A diaphragm sorting device for recycling waste lithium batteries

Abstract

The present invention discloses a diaphragm sorting device for recycling waste lithium batteries, which relates to the technical field of sorting, and comprises a frame, the frame is fixedly connected with a feed frame, the inside of the feed frame is provided with a baffle channel communicating with each other up and down, the bottom of the feed frame is fixedly connected with a discharge pipe, the inside of the feed frame is fixedly connected with a fixed block on one side close to the discharge pipe, the fixed block is rotatably connected with a first baffle, and the first baffle is rotatably connected with a second baffle. When the mixed material is less, the present invention can increase the air volume by increasing the air inlet, so that the lighter diaphragm can be more easily lifted and separated by the wind, avoiding incomplete separation due to insufficient wind; when the mixed material is more, reducing the air inlet can increase the wind speed, so that the diaphragm can achieve good suspension and separation effects by using a higher wind speed without increasing energy consumption, which not only ensures the separation quality, but also avoids energy waste.

Description

Technical Field

[0001] The present invention relates to the technical field of sorting, and in particular to a diaphragm sorting device for recycling waste lithium batteries. Background Art

[0002] The diaphragm is an important component in lithium batteries, usually made of polymer materials such as polyethylene or polypropylene. Through sorting, the diaphragm can be effectively separated from other components (such as positive and negative electrode materials, electrolytes, etc.) so that these high-value materials can be recycled in a targeted manner. The diaphragm materials (such as polyethylene and polypropylene) are lighter than other residual substances in the battery (such as positive and negative electrode powders, metal fragments, etc.). In addition, the diaphragm fragments usually have a larger surface area and a relatively flat shape, which makes them more likely to displace and suspend under the action of wind, and are not as easy to deposit or entangle as granular or fibrous materials. Therefore, wind sorting can usually be used. When the airflow passes, the lighter and larger surface area diaphragm fragments are more likely to be carried away by the airflow, achieving preliminary separation from the heavier substances. However, during sorting, the feed amount of the mixed material of the diaphragm and other residual materials in the battery is not easy to control. When the feed amount is large, insufficient wind power may cause blockage and incomplete separation. Increasing wind power is more energy-consuming. When the feed amount is small, excessive wind power may cause the mixed material to scatter or equipment wear.

[0003] Based on the above considerations, the present invention designs a diaphragm sorting device for recycling waste lithium batteries. Summary of the invention

[0004] In order to overcome the shortcoming that the size of the sorting wind force cannot adapt to the feed amount of the mixed material, the present invention provides a diaphragm sorting device for recycling waste lithium batteries.

[0005] A diaphragm sorting device for recycling waste lithium batteries, comprising a frame, the frame is fixedly connected to a feed frame, the inside of the feed frame is provided with a baffle channel communicating with each other from top to bottom, the bottom of the feed frame is fixedly connected to a discharge pipe, the discharge pipe is fixedly connected to the frame, a side of the frame close to the feed frame is fixedly connected to an air duct, a side of the feed frame close to the discharge pipe is fixedly connected to a fixed block, the fixed block is rotatably connected to a first baffle, the first baffle is rotatably connected to a second baffle, the side of the feed frame close to the second baffle is fixedly connected to a first fixed block, and the first baffle is rotatably connected to a second baffle. A fixed guide rail, the first fixed guide rail is slidably connected with a sliding air guide block, the sliding air guide block is rotatably connected to the second baffle, a guide block is fixedly connected to one side of the discharge frame close to the second baffle, the guide block is rotatably connected to the guide plate, the discharge frame is fixedly connected with a solid particle flow meter, a longitudinally distributed connecting channel is connected between the discharge frame and the air duct, the frame is provided with a wind power component for sorting the diaphragm, and a driving component for driving the first baffle, the second baffle and the guide plate to rotate is provided in the discharge frame.

[0006] In one of the embodiments, the wind power component is composed of a positive pressure fan and a negative pressure fan. The negative pressure fan is installed on the side of the frame close to the air duct, and the negative pressure fan sucks air into the air duct. An air inlet is opened on the side of the unloading frame close to the first fixed guide rail, and the positive pressure fan is installed on the side of the frame close to the air inlet, and the positive pressure fan blows air into the unloading frame.

