Lithium battery crushing and separating line

Abstract

The present application relates to a kind of lithium battery crushing separation line, belong to lithium battery crushing recycling field, it includes crushing separation line body, crushing separation line body includes heating mechanism in its feeding end, heating mechanism includes rack and the conveying device and feeding device set on rack, feeding device is set to the right side portion of conveying device above, and the left side portion of conveying device is covered with heating cover;Feeding device includes fixedly set on the mounting bracket of rack, conveying plate vibratably set on mounting bracket, and fixedly set on the blanking bucket of rack;The upper and lower ends of blanking bucket are both opened, and blanking bucket is provided with the closure plate for blocking blanking bucket in openable;The right end of conveying plate is inclined downward and extended to the upper end opening of blanking bucket above, the middle part of conveying plate is provided with the windowing of penetrating conveying plate, and screen is provided in windowing.The present application can effectively improve the efficiency of crushing separation line crushing recycling waste lithium battery.

Description

Technical Field

[0001] This invention relates to the field of lithium battery crushing and recycling, and in particular to a lithium battery crushing and separation line. Background Technology

[0002] Lithium-ion batteries mainly consist of a casing, a positive electrode, a negative electrode, an electrolyte, and a separator. The positive electrode is typically formed by dispersing positive electrode active materials, conductive agents, and binders together in a solvent to form a uniform gel mixture, which is then coated onto aluminum foil. The conductive agent is usually a graphite-based compound that increases the conductivity of the active materials. The negative electrode structure is similar to the positive electrode, and it is usually formed by bonding carbon powder, the negative electrode active material, onto copper foil. Lithium-ion batteries contain valuable metal resources such as cobalt, lithium, and nickel. By recycling used lithium-ion batteries, these valuable metals can be recovered and reused.

[0003] Currently, lithium battery crushing and separation lines are commonly used to separate different materials in lithium batteries through crushing and screening, thereby enabling the recycling of different materials in lithium batteries. Before crushing waste lithium batteries, they need to be heated and dried to remove moisture.

[0004] The current heating process for waste lithium batteries generally involves using a conveyor to transport the collected waste lithium batteries through a heating zone. However, since the collected waste lithium batteries typically vary in size, and the heating time required to evaporate moisture differs for batteries of different sizes at the same temperature (larger batteries require longer heating times), the largest battery is used as the standard to adjust the heating time (time spent in the heating zone) for each battery. This leads to smaller batteries being overheated, meaning their actual heating time is much longer than required. This results in unnecessary time wastage during the heating process and reduces the efficiency of the lithium battery crushing and recycling line. Summary of the Invention

[0005] Based on this, it is necessary to provide a lithium battery crushing and separation line, including a crushing and separation line body. The crushing and separation line body includes a heating mechanism located at its feeding end. The heating mechanism includes a frame and a conveying device and a feeding device mounted on the frame. The feeding device is located above the right side of the conveying device, and a heating cover is provided on the left side of the conveying device. The feeding device includes a mounting frame fixedly mounted on the frame, a conveying plate vibratingly mounted on the mounting frame, and a discharge bin fixedly mounted on the frame. The discharge bin has openings at both the top and bottom, and a sealing plate that can be opened and closed to seal the discharge bin is provided inside. The right end of the conveying plate is inclined downwards and extends above the upper opening of the discharge bin. A window penetrating the conveying plate is opened in the middle of the conveying plate, and a screen is provided inside the window. The upper surface of the screen is flush with the upper surface of the conveying plate. The conveying plate is vibratingly mounted on the mounting frame by a spring, and a vibration motor is also provided on the conveying plate for vibrating the conveying plate.

