Waste ternary lithium battery recycling equipment

Abstract

The invention relates to the technical field of battery recycling, and discloses waste ternary lithium battery recycling equipment which comprises a crusher, a crushing roller and a crushing plate, a guide hopper is installed in the crusher, a conveying belt is arranged below the guide hopper, a crushing assembly is arranged on the outer side of the crushing roller, and an air hole used for spraying nitrogen is formed in the side portion of the crushing assembly. A gas conveying assembly is arranged in the crushing roller and communicates with the gas holes. In an oxygen-deficient environment, the crushing assembly extrudes and crushes the lithium battery, and when the lithium battery is crushed, the air holes spray nitrogen to the lithium battery, so that an oxygen-free environment is instantly formed near the lithium battery, and the risk of explosion generated when the lithium battery is crushed is effectively reduced; and the crushing head is driven by the sliding block to move outwards by the same distance for compensation, so that the distance between the end part of the crushing head and the crushing plate is not changed, and a good crushing effect is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of battery recycling, and specifically, to a device for recycling and reusing waste ternary lithium batteries. Background Art

[0002] The recycling and reusing of waste ternary lithium batteries is an important environmental protection and resource recycling process. When the battery capacity decays to the point where it can no longer meet any requirements, it can be disassembled and recycled to extract high-value metal materials such as lithium, cobalt, and nickel. The disassembly and regeneration process usually includes steps such as disassembly, crushing, sorting, and smelting, aiming to achieve the recycling of resources.

[0003] The application of charged crushing technology simplifies the complex process of traditional recycling that requires prior discharging, improves the recycling efficiency, and maximally retains the characteristics of battery materials. The lithium battery anaerobic crusher is a device specifically used for processing waste lithium batteries. It can crush lithium batteries in an anaerobic or oxygen-deficient environment, thus effectively avoiding the risk of combustion or explosion caused by short circuits, electrolyte volatilization, etc. during the crushing process. The lithium battery anaerobic crusher reduces the oxygen concentration in the crushing chamber by injecting inert gases such as nitrogen to form an anaerobic or oxygen-deficient environment. In this environment, the battery can be crushed even when charged without the need for prior discharging, which greatly saves time and cost.

[0004] The high-efficient crushing ability enables the device to quickly process a large number of waste lithium batteries. The lithium battery anaerobic crusher is usually equipped with a high-efficient sorting system that can perform fine screening and sorting on the crushed materials, thereby separating different components such as copper, aluminum particles, diaphragms, and battery material electrode powders, improving the resource recycling rate.

[0005] Currently, existing anaerobic crushers for ternary lithium batteries usually directly inject nitrogen into the machine body to form an oxygen-deficient environment inside the machine, and then use a crushing mechanism to crush the batteries. However, when a large number of batteries are crushed simultaneously, it is difficult to correspondingly increase the nitrogen concentration, which easily increases the risk of explosion during battery crushing; therefore, it does not meet the existing requirements, and for this reason, we propose a device for recycling and reusing waste ternary lithium batteries. Summary of the Invention

[0006] The present invention provides a device for recycling and reusing waste ternary lithium batteries. This device for recycling and reusing waste ternary lithium batteries can increase the nitrogen concentration at the battery crushing location, thereby reducing the risk of explosion during battery crushing, and solving the problem mentioned in the above background art that existing anaerobic crushers for ternary lithium batteries usually directly inject nitrogen into the machine body to form an oxygen-deficient environment inside the machine, and then use a crushing mechanism to crush the batteries. However, when a large number of batteries are crushed simultaneously, it is difficult to correspondingly increase the nitrogen concentration, which easily increases the risk of explosion during battery crushing.

[0007] To achieve the above object, the present disclosure provides a recycling and reuse device for waste ternary lithium batteries, including a crusher, a crushing roller rotatably arranged inside the crusher, and a crushing plate arranged inside the crusher and cooperating with the crushing roller. A feeding hopper is installed inside the crusher, and a conveyor belt is rotatably arranged below the feeding hopper. The feeding hopper and the conveyor belt cooperate to uniformly and continuously convey the lithium batteries stacked in the feeding hopper between the crushing roller and the crushing plate for crushing. A crushing component is arranged outside the crushing roller, and air holes for injecting nitrogen are formed in the side of the crushing component. An air conveying component is arranged inside the crushing roller, and the air conveying component is communicated with the air holes.