[0007] In one embodiment, the driving assembly includes a cylinder, which is fixedly connected to the unloading frame, and the unloading frame is fixedly connected to a second fixed guide rail symmetrically distributed along the unloading frame, and a lifting frame is slidably connected between the symmetrically distributed second fixed guide rails, and the lifting frame is fixedly connected to the telescopic rod of the cylinder, and the lifting frame is movably connected to the first baffle.

[0008] In one of the embodiments, a rotating rod is further included, wherein the rotating rod is rotatably connected to the guide plate, and the lifting frame is movably connected to the rotating rod.

[0009] In one of the embodiments, an adjustment plate is further included, and the adjustment plate is rotatably connected to the baffle channel of the discharge frame near the inlet.

[0010] In one of the embodiments, a pull rod is further included, and the pull rod is rotatably connected between the adjustment plate and the lifting frame.

[0011] In one of the embodiments, it further includes a longitudinally distributed blocking block, wherein the blocking block is fixedly connected to one side of the deflection channel of the blanking frame close to the connecting channel.

[0012] In one embodiment, the thickness of the blocking block gradually decreases from top to bottom.

[0013] In one of the embodiments, it further includes heating wires uniformly distributed longitudinally, and the heating wires are fixedly connected to a side of the blanking frame close to the air inlet.

[0014] In one of the embodiments, it further includes observation windows evenly distributed longitudinally, wherein the observation windows are fixedly connected to the blanking frame and are used to observe the conditions inside the blanking frame.

[0015] Compared with the prior art, the present invention has the following advantages: when the mixed material is less, the air inlet can be increased to increase the air volume, so that the lighter diaphragm can be more easily lifted and separated by the wind, thereby avoiding incomplete separation due to insufficient wind force; when the mixed material is more, the wind speed can be increased by reducing the air inlet, so that the diaphragm can achieve good suspension and separation effects by utilizing a higher wind speed without increasing energy consumption, thereby ensuring the separation quality and avoiding energy waste.

[0016] The present invention can adapt to different mixed material amounts by adjusting the size of the air inlet, and can flexibly control the processing capacity of the sorting system to ensure that high working efficiency and sorting accuracy can be maintained under different loads.

[0017] The present invention can prevent the scattering of mixed materials or equipment wear caused by excessively high wind speed and the blockage problem caused by excessively low wind speed by reasonably adjusting the wind speed.

[0018] When the amount of mixed material in the feed frame increases, the adjusting plate rotates to gradually block the entrance of the discharge frame to reduce the feed of the mixed material. When the amount of mixed material decreases, the adjusting plate rotates to gradually open the entrance of the discharge frame to increase the feed of the mixed material, thereby achieving flexible adjustment of the feed amount.

[0019] The present invention guides the diaphragm into the connecting channel through the blocking block, thereby preventing the diaphragm from excessively floating upwards under the blowing force of the positive pressure fan, thereby affecting the sorting efficiency.

[0020] The present invention utilizes a heating wire to heat the air, so that the internal environment is in a dry sorting environment, and the diaphragm is prevented from being attached to the inner wall of the blanking frame during sorting, so that the diaphragm can be sorted smoothly even in a humid environment. 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 This is a three-dimensional structural cross-sectional view of the first viewing angle of the present invention.

[0023] Figure 3It is a cross-sectional view of the three-dimensional structure from a second viewing angle of the present invention.

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the first baffle plate, the second baffle plate and other components of the present invention.

[0025] Figure 5 It is a three-dimensional structural schematic diagram of the cylinder, frame, lifting frame and other components of the present invention.

[0026] Figure 6 It is a three-dimensional structural schematic diagram of the guide plate, lifting frame, rotating rod and other components of the present invention.

[0027] Figure 7 It is a three-dimensional structural schematic diagram of the blanking frame, the adjustment plate, the pull rod and other components of the present invention.

[0028] Figure 8 It is a schematic diagram of the three-dimensional structure of the blocking block, heating wire and other components of the present invention.