[0006] In this invention, the crushing and separation line body is a production line for crushing and separating waste lithium batteries. The feeding end of the crushing and separation line body is the end of the crushing and separation line body that feeds waste lithium batteries, that is, the end where the crushing and separation line process begins. The crushing and separation line body includes a heating mechanism, a first crusher, a first cyclone dust collector, a Z-type separator, a second crusher, a drum screen, an air classifier, and a second cyclone dust collector, which are arranged sequentially from its feeding end and connected sequentially through a conveying channel. The system includes a heating mechanism for heating waste lithium batteries to remove moisture, a conveying device connected to a first crusher via a conveying channel to transport the heated waste lithium batteries to the first crusher for crushing, a first crushing mechanism for initial crushing of waste lithium batteries, a first cyclone separator for collecting dust generated during crushing, a Z-type separator for removing separator fragments from the crushed waste lithium battery fragments, a second crusher for further crushing the waste lithium battery fragments to obtain waste lithium battery powder, a drum screen for removing positive and negative electrode material powder from the waste lithium battery powder, an airflow separator for separating copper and aluminum powder from the waste lithium battery powder, and a second cyclone separator for collecting powder generated during the crushing process in the second crusher.

[0007] In this invention, a heating cover is mounted on a conveying device, and the area covered by the heating cover is the heating zone for heating waste lithium batteries. When the conveying device transports the waste lithium batteries through the heating cover, they can be heated to remove moisture. A feeding device is used to transport the recycled waste lithium batteries to the conveying device, which in turn transports the waste lithium batteries on it through the heating cover. The conveying speed of the conveying device determines the time it takes for the waste lithium batteries to pass through the heating cover, which in turn determines the heating time of the waste lithium batteries.

[0008] In this invention, the feeding device is used as follows: First, a batch of waste lithium batteries is poured onto the left end of the conveyor plate. Then, the conveyor plate vibrates, causing smaller waste lithium batteries that can pass through the screen to fall onto the conveyor and be transported to the heating hood. Larger waste lithium batteries that cannot pass through the screen slide down the inclination of the conveyor plate into the discharge bin, where they are blocked by a sealing plate. When no more waste lithium batteries fall onto the conveyor, the sealing plate in the discharge bin is opened, allowing the waste lithium batteries in the discharge bin to fall onto the conveyor and be transported to the heating hood. Then, the next batch of waste lithium batteries is poured onto the left end of the conveyor plate, and this process is repeated. Baffles can be installed on the front and rear edges of the conveyor plate to prevent waste lithium batteries from sliding off the front and rear edges.

[0009] As can be seen, when conveying waste lithium batteries, the feeding device of the present invention can screen waste lithium batteries into smaller and larger waste lithium batteries, so that the smaller and larger waste lithium batteries can be conveyed separately by the conveying device. At this time, by appropriately increasing the conveying speed of the conveying device when conveying the smaller waste lithium batteries, the heating time of the smaller waste lithium batteries can be shortened, making it closer to the time required for them to evaporate all the moisture. Compared with using a uniform heating time for all sizes of waste lithium batteries, the present invention can effectively reduce the time for heating waste lithium batteries and evaporating the moisture, thereby effectively improving the efficiency of the crushing and separation line for crushing and recycling waste lithium batteries.

[0010] For smaller waste lithium batteries, the heating time can be adjusted according to the size of the screen mesh, which corresponds to the heating time required for the largest waste lithium battery that can pass through.

[0011] Furthermore, the conveying device includes a first drive roller and a second drive roller rotatably mounted on the frame, and a conveyor belt sleeved on the first drive roller and the second drive roller. One of the first drive roller and the second drive roller is driven and connected to a servo motor mounted on the frame, and the first drive roller and the second drive roller are positioned at the same horizontal height. Baffles can be provided at the front and rear edges of the conveyor belt to prevent used lithium batteries from slipping off the front and rear edges of the conveyor belt.

[0012] In this invention, a servo motor is used to drive the first or second transmission roller connected to it to rotate, thereby realizing the conveyor belt to transport waste lithium batteries. The conveying speed of the conveying device can be adjusted by controlling the rotation speed of the servo motor.

