Copper-aluminum sorting device for recycling lithium batteries

Abstract

The utility model relates to the field of sorting equipment, and provides a copper-aluminum sorting device for recycling lithium batteries, which comprises a rack, a sorting box is fixedly connected onto the rack, an open hole is arranged on the front side of the sorting box and communicated with an air inlet pipeline, an open hole is arranged on the rear side of the sorting box and communicated with an air outlet pipeline, and a feeding sieve is connected onto the upper portion of the sorting box. A copper-aluminum mixture enters the sorting box from the left side of the feeding screen to be sorted, the front side of the bottom of the sorting box is fixedly connected with a first discharging barrel, copper particles are discharged from the first discharging barrel, the rear side of the bottom of the sorting box is fixedly connected with a second discharging barrel, aluminum particles are discharged from the second discharging barrel, and the top of the sorting box is fixedly connected with the bottom of the top cover. The feeding screen is provided with the screen holes with different hole diameters in different sections, so that the particle sizes of particles needing to be sorted are ensured to be consistent under the same wind power, larger aluminum particles and smaller copper particles are prevented from falling into the same discharging barrel, and the sorting purity of the copper and aluminum particles is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of sorting equipment, especially to a copper-aluminum sorting device for lithium battery recycling. BACKGROUND

[0002] With the transformation of global energy structure and the enhancement of environmental awareness, new energy vehicles, as an important way to reduce greenhouse gas emissions and achieve sustainable development, have developed rapidly in recent years. As one of the core components of electric vehicles, lithium batteries are widely used in the power system of new energy vehicles due to their high energy density, long cycle life and fast charging capacity. However, with the large-scale use of lithium batteries, the problem of recycling after their life ends has gradually emerged. Lithium batteries contain a variety of valuable metals, such as copper and aluminum. The recycling of these metals not only reduces environmental pollution, but also reduces the demand for new resources, which has important economic and environmental significance.

[0003] Wind density sorting technology has shown its unique advantages in the field of lithium battery recycling. Copper and aluminum, as common conductive materials in lithium batteries, their effective separation is crucial to improve the efficiency of recycling and reduce costs.

[0004] In the wind density sorting process, the metal mixture after disassembling the lithium battery is first pretreated, including crushing and screening, to form particles of appropriate size for sorting. Then, these particles are sent to the wind density sorting machine. The machine is designed with a specific wind system, which can accurately control the movement trajectory of the particles by adjusting the size and direction of the wind. Because of the difference in the specific gravity of copper and aluminum, under the same wind force, copper particles and aluminum particles will be at different landing points. By setting appropriate wind parameters and sorting areas, effective separation of copper and aluminum particles can be achieved.

[0005] In existing copper-aluminum separation technology, it is impossible to ensure that the particle size of copper particles and aluminum particles after screening is consistent. Under the same wind force, smaller copper particles and larger aluminum particles may be subjected to the same wind force, resulting in ineffective separation of the two, which in turn leads to insufficient sorting purity. UTILITY MODEL CONTENTS

[0006] The utility model discloses a copper aluminium sorting device for lithium battery recycling, which comprises a rack, a sorting box fixedly connected to the rack, an opening provided at the front side of the sorting box, which is communicated with an air inlet pipeline, the air inlet pipeline is connected with an external air source to provide air power for copper aluminium sorting, an opening is also provided at the rear side of the sorting box, which is communicated with an air outlet pipeline, a feed sieve is connected to the upper portion of the sorting box, copper aluminium mixture enters the sorting box from the left side of the feed sieve for sorting, a first discharge cylinder is fixedly connected to the front side of the bottom of the sorting box, copper particles are discharged from the first discharge cylinder, a second discharge cylinder is fixedly connected to the rear side of the bottom of the sorting box, aluminium particles are discharged from the second discharge cylinder, and the top of the sorting box is fixedly connected with the bottom of a top cover.

[0007] Further, the sorting box is composed of a first sorting chamber, a second sorting chamber and a third sorting chamber, the first sorting chamber, the second sorting chamber and the third sorting chamber are arranged side by side from left to right, and the front side of each of the first sorting chamber, the second sorting chamber and the third sorting chamber is communicated with the air inlet pipeline, and the rear side of each of the first sorting chamber, the second sorting chamber and the third sorting chamber is communicated with the air outlet pipeline.