[0008] Optionally, the upper end of the crusher is connected to a feeding hopper, and a cover plate is rotatably arranged at the end of the feeding hopper. The lower end of the crusher is connected to a discharging hopper, and a baffle is rotatably arranged at the lower end of the discharging hopper. The number of the baffles is set to two, and the two baffles are respectively located on both sides of the discharging hopper.

[0009] Optionally, sleeve rods are respectively installed on both sides of the discharging hopper. The sleeve rods are arc-shaped rods. Plug rods are respectively installed on the outer sides of the two baffles. The plug rods cooperate with the sleeve rods. The two plug rods are respectively slidably inserted into the two sleeve rods. First springs are arranged inside the sleeve rods. Two ends of each first spring are respectively connected to the inner wall of the sleeve rod and the end of the plug rod. Handles are respectively installed on the outer sides of the baffles. A storage box is arranged below the discharging hopper. The storage box is used for storing the crushed ternary lithium battery materials. In the initial state, the two baffles are on the same horizontal plane, and the lower end of the discharging hopper is closed by the two baffles. Nitrogen is injected into the inner cavity of the crusher, so that the lithium batteries are crushed in an oxygen-deficient environment.

[0010] Optionally, a motor is arranged outside the crusher. A crushing rotating shaft is installed at the end of the crushing roller. A first pulley is sleeved on the output shaft of the motor. A second pulley is sleeved at the end of the crushing rotating shaft. A first transmission belt is jointly sleeved between the first pulley and the second pulley; A conveyor roller is rotatably inserted into the side of the crusher. The number of the conveyor rollers is set to two. The conveyor belt is jointly sleeved between the two conveyor rollers. A conveyor rotating shaft is installed at the end of one of the conveyor rollers. A third pulley is sleeved in the middle of the crushing rotating shaft. A fourth pulley is sleeved at the end of the conveyor rotating shaft. A second transmission belt is jointly sleeved between the third pulley and the fourth pulley.

[0011] Optionally, the distance between the bottom of the material guiding hopper and the conveyor belt is less than the diameter of a cylindrical ternary lithium battery. A material discharging opening is formed on one side of the lower end of the material guiding hopper close to the crushing plate. The height of the material discharging opening is greater than the diameter of a cylindrical ternary lithium battery and less than the sum of the diameters of two cylindrical ternary lithium batteries.

[0012] Optionally, the number of the crushing components is set to be several, and several crushing components are evenly arranged outside the crushing roller. A groove for cooperating with the crushing components is formed on one side of the crushing plate close to the crushing roller. The number of the grooves is set to be several, and several crushing components located in a circle outside the crushing roller are alternately inserted into the corresponding grooves. The crushing component includes a base installed outside the crushing roller and a crushing head movably arranged at the end of the base. Air holes are formed in the side wall of the base. The air inlet ends of the air holes are all arranged in the base, and the air outlet ends of the air holes are all arranged at the end of the base. Sealing sheets are arranged at the air outlet ends of the air holes. The sealing sheets are made of rubber sheets, and a "cross" crack is formed in the middle of the sealing sheets.

[0013] Optionally, the air conveying component includes an air cavity and air channels formed in the crushing roller. The number of the air channels is the same as that of the crushing components. One ends of the air channels are jointly communicated with the air cavity, and the other ends of the air channels are respectively communicated with the corresponding crushing components.

[0014] Optionally, a nitrogen generator is arranged outside the crusher. An air tank is arranged on the side of the nitrogen generator. A gas transmission pipe is connected between the nitrogen generator and the air tank. The crushing rotating shaft is set to be a hollow tubular shape. One end of the crushing rotating shaft is communicated with the air cavity, and a gas transmission pipe is also connected between the other end of the crushing rotating shaft and the air tank. One end of the gas transmission pipe located between the crushing rotating shaft and the air tank is communicated with the air tank, and the other end is rotatably connected with the end of the crushing rotating shaft.

[0015] Optionally, the crushing component includes the base installed outside the crushing roller, a slider slidably inserted at the end of the base, and the crushing head slidably inserted at the end of the slider. A second spring is arranged inside the slider. Two ends of the second spring are respectively connected with the crushing head and the inner wall of the slider. A barrier sheet is installed outside the slider. The barrier sheet is slidably attached to the inner wall of the base. In the initial state, the barrier sheet covers the air inlet end of the air hole to seal the air inlet end of the air hole.

[0016] Optionally, a chute is provided on the side wall of the slider. A shaft rod is slidably inserted into the chute. One end of the shaft rod is connected to the inner wall of the base, and the other end of the shaft rod is located inside the slider and is rotatably sleeved with a gear. A first rack is installed at the end of the crushing head inside the slider, and the first rack meshes with one side of the gear. A second rack is installed on the inner wall of the slider, and the second rack meshes with the other side of the gear.