[0013] Furthermore, the material discharge hopper is square-shaped, and the sealing plate includes a first blocking plate and a second blocking plate pivotally connected to the left and right side walls of the material discharge hopper, with the opposite ends of the first blocking plate and the second blocking plate abutting against each other; the front or rear side wall of the material discharge hopper is also provided with a first adjusting groove and a second adjusting groove corresponding to the first blocking plate and the second blocking plate, penetrating the side wall of the material discharge hopper, the first adjusting groove and the second adjusting groove are vertically arranged and located below the corresponding first blocking plate and the second blocking plate, and the upper ends of the first adjusting groove and the second adjusting groove are respectively flush with the lower surface of the first blocking plate and the second blocking plate; a first support rod and a second support rod can also be vertically arranged in the first adjusting groove and the second adjusting groove, and the first support rod and the second support rod extend into the material discharge hopper.

[0014] In this invention, the first and second support rods are horizontally arranged and can be raised and lowered in the first and second adjustment slots via a servo cylinder. By raising the first and second support rods to the top of the first and second adjustment slots, the sealing plate can be closed, sealing the larger waste lithium batteries in the discharge bin and preventing them from mixing with the smaller waste lithium batteries on the conveying device. By lowering the first and second support rods, the opposing ends of the first and second blocking plates can be rotated downwards, thereby opening the sealing plate and allowing the larger waste lithium batteries in the discharge bin to fall onto the conveyor belt.

[0015] Furthermore, a limiting frame is fixedly installed on the mounting frame. The limiting frame is located below the conveying plate, and a through window is formed on the limiting frame. The through window is located below the opening window, and the edge of the through window is connected to the edge of the opening window through a cylindrical flexible tube.

[0016] In this invention, the flexible cylinder can be a cloth cylinder, which is connected between the edge of the window and the edge of the through window. It can guide the small waste lithium batteries falling through the screen, so that they can fall smoothly onto the conveying device.

[0017] Furthermore, a light curtain sensor is provided below the limiting frame, with the transmitting end and receiving end of the light curtain sensor located at the left and right ends of the limiting frame, respectively, and the light curtain sensor is communicatively connected to the servo motor.

[0018] In this invention, a light curtain sensor is installed covering the area below the window to detect whether any used lithium batteries have fallen through the window. The sensor is connected to a servo motor via a microcontroller, which receives signals from the light curtain sensor to control the rotation speed of the servo motor accordingly. When a waste lithium battery passes through the light curtain sensor, it indicates that a waste lithium battery has fallen through the screen. At this time, the conveyor device transports smaller waste lithium batteries. Simultaneously, the microcontroller receives the signal from the light curtain sensor and controls the servo motor to increase its speed, raising the conveyor device's speed to the level suitable for transporting smaller waste lithium batteries. If the microcontroller does not receive a signal from the light curtain sensor within a preset time, such as 20 seconds, it indicates that all the smaller waste lithium batteries on the conveyor plate have fallen. At this time, the conveyor device transports larger waste lithium batteries. The microcontroller then controls the servo motor to decrease its speed, reducing the conveyor device's speed back to the preset speed, making it suitable for transporting larger waste lithium batteries. In short, this invention can automatically switch the conveyor device's speed, eliminating the need for manual control and making it convenient to use.

[0019] In addition, the microcontroller is also connected to the communication mechanism that drives the first and second support rods to move up and down. When the microcontroller does not receive a signal from the light curtain sensor within a preset time, such as 20 seconds, it controls the first and second support rods to move down, thus dropping the larger waste lithium batteries from the discharge bin onto the conveying device, allowing the conveying device to transport the larger waste lithium batteries. When the light curtain sensor receives a signal again, the microcontroller controls the first and second support rods to move up to the top of the first and second adjustment slots, thus sealing the larger waste lithium batteries that have slid down through the conveyor plate into the discharge bin, allowing the conveying device to transport only the smaller waste lithium batteries.

