Separating device and method of operation thereof

Abstract

The application provides a separating device, which comprises a static chamber, a shredder, a conveying belt, a laying platform, an air duct and a conveying unit. The shredder is arranged in the static chamber and is used for shredding waste edge material into a plurality of film pieces. The conveying belt is arranged in the static chamber and is connected with the shredder and used for receiving and conveying the plurality of film pieces. The laying platform is arranged in the static chamber and comprises an inlet connected with the other end of the conveying belt and an opposite outlet. The inlet is used for receiving the plurality of film pieces and laying the plurality of film pieces on the laying platform. The air duct is communicated with the static chamber and is used for exhausting air in the static chamber. The conveying unit is connected with the laying platform, receives the plurality of film pieces from the outlet of the laying platform and moves the plurality of film pieces out of the static chamber.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic components, and particularly relates to a separation device capable of separating organic solvents or difficult-to-separate liquids in solids more efficiently and automatically. BACKGROUND

[0002] As an energy storage device, batteries are widely used in various electronic products and electric vehicles. With the increasing demand for electronic products, the consumption of batteries is also gradually increasing. The amount of discarded batteries is also staggering. If these batteries are not treated at all and are buried together, water bodies will be polluted and soil will lose its function.

[0003] Waste batteries contain high-value metals such as cobalt, iron, aluminum, and copper. Recycling and reusing waste batteries through certain treatment methods not only reduces the impact on the environment but also realizes the recycling of resources.

[0004] At present, during the production process of lithium battery isolation membranes, the edge material of the isolation membrane is cut off. Since the edge material of the isolation membrane contains dichloromethane, most existing process means are a roll of waste isolation membrane. Since the organic solvent cannot be effectively volatilized, it will not only cause pollution and loss of dichloromethane in subsequent processing. Currently, there is no large-scale equipment to efficiently and fully automatically process the separation of organic solvents in solids to prevent toxic organic solvents from causing safety hazards. SUMMARY

[0005] Therefore, the present application aims to provide an automatic device. When the lithium battery isolation membrane contains liquid, volatile organic solvent or other toxic reagent, the separation requirement is needed, including the pretreatment of waste lithium battery isolation membrane, solid shredding, dispersion and other treatments. The dispersed material is placed in a closed static chamber. Different temperatures can be adjusted according to the boiling points of organic solvents or other liquids. Negative pressure is extracted. The whole process is automatically processed to prevent toxic organic solvents from causing safety hazards.

[0006] To achieve the above-mentioned purpose, the technical scheme of the present application is as follows:

[0007] The present application provides a separating device, comprising a static chamber, a shredder, a conveyor belt, a flat laying platform, an air duct, and a transport unit, the shredder is arranged in the static chamber to shred waste material into a plurality of pieces, the conveyor belt is arranged in the static chamber and connected to the shredder to receive and convey the plurality of pieces, the flat laying platform is arranged in the static chamber and comprises an inlet connected to the other end of the conveyor belt and an opposite outlet, the inlet receives the plurality of pieces to lay on the flat laying platform, the air duct is in communication with the static chamber to exhaust air in the static chamber, and the transport unit is connected to the flat laying platform to receive the plurality of pieces from the outlet of the flat laying platform and move the plurality of pieces out of the static chamber.

[0008] Preferably, a heating duct is further arranged in communication with the static chamber to supply heated air to change the temperature in the static chamber.

[0009] Preferably, the temperature of the heated air supplied by the heating duct is maintained between 30 and 50 degrees.

[0010] Preferably, the flat laying platform comprises a plurality of crawler laying plates, two adjacent crawler laying plates are arranged in an upper and lower spaced manner, and the uppermost crawler laying plate is connected to the conveyor belt.

[0011] Preferably, the lowermost crawler laying plate is connected to the transport unit.

[0012] Preferably, the static chamber comprises a static area beside the outlet, the plurality of pieces on the flat laying platform is allowed to be static in the static area before being conveyed to the transport unit.

[0013] Preferably, a platform lifting support is further arranged in connection with the plurality of crawler laying plates to move the plurality of crawler laying plates up and down.

[0014] Preferably, the static chamber is maintained in a closed state, and the air duct maintains the pressure of the static chamber between -0.01 and -0.5 kPa.

[0015] Preferably, a testing unit is further arranged in the air duct to detect the plurality of pieces.

