Pole piece stripping device and lithium battery recycling equipment

Abstract

The utility model discloses a pole piece stripping device and lithium battery recovery equipment, and relates to the technical field of lithium battery recovery. The pole piece stripping device comprises a water tank box, a leakage net, a disturbance mechanism, a fishing mechanism, a first discharging mechanism and a second discharging mechanism. The leakage net is installed in the water tank box, the water disturbance mechanism is installed in the water tank box and arranged on the outer side of the leakage net, the fishing mechanism is installed above the water tank box, the position of the fishing mechanism corresponds to the position of the first discharging mechanism, one part of the second discharging mechanism is arranged below the leakage net, and the other part of the second discharging mechanism extends out of the water tank box. According to the pole piece stripping device provided by the utility model, automatic stripping and decomposition of pole piece fragments can be realized, collision and cutting of the pole piece fragments are avoided, battery material loss is avoided, the recovery rate is high, complete separation and independent discharging of a current collector and a battery material can be realized, and the separation efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery recycling, and in particular to a pole piece stripping device and lithium battery recycling equipment. Background Art

[0002] At present, with the explosive growth in sales of new energy vehicles, the amount of retired batteries is about to enter a period of rapid growth. The current way to recycle batteries is generally to first crush the batteries, so that the positive electrode, negative electrode, diaphragm and shell are all turned into small pieces or small particles mixed together, and then separated to separate the electrode fragments, and then use the reaction solution to soak and decompose the electrode fragments to achieve the separation of the current collector and battery materials. However, during the soaking and decomposition of the electrode fragments, if the reaction solution is stirred with a stirring paddle to accelerate the separation, the stirring paddle is likely to collide and cut the electrode fragments, causing the electrode fragments to further break, resulting in battery material loss and reduced battery material recovery rate. In addition, the battery materials and current collectors after separation are mixed in the reaction solution, and physical separation is required to separate the battery materials and current collectors. The steps are cumbersome and the separation efficiency is low.

[0003] In view of this, it is particularly important to design and manufacture a pole piece stripping device and lithium battery recycling equipment with high recovery rate and separation efficiency, especially in lithium battery recycling. Utility Model Content

[0004] The purpose of the utility model is to provide a pole piece stripping device, which can realize the automatic stripping and decomposition of pole piece fragments, avoid collision and cutting of pole piece fragments, avoid loss of battery materials, have a high recovery rate, and can realize complete separation and separate discharge of current collector and battery material, with high separation efficiency.

[0005] Another object of the utility model is to provide a lithium battery recycling device, which can realize the automatic stripping and decomposition of pole piece fragments, avoid collision and cutting of pole piece fragments, avoid loss of battery materials, have a high recovery rate, and can realize complete separation and separate discharge of current collector and battery material, with high separation efficiency.

[0006] The utility model is realized by adopting the following technical solutions.

[0007] A pole piece stripping device comprises a water tank box, a strainer, a disturbance mechanism, a scooping mechanism, a first discharging mechanism and a second discharging mechanism. The strainer is installed in the water tank box, the water tank box is used to contain a stripping liquid, the strainer is used to feed pole piece fragments, the disturbance mechanism is installed in the water tank box and is arranged on the outside of the strainer. The disturbance mechanism is used to disturb the stripping liquid so that the stripping liquid passes through the strainer to impact the pole piece fragments, and accelerates the separation of the pole piece fragments into a current collector and a battery material. The scooping mechanism is installed above the water tank box, and the position of the scooping mechanism corresponds to the position of the first discharging mechanism. The scooping mechanism is used to scoop the current collector floating in the strainer to the first discharging mechanism. The first discharging mechanism is used to drive the current collector to be discharged. A part of the second discharging mechanism is arranged below the strainer, and the other part extends out of the water tank box. The second discharging mechanism is used to send the battery material that settles under the action of gravity and falls out of the strainer out of the water tank box.

[0008] Optionally, the scooping mechanism includes a driving assembly, a rotating ring and a scooping net. The driving assembly is installed on the water tank box and connected to the rotating ring. The scooping net is connected to the rotating ring. The scooping net is used to extend into the leakage net to scoop the collector. The scooping net is also used to deliver the collector to the first discharging mechanism.

[0009] Optionally, the scooping net includes a fixed part and a scooping part, one end of the fixed part is fixedly connected to the rotating ring, and the other end is hinged to the scooping part, and the scooping part is used to rotate to a first extreme position relative to the fixed part under the action of gravity and stripping liquid resistance to facilitate scooping the collector, and the scooping part is also used to rotate to a second extreme position relative to the fixed part under the action of gravity to push the collector to the first discharging mechanism.

[0010] Optionally, the scooping portion includes a straight section and an arc section connected to each other, the straight section is hinged to the fixed portion, and the bending direction of the arc section is the same as the direction in which the scooping portion rotates to fold relative to the fixed portion and is the same as the rotation direction of the rotating ring.

[0011] Optionally, there are multiple scooping nets, which are arranged in a circular array on the rotating ring; and / or, there are two rotating rings, which are coaxial and oppositely arranged, and the scooping net is connected between the two rotating rings.

