Waste lithium storage battery recycling treatment equipment and treatment method

Abstract

The invention relates to the technical field of lithium battery recycling, in particular to waste lithium storage battery recycling treatment equipment and method.The waste lithium storage battery recycling treatment equipment comprises a machine shell, a feeding cavity is formed in the machine shell, an inclined feeding channel is arranged at the bottom of the feeding cavity, the feeding channel is connected with a sorting channel, and the sorting channel comprises a plurality of sorting units arranged from top to bottom; the sorting unit is used for sorting batteries according to different sizes and is in butt joint with a clamping assembly for grabbing the batteries in a matched mode, the clamping assembly is connected with a rotating piece, the rotating piece is connected with a swing arm, a rotating cavity is formed in the end of the swing arm, the rotating piece is installed in the rotating cavity, and a pneumatic piece is fixedly installed in the rotating cavity. The pneumatic part comprises an air cavity fixedly installed in the rotating cavity, the air cavity is connected with a barometer used for monitoring the air pressure of the air cavity, an air pressure change curve is drawn according to the barometer, and when the wave trough size of the air pressure change curve is not changed, it is judged that the electrolyte is completely thrown away. Whether the battery electrolyte is cleaned up can be accurately monitored, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery recycling, and in particular to a waste lithium battery recycling and processing device and a processing method. Background Art

[0002] Batteries are important energy storage and supply components, widely used in various devices. Among them, lithium batteries are more environmentally friendly and safer because they do not contain toxic heavy metals such as mercury, cadmium, and lead, and their application is gradually becoming more widespread. Lithium batteries are mainly composed of positive electrode materials, negative electrode materials, electrolytes, diaphragms, and shells. When recycled, improper recycling will also cause pollution.

[0003] In response to the above problems, the Chinese invention patent with application number CN202210056586.8 provides a waste lithium battery recycling and processing device, including a liquid guide frame, a support seat, a clamping assembly, a driving assembly, etc.; a support seat is fixedly installed above the liquid guide frame, a clamping assembly is arranged on the front side of the support seat, and the driving assembly is arranged on the support seat. Through the cooperation of the clamping plate and the clamping spring, the clamping plate can clamp the lithium battery to be recycled above the placement plate, and multiple lithium batteries to be recycled can be placed above the placement plate, which is convenient for recycling the lithium batteries to be recycled in batches.

[0004] However, the applicant has found that the prior art has at least the following problems: Regarding the cleaning of the electrolyte in the battery, the existing technology cannot determine whether the electrolyte has been cleaned, which may result in the electrolyte in some batteries not being cleaned. It may also be due to setting a long cleaning time, resulting in the electrolyte being cleaned but still in the cleaning process, reducing work efficiency. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a waste lithium battery recycling and processing equipment and processing method to solve the problem that the prior art cannot determine whether the electrolyte is cleaned.

[0006] Based on the above purpose, the present invention provides a waste lithium battery recycling and processing equipment, including a casing, a feeding chamber is provided inside the casing, an inclined feeding channel is provided at the bottom of the feeding chamber, the feeding channel is connected to a sorting channel, the sorting channel includes a plurality of sorting units arranged from top to bottom, and is used to sort batteries according to different sizes, the sorting units are matched and docked with a clamping assembly for grabbing the batteries, the clamping assembly is connected to a rotating part, the rotating part is connected to a swing arm, a rotating chamber is provided at the end of the swing arm, the rotating part is installed in the rotating chamber, a pneumatic part is fixedly installed in the rotating chamber, the pneumatic part includes an air chamber fixedly installed in the rotating chamber, the air chamber is connected to an air pump, the air chamber includes a first piston chamber and a second piston chamber, and the first piston chamber is installed with The driving assembly is used to drive the rotating part to rotate a certain angle during inflation and deflation. The driving assembly is connected to a cylindrical end. A torque member is connected between the cylindrical end and the rotating chamber, so that the rotating part has a tendency to rotate. A limiting assembly is pneumatically connected to the second piston chamber for controlling whether the rotating part can rotate. The rotating part includes a connecting column connected to the clamping assembly. The connecting column is connected to an elastically retractable connecting rod. The connecting rod is connected to the cylindrical end. The limiting assembly is connected to the telescopic section of the connecting rod. The telescopic connection of the connecting rod drives the limiting assembly to move, thereby changing the internal air pressure of the air chamber. The air chamber is connected to a barometer for monitoring the air pressure of the air chamber. An air pressure change curve is drawn according to the barometer. When the trough size of the air pressure change curve remains unchanged, it is determined that the electrolyte has been discarded.