[0029] Figure numbers: 101_frame, 102_unloading frame, 103_discharging pipe, 104_air duct, 105_fixed block, 106_first baffle, 107_second baffle, 108_first fixed guide rail, 109_sliding air guide block, 110_guide plate, 111_guide block, 112_solid particle flowmeter, 201_cylinder, 202_second fixed guide rail, 203_lifting frame, 204_rotating rod, 301_adjusting plate, 302_pull rod, 401_blocking block, 501_heating wire, 601_observation window. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0031] Embodiment 1: A diaphragm separation device for recycling waste lithium batteries, combined with the attached Figure 1 To Attachment Figure 4, including a frame 101, a blanking frame 102 is fixedly connected to the left side of the frame 101, a baffle channel communicating with each other from top to bottom is opened inside the blanking frame 102, a discharge pipe 103 is fixedly connected to the bottom of the blanking frame 102, the front and rear sides and the top of the discharge pipe 103 are open, the discharge pipe 103 is fixedly connected to the frame 101, an air duct 104 is fixedly connected to the upper right side of the frame 101, a fixed block 105 is fixedly connected to the lower side of the blanking frame 102, a first baffle 106 is rotatably connected to the fixed block 105, the first baffle 106 is rotatably connected to the second baffle 107, and a first fixed guide rail 108 is fixedly connected to one side of the blanking frame 102 near the second baffle 107 The first fixed guide rail 108 is slidably connected to a sliding air guide block 109 along the left and right directions, and the sliding air guide block 109 is rotatably connected to the second baffle plate 107. A guide block 111 is fixedly connected to the side of the discharge frame 102 close to the second baffle plate 107, and the guide block 111 is rotatably connected to the guide plate 110. A solid particle flow meter 112 is fixedly connected to the side of the discharge frame 102 close to the inlet. There are two longitudinally distributed connecting channels between the discharge frame 102 and the air duct 104. The frame 101 is provided with a wind power component for sorting the diaphragm, and a driving component for driving the first baffle plate 106, the second baffle plate 107 and the guide plate 110 to rotate is provided in the discharge frame 102.

[0032] The wind power component can be composed of a positive pressure fan and a negative pressure fan. The negative pressure fan can be installed on the side of the frame 101 close to the air duct 104, and the negative pressure fan sucks air into the air duct 104. An air inlet is opened on the side of the unloading frame 102 close to the first fixed guide rail 108. The positive pressure fan can be installed on the side of the frame 101 close to the air inlet, and the positive pressure fan blows air into the unloading frame 102.

[0033] Combined with Figure 5 and attached Figure 6 The driving assembly includes a cylinder 201, which is fixedly connected to the front lower part of the blanking frame 102, and the blanking frame 102 is fixedly connected with a second fixed guide rail 202 which is symmetrically distributed along the left and right sides of the blanking frame 102, and a lifting frame 203 is slidably connected between the second fixed guide rails 202 which are symmetrically distributed along the up and down directions, and the lifting frame 203 is fixedly connected to the telescopic rod of the cylinder 201, and the lifting frame 203 is movably connected to the first baffle plate 106, and the guide plate 110 is rotatably connected with a rotating rod 204, and the lifting frame 203 is movably connected to the rotating rod 204.

[0034] The mixed material flows down along the material discharge frame 102. When turning, the speed slows down. The air flows upward from the lower air outlet under the coordinated action of the positive pressure fan and the negative pressure fan. Since the material with high density and small particles is subject to small air resistance, the sheet diaphragm with low density and large surface area is subject to large air resistance, so that the heavier granular material falls along the material discharge frame 102, and the diaphragm in the material discharge frame 102 enters the air duct 104 from the connecting channel with the air flow and is taken away. The material without the diaphragm finally enters the discharge pipe 103 along the material discharge frame 102 for discharge.

[0035] In the above process, the solid particle flow meter 112 detects the flow rate of the mixed material in the discharge frame 102. According to the detected flow value, the solid particle flow meter 112 sends a signal, the control module receives the signal, and controls the telescopic rod of the cylinder 201 to extend or retract the corresponding length. When the flow rate of the mixed material increases, the telescopic rod of the cylinder 201 extends to drive the lifting frame 203 to move downward, thereby driving the first baffle 106 and the second baffle 107 to swing downward, and the sliding air guide block 109 slides horizontally along the first fixed guide rail 108 to the side close to the first baffle 106, so that the angle between the first baffle 106 and the second baffle 107 is reduced to reduce the air inlet, thereby increasing the wind speed. At the same time, the downward movement of the lifting frame 203 will drive the guide plate 110 to swing to the side close to the first baffle 106 and the second baffle 107 through the rotating rod 204, further reducing the air inlet, thereby further increasing the wind speed. In this way, through the joint action of the first baffle 106, the second baffle 107 and the guide plate 110, the air inlet can be reduced to adapt to the increase in material, thereby increasing the wind speed and accelerating the sorting of the diaphragm.