[0012] Optionally, the driving assembly includes a first driving motor, a chain transmission, a first load-bearing wheel and a second load-bearing wheel. The first driving motor is installed on the water tank box and is connected to the first load-bearing wheel through the chain transmission. The first load-bearing wheel and the second load-bearing wheel can be rotatably installed on the water tank box. The first load-bearing wheel, the second load-bearing wheel and the rotating ring are axially parallel. The rotating ring is mounted on the first load-bearing wheel and the second load-bearing wheel, and simultaneously rotates with the first load-bearing wheel and the second load-bearing wheel.

[0013] Optionally, a first discharging mechanism is arranged through the rotating ring, and the first discharging mechanism includes an outer shell and a belt conveying assembly. The outer shell is provided with a clearance opening, and the belt conveying assembly is arranged in the outer shell and corresponds to the position of the clearance opening. The belt conveying assembly is used to receive the collector that falls out of the scooping net and passes through the clearance opening, and deliver the collector to the collector collection box located below the end of the belt conveying assembly.

[0014] Optionally, the disturbance mechanism includes a second drive motor and a propeller. The second drive motor is installed in the water tank and connected to the propeller. The propeller is used to drive the stripping liquid to flow into the filter.

[0015] Optionally, the electrode stripping device also includes an auxiliary floating mechanism, which includes a first water pump and a water injection pipe. One end of the first water pump is connected to the water tank, and the other end is connected to the water injection pipe. The free end of the water injection pipe is arranged at the outer bottom of the colander. The first water pump is used to inject stripping liquid into the colander through the water injection pipe to assist the collector to float.

[0016] Optionally, the electrode stripping device also includes a feeding mechanism, which includes a second water pump, a water outlet pipe and a water inlet pipe. One end of the second water pump is connected to the water outlet pipe, and the other end is connected to the water inlet pipe. The filter is relatively provided with a feed end and a discharge end. The scooping mechanism is located at the discharge end, the water inlet pipe is arranged at the discharge end, and the water outlet pipe is arranged at the feed end. The second water pump is used to extract the stripping liquid at the discharge end to the feed end, so that the stripping liquid in the water tank box flows from the feed end to the discharge end, and drives the collector to move in a direction close to the scooping mechanism.

[0017] Optionally, the electrode stripping device further comprises a feeding mechanism, which is installed in the water tank box, and the leakage screen is provided with a feeding port, and the feeding mechanism is used to feed the electrode fragments into the leakage screen through the feeding port.

[0018] A lithium battery recycling device comprises the above-mentioned pole piece stripping device, which comprises a water tank box, a sieve, a disturbance mechanism, a scooping mechanism, a first discharging mechanism and a second discharging mechanism. The sieve is installed in the water tank box, the water tank box is used to hold a stripping solution, the sieve is used to feed pole piece fragments, the disturbance mechanism is installed in the water tank box and is arranged on the outside of the sieve, the disturbance mechanism is used to disturb the stripping solution so that the stripping solution passes through the sieve to impact the pole piece fragments, and accelerates the separation of the pole piece fragments into a current collector and a battery material. The scooping mechanism is installed above the water tank box, the position of the scooping mechanism corresponds to the position of the first discharging mechanism, the scooping mechanism is used to scoop the current collector floating in the sieve to the first discharging mechanism, the first discharging mechanism is used to drive the current collector to be discharged, a part of the second discharging mechanism is arranged below the sieve, and the other part extends out of the water tank box, and the second discharging mechanism is used to send the battery material that settles under the action of gravity and falls out of the sieve out of the water tank box.

[0019] The pole piece stripping device and lithium battery recycling equipment provided by the utility model have the following features:

[0020] Beneficial effects:

[0021] The utility model provides a pole piece stripping device, wherein a screen is installed in a water tank box, the water tank box is used for containing stripping liquid, the screen is used for feeding pole piece fragments, a disturbance mechanism is installed in the water tank box and is arranged on the outside of the screen, the disturbance mechanism is used for disturbing the stripping liquid so that the stripping liquid passes through the screen to impact the pole piece fragments, and accelerates the separation of the pole piece fragments into current collectors and battery materials, a scooping mechanism is installed above the water tank box, the position of the scooping mechanism corresponds to the position of the first discharging mechanism, the scooping mechanism is used for scooping the current collector floating in the screen to the first discharging mechanism, the first discharging mechanism is used for driving the current collector to be discharged, a part of the second discharging mechanism is arranged below the screen, and the other part extends out of the water tank box, and the second discharging mechanism is used for sending the battery material that settles under the action of gravity and falls out of the screen out of the water tank box. Compared with the prior art, the pole piece stripping device provided by the utility model adopts a disturbance mechanism arranged on the outside of the leakage net, a first discharging mechanism corresponding to the position of the scooping mechanism, and a second discharging mechanism partially arranged under the leakage net. Therefore, it can realize the automatic stripping and decomposition of pole piece fragments, avoid collision and cutting of pole piece fragments, avoid loss of battery materials, and have a high recovery rate. It can also realize complete separation and separate discharging of current collector and battery material, and has high separation efficiency.

