A separation device for the environmental protection recycling of waste batteries

Abstract

The present invention relates to the technical field of solid waste treatment, and particularly relates to a separation device for environmental protection recycling of waste batteries, including a fixed frame, a collection box, a crushing roller, etc.; a collection box is installed under the fixed frame; two symmetrically arranged crushing rollers are rotatably connected to the upper side of the fixed frame. By using a resistance wire to short-circuit the lithium battery in the storage cavity, the present invention realizes the rapid discharge of the lithium battery, eliminates the process of soaking the lithium battery in salt water, shortens the time for recycling the lithium battery. Subsequently, during the process of pushing the lithium battery out of the discharge cavity, the heat shrinkable film is separated by the clamping plate and the first cutter, avoiding the subsequent separate separation treatment of the heat shrinkable film, improving the separation efficiency, reducing the recycling cost, and reducing the subsequent cleaning work of the heat shrinkable film. Moreover, during the process of crushing the lithium battery by the crushing roller, the lithium battery can be synchronously added to the storage cavity, so as to realize the synchronous progress of the discharge and crushing of the lithium battery, and improve the recycling efficiency of the lithium battery.

Description

Technical Field

[0001] The present invention relates to the technical field of solid waste treatment, and particularly relates to a separation device for environmentally friendly recycling of waste batteries. Background Art

[0002] During the recycling process of lithium batteries, it is usually necessary to discharge the collected lithium batteries. The commonly used discharge method is to soak the lithium batteries in brine, and use the brine as a conductive medium for discharging. After the lithium batteries are discharged, they are then transported to a crusher for crushing. During this process, since the discharge rate of the lithium batteries soaked in the brine environment is relatively low, the time consumed in the discharge link of the lithium battery recycling process is relatively long. Summary of the Invention

[0003] In order to overcome the disadvantages that the existing lithium batteries are discharged by soaking in brine, the discharge rate of the lithium batteries is relatively low, and the time required for the discharge link is relatively long, the present invention provides a separation device for environmentally friendly recycling of waste batteries.

[0004] Technical Solution: A separation device for environmentally friendly recycling of waste batteries includes a fixed frame, a collection box, and crushing rollers; a collection box is installed on the lower side of the fixed frame; two symmetrically arranged crushing rollers are rotatably connected to the upper side of the fixed frame; an electric drive is provided on each crushing roller; it further includes a front side limit plate, a rear side limit plate, a fixing plate, a discharge assembly, a discharge component, and a separation system; two support rods are fixedly connected to the upper side of the fixed frame; a front side limit plate and a rear side limit plate are respectively installed on the two support rods. The front side limit plate and the rear side limit plate are both trapezoidal in shape, and there is a gap between the front side limit plate and the rear side limit plate; conductive plates are provided on the opposite sides of the front side limit plate and the rear side limit plate; a storage cavity is formed between the front side limit plate and the rear side limit plate; the storage cavity is used to place lithium batteries; a fixing plate is fixedly connected to the lower sides of the front side limit plate and the rear side limit plate; a bottom plate is connected to the lower side of each fixing plate; a discharge component is installed between the two fixing plates; the lithium batteries are pushed out of the fixing plates through the discharge component; a discharge assembly for discharging the lithium batteries is connected to the fixed frame; the discharge assembly is communicated with the conductive plates; a separation system for separating the heat shrinkable film on the surface of the lithium batteries is provided on the fixing plates.

[0005] Further explanation: The discharging assembly includes a top block, a top plate, a first driving member, a retaining rod, a carriage, a first baffle, a second baffle, and a second driving member; a plurality of first driving members are installed on each fixed plate; a top block is fixedly connected to the telescopic end of each first driving member; a top plate is slidably connected to each fixed plate through a spring; a carriage is installed in each fixed plate; a plurality of first baffles are connected to each carriage; a second baffle is installed on each carriage; each top block is respectively located between two adjacent first baffles and between the first baffle and the second baffle; a plurality of second driving members are fixedly connected to each second baffle; a retaining rod is fixedly connected to the telescopic end of each second driving member; a discharging cavity is jointly formed among all the first baffles, second baffles, fixed plates, bottom plates, top plates, and retaining rods; a locking device is installed on each fixed plate; the locking device is slidably connected to the top plate.

[0006] Further explanation: The discharging component includes a discharger and a resistance wire; the discharger is fixedly connected to the fixed frame; positive and negative terminals are respectively arranged on the discharger; the positive terminal of the discharger is communicated with the conductive plate of the front side limiting plate, and the negative terminal of the discharger is communicated with the conductive plate of the rear side limiting plate; a voltage detector is arranged in the discharger, and a current protector is arranged inside the discharger; a resistance wire is communicated with the discharger, and both ends of the resistance wire are respectively communicated with the positive terminal and the negative terminal of the discharger.

[0007] Further explanation: The support rod is set as an electric push rod.