[0016] Another object of the present application provides a running method of the separation device, characterized in that, comprising: S1, the waste edge material enters the shredder and is shredded into a plurality of film fragments and is conveyed to the conveying belt; S2, the heating pipeline is connected to heated air to maintain the temperature of the standing chamber, and the air in the standing chamber is extracted outwards by the air extraction pipeline; S3, the conveying belt conveys the plurality of film fragments to the uppermost crawler-type placement plate, so that the plurality of film fragments are laid on the uppermost crawler-type placement plate; and S4, the uppermost crawler-type placement plate moves forward, so that the plurality of film fragments move from one end close to the conveying belt to the other end away from the conveying belt and fall on the sub-upper crawler-type placement plate below the uppermost crawler-type placement plate, the sub-upper crawler-type placement plate moves forward, so that the plurality of film fragments move in the opposite direction of the movement of the uppermost crawler-type placement plate; S5, the plurality of film fragments fall on the lowermost crawler-type placement plate, the lowermost crawler-type placement plate moves forward, so that the plurality of film fragments move in the opposite direction of the movement of the sub-upper crawler-type placement plate and are conveyed to the standing area to stand, and then move outwards from the standing area to the transportation unit.

[0017] Preferably, each crawler-type placement plate comprises a first end receiving the plurality of film fragments and a second end opposite to the first end, and the first end and the second end of adjacent two crawler-type placement plates are arranged in a staggered manner.

[0018] According to the present application, a new type of automatic equipment is provided, which is aimed at the need of separating liquid, volatile organic solvent or other toxic reagents contained in waste edge material solids, and the separation device can effectively separate dichloromethane in waste edge material and enter the corresponding recycling equipment, which solves the problem of environmental pollution and recovers part of the dichloromethane to reduce loss. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 FIG. 1 is a structural schematic diagram of the separation device of the present application;

[0020] Figure 2 FIG. 5 is a step diagram of the running method of the separation device of the present application.

[0021] COMPONENT NUMBER EXPLANATION

[0022] 1 standing chamber

[0023] 11 standing area

[0024] 2 shredder

[0025] 21 discharge port

[0026] 3 conveying belt

[0027] 4 laying platform

[0028] 40 inlet

[0029] 400 Exit

[0030] 41 crawler placement plate

[0031] 411 First End

[0032] 412 Second End

[0033] 5 Exhaust duct

[0034] 6 transport units

[0035] 7 Heating pipes

[0036] 8-platform lifting bracket

[0037] 9 test units

[0038] a Broken membrane

[0039] Steps S1-S5 DETAILED DESCRIPTION

[0040] The following describes the specific embodiments of the present invention in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0041] The endpoints of the ranges and any values ​​disclosed herein are not limited to the precise ranges or values, and these ranges or values ​​should be understood to include values ​​close to these ranges or values. For numerical ranges, the endpoints of each range, the endpoints of each range and individual point values, and the individual point values ​​can be combined with each other to obtain one or more new numerical ranges, which should be considered to be specifically disclosed herein.

[0042] like Figure 1 As shown, a specific embodiment of the present invention proposes a separation device, which includes a static chamber 1, a shredder 2, a conveyor belt 3, a flat platform 4, an exhaust duct 5, a transport unit 6, a heating duct 7, a platform lifting bracket 8, and a testing unit 9.

[0043] The separation device of the present invention can be used to separate solids containing liquids, volatile organic solvents, or other toxic reagents. Specifically, it is used to separate discarded lithium battery separator scraps. Separator scraps contain dichloromethane, and the organic solvent cannot be effectively volatilized, causing pollution and dichloromethane loss during subsequent processing. This separation device can effectively separate the dichloromethane from the separator and feed it to the corresponding recovery equipment, thereby solving the environmental pollution problem and recovering this dichloromethane, reducing losses.

[0044] The static chamber 1 is kept in a sealed state and includes a static area 11 .

[0045] The shredder 2 is arranged in the static chamber 1 to shred the waste lithium battery separator into a plurality of shredded membranes a. Since a large amount of organic solvent is volatilized during the shredding process of the waste lithium battery separator, the shredder is arranged in the static chamber 1 to avoid secondary pollution caused by volatilization of the organic solvent.

[0046] The shredder 2 includes a discharge port 21 for conveying the plurality of shredded membranes a to the conveyor belt 3.

[0047] The conveyor belt 3 is arranged in the static chamber 1 and connected to the shredder 2 to receive and convey the plurality of shredded membranes a.

[0048] The flat laying platform 4 is arranged in the static chamber 1 and includes an inlet 40 connected to the other end of the conveyor belt 3 and an opposite outlet 400. The inlet 40 receives the plurality of shredded membranes a to lay on the flat laying platform 4. The static area 11 is located beside the outlet 400.

[0049] The flat laying platform 4 includes a plurality of crawler laying plates 41. Adjacent two crawler laying plates 41 are arranged in an upper and lower interval. The uppermost crawler laying plate 41 is connected to the conveyor belt 3. The lowermost crawler laying plate 41 is connected to the transportation unit 6.

[0050] In actual implementation, when the flat laying platform 4 is a single-layer or multi-layer crawler laying plate 41 structure, it can be in a belt conveyor mode. A motor drive system is used to drive the driving wheel to move the belt. The belt is used as a platform to move the plurality of shredded membranes a forward and backward.