[0017] Through the above technical solution, when the waste ternary lithium battery recycling and reuse equipment provided by the present disclosure is in use: through the combined use of the feeding hopper and the conveyor belt, the lithium batteries are evenly dropped between the crushing rollers and the crushing plates. The crushing rollers drive the crushing components to rotate, and in an oxygen-deficient environment, the crushing components squeeze and crush the lithium batteries, reducing the explosion risk. Moreover, when the lithium batteries are crushed, nitrogen is sprayed through the air holes, so that the nitrogen concentration near the lithium batteries instantaneously increases to form an oxygen-free environment, thereby more effectively reducing the explosion risk generated when the lithium batteries are crushed. Not only that, the distance that the crushing head in the crushing component slides inward under extrusion is compensated by the slider driving the crushing head to move outward by the same distance, so that when the crushing head crushes the lithium battery, the distance between the end of the crushing head and the crushing plate remains unchanged. Therefore, on the premise of reducing the explosion risk generated when the lithium battery is crushed, a good crushing effect is ensured.

[0018] Other features and advantages of the present disclosure will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings are used to provide a further understanding of the present disclosure, and constitute a part of the specification. Together with the following specific implementation, they are used to explain the present disclosure, but do not constitute a limitation to the present disclosure. In the drawings: Figure 1 It is a three-dimensional structure diagram of the present invention.

[0020] Figure 2 It is a partial three-dimensional structure diagram of the present invention.

[0021] Figure 3 It is an internal three-dimensional structure diagram of the present invention.

[0022] Figure 4 It is a three-dimensional structure diagram of the crushing roller of the present invention.

[0023] Figure 5 It is a partial sectional structure diagram of the present invention.

[0024] Figure 6 It is an exploded view of the crushing component of the present invention.

[0025] Figure 7 It is of the present invention Figure 5Schematic diagram of the normal magnification structure at A in the [Chinese context].

[0026] Figure 8 Schematic diagram of the structure when the crushing head at A of the present invention squeezes a lithium battery.

[0027] Figure 9 Schematic diagram of the closing structure of the closing piece of the present invention.

[0028] Figure 10 Schematic diagram of the opening structure of the closing piece of the present invention.

[0029] Figure 11 Schematic diagram of the three-dimensional structure of the material guiding hopper of the present invention.

[0030] Figure 12 Schematic diagram of the sectional structure with the baffle opened of the present invention.

[0031] Explanation of reference numerals: 100, crusher; 101, feed hopper; 102, cover plate; 103, discharge hopper; 104, baffle; 105, sleeve rod; 106, insertion rod; 107, first spring; 108, handle; 109, storage bin; 110, crushing roller; 120, crushing plate; 130, material guiding hopper; 131, conveyor belt; 140, motor; 141, crushing rotating shaft; 142, first pulley; 143, second pulley; 144, first transmission belt; 145, conveyor roller; 146, conveyor rotating shaft; 147, third pulley; 148, fourth pulley; 149, second transmission belt; 150, discharge opening; 160, air hole; 170, groove; 171, base; 172, crushing head; 173, closing piece; 174, air chamber; 175, air duct; 180, nitrogen generator; 181, gas tank; 182, gas transmission pipe; 190, slider; 191, second spring; 192, barrier piece; 193, sliding groove; 194, shaft rod; 195, gear; 196, first rack; 197, second rack. Detailed implementation manners

[0032] To make the above objects, features, and advantages of the present disclosure more apparent and understandable, the following will describe the detailed implementation manners of the present disclosure with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present disclosure. However, the present disclosure can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present disclosure. Therefore, the present disclosure is not limited by the specific embodiments disclosed below.

[0033] In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present disclosure. The terms "first" and "second" used are for distinguishing one element from another and do not have sequentiality and importance. In addition, in the following description when referring to the drawings, the same reference numerals in different drawings represent the same or similar elements, and the present disclosure will not elaborate on this here.

