Waste lithium ion battery electrolyte recovery device

Abstract

The utility model discloses a waste lithium ion battery electrolyte recovery device which comprises a main machine frame, a second transverse plate frame and a first transverse plate frame, the second transverse plate frame and the first transverse plate frame are fixed to the left side and the right side of the main machine frame respectively, a hydraulic puncture machine is installed at the top end of the main machine frame, and sliding tables are installed on the outer walls, close to each other, of the second transverse plate frame and the first transverse plate frame in a sliding mode. A four-corner pneumatic clamp is rotationally installed between the two sliding tables, and a Y-axis lead screw linear discharging module for driving the sliding tables and the four-corner pneumatic clamp to be away from or close to the hydraulic puncture machine is installed in the first transverse plate frame. According to the utility model, the hydraulic puncturing machine completes puncturing operation of a liquid injection port, then the belt wheel driving unit and the Y-axis screw rod linear blanking module enable the four-corner pneumatic clamp and the waste lithium ion battery pack to move out, and in the moving-out process, the driven gear rack dumping structure enables the four-corner pneumatic clamp and the waste lithium ion battery pack to turn over; and recycling is completed until the electrolyte is poured out.

Description

Technical Field

[0001] This utility model relates to the technical field of waste lithium-ion recycling equipment, specifically a waste lithium-ion battery electrolyte recycling device. Background Technology

[0002] The recycling of electrolyte from spent lithium-ion batteries is an important environmental protection and resource recovery process. It aims to reduce environmental pollution and achieve resource reuse by extracting and regenerating valuable components from the electrolyte. The electrolyte in a lithium-ion battery consists of a solvent and a lithium salt. The solvent is primarily a carbonate, while the lithium salt is typically lithium hexafluorophosphate. The electrolyte's role in the battery is to conduct electricity, allowing lithium ions to move freely during charging and discharging, ensuring the battery's normal operation. The recycling process typically includes steps such as collection and pretreatment, electrolyte separation, regeneration, and resource recovery. In addition to restoring the electrolyte's functionality, the recycling process also extracts metallic elements such as lithium, cobalt, and nickel, which play important roles in battery manufacturing. A key step in the pretreatment stage of spent lithium-ion battery electrolyte recycling is extracting the electrolyte from the battery. Workers first use a puncture needle to puncture the electrolyte filling port of the battery pack, which typically contains solvents and lithium salts. By puncturing the injection port, the electrolyte flows out, allowing for subsequent separation, regeneration, and resource recovery. The purpose of using the puncture needle is to ensure smooth electrolyte flow while minimizing damage to the battery pack structure. Operators typically operate with extreme care to avoid dangerous situations such as a sudden release of internal pressure or battery explosion caused by puncturing the battery pack. Although puncture is a commonly used method for electrolyte extraction, its efficiency is relatively low. After each puncture, operators need to manually empty the electrolyte and ensure that all electrolyte has been extracted. However, the complex internal structure of the battery pack and the uneven distribution of electrolyte within the battery mean that some electrolyte may not be completely drained. Furthermore, operators must handle each battery carefully during repeated punctures to ensure that electrolyte does not splash out or pollute the environment. This series of steps undoubtedly increases the complexity and workload of the recycling operation. Utility Model Content

[0003] The purpose of this invention is to provide a waste lithium-ion battery electrolyte recycling device. The waste lithium-ion battery pack to be punctured for electrolyte extraction is placed in four corner pneumatic clamps for fixation, and a hydraulic puncture machine completes the puncture operation of the injection port. Subsequently, the pulley drive unit and the Y-axis lead screw linear feeding module move the four corner pneumatic clamps and the waste lithium-ion battery pack out. During the removal process, the driven gear rack tilting structure causes the four corner pneumatic clamps and the waste lithium-ion battery pack to flip over until the electrolyte is poured out and recycling is completed, thereby solving the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a waste lithium-ion battery electrolyte recycling device, comprising a main frame and a second horizontal plate frame and a first horizontal plate frame respectively fixed on the left and right sides of the main frame. A hydraulic piercing machine is installed at the top of the main frame. Slide tables are slidably installed on the outer walls of the second and first horizontal plate frames that are close to each other. Four-sided pneumatic clamps are rotatably installed between the two slide tables. A Y-axis lead screw is installed inside the first horizontal plate frame to drive the slide tables and the four-sided pneumatic clamps away from or towards the hydraulic piercing machine. The linear feeding module has a pulley drive unit installed on one outer wall of the first horizontal plate frame to drive the Y-axis lead screw linear feeding module. The second horizontal plate frame has a driven gear rack tilting structure installed inside to force the four-corner pneumatic clamps to flip when the slide table and the four-corner pneumatic clamps slide away from the hydraulic piercing machine. A PLC control panel is installed on the outer wall of the second horizontal plate frame away from the first horizontal plate frame. The output terminal of the PLC control panel is electrically connected to the input terminals of the pulley drive unit, the hydraulic piercing machine, and the four-corner pneumatic clamps.