[0008] Further explanation: The carriage is set to slide left and right on the fixed plate; a through groove is provided on each carriage; the first baffle is set to slide in the through groove of the corresponding carriage; a plurality of adjustment grooves are provided on each fixed plate; the first driving member is set to slide in the corresponding adjustment groove.

[0009] Further explanation: The separation system includes a first cutter, a clamping plate, and a second cutter; a first cutter is jointly clamped on two top blocks at the same height, and the top block slides back and forth on the first cutter; the first cutter is a hot melt cutter and is communicated with an external power supply device; a heat insulation plate is arranged on the lower side of each first cutter; a clamping plate is connected to each first cutter through a spring; a sliding groove is provided on each clamping plate; a guiding block is arranged on each first baffle; each guiding block is located in the adjacent sliding groove; a plurality of second cutters are slidably connected to each carriage, and the blade spacing between two second cutters at the same height is equal to the width of the storage cavity.

[0010] Further explanation, the separation system further includes a collection bin and a motor; a collection bin for storing heat shrinkable film is fixedly connected to the lower sides of the two fixing plates together; a telescopic part is arranged in the middle of the collection bin; a discharge port is opened in front of the collection bin; the discharge port is communicated with an external air extraction device; each bottom plate is arranged to rotate on the adjacent fixing plate; a motor is fixedly connected to each fixing plate; the output shaft of each motor is fixedly connected to the adjacent bottom plate.

[0011] Further explanation, a heating wire is arranged at the bottom of the collection bin, and the two ends of the heating wire are respectively connected to the positive and negative terminals of the discharger.

[0012] Further explanation, it further includes water pipes; several water pipes are fixedly connected to the fixing frame; each water pipe is located above the adjacent crushing roller; several drain holes are opened on each water pipe, and the drain holes face between the two crushing rollers; the several water pipes are communicated with an external water supply device.

[0013] Further explanation, a cavity is opened on the side wall of the collection box, and the resistance wire is located in the cavity of the collection box.

[0014] The beneficial effects of the present invention are as follows:

[0015] Compared with the conventional lithium battery recycling method, by using the resistance wire to short-circuit the lithium batteries in the storage cavity, the rapid discharge of the lithium batteries is realized, eliminating the process of soaking the lithium batteries in salt water and shortening the time for recycling the lithium batteries;

[0016] During the process of crushing the lithium batteries by the crushing rollers, lithium batteries can be synchronously added to the storage cavity, so as to realize the synchronous discharge and crushing of the lithium batteries and improve the recycling efficiency of the lithium batteries;

[0017] By providing a gap between the front limiting plate and the rear limiting plate, the contact area between the lithium batteries and the outside air is increased, facilitating the lithium batteries to dissipate heat to the outside and avoiding the spontaneous combustion of the lithium batteries due to excessive temperature;

[0018] During the process of pushing the lithium batteries out of the discharge cavity, the heat shrinkable film is separated by the clamping plate and the first cutting knife, avoiding the subsequent separate separation treatment of the heat shrinkable film, improving the separation efficiency, reducing the recycling cost, and reducing the subsequent cleaning work of the heat shrinkable film;

[0019] The lithium battery debris is wetted by water mist, avoiding the scattering of the lithium battery debris everywhere, thus avoiding air quality pollution and improving the working environment of the staff. Moreover, the surfaces of the crushing rollers and the lithium batteries are cooled by water mist, thus avoiding the combustion of flammable organic substances in the electrolyte. Description of the Drawings

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the separation device for environmental protection recycling of waste batteries of the present invention;

[0021] Figure 2 Combined sectional view of the fixing frame and the collection box of the present invention;

[0022] Figure 3 Combined front view of the front limiting plate, rear limiting plate, fixing plate and discharging assembly of the present invention;

[0023] Figure 4 Combined three-dimensional structure schematic diagram of the fixing plate, sliding frame, first baffle and second baffle of the present invention;

[0024] Figure 5 Combined three-dimensional structure schematic diagram of the shift lever, second baffle and second driving member of the present invention;

[0025] Figure 6 Three-dimensional structure schematic diagram of the separation system of the present invention;

[0026] Figure 7 For the present invention Figure 6 Enlarged view of part A;

[0027] Figure 8 Combined three-dimensional structure schematic diagram of the first cutting knife, clamping plate and second cutting knife of the present invention;

[0028] Figure 9 Combined three-dimensional structure schematic diagram of the first cutting knife and the clamping plate of the present invention.

[0029] In the above drawings: 1 - fixing frame, 2 - collection box, 3 - crushing roller, 4 - support rod, 51 - front limiting plate, 52 - rear limiting plate, 5001 - storage cavity, 5002 - gap, 6 - lithium battery, 7 - fixing plate, 7001 - bottom plate, 7002 - adjustment groove, 8 - top block, 9 - top plate, 9001 - discharge cavity, 9002 - locking device, 10 - discharger, 201 - first driving member, 202 - shift lever, 203 - resistance wire, 204 - sliding frame, 205 - first baffle, 20501 - guiding block, 206 - second baffle, 207 - second driving member, 301 - first cutting knife, 30101 - heat insulation plate, 302 - clamping plate, 30201 - sliding groove, 303 - second cutting knife, 304 - collection bin, 30401 - telescopic part, 30402 - discharge port, 305 - motor, 401 - water pipe. Detailed implementation manners

[0030] The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which the presently preferred embodiments of the invention are shown. However, the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness and to fully convey the scope of the invention to those skilled in the art.