[0022] The lithium battery recycling equipment provided by the utility model includes a pole piece stripping device, which can realize the automatic stripping and decomposition of pole piece fragments, avoid collision and cutting of pole piece fragments, avoid battery material loss, have a high recovery rate, and can realize complete separation of current collector and battery material and separate discharge, with high separation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 An axonometric view of a pole piece stripping device provided in an embodiment of the utility model;

[0025] Figure 2 A front view of a pole piece stripping device provided in an embodiment of the utility model;

[0026] Figure 3A top view of the cooperation between the scooping mechanism and the first discharging mechanism in the electrode stripping device provided in the embodiment of the utility model;

[0027] Figure 4 An isometric view of the cooperation between the scooping mechanism and the first discharging mechanism in the pole piece stripping device provided in the embodiment of the utility model;

[0028] Figure 5 for Figure 4 A schematic diagram of the structure in which the middle rotating ring cooperates with the first load-bearing wheel and the second load-bearing wheel at the same time;

[0029] Figure 6 A schematic diagram of the structure of the pole piece peeling device provided in the embodiment of the utility model, in which the disturbance mechanism, the auxiliary floating mechanism and the feeding mechanism are installed in the water tank box;

[0030] Figure 7 for Figure 6 A partial enlarged view of Figure VII;

[0031] Figure 8 for Figure 6 A partial enlarged view of VIII.

[0032] Icons: 100-electrode stripping device; 110-water tank; 120-leakage net; 121-leakage hole; 122-feeding end; 123-discharging end; 124-feeding port; 130-disturbance mechanism; 131-second drive motor; 132-propeller; 140-fishing mechanism; 141-drive assembly; 1411-first drive motor; 1412-chain transmission member; 1413-first load-bearing wheel; 1414-second load-bearing wheel; 142-rotating ring; 143-fishing net; 1431- Fixed part; 1432-fishing part; 1433-straight section; 1434-arc section; 150-first discharging mechanism; 151-housing; 152-belt conveying assembly; 153-yield port; 154-current collector collection box; 160-second discharging mechanism; 161-battery material collection box; 170-auxiliary floating mechanism; 171-first water pump; 172-water injection pipe; 180-feeding mechanism; 181-second water pump; 182-water outlet pipe; 183-water inlet pipe; 190-feeding mechanism. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0036] In the description of the present utility model, it should be noted that the terms "inside", "outside", "upper", "lower", "horizontal", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the features of the following embodiments can be combined with each other.

[0039] Please refer to Figure 1 and Figure 2 The embodiment of the utility model provides a lithium battery recycling device (not shown) for recycling lithium batteries. It can realize the automatic stripping and decomposition of pole piece fragments, avoid collision and cutting of pole piece fragments, avoid battery material loss, have a high recovery rate, and can realize complete separation and separate discharge of current collector and battery material, with high separation efficiency.

[0040] The lithium battery recycling equipment includes a crushing device (not shown), a sorting device (not shown) and a pole piece stripping device 100. The crushing device, the sorting device and the pole piece stripping device 100 are arranged in sequence, the crushing device is used to crush the lithium battery so that the pole piece, the diaphragm and the shell 151 are all mixed into small pieces or small particles, the sorting device is used to separate the pole piece fragments, and the pole piece stripping device 100 is used to strip and decompose the pole piece fragments so that the pole piece fragments are separated to obtain the current collector and the battery material.

[0041] In this embodiment, the size range of the pole piece fragments is 80mm 2 -300mm 2 .

[0042] The electrode stripping device 100 includes a water tank 110, a filter 120, a disturbance mechanism 130, a scooping mechanism 140, a first discharging mechanism 150, a second discharging mechanism 160, an auxiliary floating mechanism 170, a feeding mechanism 180 and a feeding mechanism 190. The filter 120 is installed in the water tank 110, the water tank 110 is used to hold the stripping liquid, and the filter 120 is used to feed the electrode fragments. The filter 120 is densely provided with a plurality of leak holes 121, and the leak holes 121 are used to allow the stripping liquid to enter the filter 120, so as to realize the chemical reaction between the stripping liquid and the electrode fragments, thereby separating the electrode fragments into battery materials and current collectors. The disturbance mechanism 130 is installed in the water tank box 110 and is arranged on the outside of the collapsing net 120. The disturbance mechanism 130 is used to disturb the stripping liquid so that the stripping liquid passes through the collapsing net 120 to impact the electrode fragments, accelerate the reaction between the stripping liquid and the electrode fragments, and make the electrode fragments separate into the collector and the battery material more quickly, thereby improving the separation efficiency. Moreover, since the disturbance mechanism 130 is arranged outside the collapsing net 120, it will not directly contact the electrode fragments, so it can avoid collision and cutting of the electrode fragments, avoid battery material loss, and improve the recovery rate.

[0043] It should be noted that the electrode fragments are separated to form a current collector and a battery material, wherein the current collector is in the form of a sheet, the area of ​​the current collector is larger than the area of ​​the leakage hole 121, the current collector cannot leave the leakage net 120 through the leakage hole 121, the leakage net 120 can limit the current collector, and the density of the current collector is smaller than the density of the stripping liquid, and it will float upward in the stripping liquid; the battery material is in the form of dust, and the density of the battery material is greater than the density of the stripping liquid, and it will settle downward in the stripping liquid and fall out of the leakage hole 121 of the leakage net 120.