[0005] Preferably, two parallel and symmetrical tracks are installed on the outer walls of the first and second horizontal plates that are close to each other, and a sliding sleeve for sliding cooperation with the tracks is integrally formed on the outer wall of the slide table.

[0006] Preferably, the four-corner pneumatic clamp includes a support plate rotatably mounted between the two slides, two symmetrical cylinder seats fixed on the front and rear outer walls of the support plate, and a cylinder mounted on one side outer wall of the cylinder seats, wherein a right-angle arm is fixed to the top of the piston rod of the cylinder.

[0007] Preferably, the right-angle arm is made of stainless steel.

[0008] Preferably, the driven gear rack tilting structure includes a driven shaft, a main shaft, and a worm shaft rotatably mounted on the outer wall of one side of the slide. One end of the driven shaft is fixed with a worm wheel that meshes with the worm shaft. One end of the driven shaft extends to the outside of the slide and is fixedly connected to the outer wall of one side of the support plate. A driven gear is installed at the bottom of the second cross plate frame. A linear rack is fixed at one end of the main shaft. The linear rack and the driven gear mesh with each other. A bevel gear transmission structure for driving the worm shaft to rotate is installed at the other end of the main shaft surface.

[0009] Preferably, the pulley drive unit consists of a stepper motor and a synchronous pulley mounted on the output end of the stepper motor. The output end of the stepper motor drives the Y-axis lead screw linear feeding module to work through the synchronous pulley and belt.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This waste lithium-ion battery electrolyte recycling device places the waste lithium-ion battery pack to be punctured for electrolyte extraction into four corner pneumatic clamps for fixation, and a hydraulic puncture machine completes the puncture operation of the injection port. Subsequently, the pulley drive unit and the Y-axis lead screw linear feeding module move the four corner pneumatic clamps and the waste lithium-ion battery pack out. During the removal process, the driven gear rack tilting structure causes the four corner pneumatic clamps and the waste lithium-ion battery pack to flip over until the electrolyte is poured out and the recycling is completed. By using four corner pneumatic clamps to fix the battery, it can be ensured that the battery does not move unexpectedly during the puncture process, thereby reducing the risk caused by the unstable position of the battery. Moreover, the four corner pneumatic clamps can... The battery pack is fixed under high-precision control, effectively preventing damage or leakage due to external forces during puncture. The pulley drive unit and Y-axis lead screw linear feeding module can quickly move the battery pack after puncture, reducing manual handling time and avoiding unnecessary waiting and tedious operations. As the battery pack is removed, the driven gear rack tilting structure effectively and quickly pours out the electrolyte by controlling the rotation of the clamp and the battery pack. This process can significantly shorten the recycling time and improve the overall efficiency of the recycling operation. It is especially suitable for recycling sites that process large quantities of waste batteries and can ensure that the battery pack is fully rotated, thereby pouring out as much electrolyte as possible and maximizing the electrolyte recovery rate. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0012] Figure 2 This is a side view of the structure of this utility model;

[0013] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0014] Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0015] Figure 5 This is a three-dimensional structural diagram of the four-sided corner pneumatic clamp of this utility model.

[0016] In the diagram: 1. Main frame; 2. Hydraulic piercing machine; 3. First horizontal plate frame; 4. Second horizontal plate frame; 5. PLC control panel; 6. Slide table; 7. Y-axis lead screw linear feeding module; 8. Pulley drive unit; 9. Four-corner pneumatic clamp; 901. Support plate; 902. Cylinder seat; 903. Cylinder; 904. Right angle arm; 10. Driven gear rack tilting structure; 1001. Worm shaft; 1002. Driven shaft; 1003. Worm wheel; 1004. Main shaft; 1005. Bevel gear transmission structure; 1006. Driven gear; 1007. Linear rack. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] Please see Figure 1-5 An embodiment of this utility model is provided: a waste lithium-ion battery electrolyte recycling device, including a main frame 1 and a second horizontal plate frame 4 and a first horizontal plate frame 3 fixed on the left and right sides of the main frame 1 respectively. A hydraulic piercing machine 2 is installed at the top of the main frame 1. Workers can place a waste liquid recycling box between the two first horizontal plate frames 3 and the second horizontal plate frames 4 to collect the poured electrolyte.

