Lithium battery pack recycling and disassembling equipment and disassembling method thereof

Abstract

The invention belongs to the technical field of lithium battery recycling, and particularly relates to lithium battery pack recycling and disassembling equipment which comprises a base and a main box body, the main box body is fixedly connected with the top of the base through a stand column, a sliding groove is formed in the top of the base, a sliding rod is fixedly connected into the sliding groove, the sliding rod is slidably sleeved with a sliding block, and the sliding rod is sleeved with a first spring; the disassembling method comprises the following steps that 1, the waste lithium battery pack is guided into the main box body through the feeding opening, and the waste lithium battery pack is crushed and disassembled through the spiral cutter; 2, a second motor is started to drive a first screening box and a second screening box to move in a reciprocating mode; and 3, the disassembled powder materials are screened and recycled through a first screen and a second screen. According to the recycling and disassembling equipment for the lithium battery pack, through the arrangement of the multiple layers of screening mechanisms, the recycling and disassembling equipment can rapidly screen and recycle disassembled powder materials, and therefore the recycling and disassembling efficiency of the lithium battery pack is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery recycling, and in particular to a lithium battery pack recycling and disassembly device and a disassembly method thereof. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as positive / negative electrode materials and non-aqueous electrolyte solutions. Due to the highly 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. For example, new energy vehicles mostly use large-capacity lithium battery packs as power sources. As for damaged and scrapped lithium battery packs, they are often recycled because of their extremely high value.

[0003] At present, disassembly is an extremely important process in the recycling of lithium battery packs. Since lithium battery packs are mainly composed of multiple copper foils, aluminum foils and diaphragms stacked on top of each other and wrapped in an aluminum shell, their disassembly methods mostly use mechanical crushing or manual disassembly and separation.

[0004] However, the existing lithium battery pack recycling and disassembly equipment has a relatively simple structure, lacks a certain screening mechanism, and cannot quickly screen and recycle the disassembled powder materials, thereby affecting the recycling and disassembly efficiency of the lithium battery pack. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] The purpose of the present invention is to solve the problem that the recycling and disassembly equipment in the prior art lacks a certain screening mechanism and cannot quickly screen and recycle the disassembled powder materials, and to propose a lithium battery pack recycling and disassembly equipment and a disassembly method thereof.

[0007] 2. Technical solution

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A lithium battery pack recycling and disassembly device comprises a base and a main box body, the main box body is fixedly connected to the top of the base through a column, the top of the base is provided with a slide groove, a slide rod is fixedly connected in the slide groove, a slider is slidably sleeved on the slide rod, a first spring is sleeved on the slide rod, the two ends of the first spring are respectively fixedly connected to the slider and the inner wall of the slide groove, a first screening box is fixedly connected to the top of the slider, a second screening box is fixedly connected to the top of the first screening box through a plurality of L-shaped fixing rods, a first screen is slidably inserted into the inner bottom of the second screening box, a through opening corresponding to the first screen is provided on the top of the first screening box, and a second screen is slidably inserted into the top of the second screening box;

[0010] A first motor is fixedly connected to one side of the column, a turntable is fixedly connected to the output end of the first motor, a connecting rod is rotatably connected to the edge of the turntable, one end of the connecting rod is rotatably connected to a traction rod, one end of the traction rod passes through the column and extends outward, and one end of the traction rod is rotatably connected to the outer wall of the first screening box;

[0011] A feed port is provided on the top of the main box body, a baffle is slidably inserted in the feed port, one end of the baffle passes through the inner wall of the feed port and extends outward, a discharge port corresponding to the top of the second screening box is provided on the inner bottom of the main box body, a second motor is fixedly connected to one end of the main box body, a rotating rod is fixedly connected to the output end of the second motor, and a spiral cutter is arranged around one end of the rotating rod located in the main box body.

[0012] Preferably, the column is provided with a sliding opening corresponding to the traction rod, a plurality of steel balls are slidably connected in the sliding opening, and the edges of the steel balls are in contact with the traction rod.

[0013] Preferably, a material guide plate corresponding to the first screen is fixedly connected to the inner bottom of the second screening box.

[0014] Preferably, the edges of the first screen and the second screen are fixedly connected with support rings, a plurality of positioning blocks are fixedly connected to the inner wall of the second screening box, and the bottom of the support ring is provided with positioning grooves corresponding to the positioning blocks.

[0015] Preferably, a flow guide cover is fixedly sleeved on the bottom of the discharge port of the main box body.

