A device for cleaning waste lithium battery diaphragm paper

Abstract

The present invention relates to the technical field of waste lithium battery treatment, and in particular to a waste lithium battery diaphragm paper cleaning device, which comprises a frame and an outer shell body detachably connected to the frame with a separation chamber, a separation shaft penetrating the outer shell body is provided in the separation chamber, and the separation shaft is rotatably connected to the frame; a plurality of groups of separation mechanisms are provided on the separation shaft along its axial direction, each group of separation mechanisms comprises a clamping block sleeved on the separation shaft, and a plurality of separation blades are provided on the clamping block; a rotating cylinder with a hollow cylindrical structure is sleeved on the separation shaft, and a plurality of fine powder holes are opened on the cylinder wall of the rotating cylinder, the separation mechanism is located in the rotating cylinder, and the rotating cylinder is rotatably connected to the frame through a connecting mechanism; a feeding port of the rotating cylinder for powder-containing diaphragm paper to enter is provided on the outer shell body; a diaphragm paper slide groove connected to the separation chamber and a plurality of fine powder chutes are provided at the bottom of the outer shell body; a transmission device is provided on the frame; the problem of incomplete separation of diaphragm paper and fine powder by using a vibrating screen for separating diaphragm paper and fine powder is solved.

Description

Technical Field

[0001] The invention relates to the technical field of waste lithium battery treatment, and in particular to a waste lithium battery diaphragm paper cleaning device. Background Art

[0002] As we all know, the life of lithium-ion batteries is generally 2 to 3 years. After lithium-ion batteries reach the upper limit of scrapping, most of the waste lithium batteries are directly discarded or left idle at will. Lithium-ion batteries contain a variety of toxic substances, which are highly corrosive and polluting. In addition, the electrolyte of waste lithium-ion batteries contains highly toxic, flammable, explosive, and corrosive electrolytes and organic solvents; if they are discarded or leaked at will, they will cause pollution and damage to the atmosphere, water, and soil. Moreover, electrolyte leakage and excessive temperature will cause dangers such as battery explosion and fire, which directly threaten people's lives and property.

[0003] In addition, waste lithium batteries will produce a series of pollutants during the crushing, sorting and high-temperature pyrolysis pretreatment process, such as electrolyte decomposition, plastic film pyrolysis, crushing dust, waste residue, etc. These pollutants not only cause serious pollution to the atmosphere and water bodies, but also have serious corrosion to the equipment. At the same time, various acid and alkali leaching agents, extractants, active additives, etc. that need to be added in the process not only increase the cost of the recycling process, cause waste of resources and increase energy consumption, but also a large amount of waste water, waste gas, waste residue, waste additives, etc. increase secondary pollution; the traditional method uses a vibrating screen to separate diaphragm paper and fine powder, which not only causes dust to float everywhere, but also incomplete separation. Summary of the invention

[0004] In view of the above problems in the prior art, the present invention provides a device for cleaning waste lithium battery diaphragm paper, which solves the problem that the diaphragm paper and fine powder are separated by a vibrating screen, which not only causes dust to float everywhere but also causes incomplete separation.

[0005] In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention is as follows:

[0006] Provided is a waste lithium battery diaphragm paper cleaning device, comprising a frame and an outer shell with a separation chamber detachably connected to the frame, a separation shaft penetrating the outer shell is arranged in the separation chamber, and the separation shaft is rotatably connected to the frame;

[0007] The separation shaft is provided with a plurality of separation mechanisms along its axial direction, each of which comprises a clamping block sleeved on the separation shaft, and a plurality of separation blades are provided on the clamping block;

[0008] A rotating cylinder with a hollow cylindrical structure is sleeved on the separation shaft, and a plurality of fine powder holes for fine powder to pass through are opened on the cylinder wall of the rotating cylinder. The separation mechanism is located in the rotating cylinder, and the rotating cylinder is rotatably connected to the frame through a connecting mechanism; a feeding port of the rotating cylinder for the powder-containing diaphragm paper to enter is provided on the outer shell;

[0009] The bottom of the outer shell is provided with a membrane paper chute and a plurality of fine powder chutes which are connected with the separation chamber; the frame is provided with a transmission device for driving the separation shaft and the rotating cylinder to rotate.