[0034] In the present disclosure, unless otherwise clearly specified and defined, the terms "mounted", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0035] According to some embodiments of the present disclosure, a waste ternary lithium battery recycling and reuse device is provided. As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 9 , Figure 10 , Figure 11 and Figure 12 , the waste ternary lithium battery recycling and reuse device includes a crusher 100, a crushing roller 110 rotatably arranged inside the crusher 100, and a crushing plate 120 fixedly arranged inside the crusher 100 and cooperating with the crushing roller 110. A feeding hopper 130 is fixedly installed inside the crusher 100. A conveyor belt 131 is rotatably arranged below the feeding hopper 130. The feeding hopper 130 cooperates with the conveyor belt 131 to uniformly and continuously convey the lithium batteries accumulated in the feeding hopper 130 between the crushing roller 110 and the crushing plate 120 for crushing. A crushing assembly is arranged outside the crushing roller 110. An air hole 160 for spraying nitrogen is provided on the side of the crushing assembly. An air delivery assembly for delivering nitrogen to the air hole 160 is arranged inside the crushing roller 110. The air delivery assembly is communicated with the air hole 160.

[0036] In this way, through the combined use of the material guiding hopper 130 and the conveyor belt 131, a certain amount of lithium batteries gradually and evenly fall between the crushing rollers 110 and the crushing plate 120. At the same time, the crushing rollers 110 drive the crushing components to rotate, so that the crushing components squeeze and crush the lithium batteries. Moreover, since the lithium batteries are crushed in an oxygen-deficient environment, the explosion risk is reduced. Further, when the crushing components crush the lithium batteries, nitrogen is sprayed through the air holes 160, so that the nitrogen concentration near the lithium batteries increases instantaneously to form an oxygen-free environment, thereby more effectively reducing the explosion risk generated when the lithium batteries are crushed.

[0037] In addition, the upper end of the crusher 100 is fixedly connected with a feed hopper 101. A cover plate 102 is rotatably arranged at the end of the feed hopper 101. When the cover plate 102 is closed, the upper end of the feed hopper 101 is kept sealed. The lower end of the crusher 100 is fixedly connected with a discharge hopper 103. A baffle 104 is rotatably arranged at the lower end of the discharge hopper 103. The number of the baffles 104 is set to two, and the two baffles 104 are respectively located on both sides of the discharge hopper 103.

[0038] Further, sleeve rods 105 are respectively fixedly installed on both sides of the discharge hopper 103. The sleeve rods 105 are arc-shaped rods. Plug rods 106 are respectively fixedly installed on the outer sides of the two baffles 104. The plug rods 106 are used in cooperation with the sleeve rods 105. The two plug rods 106 are respectively slidably inserted into the two sleeve rods 105. First springs 107 are arranged on the inner sides of the sleeve rods 105. The two ends of each first spring 107 are respectively fixedly connected with the inner wall of the sleeve rod 105 and the end of the plug rod 106. Handles 108 are respectively fixedly installed on the outer sides of the baffles 104. A storage box 109 is arranged below the discharge hopper 103. The storage box 109 is used for storing the crushed ternary lithium battery materials. In the initial state, the two baffles 104 are on the same horizontal plane, and the two baffles 104 close the lower end of the discharge hopper 103, so that the lower end of the discharge hopper 103 is kept sealed. Nitrogen is injected into the inner cavity of the crusher 100, so that the inner cavity of the crusher 100 is in an oxygen-deficient state, thereby enabling the lithium batteries to be crushed in an oxygen-deficient environment.

[0039] Specifically, a motor 140 is fixedly arranged outside the crusher 100. A crushing rotating shaft 141 is fixedly installed at the end of the crushing roller 110. A first pulley 142 is interference-fitted on the output shaft of the motor 140. A second pulley 143 is interference-fitted at the end of the crushing rotating shaft 141. A first transmission belt 144 is jointly sleeved between the first pulley 142 and the second pulley 143. A conveying roller 145 is rotatably inserted into the side of the crusher 100 through a bearing. The number of the conveying rollers 145 is set to two. A conveyor belt 131 is jointly sleeved between the two conveying rollers 145. A conveying rotating shaft 146 is fixedly installed at the end of one of the conveying rollers 145. A third pulley 147 is interference-fitted in the middle of the crushing rotating shaft 141. A fourth pulley 148 is interference-fitted at the end of the conveying rotating shaft 146. A second transmission belt 149 is jointly sleeved between the third pulley 147 and the fourth pulley 148.

[0040] The distance between the bottom of the material guiding hopper 130 and the upper surface of the conveyor belt 131 is less than the diameter of a cylindrical ternary lithium battery. A material discharging port 150 is opened on one side of the lower end of the material guiding hopper 130 close to the crushing plate 120. The height of the material discharging port 150 is greater than the diameter of a cylindrical ternary lithium battery, and at the same time, the height of the material discharging port 150 is also less than the sum of the diameters of two cylindrical ternary lithium batteries.