[0044] Furthermore, the scooping mechanism 140 is installed above the water tank box 110, and the position of the scooping mechanism 140 corresponds to the position of the first discharging mechanism 150. The scooping mechanism 140 is used to scoop the floating collector in the collapsible net 120 to the first discharging mechanism 150, and the first discharging mechanism 150 is used to drive the collector to be discharged to the collector collection box 154, so as to realize the separate discharging function of the collector. A part of the second discharging mechanism 160 is arranged below the collapsible net 120, and the other part is extended out of the water tank box 110. The second discharging mechanism 160 is used to send the battery material that settles under the action of gravity and falls out of the collapsible net 120 out of the water tank box 110 and into the battery material collection box 161, so as to realize the separate discharging function of the battery material. In this way, the automatic stripping and decomposition of the pole piece fragments is realized, and the complete separation and separate discharging of the collector and the battery material are realized, and the separation efficiency is high.

[0045] The auxiliary floating mechanism 170 is installed in the water tank box 110. The auxiliary floating mechanism 170 is used to inject stripping liquid toward the bottom of the filter 120 so that the stripping liquid produces an upward impact force on the collector, thereby assisting the collector to float, making it easier for the scooping mechanism 140 to scoop the collector to the first discharging mechanism 150.

[0046] The feeding mechanism 180 is installed in the water tank box 110, and the filter 120 is relatively provided with a feeding end 122 and a discharging end 123. The pole piece fragments are fed at the feeding end 122, and the scooping mechanism 140 is located at the discharging end 123. The feeding mechanism 180 is used to drive the stripping liquid in the water tank box 110 to flow from the feeding end 122 to the discharging end 123, thereby driving the pole piece fragments to move from the feeding end 122 to the discharging end 123. In this process, there is sufficient reaction time between the pole piece fragments and the stripping liquid to ensure that the pole piece fragments can be decomposed into current collectors and battery materials, and the pole piece fragments will be impacted and flipped and tilted during the flow of the stripping liquid to improve the reaction effect between the pole piece fragments and the stripping liquid. In addition, the current collector obtained after the decomposition is completed can be driven by the stripping liquid to move to the discharging end 123, so that it can be scooped up by the scooping mechanism 140. For the convenience of description, the direction in which the stripping liquid flows from the feeding end 122 to the discharging end 123 is called the preset direction.

[0047] The feeding mechanism 190 is installed in the water tank box 110, and the leakage net 120 is provided with a feeding port 124, which is located at the feeding end 122 of the leakage net 120. The feeding mechanism 190 is used to feed the electrode fragments into the leakage net 120 through the feeding port 124 to realize the feeding function of the electrode fragments. In this embodiment, the feeding mechanism 190 is set 200mm below the liquid level of the stripping liquid in the water tank box 110, that is, during the feeding process of the feeding mechanism 190, the reaction between the electrode fragments and the stripping liquid has already started. In this process, since the density of the electrode fragments is greater than the density of the stripping liquid, the electrode fragments will always fall on the feeding mechanism 190, and move forward under the drive of the feeding mechanism 190 until entering the leakage net 120. In this way, the reaction time between the electrode fragments and the stripping liquid can be further extended to ensure the stripping effect of the electrode fragments.

[0048] Please refer to Figures 3 to 5 The scooping mechanism 140 includes a driving assembly 141, a rotating ring 142 and a scooping net 143. The driving assembly 141 is installed on the water tank 110 and connected to the rotating ring 142. The driving assembly 141 is used to drive the rotating ring 142 to rotate. The scooping net 143 is connected to the rotating ring 142. The scooping net 143 can move under the drive of the rotating ring 142. The scooping net 143 is used to extend into the leakage net 120 to scoop the current collector. The scooping net 143 is also used to send the current collector to the first discharging mechanism 150. When the driving component 141 drives the scooping net 143 to move to the first preset position through the rotating ring 142, the scooping net 143 extends into the stripping liquid, and then the scooping net 143 moves and scoops the collector under the action of the driving component 141. When the scooping net 143 moves to the second preset position, the scooping net 143 drives the collector to leave the stripping liquid, and then the scooping net 143 sends the collector to the first discharging mechanism 150 under the action of the driving component 141.

[0049] In this embodiment, the scooping net 143 is arranged perpendicular to the axial direction of the rotating ring 142 to improve the reliability of scooping the current collector, reduce the possibility of the current collector falling off the scooping net 143, and facilitate production and processing.

[0050] The scooping net 143 includes a fixed portion 1431 and a scooping portion 1432. One end of the fixed portion 1431 is fixedly connected to the rotating ring 142, and the other end is hinged to the scooping portion 1432. The rotating ring 142 can drive the scooping portion 1432 to move through the fixed portion 1431 during the rotation process. Specifically, the fixed portion 1431 and the scooping portion 1432 are connected by a one-way hinge, and the scooping portion 1432 can rotate at an angle less than or equal to 180 degrees relative to the fixed portion 1431. The scooping portion 1432 is used to rotate to a first extreme position relative to the fixed portion 1431 under the action of gravity and stripping liquid resistance, so as to facilitate scooping the current collector; the scooping portion 1432 is also used to rotate to a second extreme position relative to the fixed portion 1431 under the action of gravity, so as to push the current collector to the first discharging mechanism 150.

