Copper-aluminum sorting device for waste lithium battery
By using an image acquisition device and control unit to automatically adjust the parameters of the gravity screen and blower in the copper-aluminum sorting device for waste lithium batteries, the problem of low efficiency of manual adjustment is solved, achieving efficient copper-aluminum sorting and reducing costs and material waste.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG TIANNENG NEW MATERIAL CO LTD
- Filing Date
- 2025-02-19
- Publication Date
- 2026-04-28
AI Technical Summary
Existing methods for sorting copper and aluminum from waste lithium batteries rely on manual adjustments, resulting in low efficiency and an inability to keep up with changes in materials, leading to significant material waste.
An image acquisition device is used to capture images at the outlet of the gravity screen. Combined with the control unit, the color distribution of the screened material is determined, and the parameters of the gravity screen and the blower are automatically adjusted to achieve efficient sorting without human intervention.
It improved sorting efficiency, reduced labor costs, reduced material waste, and improved the purity of copper and aluminum.
Smart Images
Figure CN224168016U_ABST
Abstract
Description
[0001] This application claims priority to a domestic patent application filed on December 12, 2024, with application number CN202411824704.0 and entitled "Method and Apparatus for Copper-Aluminum Sorting of Waste Lithium Batteries", the contents of which are incorporated herein by reference in part. Technical Field
[0002] This utility model relates to the field of waste lithium battery recycling technology, and in particular to a copper-aluminum sorting device for waste lithium batteries. Background Technology
[0003] Waste lithium-ion batteries contain significant amounts of copper and aluminum. To recycle these components, current processes involve physically crushing and screening the remaining copper and aluminum material, then feeding this material into a grinding mill for fine grinding and powdering. This produces a large amount of copper and aluminum powder, which is then separated by a gravity separator. However, the purity of the copper and aluminum in this powder is low, affecting its recycling value. Even after gravity separation, the traditional method of separating copper and aluminum from waste lithium batteries relies on manual intervention. Adjustments are made based on the observed output of copper and aluminum, which is inefficient, cannot keep up with changes in material composition, and results in significant material waste. Utility Model Content
[0004] The main purpose of this invention is to propose a copper-aluminum sorting device for waste lithium batteries, which aims to solve the problem of low efficiency caused by manual adjustment in existing waste lithium battery copper-aluminum sorting methods.
[0005] To achieve the above objectives, the waste lithium battery copper-aluminum sorting device proposed in this utility model includes a first specific gravity screen, a second specific gravity screen, a blower, and a control unit. The blower is installed at the first specific gravity screen and the second specific gravity screen. A first image acquisition device is installed at the outlet of the first specific gravity screen to capture a first image of the screen surface. A second image acquisition device is installed at the outlet of the second specific gravity screen to capture a second image of the screen surface.
[0006] The control unit is used to acquire a first image and a second image, so as to determine whether the first sieve output in the first specific gravity sieve is qualified based on the color distribution of the first image, and to determine whether the second sieve output in the second specific gravity sieve is qualified based on the color distribution of the second image.
[0007] The control unit is also used to control the excitation parameters of the first and second specific gravity screens and the parameters of the blower.
[0008] In some embodiments, the waste lithium battery copper-aluminum sorting device further includes a box vibrating screen, wherein both the first specific gravity screen and the second specific gravity screen are connected to the box vibrating screen.
[0009] In some embodiments, the waste lithium battery copper-aluminum sorting device further includes a transfer hopper, which has a discharge port. The transfer hopper is located above the box vibrating screen, and the discharge port is connected to the box vibrating screen.
[0010] In some embodiments, a first diversion device is connected below the first specific gravity screen, and a second diversion device is connected below the second specific gravity screen.
[0011] In some embodiments, the waste lithium battery copper-aluminum sorting device further includes a tubular vibrating conveyor and a screw conveyor, wherein the tubular vibrating conveyor is located below the first diversion device and below the second diversion device; the inlet end of the tubular vibrating conveyor is connected to the first diversion device and the second diversion device, and the outlet end of the tubular vibrating conveyor is connected to the discharge hopper and the screw conveyor.
