Metal multi-stage sorting device for lithium battery recycling

Abstract

The utility model discloses a kind of metal multistage sorting devices for lithium battery recycling, it is related to lithium battery recycling equipment field.The device includes the processing cylinder of inclined arrangement, and the peeling assembly and screening assembly are coaxially arranged in processing cylinder, and feeding filter plate with through-hole and driving motor are equipped at inlet, and driving motor transmission connects two components.Peeled off roll with rubber particles is used to peel off outerwear in peeling assembly, and screening assembly is separated by multistage baffle and discharge port, and external support assembly guarantees stable operation, and dust isolation net and powder collecting box with negative pressure impeller are arranged at air hole.The device realizes integrated processing, improves efficiency, reduces blockage and core damage, improves separation purity, effectively collects dust, and is suitable for efficient environmental protection recovery of waste lithium battery.

Description

Technical Field

[0001] This utility model relates to the technical field of lithium battery recycling equipment, specifically a multi-stage metal sorting device for lithium battery recycling. Background Technology

[0002] In the field of lithium battery recycling, peeling off the outer casing and separating the core from used lithium batteries are crucial pretreatment steps. However, existing processing equipment has many shortcomings:

[0003] Firstly, most devices separate the outer coating removal and core screening into independent processes, requiring multiple devices to work together. This not only makes the process cumbersome but also results in low processing efficiency, making it difficult to meet the needs of large-scale recycling.

[0004] Secondly, the lack of an effective pre-treatment structure for feed means that impurities mixed in with waste lithium batteries can easily cause blockages inside the equipment, affecting continuous operation.

[0005] Third, the outer coating peeling components mostly adopt a rigid structure, which can easily damage the lithium battery core during the peeling process. At the same time, the peeling effect is not good, and there is a problem of outer coating residue.

[0006] Fourth, the separation process relies heavily on a single screening structure, making it difficult to achieve precise separation of outer coating debris from the core, resulting in low separation purity.

[0007] Fifth, the overall stability of the device is insufficient, and materials are prone to movement difficulties or accumulation during the processing.

[0008] Sixth, the dust generated during the process lacks effective collection methods, resulting in a large amount of dust spreading into the environment, polluting the working environment and threatening the health of operators. Furthermore, existing equipment generally suffers from loose structure and low automation, hindering the efficient and environmentally friendly development of lithium battery recycling and processing.

[0009] In response, we propose a multi-stage metal sorting device for lithium battery recycling. Utility Model Content

[0010] The purpose of this invention is to provide a multi-stage metal sorting device for lithium battery recycling, so as to solve the problems mentioned in the background art.

[0011] To achieve the above objectives, this utility model provides the following technical solution: It includes a processing cylinder, which is inclined and has a feed inlet and a vent at both ends. The processing cylinder contains a screening component and a peeling component for removing the outer coating of lithium batteries. The screening component and the peeling component are coaxially arranged side-by-side within the processing cylinder. A feed filter plate is fixedly mounted on the feed inlet of the processing cylinder. The feed filter plate has multiple perforated through holes. A drive motor is fixedly mounted on the feed filter plate, and the drive motor is connected to the screening component and the peeling component.

[0012] Preferably, the peeling assembly includes a transmission spindle fixedly connected to the output end of the drive motor. One end of the transmission spindle, away from the output end of the drive motor, extends into the interior of the processing cylinder. A partition assembly is sleeved on the outer wall of the transmission spindle in the direction away from the drive motor. The partition assembly divides the interior space of the processing cylinder into a peeling zone and a screening zone distributed along the axial direction. The peeling zone is located near the feed inlet.

[0013] Preferably, the separating assembly includes a primary partition and a secondary partition sequentially distributed along the axial direction of the drive shaft, with a transition zone formed between the primary and secondary partitions. The stripping zone is located between the feed filter plate and the primary partition, and the screening zone is located between the secondary partition and the vent. The portion of the drive shaft located within the stripping zone is fitted with a stripping frame, and a plurality of stripping rollers are rotatably mounted on the outer wall of the stripping frame. Friction elements are provided on the outer circumferential surface of the stripping rollers.