[0041] In addition, the number of the crushing assemblies is set to several, and several crushing assemblies are evenly arranged outside the crushing roller 110. Grooves 170 for cooperating with the crushing assemblies are opened on the side of the crushing plate 120 close to the crushing roller 110. The number of the grooves 170 is set to several. Several crushing assemblies located in a circle outside the crushing roller 110 are alternately inserted into the corresponding grooves 170. Sealing pieces 173 are arranged at the air outlet ends of the air holes 160. The sealing pieces 173 are made of rubber sheets or plastic sheets, and a "cross" crack is arranged in the middle of the sealing pieces 173.

[0042] The air conveying assembly includes an air cavity 174 and air channels 175 opened inside the crushing roller 110. The number of the air channels 175 is the same as the number of the crushing assemblies. One ends of the air channels 175 are jointly communicated with the air cavity 174, and the other ends of the air channels 175 are respectively communicated with the corresponding crushing assemblies.

[0043] A nitrogen generator 180 is provided outside the crusher 100. An air tank 181 is provided on the side of the nitrogen generator 180. The air tank 181 is used to store the nitrogen produced by the nitrogen generator 180. An air delivery pipe 182 is connected between the nitrogen generator 180 and the air tank 181. The crushing rotating shaft 141 is arranged as a hollow tubular shape. One end of the crushing rotating shaft 141 is communicated with the air cavity 174. An air delivery pipe 182 is also connected between the other end of the crushing rotating shaft 141 and the air tank 181. One end of the air delivery pipe 182 located between the crushing rotating shaft 141 and the air tank 181 is communicated with the air tank 181, and the other end is rotatably connected to the end of the crushing rotating shaft 141, and the connection part is sealed by conventional technical means. A pneumatic valve is connected to the middle of the air delivery pipe 182. The pneumatic valve can detect the air pressure of the nitrogen in the air tank 181, and control the amount of nitrogen filled into the air tank 181 by opening and closing the pneumatic valve, so as to keep the total amount of nitrogen in the air tank 181 at a set value.

[0044] Through the above technical solution, when the waste ternary lithium battery recycling and reuse equipment provided by the present disclosure is in use, first, open the cover plate 102, and put a certain amount of waste ternary lithium batteries into the guide hopper 130 through the feed hopper 101, so that a certain amount of lithium batteries are stacked between the conveyor belt 131 and the guide hopper 130. Inject nitrogen into the inner cavity of the crusher 100 to form an oxygen-deficient environment in the inner cavity of the crusher 100. Close the cover plate 102 to seal the upper end of the feed hopper 101. At the same time, seal the lower end of the discharge hopper 103 through the baffle 104 to seal the inner cavity of the crusher 100, so as to maintain a stable oxygen-deficient environment in the crusher 100. Then, manufacture nitrogen through the nitrogen generator 180 to store a certain amount of nitrogen in the air tank 181; Subsequently, start the motor 140, drive the crushing roller 110 to rotate through the first transmission belt 144. At the same time, drive the conveyor belt 131 to rotate through the second transmission belt 149, so that the lithium batteries stacked in the guide hopper 130 are evenly conveyed to between the crushing roller 110 and the crushing plate 120 through the blanking port 150, and the lithium batteries are crushed by the extrusion of the crushing assembly. Moreover, when the crushing head 172 is in extrusion contact with the lithium battery, the crushing head 172 moves backward and retracts, so that the air inlet end of the air hole 160 is opened, and the nitrogen in the air tank 181 is poured into the air hole 160 through the air cavity 174 and the air duct 175. Due to the impact of the air flow on the sealing piece 173, the seal is opened, so that nitrogen is sprayed from the end of the air hole 160 to the lithium battery being crushed, so that the nitrogen concentration around the crushed lithium battery is instantly increased, and the crushed lithium battery is in a more oxygen-deficient environment, further reducing the risk of explosion when the lithium battery is crushed; Finally, the crushed lithium battery materials accumulate in the discharge hopper 103. When the weight of the accumulated materials is greater than the supporting force of the first spring 107 on the baffle 104, the insertion rod 106 slides into the sleeve rod 105, and the first spring 107 is compressed. At the same time, the baffle 104 flips downward to open the lower end of the discharge hopper 103, so that the materials in the discharge hopper 103 fall into the storage bin 109 for collection. Moreover, holding the handle 108 facilitates opening the baffle 104, thus facilitating the cleaning of the remaining materials in the discharge hopper 103.