[0036] When the flow rate of the mixed material decreases, the telescopic rod of the cylinder 201 extends to drive the lifting frame 203 to move upward, thereby driving the first baffle 106 and the second baffle 107 to swing upward, and the sliding air guide block 109 slides horizontally along the first fixed guide rail 108 to the side away from the first baffle 106, so that the angle between the first baffle 106 and the second baffle 107 increases to increase the air inlet. At the same time, the upward movement of the lifting frame 203 will drive the guide plate 110 to swing to the side away from the first baffle 106 and the second baffle 107 through the rotating rod 204, further expanding the air inlet. In this way, the combined effect of the first baffle 106, the second baffle 107 and the guide plate 110 can adapt to the reduction of material and adjust the air inlet, thereby increasing the air intake volume and reducing the wind speed.

[0037] In summary, when the mixed material is less, the present invention can increase the air volume by increasing the air inlet, so that the lighter diaphragm can be more easily lifted and separated by the wind, avoiding incomplete separation due to insufficient wind force; when the mixed material is more, reducing the air inlet can increase the wind speed, so that without increasing energy consumption, the diaphragm can achieve good suspension and separation effects by utilizing higher wind speed, which not only ensures the separation quality but also avoids energy waste.

[0038] The present invention can adapt to different mixed material amounts by adjusting the size of the air inlet, and can flexibly control the processing capacity of the sorting system to ensure that high working efficiency and sorting accuracy can be maintained under different loads.

[0039] The present invention can prevent the scattering of mixed materials or equipment wear caused by excessively high wind speed and the blockage problem caused by excessively low wind speed by reasonably adjusting the wind speed.

[0040] Embodiment 2: Based on embodiment 1, Figure 7 , and also includes an adjustment plate 301, which is rotatably connected to the side of the baffle channel of the feed frame 102 near the entrance, and a pull rod 302 is rotatably connected between the front side of the adjustment plate 301 and the lifting frame 203. When the lifting frame 203 moves up and down, the adjustment plate 301 is driven to rotate through the pull rod 302. When the mixed material increases, the adjustment plate rotates to gradually block the entrance of the feed frame 102 to reduce the feeding of the mixed material. When the mixed material decreases, the adjustment plate rotates to gradually open the entrance of the feed frame 102 to increase the feeding of the mixed material.

[0041] Combined with Figure 8 , and also includes two longitudinally distributed blocking blocks 401, which are fixed to one side of the baffle channel close to the connecting channel of the unloading frame 102. The thickness of the blocking block 401 gradually decreases from top to bottom. In the process of blowing the diaphragm upward, the diaphragm may not directly enter the connecting channel, but float upward in transition, and can only pass through the connecting channel mouth downward with other heavy materials. It may take many attempts to successfully enter the connecting channel, which reduces the sorting efficiency. Therefore, the diaphragm is directly introduced into the connecting channel through the blocking block 401 to prevent the diaphragm from excessively floating upward under the blowing force of the positive pressure fan.

[0042] Combined with Figure 2 and attached Figure 8 , and also includes a plurality of longitudinally evenly distributed heating wires 501, the heating wires 501 are fixedly connected to one side of the blanking frame 102 close to the air inlet, and in a humid environment, in order to avoid the diaphragm sticking to the inner wall of the blanking frame 102 during sorting, it is necessary to turn on the heating wires 501 to heat the internal air so that the internal environment is in a dry sorting environment, so that the diaphragm can be sorted smoothly even in a humid environment.

[0043] Combined with Figure 1 , and also includes four observation windows 601 evenly distributed longitudinally, two of which are fixedly connected to the front side of the blanking frame 102, and the other two are fixedly connected to the rear side of the blanking frame 102, for observing the material conditions inside the blanking frame 102.

[0044] While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.The scope of the following claims is to be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures and functions.