[0010] Furthermore, the transmission device includes a first driving device and a second driving device which are respectively connected to the separation shaft and the rotating drum.

[0011] Furthermore, the connecting mechanism comprises a hollow shaft sleeved on the separation shaft, one end of the hollow shaft is rotatably connected to the frame, and the other end of the hollow shaft is connected to the inner wall of the rotating cylinder through the connecting frame.

[0012] Furthermore, the hollow shaft includes a main body section which is a stepped shaft, one end of which is provided with a circular ring section radially outwardly, and the connecting frame includes a connecting ring which is sleeved on the main body section and connected to the circular ring section, the outer shape of the connecting ring is a convex shape, and a plurality of connecting arms are provided on the small end of the connecting ring, and the end of the connecting arm away from the connecting ring is connected to the inner wall of the rotating cylinder.

[0013] Furthermore, one end of the hollow shaft rotatably connected to the frame passes through the outer shell, and one end of the hollow shaft passing through the outer shell is transmission-connected to the transmission device through a transmission mechanism.

[0014] Furthermore, an air extraction hopper connected to the separation chamber is provided on the top of the outer shell.

[0015] Furthermore, the clamping block includes two arc-shaped blocks, and both arc-shaped blocks are threadedly connected to the separation shaft.

[0016] Further, the number of fine powder chutes is three.

[0017] The beneficial effects of the present invention are:

[0018] In the present scheme, a rotating cylinder is sleeved on the separation shaft, and a plurality of separation blades located inside the rotating cylinder are arranged on the separation shaft. Therefore, when separating the powder-containing diaphragm, the rotation directions of the separation shaft and the rotating cylinder are different. Driven by the separation shaft, the separation blades continuously beat the powder-containing diaphragm, and the separated fine powder enters the separation chamber from the fine powder hole, and the separated fine powder is collected through the fine powder chute. In this process, the diaphragm paper flows out from the diaphragm paper outlet along with the rotating airflow of the separation blades, so that the diaphragm paper is automatically discharged, and the rotation of the separation shaft is prevented from being hindered by excessive diaphragm paper, so that the diaphragm paper no longer contains fine powder, and the purpose of cleaning is achieved.

[0019] Under the action of centrifugal force and the beating of the separation blades, the fine powder on the diaphragm paper is completely separated; because the separation process is carried out in the separation chamber, the dust is prevented from floating around. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a cross-sectional view of a device for cleaning waste lithium battery diaphragm paper.

[0021] Figure 2 This is a front view of a device for cleaning waste lithium battery diaphragm paper.

[0022] Figure 3 This is the left view of the waste lithium battery diaphragm paper cleaning device.

[0023] Figure 4 This is a top view of a device for cleaning waste lithium battery diaphragm paper.

[0024] Figure 5 This is the left view of the separation mechanism of the waste lithium battery diaphragm paper cleaning device.

[0025] Figure 6 This is a cross-sectional view of the rotating drum of a waste lithium battery diaphragm paper cleaning device.

[0026] Figure 7 This is a schematic diagram of the connection frame of the waste lithium battery diaphragm paper cleaning device.

[0027] Figure 8 This is a cross-sectional view of the hollow shaft of a waste lithium battery diaphragm paper cleaning device.

[0028] Among them, 1. frame; 2. outer shell; 3. rotating cylinder; 4. separation shaft; 5. separation mechanism; 501. clamping block; 502. separation blade; 6. fine powder chute; 7. diaphragm paper chute; 8. transmission device; 901. hollow shaft; 9011. main body section; 9012. circular ring section; 902. connecting frame; 9021. connecting ring; 9022. connecting arm; 10. exhaust hopper. DETAILED DESCRIPTION

[0029] The specific implementation modes of the present invention are described below so that those skilled in the art can understand the present invention. However, it should be clear that the present invention is not limited to the scope of the specific implementation modes. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the attached claims, these changes are obvious, and all inventions and creations utilizing the concept of the present invention are protected.

