A scrap lithium battery cell electrode separation device and separation method

Abstract

The present invention relates to the technical field of solid waste treatment, and in particular to a scrapped lithium battery cell electrode separation device and separation method, comprising a base plate, a feed conveyor, and a discharge conveyor, etc., wherein the feed conveyor and the discharge conveyor are installed on the top of the base plate. The present invention can cut the upper and lower sides of the scrapped lithium battery shell respectively through the electric saw 1 on the upper and lower sides, and can cut the right side of the scrapped lithium battery shell through the electric saw 1, and can cut the left side of the scrapped lithium battery shell through the electric saw 2, so as to cut off the front and back sides of the scrapped lithium battery shell, and can push the battery cell forward through the pushing frame, push the battery cell out of the shell, complete the separation of the battery cell and the shell, and can ensure the integrity of the battery cell, so as to carry out fine extraction and efficient reuse of the active substances inside the battery cell.

Description

Technical Field

[0001] The present invention relates to the technical field of solid waste treatment, and in particular to a device and method for separating pole pieces of scrapped lithium battery cells. Background Art

[0002] With the rapid popularization of new energy vehicles and portable electronic devices, lithium batteries have been widely used as the main power source. However, lithium batteries will gradually age and become scrapped during use. Scraped lithium batteries contain a large amount of valuable metal materials such as lithium, cobalt, nickel, etc. Recycling scrapped lithium batteries helps to recycle resources and reduce dependence on natural resources.

[0003] At present, the treatment method of scrapped lithium batteries mostly adopts extensive physical crushing method, which is to send the scrapped lithium batteries into the crusher for overall crushing, and break up all parts such as the shell, electrode material, electrolyte, etc., and then use the sorting machine to perform preliminary separation according to the physical property differences of the materials (such as density, magnetism, etc.) to obtain the recyclable components. The cells inside the scrapped lithium batteries are often difficult to maintain their intact form. The cells are made of key components such as positive electrodes, negative electrodes, diaphragms and electrolytes that are stacked or wound in an orderly manner. The structure is sophisticated and complex. There is currently a lack of technical means to separate the cells individually. Processing by crushing can easily cause serious damage to the cell structure, making it difficult to carry out fine extraction and efficient reuse of the active substances inside the cells in the subsequent recycling process. Summary of the Invention

[0004] In view of this, the present invention provides a scrapped lithium battery cell electrode separation device and separation method, which can overcome the shortcomings of processing by crushing that easily causes serious damage to the cell structure, making it difficult to carry out fine extraction and efficient reuse of the active substances inside the cell in the subsequent recycling process.

[0005] The technical solution is: a scrap lithium battery cell electrode separation device, including a bottom plate, a feeding conveyor, a discharging conveyor, a vertical screw motor, a guide rod, a lifting plate, a lifting frame, a first electric saw, a second electric saw, a frame, a guide rail, a slide plate, a horizontal screw motor, a pushing frame, a supporting mechanism, a pressing mechanism and a cutting mechanism. The feeding conveyor and the discharging conveyor are installed on the top of the bottom plate, and the vertical screw motor is installed in the middle of the top of the bottom plate. The top of the bottom plate is connected to the guide rod, and the lifting plate is slidably connected to the guide rod. The screw of the vertical screw motor and the lifting plate are connected by threads, and the front and rear sides of the top of the lifting plate are connected to the lifting frames. Electric saws 1 for cutting the outer shells of scrapped lithium batteries are installed on the upper and lower sides of the lifting frame, and electric saws 2 for cutting the outer shells of scrapped lithium batteries are installed on the top of the lifting frame. A discharge port is provided on the lifting plate, a frame is connected to the bottom plate, a guide rail is installed on the top of the frame, a slide is slidably connected in the guide rail, a horizontal screw motor is installed in the guide rail, the screw of the horizontal screw motor and the slide are connected by threads, and a pushing frame is connected to the slide. The supporting mechanism is used to support the scrapped lithium batteries, the pressing mechanism is used to press the scrapped lithium batteries, and the cutting mechanism is used to cut off the wires on the battery cells of the scrapped lithium batteries.

[0006] As a further preferred solution, the support mechanism includes a mounting frame and a support conveyor. The guide rod is connected to the mounting frame, and the mounting frame is installed with a support conveyor for supporting scrapped lithium batteries.

