Device for sorting diaphragms in crushed materials of lithium batteries

Abstract

The utility model belongs to the field of lithium battery crushing, and particularly relates to a device for sorting diaphragms in materials after lithium battery crushing, which comprises a sorting box, the inside of the sorting box is divided into an upper sorting area and a lower sorting area by a screen, and two sides of the upper sorting area and two sides of the lower sorting area are respectively provided with a diaphragm outlet and a heavy material outlet; the upper sorting area and the lower sorting area are each internally provided with a wind power sorting component used for blowing materials in the diaphragm outlet direction. The sorting box is connected to the base through a plurality of evenly-distributed elastic supporting pieces, and the screen and the lower separating plate at the bottom of the lower sorting area are both connected with vibration components. The interior of the sorting box is divided into the upper sorting area and the lower sorting area through the screen, diaphragms with different granularities can be sorted, the diaphragms and other various materials can be effectively separated, the separation effect is good, and the recovery rate is high.

Description

Technical Field

[0001] This utility model belongs to the field of lithium battery crushing, specifically, it relates to a device for sorting the diaphragm in the material after lithium battery crushing. Background Technology

[0002] In the lithium battery recycling process, the sorting and recycling of separators faces numerous challenges: separators are typically composed of multi-layered composite materials such as polyethylene (PE) and polypropylene (PP), resulting in high material complexity and making effective separation difficult; simultaneously, separators easily adsorb electrolytes and metal ions during use, causing pollution and increasing recycling difficulty; furthermore, separators may suffer physical damage after battery retirement, further affecting recycling efficiency. Existing separator recycling technologies, such as chemical treatment, thermal treatment, and solvent extraction, all have significant drawbacks: chemical treatment uses strong acids or alkalis, which may corrode equipment and generate hazardous waste; thermal treatment may lead to separator material degradation, reducing recycling quality; and solvent extraction poses safety and environmental risks such as solvent toxicity or flammability. Mechanical separation, on the other hand, is a method based on the physical properties of the separator, offering good separation efficiency, high processing capacity, and environmental friendliness. However, currently, there is a lack of efficient separation equipment. Therefore, developing an efficient, environmentally friendly, and economical separator sorting device is of great significance for solving the separator sorting problem in retired lithium battery recycling. Utility Model Content

[0003] The purpose of this invention is to solve the problems in the prior art and to propose a device for sorting the diaphragm in the material after lithium battery crushing.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A device for sorting diaphragms in materials after lithium battery crushing includes: a sorting box, the interior of which is divided into an upper sorting zone and a lower sorting zone by a screen, and diaphragm outlet and heavy material outlet are provided on both sides of the upper and lower sorting zones; both the upper and lower sorting zones are provided with wind-powered sorting components for blowing materials toward the diaphragm outlet; the sorting box is connected to a base by multiple evenly distributed elastic support members, and vibration components are connected to the screen and the lower separation plate at the bottom of the lower sorting zone.

[0006] Preferably, the upper sorting zone is connected to the feed inlet located at the top of the sorting box, and the feed inlet is equipped with a flow meter for monitoring the feed amount.

[0007] Preferably, the air-powered sorting component includes: a sorting fan installed in the cavity of the base equipment, the air outlet of the sorting fan being connected to an air outlet pipe, and an airflow disperser being connected to one end of the air outlet pipe inserted into the upper sorting zone or the lower sorting zone, with the airflow disperser respectively located on the side of the upper sorting zone or the lower sorting zone near the outlet of the heavy material.

[0008] Preferably, the feed inlet is located between the airflow diffuser and the diaphragm outlet, and the distance between the feed inlet and the airflow diffuser is smaller than the distance between the feed inlet and the diaphragm outlet.

[0009] Preferably, the elastic support includes: a metal spring, wherein the bottom or side of the sorting box is connected to the base by multiple metal springs that are evenly arranged around its outer side.

[0010] Preferably, it also includes: a cyclone dust collector, the dust inlet of which is inserted into the upper sorting area of ​​the sorting box.

[0011] Preferably, the vibrating component includes two electromagnetic vibrators disposed on the screen and the lower separation plate.

[0012] Preferably, both the upper and lower sorting zones are equipped with material distributors for dispersing materials, with the material distributor in the upper sorting zone located directly below the feed inlet.

[0013] Preferably, the material distributor includes: a rotating shaft rotatably connected to a screen or a lower separation plate; a swaying disc fixed on the rotating shaft has multiple dispersing rods fixedly connected to it; the bottom surfaces of the dispersing rods are slidably fitted onto the screen or the lower separation plate; the swing arm of the swaying disc is rotatably connected to one end of a drive rod; the other end of the drive rod is rotatably connected to an eccentric position on a rotating wheel; the rotating wheel is fixed to the output shaft of the distribution motor; and the distribution motor is fixed to the side wall of the sorting box via a motor mount.