[0030] like Figure 1-Figure 4 As shown, the present invention provides a waste lithium battery diaphragm paper cleaning device, which comprises a frame 1 and an outer shell 2 with a separation chamber detachably connected to the frame 1, a separation shaft 4 penetrating the outer shell 2 is provided in the separation chamber, and the separation shaft 4 is rotatably connected to the frame 1;

[0031] A plurality of separation mechanisms 5 are provided on the separation shaft 4 along its axial direction. Each separation mechanism 5 comprises a clamping block 501 sleeved on the separation shaft 4. The clamping block 501 is provided with a plurality of separation blades 502.

[0032] A rotating cylinder 3 with a hollow cylindrical structure is sleeved on the separation shaft 4, and a plurality of fine powder holes for fine powder to pass through are opened on the cylinder wall of the rotating cylinder 3. The separation mechanism is located in the rotating cylinder 3, and the rotating cylinder 3 is rotatably connected to the frame 1 through a connecting mechanism; a feeding port for the rotating cylinder 3 containing powder membrane paper to enter is provided on the outer shell 2;

[0033] A fine powder chute 6 and a plurality of membrane paper chutes 7 communicating with the separation chamber are provided at the bottom of the outer shell 2; a transmission device 8 for driving the separation shaft 4 and the rotating cylinder 3 to rotate is provided on the frame 1.

[0034] The transmission device 8 includes a first driving device and a second driving device which are transmission-connected to the separation shaft 4 and the rotating drum 3 respectively.

[0035] Specifically, the feed port is opposite to the openings at both ends of the rotating cylinder 3, so as to realize the feeding operation of the powder-containing membrane paper; the top of the outer shell 2 is provided with an air extraction hopper 10 connected with the separation chamber to realize the flow of fine powder; the number of fine powder chutes 6 is three, so as to ensure that all fine powder is separated from the separation chamber;

[0036] When in use, the rotating cylinder 3 rotates counterclockwise, and the separation shaft 4 drives the separation blades 502 to rotate clockwise, so that the powder-containing diaphragm paper is beaten by the separation blades 502 at various locations, and the fine powder on it is separated as much as possible; the separated fine powder enters the separation chamber through a number of fine powder holes on the rotating cylinder 3, and all the fine powder is collected through the fine powder chute 6. The setting of the separation chamber prevents the fine powder from floating around; the diaphragm paper flows out to the diaphragm paper outlet along with the rotating airflow of the separation blades 502. During the flow, the diaphragm paper is continuously beaten by the separation blades 502, and the fine powder is further separated. Therefore, when the diaphragm paper reaches the diaphragm paper outlet, the diaphragm paper no longer contains fine powder, thereby achieving the purpose of cleaning.

[0037] In implementation, the transmission device 8 of this solution preferably includes a first drive device and a second drive device respectively connected to the separation shaft 4 and the rotating drum 3. The first drive device and the second drive device are used to separately control the rotation speed of the rotating drum 3 and the separation shaft 4 to obtain a better separation effect.

[0038] When implementing, Figure 1 and 6 As shown, the preferred connection mechanism of this solution includes a hollow shaft 901 sleeved on the separation shaft 4, one end of the hollow shaft is rotatably connected to the frame 1, and the other end of the hollow shaft 901 is connected to the inner wall of the rotating cylinder 3 through the connecting frame 902. The setting of the hollow shaft 901 not only makes the rotation direction of the rotating cylinder 3 different from that of the separation shaft 4, but also plays a supporting role; a connection mechanism is respectively provided at both ends of the rotating cylinder 3 to realize the rotation connection between the rotating cylinder 3 and the frame 1.

[0039] Among them, Figure 6-8As shown, the hollow shaft 901 includes a main body section 9011 which is a stepped shaft, and one end of the main body section 9011 is provided with a circular ring section 9012 radially outwardly thereof, and the connecting frame 902 includes a connecting ring 9021 which is sleeved on the main body section 9011 and connected to the circular ring section 9012, and the outer shape of the connecting ring 9021 is a convex shape, and a plurality of connecting arms 9022 are provided on the small end of the connecting ring 9021, and the end of the connecting arm 9022 away from the connecting ring 9021 is connected to the inner wall of the rotating cylinder 3.