[0007] As a further preferred solution, the pressing mechanism includes a mounting plate, a mounting box and a pressing conveyor. The bottom of the guide rail is connected to the mounting plate, the bottom of the mounting plate is connected to the mounting box, and a pressing conveyor is installed in the mounting box for pressing the scrapped lithium batteries.

[0008] As a further preferred solution, the cutting mechanism includes a connecting plate and a cutter. The top of the lifting frame is connected to the connecting plate, and the connecting plate is connected to the cutter for cutting the wires on the battery cells of the scrapped lithium battery.

[0009] As a further preferred solution, it also includes a connecting frame and a material guide plate. The feed conveyor and the discharge conveyor are both connected to the connecting frame, and the material guide plate is connected between the two connecting frames.

[0010] As a further preferred solution, a baffle is also included, and the top of the front connecting plate is connected to a baffle for blocking the outer shell of the scrapped lithium battery.

[0011] As a further preferred solution, a guide plate is also included, and each lifting frame is connected to a guide plate for guiding the scrapped lithium batteries.

[0012] The present invention also provides a separation method for scrapped lithium battery cell electrode separation equipment, comprising the following steps:

[0013] S1: Put the scrapped lithium batteries on the feeding conveyor, which transports the scrapped lithium batteries to the left and then to the supporting conveyor. The electric saws on the upper and lower sides cut the upper and lower sides of the scrapped lithium battery shell respectively;

[0014] S2: After the scrapped lithium batteries are completely transported to the supporting conveyor, the conveyor is pressed to press the scrapped lithium batteries. The second electric saw is aligned with the left side of the scrapped lithium battery shell, and the first electric saw is aligned with the right side of the scrapped lithium battery shell.

[0015] S3: Control the vertical screw motor to drive the electric saw 1 and the electric saw 2 to move downward, the electric saw 1 cuts the right side of the scrapped lithium battery shell, and the electric saw 2 cuts the left side of the scrapped lithium battery shell, and cuts off the front and back sides of the scrapped lithium battery shell;

[0016] S4: The cutter will move downward along with the lifting frame, and the cutter will cut the wires on the scrapped lithium battery cells, completely separating the cells from the cut-off parts of the shell. The cut-off parts of the shell will fall down through the discharge port;

[0017] S5: Control the horizontal screw motor to drive the push frame to move forward, and the push frame pushes the battery cell forward to push the battery cell out of the shell, thereby completing the separation of the battery cell and the shell.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] 1. The present invention can cut the upper and lower sides of the scrapped lithium battery shell respectively through the electric saw 1 on the upper and lower sides. The electric saw 1 can cut the right side of the scrapped lithium battery shell, and the electric saw 2 can cut the left side of the scrapped lithium battery shell. The front and back sides of the scrapped lithium battery shell are cut off. The battery cell can be pushed forward by the pushing frame and pushed out of the shell to complete the separation of the battery cell and the shell, and can ensure the integrity of the battery cell, so as to carry out fine extraction and efficient reuse of the active substances inside the battery cell.

[0020] 2. The pushing rack can push the battery cell onto the guide plate and slide it down along the guide plate. A conveyor belt can be set under the guide plate to transport the battery cell to the next workstation through the conveyor belt to form a production line and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the vertical screw motor and guide rod of the present invention.

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the lifting plate, lifting frame, electric saw 1, electric saw 2 and discharge port of the present invention.

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the guide rail, slide plate, horizontal screw motor and push frame of the present invention.

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the supporting mechanism and the pressing mechanism of the present invention.

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the pressing mechanism of the present invention.

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the cutting mechanism of the present invention.

[0028] Figure 8 It is a schematic diagram of the three-dimensional structure of the connecting frame and the guide plate of the present invention.

[0029] Figure 9 It is a schematic diagram of the three-dimensional structure of the baffle and the guide plate of the present invention.

[0030] Among them: 1-bottom plate, 2-feed conveyor, 3-discharge conveyor, 4-vertical screw motor, 5-guide rod, 6-lifting plate, 7-lifting frame, 8-electric saw 1, 9-electric saw 2, 10-discharge port, 11-frame, 12-guide rail, 13-slide plate, 14-horizontal screw motor, 15-pushing frame, 16-mounting frame, 17-support conveyor, 18-mounting plate, 19-mounting box, 20-pressing conveyor, 21-connecting plate, 22-cutter, 23-connecting frame, 24-guide plate, 25-baffle, 26-guide plate. DETAILED DESCRIPTION

[0031] The present invention will be further described below with reference to the accompanying drawings and examples.