[0020] Furthermore, the heating cover includes a closed cover enclosing the conveying device. The cover has a through-groove for the conveyor belt to pass through, and the through-groove for the upper portion of the conveyor belt extends upward to form an extension groove for the lithium battery to pass through. Several heating components are also provided on the inner wall of the cover, located below the upper portion of the conveyor belt and above the lower portion of the conveyor belt. Several air vents are also provided on the top of the cover, with air vent pipes connected to the vents, and exhaust fans installed inside the air vent pipes. The conveyor belt is a metal mesh with several perforations. The upper portion of the conveyor belt refers to the portion of the conveyor belt flush with the upper ends of the first and second drive rollers, and the lower portion of the conveyor belt refers to the portion of the conveyor belt flush with the lower ends of the first and second drive rollers.

[0021] In this invention, the expansion groove on the cover is used to transport the waste lithium batteries by the conveyor belt, allowing the waste lithium batteries to smoothly enter the interior of the cover. The heating component located below the upper part of the conveyor belt is used to heat the air inside the cover, and the exhaust fan in the air outlet pipe is used to draw the air inside the cover upward, so that the hot air heated by the heating component flows upward, heating the waste lithium batteries. At the same time, it can also carry away the moisture evaporated from the heated waste lithium batteries and leave the cover, which can effectively increase the speed of moisture evaporation in the waste lithium batteries, improve the drying efficiency of the waste lithium batteries, and further improve the efficiency of lithium battery crushing and recycling.

[0022] Meanwhile, by connecting the exhaust pipe to the exhaust pipe, the exhaust fan can also collect the toxic and harmful gases generated during the heating process of used lithium batteries while drawing out the hot air from the enclosure, thus eliminating safety hazards.

[0023] Furthermore, the bottom of the cover is provided with several air inlets.

[0024] In this invention, the air inlet at the bottom of the cover is used to allow ambient air to enter the cover, ensuring that there is enough and continuous hot air passing through the waste lithium batteries to accelerate the removal of moisture evaporated from the waste lithium batteries, thereby further improving the drying speed of the waste lithium batteries.

[0025] The principles and effects of the present invention will be further explained below with reference to the above technical solutions and accompanying drawings:

[0026] The feeding device of this invention can screen waste lithium batteries into smaller and larger ones when conveying them. This allows both smaller and larger waste lithium batteries to be transported by the conveying device. By appropriately increasing the conveying speed of the conveying device when conveying the smaller waste lithium batteries, the heating time of the smaller waste lithium batteries can be shortened, bringing it closer to the time required for the moisture to evaporate. Compared to using a uniform heating time for all sizes of waste lithium batteries, this invention can effectively reduce the time required to heat waste lithium batteries and evaporate the moisture, thereby effectively improving the efficiency of the crushing and separation line in crushing and recycling waste lithium batteries. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the crushing and separating line body according to an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the heating mechanism described in an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the cooperation structure between the feeding device and the conveying device according to an embodiment of the present invention;

[0030] Figure 4 for Figure 3 A magnified view of a portion of the image;

[0031] Figure 5 This is a schematic diagram of the conveyor plate described in an embodiment of the present invention.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100-Heating mechanism, 1-Frame, 2-Mounting bracket, 31-Conveyor plate, 32-Window, 34-Spring, 35-Vibration motor, 36-Feeding hopper, 371-First baffle plate, 372-Second baffle plate, 381-First adjusting groove, 382-Second adjusting groove, 391-First support rod, 392-Second support rod, 4-Limiting frame, 41-Passage window, 5-Light curtain sensor, 6-Flexible cylinder, 71-First transmission roller 72-Second drive roller, 73-Conveyor belt, 81-Cover, 811-Extension trough, 812-Passage trough, 813-Heating component, 91-Outlet pipe, 92-Exhaust fan, 93-Waste gas emission pipe, 200-First crusher, 300-First cyclone dust collector, 400-Z-type separator, 500-Second crusher, 600-Drum screen, 700-Airflow separator, 800-Second cyclone dust collector, 900-Conveying channel. Detailed Implementation

[0034] To facilitate understanding by those skilled in the art, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments:

[0035] The instructions mention directions such as front, back, left, and right, which are attached. Figure 1 As the standard.