[0051] The scooping portion 1432 includes a straight section 1433 and an arc section 1434 that are connected to each other. The straight section 1433 is hinged to the fixed portion 1431, and the bending direction of the arc section 1434 is the same as the direction in which the scooping portion 1432 rotates to fold relative to the fixed portion 1431, and is the same as the rotation direction of the rotating ring 142, so as to improve the scooping efficiency and prevent the current collector from falling off after scooping. Specifically, the movement direction of the scooping net 143 in the stripping liquid is opposite to the preset direction, that is, the rotation direction of the rotating ring 142 at its lowermost tangent direction is opposite to the preset direction, so that the scooping net 143 can scoop out the current collector floating in the stripping liquid.

[0052] Preferably, there are multiple scooping nets 143, which are arranged in a circular array on the rotating ring 142 to further improve the scooping efficiency. In this embodiment, the number of scooping nets 143 is four, but it is not limited to this. In other embodiments, the number of scooping nets 143 can be three or five, and the number of scooping nets 143 is not specifically limited.

[0053] In this embodiment, there are two rotating rings 142, which are coaxial and opposite to each other. The scooping net 143 is connected between the two rotating rings 142. The two rotating rings 142 work together to enhance the fixing function of the scooping net 143, prevent the scooping net 143 from being displaced or deformed relative to the rotating rings 142, and ensure the reliability of the rotating rings 142 driving the scooping net 143 to move.

[0054] The driving assembly 141 includes a first driving motor 1411, a chain transmission member 1412, a first load-bearing wheel 1413, and a second load-bearing wheel 1414. The first driving motor 1411 is installed on the water tank box 110, and is connected to the first load-bearing wheel 1413 through the chain transmission member 1412. The first driving motor 1411 is used to drive the first load-bearing wheel 1413 to rotate through the chain transmission member 1412. The first load-bearing wheel 1413 and the second load-bearing wheel 1414 are both rotatably installed on the water tank box 110. The axial directions of the first load-bearing wheel 1413, the second load-bearing wheel 1414 and the rotating ring 142 are arranged in parallel. The rotating ring 142 is mounted on the first load-bearing wheel 1413 and the second load-bearing wheel 1414, and is simultaneously rotatably matched with the first load-bearing wheel 1413 and the second load-bearing wheel 1414. Specifically, in the process of the first driving motor 1411 driving the first load-bearing wheel 1413 to rotate, the first load-bearing wheel 1413 drives the rotating ring 142 to rotate, and the rotating ring 142 drives the second load-bearing wheel 1414 to rotate. During this process, the first load-bearing wheel 1413 and the second load-bearing wheel 1414 work together to realize the load-bearing function of the rotating ring 142 and ensure the stability of the rotation of the rotating ring 142.

[0055] In this embodiment, the number of the first load-bearing wheels 1413 and the number of the second load-bearing wheels 1414 are both two. The two first load-bearing wheels 1413 are relatively arranged on both sides of the water tank box 110, and the two second load-bearing wheels 1414 are relatively arranged on both sides of the water tank box 110. Each first load-bearing wheel 1413 and one second load-bearing wheel 1414 are rotated in cooperation with a rotating ring 142. The first driving motor 1411 can simultaneously drive the two first load-bearing wheels 1413 to rotate through the chain transmission member 1412, so that the two rotating rings 142 rotate synchronously, thereby ensuring the reliability of the movement of the scooping net 143.

[0056] It should be noted that the first discharging mechanism 150 is arranged through the rotating ring 142, and the first discharging mechanism 150 is also arranged in the two rotating rings 142. When the rotating ring 142 drives the scooping net 143 to move to the top of the first discharging mechanism 150, the collector located in the scooping net 143 falls onto the first discharging mechanism 150 under the action of gravity, thereby realizing the discharging function of the collector.

[0057] The first discharging mechanism 150 includes a shell 151 and a belt conveyor assembly 152. A clearance opening 153 is provided at the top of the shell 151, and the clearance opening 153 is located between the two rotating rings 142 and corresponds to the position of the scooping net 143. The belt conveyor assembly 152 is arranged in the shell 151 and corresponds to the position of the clearance opening 153. The belt conveyor assembly 152 is used to receive the current collector that falls from the scooping net 143 and passes through the clearance opening 153, and delivers the current collector to the current collector collection box 154 located below the end of the belt conveyor assembly 152. The current collector collection box 154 is used to collect and store the current collector.