[0014] Preferably, the friction element is rubber particles, and a plurality of the rubber particles are evenly distributed on the outer peripheral surface of the stripping roller; the first-stage partition plate has a through hole one connecting the stripping zone and the transition zone, and the second-stage partition plate has a through hole two connecting the transition zone and the screening zone, wherein the diameter of the through hole one is larger than the diameter of the through hole two.

[0015] Preferably, the screening assembly includes a stirring element located in the transition zone of the transmission main shaft, and the outer wall of the processing cylinder is provided with an outer coating debris discharge outlet communicating with the transition zone and a core discharge outlet communicating with the screening zone, wherein the outer coating debris discharge outlet is located on the side of the core discharge outlet near the feed inlet.

[0016] Preferably, the processing cylinder is provided with a support assembly on its exterior. The support assembly includes a support base and two fixing brackets disposed on the support base. The two fixing brackets are respectively sleeved on both ends of the processing cylinder. A dust isolation component is provided at the vent hole. A dust collecting component is provided at the end of the processing cylinder away from the feed inlet. The dust collecting component communicates with the interior of the processing cylinder through the vent hole. A negative pressure generating component is provided on the portion of the drive shaft extending into the dust collecting component.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This invention integrates lithium battery outer sheath peeling and core screening through an inclined processing cylinder coupled with coaxially distributed peeling and screening components. A drive motor synchronously drives each component, improving processing efficiency. A feed filter plate pre-filters impurities, preventing clogging. The peeling zone utilizes a peeling roller with rubber granules to enhance friction, efficiently peeling the outer sheath while minimizing damage to the core. Separating components create a peeling zone, transition zone, and screening zone for step-by-step processing. Combined with through-holes of different diameters and a stirring element, it precisely separates outer sheath fragments from the core, improving separation purity. A support component ensures stable tilting of the processing cylinder, guaranteeing orderly material movement. Dust isolation and collection components at the vents, along with a negative pressure generator, effectively collect dust, reducing environmental pollution. The overall structure is compact and highly automated, suitable for the high-efficiency and environmentally friendly requirements of lithium battery recycling. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This utility model Figure 1 A structural diagram from another perspective;

[0021] Figure 3 This utility model Figure 1 A schematic diagram of the cross-sectional structure;

[0022] Figure 4 This utility model Figure 3 A magnified view of the structure at point A in the middle;

[0023] In the diagram: 100, support base; 101, feed end fixing frame; 102, ventilated end fixing frame; 103, processing cylinder; 104, core discharge port; 105, outer coating debris discharge port; 200, dust collection box; 201, negative pressure impeller; 300, drive motor; 301, feed filter plate; 302, transmission main shaft; 303, peeling frame; 304, peeling roller; 305, primary baffle; 306, secondary baffle; 307, stirring rod; 308, dust isolation net. Detailed Implementation

[0024] 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 protection scope of the present utility model.

[0025] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Example 1

[0027] Please see Figure 1-3 An embodiment of this utility model includes a processing cylinder 103, which is inclined. The two ends of the processing cylinder 103 are respectively provided with a feed inlet and a vent hole. The processing cylinder 103 is provided with a screening component and a peeling component for peeling off the outer coating of lithium batteries. The screening component and the peeling component are coaxially arranged in parallel inside the processing cylinder 103.

[0028] Furthermore, a feed filter plate 301 is fixedly provided on the feed inlet of the processing cylinder 103. The feed filter plate 301 has multiple hollow through holes. A drive motor 300 is fixedly provided on the feed filter plate 301. The drive motor 300 is connected to the screening component and the peeling component.

[0029] The inclined processing cylinder 103 forms a material movement path with the feed inlet as the high end and the vent as the low end. After the lithium battery to be processed enters from the feed inlet, it first passes through the feed filter plate 301 with multiple hollow through holes for preliminary dispersion and impurity filtration. The drive motor 300 fixed on the feed filter plate 301 starts synchronously and drives the screening component and peeling component coaxially arranged in parallel inside the processing cylinder 103. The material first passes through the peeling component to remove the outer coating, and then moves to the screening component under the action of inclined gravity to separate the outer coating debris from the core. During the process, the vent promptly discharges dust and volatile gases. Finally, the separated material is discharged from the end near the vent, completing the co-processing.