[0016] Preferably, one end of the baffle located in the feed inlet is fixedly sleeved with a limiting block.

[0017] Preferably, a card rod is slidably inserted into the end of the baffle away from the limit block, a card block is fixedly connected to the outer wall of the main box body, a card sleeve is fixedly sleeved on the end of the card rod close to the card block, a pull rod is fixedly connected to the end of the card rod away from the card sleeve, a second spring is sleeved on the card rod, and the two ends of the second spring are respectively fixedly connected to the card sleeve and the baffle.

[0018] Preferably, the bottom of the base is rotatably connected with a plurality of universal self-locking wheels.

[0019] The present invention also proposes a disassembly method of a lithium battery pack recycling and disassembly device, comprising the following steps:

[0020] Step 1: First, introduce the waste lithium battery pack into the main box through the feed port, then start the first motor to drive the rotating rod to rotate, and drive the spiral cutter to crush and disassemble the waste lithium battery pack;

[0021] Step 2: Then start the second motor to drive the turntable to rotate, and at the same time, through the joint action of the connecting rod, the traction rod and the first spring, drive the first screening box and the second screening box to move back and forth;

[0022] Step 3: The disassembled small pieces and powder are introduced into the second screening box through the discharge port, and then enter the second screening box after being screened by the second screen. The powder in the second screening box enters the first screening box after being screened by the first screen, thereby realizing the screening and recovery of the disassembled powder material.

[0023] 3. Beneficial effects

[0024] Compared with the prior art, the advantages of the present invention are:

[0025] (1) In the present invention, by setting up a multi-layer screening mechanism, the recycling and disassembly equipment can quickly screen and recycle the disassembled powder materials, thereby effectively improving the recycling and disassembly efficiency of the lithium battery pack.

[0026] (2) In the present invention, the setting of the universal self-locking wheel can facilitate the movement of the base, and the steel ball can reduce the friction between the traction rod and the inner wall of the slide. At the same time, the setting of the material guide plate can facilitate the powder to enter the first screen, and the setting of the material guide cover can facilitate the powder to enter the second screen.

[0027] (3) In the present invention, the baffle can prevent the waste from leaking out. At the same time, the clamping rod can effectively fix the baffle, the second spring can provide a certain elastic support for the clamping rod, the clamping sleeve can prevent the clamping rod from falling off the baffle, and the pull rod can facilitate pulling the clamping rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a structural schematic diagram of a lithium battery pack recycling and disassembly device proposed by the present invention;

[0029] Figure 2 This is a schematic diagram of the top view of the base of a lithium battery pack recycling and disassembly equipment proposed by the present invention;

[0030] Figure 3 for Figure 1 A schematic diagram of the structure at A;

[0031] Figure 4 for Figure 1 Schematic diagram of the structure at point B.

[0032] In the figure: 1 base, 2 main box, 3 column, 4 slide bar, 5 slider, 6 first spring, 7 first screening box, 8 L-shaped fixing bar, 9 second screening box, 10 first screen, 11 second screen, 12 first motor, 13 turntable, 14 connecting rod, 15 traction rod, 16 baffle, 17 second motor, 18 rotating rod, 19 spiral cutter, 20 steel ball, 21 guide plate, 22 support ring, 23 positioning block, 24 deflector, 25 limit block, 26 clamping rod, 27 clamping block, 28 clamping sleeve, 29 pull rod, 30 second spring, 31 universal self-locking wheel. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] Embodiment 1:

[0035] Reference Figure 1-4 , a lithium battery pack recycling and disassembly equipment, including a base 1 and a main box 2, the bottom of the base 1 is rotatably connected with a plurality of universal self-locking wheels 31, which is convenient for moving the base 1, the main box 2 is fixedly connected to the top of the base 1 through a column 3, the top of the base 1 is provided with a slide groove, and a slide rod 4 is fixedly connected in the slide groove for supporting a slider 5, the slider 5 is slidably sleeved on the slide rod 4, and a first spring 6 is sleeved on the slide rod 4, and the two ends of the first spring 6 are respectively fixedly connected to the slider 5 and the inner wall of the slide groove, which provides a certain elastic support for the slider 5, the top of the slider 5 is fixedly connected with a first screening box 7, and the upper part of the first screening box 7 is fixedly connected with a second screening box 9 through a plurality of L-shaped fixing rods 8, which is used for screening and recycling the disassembled powder material;