[0019] Slide tables 6 are slidably mounted on the outer walls of the second horizontal plate frame 4 and the first horizontal plate frame 3, respectively. Four-sided pneumatic clamps 9 are rotatably mounted between the two slide tables 6. A Y-axis lead screw linear feeding module 7 is installed inside the first horizontal plate frame 3 to drive the slide tables 6 and the four-sided pneumatic clamps 9 away from or near the hydraulic piercing machine 2. A pulley drive unit 8 is installed on one side of the outer wall of the first horizontal plate frame 3 to drive the Y-axis lead screw linear feeding module 7. A pulley drive unit 8 is installed inside the second horizontal plate frame 4 to drive the slide tables 6 and the four-sided pneumatic clamps 9 away from or near the hydraulic piercing machine 2. When the corner pneumatic clamp 9 slides away from the hydraulic puncture machine 2, it forces the corner pneumatic clamp 9 to flip. The driven gear rack tilting structure 10 is installed on the outer wall of the second horizontal plate frame 4 away from the first horizontal plate frame 3. The output end of the PLC control panel 5 is electrically connected to the input end of the pulley drive unit 8, the hydraulic puncture machine 2, and the corner pneumatic clamp 9. The hydraulic puncture machine 2 controls the puncture force through a precise hydraulic system to ensure that the puncture process is both effective and does not damage the battery pack structure.

[0020] The pulley drive unit 8 consists of a stepper motor and a synchronous pulley mounted on the output end of the stepper motor. The output end of the stepper motor drives the Y-axis lead screw linear feeding module 7 through the synchronous pulley and belt. The Y-axis lead screw linear feeding module 7 and the pulley drive unit 8 control the movement path of the battery pack through the motor to ensure that the battery pack can accurately enter the feeding area and dock with the driven gear rack tilting structure 10.

[0021] Two parallel symmetrical tracks are installed on the outer walls of the first horizontal plate frame 3 and the second horizontal plate frame 4, which are close to each other. The outer wall of the slide table 6 is integrally formed with a sliding sleeve for sliding cooperation with the track. The four-corner pneumatic clamp 9 includes a support plate 901 rotatably installed between the two slide tables 6, two symmetrical cylinder seats 902 fixed on the front and rear outer walls of the support plate 901, and a cylinder 903 installed on one side of the outer wall of the cylinder seat 902. A right-angle arm 904 is fixed to the top of the piston rod of the cylinder 903. The right-angle arm 904 is made of stainless steel. After the material is made, the staff places the waste lithium-ion battery pack to be recycled on the tray 901 and adjusts the position to ensure that the liquid injection port of the waste lithium-ion battery pack is opposite to the piercing part of the hydraulic piercing machine 2 after entering the hydraulic piercing machine 2. Then, the staff starts the cylinder 903 through the PLC control panel 5 to work. The cylinder 903 pushes the right-angle arm 904 towards the battery pack until the battery pack is clamped to ensure that the battery pack does not shift position during piercing and liquid discharge.

[0022] The driven gear rack tilting structure 10 includes a driven shaft 1002 and a main shaft 1004 rotatably mounted on both sides inside the slide table 6, and a worm shaft 1001 rotatably mounted on one side of the outer wall of the slide table 6. One end of the surface of the driven shaft 1002 is fixed with a worm wheel 1003 that meshes with the worm shaft 1001. One end of the driven shaft 1002 extends to the outside of the slide table 6 and is fixedly connected to one side of the outer wall of the support plate 901. A driven gear 1006 is installed at the bottom of the second cross plate frame 4. A linear rack 1007 is fixed at one end of the main shaft 1004. The linear rack 1007 and the driven gear 1006 mesh with each other. A bevel gear transmission structure 1005 for driving the worm shaft 1001 to rotate is installed at the other end of the surface of the main shaft 1004.

[0023] When the pallet 901 and slide 6 move along the extension direction of the first horizontal frame 3 and the second horizontal frame 4, the main shaft 1004 is driven to rotate because it meshes with the driven gear 1006 through the linear rack 1007. Then, the main shaft 1004 drives the worm shaft 1001 to rotate through the bevel gear transmission structure 1005, so that the worm shaft 1001 drives the driven shaft 1002 and the pallet 901 to rotate through the worm wheel 1003. That is, the four-corner pneumatic clamp 9 and the battery pack are tilted, so as to precisely control the flipping angle and ensure that the electrolyte in the battery pack can be completely poured out.