[0030] Specifically, the peeling assembly includes a transmission spindle 302 fixedly connected to the output end of the drive motor 300. One end of the transmission spindle 302, away from the output end of the drive motor 300, extends into the interior of the processing cylinder 103. A primary partition 305 and a secondary partition 306 are sequentially fitted on the outer wall of the transmission spindle 302 in the direction away from the drive motor 300. The primary partition 305 and the secondary partition 306 divide the interior space of the processing cylinder 103 into a peeling zone, a transition zone, and a screening zone. The peeling zone is closest to the feed inlet, and the screening zone is closest to the vent. A peeling frame 303 is fixedly fitted on the transmission spindle 302. The peeling frame 303 is located in the peeling zone. Several peeling rollers 304 are evenly rotated along the axis on the outer wall of the peeling frame 303. Several rubber particles with strong static friction are evenly distributed on the peeling rollers 304.

[0031] Furthermore, the screening component includes a through hole one on the primary partition 305 and a through hole two on the secondary partition 306. The diameter of the through hole one is larger than that of the through hole two. Several stirring rods 307 are also fixed on the outer wall of the transmission main shaft 302. The stirring rods 307 are evenly distributed in a circle along the axis of the transmission main shaft 302. All stirring rods 307 are located in the transition zone. The outer wall of the processing cylinder 103 is provided with an outer coating debris discharge outlet 105 and a core discharge outlet 104 in sequence along the axial direction. The outer coating debris discharge outlet 105 is connected to the transition zone, and the core discharge outlet 104 is connected to the screening zone.

[0032] The lithium battery to be processed enters the stripping zone of the processing cylinder 103 after preliminary treatment by the feed filter plate 301. The drive motor 300 drives the transmission shaft 302 to rotate, which drives the stripping frame 303 in the stripping zone to rotate synchronously. The stripping roller 304 on the outer wall of the stripping frame 303 rotates with it. The rubber particles with strong static friction force on the surface fully contact and rub against the lithium battery to achieve the stripping of the outer coating. The stripped material moves to the transition zone under the tilting action of the processing cylinder 103. It enters the transition zone through the through hole one on the first-stage partition 305. When the transmission shaft 302 rotates, it drives the stirring rod 307 in the transition zone to rotate, stirring and pushing the material. Smaller outer coating debris is discharged through the outer coating debris discharge port 105 on the outer wall of the processing cylinder 103. The remaining material continues to move and enters the screening zone through the smaller through hole two on the second-stage partition 306. Finally, it is discharged through the core discharge port 104, which is connected to the screening zone on the outer wall of the processing cylinder 103. During the process, the ventilation hole continuously discharges the dust and volatile gases in the screening zone.

[0033] Furthermore, the processing cylinder 103 is provided with a support assembly on its exterior. The support assembly includes a support base 100. The support base 100 is provided with a feed end fixing bracket 101 and a venting end fixing bracket 102 arranged side by side. The feed end fixing bracket 101 and the venting end fixing bracket 102 are respectively used to fix the feed inlet and the venting hole of the processing cylinder 103. The feed end fixing bracket 101 and the venting end fixing bracket 102 are respectively provided with a first mounting hole and a second mounting hole. The feed end fixing bracket 101 and the venting end fixing bracket 102 are respectively sleeved on the outer walls of both ends of the processing cylinder 103 through the first mounting hole and the second mounting hole.

[0034] A dust isolation net 308 is fixedly connected to the ventilation hole of the processing cylinder 103. The dust isolation net 308 is used to isolate the fine dust in the processing cylinder 103 from the broken lithium battery fragments. A dust collection box 200 is fixedly provided at the end of the processing cylinder 103 away from the drive motor 300. The dust collection box 200 is provided with a dust collection space. The dust collection space is connected to the space in the processing cylinder 103. A negative pressure impeller 201 is fixedly provided on the outer periphery of the end of the drive shaft 302 away from the drive motor 300 and located in the dust collection space. When the negative pressure impeller 201 rotates with the drive shaft 302, a negative pressure environment is generated in the dust collection box 200.