[0007] Optionally, a first liquid release chamber and a second liquid release chamber are respectively provided on both sides of the sorting channel, and a liquid storage chamber is connected to the bottom of the first liquid release chamber and the second liquid release chamber. The sorting channel includes a plurality of sorting units arranged from top to bottom, and the sorting unit includes a power inclined plate that can move up and down, which is used to transport the battery upward, and a baffle and a guide plate are provided in the opposite directions of the inclined surface of the power inclined plate, and a screening port is provided between the baffle and the guide plate. The sizes of the screening ports of the plurality of sorting units decrease from top to bottom, corresponding to batteries of different models, and the screening port is used to connect the upper and lower adjacent sorting units. A plurality of collection ports are provided on the side wall of the sorting channel, and the first liquid release chamber and the second liquid release chamber are connected to each other. Multiple sets of swing shafts are installed in it, the swing shafts are connected with swing arm assemblies, and the swing arm assemblies are connected with clamping assemblies for storing and clamping batteries that roll out from the collection port. Multiple sets of drill seats are slidably installed on the side walls of the first liquid release chamber and the second liquid release chamber, and multiple sets of drill bits are arranged in an array on the drill seat. The side of the drill seat is meshed with a propulsion gear for drilling holes in the end face of the battery. Multiple sets of discharge ports are also provided on the first liquid release chamber and the second liquid release chamber, and the discharge ports correspond to the collection ports one by one, and are symmetrically arranged with the swing shaft as the symmetry axis. The discharge ports are connected with the discharge chamber, and an inclined discharge channel is installed at the bottom of the discharge chamber for rolling out the battery.

[0008] Optionally, a guide opening is opened on the side wall of the feeding chamber, a driven rack is installed in the guide opening, the driven rack is fixedly connected to the power inclined plate, and the driven rack is meshedly connected to the driving gear.

[0009] Optionally, the clamping assembly includes two groups of clamping units arranged up and down, and a clamping space is formed between the two groups of clamping units for accommodating batteries. The clamping units include two groups of clamping plates, and the clamping plates are in the shape of right-angle plates. An electric adjustment rod is connected between the two groups of clamping plates for adapting to the axial height of the battery. Limiting plates are also installed at the ends of the two groups of clamping plates to limit the batteries from rolling out. Right-angle connecting plates are respectively installed on the two groups of clamping units, and a sleeve plate is connected between the two groups of right-angle connecting plates. The sleeve plate is fixedly connected to an electric telescopic rod, and both ends of the electric telescopic rod are respectively fixedly connected to the two groups of right-angle connecting plates for driving one end of the right-angle connecting plate to extend and retract in the sleeve plate to accommodate batteries of different diameters.

[0010] Optionally, the sleeve plate is connected to a rotating member, which is rotatably connected to a swing arm. In the initial state, the rotating member enables the clamping assembly to have a certain inclination, so that the battery rolls toward the limit plate and gathers. Optionally, the drive assembly includes a threaded piston adapted to be installed in the first piston cavity, the threaded piston being threadedly connected to a threaded rod, one end of the threaded rod being rotatably connected to a rotating seat, the rotating seat being fixedly installed in the air cavity through an inner connecting rod, the other end of the threaded rod extending to the interior of the cylindrical end, a connecting groove being provided inside the cylindrical end, the threaded rod being fixedly connected to the inner wall of the connecting groove through a linkage rod, a limiting guide groove being provided on the inner wall of the first piston cavity, and a limiting strip matching the limiting guide groove being provided on the side wall of the threaded piston, thereby limiting the threaded piston to perform piston movement only in the first piston cavity.

[0011] Optionally, the limiting assembly includes an extrusion piston adapted to be installed in the second piston chamber, the extrusion piston is connected to a piston rod, the end of the piston rod is connected to a telescopic limit rod for limiting the rotation of the rotating part, a limiting groove is provided on the connecting rod, the bottom of the limiting groove is inclined, and is used to drive the telescopic limit rod to move out of the limiting groove when the extrusion piston moves outward, thereby releasing the restriction on the rotation of the rotating part.

[0012] Optionally, the connecting rod includes an elastic telescopic cylinder, which is fixedly connected to the cylinder end, a return spring is installed in the elastic telescopic cylinder, the return spring is connected to the telescopic square rod, a limit groove is opened on the telescopic square rod, and the telescopic square rod is fixedly connected to the connecting column.

[0013] Optionally, a material discharge inclined plate is provided between the upper and lower adjacent clamping assemblies, and the material discharge inclined plate is obliquely installed on the side walls of the first liquid release chamber and the second liquid release chamber respectively. A gap is provided at the inclined bottom end of the material discharge inclined plate for the electrolyte to leak and collect into the liquid storage chamber.

[0014] The present invention also provides a method for recycling waste lithium batteries, comprising the following steps: Step 1: Introduce the battery placed horizontally in the loading chamber into the sorting channel; Step 2: Multiple sorting units distributed up and down in the sorting channel sort the batteries according to their diameters and import them into different clamping components; Step 3: Drilling holes in the batteries in different clamping components; Step 4: driving the swing arm to swing and drying the battery electrolyte in the clamping assembly; Step 5: Monitor the air pressure change in the air cavity and draw a change curve. When the trough value in the drawn curve no longer changes, it is determined that the electrolyte has been completely thrown out; Step 6: Drive the swing arm to swing, send the clamping assembly to the discharge port, inflate the air cavity, tilt the end of the clamping assembly at a certain angle, drive the battery to roll from the clamping assembly to the discharge port and finally fall into the discharge channel.