[0012] In some embodiments, the waste lithium battery copper-aluminum sorting device further includes a discharge hopper and a collection mechanism, the outlet of the screw conveyor is connected to the collection mechanism, and the discharge hopper is connected to the outlet end of the tubular vibrating conveyor.
[0013] In some embodiments, the waste lithium battery copper-aluminum sorting device further includes an air conveying device, which is connected to the tubular vibrating conveyor and the transfer silo.
[0014] In some embodiments, the pneumatic conveying device includes a suction pipe and a temporary storage tank. The temporary storage tank is located above and connected to the transfer silo. One end of the suction pipe is connected to the tubular vibrating conveyor, and the other end is connected to the temporary storage tank.
[0015] In some embodiments, there are two suction tubes, which are located on both sides of the temporary storage tank and are connected to the tubular vibrating conveyor.
[0016] In some embodiments, the transfer hopper is equipped with a material leveling device and a gate.
[0017] The technical solution of this utility model involves installing a first image acquisition device at the outlet of a first specific gravity screen to capture an image of the screen surface; and installing a second image acquisition device at the outlet of a second specific gravity screen to capture an image of the screen surface; a control unit is also provided to acquire the first and second images, allowing operators to directly view the first and second images at the control unit to understand the conditions of the outlets of the first and second specific gravity screens without the need for manual on-site observation. Furthermore, the control unit can determine whether the first sieve output from the first specific gravity screen is qualified based on the color distribution of the first image, and determine whether the second sieve output from the second specific gravity screen is qualified based on the color distribution of the second image. The control unit can also control the excitation parameters of the first and second specific gravity screens and the parameters of the blower, reducing manual judgment and control operations, improving the efficiency of parameter adjustment, reducing labor costs, and minimizing material waste. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0019] Figure 1 A schematic diagram of the structure of an embodiment of the waste lithium battery copper-aluminum sorting device provided by this utility model;
[0020] Figure 2 A side view of an embodiment of the waste lithium battery copper-aluminum sorting device provided by this utility model;
[0021] Figure 3 This is a side flow diagram of an embodiment of the copper-aluminum sorting device for waste lithium batteries provided by this utility model.
[0022] Explanation of icon numbers:
[0023] 100. Waste lithium battery copper-aluminum sorting device; 1. Transfer silo; 2. Box vibrating screen; 30. First specific gravity screen; 31. Second specific gravity screen; 40. First image acquisition device; 41. Second image acquisition device; 51. First diversion device; 52. Second diversion device; 6. Tubular vibrating conveyor; 7. Screw conveyor; 8. Pneumatic conveying device; 81. Suction pipe; 82. Temporary storage tank; 9. Fan.
[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0026] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0027] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0028] Waste lithium-ion batteries contain significant amounts of copper and aluminum. To recycle these components, current processes involve physically crushing and screening the remaining copper and aluminum material, then feeding this material into a grinding mill for fine grinding and powdering. This produces a large amount of copper and aluminum powder, which is then separated by a gravity separator. However, the purity of the copper and aluminum in this powder is low, affecting its recycling value. Even after gravity separation, the traditional method of separating copper and aluminum from waste lithium batteries relies on manual intervention. Adjustments are made based on the observed output of copper and aluminum, which is inefficient, cannot keep up with changes in material composition, and results in significant material waste.
[0029] This utility model discloses a copper-aluminum sorting device 100 for waste lithium batteries. Please refer to [link / reference]. Figure 1 and Figure 2In one embodiment of this utility model, the waste lithium battery copper-aluminum sorting device 100 proposed by this utility model includes a first specific gravity screen 30, a second specific gravity screen 31, a blower 9, and a control unit. The blower 9 is disposed at the first specific gravity screen 30 and the second specific gravity screen 31. A first image acquisition device 40 is installed at the outlet of the first specific gravity screen 30. The first image acquisition device 40 is used to capture images of the screen surface of the first specific gravity screen 30 to obtain a first image. A second image acquisition device 41 is installed at the outlet of the second specific gravity screen 31. The second image acquisition device 41 is used to capture images of the screen surface of the second specific gravity screen 31 to obtain a second image.