[0024] Before starting the operation, the staff needs to inspect the appearance of the waste lithium-ion battery pack to ensure that there is no external damage and that the battery pack contains electrolyte and has not leaked. If there is obvious damage or leakage, the battery pack should be immediately removed and not recycled. The waste lithium-ion battery pack is placed on the four-corner pneumatic clamps 9, and the tightness of the clamps is controlled by air pressure to firmly fix the battery pack in the clamps, avoiding unnecessary movement or vibration during the puncture process. After the clamps are fixed, the staff inputs the start command through the PLC control panel 5 to control the operation of the hydraulic puncture machine 2, ensuring that the puncture machine is accurately positioned according to the predetermined route. The hydraulic puncture machine 2 will accurately puncture the electrolyte port of the battery pack. After the hydraulic puncture machine 2 completes the puncture, the staff needs to confirm the electrolyte injection. The opening has been completely pierced, and there is no electrolyte leakage. After the piercing operation is completed, the staff starts the pulley drive unit 8 through the PLC control panel 5. The Y-axis lead screw linear feeding module 7 and the pulley drive unit 8 then move the battery pack and the four-corner pneumatic clamps 9 from the hydraulic piercing machine 2 to the designated position. During this process, the four-corner pneumatic clamps 9 will pour out the liquid under the drive of the driven gear rack tilting structure 10. That is, after flipping, the electrolyte will be poured out. The staff needs to observe the liquid pouring process to ensure that the liquid is completely poured out and that there is no residual electrolyte. After this process is completed, the staff stops the flipping action and resets all parts through the PLC control panel 5 to facilitate the tilting of the next battery. After the liquid is poured out, the staff needs to remove the battery pack from the recycling area for further processing or recycling.

Claims

1. A waste lithium-ion battery electrolyte recycling device, characterized in that: Includes a main frame (1) and a second horizontal plate frame (4) and a first horizontal plate frame (3) fixed on the left and right sides of the main frame (1) respectively. A hydraulic piercing machine (2) is installed at the top of the main frame (1). A slide table (6) is slidably installed on the outer wall of the second horizontal plate frame (4) and the first horizontal plate frame (3) close to each other. A four-sided pneumatic clamp (9) is rotatably installed between the two slide tables (6). A Y-axis screw linear feeding module (7) is installed inside the first horizontal plate frame (3) to drive the slide table (6) and the four-sided pneumatic clamp (9) away from or close to the hydraulic piercing machine (2). One side of the first horizontal plate frame (3) The outer wall is equipped with a pulley drive unit (8) for driving the Y-axis lead screw linear feeding module (7). The interior of the second horizontal plate frame (4) is equipped with a driven gear rack tilting structure (10) for forcing the four-corner pneumatic clamp (9) to flip when the slide table (6) and the four-corner pneumatic clamp (9) slide away from the hydraulic piercing machine (2). The outer wall of the second horizontal plate frame (4) away from the first horizontal plate frame (3) is equipped with a PLC control panel (5). The output end of the PLC control panel (5) is electrically connected to the input end of the pulley drive unit (8), the hydraulic piercing machine (2), and the four-corner pneumatic clamp (9).

2. The waste lithium-ion battery electrolyte recycling device according to claim 1, characterized in that: Two parallel and symmetrical tracks are installed on the outer walls of the first horizontal plate frame (3) and the second horizontal plate frame (4) respectively. The outer wall of the slide table (6) is integrally formed with a sliding sleeve for sliding cooperation with the track.

3. The waste lithium-ion battery electrolyte recycling device according to claim 2, characterized in that: The four-corner pneumatic clamp (9) includes a support plate (901) rotatably mounted between two slides (6), two symmetrical cylinder seats (902) fixed on the front and rear outer walls of the support plate (901), and a cylinder (903) mounted on one side outer wall of the cylinder seat (902). The piston rod of the cylinder (903) is fixed with a right-angle arm (904).

4. The waste lithium-ion battery electrolyte recycling device according to claim 3, characterized in that: The right-angle arm (904) is made of stainless steel.

5. The waste lithium-ion battery electrolyte recycling device according to claim 3, characterized in that: The driven gear rack tilting structure (10) includes a driven shaft (1002) rotatably mounted on both sides inside the slide (6), a main shaft (1004), and a worm shaft (1001) rotatably mounted on one side of the outer wall of the slide (6). One end of the surface of the driven shaft (1002) is fixed with a worm wheel (1003) that meshes with the worm shaft (1001). One end of the driven shaft (1002) extends through to the outside of the slide (6) and is fixedly connected to one side of the outer wall of the support plate (901). A driven gear (1006) is installed at the bottom of the second cross plate frame (4). A linear rack (1007) is fixed at one end of the main shaft (1004). The linear rack (1007) and the driven gear (1006) mesh with each other. A bevel gear transmission structure (1005) for driving the worm shaft (1001) to rotate is installed at the other end of the surface of the main shaft (1004).

6. The waste lithium-ion battery electrolyte recycling device according to claim 1, characterized in that: The pulley drive unit (8) consists of a stepper motor and a synchronous pulley installed at the output end of the stepper motor. The output end of the stepper motor drives the Y-axis lead screw linear feeding module (7) through the synchronous pulley and belt.

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