[0015] Beneficial effects of the invention: The invention provides a waste lithium battery recycling and processing equipment and a processing method. During the battery recycling and processing, the batteries are arranged in sequence on the feeding channel, and the power inclined plate moves upward to the screening port. When the battery diameter on the power inclined plate is smaller than the longitudinal height of the screening port, the battery rolls from the power inclined plate into the screening port under the action of gravity, and falls into the sorting unit below. During the electrolyte throwing-out process, the swing arm swings back and forth, and due to the action of centrifugal force, a pulling force is applied to the connecting column, thereby pulling the telescopic square rod, and the telescopic square rod pulls the telescopic limit rod, and then pulls the extrusion piston, so that the pressure in the air cavity changes continuously. In a swinging cycle, the pressure decreases to a valley value and then increases, and the cycle continues. As the electrolyte is continuously thrown out, the centrifugal force gradually decreases, so the valley value of the pressure gradually increases, until the electrolyte is completely thrown out, the valley value of the wave line drawn by the pressure no longer changes, and it is determined that the electrolyte has been completely thrown out at this time, which can ensure that the electrolyte is completely thrown out while ensuring work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of a waste lithium battery recycling and processing device according to an embodiment of the present invention; Figure 2 A partial schematic diagram of a waste lithium battery recycling and processing device according to an embodiment of the present invention Figure 1 ; Figure 3 A partial schematic diagram of a waste lithium battery recycling and processing device according to an embodiment of the present invention Figure 2 ; Figure 4 This is a schematic diagram of a clamping assembly of a waste lithium battery recycling and processing device according to an embodiment of the present invention; Figure 5 A schematic diagram of a swing arm of a waste lithium battery recycling and processing device according to an embodiment of the present invention Figure 1 ; Figure 6 A schematic diagram of a swing arm of a waste lithium battery recycling and processing device according to an embodiment of the present invention Figure 2 ; Figure 7 for Figure 6 A schematic diagram of the enlarged local structure of part A; Figure 8 A partial schematic diagram of a waste lithium battery recycling and processing device according to an embodiment of the present invention Figure 3 ; Fig. 9 The present invention is a schematic diagram of a rotating part of a waste lithium battery recycling and processing device according to an embodiment of the present invention.

[0018] The markings in the figure are: 101, housing; 102, first liquid release chamber; 103, discharge chamber; 104, discharge channel; 105, second liquid release chamber; 106, liquid storage chamber; 107, unloading inclined plate; 201, loading chamber; 202, loading channel; 203, power inclined plate; 204, guide port; 205, driven rack; 206, driving gear; 207, baffle; 208, screening port; 209, guide plate; 210, collection port; 211, sorting channel; 301, swing shaft; 302, clamping assembly; 303, discharge port; 304, clamping plate; 305, electric adjustment rod; 306, limit plate; 307, right-angle connecting plate; 308, electric telescopic rod; 309, sleeve plate; 310, rotation Parts; 311, swing arm; 312, rotating chamber; 3121, elastic telescopic cylinder; 3122, telescopic square rod; 313, pneumatic parts; 314, torque parts; 3101, connecting column; 3102, connecting rod; 3103, limiting groove; 3104, cylinder end; 3105, connecting groove; 3131, air cavity; 3132, fixed column; 3133, first piston cavity; 3134, inner connecting rod; 3135, rotating seat; 3136, threaded piston; 3137, threaded rod; 3138, linkage rod; 3139, second piston cavity; 3140, extrusion piston; 3141, piston rod; 3142, telescopic limiting rod; 401, drill seat; 402, drill; 403, propulsion gear. DETAILED DESCRIPTION