[0031] Example 1

[0032] As Figures 1 - 9 shown, a separation device for environmentally friendly recycling of waste batteries includes a fixing frame 1, a collection box 2, and a crushing roller 3. A collection box 2 is installed on the lower side of the fixing frame 1. Two symmetrically arranged crushing rollers 3 are rotatably connected to the upper side of the fixing frame 1. An electric driver is provided on each crushing roller 3, and the electric driver is an asynchronous motor.

[0033] It further includes a support rod 4, a front side limiting plate 51, a rear side limiting plate 52, a fixing plate 7, a discharging component, a discharging component, and a separation system. Two symmetrically arranged support rods 4 are fixedly connected to the upper side of the fixing frame 1. A front side limiting plate 51 and a rear side limiting plate 52 are respectively installed on the two support rods 4. The front side limiting plate 51 and the rear side limiting plate 52 are both trapezoidal in reverse. During the continuous discharging process of the lithium battery 6, in order to increase the contact area between the lithium battery 6 and the outside air and prevent the lithium battery 6 from spontaneous combustion due to excessive temperature, a gap 5002 is provided between the front side limiting plate 51 and the rear side limiting plate 52. Conductive plates are provided on the facing sides of the front side limiting plate 51 and the rear side limiting plate 52. A storage cavity 5001 is formed between the front side limiting plate 51 and the rear side limiting plate 52. The storage cavity 5001 is used to place the lithium battery 6. A fixing plate 7 is fixedly connected to the lower sides of both the front side limiting plate 51 and the rear side limiting plate 52. A bottom plate 7001 is connected to the lower side of each fixing plate 7. A discharging component is installed between the two fixing plates 7. The lithium battery 6 is pushed out of the fixing plate 7 through the discharging component. A discharging component for discharging the lithium battery 6 is connected to the fixing frame 1. The discharging component is communicated with the conductive plate. A separation system is provided on the fixing plate 7.

[0034] The discharge assembly includes a top block 8, a top plate 9, a first driving member 201, a stop lever 202, a carriage 204, a first baffle 205, a second baffle 206, and a second driving member 207; four first driving members 201 are installed on the right side of each fixing plate 7, and the first driving member 201 is an electric push rod; a top block 8 is fixedly connected to the telescopic end of each first driving member 201; a top plate 9 is slidably connected to the left side of each fixing plate 7 through a spring, and the spring is sleeved on a sliding rod, and the sliding rod is fixedly connected to the top plate 9; a carriage 204 is installed in each fixing plate 7; four first baffles 205 distributed up and down are connected to each carriage 204; a second baffle 206 is installed on each carriage 204; each top block 8 is respectively located between two adjacent first baffles 205 and between the first baffle 205 and the second baffle 206; two second driving members 207 are fixedly connected to each second baffle 206, and the second driving member 207 is an electric push rod; a stop lever 202 is fixedly connected to the telescopic end of each second driving member 207; a discharge chamber 9001 is jointly formed among all the first baffles 205, second baffles 206, fixing plates 7, bottom plate 7001, top plates 9, and stop levers 202; a lock 9002 is installed on each fixing plate 7; the lock 9002 is slidably connected to the sliding rod of the top plate 9; the sliding rod has magnetism, the lock 9002 is an electromagnetic damping lock, and an electromagnet is arranged inside. It utilizes the electromagnetic damping effect. When the internal electromagnet is energized, a magnetic field is generated to hinder the sliding of the sliding rod, thereby locking the top plate 9, and when the electromagnet is de-energized, the locking effect on the top plate 9 is released.

[0035] Further, the discharge component includes a discharger 10 and a resistance wire 203; the discharger 10 is fixedly connected to the fixing frame 1; positive and negative terminals are respectively arranged on the discharger 10; the positive terminal of the discharger 10 is communicated with the conductive plate of the front side limiting plate 51, and the negative terminal of the discharger 10 is communicated with the conductive plate of the rear side limiting plate 52; a voltage detector is arranged inside the discharger 10, and a current protector is arranged inside the discharger 10; a resistance wire 203 is communicated with the discharger 10, and both ends of the resistance wire 203 are respectively communicated with the positive terminal and the negative terminal of the discharger 10.

[0036] Furthermore, to adapt to lithium batteries 6 of different lengths, the support rod 4 is set as an electric push rod, and the distance between the front side limiting plate 51 and the rear side limiting plate 52 is adjusted by the support rod 4 set as an electric push rod.