[0030] The control unit is used to acquire a first image and a second image, to determine whether the first sieve output in the first specific gravity sieve 30 is qualified based on the color distribution of the first image, and to determine whether the second sieve output in the second specific gravity sieve 31 is qualified based on the color distribution of the second image; the control unit is also used to control the excitation parameters of the first specific gravity sieve 30 and the second specific gravity sieve 31 and to control the parameters of the fan 9.
[0031] In one embodiment, the first image acquisition device 40 acquires images of the screen surface of the first specific gravity sieve 30, analyzes the acquired images, and then controls the excitation parameters of the first specific gravity sieve 30, the second specific gravity sieve 31, and the blower 9 via the control unit. Similarly, the second image acquisition device 41 acquires images of the screen surface of the second specific gravity sieve 31, analyzes the acquired images, and then controls the excitation parameters of the first specific gravity sieve 30, the second specific gravity sieve 31, and the blower 9 via the control unit. Both the first image acquisition device 40 and the second image acquisition device 41 are CCD cameras. The control unit can be a host computer. The host computer can be located next to the first specific gravity sieve 30. The host computer is electrically connected to the first image acquisition device 40, the second image acquisition device 41, the blower 9, the first specific gravity sieve 30, and the second specific gravity sieve 31.
[0032] The technical solution of this utility model involves installing a first image acquisition device 40 at the outlet of the first specific gravity screen 30, which can be used to capture images of the screen surface of the first specific gravity screen 30 to obtain a first image; and installing a second image acquisition device 41 at the outlet of the second specific gravity screen 31, which can be used to capture images of the screen surface of the second specific gravity screen 31 to obtain a second image; and also providing a control unit, which is used to acquire the first and second images, thereby facilitating operators to directly view the first and second images at the control unit to understand the conditions of the outlets of the first specific gravity screen 30 and the second specific gravity screen 31, without the need for manual on-site observation of the outlets of the first specific gravity screen 30 and the second specific gravity screen 31. Furthermore, the control unit can be used to determine whether the first screened material in the first specific gravity screen 30 is qualified based on the color distribution of the first image; and to determine whether the second screened material in the second specific gravity screen 31 is qualified based on the color distribution of the second image; the control unit can also be used to control the excitation parameters of the first specific gravity screen 30 and the second specific gravity screen 31 as well as the parameters of the blower 9, reducing manual judgment and control operations, improving the efficiency of parameter adjustment, reducing labor costs, and reducing material waste.
[0033] Optionally, the control unit can use existing image recognition technology to analyze the distribution of each color in the first image and the second image to obtain the distribution percentage of each color, and then determine whether the first sieve output in the first specific gravity sieve 30 is qualified and whether the second sieve output in the second specific gravity sieve 31 is qualified.
[0034] If one of the screened materials fails to meet the requirements, the control unit can control the excitation parameters of the first specific gravity screen 30 and the second specific gravity screen 31, as well as the parameters of the blower 9.
[0035] Among them, one outlet of the first gravity screen 30 and the other outlet of the second gravity screen 31 are for copper powder and for aluminum powder, respectively. Because copper has a higher density than aluminum, under the force of the blower 9, the aluminum powder is blown a greater distance than the copper powder; thus, the aluminum powder and copper powder can be separated more effectively. Figure 1 As shown, the outlet of the first gravity screen 30 can be aluminum powder, and the outlet of the second gravity screen 31 can be copper powder.
[0036] In one embodiment, the first sieve output of the first specific gravity sieve 30 can be aluminum powder, and the second sieve output of the second specific gravity sieve 31 can be copper powder. The control unit calculates the distribution of each color in the first image of the first specific gravity sieve 30. If, based on the current frame of the first image, ≥75% of the target area is gray and ≤25% is yellow, then the aluminum powder purity is qualified, i.e., the aluminum powder is deemed qualified. If, based on the current frame of the second image, ≥99% of the target area is yellow and ≤1% is gray, then the copper powder purity is qualified, i.e., the aluminum powder is deemed qualified. The copper purity is not less than 98.5%, and the aluminum purity is not less than 96.5%.