[0019] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0020] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] like Figures 1 to 9 As shown, a specific embodiment of the present invention provides a waste lithium battery recycling and processing device, including a housing 101, a loading chamber 201 is provided inside the housing 101, an inclined loading channel 202 is provided at the bottom of the loading chamber 201, the loading channel 202 is connected to a sorting channel 211, a first liquid release chamber 102 and a second liquid release chamber 105 are provided on both sides of the sorting channel 211, and a liquid storage chamber 106 is connected to the bottom of the first liquid release chamber 102 and the second liquid release chamber 105. The sorting channel 211 includes a plurality of sorting units arranged from top to bottom, and the sorting unit includes a power inclined plate 203 that can move up and down and is used to transport the battery upward. A baffle 207 and a guide plate 209 are provided in the opposite direction of the inclined surface of the power inclined plate 203, and a screening port 208 is provided between the baffle 207 and the guide plate 209. The sizes of the screening ports 208 of the plurality of sorting units decrease from top to bottom, respectively, and the screening ports 208 are used to connect the upper and lower adjacent sorting units corresponding to different types of batteries. , a plurality of collection ports 210 are provided on the side wall of the sorting channel 211, a plurality of swing shafts 301 are installed in the first liquid release chamber 102 and the second liquid release chamber 105, the swing shaft 301 is connected to a swing rod assembly, the swing rod assembly is connected to a clamping assembly 302, and is used to receive and clamp the batteries rolled out from the collection port 210, a plurality of drill seats 401 are slidably installed on the side wall of the first liquid release chamber 102 and the second liquid release chamber 105, and a plurality of drill seats 401 are arranged in an array The drill bit 402 and the drill bit seat 401 are meshedly connected with a propulsion gear 403 on the side for drilling holes in the end face of the battery. The first liquid release chamber 102 and the second liquid release chamber 105 are also provided with a plurality of discharge ports 303. The discharge ports 303 correspond to the collection ports 210 one by one and are symmetrically arranged with the swing axis 301 as the symmetry axis. The discharge ports 303 are connected with the discharge chamber 103. An inclined discharge channel 104 is installed at the bottom of the discharge chamber 103 for rolling out the battery.

[0022] During battery recycling, the battery is placed horizontally in the loading chamber 201. Since the battery is cylindrical, it is arranged in sequence on the loading channel 202. The battery at the front of the loading channel 202 rolls to the top sorting unit and falls on the power inclined plate 203. Then the power inclined plate 203 moves upward to the screening port 208. It should be noted that at this time, the power inclined plate 203 faces one side of the loading channel 202, and always blocks and limits the batteries on the loading channel 202. When the diameter of the battery on the power inclined plate 203 is smaller than the longitudinal height of the screening port 208, the battery rolls from the power inclined plate 203 to the screening port 208 under the action of gravity, and falls into the sorting unit below. When the diameter of the battery is larger than the longitudinal height of the screening port 208, as the power inclined plate 203 continues to rise, the battery is sent to the guide plate 209. The battery rolls along the guide plate 209 to the collection port 210 under the action of gravity. At this time, the clamping assembly 302 stays at the collection port 210, and the batteries roll into the clamping assembly 302. When the batteries in the clamping assembly 302 are full, the clamping assembly 302 clamps and fixes the batteries, and the propulsion gear 403 drives the drill seat 401 to move. Multiple drills 402 start working, corresponding to the multiple batteries on the clamping assembly 302, and punch holes at their ends. After the drilling is completed, the drill seat 401 retreats, and the swing shaft 301 drives the clamping assembly 302 to swing back and forth, thereby using centrifugal force to quickly throw out the electrolyte in the battery. After the throwing is completed, the swing shaft 301 drives the clamping assembly 302 to swing to the discharge port 303, and the clamping assembly 302 releases the clamping of the battery. The clamping assembly 302 deflects a little angle, so that the batteries inside it roll out from the discharge port 303, and the batteries fall and gather on the discharge channel 104, and the electrolyte is recovered in the liquid storage chamber 106, thereby realizing the recycling of lithium batteries of different models and improving the recycling efficiency.

[0023] In some optional specific embodiments, such as Figure 8 As shown, a guide opening 204 is provided on the side wall of the loading chamber 201, a driven rack 205 is installed in the guide opening 204, the driven rack 205 is fixedly connected to the power inclined plate 203, and the driven rack 205 is meshedly connected with a driving gear 206. The driving gear 206 drives the power inclined plate 203 to move up and down.

[0024] In some optional specific embodiments, such as Figure 4As shown, the clamping assembly 302 includes two groups of clamping units arranged up and down, and a clamping space is formed between the two groups of clamping units for accommodating batteries. The clamping units include two groups of clamping plates 304, and the clamping plates 304 are in the shape of right-angle plates. An electric adjustment rod 305 is connected between the two groups of clamping plates 304 to adapt to the axial height of the battery. Limiting plates 306 are also installed at the ends of the two groups of clamping plates 304 to limit the batteries from rolling out. Right-angle connecting plates 307 are respectively installed on the two groups of clamping units, and a sleeve plate 309 is connected between the two groups of right-angle connecting plates 307. The sleeve plate 309 is fixedly connected to an electric telescopic rod 308. The two ends of the electric telescopic rod 308 are respectively fixedly connected to the two groups of right-angle connecting plates 307, and are used to drive one end of the right-angle connecting plate 307 to extend and retract in the sleeve plate 309 to adapt to batteries of different diameters. During use, the batteries enter the clamping space from the collecting port 210 at a certain initial velocity until they roll to the end and are blocked by the limit plate 306. The batteries that roll in are arranged one by one. When a certain number of batteries are loaded into the clamping space, the electric adjustment rod 305 and the electric telescopic rod 308 are shortened to clamp and fix the batteries therein.