[0051] The crawler laying plate 41 is used to convey the light-weighted shredded membranes a. A motor with minimum power is used to drive the belt to move forward and backward. The weight of the single-layer crawler laying plate 41 is reduced. If it is a multi-layer crawler laying plate 41, the lifting system is used to connect multiple platforms. The lifting system can be driven by a motor, a gear sliding groove, a driving wheel, and a driven wheel, or a hydraulic lifting system to realize the up-and-down movement. In this way, on the one hand, the frequency of manual operation is reduced, and on the other hand, the frequency of switching the equipment up and down is reduced.

[0052] Each crawler laying plate 41 includes a first end 411 for receiving the plurality of shredded membranes a and an opposite second end 412. Adjacent two crawler laying plates 41 are arranged in an offset manner.

[0053] Further, the first end 411 of the uppermost crawler laying plate 41 is connected to the conveyor belt 3. The second end 412 of the lowermost crawler laying plate 41 is connected to the transportation unit 6.

[0054] The plurality of shredded membranes a on the flat platform 4 will be placed in the static area 11 for a period of time, and then transported to the transportation unit 6. Specifically, the plurality of shredded membranes a on the lowest layer of the crawler type placement plate 41 will be placed in the static area 11 for a period of time, and then transported to the transportation unit 6.

[0055] During normal operation, the time to fill the entire platform can be calculated according to the number of shredded membranes a at the discharge port 21 of the shredder 2 and the moving speed of the plurality of shredded membranes a before and after being placed on the flat platform 4, or it can be manually stopped.

[0056] The exhaust duct 5 communicates with the static chamber 1 and exhausts air in the static chamber 1. The static chamber 1 is kept closed, and the exhaust duct 5 exhausts air to keep the pressure in the static chamber 1 at -0.01 to -0.5 kPa. In this way, dichloromethane in the waste lithium battery separator is extracted by negative pressure, and the device extracts gas by micro-negative pressure or achieves the purpose of extracting gas by negative pressure through the exhaust duct.

[0057] The transportation unit 6 is connected with the flat platform 4, receives the plurality of shredded membranes a at the outlet 400 of the flat platform 4, and moves the plurality of shredded membranes a out of the static chamber 1.

[0058] The heating duct 7 communicates with the static chamber 1 and introduces heated air to change the temperature in the static chamber 1. The temperature of the heated air introduced by the heating duct 7 is maintained at 30 to 50 degrees. The heating duct 7 can be uniformly distributed around the static chamber 1.

[0059] Specifically, for dichloromethane solvent, its boiling point is about 39℃, by introducing heated air to increase the temperature of the static chamber 1, keeping the temperature above 30℃ can significantly improve the separation effect of the plurality of shredded membranes a. The exhaust duct 5 exhausts air to keep the pressure in the static chamber 1 at -0.01 kPa. In this way, dichloromethane in the waste lithium battery separator is extracted by negative pressure, achieving the purpose of extracting gas.

[0060] The relationship between the evaporation rate of the organic solvent, the temperature, the contact area, and the air flow rate of the contact surface is used to improve the evaporation rate.

[0061] The platform lifting support 8 is connected with the plurality of crawler type placement plates 41 to drive the plurality of crawler type placement plates 41 to move up and down.

[0062] The platform lifting support 8 is provided with a guide rail for driving the plurality of crawler-type placement plates 41 to move up and down, the flat platform 4 moves up and down through the guide rail of the platform lifting support 8 perpendicular to the ground, the guide rail can not only fix the flat platform 4, but also serve as a power source for the plurality of crawler-type placement plates 41 to move up and down, and the guide rail of the platform lifting support 8 is powered by a configured motor. In normal operation, the guide rail does not need to move up and down, and can be designed in a fixed height form.

[0063] The test unit 9 is arranged in the air extraction duct 5 to detect the plurality of broken membranes a, when the outlet concentration of the air extraction duct 5 is low, it indicates that the plurality of broken membranes a is purified, and then transported to the standing area 11 for a period of time, and then transported to the transportation unit 6 to enter the corresponding recycling equipment, so as to solve the environmental pollution problem.

[0064] The standing chamber 1 has a cargo inlet and a cargo outlet, when the waste lithium battery diaphragm enters the standing chamber 1, the cargo inlet and the cargo outlet are closed, the air extraction duct 5 is actuated to perform negative pressure extraction, so as to realize sealing. When the plurality of broken membranes a is purified, the article outlet is opened to transport the plurality of broken membranes a out. The device is tested, and the standing treatment efficiency can be increased by 7.5 times.

[0065] As shown in Figure 2 Another specific embodiment of the present application proposes a running method of the separation device, which is characterized by comprising the following steps:

[0066] S1, the waste lithium battery diaphragm enters the shredder 2, and is shredded into a plurality of broken membranes a and conveyed to the conveyor belt 3.