[0008] Further, the first sorting chamber, the second sorting chamber and the third sorting chamber are provided with a first sieve hole above the first sorting chamber, and a second sieve hole above the second sorting chamber, and the second sieve hole has a larger diameter than the first sieve hole.

[0009] Further, the feed sieve is arranged in an inclined manner with the left side being higher than the right side, and a vibration motor is fixedly connected to the bottom surface of the left side of the feed sieve.

[0010] Further, the first sorting chamber, the second sorting chamber and the third sorting chamber are each fixedly connected with a partition plate at the middle portion.

[0011] Further, the first sorting chamber, the second sorting chamber and the third sorting chamber are each fixedly connected with a filter screen at the rear side communicated with the air outlet pipeline.

[0012] Further, the utility model also comprises a cleaning assembly, which comprises a driving motor, a lead screw, a sliding block, an electric push rod, a fixing frame and a cleaning roller, the right side of the top cover is fixedly connected with the driving motor, the left and right ends of the lead screw are rotatably connected with the left and right sides of the top cover respectively, the right end of the lead screw is also fixedly connected with the output shaft of the driving motor, the sliding block is in threaded engagement with the lead screw, the bottom of the sliding block is fixedly connected with the electric push rod, the movable end of the electric push rod is fixedly connected with the fixing frame, and the cleaning roller is rotatably connected with the fixing frame.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. By setting different aperture diameters for the feed screen in different sections, each section can screen copper-aluminum particles of different particle sizes, and each section of the feed screen corresponds to a sorting chamber, ensuring that the particle size of the particles to be sorted is consistent under the same wind force, avoiding larger aluminum particles and smaller copper particles falling into the same discharge cylinder, thereby improving the purity of the sorted copper-aluminum particles. At the same time, since the device can sort copper-aluminum particles of different particle sizes at one time, the operation of multiple screening and multiple sorting is avoided, and the efficiency of copper-aluminum sorting is improved.

[0015] 2. By setting the cleaning assembly, the feed screen can be cleaned regularly to avoid residual particles after sorting from blocking the screen holes and affecting subsequent sorting operations. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0017] Figure 1 It is a front side structure schematic diagram of a copper-aluminum sorting device for lithium battery recycling.

[0018] Figure 2 It is a right side structure schematic diagram of a copper-aluminum sorting device for lithium battery recycling.

[0019] Figure 3 It is a partial structure schematic diagram of a copper-aluminum sorting device for lithium battery recycling Figure 1 .

[0020] Figure 4 It is a partial structure schematic diagram of a copper-aluminum sorting device for lithium battery recycling Figure 2 .

[0021] Figure 5 It is a bottom structure schematic diagram of a copper-aluminum sorting device for lithium battery recycling.

[0022] The marks in the drawings are: 1, rack; 2, feed screen; 21, vibration motor; 22, first screen hole; 23, second screen hole; 3, sorting box; 31, first sorting chamber; 32, second sorting chamber; 33, third sorting chamber; 34, partition; 4, air inlet pipe; 5, air outlet pipe; 51, filter screen; 6, top cover; 7, first discharge cylinder; 8, second discharge cylinder; 91, drive motor; 92, lead screw; 93, sliding block; 94, electric push rod; 95, fixed frame; 96, cleaning roller. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the technical solutions in the specific implementation methods of the present invention are clearly and completely described below to further illustrate the present invention. Obviously, the specific implementation methods described are only part of the implementation methods of the present invention, rather than all styles.

[0024] like Figures 1-5 As shown, a copper-aluminum sorting device for lithium battery recycling includes a frame 1, a sorting box 3 is fixedly connected to the frame 1, an opening is provided on the front side of the sorting box 3, which is connected to the air inlet duct 4, and an opening is also provided on the rear side of the sorting box 3, which is connected to the air outlet duct 5. A feed screen 2 is connected to the upper part of the sorting box 3, and the copper-aluminum mixture enters the sorting box 3 from the left side of the feed screen 2 for sorting. A first discharging barrel 7 is fixedly connected to the front side of the bottom of the sorting box 3, and copper particles are discharged from the first discharging barrel 7. A second discharging barrel 8 is fixedly connected to the rear side of the bottom of the sorting box 3, and aluminum particles are discharged from the second discharging barrel 8. The top of the sorting box 3 is fixedly connected to the bottom of the top cover 6.