[0058] During the process of scooping the current collector, the driving assembly 141 is started to drive the scooping net 143 to move through the rotating ring 142; before the scooping net 143 enters the stripping liquid, the scooping portion 1432 continuously rotates relative to the fixed portion 1431 under the action of gravity and always remains in the vertical direction; when the scooping net 143 moves to the first preset position, the scooping portion 1432 contacts the stripping liquid; then the scooping portion 1432 rotates to expand relative to the fixed portion 1431 under the action of the resistance of the stripping liquid and the action of gravity. The first limit position is set, at which time the straight section 1433 of the scooping portion 1432 and the fixing portion 1431 are located on the same plane, and the scooping portion 1432 is fully unfolded; in the process of the scooping net 143 moving from the first preset position to the second preset position, the scooping portion 1432 remains in a fully unfolded state and scoops out the current collector floating in the stripping liquid; when the scooping net 143 moves to the second preset position, the scooping net 143 drives the current collector to leave the stripping liquid; then the scooping net 143 continues to drive the current collector to move, During this process, the scooping net 143 is located obliquely above the clearance opening 153, and part of the current collector in the scooping net 143 will slide downward under the action of gravity and pass through the clearance opening 153 to fall onto the belt conveyor assembly 152; when the scooping net 143 moves to the top of the rotating ring 142, the scooping net 143 is located directly above the clearance opening 153, and the scooping portion 1432 will fall under the action of gravity and quickly rotate to the second extreme position folded relative to the fixing portion 1431, so as to collect part of the current collector in the scooping net 143. The scooping portion 1432 is pushed down so that it passes through the clearance port 153 and falls onto the belt conveyor assembly 152. In addition, when the scooping portion 1432 rotates rapidly to the second extreme position, it collides with the fixing portion 1431, and the residual current collector attached to the scooping net 143 is shaken off by vibration, so that it passes through the clearance port 153 and falls onto the belt conveyor assembly 152, completing the scooping operation of the current collector; this cycle is repeated to achieve continuous scooping and discharging of the current collector, thereby realizing the continuous stripping function of the electrode stripping device 100.

[0059] Please refer to Figures 6 to 8 The disturbance mechanism 130 includes a second drive motor 131 and a propeller 132. The second drive motor 131 is installed on the water tank box 110 and is connected to the propeller 132. The second drive motor 131 drives the propeller 132 to rotate. The propeller 132 is used to drive the stripping liquid to flow into the filter 120 to achieve the impact disturbance function on the pole piece fragments, accelerate the reaction between the pole piece fragments and the stripping liquid, and improve the stripping efficiency. Specifically, the number of propellers 132 is multiple, and the multiple propellers 132 are divided into two groups. The two groups of propellers 132 are relatively arranged on both sides of the filter 120. The multiple propellers 132 work together to further improve the stripping efficiency.

[0060] In this embodiment, the axial direction of the propeller 132 is set perpendicular to the side wall of the water tank box 110, and at the same time perpendicular to the side wall of the filter screen 120, that is, perpendicular to the preset direction, so as to drive the stripping liquid to flow into the filter screen 120 from the vertical direction of the preset direction, thereby achieving maximum disturbance and further improving the stripping efficiency.

[0061] The auxiliary floating mechanism 170 includes a first water pump 171 and a water injection pipe 172. One end of the first water pump 171 is connected to the water tank box 110, and the other end is connected to the water injection pipe 172. The first water pump 171 is used to extract the stripping liquid in the water tank box 110 and inject it through the water injection pipe 172. Specifically, the free end of the water injection pipe 172 is arranged at the outer bottom of the leakage net 120, and the first water pump 171 is used to inject the stripping liquid into the leakage net 120 through the water injection pipe 172, so that the stripping liquid produces an upward impact force on the current collector, and the auxiliary current collector floats up, which is convenient for the scooping mechanism 140 to scoop the current collector to the first discharging mechanism 150. In this embodiment, the number of water injection pipes 172 is multiple, and the multiple water injection pipes 172 are divided into two groups. The two groups of water injection pipes 172 are relatively arranged on both sides of the leakage net 120, and the multiple water injection pipes 172 work together to further improve the auxiliary floating effect.

[0062] In this embodiment, the free end of the water injection pipe 172 is arranged perpendicular to the side wall of the water tank box 110, and also perpendicular to the side wall of the filter screen 120, that is, perpendicular to a preset direction, so as to inject stripping liquid into the filter screen 120 from a vertical direction of the preset direction to enhance the auxiliary floating effect.

[0063] The feeding mechanism 180 includes a second water pump 181, a water outlet pipe 182 and a water inlet pipe 183. One end of the second water pump 181 is connected to the water outlet pipe 182, and the other end is connected to the water inlet pipe 183. The second water pump 181 is used to extract the stripping liquid through the water outlet pipe 182 and inject it through the water inlet pipe 183. Specifically, the water inlet pipe 183 is arranged at the discharge end 123, and the water outlet pipe 182 is arranged at the feed end 122. The second water pump 181 is used to extract the stripping liquid at the discharge end 123 to the feed end 122, so that the stripping liquid in the water tank box 110 flows from the feed end 122 to the discharge end 123 (flows in a preset direction), and drives the current collector to move in a direction close to the scooping mechanism 140.

