A waste lithium battery recycling and processing device and a processing method

Abstract

The present invention relates to the technical field of lithium battery recycling, and particularly relates to a waste lithium battery recycling and processing device and a processing method. The device includes a machine shell, an upper feeding cavity is arranged inside the machine shell, an inclined upper feeding channel is arranged at the bottom of the upper feeding cavity, the upper feeding channel is connected with a sorting channel, the sorting channel includes a plurality of sorting units arranged from top to bottom, which are used for sorting batteries according to different sizes. The sorting units are cooperatively butted with a clamping assembly for grasping the batteries. The clamping assembly is connected with a rotating member, the rotating member is connected with a swing arm, a rotating cavity is arranged at the end of the swing arm, the rotating member is installed in the rotating cavity, and a pneumatic member is fixedly installed in the rotating cavity. The pneumatic member includes an air cavity fixedly installed in the rotating cavity, the air cavity is connected with a pressure gauge for monitoring the air pressure in the air cavity, and a pressure change curve is drawn according to the pressure gauge. When the trough size of the pressure change curve remains unchanged, it is determined that the electrolyte has been completely drained. It can accurately monitor whether the battery electrolyte is cleaned, and improve work efficiency.

Description

Technical Field

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

[0002] Batteries are important energy storage and supply components, which are widely used in various devices. Among them, lithium batteries are more environmentally friendly and safe because they do not contain toxic heavy metals such as mercury, cadmium, and lead, and their applications are gradually becoming widespread. A lithium battery mainly consists of a positive electrode material, a negative electrode material, an electrolyte, a separator, and a casing. During recycling, pollution will also be generated if the recycling is not carried out properly.

[0003] In view of the above problems, the Chinese invention patent with the application number CN202210056586.8 provides a recycling and treatment device for waste lithium batteries, 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, facilitating the batch recycling of the lithium batteries to be recycled.

[0004] However, the applicant has found that the prior art has at least the following problems:

[0005] Regarding the cleaning of the electrolyte in the battery, the prior art cannot determine whether the electrolyte has been cleaned up, which may result in the incomplete cleaning of the electrolyte in some batteries. It may also lead to the situation that when the electrolyte has been cleaned up, the cleaning process is still ongoing due to a relatively long cleaning time, reducing the working efficiency. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide a recycling and treatment device and method for waste lithium batteries to solve the problem that the prior art cannot determine whether the electrolyte has been cleaned up.

[0007] For the above purposes, the present invention provides a recycling and processing device for waste lithium batteries, which includes a machine shell. Inside the machine shell, there is a feeding chamber. At the bottom of the feeding chamber, there is an inclined feeding channel. The feeding channel is connected to a sorting channel. The sorting channel includes a plurality of sorting units arranged from top to bottom for sorting batteries according to different sizes. The sorting units are cooperatively docked with a clamping assembly for grasping the batteries. The clamping assembly is connected to a rotating member. The rotating member is connected to a swing arm. At the end of the swing arm, there is a rotating chamber. The rotating member is installed in the rotating chamber. In the rotating chamber, a pneumatic member is fixedly installed. The pneumatic member includes an air chamber fixedly installed in the rotating chamber. The air chamber is communicated with an air pump. The air chamber includes a first piston chamber and a second piston chamber. In the first piston chamber, a driving assembly is installed for driving the rotating member to rotate a certain angle when inflating and deflating. The driving assembly is connected to a cylindrical end. Between the cylindrical end and the rotating chamber, there is a torsion member, so that the rotating member has a tendency to rotate back. In the second piston chamber, a limiting assembly is pneumatically connected for controlling whether the rotating member can rotate. The rotating member includes a connecting column connected to the clamping assembly. The connecting column is connected to an elastic telescopic 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 movement of the connecting rod drives the limiting assembly to move, changing the internal air pressure of the air chamber. The air chamber is connected to a pressure gauge for monitoring the air pressure of the air chamber. According to the pressure gauge, a pressure change curve is drawn. When the trough size of the pressure change curve remains unchanged, it is determined that the electrolyte has been drained completely.