[0036] like Figure 1-5 A lithium battery crushing and separation line includes a crushing and separation line body, the crushing and separation line body including a heating mechanism 100 located at its feeding end, the heating mechanism 100 including a frame 1 and a conveying device and a feeding device disposed on the frame 1, the feeding device being disposed above the right side portion of the conveying device, and the left side portion of the conveying device being covered by a heating cover; the feeding device including a mounting frame 2 fixedly disposed on the frame 1 and a conveying plate 31 vibratingly disposed on the mounting frame 2. The assembly includes a material discharge bin 36 fixedly mounted on the frame 1; the material discharge bin 36 has openings at both its upper and lower ends, and a sealing plate that can be opened and closed to seal the material discharge bin 36 is provided inside the material discharge bin 36; the right end of the conveyor plate 31 is inclined downwards and extends above the upper opening of the material discharge bin 36, and a window 32 penetrating through the middle of the conveyor plate 31 is provided, with a screen installed inside the window 32, the upper surface of the screen being flush with the upper surface of the conveyor plate 31. The conveyor plate 31 is vibratoryly mounted on the mounting frame 2 by a spring 34, and a vibration motor 35 is also provided on the conveyor plate 31 for vibrating the conveyor plate 31.

[0037] In this invention, the crushing and separation line body is a production line for crushing and separating waste lithium batteries. The feeding end of the crushing and separation line body is the end where waste lithium batteries are fed into the crushing and separation line body, that is, the end where the crushing and separation line process begins. The crushing and separation line body includes a heating mechanism 100, a first crusher 200, a first cyclone dust collector 300, a Z-type separator 400, a second crusher 500, a drum screen 600, an airflow separator 700, and a second cyclone dust collector 800, which are arranged sequentially from its feeding end and connected sequentially through a conveying channel 900. The heating mechanism 100 is used to heat the waste lithium batteries to remove moisture. The conveying device in the heating mechanism 100 is connected to the first crusher 200 through the conveying channel 900 to transport the heated waste lithium batteries to the first crusher 200 for crushing. The first crusher 200 is used to perform the first crushing of the waste lithium batteries. The first cyclone integrator is used to collect the dust generated when the first crusher 200 crushes the lithium batteries. The Z-type separator 400 is used to screen out the membrane debris from the crushed waste lithium battery fragments. The second crusher 500 is used to further crush the waste lithium battery fragments to obtain waste lithium battery powder. The drum screen 600 is used to screen out the positive electrode material powder and negative electrode material powder from the waste lithium battery powder. The airflow separator 700 is used to screen out the copper powder and aluminum powder from the waste lithium battery powder. The second cyclone integrator is used to collect the powder generated by the waste lithium batteries during the crushing process of the second crusher 500.

[0038] In this invention, a heating cover is mounted on a conveying device, and the area covered by the heating cover is the heating zone for heating waste lithium batteries. When the conveying device transports the waste lithium batteries through the heating cover, they can be heated to remove moisture. A feeding device is used to transport the recycled waste lithium batteries to the conveying device, which in turn transports the waste lithium batteries on it through the heating cover. The conveying speed of the conveying device determines the time it takes for the waste lithium batteries to pass through the heating cover, which in turn determines the heating time of the waste lithium batteries.

[0039] In this invention, the feeding device is used as follows: First, a batch of waste lithium batteries is poured onto the left end of the conveyor plate 31. Then, the conveyor plate 31 vibrates, causing smaller waste lithium batteries that can pass through the screen to fall onto the conveyor and be transported to the heating hood. Larger waste lithium batteries that cannot pass through the screen slide down the inclination of the conveyor plate 31 into the discharge bin 36, where they are blocked by a sealing plate. When no more waste lithium batteries fall onto the conveyor, the sealing plate in the discharge bin 36 is opened, allowing the waste lithium batteries in the discharge bin 36 to fall onto the conveyor and be transported to the heating hood. Then, the next batch of waste lithium batteries is poured onto the left end of the conveyor plate 31, and this process is repeated. Baffles can be installed on the front and rear edges of the conveyor plate 31 to prevent waste lithium batteries from sliding off the front and rear edges of the conveyor plate 31.