[0037] Furthermore, to adapt to lithium batteries 6 of different diameters, the carriage 204 is arranged to slide left and right on the fixed plate 7; a through groove is provided on each carriage 204; the first baffle 205 is arranged to slide in the through groove of the corresponding carriage 204, and the distance between two adjacent first baffles 205 is adjusted manually; two adjustment grooves 7002 are provided on each fixed plate 7; the first driving member 201 is arranged to slide in the corresponding adjustment groove 7002, and the distance between two adjacent first driving members 201 is adjusted manually.

[0038] The separation system includes a first cutting knife 301, a clamping plate 302 and a second cutting knife 303; a first cutting knife 301 is jointly clamped on two top blocks 8 at the same height, and the top block 8 can slide back and forth on the first cutting knife 301; the first cutting knife 301 is a hot melt knife, and the first cutting knife 301 is connected to an external power supply device; a heat insulation plate 30101 is arranged on the lower side of each first cutting knife 301; a clamping plate 302 is connected to each first cutting knife 301 through a spring; a chute 30201 is provided on each clamping plate 302; a guiding block 20501 is arranged on the rear side of each first baffle 205; each guiding block 20501 is located in the adjacent chute 30201; four second cutting knives 303 are slidably connected to each carriage 204, and the blade spacing between two second cutting knives 303 at the same height is equal to the width of the storage cavity 5001.

[0039] The separation system further includes a collection bin 304 and a motor 305; a collection bin 304 is jointly fixed to the lower sides of the two fixed plates 7; a telescopic part 30401 is arranged in the middle of the collection bin 304; a discharge port 30402 is provided in front of the collection bin 304; the discharge port 30402 is connected to an external air extraction device; each bottom plate 7001 is arranged to rotate on the adjacent fixed plate 7; a motor 305 is fixed to each fixed plate 7; the output shaft of each motor 305 is fixed to the adjacent bottom plate 7001.

[0040] Furthermore, to increase the number of heat shrinkable films collected by the collection bin 304, a heating wire is provided at the bottom of the collection bin 304, and the two ends of the heating wire are respectively connected to the positive and negative terminals of the discharger 10.

[0041] The lithium battery 6 is cylindrical, and a layer of heat shrinkable film is wrapped on the surface of the lithium battery 6. The following is a detailed description of the discharging and crushing process of the waste lithium battery 6:

[0042] First, place the lithium battery 6 horizontally, with the positive electrode of the lithium battery 6 facing forward and the negative electrode facing backward. Then, place the lithium battery 6 in sequence in the storage cavity 5001 between the front limiting plate 51 and the rear limiting plate 52. At this time, the positive electrode of the lithium battery 6 is in contact with the conductive plate of the front limiting plate 51, and the negative electrode of the lithium battery 6 is in contact with the conductive plate of the rear limiting plate 52. And by controlling the second driving member 207 to drive the shift lever 202 to move leftward, so that the shift lever 202 protrudes from the second baffle 206, thereby blocking the lithium battery 6 at the bottom of the storage cavity 5001 from falling into the discharge cavity 9001. Then, control the discharger 10 to turn on, so that the positive electrode and the negative electrode of the lithium battery 6 are respectively connected to both ends of the resistance wire 203, making the lithium battery 6 in a short-circuit state, thereby converting the residual electric energy in the lithium battery 6 into heat energy on the resistance wire 203, achieving the effect of quickly discharging the lithium battery 6. By setting a voltage detector in the discharger 10 to detect the voltage value between the front limiting plate 51 and the rear limiting plate 52, when the voltage value drops to the set threshold, it can be judged that the discharge of the lithium battery 6 is completed. Then, control the second driving member 207 to drive the shift lever 202 to move rightward, so that the shift lever 202 retracts to the bottom of the second baffle 206, thereby enabling the lithium battery 6 at the bottom of the storage cavity 5001 to fall into the discharge cavity 9001 in sequence, and through the limiting of the top plate 9, the first baffle 205 and the second baffle 206, from the perspective of front to back, as Figure 3As shown, stack the lithium batteries 6 in the discharge chamber 9001 to the vertical state. The lithium battery 6 at the lowermost side is in contact with the bottom plate 7001. Moreover, the central positions of the top block 8 and the first driving member 201 are aligned with the center of the lithium battery 6. Then, control the first driving member 201 to drive the top block 8 to move leftward, and at the same time, control the lock 9002 to be in the unlocked state, so that the top plate 9 can slide in the lock 9002. Thus, the top block 8 pushes the lithium battery 6 and the top plate 9 to move leftward, compressing the spring between the top plate 9 and the fixing plate 7 until the lowermost lithium battery 6 separates from the bottom plate 7001. Under the action of the self-gravity of the lithium battery 6, the lithium batteries 6 in the discharge chamber 9001 fall downward and then fall between the two crushing rollers 3. Subsequently, control the asynchronous motor on the crushing rollers 3 to start. Taking the front-to-back view as a reference, make the left crushing roller 3 rotate clockwise and the right crushing roller 3 rotate counterclockwise. The lithium battery 6 is broken into pieces by the reverse rotation of the two crushing rollers 3. Subsequently, the lithium battery 6 pieces fall into the collection box 2. Moreover, during the process of the first driving member 201 driving the top block 8 to move leftward, synchronously control the second driving member 207 to drive the shift lever 202 to move leftward, so that the shift lever 202 protrudes from the second baffle 206 to block the lithium batteries 6 in the storage chamber 5001 from falling into the discharge chamber 9001. When the lithium batteries 6 in the discharge chamber 9001 fall, control the first driving member 201 to drive the top block 8 to return to the initial position, and at the same time, the top plate 9 moves back to the initial position under the action of the spring. Subsequently, control the second driving member 207 to drive the shift lever 202 to retract, so that the lithium batteries 6 at the bottom of the storage chamber 5001 fall into the discharge chamber 9001. In this way, continuous crushing of the lithium batteries 6 can be realized. Compared with the conventional lithium battery 6 recycling method, by using the resistance wire 203, the lithium batteries 6 in the storage chamber 5001 are short-circuited, thereby realizing rapid discharge of the lithium batteries 6, eliminating the process of soaking the lithium batteries 6 in salt water, and shortening the time for recycling the lithium batteries 6. At the same time, by arranging a current protector inside the discharger 10, when the discharge current of the lithium battery 6 exceeds the threshold of the current protector, the current protector fuses, thereby blocking the continuous discharge of the lithium battery 6 and avoiding the risk of thermal runaway caused by large-current discharge of the lithium battery 6. On this basis, during the process of the crushing rollers 3 crushing the lithium battery 6, lithium batteries 6 can be synchronously added to the storage chamber 5001, thereby realizing the synchronous progress of the discharge and crushing of the lithium batteries 6 and improving the recycling efficiency of the lithium batteries 6.