[0025] In some optional specific embodiments, such as Figure 4 As shown, the sleeve plate 309 is connected to a rotating member 310, and the rotating member 310 is rotatably connected to a swing arm 311. In the initial state, the rotating member 310 makes the clamping assembly 302 have a certain inclination, so that the batteries roll toward the limiting plate 306 to gather. It is convenient for the batteries to be arranged and gathered in the clamping assembly 302.

[0026] In some optional specific embodiments, such as Figures 5 to 7 As shown, a rotating cavity 312 is provided at the end of the swing arm 311, and the rotating member 310 is adapted to be installed in the rotating cavity 312. A torque member 314 is connected between the end of the rotating member 310 and the inner wall of the rotating cavity 312. The torque member 314 makes the rotating member 310 have a tendency to return to the initial state, so that the clamping assembly 302 has a certain inclination. A pneumatic member 313 is also fixedly installed in the rotating cavity 312. The pneumatic member 313 is dynamically connected to the rotating member 310, and is used to swing the clamping assembly 302 to the discharge port 303, drive the rotating member 310 to rotate, and the clamping assembly 302 is reversely deflected by a certain angle, so as to drive the battery on the clamping assembly 302 to roll out from the discharge port 303.

[0027] In some optional specific embodiments, such as Figure 7As shown, the rotating member 310 includes a connecting column 3101 connected to the clamping assembly 302, the connecting column 3101 is connected to a connecting rod 3102, the connecting rod 3102 is connected to a cylindrical end 3104, the pneumatic member 313 is installed between the connecting column 3101 and the cylindrical end 3104, the pneumatic member 313 includes an air cavity 3131, the air cavity 3131 is connected to an air pump for controlling the air pressure inside the air cavity 3131, the air cavity 3131 is fixedly installed in the rotating cavity 312 through a fixing column 3132, the air cavity 3131 is connected to a first piston cavity 3133, a threaded piston 3136 is adapted to be installed in the first piston cavity 3133, and the threaded piston 3136 is adapted to be installed in the first piston cavity 3133. A threaded rod 3137 is threadedly connected, one end of the threaded rod 3137 is rotatably connected to a rotating seat 3135, the rotating seat 3135 is fixedly installed in the air cavity 3131 through an inner connecting rod 3134, the other end of the threaded rod 3137 extends to the inside of the cylindrical end 3104, a connecting groove 3105 is provided inside the cylindrical end 3104, the threaded rod 3137 is fixedly connected to the inner wall of the connecting groove 3105 through a linkage rod 3138, a limiting guide groove is provided on the inner wall of the first piston cavity 3133, and a limiting strip matched with the limiting guide groove is provided on the side wall of the threaded piston 3136, so as to limit the threaded piston 3136 to only do piston movement in the first piston cavity 3133.

[0028] By filling and releasing air into the air cavity 3131, the threaded piston 3136 moves, and the movement of the threaded piston 3136 drives the threaded rod 3137 to rotate. The threaded rod 3137 rotates a certain angle, driving the cylindrical end 3104 to rotate, and then driving the connecting column 3101 to rotate, and finally driving the clamping assembly 302 to rotate a certain angle.

[0029] In some optional specific embodiments, such as Figure 7 and Fig. 9As shown, the air cavity 3131 is connected to the second piston cavity 3139, and the second piston cavity 3139 is adapted to install an extrusion piston 3140. The extrusion piston 3140 is connected to the piston rod 3141, and the end of the piston rod 3141 is connected to the telescopic limit rod 3142 for limiting the rotation of the rotating member 310. The connecting rod 3102 is provided with a limit groove 3103, and the bottom of the limit groove 3103 is inclined, which is used to drive the telescopic limit rod 3142 to move out of the limit groove 3103 when the extrusion piston 3140 moves outward, thereby releasing the restriction on the rotation of the rotating member 310. During use, the rotating member 310 is in the initial state, and the telescopic limit rod 3142 is inserted into the limit groove 3103 to limit the rotation of the rotating member 310 and ensure the stability of the device. When unloading is required, air is inflated into the air cavity 3131, so that the telescopic limit rod 3142 moves out of the limit groove 3103, thereby releasing the rotation restriction of the rotating member 310. The inflation continues, and the threaded rod 3137 rotates to drive the rotating member 310 to rotate. After the action is completed, the air cavity 3131 returns to the initial air pressure. Under the action of the torque member 314, the rotating member 310 is reset, and the telescopic limit rod 3142 re-enters the limit groove 3103.