[0067] S2, the heating duct 7 introduces heated air to maintain the temperature of the standing chamber 1, and the air extraction duct 5 extracts air in the standing chamber 1 outward.

[0068] S3, the conveyor belt 3 conveys the plurality of broken membranes a to the uppermost crawler-type placement plate 41, so that the plurality of broken membranes a is laid on the uppermost crawler-type placement plate 41.

[0069] S4, the uppermost crawler-type placement plate 41 moves forward, so that the plurality of broken membranes a moves from one end close to the conveyor belt 3 to the other end away from the conveyor belt 3 and falls on the next upper crawler-type placement plate 41 below the uppermost crawler-type placement plate 41, and the next upper crawler-type placement plate 41 moves forward, so that the plurality of broken membranes a moves in the opposite direction of the movement of the uppermost crawler-type placement plate 41.

[0070] S5, the plurality of pieces of film a falls on the lowermost track placing plate 41, the lowermost track placing plate 41 moves forward, the plurality of pieces of film a moves in the opposite direction of the upper track placing plate 41, and is transported to the static area 11, and after a period of time, moves from the static area 11 to the transport unit 6.

[0071] The above-mentioned content related to common knowledge is not described in detail, and those skilled in the art can understand it.

[0072] The above only describes some specific embodiments of the present application, and does not limit the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application. The technical scope of the present application is not limited to the content in the specification, and the technical scope should be determined according to the scope of claims.

Claims

1. A separation device for separating dichloromethane from waste diaphragm scraps, comprising: a rest room; a heating pipe, communicating with the static chamber and passing heated air into the static chamber to change the temperature therein; a shredder, disposed in the static chamber, for shredding the waste edge material into a plurality of shredded films; a conveyor belt, disposed in the static chamber and connected to the shredder, for receiving and conveying the plurality of shredded films; A paving platform is provided in the static chamber, comprising an inlet connected to the other end of the conveyor belt and an opposite outlet, wherein the inlet receives the plurality of shredded films to be laid on the paving platform, and the paving platform comprises a plurality of crawler-type placement plates, wherein adjacent crawler-type placement plates are arranged at intervals up and down, and the crawler-type placement plate on the uppermost layer is connected to the conveyor belt, wherein: Each crawler-type placement plate includes a first end for receiving the plurality of broken films and an opposite second end, and the first ends and second ends of two adjacent crawler-type placement plates are staggered; an exhaust duct connected to the static chamber to extract the air in the static chamber to the outside; and A transport unit is connected to the flattening platform, receives the plurality of broken films at the outlet of the flattening platform, and moves the plurality of broken films out of the static chamber.

2. The separation device according to claim 1, wherein: The temperature of the heated air introduced into the heating pipe is maintained between 30 degrees and 50 degrees.

3. The separation device according to claim 1, wherein: The crawler type placing plate located at the lowest layer is connected with the transport unit.

4. The separation device according to claim 1, wherein: The still chamber includes a still area located next to the outlet. The plurality of broken films on the flattening platform will be still in the still area and then transported to the transport unit.

5. The separation device according to claim 1 further comprises a platform lifting bracket connected to the plurality of crawler-type placement plates to drive the plurality of crawler-type placement plates to move up and down.

6. The separation device according to claim 1, wherein: The static chamber is kept in a sealed state, and the exhaust duct maintains the pressure of the static chamber at -0.01 to -0.5 kPa.

7. The separation device according to claim 4 further comprises a testing unit disposed in the exhaust duct for detecting the plurality of broken films.

8. A method for operating a separation device according to any one of claims 1 to 7, characterized in that: include: S1, the waste edge material enters the shredder, is shredded into multiple pieces of film, and is conveyed to the conveyor belt; S2, the heating pipe introduces heated air to maintain the temperature of the static chamber, and the exhaust pipe extracts the air in the static chamber to the outside; S3, the conveyor belt conveys the plurality of film fragments to the uppermost crawler-type placement plate, so that the plurality of film fragments are laid flat on the uppermost crawler-type placement plate; S4, the crawler-type placement plate on the top layer moves forward, causing the plurality of film fragments to move from one end close to the conveyor belt to the other end away from the conveyor belt and fall onto the crawler-type placement plate on the second upper layer below the crawler-type placement plate on the top layer. The crawler-type placement plate on the second upper layer moves forward, causing the plurality of film fragments to move in the opposite direction of the movement of the crawler-type placement plate on the top layer; as well as S5. The plurality of broken films fall onto the crawler-type placement plate on the lowest layer, and the crawler-type placement plate on the lowest layer moves forward, so that the plurality of broken films move in the opposite direction of the movement of the crawler-type placement plate on the next upper layer, and are transported to the static area for static placement, and then move outward from the static area to the transport unit.

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