[0040] As can be seen, when conveying waste lithium batteries, the feeding device of the present invention can screen waste lithium batteries into smaller and larger waste lithium batteries, so that the smaller and larger waste lithium batteries can be conveyed separately by the conveying device. At this time, by appropriately increasing the conveying speed of the conveying device when conveying the smaller waste lithium batteries, the heating time of the smaller waste lithium batteries can be shortened, making it closer to the time required for them to evaporate all the moisture. Compared with using a uniform heating time for all sizes of waste lithium batteries, the present invention can effectively reduce the time for heating waste lithium batteries and evaporating the moisture, thereby effectively improving the efficiency of the crushing and separation line for crushing and recycling waste lithium batteries.

[0041] For smaller waste lithium batteries, the heating time can be adjusted according to the size of the screen mesh, which corresponds to the heating time required for the largest waste lithium battery that can pass through.

[0042] Furthermore, the conveying device includes a first drive roller 71 and a second drive roller 72 rotatably mounted on the frame 1, and a conveyor belt 73 sleeved on the first drive roller 71 and the second drive roller 72. One of the first drive roller 71 and the second drive roller 72 is driven and connected to a servo motor mounted on the frame 1, and the first drive roller 71 and the second drive roller 72 are positioned at the same horizontal height. Baffles can be provided on the front and rear edges of the conveyor belt 73 to prevent used lithium batteries from slipping off the front and rear edges of the conveyor belt 73.

[0043] In this invention, a servo motor is used to drive the first transmission roller 71 or the second transmission roller 72 connected to it to rotate, thereby realizing the conveyor belt 73 to transport waste lithium batteries. The conveying speed of the conveying device can be adjusted by controlling the rotation speed of the servo motor.

[0044] Furthermore, the material discharge hopper 36 is square-shaped, and the sealing plate includes a first blocking plate 371 and a second blocking plate 372 pivotally connected to the left and right side walls of the material discharge hopper 36, with the opposite ends of the first blocking plate 371 and the second blocking plate 372 abutting against each other; the front or rear side wall of the material discharge hopper 36 is also provided with a first adjusting groove 381 and a second adjusting groove 382 penetrating the side wall of the material discharge hopper 36, corresponding to the first blocking plate 371 and the second blocking plate 372. The first and second adjustment grooves 381 and 382 are vertically arranged and located below the corresponding first and second baffle plates 371 and 372, respectively. The upper ends of the first and second adjustment grooves 381 and 382 are respectively flush with the lower surfaces of the first and second baffle plates 371 and 372. The first and second adjustment grooves 381 and 382 can also be vertically arranged with a first support rod 391 and a second support rod 392, and the first and second support rods 391 and 392 extend into the material drop hopper 36.

[0045] In this invention, the first support rod 391 and the second support rod 392 are horizontally arranged and can be raised and lowered in the first adjustment groove 381 and the second adjustment groove 382 by a servo cylinder. By raising the first support rod 391 and the second support rod 392 to the top of the first adjustment groove 381 and the second adjustment groove 382, ​​the sealing plate can be closed, sealing the larger waste lithium batteries in the dropping bin 36 and preventing the larger waste lithium batteries in the dropping bin 36 from mixing with the smaller waste lithium batteries on the conveying device. By lowering the first support rod 391 and the second support rod 392, the opposing ends of the first baffle plate 371 and the second baffle plate 372 can be rotated downward, thereby opening the sealing plate and allowing the larger waste lithium batteries in the dropping bin 36 to fall onto the conveyor belt 73.

[0046] Furthermore, a limiting frame 4 is fixedly installed on the mounting frame 2. The limiting frame 4 is located below the conveying plate 31, and a passage window 41 is formed on the limiting frame 4. The passage window 41 is located below the opening window 32, and the edge of the passage window 41 is connected to the edge of the opening window 32 through a cylindrical flexible tube 6.

[0047] In this invention, the flexible cylinder 6 can be a cloth cylinder, which is connected between the edge of the opening 32 and the edge of the through window 41. It can guide the small waste lithium batteries falling through the screen so that they can fall smoothly onto the conveying device.