[0032] Reference Figure 1-Figure 7, a scrap lithium battery cell electrode separation device, including a base plate 1, a feeding conveyor 2, a discharging conveyor 3, a vertical screw motor 4, a guide rod 5, a lifting plate 6, a lifting frame 7, an electric saw 8, an electric saw 2, a frame 11, a guide rail 12, a slide plate 13, a horizontal screw motor 14, a pushing frame 15, a supporting mechanism, a pressing mechanism and a cutting mechanism. The feeding conveyor 2 is installed on the right side of the top of the base plate 1 by bolts, the discharging conveyor 3 is installed on the left side of the top of the base plate 1 by bolts, and the vertical screw motor 4 is installed in the middle of the top of the base plate 1 by bolts. Four guide rods 5 are connected to the middle of the top of the base plate 1. The four guide rods 5 are distributed in a rectangular array. The four guide rods 5 are slidably connected to the lifting plate 6. The lifting plate 6 is guided by the four guide rods 5 to prevent the lifting plate 6 from tilting. The vertical screw motor 4 and the lifting plate 6 are connected by threads, and the front and rear sides of the top of the lifting plate 6 are connected with the lifting frame 7 by bolts. Electric saw 1 is installed on the upper and lower sides of the right side of the lifting frame 7, and electric saw 2 is installed on the left side of the top of the lifting frame 7. A discharge port 10 is provided at the front and rear of the lifting plate 6. The middle part of the rear side of the bottom plate 1 is connected to the frame 11 by bolts, and the top of the frame 11 is installed with a guide rail 12 by bolts. A slide plate 13 is slidably connected in the guide rail 12, and a horizontal screw motor 14 is installed in the guide rail 12. The screw of the horizontal screw motor 14 and the slide plate 13 are connected by threads, and the lower front side of the slide plate 13 is connected with a pushing frame 15 by bolts. The supporting mechanism is used to support the scrapped lithium batteries, the pressing mechanism is used to press the scrapped lithium batteries, and the cutting mechanism is used to cut off the wires on the battery cells of the scrapped lithium batteries.

[0033] Reference Figure 5 The supporting mechanism includes a mounting frame 16 and a supporting conveyor 17. The upper ends of the four guide rods 5 are connected to the mounting frame 16, and the supporting conveyor 17 is installed in the mounting frame 16 by bolts.

[0034] Reference Figure 5 and Figure 6 The pressing mechanism includes a mounting plate 18, a mounting box 19 and a pressing conveyor 20. The left and right sides of the front bottom of the guide rail 12 are connected with the mounting plates 18 by bolts. The bottoms of the two mounting plates 18 are connected with the mounting box 19 by bolts. The pressing conveyor 20 is installed in the mounting box 19 by bolts.

[0035] Reference Figure 7 The cutting mechanism includes a connecting plate 21 and a cutter 22. The top of the lifting frame 7 is connected to the connecting plate 21 by bolts, and the sides of the two connecting plates 21 close to each other are connected to the cutter 22 by bolts.

[0036] Reference Figure 8 , also includes a connecting frame 23 and a guide plate 24. The front side of the feed conveyor 2 and the front side of the discharge conveyor 3 are both connected to the connecting frame 23 by bolts, and a guide plate 24 is connected between the two connecting frames 23.

[0037] Reference Figure 9 , also includes a baffle 25, and the baffle 25 is connected to the left and right sides of the top of the front connecting plate 21 by bolts.

[0038] Reference Figure 9 , also includes a guide plate 26, the two lifting frames 7 are connected to each other on one side by bolts with the guide plate 26, and the right side of the guide plate 26 is an inclined surface.