[0064] In this embodiment, the number of the water outlet pipes 182 and the water inlet pipes 183 are both two, and the two water outlet pipes 182 are relatively arranged on both sides of the net 120, and the two water inlet pipes 183 are relatively arranged on both sides of the net 120, so as to further improve the feeding effect of the stripping liquid. However, it is not limited to this. In other embodiments, the number of the water outlet pipes 182 and the water inlet pipes 183 can be four or eight or even more, and the multiple water outlet pipes 182 are divided into two groups, and the two groups of water outlet pipes 182 are relatively arranged on both sides of the net 120, and the multiple water inlet pipes 183 are divided into two groups, and the two groups of water inlet pipes 183 are relatively arranged on both sides of the net 120. The number of water inlet pipes 183 and water outlet pipes 182 is not specifically limited.

[0065] In this embodiment, the free end of the water outlet pipe 182 is inclined to the side wall of the water tank box 110, and the inclination angle is 45 degrees, that is, the extension direction of the free end of the water outlet pipe 182 is set at a 45-degree angle to the preset direction, and the water outlet pipe 182 can output the stripping liquid obliquely forward under the action of the second water pump 181; the free end of the water inlet pipe 183 is inclined to the side wall of the water tank box 110, and the inclination angle is 45 degrees, the free end of the water inlet pipe 183 is symmetrically arranged with the free end of the water outlet pipe 182, that is, the extension direction of the free end of the water inlet pipe 183 is set at an angle of 135 degrees to the preset direction, and the water inlet pipe 183 can extract the stripping liquid along the oblique front under the action of the second water pump 181; the water inlet pipe 183 and the water outlet pipe 182 work together to ensure the stability of the stripping liquid flowing along the preset direction.

[0066] In this embodiment, the feeding mechanism 190 and the second discharging mechanism 160 are both belt conveying mechanisms to respectively realize the feeding function of the electrode fragments and the discharging function of the battery materials. Specifically, a battery material collection box 161 is arranged below one end of the second discharging mechanism 160 extending out of the water tank box 110, and the second discharging mechanism 160 can deliver the battery materials to the battery material collection box 161, and the battery material collection box 161 is used to collect and store the battery materials.

[0067] The pole piece stripping device 100 provided in the embodiment of the utility model comprises a screen 120 installed in a water tank 110, the water tank 110 is used to contain a stripping liquid, the screen 120 is used to feed pole piece fragments, a disturbance mechanism 130 is installed in the water tank 110 and is arranged outside the screen 120, the disturbance mechanism 130 is used to disturb the stripping liquid so that the stripping liquid passes through the screen 120 to impact the pole piece fragments, and accelerates the separation of the pole piece fragments into a current collector and a battery material, and a scooping mechanism 140 is installed in the water tank 110, the position of the scooping mechanism 140 corresponds to the position of the first discharging mechanism 150, the scooping mechanism 140 is used to scoop the floating collector in the collapsing net 120 to the first discharging mechanism 150, the first discharging mechanism 150 is used to drive the collector to be discharged, a part of the second discharging mechanism 160 is arranged below the collapsing net 120, and the other part extends out of the water tank box 110, the second discharging mechanism 160 is used to send the battery material that settles under the action of gravity and falls out of the collapsing net 120 out of the water tank box 110. Compared with the prior art, the pole piece stripping device 100 provided by the utility model adopts a disturbance mechanism 130 arranged on the outside of the leakage net 120, a first discharging mechanism 150 corresponding to the position of the scooping mechanism 140, and a second discharging mechanism 160 partially arranged under the leakage net 120. Therefore, it can realize the automatic stripping and decomposition of pole piece fragments, avoid collision and cutting of pole piece fragments, avoid battery material loss, and have a high recovery rate. It can also realize the complete separation and separate discharging of the current collector and battery material, and has a high separation efficiency.

[0068] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pole piece peeling device, characterized in that: The invention comprises a water tank box (110), a leakage net (120), a disturbance mechanism (130), a scooping mechanism (140), a first discharging mechanism (150) and a second discharging mechanism (160), wherein the leakage net (120) is installed in the water tank box (110), the water tank box (110) is used to contain a stripping liquid, the leakage net (120) is used to feed the electrode fragments, the disturbance mechanism (130) is installed in the water tank box (110) and is arranged outside the leakage net (120), the disturbance mechanism (130) is used to disturb the stripping liquid so that the stripping liquid passes through the leakage net (120) to impact the electrode fragments, thereby accelerating the separation of the electrode fragments into a current collector and a battery material, and A scooping mechanism (140) is installed above the water tank (110), and the position of the scooping mechanism (140) corresponds to the position of the first discharge mechanism (150). The scooping mechanism (140) is used to scoop the current collector floating in the collapsible net (120) to the first discharge mechanism (150). The first discharge mechanism (150) is used to drive the current collector to be discharged. A part of the second discharge mechanism (160) is arranged below the collapsible net (120), and another part extends out of the water tank (110). The second discharge mechanism (160) is used to send the battery material that settles under the action of gravity and falls out of the collapsible net (120) out of the water tank (110).

2. The pole piece peeling device according to claim 1, characterized in that: The scooping mechanism (140) comprises a driving assembly (141), a rotating ring (142) and a scooping net (143); the driving assembly (141) is mounted on the water tank (110) and connected to the rotating ring (142); the scooping net (143) is connected to the rotating ring (142); the scooping net (143) is used to extend into the leakage net (120) to scoop the current collector; the scooping net (143) is also used to deliver the current collector to the first discharging mechanism (150).