[0025] The sorting box 3 consists of a first sorting chamber 31, a second sorting chamber 32, and a third sorting chamber 33. The first, second, and third sorting chambers 31, 32, and 33 are arranged side by side from left to right. The front sides of the first, second, and third sorting chambers 31, 32, and 33 are connected to an air inlet duct 4, which is connected to an external air source to provide wind for copper and aluminum sorting. The rear sides of the first, second, and third sorting chambers 31, 32, and 33 are connected to an air outlet duct 5, so that the air inlet duct 4 and the air outlet duct 5 form a smooth air duct. The middle of the first, second, and third sorting chambers 31, 32, and 33 are fixedly connected to a partition 34. Copper particles falling in front of the partition 34 of the first, second, and third sorting chambers 31, 32, and 33 are uniformly discharged from the first discharge barrel 7, and aluminum particles falling in the back of the partition 34 of the first, second, and third sorting chambers 31, 32, and 33 are uniformly discharged from the second discharge barrel 8. Since a large amount of dust is generated during the copper and aluminum sorting process, in order to prevent the dust from affecting the working environment and endangering the health of workers, a filter 51 is fixedly connected to the connection between the rear side of the first sorting chamber 31, the second sorting chamber 32 and the third sorting chamber 33 and the air outlet duct 5 to filter the dust.

[0026] The feed screen 2 is tilted, with the left side higher and the right side lower. A vibration motor 21 is fixedly connected to the left bottom surface of the feed screen 2. The feed screen 2 has a first sieve hole 22 in a section above the first sorting chamber 31, and a second sieve hole 23 in a section above the second sorting chamber 32. The second sieve hole 23 has a larger aperture than the first sieve hole 22, so that the particle size of the mixed copper and aluminum particles falling into the first sorting chamber 31, the second sorting chamber 32, and the third sorting chamber 33 increases successively. As a result, the wind force entering the first sorting chamber 31, the second sorting chamber 32, and the third sorting chamber 33 also increases successively.

[0027] The device further comprises a cleaning assembly, the cleaning assembly comprising a driving motor 91, a lead screw 92, a sliding block 93, an electric push rod 94, a fixing frame 95 and a cleaning roller 96; the driving motor 91 is fixedly connected to the right side of the top cover 6, the lead screw 92 is rotatably connected to the left and right sides of the top cover 6, the right end of the lead screw 92 is fixedly connected to the output shaft of the driving motor 91, the sliding block 93 is in threaded engagement with the lead screw 92, the electric push rod 94 is fixedly connected to the bottom of the sliding block 93, the fixing frame 95 is fixedly connected to the movable end of the electric push rod 94, and the cleaning roller 96 is rotatably connected to the fixing frame 95.

[0028] When the device is used, the copper-aluminum mixed particles are conveyed to the left side of the feeding sieve 2, and the vibration motor 21 is started, under the action of the vibration motor 21, the copper-aluminum mixed particles are continuously conveyed to the right, the smaller mixed particles fall into the first sorting chamber 31 through the first sieve hole 22, the slightly larger mixed particles fall into the second sorting chamber 32 through the second sieve hole 23, and the largest mixed particles roll into the third sorting chamber 33, under the action of the wind from the air inlet pipeline 4, the aluminum particles are blown to the rear side of the sorting box 3 and discharged from the second discharge cylinder 8, and the copper particles are discharged from the first discharge cylinder 7 from the front side of the sorting box 3.