[0037] Furthermore, when the control unit determines that the copper powder is qualified and the aluminum powder is unqualified, the excitation parameters of the first specific gravity sieve 30 and the second specific gravity sieve 31 can be maintained, and then the parameters of the blower 9 can be adjusted to perform frequency increase processing, increasing by 1Hz each time. After 5 minutes, the image can be taken again for sampling, thereby allowing more aluminum powder to be blown to the first specific gravity sieve 30 by the blower 9.
[0038] When the control unit determines that the copper powder is unqualified while the aluminum powder is qualified, the parameters of the blower 9 can be maintained, and the excitation parameters of the second specific gravity sieve 31 can be increased to remove the aluminum powder from the second specific gravity sieve 31 through vibration. Alternatively, the parameters of the blower 9 can be adjusted to reduce the frequency by 1Hz each time, and a sample can be taken again after 5 minutes to ensure that more copper powder falls onto the second specific gravity sieve 31; then, the excitation parameters of the second specific gravity sieve 31 can be increased to further remove the aluminum powder from the second specific gravity sieve 31 through vibration, thereby improving the purity of the copper powder. The excitation parameters of both specific gravity sieves are controlled between 28Hz and 32Hz.
[0039] Specifically, in one embodiment, the first image acquisition device 40 and the second image acquisition device 41 take pictures and samples once per minute. The control unit calculates from the current frame of the first image that ≥75% of the target area is gray and ≤25% is yellow, and determines that the aluminum powder is unqualified. The control unit calculates from the current frame of the second image that ≥99% of the target area is yellow and ≤1% is gray, and determines that the copper powder is qualified. After the control unit determines that the copper powder is qualified and the aluminum powder is unqualified, the control unit adjusts the excitation parameters of the two specific gravity screens to between 28Hz and 32Hz, and then adjusts the parameters of the blower 9 to perform frequency increase processing, increasing by 1Hz each time. After 5 minutes, it can take pictures and samples again, thereby allowing more aluminum powder to be blown to the first specific gravity screen 30 by the blower 9.
[0040] The control unit calculates that in the current frame of the first image, ≥98% of the target area is gray and ≤2% is yellow, thus determining that the aluminum powder is qualified; in the current frame of the second image, ≥99% of the target area is yellow and ≤1% is gray, thus determining that the copper powder is qualified. When the control unit determines that both the copper powder and aluminum powder are qualified, it can maintain the excitation parameters of the two gravity screens and the parameters of the blower 9 unchanged, and perform a sampling for verification every 5 minutes.
[0041] In another embodiment, the first image acquisition device 40 and the second image acquisition device 41 take pictures and samples once per minute. The control unit calculates from the current frame of the first image that ≥98% of the target area is gray and ≤2% is yellow, and determines that the aluminum powder is qualified. The control unit calculates from the current frame of the second image that ≥92% of the target area is yellow and ≤8% is gray, and determines that the copper powder is unqualified.
[0042] After the control unit determines that the copper powder is unqualified and the aluminum powder is qualified, it keeps the parameters of the fan 9 unchanged, and then increases the excitation parameters of the second gravity screen 31. After 5 minutes, the first image acquisition device 40 and the second image acquisition device 41 can take pictures and samples again. The control unit calculates from the current frame of the first image that ≥98% of the target area is gray and ≤2% is yellow, thus determining that the aluminum powder is qualified; and from the current frame of the second image, it calculates that ≥99% of the target area is yellow and ≤1% is gray, thus determining that the copper powder is qualified. The control unit can keep the excitation parameters of the two gravity screens and the parameters of the fan 9 unchanged, and perform sampling every 5 minutes for verification.