[0045] In summary, the inner cavity of the crusher 100 is sealed to isolate the outside oxygen from entering the crusher 100 as much as possible, so that a stable oxygen-deficient environment is maintained inside the crusher 100, thereby reducing the risk of explosion during the crushing of lithium batteries. Further, when the crushing head 172 squeezes and crushes the lithium battery, nitrogen is locally sprayed onto the lithium battery being crushed, so that it is in an extremely oxygen-deficient or even oxygen-free environment at the moment of being crushed, effectively reducing the explosion risk during the crushing of lithium batteries again, thereby reducing the possibility of equipment damage, improving the safety of operation, and greatly increasing the recovery rate of high-value metal materials in lithium batteries. Moreover, when the crushing head 172 is not subjected to extrusion force, it indicates that the crushing head 172 is not crushing the lithium battery at this time, and at this time the air holes 160 are closed, and there is no need to spray nitrogen outward, so that nitrogen is accurately sprayed onto the lithium battery being crushed, thereby reducing the loss of nitrogen and achieving the effect of saving resources, reducing costs and increasing efficiency.

[0046] It should be noted that when the lithium battery is crushed, the diaphragm is damaged, the electrolyte leaks, and internal short circuits occur, which easily lead to explosions. The nitrogen generator 180 is a device used to separate nitrogen from the air. Its core principle is based on the physical property differences of the component gases in the air, such as differences in boiling points, adsorption characteristics, or membrane permeation rates, etc., so as to separate and extract nitrogen from the air. This is a mature existing technology and will not be elaborated here.

[0047] In some embodiments, in the implementation manner where the crushing assembly is arranged outside the crushing roller 110, referring to Figure 4 、 Figure 5 、 Figure 7 and Figure 8 as shown, the crushing assembly includes a base 171 fixedly installed outside the crushing roller 110 and a crushing head 172 movably arranged at the end of the base 171. Air holes 160 are opened in the side wall of the base 171. The inlet ends of the air holes 160 are all arranged inside the base 171, and the outlet ends of the air holes 160 are all arranged at the end of the base 171.

[0048] In some other implementation manners, in the implementation manner where the crushing assembly is arranged outside the crushing roller 110, referring to Figure 4 、 Figure 5, Figure 6 , Figure 7 and Figure 8 As shown in ,

[0049] , the crushing assembly includes a base 171 fixedly installed outside the crushing roller 110, a slider 190 slidably inserted at the end of the base 171, and a crushing head 172 slidably inserted at the end of the slider 190. A second spring 191 is arranged inside the slider 190, and both ends of the second spring 191 are fixedly connected to the crushing head 172 and the inner wall of the slider 190 respectively. A barrier piece 192 is fixedly installed outside the slider 190, and the barrier piece 192 is in sliding fit with the inner wall of the base 171. In the initial state, the barrier piece 192 covers the air inlet end of the air hole 160 to close the air inlet end of the air hole 160.

[0049] A chute 193 is formed in the side wall of the slider 190, and the chute 193 penetrates through the side wall of the slider 190. A shaft rod 194 is slidably inserted in the chute 193. One end of the shaft rod 194 is fixedly connected to the inner wall of the base 171, and the other end of the shaft rod 194 is located inside the slider 190 and is rotatably sleeved with a gear 195. A first rack 196 is fixedly installed at the end of the crushing head 172 located inside the slider 190, and the first rack 196 meshes with one side of the gear 195. A second rack 197 is fixedly installed on the inner wall of the slider 190, and the second rack 197 meshes with the other side of the gear 195.

[0050] Among them, the crushing assembly is in different states under different circumstances.

[0051] For example, in some embodiments, referring to Figure 4 , Figure 5 , Figure 6 , Figure 7 as shown, the crushing assembly can have a first state. The first state is when the crushing assembly does not crush the lithium battery. In the first state, the slider 190 is located inside the base 171, while the crushing head 172 extends outwards so that the end of the crushing head 172 is close to the crushing plate 120.

[0052] For example, in some embodiments, referring to Figure 4 , Figure 5 , Figure 6 , Figure 8 as shown, the crushing assembly can have a second state. The second state is when the crushing assembly is crushing the lithium battery. In the second state, the crushing head 172 squeezes and crushes the lithium battery.