[0043] During the continuous discharge of the lithium battery 6, heat is easily generated inside the lithium battery 6. Moreover, since the lithium batteries 6 in the storage cavity 5001 are stacked on top of each other, it is difficult for the heat of the lithium battery 6 in the middle to dissipate, which easily causes the temperature of the lithium battery 6 to continue to rise, and then spontaneous combustion occurs. Therefore, by providing a gap 5002 between the front limiting plate 51 and the rear limiting plate 52, the contact area between the lithium battery 6 and the outside air is increased, facilitating the heat dissipation of the lithium battery 6 to the outside and preventing the lithium battery 6 from spontaneous combustion due to excessive temperature.

[0044] Since the models of the recycled lithium batteries 6 are different, with different lengths and different diameters, different lithium batteries 6 need to be classified before crushing. On this basis, the support rod 4 is set as an electric push rod. Before placing the lithium battery 6, the distance between the front limiting plate 51 and the rear limiting plate 52 can be adjusted through the support rod 4, so that the storage cavity 5001 can adapt to lithium batteries 6 of different lengths, improving the adaptability to the lithium battery 6. Further, by setting the carriage 204 to slide left and right on the fixed plate 7, the first baffle 205 and the second baffle 206 slide left and right on the fixed plate 7, so that the position of the fixed plate 7 on the carriage 204 can be adjusted manually, and then the distance between the top plate 9 and the first baffle 205 can be adjusted, so that the space of the discharge cavity 9001 changes adaptively with the diameter of the lithium battery 6. At the same time, by setting the first driving member 201 to slide in the corresponding adjustment groove 7002, it is convenient for manual adjustment of the center distance between two adjacent first driving members 201, so that the center distance between two adjacent first driving members 201 is consistent with the center distance between two adjacent lithium batteries 6, which is convenient for the top block 8 to push the lithium battery 6 to move left. Moreover, by setting the first baffle 205 to slide in the through groove of the corresponding carriage 204, it is convenient for manual adjustment of the distance between two adjacent first baffles 205, so that the distance between two adjacent first baffles 205 changes adaptively with the center distance between two adjacent lithium batteries 6.