[0043] The control unit can determine whether the first and second screened products are qualified based on the color distribution of the first and second images, and then control the excitation parameters of the first and second specific gravity screens 30 and 31, as well as the parameters of the blower 9. This parameter adjustment is efficient and eliminates the need for manual sorting, judgment, and control. Furthermore, by controlling the excitation parameters of the two specific gravity screens and the parameters of the blower 9, the control unit can correct the sorting effect, thereby improving the purity of the first and second screened products.
[0044] In order to achieve material grading and screening, in one embodiment, the waste lithium battery copper-aluminum sorting device 100 further includes a box vibrating screen 2, and the first specific gravity screen 30 and the second specific gravity screen 31 are both connected to the box vibrating screen 2.
[0045] Material can be added to the box vibrating screen 2. Under the vibration of the box vibrating screen 2, the material is classified and screened on the screen surface. Under the action of vibration, materials of different particle sizes are separated according to particle size, resulting in oversize and undersize materials. Then, the oversize and undersize materials can enter the first specific gravity screen 30 and the second specific gravity screen 31 for screening, respectively. Afterward, the first specific gravity screen 30 screens out the first screened material, and the second specific gravity screen 31 screens out the second screened material.
[0046] The vibrating screen 2 is equipped with a screen structure for particle size separation. The screen structure can be a 100-mesh screen. An additional 20-mesh screen can be added to the screen structure to simultaneously process materials with particle sizes greater than 0.85mm, 0.15-0.85mm, and less than 0.15mm, thereby improving recovery efficiency.
[0047] In order to reduce the number of times materials are manually fed into the box vibrating screen 2 and reduce labor costs, the waste lithium battery copper-aluminum sorting device 100 also includes a transfer hopper 1. The transfer hopper 1 has a discharge port. The transfer hopper 1 is located above the box vibrating screen 2, and the discharge port is connected to the box vibrating screen 2.
[0048] The transfer hopper 1 temporarily stores materials, which can enter the box vibrating screen 2 from the discharge hopper.
[0049] In one embodiment, a first diversion device 51 is connected below the first specific gravity screen 30, and a second diversion device 52 is connected below the second specific gravity screen 31.
[0050] Furthermore, the waste lithium battery copper-aluminum sorting device 100 also includes a tubular vibrating conveyor 6 and a screw conveyor 7. The tubular vibrating conveyor 6 is located below the first diversion device 51 and the second diversion device 52. The inlet end of the tubular vibrating conveyor 6 is connected to the first diversion device 51 and the second diversion device 52, and the outlet end of the tubular vibrating conveyor 6 is connected to the discharge hopper and the screw conveyor 7.
[0051] Please see Figures 1 to 3 Both the first diversion device 51 and the second diversion device 52 are connected to the tubular vibrating conveyor 6, so that qualified first screened material and qualified second screened material enter the tubular vibrating conveyor 6 from the first diversion device 51 and the second diversion device 52, respectively. The waste lithium battery copper-aluminum sorting device 100 also includes a discharge hopper and a collection mechanism. The outlet of the screw conveyor 7 is connected to the collection mechanism, and the discharge hopper is connected to the outlet end of the tubular vibrating conveyor 6.
[0052] The tubular vibrating conveyor 6 transports the qualified first screened material and the qualified second screened material to the discharge hopper, and the screw conveyor 7 transports the qualified first screened material and the qualified second screened material to the collection mechanism for collection.
[0053] To recover substandard screened material, the waste lithium battery copper-aluminum sorting device 100 also includes an air conveying device 8, which is connected to the tubular vibrating conveyor 6 and the transfer silo 1. The air conveying device 8 is used to pump the substandard screened material back to the transfer silo 1 through a pipeline for subsequent recycling and screening.
[0054] Specifically, the pneumatic conveying device 8 includes a suction pipe 81 and a temporary storage tank 82. The temporary storage tank 82 is located above the transfer silo 1 and is connected to the transfer silo 1. One end of the suction pipe 81 is connected to the tubular vibrating conveyor 6, and the other end is connected to the temporary storage tank 82.
[0055] The temporary storage tank 82 is located above the transfer silo 1 and is connected to the transfer silo 1. The suction pipe 81 draws unqualified screened material into the temporary storage tank 82, and the unqualified screened material can then enter the transfer silo 1 from the temporary storage tank 82.