[0014] Preferably, multiple curved grids are evenly arranged side by side on the screen.

[0015] This utility model has the following beneficial effects:

[0016] This invention relates to a device for sorting diaphragms from crushed lithium battery materials. It can effectively separate diaphragms from various other materials, achieving good separation results and a high recovery rate of the separated diaphragms. The sorting box is divided into an upper sorting zone and a lower sorting zone by a screen, which can sort diaphragms of different particle sizes. The sorting power of the upper and lower sorting zones can be adjusted separately, and both the upper and lower sorting zones are equipped with material distributors to improve the material dispersion effect, resulting in good sorting effect and a high recovery rate.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit the present invention. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0019] Figure 1 Overall schematic diagram of the device provided in the embodiments of this utility model Figure 1 ;

[0020] Figure 2 Overall schematic diagram of the device provided in the embodiments of this utility model Figure 2 ;

[0021] Figure 3 Partial schematic diagram of the device provided in the embodiment of this utility model Figure 1 ;

[0022] Figure 4 Partial schematic diagram of the device provided in the embodiment of this utility model Figure 2 ;

[0023] Figure 5 A schematic diagram of the sieve provided in an embodiment of this utility model;

[0024] Figure 6 A schematic diagram of a material distributor provided in an embodiment of this utility model.

[0025] Icons: Sorting box 1; Upper sorting zone 101; Lower sorting zone 102; Diaphragm outlet 103; Heavy material outlet 104; Lower separation plate 105; Air-powered sorting component 2; Sorting fan 201; Air outlet duct 202; Airflow diffuser 203; Base 3; Feed inlet 4; Flow meter 401; Cyclone dust collector 5; Material distributor 6; Rotating shaft 601; Swinging disc 602; Dispersing swing rod 603; Drive linkage 604; Rotating wheel 605; Distributor motor 606; Screen 7. Detailed Implementation

[0026] The following description and accompanying drawings fully illustrate specific embodiments described herein to enable those skilled in the art to practice them. Some embodiments may include or substitute parts and features of other embodiments. The scope of the embodiments herein encompasses the entire scope of the claims and all available equivalents thereof. Throughout this document, the terms “first,” “second,” etc., are used only to distinguish one element from another without requiring or implying any actual relationship or order between the elements. Indeed, a first element can also be referred to as a second element, and vice versa. Furthermore, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a structure, apparatus, or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a structure, apparatus, or device. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the structure, apparatus, or device that includes said element. The various embodiments described herein are presented in a progressive manner, with each embodiment focusing on its differences from other embodiments; similar or identical parts between embodiments can be referred to interchangeably.

[0027] The terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used in this document to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings. They are used solely for the convenience of describing this document and for 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. In the description herein, unless otherwise specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two elements; they can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0028] In this document, unless otherwise stated, the term "multiple" means two or more.

[0029] In this article, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0030] In this article, the term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0031] Where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0032] The following is in conjunction with the appendix Figure 1-6 The present invention will be described in further detail below.

[0033] like Figure 1 As shown, an apparatus for sorting diaphragms in materials after lithium battery crushing includes: a sorting box 1, the interior of which is divided into an upper sorting zone 101 and a lower sorting zone 102 by a screen 7; diaphragm outlets 103 and heavy material outlets 104 are provided on both sides of the upper and lower sorting zones 101 and 102; both the upper and lower sorting zones 101 and 102 are equipped with wind-driven sorting components 2 for blowing materials toward the diaphragm outlets 103; the sorting box 1 is connected to a base 3 by multiple evenly distributed elastic support members; vibration components are connected to the screen 7 and the lower separation plate 105 at the bottom of the lower sorting zone 102. The upper sorting zone 101 is connected to a feed inlet 4 located at the top of the sorting box 1, and a flow meter 401 for monitoring the feed rate is provided on the feed inlet 4.