[0053] Next, the present disclosure will introduce the crushing assembly in detail in combination with the above specific embodiments. Referring to Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 as shown, Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 ​​​​​​​​​​​​​​​​As shown in the figure, when the crushing head 172 squeezes and crushes the lithium battery, the crushing head 172 retracts into the slider 190 due to the resistance, and the second spring 191 is compressed, causing the crushing head 172 to drive the first rack 196 to move. Through the meshing of the first rack 196 and the gear 195, the gear 195 rotates. At the same time, through the meshing of the gear 195 and the second rack 197, the second rack 197 drives the slider 190 to slide outwards, and the slider 190 drives the barrier piece 192 to move, so that the air inlet end of the air hole 160 is opened, facilitating the injection of nitrogen. Moreover, the moving direction of the crushing head 172 is opposite to that of the slider 190, and the moving distances are the same, so that the forward movement distance of the slider 190 compensates for the backward movement distance of the crushing head 172, thus ensuring that the distance between the end of the crushing head 172 and the crushing plate 120 remains unchanged, and ensuring that the crushing effect of the crushing head 172 on the lithium battery is not affected; When the lithium battery is crushed, the resistance to the crushing head 172 is released, causing the crushing head 172 to move forward and reset under the action of the resilience of the second spring 191. At the same time, the slider 190 also moves backward and resets, causing the crushing assembly to be restored, and the barrier piece 192 closes the air inlet end of the air hole 160 again.

[0054] The preferred embodiments of the present disclosure have been described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0055] In addition, it should be noted that, in the above specific embodiments, the various specific technical features described can be combined in any appropriate manner without conflict. To avoid unnecessary repetition, the present disclosure will not separately describe various possible combination methods.

[0056] In addition, any combination can be made between different embodiments of the present disclosure as long as it does not violate the idea of the present disclosure, and it should also be regarded as the content disclosed by the present disclosure.

Claims

1. A waste ternary lithium battery recycling and reuse device, comprising a crusher (100), a crushing roller (110) rotatably arranged inside the crusher (100), and a crushing plate (120) arranged inside the crusher (100) and used in conjunction with the crushing roller (110), characterized in that: A guide hopper (130) is installed inside the crusher (100), and a conveyor belt (131) is rotatably installed below the guide hopper (130). The guide hopper (130) and the conveyor belt (131) are used in conjunction with each other to uniformly and continuously convey the lithium batteries accumulated in the guide hopper (130) to between the crushing roller (110) and the crushing plate (120) for crushing. A crushing assembly is arranged outside the crushing roller (110), and a gas hole (160) for injecting nitrogen is opened on the side of the crushing assembly. A gas supply assembly is arranged inside the crushing roller (110), and the gas supply assembly is connected to the gas hole (160).

2. The waste ternary lithium battery recycling and reuse equipment according to claim 1 is characterized in that: The upper end of the crusher (100) is connected to a feed hopper (101), and a cover plate (102) is rotatably provided at the end of the feed hopper (101). The lower end of the crusher (100) is connected to a discharge hopper (103), and a baffle (104) is rotatably provided at the lower end of the discharge hopper (103). The number of baffles (104) is set to two, and the two baffles (104) are respectively located on both sides of the discharge hopper (103).

3. The waste ternary lithium battery recycling and reuse equipment according to claim 2 is characterized in that: Sleeve rods (105) are respectively installed on both sides of the discharge hopper (103), and the sleeve rods (105) are configured as arc-shaped rods. Insertion rods (106) are respectively installed on the outer sides of the two baffles (104). The insertion rods (106) are used in conjunction with the sleeve rods (105). The two insertion rods (106) are respectively slidably inserted into the two sleeve rods (105). The inner sides of the sleeve rods (105) are each provided with a first spring (107). The two ends of the first spring (107) are respectively connected to the inner wall and the outer wall of the sleeve rod (105). The ends of the insertion rod (106) are connected, and handles (108) are installed on the outside of the baffles (104). A storage box (109) is arranged below the discharge hopper (103), and the storage box (109) is used to store crushed ternary lithium battery materials. In an initial state, the two baffles (104) are on the same horizontal plane, and the two baffles (104) close the lower end of the discharge hopper (103). Nitrogen is injected into the inner cavity of the crusher (100), so that the lithium battery is crushed in an oxygen-deficient environment.