Claims

1. A diaphragm sorting device for recycling waste lithium batteries, comprising a frame (101), the frame (101) being fixedly connected to a material discharge frame (102), the material discharge frame (102) having a baffle channel communicating with each other from top to bottom, a discharge pipe (103) being fixedly connected to the bottom of the material discharge frame (102), the discharge pipe (103) being fixedly connected to the frame (101), and a wind pipe (104) being fixedly connected to a side of the frame (101) close to the material discharge frame (102), Its characteristics are: A fixed block (105) is fixedly connected to one side of the blanking frame (102) near the discharge pipe (103); the fixed block (105) is rotatably connected to a first baffle plate (106); the first baffle plate (106) is rotatably connected to a second baffle plate (107); a first fixed guide rail (108) is fixedly connected to one side of the blanking frame (102) near the second baffle plate (107); the first fixed guide rail (108) is slidably connected to a sliding air guide block (109); the sliding air guide block (109) is rotatably connected to the second baffle plate (107); the blanking frame (10 2) A guide block (111) is fixedly connected to one side of the interior close to the second baffle (107); the guide block (111) is rotatably connected to the guide plate (110); the discharge frame (102) is fixedly connected to a solid particle flow meter (112); a longitudinally distributed connecting channel is connected between the discharge frame (102) and the air duct (104); the frame (101) is provided with a wind power component for sorting the diaphragm; and a driving component for driving the first baffle (106), the second baffle (107) and the guide plate (110) to rotate is provided in the discharge frame (102).

2. A diaphragm separation device for recycling waste lithium batteries according to claim 1, Its characteristics are: The wind power component is composed of a positive pressure fan and a negative pressure fan. The negative pressure fan is installed on a side of the frame (101) close to the air duct (104), and the negative pressure fan sucks air into the air duct (104). An air inlet is opened on a side of the unloading frame (102) close to the first fixed guide rail (108). The positive pressure fan is installed on a side of the frame (101) close to the air inlet, and the positive pressure fan blows air into the unloading frame (102).

3. A diaphragm separation device for recycling waste lithium batteries according to claim 2, Its characteristics are: The driving assembly comprises a cylinder (201), the cylinder (201) being fixedly connected to the unloading frame (102), the unloading frame (102) being fixedly connected to a second fixed guide rail (202) symmetrically distributed along the unloading frame (102), a lifting frame (203) being slidably connected between the symmetrically distributed second fixed guide rails (202), the lifting frame (203) being fixedly connected to the telescopic rod of the cylinder (201), and the lifting frame (203) being movably connected to the first baffle (106).

4. A diaphragm separation device for recycling waste lithium batteries according to claim 3, Its characteristics are: It also includes a rotating rod (204), the rotating rod (204) being rotatably connected to the guide plate (110), and the lifting frame (203) being movably connected to the rotating rod (204).

5. A diaphragm separation device for recycling waste lithium batteries according to claim 4, Its characteristics are: It also includes an adjustment plate (301), wherein the adjustment plate (301) is rotatably connected to a side of the baffle channel of the material discharge frame (102) close to the inlet.

6. A diaphragm separation device for recycling waste lithium batteries according to claim 5, Its characteristics are: It also includes a pull rod (302), wherein the pull rod (302) is rotatably connected between the adjustment plate (301) and the lifting frame (203).

7. A diaphragm separation device for recycling waste lithium batteries according to claim 6, Its characteristics are: It also includes a longitudinally distributed blocking block (401), the blocking block (401) being fixedly connected to one side of the baffle channel of the blanking frame (102) close to the connecting channel.

8. A diaphragm separation device for recycling waste lithium batteries according to claim 7, Its characteristics are: The thickness of the blocking block (401) gradually decreases from top to bottom.

9. A diaphragm separation device for recycling waste lithium batteries according to claim 8, Its characteristics are: It also includes a heating wire (501) evenly distributed in the longitudinal direction, wherein the heating wire (501) is fixedly connected to a side of the blanking frame (102) close to the air inlet.

10. A diaphragm separation device for recycling waste lithium batteries according to claim 9, Its characteristics are: It also includes observation windows (601) evenly distributed in the longitudinal direction, wherein the observation windows (601) are fixedly connected to the blanking frame (102) and are used to observe the situation inside the blanking frame (102).

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