[0030] In some optional specific embodiments, such as Figure 7 and Fig. 9 As shown, the connecting rod 3102 includes an elastic telescopic cylinder 3121, which is fixedly connected to the cylindrical end 3104, a return spring is installed in the elastic telescopic cylinder 3121, and the return spring is connected to the telescopic square rod 3122. The limiting groove 3103 is opened on the telescopic square rod 3122, and the telescopic square rod 3122 is fixedly connected to the connecting column 3101. The air cavity 3131 is connected to a barometer, which is used to monitor the air pressure inside the air cavity 3131 when the swing arm 311 swings to throw out the battery electrolyte, and draw an air pressure change curve. When the trough size of the air pressure change curve remains unchanged, it is determined that the electrolyte is thrown out clean.

[0031] During the electrolyte ejection process, the swing arm 311 swings back and forth, and the centrifugal force exerts a pulling force on the connecting column 3101, thereby pulling the telescopic square rod 3122, and the telescopic square rod 3122 pulls the telescopic limit rod 3142, and then pulls the extrusion piston 3140, so that the pressure in the air cavity 3131 changes continuously. In one swinging cycle, the pressure decreases to a valley value and then increases, and the cycle continues. As the electrolyte is continuously ejected, the centrifugal force gradually decreases, and thus the valley value of the pressure gradually increases, until the electrolyte is completely ejected, the valley value of the wave line drawn by the pressure no longer changes, and it is determined that the electrolyte has been completely ejected, which can ensure that the electrolyte is completely ejected while ensuring work efficiency.

[0032] In some optional specific embodiments, such as Figure 2As shown, a material discharge inclined plate 107 is arranged between the upper and lower adjacent clamping assemblies 302. The material discharge inclined plate 107 is obliquely installed on the side walls of the first liquid release chamber 102 and the second liquid release chamber 105 respectively. A gap is provided at the inclined bottom end of the material discharge inclined plate 107 for the electrolyte to leak and collect into the liquid storage chamber 106.

[0033] The present invention also provides a method for recycling and treating waste lithium batteries, comprising: Step 1: introducing the battery placed horizontally in the loading chamber 201 into the sorting channel 211; Step 2: The multiple sorting units distributed up and down in the sorting channel 211 sort the batteries according to their diameters and introduce them into different clamping assemblies 302; Step 3: drilling holes in the batteries in different clamping assemblies 302; Step 4: driving the swing arm 311 to swing and drying the battery electrolyte in the clamping assembly 302; Step 5: monitor the air pressure change in the air cavity 3131 and draw a change curve. When the trough value of the drawn curve no longer changes, it is determined that the electrolyte has been completely thrown out; Step 6: Drive the swing arm 311 to swing, send the clamping assembly 302 to the discharge port 303, inflate the air cavity 3131, tilt the end of the clamping assembly 302 at a certain angle, drive the battery to roll from the clamping assembly 302 to the discharge port 303 and finally fall into the discharge channel 104.

[0034] The working principle of the present invention is as follows: when the battery is recycled, it is placed horizontally in the loading chamber 201. Since the battery is cylindrical, it is arranged in sequence on the loading channel 202. The battery at the front of the loading channel 202 rolls to the uppermost sorting unit and falls on the power inclined plate 203. Then the power inclined plate 203 moves upward to the screening port 208. It should be noted that at this time, the power inclined plate 203 faces one side of the loading channel 202, and always blocks and limits the batteries on the loading channel 202. When the diameter of the battery on the power inclined plate 203 is smaller than the longitudinal height of the screening port 208, the battery rolls from the power inclined plate 203 to the screening port 208 under the action of gravity, and falls into the sorting unit below. When the diameter of the battery is larger than the longitudinal height of the screening port 208, as the power inclined plate 203 continues to rise, the battery is sent to the guide plate 209. The battery rolls along the guide plate 209 to the collection port 210 under the action of gravity. The clamping assembly 302 stays at the collection port 210, and the battery rolls into the clamping assembly 302. When the battery in the clamping assembly 302 is full, the clamping assembly 302 clamps and fixes the battery, and the propulsion gear 403 drives the drill seat 401 to move. The multiple drills 402 start working and respectively correspond to the multiple batteries on the clamping assembly 302 to punch holes at their ends. After the drilling is completed, the drill seat 401 retreats, and the swing shaft 301 drives the clamping assembly 302 to swing back and forth. , thereby using centrifugal force to quickly throw out the electrolyte in the battery. After the throwing is completed, the swing shaft 301 drives the clamping assembly 302 to swing to the discharge port 303, and the clamping assembly 302 releases the clamping of the battery. The clamping assembly 302 deflects a little angle, so that the battery inside it rolls out from the discharge port 303, and the battery falls and gathers on the discharge channel 104, and the electrolyte is recovered in the liquid storage chamber 106, thereby realizing the recycling of lithium batteries of different models and improving the recycling efficiency.