[0034] The sorting box 1 is divided into an upper sorting zone 101 and a lower sorting zone 102 by a screen 7. During sorting, the material to be sorted is fed into the upper sorting zone 101 of the sorting box 1 through the feed inlet 4. The wind-powered sorting component 2 and the vibrating component are activated. The vibrating component vibrates the screen 7 and the lower separation plate 105 at the bottom of the lower sorting zone 102, causing materials of different sizes to be screened. Larger materials remain in the upper sorting zone 101, while smaller materials fall through the screen 7 into the lower sorting zone 102. Then, the wind-powered sorting component 2 is activated. Since the separator in the broken lithium battery material is relatively light, the wind-powered sorting component 2 can blow the separator towards the separator outlet 103, causing the separator to be separated out through the separator outlet 103. The screen 7 and the lower separation plate 105 are at a higher horizontal height than the screen 7 and the lower separation plate 105 near the heavy material outlet 104. The sorting box 1 is connected to the base 3 by multiple evenly arranged elastic support members, so that other materials after the lithium battery is broken move towards the heavy material outlet 104 under the vibration of the vibrating components, thereby achieving effective sorting of the diaphragm and other heavy materials. Both the upper sorting zone 101 and the lower sorting zone 102 are equipped with wind-powered sorting components 2 for blowing materials towards the diaphragm outlet 103, providing wind power sources to the upper sorting zone 101 and the lower sorting zone 102 respectively. The wind power is adjustable independently, and the upper and lower layers do not affect each other, ensuring the sorting effect.

[0035] The air-powered sorting component 2 includes: a sorting fan 201 installed inside the equipment cavity of the base 3; the outlet of the sorting fan 201 is connected to an outlet duct 202; one end of the outlet duct 202, inserted into the upper sorting zone 101 or the lower sorting zone 102, is connected to an airflow disperser 203; the airflow disperser 203 is respectively located on the side of the upper sorting zone 101 or the lower sorting zone 102 near the heavy material outlet 104. After the sorting fan 201 is started, sorting air is sent into the upper sorting zone 101 or the lower sorting zone 102 through the cooperation of the outlet duct 202 and the airflow disperser 203; after the sorting fan 201 is started, the sorting air is sent into the upper sorting zone or the lower sorting zone through the outlet duct 202 and the airflow disperser 203. Materials of different densities experience different forces in the rising airflow. Materials with lower density experience a greater proportion of upward wind force relative to gravity, making them easily lifted by the airflow and carried by it. Conversely, materials with higher density are more significantly affected by gravity, are less easily carried by the airflow, and tend to remain at the bottom or move downwards. This allows for separation based on density differences. The airflow diffuser 203, positioned near the outlet for heavier materials, ensures a more uniform distribution of airflow within the sorting zone. This uniform airflow avoids sorting errors caused by excessively strong or weak local airflow, allowing materials of different densities to be sorted in a relatively stable airflow environment, thus improving sorting accuracy. The continuous supply of sorting air provides power for the transport of lighter materials, which can be quickly carried by the airflow and moved in a specific direction, accelerating the sorting speed. Compared to other sorting methods, wind-powered sorting can process large quantities of material in a shorter time, improving the efficiency of the entire sorting process. The optimized placement of the airflow diffuser 203 ensures effective airflow coverage within the sorting zone. This allows materials to promptly contact the airflow and begin the sorting process upon entering the zone, reducing their residence time and further optimizing the sorting flow. The upper and lower sorting zones can perform sorting operations independently. This allows the equipment to process different types or batches of materials simultaneously, improving its versatility and adaptability to meet diverse production needs.

[0036] The feed inlet 4 is located between the airflow diffuser 203 and the diaphragm outlet 103, and the distance between the feed inlet 4 and the airflow diffuser 203 is smaller than the distance between the feed inlet 4 and the diaphragm outlet 103. Because the distance between the feed inlet 4 and the airflow diffuser 203 is small, the material can quickly and fully contact the sorting air supplied by the airflow diffuser 203 after entering the sorting area. This rapid contact allows the sorting air to act on the material promptly, separating it according to its density differences. For example, lighter materials will be immediately lifted by the airflow, while heavier materials will begin to move downwards under the combined action of gravity and airflow, improving the initial efficiency of the sorting. Sufficient air-material contact helps improve the accuracy and precision of the sorting. After entering the sorting area, the material is uniformly affected by the airflow, avoiding sorting errors caused by insufficient contact between the material and the airflow, allowing materials of different densities to be separated more clearly, thereby improving the overall effectiveness of the sorting process.

[0037] The elastic support includes metal springs. The bottom or side of the sorting box 1 is connected to the base 3 via multiple metal springs evenly arranged around its outer side. These multiple evenly arranged metal springs allow the sorting box 1 to generate relatively uniform vibration in all directions. The screen 7 and the lower separation plate 105 will not only vibrate vertically but may also experience slight horizontal vibrations. This multi-dimensional vibration mode can more comprehensively act on the material, improving the material's flowability and passage on the screen 7, and enhancing the separation effect of the lower separation plate 105 on different materials.

[0038] The device for sorting the diaphragm in the material after lithium battery crushing further includes: a cyclone dust collector 5, the dust suction port of which is inserted into the upper sorting zone 101 of the sorting box 1 to collect the dust generated during the sorting vibration process.

[0039] The vibrating components include two electromagnetic vibrators installed on the screen 7 and the lower separation plate 105 to ensure the vibrating screening and sorting effect.