[0048] Furthermore, a light curtain sensor 5 is provided below the limiting frame 4. The transmitting end and receiving end of the light curtain sensor 5 are located at the left and right ends of the limiting frame 4, respectively, and the light curtain sensor 5 is communicatively connected to the servo motor.

[0049] In this invention, a light curtain sensor 5 is set to cover the area below the window 41 to detect whether a used lithium battery has fallen from the window 41. It is connected to a servo motor via a microcontroller, which receives signals from the light curtain sensor 5 to control the rotation speed of the servo motor accordingly. When a waste lithium battery passes through the light curtain sensor 5, it indicates that a waste lithium battery has fallen through the screen. At this time, the conveying device transports smaller waste lithium batteries. Simultaneously, the microcontroller receives the signal from the light curtain sensor 5 and controls the servo motor to increase its speed, raising the conveying speed of the device to the speed suitable for transporting smaller waste lithium batteries. If the microcontroller does not receive a signal from the light curtain sensor 5 within a preset time, such as 20 seconds, it indicates that all the smaller waste lithium batteries on the conveyor plate 31 have fallen. At this time, the conveying device transports larger waste lithium batteries. The microcontroller then controls the servo motor to reduce its speed, lowering the conveying speed back to the original preset speed, making the device suitable for transporting larger waste lithium batteries. In other words, this invention can automatically switch the conveying speed of the device, eliminating the need for manual control and making it convenient to use.

[0050] In addition, the microcontroller is also connected to the communication mechanism that drives the first support rod 391 and the second support rod 392 to move up and down. When the microcontroller does not receive a signal from the light curtain sensor 5 within a preset time, such as 20 seconds, it controls the first support rod 391 and the second support rod 392 to move down, so that the larger waste lithium batteries in the dropping bin 36 can fall onto the conveying device, allowing the conveying device to transport the larger waste lithium batteries. When the light curtain sensor 5 receives a signal from the light curtain sensor 5 again, the microcontroller controls the first support rod 391 and the second support rod 392 to move up to the top of the first adjustment groove 381 and the second adjustment groove 382, ​​so that the larger waste lithium batteries that have slid down through the conveying plate 31 into the dropping bin 36 are sealed in the dropping bin 36, so that the conveying device only transports the smaller waste lithium batteries.

[0051] Furthermore, the heating cover includes a closed cover 81 covering the conveying device. The cover 81 has a through groove 812 for the conveyor belt 73 to pass through, and the through groove 812 for the upper part of the conveyor belt 73 to pass through extends upward to form an extension groove 811 for the lithium battery to pass through. A plurality of heating components 813 are also provided on the inner side wall of the cover 81. The heating components 813 are located below the upper part of the conveyor belt 73 and above the lower part of the conveyor belt 73. A plurality of air vents are also provided on the top of the cover 81. The air vents are connected to an air vent pipe 91, and an exhaust fan 92 is provided in the air vent pipe 91. The conveyor belt 73 is a metal mesh with a plurality of holes. The upper part of the conveyor belt 73 refers to the part of the conveyor belt 73 that is flush with the upper ends of the first drive roller 71 and the second drive roller 72, and the lower part of the conveyor belt 73 refers to the part of the conveyor belt 73 that is flush with the lower ends of the first drive roller 71 and the second drive roller 72.

[0052] In this invention, the expansion slot 811 on the cover 81 is used to transport the waste lithium batteries by the conveyor belt 73, while also allowing the waste lithium batteries to smoothly enter the interior of the cover 81. The heating component 813 located below the upper part of the conveyor belt 73 is used to heat the air inside the cover 81, and the exhaust fan 92 in the air outlet pipe 91 is used to draw the air inside the cover 81 upward, thereby allowing the hot air heated by the heating component 813 to flow upward, heating the waste lithium batteries. At the same time, it can also carry away the moisture evaporated from the heated waste lithium batteries and leave the cover 81, effectively increasing the speed at which the moisture in the waste lithium batteries evaporates, improving the drying efficiency of the waste lithium batteries, and further improving the efficiency of lithium battery crushing and recycling.