3. The pole piece peeling device according to claim 2, characterized in that: The scooping net (143) comprises a fixed portion (1431) and a scooping portion (1432); one end of the fixed portion (1431) is fixedly connected to the rotating ring (142), and the other end is hinged to the scooping portion (1432); the scooping portion (1432) is used to rotate to a first extreme position unfolded relative to the fixed portion (1431) under the action of gravity and stripping liquid resistance, so as to facilitate scooping the current collector; the scooping portion (1432) is also used to rotate to a second extreme position folded relative to the fixed portion (1431) under the action of gravity, so as to push the current collector to the first discharge mechanism (150).

4. The pole piece peeling device according to claim 3, characterized in that: The scooping portion (1432) comprises a straight section (1433) and an arc section (1434) connected to each other, the straight section (1433) is hinged to the fixed portion (1431), and the bending direction of the arc section (1434) is the same as the direction in which the scooping portion (1432) rotates to fold relative to the fixed portion (1431), and is also the same as the rotation direction of the rotating ring (142).

5. The pole piece peeling device according to claim 2, characterized in that: The number of the scooping nets (143) is multiple, and the multiple scooping nets (143) are arranged on the rotating ring (142) in a circular array; and / or the number of the rotating rings (142) is two, the two rotating rings (142) are coaxial and arranged opposite to each other, and the scooping net (143) is connected between the two rotating rings (142).

6. The pole piece peeling device according to claim 2, characterized in that: The driving assembly (141) comprises a first driving motor (1411), a chain transmission member (1412), a first load-bearing wheel (1413) and a second load-bearing wheel (1414); the first driving motor (1411) is mounted on the water tank box (110) and connected to the first load-bearing wheel (1413) through the chain transmission member (1412); the first load-bearing wheel (1413) and the second load-bearing wheel (1414) are both rotatably mounted on the water tank box (110); the first load-bearing wheel (1413), the second load-bearing wheel (1414) and the axial direction of the rotating ring (142) are arranged parallel; the rotating ring (142) is mounted on the first load-bearing wheel (1413) and the second load-bearing wheel (1414), and simultaneously rotates with the first load-bearing wheel (1413) and the second load-bearing wheel (1414).

7. The pole piece peeling device according to claim 2, characterized in that: The first discharging mechanism (150) is arranged through the rotating ring (142), and the first discharging mechanism (150) comprises an outer shell (151) and a belt conveying assembly (152). The outer shell (151) is provided with a clearance opening (153). The belt conveying assembly (152) is arranged in the outer shell (151) and corresponds to the position of the clearance opening (153). The belt conveying assembly (152) is used to receive the current collector that falls from the scooping net (143) and passes through the clearance opening (153), and delivers the current collector to a current collector collection box (154) located below the end of the belt conveying assembly (152).

8. The pole piece peeling device according to claim 1, characterized in that: The disturbance mechanism (130) comprises a second drive motor (131) and a propeller (132); the second drive motor (131) is installed on the water tank (110) and connected to the propeller (132); the propeller (132) is used to drive the stripping liquid to flow into the filter (120).

9. The pole piece peeling device according to claim 1, characterized in that: The electrode stripping device further comprises an auxiliary floating mechanism (170), wherein the auxiliary floating mechanism (170) comprises a first water pump (171) and a water injection pipe (172), wherein one end of the first water pump (171) is connected to the water tank (110), and the other end is connected to the water injection pipe (172), wherein the free end of the water injection pipe (172) is arranged at the outer bottom of the leakage net (120), and the first water pump (171) is used to inject a stripping liquid into the leakage net (120) through the water injection pipe (172) to assist the current collector to float.

10. The pole piece peeling device according to claim 1, characterized in that: The electrode stripping device further comprises a feeding mechanism (180), the feeding mechanism (180) comprising a second water pump (181), a water outlet pipe (182) and a water inlet pipe (183), one end of the second water pump (181) is connected to the water outlet pipe (182), and the other end is connected to the water inlet pipe (183), the leakage net (120) is provided with a feeding end (122) and a discharging end (123) opposite to each other, and the scooping mechanism (140) is located at the discharging end (12 3), the water inlet pipe (183) is arranged at the discharge end (123), the water outlet pipe (182) is arranged at the feed end (122), and the second water pump (181) is used to pump the stripping liquid from the discharge end (123) to the feed end (122), so that the stripping liquid in the water tank box (110) flows from the feed end (122) toward the discharge end (123), and drives the collector to move in a direction close to the scooping mechanism (140).

11. The pole piece peeling device according to claim 1, characterized in that: The electrode stripping device further comprises a feeding mechanism (190), wherein the feeding mechanism (190) is installed in the water tank box (110), and the leakage net (120) is provided with a feeding port (124). The feeding mechanism (190) is used to feed the electrode fragments into the leakage net (120) through the feeding port (124).

12. A lithium battery recycling device, characterized in that: It comprises a pole piece stripping device as described in any one of claims 1 to 11.

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