[0035] In the support assembly, the feed end fixing bracket 101 and the venting end fixing bracket 102 on the support base 100 are respectively fitted onto the outer wall of the feed inlet and venting end of the processing cylinder 103 through mounting holes one and two, forming a stable support for the processing cylinder 103 and ensuring its tilted state to maintain the normal movement path of the material. After the material completes the screening process in the processing cylinder 103, the dust isolation net 308 at the venting hole isolates the fine dust from the lithium battery fragments. The fragments are discharged through the core discharge outlet 104, while the dust enters the dust collection space in the dust collection box 200 connected to the processing cylinder 103. At the same time, when the drive shaft 302 rotates, it drives the negative pressure impeller 201 located in the dust collection space to rotate synchronously, so that a negative pressure environment is formed in the dust collection box 200, accelerating the dust to gather in the dust collection space, realizing efficient dust collection and avoiding diffusion.

[0036] In the embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the displayed or discussed mutual couplings, direct couplings, or communication connections may be through some communication interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.

[0037] Finally, it should be noted that the above-described embodiments are merely specific implementations of this utility model, used to illustrate the technical solution of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this utility model. These modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A metal multi-stage sorting device for lithium battery recycling, characterized in that, The device includes a processing cylinder (103) which is inclined and has a feed inlet and a vent at both ends. The processing cylinder (103) is equipped with a screening component and a peeling component for peeling off the outer coating of lithium batteries. The screening component and the peeling component are coaxially arranged in parallel inside the processing cylinder (103). A feed filter plate (301) is fixedly provided on the feed inlet of the processing cylinder (103). The feed filter plate (301) has multiple hollow through holes. A drive motor (300) is fixedly provided on the feed filter plate (301). The drive motor (300) is connected to the screening component and the peeling component. The peeling assembly includes a transmission spindle (302) fixedly connected to the output end of the drive motor (300). One end of the transmission spindle (302) away from the output end of the drive motor (300) extends into the interior of the processing cylinder (103). A partition assembly is sleeved on the outer wall of the transmission spindle (302) in the direction away from the drive motor (300). The partition assembly divides the interior space of the processing cylinder (103) into a peeling zone and a screening zone distributed along the axial direction. The peeling zone is located near the feed inlet.

2. The multi-stage metal sorting device for lithium battery recycling according to claim 1, characterized in that, The separating assembly includes a primary partition (305) and a secondary partition (306) sequentially distributed along the axial direction of the transmission main shaft (302). A transition zone is formed between the primary partition (305) and the secondary partition (306). The stripping zone is located between the feed filter plate (301) and the primary partition (305). The screening zone is located between the secondary partition (306) and the vent. The portion of the transmission main shaft (302) located within the stripping zone is fitted with a stripping frame (303). A plurality of stripping rollers (304) are rotatably mounted on the outer wall of the stripping frame (303). Friction elements are provided on the outer circumferential surface of the stripping rollers (304).

3. The metal multi-stage sorting device for lithium battery recycling according to claim 2, characterized in that, The friction element is rubber particles, and a number of the rubber particles are evenly distributed on the outer circumferential surface of the stripping roller (304); the first-stage partition (305) has a through hole one connecting the stripping zone and the transition zone, and the second-stage partition (306) has a through hole two connecting the transition zone and the screening zone, and the diameter of the through hole one is larger than the diameter of the through hole two.

4. A multi-stage metal sorting device for lithium battery recycling according to claim 3, characterized in that, The screening assembly includes a stirring element located in the transition zone of the transmission main shaft (302). The outer wall of the processing cylinder (103) is provided with an outer coating debris discharge port (105) communicating with the transition zone and a core discharge port (104) communicating with the screening zone. The outer coating debris discharge port (105) is located on the side of the core discharge port (104) near the feed inlet.

5. The metal multi-stage sorting device for lithium battery recycling according to claim 4, characterized in that, The processing cylinder (103) is provided with a support assembly on its exterior. The support assembly includes a support base (100) and two fixing brackets on the support base (100). The two fixing brackets are respectively sleeved on both ends of the processing cylinder (103). A dust isolation component is provided at the vent hole. A dust collecting component is provided at the end of the processing cylinder (103) away from the feed inlet. The dust collecting component is connected to the interior of the processing cylinder (103) through the vent hole. A negative pressure generating component is provided on the part of the transmission main shaft (302) extending into the dust collecting component.

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