4. The waste ternary lithium battery recycling and reuse equipment according to claim 1 is characterized in that: A motor (140) is arranged outside the crusher (100); a crushing shaft (141) is installed at the end of the crushing roller (110); a first belt pulley (142) is arranged on the output shaft sleeve of the motor (140); a second belt pulley (143) is sleeved on the end of the crushing shaft (141); and a first transmission belt (144) is sleeved between the first belt pulley (142) and the second belt pulley (143); A conveying roller (145) is rotatably inserted into the side of the crusher (100), the number of the conveying rollers (145) is set to two, the conveying belt (131) is jointly sleeved between the two conveying rollers (145), a conveying shaft (146) is installed at the end of one of the conveying rollers (145), a third belt pulley (147) is sleeved in the middle of the crushing shaft (141), a fourth belt pulley (148) is sleeved at the end of the conveying shaft (146), and a second transmission belt (149) is jointly sleeved between the third belt pulley (147) and the fourth belt pulley (148).

5. The waste ternary lithium battery recycling and reuse equipment according to claim 1 is characterized in that: The distance between the bottom of the guide hopper (130) and the conveyor belt (131) is less than the diameter of a cylindrical ternary lithium battery, and a discharge port (150) is provided on a side of the lower end of the guide hopper (130) close to the crushing plate (120), the height of the discharge port (150) is greater than the diameter of a cylindrical ternary lithium battery, and the height of the discharge port (150) is less than the sum of the diameters of two cylindrical ternary lithium batteries.

6. The waste ternary lithium battery recycling and reuse equipment according to claim 4 is characterized in that: The number of the crushing assemblies is set to be several, and the several crushing assemblies are evenly arranged on the outside of the crushing roller (110); a groove (170) for use with the crushing assemblies is provided on a side of the crushing plate (120) close to the crushing roller (110); the number of the grooves (170) is set to be several, and the several crushing assemblies located in a circle outside the crushing roller (110) are alternately inserted into the corresponding grooves (170); The crushing assembly comprises a base (171) mounted on the outside of the crushing roller (110) and a crushing head (172) movably arranged at the end of the base (171); the air hole (160) is opened in the side wall of the base (171); the air inlet end of the air hole (160) is arranged in the base (171); the air outlet end of the air hole (160) is arranged at the end of the base (171); the air outlet end of the air hole (160) is provided with a closing sheet (173); the closing sheet (173) is set as a rubber sheet; and a "cross" crack is provided in the middle of the closing sheet (173).

7. The waste ternary lithium battery recycling and reuse equipment according to claim 6 is characterized in that: The air delivery component comprises an air cavity (174) and an air channel (175) opened inside the crushing roller (110); the number of the air channels (175) is the same as the number of the crushing components; one end of the air channels (175) is in common communication with the air cavity (174), and the other end of the air channels (175) is respectively in communication with the corresponding crushing components.

8. The waste ternary lithium battery recycling and reuse equipment according to claim 7 is characterized in that: A nitrogen generator (180) is arranged outside the crusher (100), a gas tank (181) is arranged on the side of the nitrogen generator (180), an air pipe (182) is connected between the nitrogen generator (180) and the gas tank (181), the crushing shaft (141) is arranged in a hollow tubular shape, one end of the crushing shaft (141) is connected to the air cavity (174), the other end of the crushing shaft (141) and the gas tank (181) are also connected to the air pipe (182), one end of the air pipe (182) located between the crushing shaft (141) and the gas tank (181) is connected to the gas tank (181), and the other end is rotatably connected to the end of the crushing shaft (141).

9. The waste ternary lithium battery recycling and reuse equipment according to claim 6, characterized in that: The crushing assembly comprises the base (171) mounted on the outside of the crushing roller (110), a slider (190) slidably plugged into the end of the base (171), and the crushing head (172) slidably plugged into the end of the slider (190); a second spring (191) is arranged on the inside of the slider (190); two ends of the second spring (191) are respectively connected to the crushing head (172) and the inner wall of the slider (190); a blocking piece (192) is mounted on the outside of the slider (190); the blocking piece (192) is slidably fitted with the inner wall of the base (171); in an initial state, the blocking piece (192) covers the air inlet end of the air hole (160) to seal the air inlet end of the air hole (160).

10. The waste ternary lithium battery recycling and reuse equipment according to claim 9, characterized in that: A sliding groove (193) is provided on the side wall of the slider (190), and a shaft (194) is slidably inserted in the sliding groove (193). One end of the shaft (194) is connected to the inner wall of the base (171), and the other end of the shaft (194) is located in the slider (190) and is rotatably sleeved with a gear (195). A first rack (196) is installed at the end of the crushing head (172) located inside the slider (190), and the first rack (196) meshes with one side of the gear (195). A second rack (197) is installed on the inner wall of the slider (190), and the second rack (197) meshes with the other side of the gear (195).

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