[0053] Meanwhile, by connecting the exhaust pipe 91 to the exhaust pipe 93, the exhaust fan 92 can also collect the toxic and harmful gases generated during the heating process of the waste lithium battery while extracting the hot air from the cover 81, thus eliminating its safety hazards.

[0054] Furthermore, the bottom of the cover 81 is provided with several air inlets.

[0055] In this invention, the air inlet at the bottom of the cover 81 is used to allow ambient air to enter the cover 81, ensuring that there is enough and continuous hot air passing through the waste lithium battery to accelerate the removal of moisture evaporated from the waste lithium battery, thereby further improving the drying speed of the waste lithium battery.

[0056] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A lithium battery crushing and separating line, comprising a crushing and separating line body, wherein the crushing and separating line body includes a heating mechanism located at its feeding end, characterized in that, The heating mechanism includes a frame and a conveying device and a feeding device mounted on the frame. The feeding device is located above the right side of the conveying device, and a heating cover is provided on the left side of the conveying device. The feeding device includes a mounting frame fixedly mounted on the frame, a conveying plate vibratingly mounted on the mounting frame, and a discharge hopper fixedly mounted on the frame. The discharge hopper has openings at both the top and bottom, and a sealing plate that can be opened and closed to seal the discharge hopper is provided inside. The right end of the conveying plate is inclined downwards and extends above the upper opening of the discharge hopper. A window penetrating the conveying plate is opened in the middle of the conveying plate, and a screen is provided inside the window. The upper surface of the screen is flush with the upper surface of the conveying plate. The conveying device includes a first drive roller and a second drive roller rotatably mounted on the frame, and a conveyor belt sleeved on the first drive roller and the second drive roller. One of the second transmission rollers is driven and connected to a servo motor mounted on the frame, and the first and second transmission rollers are set at the same horizontal height; the material discharge hopper is square-shaped, and the sealing plate includes a first blocking plate and a second blocking plate pivotally connected to the left and right side walls of the material discharge hopper, with the opposite ends of the first and second blocking plates abutting against each other; the front or rear side wall of the material discharge hopper is provided with a first adjusting groove and a second adjusting groove corresponding to the first and second blocking plates, penetrating the side wall of the material discharge hopper, the first adjusting groove and the second adjusting groove are vertically arranged and located below the corresponding first and second blocking plates, and the upper ends of the first adjusting groove and the second adjusting groove are respectively flush with the lower surfaces of the first and second blocking plates, and a first support rod and a second support rod can be vertically arranged in the first adjusting groove and the second adjusting groove, and the first support rod and the second support rod extend into the material discharge hopper.

2. The lithium battery crushing and separation line according to claim 1, characterized in that, A limiting frame is also fixedly installed on the mounting frame. The limiting frame is located below the conveying plate, and a through window is formed on the limiting frame. The through window is located below the opening window, and the edge of the through window is connected to the edge of the opening window through a cylindrical flexible tube.

3. A lithium battery crushing and separation line according to claim 2, characterized in that, A light curtain sensor is provided below the limiting frame. The transmitting end and receiving end of the light curtain sensor are located at the left and right ends of the limiting frame, respectively, and the light curtain sensor is communicatively connected to the servo motor.

4. A lithium battery crushing and separation line according to claim 1, characterized in that, The heating cover includes a closed cover enclosing the conveying device. The cover has a groove for the conveyor belt to pass through, and the groove for the upper part of the conveyor belt to pass through extends upward to form an extension groove for the lithium battery to pass through. Several heating components are also provided on the inner wall of the cover. The heating components are located below the upper part of the conveyor belt and above the lower part of the conveyor belt. Several air vents are also provided on the top of the cover. Air vents are connected to air vent pipes, and exhaust fans are provided in the air vent pipes. The conveyor belt is a metal mesh with several holes.

5. A lithium battery crushing and separation line according to claim 4, characterized in that, The bottom of the cover is also provided with several air inlets.

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