[0035] During the electrolyte ejection process, the swing arm 311 swings back and forth, and the centrifugal force exerts a pulling force on the connecting column 3101, thereby pulling the telescopic square rod 3122, and the telescopic square rod 3122 pulls the telescopic limit rod 3142, and then pulls the extrusion piston 3140, so that the pressure in the air cavity 3131 changes continuously. In one swinging cycle, the pressure decreases to a valley value and then increases, and the cycle continues. As the electrolyte is continuously ejected, the centrifugal force gradually decreases, and thus the valley value of the pressure gradually increases, until the electrolyte is completely ejected, the valley value of the wave line drawn by the pressure no longer changes, and it is determined that the electrolyte has been completely ejected, which can ensure that the electrolyte is completely ejected while ensuring work efficiency.

[0036] It should be understood by those skilled in the art that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may also be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0037] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A waste lithium battery recycling and processing device, comprising a housing (101), a feeding chamber (201) is provided inside the housing (101), an inclined feeding channel (202) is provided at the bottom of the feeding chamber (201), the feeding channel (202) is connected to a sorting channel (211), the sorting channel (211) comprises a plurality of sorting units arranged from top to bottom, and is used to sort batteries according to different sizes, characterized in that: The sorting unit is docked with a clamping assembly (302) for grabbing batteries. The clamping assembly (302) is connected to a rotating member (310). The rotating member (310) is connected to a swing arm (311). A rotating cavity (312) is provided at the end of the swing arm (311). The rotating member (310) is installed in the rotating cavity (312). A pneumatic member (313) is fixedly installed in the rotating cavity (312). The pneumatic member (313) includes an air cavity (3131) fixedly installed in the rotating cavity (312). The air cavity (3131) is connected to an air pump. The air cavity (3131) includes a first piston cavity (3133) and a second piston cavity (3139). A driving assembly is installed in the first piston cavity (3133) for driving the rotating member (310) to rotate a certain angle when inflating or deflation. The driving assembly is connected to a cylindrical end (3104). The cylindrical end (3104) is connected to the rotating member (3104). A torque member (314) is connected between the cavities (312) so that the rotating member (310) has a tendency to rotate. A limiting component is pneumatically connected in the second piston cavity (3139) for controlling whether the rotating member (310) can rotate. The rotating member (310) comprises a connecting column (3101) connected to the clamping component (302). The connecting column (3101) is connected to an elastically retractable connecting rod (3102). The connecting rod (3102) is connected to the cylindrical end (3104). The limiting component is connected to the telescopic section of the connecting rod (3102). The telescopic movement of the connecting rod (3102) drives the limiting component to move, thereby changing the internal air pressure of the air cavity (3131). The air cavity (3131) is connected to a barometer for monitoring the air pressure of the air cavity (3131). A pressure change curve is drawn according to the barometer. When the trough size of the pressure change curve remains unchanged, it is determined that the electrolyte has been completely flushed out.

2. A waste lithium battery recycling and processing equipment according to claim 1, characterized in that: A first liquid release chamber (102) and a second liquid release chamber (105) are respectively provided on both sides of the sorting channel (211). The first liquid release chamber (102) and the second liquid release chamber (105) are connected to a liquid storage chamber (106) at their bottoms. The sorting channel (211) comprises a plurality of sorting units arranged from top to bottom. The sorting units comprise a power inclined plate (203) that can move up and down and is used to transport batteries upward. A baffle plate (207) and a guide plate (209) are provided in opposite directions of the inclined surfaces of the power inclined plate (203). A screening port (208) is provided between the baffle plate (207) and the guide plate (209). The sizes of the screening ports (208) of the plurality of sorting units decrease from top to bottom. The screening ports (208) are used to connect the upper and lower adjacent sorting units corresponding to different types of batteries. A plurality of collection ports (210) are provided on the side wall of the sorting channel (211). The first liquid release chamber (102) and the second liquid release chamber (105) are provided with A plurality of swing shafts (301) are connected to a swing arm assembly, and the swing arm assembly is connected to a clamping assembly (302) for storing and clamping batteries that roll out of the collection port (210). A plurality of drill bit seats (401) are slidably mounted on the side walls of the first liquid release chamber (102) and the second liquid release chamber (105). A plurality of drill bits (402) are arranged in an array on the drill bit seats (401). The side surfaces of the drill bit seats (401) are meshedly connected to a propulsion gear ( 403), used for drilling holes on the end surface of the battery, the first liquid release chamber (102) and the second liquid release chamber (105) are also provided with a plurality of discharge ports (303), the discharge ports (303) correspond to the collection ports (210) one by one, and are symmetrically arranged with the swing axis (301) as the symmetry axis, the discharge ports (303) are connected to the discharge chamber (103), and an inclined discharge channel (104) is installed at the bottom of the discharge chamber (103) for rolling out the battery.

3. A waste lithium battery recycling and processing equipment according to claim 2, characterized in that: A guide opening (204) is provided on the side wall of the loading chamber (201), a driven rack (205) is installed in the guide opening (204), the driven rack (205) is fixedly connected to the power inclined plate (203), and the driven rack (205) is meshingly connected to a driving gear (206).