[0045] Since a heat shrink film is wrapped on the surface of the lithium battery 6, when the lithium battery 6 is crushed, the heat shrink film is usually crushed together, and in the subsequent treatment of the lithium battery 6, the heat shrink film is separately separated. In this way, an additional device for separating the heat shrink film needs to be added, thereby increasing the recycling cost. Moreover, during the crushing process, the electrolyte in the lithium battery 6 is likely to adhere to the heat shrink film, thus increasing the subsequent cleaning work of the heat shrink film. For this reason, a first cutting knife 301 and a clamping plate 302 are installed on two top blocks 8 at the same height. The first cutting knife 301 is used to push the lithium battery 6 to move instead of the top block 8. And before the first driving member 201 drives the top block 8 and the first cutting knife 301 to move leftward, first control the lock 9002 to be in the locked state, so that the top plate 9 is locked on the lock 9002. Then control the first driving member 201 to drive the first cutting knife 301 and the clamping plate 302 to move leftward, so that the first cutting knife 301 presses the lithium battery 6 leftward. At the same time, power is supplied to the first cutting knife 301 through an external power supply device, so that the temperature at the cutting edge of the first cutting knife 301 rises. Then, the heat shrink film on the surface of the lithium battery 6 is heated by the high temperature at the cutting edge, so that the contact surface between the heat shrink film and the cutting edge of the first cutting knife 301 shrinks, thereby disconnecting the heat shrink film. Then turn off the power supply of the first cutting knife 301. Subsequently, control the lock 9002 to be in the unlocked state, so that the top plate 9 can slide in the lock 9002, thereby enabling the first cutting knife 301 to push the lithium battery 6 and the top plate 9 to move leftward. During this process, since the blade spacing between the two second cutting knives 303 is equal to the width of the storage cavity 5001, that is, the two second cutting knives 303 are respectively aligned with the front center and the rear center of the adjacent lithium battery 6. As the lithium battery 6 moves leftward, the two second cutting knives 303 respectively contact the front part and the rear part of the heat shrink film on the surface of the lithium battery 6, and cut off the front part and the rear part of the heat shrink film through the second cutting knives 303. At this time, the heat shrink film is in a completely disconnected state. And after the heat shrink film located under the first cutting knife 301 is disconnected, it drops to the right between the first cutting knife 301 and the clamping plate 302. At the same time, as the first cutting knife 301 and the second cutting knife 303 move leftward, the sliding groove 30201 is synchronously driven to move leftward, so that the sliding groove 30201 contacts the guiding block 20501, and then the guiding block 20501 guides the clamping plate 302 to move upward. The spring between the clamping plate 302 and the first cutting knife 301 is stretched by force until the clamping plate 302 and the first cutting knife 301 are mutually attached, thereby clamping the heat shrink film located between the clamping plate 302 and the first cutting knife 301. And as the clamping plate 302 and the first cutting knife 301 continue to move leftward until the lithium battery 6 is separated from the bottom plate 7001, the lithium battery 6 drops downward, so that during the process of pushing the lithium battery 6 out of the discharge cavity 9001, the heat shrink film is separated by the clamping plate 302 and the first cutting knife 301, avoiding the subsequent separate separation treatment of the heat shrink film, improving the separation efficiency, reducing the recycling cost, and reducing the subsequent cleaning work of the heat shrink film. During this process,When the clamping plate 302 and the first cutting knife 301 clamp the heat-shrinkable film, since a heat-insulating plate 30101 is arranged on the lower side of the first cutting knife 301, the heat-insulating plate 30101 is used to cooperate with the clamping plate 302 to clamp the heat-shrinkable film instead of the first cutting knife 301, avoiding the heat on the first cutting knife 301 from being transferred to the heat-shrinkable film and causing the heat-shrinkable film to overheat and melt and adhere to the first cutting knife 301. When the lithium battery 6 drops downward, the first driving member 201 drives the first cutting knife 301 and the clamping plate 302 to move to the right, thereby driving the heat-shrinkable film to move to the right. At the same time, the top plate 9 resets. At this time, the heat-shrinkable film is located in the discharge cavity 9001. Subsequently, the first cutting knife 301 and the clamping plate 302 are moved to the right to the initial position, so that the sliding groove 30201 is disengaged from the guiding block 20501, and the spring between the first cutting knife 301 and the second cutting knife 303 resets, so that the second cutting knife 303 moves downward, so that the heat-shrinkable film loses clamping, and the heat-shrinkable film moves downward to the upper surface of the bottom plate 7001. Based on the front-to-back view, the motor 305 is controlled to drive the bottom plate 7001 to rotate counterclockwise, so that the heat-shrinkable film on the upper surface of the bottom plate 7001 falls into the collection bin 304. Subsequently, the bottom plate 7001 is controlled to reset and move, realizing the collection of the heat-shrinkable film. Moreover, when there are more heat-shrinkable films accumulated below the bottom plate 7001, the motor 305 drives the bottom plate 7001 to rotate counterclockwise to push the heat-shrinkable films below the bottom plate 7001 backward, so that the heat-shrinkable films are close to the discharge port 30402. When there are more heat-shrinkable films accumulated inside the collection bin 304, the peripheral air extraction device starts to extract air from the discharge port 30402, and uses the negative pressure generated by the air extraction to suck away the heat-shrinkable films around the discharge port 30402, thereby replacing manual labor to collect the heat-shrinkable films in the collection bin 304 and reducing the manual cleaning workload. Moreover, since a telescopic part 30401 is arranged in the middle of the collection bin 304, when the distance between the front side limiting plate 51 and the rear side limiting plate 52 changes, the telescopic part 30401 telescopically adapts, so as to ensure that the space of the collection bin 304 can adapt to the size of the lithium battery 6.,

[0046] In the above work of adjusting the distance between the front side limiting plate 51 and the rear side limiting plate 52 through the support rod 4, and then adjusting the width of the storage cavity 5001 to adapt to lithium batteries 6 of different lengths, the movement of the front side limiting plate 51 and the rear side limiting plate 52 synchronously drives the two fixing plates 7 to move, and then synchronously drives the carriage 204 and the second cutting knife 303 to move forward or backward, realizing synchronous adjustment of the blade spacing of every two corresponding second cutting knives 303, and then adapting to the film cutting work of lithium batteries 6 of different lengths. Moreover, the movement of the fixing plate 7 will drive the first driving member 201 and the top block 8 to move synchronously, so that the top block 8 slides back and forth on the first cutting knife 301.