[0036] In the present invention, a first screen 10 is slidably inserted into the inner bottom of the second screening box 9 for screening powder materials, a guide plate 21 corresponding to the first screen 10 is fixedly connected to the inner bottom of the second screening box 9 for convenient export of powder materials, a through opening corresponding to the first screen 10 is provided on the top of the first screening box 7, a second screen 11 is slidably inserted into the top of the second screening box 9 for screening powder materials, a support ring 22 is fixedly connected to the edges of the first screen 10 and the second screen 11 for supporting the first screen 10 and the second screen 11, a plurality of positioning blocks 23 are fixedly connected to the inner wall of the second screening box 9, a positioning groove corresponding to the positioning block 23 is provided at the bottom of the support ring 22 for convenient fixing of the first screen 10 and the second screen 11;

[0037] In the present invention, a first motor 12 is fixedly connected to one side of the column 3, which is used to drive the turntable 13 to rotate. The output end of the first motor 12 is fixedly connected to the turntable 13. The edge of the turntable 13 is rotatably connected to a connecting rod 14. One end of the connecting rod 14 is rotatably connected to a traction rod 15, which is used to drive the first screening box 7 to move back and forth. One end of the traction rod 15 penetrates the column 3 and extends outward. The extended end of the traction rod 15 is rotatably connected to the outer wall of the first screening box 7. A sliding mouth corresponding to the traction rod 15 is provided on the column 3. A plurality of steel balls 20 are slidably connected in the sliding mouth. The edges of the steel balls 20 are in contact with the traction rod 15 to reduce the friction between the traction rod 15 and the inner wall of the sliding mouth.

[0038] In the present invention, a feed port is provided on the top of the main box body 2, and a baffle 16 is slidably inserted in the feed port to prevent waste from leaking out. One end of the baffle 16 penetrates the inner wall of the feed port and extends outward. One end of the baffle 16 located in the feed port is fixedly sleeved with a limiting block 25 to prevent the baffle 16 from falling off from the feed port. A clamping rod 26 is slidably inserted at the end of the baffle 16 away from the limiting block. A clamping block 27 is fixedly connected to the outer wall of the main box body 2. A clamping sleeve 28 is fixedly sleeved at one end of the clamping rod 26 close to the clamping block 27 to prevent the clamping rod 26 from falling off from the baffle 16. A pull rod 29 is fixedly connected at one end of the clamping rod 26 away from the clamping sleeve 28. A second spring 30 is sleeved on the clamping rod 26. The two ends of the second spring 30 are respectively fixedly connected to the clamping sleeve 28 and the baffle 16, so as to provide a certain elastic support for the clamping rod 26.

[0039] In the present invention, a discharge port corresponding to the top of the second screening box 9 is provided at the inner bottom of the main box body 2 for discharging waste materials. A guide cover 24 is fixedly sleeved at the bottom of the discharge port of the main box body 2. A second motor 17 is fixedly connected to one end of the main box body 2 for driving the rotating rod 18 to rotate. The output end of the second motor 17 is fixedly connected to the rotating rod 18. A spiral cutter 19 is arranged around one end of the rotating rod 18 located in the main box body 2 for crushing and disassembling the waste lithium battery packs.

[0040] In the present invention, a disassembly method of a lithium battery pack recycling and disassembly device comprises the following steps:

[0041] Step 1: First, introduce the waste lithium battery pack into the main box 2 through the feed port, then start the first motor 12 to drive the rotating rod 18 to rotate, and drive the spiral cutter 19 to crush and disassemble the waste lithium battery pack;

[0042] Step 2: Then start the second motor 17 to drive the turntable 13 to rotate, and at the same time, through the joint action of the connecting rod 14, the traction rod 15 and the first spring 6, drive the first screening box 7 and the second screening box 9 to move back and forth;

[0043] Step 3: The disassembled small pieces and powder are introduced into the second screening box 9 through the discharge port, and then enter the second screening box 9 after being screened by the second screen 11. The powder in the second screening box 9 enters the first screening box 7 after being screened by the first screen 10, thereby realizing the screening and recovery of the disassembled powder material.