[0040] Among them, one end of the hollow shaft 901 rotatably connected to the frame 1 passes through the outer shell 2, and the end of the hollow shaft 901 passing through the outer shell 2 is connected to the transmission device 8 through a transmission mechanism, and the transmission mechanism can adopt a belt drive or a chain drive; the end of the hollow shaft 901 rotatably connected to the frame 1 is located at the part passing through the outer shell 2, which simplifies the structure inside the separation chamber and facilitates assembly and collection of fine powder.

[0041] When implementing, Figure 5 As shown, the preferred clamping block 501 of this solution includes two arc blocks, and both arc blocks are threadedly connected to the separation shaft 4. The two arc blocks form a ring, and the arc blocks are threadedly connected to the separation shaft 4, which is convenient for disassembling the separation blade 502, and is particularly suitable for disassembling the separation mechanism 5 at the middle position of the separation shaft 4 after the separation blade 502 is damaged; in this embodiment, three separation blades are welded to each arc block 501.

Claims

1. A device for cleaning waste lithium battery diaphragm paper, characterized in that: It comprises a frame (1), to which an outer shell (2) having a separation chamber is detachably connected, a separation shaft (4) penetrating the outer shell (2) is provided in the separation chamber, and the separation shaft (4) is rotatably connected to the frame (1); The separation shaft (4) is provided with a plurality of separation mechanisms (5) along its axial direction, each of the separation mechanisms (5) comprising a clamping block (501) sleeved on the separation shaft (4), and a plurality of separation blades (502) are provided on the clamping block (501); The separation shaft (4) is sleeved with a rotating cylinder (3) of a hollow cylindrical structure, and a plurality of fine powder holes for fine powder to pass through are opened on the cylinder wall of the rotating cylinder (3); the separation mechanism is located in the rotating cylinder (3), and the rotating cylinder (3) is rotatably connected to the frame (1) via a connecting mechanism; the outer shell (2) is provided with a feed port for the rotating cylinder (3) for powder-containing diaphragm paper to enter; The bottom of the outer shell (2) is provided with a membrane paper chute (7) and a plurality of fine powder chutes (6) which are connected to the separation chamber; the frame (1) is provided with a transmission device (8) for driving the separation shaft (4) and the rotating cylinder (3) to rotate; The connection mechanism comprises a hollow shaft (901) sleeved on the separation shaft (4), one end of the hollow shaft (901) being rotatably connected to the frame (1), and the other end of the hollow shaft (901) being connected to the inner wall of the rotating cylinder (3) via a connecting frame (902); The hollow shaft (901) comprises a main body section (9011) which is a stepped shaft, one end of the main body section (9011) being provided with a circular ring section (9012) radially outwardly thereof, the connecting frame (902) comprising a connecting ring (9021) sleeved on the main body section (9011) and connected to the circular ring section (9012), the connecting ring (9021) being in the shape of a convex letter, a plurality of connecting arms (9022) being provided on the small end of the connecting ring (9021), the end of the connecting arm (9022) being away from the connecting ring (9021) being connected to the inner wall of the rotating cylinder (3); One end of the hollow shaft (901) rotatably connected to the frame (1) passes through the outer shell (2), and one end of the hollow shaft (901) passing through the outer shell (2) is transmission-connected to the transmission device (8) via a transmission mechanism; The clamping block (501) comprises two arc-shaped blocks, and both of the arc-shaped blocks are threadedly connected to the separation shaft (4).

2. The waste lithium battery diaphragm paper cleaning device according to claim 1, characterized in that: The transmission device (8) comprises a first driving device and a second driving device which are respectively connected to the separation shaft (4) and the rotating drum (3) in a transmission manner.

3. The waste lithium battery diaphragm paper cleaning device according to claim 1, characterized in that: The top of the outer shell (2) is provided with an air extraction hopper (10) which is in communication with the separation chamber.

4. The waste lithium battery diaphragm paper cleaning device according to claim 1, characterized in that: The number of the fine powder chutes (6) is three.

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