[0056] To improve the efficiency of sucking up unqualified screened materials, there are two suction pipes 81. The two suction pipes 81 are located on both sides of the temporary storage tank 82, and both suction pipes 81 are connected to the tubular vibrating conveyor 6.
[0057] In one embodiment, the transfer silo 1 is equipped with a material leveling device and a gate. When the material storage level in the transfer silo 1 reaches the activation level of the material leveling device, the gate of the transfer silo 1 opens, and the material enters the vibrating screen 2. When the material level in the silo falls below the minimum material level of the transfer silo 1, the equipment stops to save energy. The feeding speed of the transfer silo 1 can be adjusted by the opening degree of the gate in the transfer silo 1.
[0058] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A copper-aluminum sorting device for waste lithium batteries, characterized in that, The device includes a first specific gravity screen, a second specific gravity screen, a blower, and a control unit. The blower is located at the first specific gravity screen and the second specific gravity screen. A first image acquisition device is installed at the outlet of the first specific gravity screen to capture a first image of the screen surface. A second image acquisition device is installed at the outlet of the second specific gravity screen. The second image acquisition device is used to capture images of the screen surface of the second specific gravity screen to obtain a second image; The control unit is used to acquire a first image and a second image, so as to determine whether the first sieve output in the first specific gravity sieve is qualified based on the color distribution of the first image, and to determine whether the second sieve output in the second specific gravity sieve is qualified based on the color distribution of the second image. The control unit is also used to control the excitation parameters of the first and second specific gravity screens and the parameters of the blower.
2. The waste lithium battery copper-aluminum sorting device as described in claim 1, characterized in that, The waste lithium battery copper-aluminum sorting device also includes a box vibrating screen, and the first specific gravity screen and the second specific gravity screen are both connected to the box vibrating screen.
3. The waste lithium battery copper-aluminum sorting device as described in claim 2, characterized in that, The waste lithium battery copper-aluminum sorting device also includes a transfer hopper, which has a discharge port. The transfer hopper is located above the box vibrating screen, and the discharge port is connected to the box vibrating screen.
4. The waste lithium battery copper-aluminum sorting device as described in claim 3, characterized in that, A first diversion device is connected below the first specific gravity screen, and a second diversion device is connected below the second specific gravity screen.
5. The waste lithium battery copper-aluminum sorting device as described in claim 4, characterized in that, The waste lithium battery copper-aluminum sorting device also includes a tubular vibrating conveyor and a screw conveyor. The tubular vibrating conveyor is located below the first diversion device and the second diversion device. The inlet end of the tubular vibrating conveyor is connected to the first diversion device and the second diversion device, and the outlet end of the tubular vibrating conveyor is connected to the discharge hopper and the screw conveyor.
6. The waste lithium battery copper-aluminum sorting device as described in claim 5, characterized in that, The waste lithium battery copper-aluminum sorting device also includes a discharge hopper and a collection mechanism. The outlet of the screw conveyor is connected to the collection mechanism, and the discharge hopper is connected to the outlet end of the tubular vibrating conveyor.
7. The waste lithium battery copper-aluminum sorting device as described in claim 5 or 6, characterized in that, The waste lithium battery copper-aluminum sorting device also includes an air conveying device, which is connected to the tubular vibrating conveyor and the transfer silo.
8. The waste lithium battery copper-aluminum sorting device as described in claim 7, characterized in that, The pneumatic conveying device includes a suction pipe and a temporary storage tank. The temporary storage tank is located above the transfer silo and is connected to the transfer silo. One end of the suction pipe is connected to the tubular vibrating conveyor, and the other end is connected to the temporary storage tank.
9. The waste lithium battery copper-aluminum sorting device as described in claim 8, characterized in that, There are two suction pipes, which are located on both sides of the temporary storage tank and are connected to the tubular vibrating conveyor.
10. The waste lithium battery copper-aluminum sorting device according to any one of claims 3 to 6, characterized in that, The transfer silo is equipped with a material leveling device and a gate.