[0040] Multiple curved grids are evenly arranged on the screen 7 to improve the material dispersion effect.

[0041] Both the upper sorting zone 101 and the lower sorting zone 102 are equipped with material distributors 6 for dispersing materials. The material distributor 6 in the upper sorting zone 101 is located directly below the feed inlet 4.

[0042] The material distributor 6 includes: a rotating shaft 601 rotatably connected to a screen 7 or a lower separation plate 105; multiple dispersing rods 603 fixedly connected to a swing disk 602 fixed on the rotating shaft 601; the bottom surfaces of the dispersing rods 603 slidingly fitted onto the screen 7 or the lower separation plate 105; the swing arm of the swing disk 602 is rotatably connected to one end of a drive rod 604; the other end of the drive rod 604 is rotatably connected to an eccentric position on a rotating wheel 605; and the rotating wheel 605 is fixed on the output shaft of the distribution motor 606. The output shaft of the distributed motor 606 drives the rotating wheel 605 to rotate. The rotating wheel 605 drives one end of the drive connecting rod 604 to rotate in a circular motion. The other end of the drive connecting rod 604 drives the swing disk 602 to swing back and forth at a certain angle around the axis of the rotating shaft 601 through the swing arm. The swing disk 602 drives multiple dispersing swing rods 603 to swing, thereby dispersing the material on the screen 7 or the lower separation plate 105, improving the uniformity of material dispersion, and improving the sorting and screening effect. The material distributor 6 can also be a distributor purchased from the market, which can be selected according to actual needs.

[0043] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims.

[0044] This invention is not limited to the structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.

Claims

1. An apparatus for sorting separators in materials after lithium battery crushing, characterized in that, include: The sorting box is divided into an upper sorting zone and a lower sorting zone by a screen. Both the upper and lower sorting zones have diaphragm outlets and heavy material outlets on both sides. Both the upper and lower sorting zones are equipped with air-powered sorting components for blowing materials toward the diaphragm outlets. The sorting box is connected to the base by multiple evenly distributed elastic support members. Vibration components are connected to the screen and the lower separation plate at the bottom of the lower sorting zone.

2. The apparatus for sorting separators in materials after lithium battery crushing, as described in claim 1, is characterized in that, The upper sorting zone is connected to the feed inlet located at the top of the sorting box, and a flow meter is installed on the feed inlet to monitor the feed amount.

3. The apparatus for sorting separators in materials after lithium battery crushing, as described in claim 2, is characterized in that, The air-powered sorting component includes: a sorting fan installed in the equipment cavity of the base, the air outlet of the sorting fan being connected to an air outlet pipe, and an airflow disperser connected to one end of the air outlet pipe inserted into the upper or lower sorting zone. The airflow dispersers are respectively located on the side of the upper or lower sorting zone near the outlet of the heavy material.

4. The apparatus for sorting separators in materials after lithium battery crushing, as described in claim 3, is characterized in that... The feed inlet is located between the airflow diffuser and the diaphragm outlet, and the distance between the feed inlet and the airflow diffuser is smaller than the distance between the feed inlet and the diaphragm outlet.

5. The apparatus for sorting separators in materials after lithium battery crushing, as described in claim 2, is characterized in that, The elastic support includes: metal springs, with multiple metal springs evenly arranged around the outside of the bottom or side of the sorting box connected to the base.

6. The apparatus for sorting separators in materials after lithium battery crushing, as described in claim 2, is characterized in that, Also includes: Cyclone dust collector: The suction port of the cyclone dust collector is inserted into the upper sorting area of ​​the sorting box.

7. The apparatus for sorting separators in materials after lithium battery crushing, as described in claim 2, is characterized in that, The vibrating components include two electromagnetic vibrators mounted on the screen and the lower separation plate.

8. The apparatus for sorting separators in materials after lithium battery crushing, as described in claim 2, is characterized in that, Both the upper and lower sorting zones are equipped with material distributors for dispersing materials. The material distributor in the upper sorting zone is located directly below the feed inlet.

9. The apparatus for sorting separators in materials after lithium battery crushing, as described in claim 8, is characterized in that, The material distributor includes: a rotating shaft rotatably connected to a screen or a lower separation plate; multiple dispersing rods fixed to a swing disk on the rotating shaft; the bottom surfaces of the dispersing rods slidingly fitted onto the screen or the lower separation plate; the swing arm of the swing disk is rotatably connected to one end of a drive rod; the other end of the drive rod is rotatably connected to an eccentric position on a rotating wheel; and the rotating wheel is fixed to the output shaft of the distribution motor.

10. The apparatus for sorting separators in materials after lithium battery crushing, as described in claim 1, is characterized in that, Multiple curved grids are evenly arranged side by side on the screen.

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