4. A waste lithium battery recycling and processing equipment according to claim 1, characterized in that: The clamping assembly (302) comprises two groups of clamping units arranged in an upper and lower manner, a clamping space is formed between the two groups of clamping units for accommodating batteries, the clamping units comprise two groups of clamping plates (304), the clamping plates (304) are in the shape of right-angle plates, an electric adjustment rod (305) is connected between the two groups of clamping plates (304) for adapting to the axial height of the batteries, and limiting plates (306) are also installed at the ends of the two groups of clamping plates (304) for limiting the batteries from rolling out, right-angle connecting plates (307) are respectively installed on the two groups of clamping units, a sleeve plate (309) is connected between the two groups of right-angle connecting plates (307), an electric telescopic rod (308) is fixedly connected to the sleeve plate (309), and both ends of the electric telescopic rod (308) are respectively fixedly connected to the two groups of right-angle connecting plates (307) for driving one end of the right-angle connecting plate (307) to extend and retract in the sleeve plate (309) to adapt to batteries of different diameters.

5. A waste lithium battery recycling and processing equipment according to claim 4, characterized in that: The sleeve plate (309) is connected to a rotating member (310), and the rotating member (310) is rotatably connected to a swing arm (311). In an initial state, the rotating member (310) enables the clamping assembly (302) to have a certain inclination, so that the batteries roll and gather toward the limiting plate (306).

6. A waste lithium battery recycling and processing equipment according to claim 1, characterized in that: The drive assembly comprises a threaded piston (3136) adapted to be installed in the first piston chamber (3133); the threaded piston (3136) is threadedly connected to a threaded rod (3137); one end of the threaded rod (3137) is rotatably connected to a rotating seat (3135); the rotating seat (3135) is fixedly installed in the air chamber (3131) via an inner connecting rod (3134); the other end of the threaded rod (3137) extends into the interior of a cylindrical end (3104); a connecting groove (3105) is provided in the interior of the cylindrical end (3104); the threaded rod (3137) is fixedly connected to the inner wall of the connecting groove (3105) via a linkage rod (3138); a limiting guide groove is provided on the inner wall of the first piston chamber (3133); a limiting strip matched with the limiting guide groove is provided on the side wall of the threaded piston (3136) to limit the threaded piston (3136) to perform piston movement only in the first piston chamber (3133).

7. A waste lithium battery recycling and processing equipment according to claim 1, characterized in that: The limiting assembly comprises an extrusion piston (3140) adapted to be installed in the second piston chamber (3139); the extrusion piston (3140) is connected to a piston rod (3141); the end of the piston rod (3141) is connected to a telescopic limiting rod (3142) for limiting the rotation of the rotating member (310); a limiting groove (3103) is provided on the connecting rod (3102); the bottom of the limiting groove (3103) is inclined, and is used to drive the telescopic limiting rod (3142) to move out of the limiting groove (3103) when the extrusion piston (3140) moves outward, thereby releasing the restriction on the rotation of the rotating member (310).

8. A waste lithium battery recycling and processing equipment according to claim 1, characterized in that: The connecting rod (3102) comprises an elastic telescopic cylinder (3121), the elastic telescopic cylinder (3121) is fixedly connected to the cylindrical end (3104), a return spring is installed in the elastic telescopic cylinder (3121), the return spring is connected to the telescopic square rod (3122), a limiting groove (3103) is provided on the telescopic square rod (3122), and the telescopic square rod (3122) is fixedly connected to the connecting column (3101).

9. The waste lithium battery recycling and processing equipment according to claim 1 is characterized in that: A material discharge inclined plate (107) is provided between upper and lower adjacent clamping assemblies (302). The material discharge inclined plate (107) is respectively installed at an angle on the side walls of the first liquid release chamber (102) and the second liquid release chamber (105). A slit is provided at the inclined bottom end of the material discharge inclined plate (107) for allowing electrolyte to leak and collect in the liquid storage chamber (106).

10. A method for recycling waste lithium batteries according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: introducing the battery placed horizontally in the loading chamber (201) into the sorting channel (211); Step 2: A plurality of vertically distributed sorting units in the sorting channel (211) sort the batteries according to their diameters and introduce them into different clamping assemblies (302); Step 3: drilling holes in the batteries in different clamping assemblies (302); Step 4: driving the swing arm (311) to swing and drying the battery electrolyte in the clamping assembly (302); Step 5: monitor the change of the air pressure in the air cavity (3131) and draw a change curve. When the trough value of the drawn curve no longer changes, it is determined that the electrolyte has been completely thrown out; Step 6: Drive the swing arm (311) to swing, send the clamping assembly (302) to the discharge port (303), inflate the air cavity (3131), and tilt the end of the clamping assembly (302) at a certain angle, driving the battery to roll from the clamping assembly (302) to the discharge port (303) and finally fall into the discharge channel (104).

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