[0047] On this basis, since a heating wire is provided at the bottom of the collection bin 304, when the lithium battery 6 discharges, the temperature of the heating wire rises, thereby increasing the temperature of the bottom of the collection bin 304. As a result, the heat shrink film in the collection bin 304 is heated and shrunk, reducing the space occupied by the heat shrink film, and thus increasing the number of heat shrink films that can be collected in the collection bin 304.

[0048] Embodiment 2

[0049] On the basis of Embodiment 1, as Figure 1 and Figure 2 shown, it further includes a water pipe 401; two symmetrically arranged water pipes 401 are fixedly connected to the fixing frame 1; each water pipe 401 is located above the adjacent crushing roller 3; a number of drainage holes are provided on each water pipe 401, and the drainage holes face between the two crushing rollers 3; the two water pipes 401 are communicated with an external water supply device.

[0050] Furthermore, to improve the recovery and utilization rate of the residual power in the lithium battery 6, a cavity is provided on the side wall of the collection box 2, and the resistance wire 203 is located in the cavity of the collection box 2, so that the heat energy generated by the resistance wire 203 is concentrated in the collection box 2, and then the lithium battery 6 fragments are dried by the heat energy in the collection box 2.

[0051] When the first cutter 301 presses the lithium battery 6, the heat on the first cutter 301 will be transferred to the lithium battery 6, resulting in an increase in the temperature of the upper surface of the lithium battery 6. Moreover, during the process of the crushing roller 3 crushing the lithium battery 6, the electrolyte after the lithium battery 6 is crushed is easily attached to the surface of the crushing roller 3. Since the crushing roller 3 continuously rubs against the lithium battery 6 and the surface temperature of the lithium battery 6 is relatively high, it is easy to cause the combustion of flammable organic substances in the electrolyte, generating harmful gases. At the same time, during the crushing process of the lithium battery 6, some lithium battery 6 debris will be generated. These debris contain electrolyte and are polluting, and the lithium battery 6 debris is easily scattered into the air, resulting in air quality pollution and making the working environment of the staff poor. Therefore, water is conveyed into the water pipe 401 through an external water supply device, and the water is sprayed out in a mist form from the drainage holes, so as to spray onto the lithium battery 6 between the two crushing rollers 3. The lithium battery 6 debris is wetted by the mist, preventing the lithium battery 6 debris from escaping everywhere, thus avoiding air quality pollution and improving the working environment of the staff. In addition, the surface of the crushing roller 3 and the lithium battery 6 are cooled by the mist, thus avoiding the combustion of flammable organic substances in the electrolyte.

[0052] On this basis, when the lithium battery 6 is wetted during the crushing process, its fragments contain moisture, which is not convenient for subsequent separation of the lithium battery 6 fragments. Therefore, when discharging the lithium battery 6, the electrical energy in the lithium battery 6 is converted into the heat energy of the heating wire 203. By arranging the heating wire 203 in the cavity of the collection box 2, the heat energy is concentrated in the collection box 2, and then the heat energy in the collection box 2 is used to dry the lithium battery 6 fragments, thus facilitating the subsequent separation of the lithium battery 6 fragments. Compared with the conventional drying method, by using the heat energy generated by discharging the lithium battery 6 to dry the moisture in the lithium battery 6 fragments, the recycling of the residual power in the lithium battery 6 is realized, the recycling rate of the lithium battery 6 is improved, and the electrical energy required for drying the lithium battery 6 fragments is reduced, thus reducing the recycling cost.

[0053] Although the present invention has been described with reference to exemplary embodiments, it should be understood that the present invention is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation so as to cover all modifications and equivalent structures and functions.