[0029] After sorting, the feeding sieve 2 can be cleaned, the driving motor 91 is started to drive the sliding block 93 to be located at the left side of the feeding sieve 2, the electric push rod 94 is controlled to lower the fixing frame 95 and the cleaning roller 96 until the cleaning roller 96 is in contact with the feeding sieve 2, the driving motor 91 is controlled to drive the sliding block 93 to move to the right, and the electric push rod 94 is controlled to continuously lower the fixing frame 95 and the cleaning roller 96, the cleaning roller 96 is kept in contact with the feeding sieve 2, and the feeding sieve 2 can be cleaned by repeating the above actions.

[0030] The above describes the main technical features, basic principles and related advantages of the present application, for those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary specific embodiments, and can be realized in other specific forms without departing from the concept or basic characteristics of the present application. Therefore, from any point of view, the above specific embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

[0031] In addition, it should be understood that although the present application is described in the specification according to each embodiment, not every embodiment contains only one independent technical scheme, the description manner of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical scheme in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A copper and aluminum separation device for lithium battery recycling, characterized in that: The invention comprises a frame (1), a sorting box (3) is fixedly connected to the frame (1), an opening is provided on the front side of the sorting box (3), which is connected to an air inlet duct (4), and the air inlet duct (4) is connected to an external air source to provide wind force for copper and aluminum sorting, an opening is also provided on the rear side of the sorting box (3), which is connected to an air outlet duct (5), a feed screen (2) is connected to the top of the sorting box (3), and a copper and aluminum mixture enters the sorting box (3) from the left side of the feed screen (2) for sorting, a first discharge barrel (7) is fixedly connected to the front side of the bottom of the sorting box (3), and copper particles are discharged from the first discharge barrel (7), a second discharge barrel (8) is fixedly connected to the rear side of the bottom of the sorting box (3), and aluminum particles are discharged from the second discharge barrel (8), and the top of the sorting box (3) is fixedly connected to the bottom of the top cover (6).

2. A copper and aluminum separation device for lithium battery recycling according to claim 1, characterized in that: The sorting box (3) is composed of a first sorting chamber (31), a second sorting chamber (32) and a third sorting chamber (33). The first sorting chamber (31), the second sorting chamber (32) and the third sorting chamber (33) are arranged side by side from left to right. The front sides of the first sorting chamber (31), the second sorting chamber (32) and the third sorting chamber (33) are all connected to an air inlet duct (4), and the rear sides are all connected to an air outlet duct (5).

3. A copper and aluminum separation device for lithium battery recycling according to claim 2, characterized in that: The feed screen (2) is located above the first sorting chamber (31) and is provided with a first sieve hole (22). The feed screen (2) is located above the second sorting chamber (32) and is provided with a second sieve hole (23). The aperture of the second sieve hole (23) is larger than that of the first sieve hole (22).

4. The copper-aluminum separation device for lithium battery recycling according to claim 1, characterized in that: The feed screen (2) is arranged to be tilted with the left side higher and the right side lower, and a vibration motor (21) is fixedly connected to the bottom surface of the left side of the feed screen (2).

5. The copper-aluminum separation device for lithium battery recycling according to claim 2, characterized in that: The middle parts of the first sorting chamber (31), the second sorting chamber (32) and the third sorting chamber (33) are all fixedly connected with partitions (34).

6. The copper-aluminum separation device for lithium battery recycling according to claim 2, characterized in that: The first sorting chamber (31), the second sorting chamber (32) and the third sorting chamber (33) are all fixedly connected to the filter screen (51) at the points where the rear sides are connected to the air outlet duct (5).

7. The copper and aluminum separation device for lithium battery recycling according to claim 1, characterized in that: The cleaning assembly further comprises a driving motor (91), a screw rod (92), a slider (93), an electric push rod (94), a fixing frame (95) and a cleaning roller (96); the right side of the top cover (6) is fixedly connected to the driving motor (91); the left and right ends of the screw rod (92) are respectively rotatably connected to the left and right sides of the top cover (6); the right end of the screw rod (92) is also fixedly connected to the output shaft of the driving motor (91); the slider (93) is threadedly engaged with the screw rod (92); the bottom of the slider (93) is fixedly connected to the electric push rod (94); the movable end of the electric push rod (94) is fixedly connected to the fixing frame (95); and the cleaning roller (96) is rotatably connected to the fixing frame (95).

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