[0039] The staff puts the scrapped lithium battery on the feeding conveyor 2, and the feeding conveyor 2 conveys the scrapped lithium battery to the left and conveys the scrapped lithium battery to the supporting conveyor 17. The scrapped lithium battery will contact the inclined surface on the right side of the guide plate 26 and move to the left along the inclined surface on the right side of the guide plate 26. The guide plate 26 can guide the scrapped lithium battery to ensure that the scrapped lithium battery can be moved to the designated position more accurately. At this time, the electric saws 8 on the upper and lower sides respectively cut the upper and lower sides of the front and rear sides of the scrapped lithium battery shell, and the scrapped lithium battery is completely conveyed to the supporting conveyor. After the scrap lithium battery is put on the machine 17, the conveyor 20 is pressed to press the scrap lithium battery to prevent the scrap lithium battery from shaking. The electric saw 2 9 will be aligned with the left side of the scrap lithium battery shell, and the electric saw 1 8 will be aligned with the right side of the scrap lithium battery shell. Then the vertical screw motor 4 is controlled to drive the lifting plate 6 to move downward, and the lifting plate 6 drives the lifting frame 7 to move downward. The lifting frame 7 drives the electric saw 1 8 and the electric saw 2 9 to move downward. The electric saw 1 8 and the electric saw 2 9 cut the left and right sides of the front and back sides of the scrap lithium battery shell respectively. In this way, the front and back sides of the scrap lithium battery shell can be cut off, and the same When the battery is scrapped, the cutter 22 will move downward with the lifting frame 7, and the cutter 22 can cut the wires on the battery core of the scrapped lithium battery, so that the battery core and the cut-off part of the shell are completely separated, and the cut-off part of the shell will fall down through the discharge port 10. At this time, the pushing frame 15 corresponds to the battery core of the scrapped lithium battery, and the horizontal screw motor 14 is controlled to drive the slide plate 13 to move forward. The slide plate 13 drives the pushing frame 15 to move forward, and the pushing frame 15 pushes the battery core forward to push the battery core out of the shell, thereby completing the separation of the battery core and the shell and ensuring the integrity of the battery core. In order to carry out fine extraction and efficient reuse of the active substances inside the battery cells, the battery cells will fall onto the guide plate 24 and slide downward along the guide plate 24. A conveyor belt can be set under the guide plate 24 to transport the battery cells to the next workstation through the conveyor belt to form a production line to improve work efficiency. The baffle 25 can block the shell to prevent the shell from moving forward with the battery cells. Then the supporting conveyor 17 and the pressing conveyor 20 transport the shell to the left together and transport the shell to the discharging conveyor 3. The discharging conveyor 3 transports the shell to the left and sends the shell away.

[0040] The present invention also provides a separation method for scrapped lithium battery cell electrode separation equipment, comprising the following steps:

[0041] S1: Put the scrapped lithium batteries on the feeding conveyor 2, which conveys the scrapped lithium batteries to the left and then to the supporting conveyor 17. The electric saws 8 on the upper and lower sides cut the upper and lower sides of the scrapped lithium battery shell respectively;

[0042] S2: After the scrapped lithium batteries are completely transported to the support conveyor 17, the pressing conveyor 20 presses the scrapped lithium batteries, the electric saw 2 9 is aligned with the left side of the scrapped lithium battery shell, and the electric saw 1 8 is aligned with the right side of the scrapped lithium battery shell;

[0043] S3: Control the vertical screw motor 4 to drive the electric saw 1 8 and the electric saw 2 9 to move downward, the electric saw 1 8 cuts the right side of the scrapped lithium battery shell, and the electric saw 2 9 cuts the left side of the scrapped lithium battery shell, and cuts off the front and back sides of the scrapped lithium battery shell;

[0044] S4: The cutter 22 moves downward along with the lifting frame 7, and the cutter 22 cuts the wires on the scrapped lithium battery cells, completely separating the cells from the cut-off portion of the shell. The cut-off portion of the shell falls downward through the discharge port 10.

[0045] S5: Control the horizontal screw motor 14 to drive the pushing frame 15 to move forward, and the pushing frame 15 pushes the battery cell forward to push the battery cell out of the shell, thereby completing the separation of the battery cell and the shell.