[0044] In the present invention, by setting up a multi-layer screening mechanism, the recycling and disassembly equipment can quickly screen and recycle the disassembled powder materials, thereby effectively improving the recycling and disassembly efficiency of the lithium battery pack.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lithium battery pack recycling and disassembly device, comprising a base (1) and a main box (2), characterized in that: The main box body (2) is fixedly connected to the top of the base (1) through a column (3); a slide groove is provided on the top of the base (1); a slide rod (4) is fixedly connected in the slide groove; a slider (5) is slidably sleeved on the slider (4); a first spring (6) is sleeved on the slider (4); two ends of the first spring (6) are respectively fixedly connected to the slider (5) and the inner wall of the slide groove; a first screening box (7) is fixedly connected to the top of the slider (5); a second screening box (9) is fixedly connected to the top of the first screening box (7) through a plurality of L-shaped fixing rods (8); a first screen (10) is slidably inserted into the inner bottom of the second screening box (9); a through opening corresponding to the first screen (10) is provided on the top of the first screening box (7); a second screen (11) is slidably inserted into the top of the second screening box (9); A first motor (12) is fixedly connected to one side of the column (3); a rotating disk (13) is fixedly connected to the output end of the first motor (12); a connecting rod (14) is rotatably connected to the edge of the rotating disk (13); one end of the connecting rod (14) is rotatably connected to a traction rod (15); one end of the traction rod (15) passes through the column (3) and extends outward; and the extended end of the traction rod (15) is rotatably connected to the outer wall of the first screening box (7); A feed port is provided at the top of the main box body (2), a baffle (16) is slidably inserted in the feed port, one end of the baffle (16) penetrates the inner wall of the feed port and extends outward, a discharge port corresponding to the top of the second screening box (9) is provided at the inner bottom of the main box body (2), a second motor (17) is fixedly connected to one end of the main box body (2), a rotating rod (18) is fixedly connected to the output end of the second motor (17), and a spiral cutter (19) is arranged around one end of the rotating rod (18) located in the main box body (2).

2. A lithium battery pack recycling and disassembly equipment according to claim 1, characterized in that: The upright post (3) is provided with a sliding opening corresponding to the traction rod (15), a plurality of steel balls (20) are slidably connected in the sliding opening, and the edges of the steel balls (20) are in contact with the traction rod (15).

3. The lithium battery pack recycling and disassembly equipment according to claim 1, characterized in that: A material guide plate (21) corresponding to the first screen (10) is fixedly connected to the inner bottom of the second screening box (9).

4. The lithium battery pack recycling and disassembly equipment according to claim 1, characterized in that: The edges of the first screen (10) and the second screen (11) are fixedly connected to support rings (22), the inner wall of the second screening box (9) is fixedly connected to a plurality of positioning blocks (23), and the bottom of the support ring (22) is provided with positioning grooves corresponding to the positioning blocks (23).

5. The lithium battery pack recycling and disassembly equipment according to claim 1, characterized in that: A flow guide cover (24) is fixedly sleeved on the bottom of the discharge port of the main box body (2).

6. The lithium battery pack recycling and disassembly equipment according to claim 1, characterized in that: One end of the baffle (16) located in the feed port is fixedly sleeved with a limiting block (25).

7. The lithium battery pack recycling and disassembly equipment according to claim 6, characterized in that: A clamping rod (26) is slidably inserted into the end of the baffle (16) away from the limit block, a clamping block (27) is fixedly connected to the outer wall of the main box body (2), a clamping sleeve (28) is fixedly sleeved on the end of the clamping rod (26) close to the clamping block (27), a pull rod (29) is fixedly connected to the end of the clamping rod (26) away from the clamping sleeve (28), and a second spring (30) is sleeved on the clamping rod (26), and the two ends of the second spring (30) are respectively fixedly connected to the clamping sleeve (28) and the baffle (16).

8. The lithium battery pack recycling and disassembly equipment according to claim 1, characterized in that: The bottom of the base (1) is rotatably connected to a plurality of universal self-locking wheels (31).

9. A disassembly method for a lithium battery pack recycling and disassembly device according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: firstly, introduce the waste lithium battery pack into the main box (2) through the feed port, then start the first motor (12) to drive the rotating rod (18) to rotate, and drive the spiral cutter (19) to break and disassemble the waste lithium battery pack; Step 2: Then, the second motor (17) is started to drive the rotating disk (13) to rotate, and at the same time, through the combined action of the connecting rod (14), the traction rod (15) and the first spring (6), the first screening box (7) and the second screening box (9) are driven to move back and forth; Step 3: The disassembled small pieces and powder are introduced into the second screening box (9) through the discharge port, and then enter the second screening box (9) after being screened by the second screen (11). The powder in the second screening box (9) is then screened by the first screen (10) and enters the first screening box (7), thereby realizing screening and recovery of the disassembled powder material.

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