Claims

1. A separation device for recycling waste batteries in an environmentally friendly manner, comprising a fixed frame (1), a collection box (2) and a crushing roller (3); the collecting box (2) is installed on the lower side of the fixed frame (1); two left-right symmetrical crushing rollers (3) are rotatably connected to the upper side of the fixed frame (1); each crushing roller (3) is provided with an electric drive; the characteristics are: It also comprises a support rod (4), a front limit plate (51), a rear limit plate (52), a fixing plate (7), a discharge assembly, a discharge assembly and a separation system; two support rods (4) are fixedly connected to the upper side of the fixing frame (1); the front limit plate (51) and the rear limit plate (52) are respectively mounted on the two support rods (4); the front limit plate (51) and the rear limit plate (52) are both in an inverted trapezoidal shape, and a gap (5002) is provided between the front limit plate (51) and the rear limit plate (52); conductive plates are provided on the opposite sides of the front limit plate (51) and the rear limit plate (52); A storage cavity (5001) is formed between the front limit plate (51) and the rear limit plate (52); the storage cavity (5001) is used to place the lithium battery (6); a fixing plate (7) is fixedly connected to the lower side of each of the front limit plate (51) and the rear limit plate (52); a bottom plate (7001) is connected to the lower side of each fixing plate (7); an ejection assembly is installed between the two fixing plates (7); the lithium battery (6) is ejected out of the fixing plate (7) by the ejection assembly; a discharge assembly for discharging the lithium battery (6) is connected to the fixing frame (1); the discharge assembly is connected to the conductive plate; a separation system for separating the heat shrink film on the surface of the lithium battery (6) is provided on the fixing plate (7); The discharge assembly comprises a discharger (10) and a resistance wire (203); the discharger (10) is fixedly connected to the fixing frame (1); the discharger (10) is provided with positive and negative terminals respectively; the positive terminal of the discharger (10) is connected to the conductive plate of the front limit plate (51), and the negative terminal of the discharger (10) is connected to the conductive plate of the rear limit plate (52); a voltage detector is provided in the discharger (10), and a current protector is provided inside the discharger (10); the discharger (10) is connected with the resistance wire (203), and the two ends of the resistance wire (203) are respectively connected to the positive terminal and the negative terminal of the discharger (10); The discharge assembly comprises a top block (8), a top plate (9), a first driving member (201), a gear lever (202), a slide (204), a first baffle (205), a second baffle (206) and a second driving member (207); a plurality of first driving members (201) are mounted on each fixed plate (7); a top block (8) is fixedly connected to the telescopic end of each first driving member (201); a top plate (9) is slidably connected to each fixed plate (7) via a spring; a slide (204) is mounted in each fixed plate (7); a plurality of first baffles (205) are connected to each slide (204); a second baffle (206) is mounted on each slide (204) (206); each top block (8) is respectively located between two adjacent first baffles (205) and between the first baffle (205) and the second baffle (206); each second baffle (206) is fixedly connected to a plurality of second driving members (207); a shift rod (202) is fixedly connected to the telescopic end of each second driving member (207); a discharge cavity (9001) is formed between all the first baffles (205), the second baffles (206), the fixed plate (7), the bottom plate (7001), the top plate (9) and the shift rod (202); a lock (9002) is installed on each fixed plate (7); the lock (9002) is slidably connected to the top plate (9); The separation system comprises a first cutter (301), a clamping plate (302) and a second cutter (303); two top blocks (8) at the same height are commonly clamped with a first cutter (301), and the top blocks (8) slide forward and backward on the first cutter (301); the first cutter (301) is a hot melt cutter, and the first cutter (301) is connected to an external power supply device; a heat insulation board (30101) is arranged on the lower side of each first cutter (301); each first cutter (301) is provided with a heat insulation board (30101); A clamping plate (302) is connected via a spring; each clamping plate (302) is provided with a sliding groove (30201); each first baffle (205) is provided with a guide block (20501); each guide block (20501) is located in an adjacent sliding groove (30201); each slide frame (204) is slidably connected to a plurality of second cutters (303), and the blade spacing between two second cutters (303) at the same height is equal to the width of the storage cavity (5001); A heating wire is provided at the bottom of the collecting bin (304), and two ends of the heating wire are respectively connected to the positive and negative terminals of the discharger (10).

2. A separation device for environmentally friendly recycling of used batteries according to claim 1, characterized in that: The support rod (4) is configured as an electric push rod.

3. A separation device for environmentally friendly recycling of used batteries according to claim 1, characterized in that: The slide (204) is configured to slide left and right on the fixed plate (7); each slide (204) is provided with a through slot; the first baffle (205) is configured to slide in the through slot of the corresponding slide (204); each fixed plate (7) is provided with a plurality of adjustment slots (7002); and the first driving member (201) is configured to slide in the corresponding adjustment slot (7002).

4. A separation device for environmentally friendly recycling of used batteries according to claim 3, characterized in that: The separation system further comprises a collection bin (304) and a motor (305); a collection bin (304) for storing heat shrinkable films is fixedly connected to the lower sides of the two fixed plates (7); a telescopic portion (30401) is provided in the middle of the collection bin (304); a discharge port (30402) is provided in front of the collection bin (304); the discharge port (30402) is connected to an external air extraction device; each bottom plate (7001) is arranged to rotate on an adjacent fixed plate (7); a motor (305) is fixedly connected to each fixed plate (7); and an output shaft of each motor (305) is fixedly connected to an adjacent bottom plate (7001).

5. A separation device for environmentally friendly recycling of used batteries according to claim 1, characterized in that: It also includes a water pipe (401); a plurality of water pipes (401) are fixedly connected to the fixed frame (1); each water pipe (401) is located above an adjacent crushing roller (3); each water pipe (401) is provided with a plurality of drainage holes, and the drainage holes face between the two crushing rollers (3); and the plurality of water pipes (401) are connected to an external water supply device.

6. A separation device for environmentally friendly recycling of used batteries according to claim 1, characterized in that: A cavity is provided on the side wall of the collecting box (2), and the resistance wire (203) is located in the cavity of the collecting box (2).

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