[0046] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A scrap lithium battery cell electrode separation device, comprising a bottom plate (1), a feed conveyor (2) and a discharge conveyor (3), wherein the feed conveyor (2) and the discharge conveyor (3) are installed on the top of the bottom plate (1), characterized in that: The invention also includes a vertical screw motor (4), a guide rod (5), a lifting plate (6), a lifting frame (7), an electric saw (8), an electric saw (9), a frame (11), a guide rail (12), a slide plate (13), a horizontal screw motor (14), a push frame (15), a supporting mechanism, a pressing mechanism and a cutting mechanism. The vertical screw motor (4) is installed in the middle of the top of the bottom plate (1). The top of the bottom plate (1) is connected to a guide rod (5). The guide rod (5) is slidably connected to the lifting plate (6). The screw of the vertical screw motor (4) and the lifting plate (6) are connected by threads. The front and rear sides of the top of the lifting plate (6) are connected to the lifting frame (7). The upper and lower sides of the lifting frame (7) are equipped with a mechanism for cleaning the shell of the scrapped lithium battery. A cutting electric saw (8) is provided, and a second electric saw (9) for cutting the shell of the scrapped lithium battery is installed on the top of the lifting frame (7). A discharge port (10) is provided on the lifting plate (6). A frame (11) is connected to the bottom plate (1). A guide rail (12) is provided on the top of the frame (11). A slide plate (13) is slidably connected in the guide rail (12). A horizontal screw motor (14) is provided in the guide rail (12). The screw of the horizontal screw motor (14) and the slide plate (13) are connected by threads. A push frame (15) is connected to the slide plate (13). The support mechanism is used to support the scrapped lithium battery, the pressing mechanism is used to press the scrapped lithium battery, and the cutting mechanism is used to cut off the wires on the battery core of the scrapped lithium battery. The support mechanism includes a mounting frame (16) and a support conveyor (17); the guide rod (5) is connected to the mounting frame (16); and the mounting frame (16) is installed with a support conveyor (17) for supporting scrapped lithium batteries. The cutting mechanism comprises a connecting plate (21) and a cutter (22). The top of the lifting frame (7) is connected to the connecting plate (21), and the connecting plate (21) is connected to the cutter (22) for cutting the wires on the battery core of the scrapped lithium battery.

2. The scrapped lithium battery cell electrode separation device according to claim 1, characterized in that: The pressing mechanism comprises a mounting plate (18), a mounting box (19) and a pressing conveyor (20); the bottom of the guide rail (12) is connected to the mounting plate (18); the bottom of the mounting plate (18) is connected to the mounting box (19); and the pressing conveyor (20) for pressing the scrapped lithium batteries is installed in the mounting box (19).

3. The scrapped lithium battery cell electrode separation device according to claim 1, characterized in that: It also includes a connecting frame (23) and a material guide plate (24). The feeding conveyor (2) and the discharging conveyor (3) are both connected to the connecting frame (23), and the material guide plate (24) is connected between the two connecting frames (23).

4. The scrapped lithium battery cell electrode separation device according to claim 1, characterized in that: It also includes a baffle (25), and the top of the front connecting plate (21) is connected to the baffle (25) for blocking the shell of the scrapped lithium battery.

5. The scrapped lithium battery cell electrode separation device according to claim 1, characterized in that: It also includes a guide plate (26), and each lifting frame (7) is connected to a guide plate (26) for guiding the scrapped lithium batteries.

6. The separation method of a scrapped lithium battery cell electrode separation device according to claim 1, characterized in that: The following steps are involved: S1: Put the scrapped lithium battery on the feeding conveyor (2), the feeding conveyor (2) conveys the scrapped lithium battery to the left, and conveys the scrapped lithium battery to the supporting conveyor (17), and the electric saws (8) on the upper and lower sides respectively cut the upper and lower sides of the scrapped lithium battery shell; S2: After the scrapped lithium battery is completely transported to the support conveyor (17), the pressing conveyor (20) presses the scrapped lithium battery, the electric saw 2 (9) is aligned with the left side of the scrapped lithium battery shell, and the electric saw 1 (8) is aligned with the right side of the scrapped lithium battery shell; S3: Control the vertical screw motor (4) to drive the electric saw 1 (8) and the electric saw 2 (9) to move downward, the electric saw 1 (8) cuts the right side of the scrapped lithium battery shell, and the electric saw 2 (9) cuts the left side of the scrapped lithium battery shell, and cuts off the front and back sides of the scrapped lithium battery shell; S4: The cutter (22) moves downward along with the lifting frame (7), and the cutter (22) cuts the wires on the battery core of the scrapped lithium battery, so that the battery core and the cut portion of the shell are completely separated, and the cut portion of the shell falls downward through the discharge port (10); S5: Control the horizontal screw motor (14) to drive the push frame (15) to move forward, and the push frame (15) pushes the battery cell forward to push the battery cell out of the shell, thereby completing the separation of the battery cell and the shell.

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