A feeding plate is installed inside the main body of the separation device. A brush main body is installed inside the main body of the separation device. A power electrode is fixedly installed inside the main body of the separation device. A static electrode is provided inside the main body of the separation device. A grounding roller is rotatably connected inside the main body of the separation device. A plastic film collecting bin is installed at the bottom of the main body of the separation device. An airtight feeder is installed at the bottom of the main body of the separation device. A fine copper powder collecting bin is installed at the bottom of the airtight feeder. A connecting pipe is installed on the side of the fine copper powder collecting bin. The other end of the connecting pipe is installed on the side of the graphite powder collecting bin. A negative pressure fan is installed at the top of the graphite powder collecting bin.

2. The separation device for the crushed product of the battery negative electrode sheet according to claim 1, wherein The brush main body includes a mounting frame. A mounting head is installed on one side of the mounting frame close to the inside of the main body of the separation device. The other end of the mounting head is installed with a brush head.

3. The separation device for the crushed product of the battery negative electrode sheet according to claim 1, wherein The feeding plate is installed on one side close to the feed inlet, and the bottom of the feeding plate is higher than the outside of the grounding roller.

4. The separation device for the broken product of the battery negative electrode tab according to claim 1, wherein, The plastic film collecting bin is installed on one side close to the brush main body, and the plastic film collecting bin is installed on the left side of the fine copper powder collecting bin.

5. The separation device for battery negative electrode sheet crushing products according to claim 1, characterized in that, The feed inlet is installed on one side close to the brush main body, and the top area of the feed inlet is larger than the bottom outside area of the feed inlet.

6. The separation device for battery negative electrode sheet crushing products according to claim 1, characterized in that, The two ends of the connecting pipe are respectively connected to the opposite surfaces of the fine copper powder collecting bin and the graphite powder collecting bin, and the bottoms of the fine copper powder collecting bin and the graphite powder collecting bin are in the same plane.

7. The separation device for the crushed product of the battery negative electrode sheet according to claim 2, wherein, One side of the brush head close to the grounding roller is in contact with the outside of the grounding roller, and the length of the brush head is the same as the length of the grounding roller.

8. The separation device for the crushed product of the battery negative electrode sheet according to claim 1, wherein, The airtight feeder is installed between the bottom of the main body of the separation device and the top of the fine copper powder collecting bin. The power electrode and the static electrode are installed at a position close to the top of the main body of the separation device, and the installation positions of the power electrode and the static electrode are close to one side of the fine copper powder collecting bin.

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