[0008] Optionally, a first liquid release chamber and a second liquid release chamber are respectively arranged on both sides of the sorting channel. The bottoms of the first liquid release chamber and the second liquid release chamber are connected to a liquid storage chamber. The sorting channel includes a plurality of sorting units arranged from top to bottom. The sorting unit includes a power inclined plate that can move up and down for transporting the battery upward. On the opposite side of the inclined surface of the power inclined plate, there is a baffle and a guide plate. Between the baffle and the guide plate, there is a screening opening. The sizes of the screening openings of the multiple sorting units decrease from top to bottom respectively, corresponding to different models of batteries. The screening opening is used to connect the adjacent sorting units above and below. On the side wall of the sorting channel, a plurality of collection openings are opened. In the first liquid release chamber and the second liquid release chamber, a plurality of swing shafts are installed. The swing shafts are connected to a swing rod assembly. The swing rod assembly is connected to a clamping assembly for receiving and clamping the battery rolling out from the collection opening. On the side walls of the first liquid release chamber and the second liquid release chamber, a plurality of drill bit seats are slidably installed. On the drill bit seats, a plurality of groups of drill bits are arranged in an array. On the side of the drill bit seat, a propulsion gear is meshed for drilling the end face of the battery. On the first liquid release chamber and the second liquid release chamber, a plurality of groups of discharge openings are also opened. The discharge openings correspond to the collection openings one by one and are symmetrically arranged with the swing shaft as the axis of symmetry. The discharge openings are communicated with a discharge chamber. At the bottom of the discharge chamber, an inclined discharge channel is installed for the battery to roll out.

[0009] Optionally, a guide opening is opened on the side wall of the feeding chamber. In the guide opening, a driven rack is installed. The driven rack is fixedly connected to the power inclined plate. The driven rack is meshed with a driving gear.

[0010] Optionally, the clamping assembly includes two sets of clamping units arranged up and down. A clamping space is formed between the two sets of clamping units for accommodating the battery. Each clamping unit includes two clamping plates. The clamping plates are in the shape of right-angled plates. An electric adjusting rod is connected between the two clamping plates to adapt to the axial height of the battery. Limiting plates are also installed at the ends of the two clamping plates to prevent the battery from rolling out. Right-angled connecting plates are respectively installed on the two clamping units. A sleeve plate is connected between the two right-angled connecting plates. The sleeve plate is fixedly connected with an electric telescopic rod. The two ends of the electric telescopic rod are respectively fixedly connected with the two right-angled connecting plates to drive one end of the right-angled connecting plate to stretch in the sleeve plate to adapt to batteries of different diameters.

[0011] Optionally, the sleeve plate is connected with a rotating member. The rotating member is rotatably connected with a swing arm. In the initial state of the rotating member, the clamping assembly has a certain inclination for the battery to roll and gather towards the limiting plate.

[0012] Optionally, the driving assembly includes a threaded piston fitted in the first piston chamber. The threaded piston is threadedly connected with a threaded rod. One end of the threaded rod is rotatably connected with a rotating seat. The rotating seat is fixedly installed in the air chamber through an inner connecting rod. The other end of the threaded rod extends into the inner part of the cylindrical end. A connecting groove is opened in the inner part of the cylindrical end. The threaded rod is fixedly connected with the inner wall of the connecting groove through a linkage rod. A limiting guide groove is provided on the inner wall of the first piston chamber. A limiting strip is provided on the side wall of the threaded piston and is matched with the limiting guide groove to limit the threaded piston to only perform piston movement in the first piston chamber.

[0013] Optionally, the limiting assembly includes an extrusion piston fitted in the second piston chamber. The extrusion piston is connected with a piston rod. The end of the piston rod is connected with a telescopic limiting rod for restricting the rotation of the rotating member. A limiting groove is opened on the connecting rod. The bottom of the limiting groove is inclined. When the extrusion piston moves outwards, the telescopic limiting rod is driven to move out of the limiting groove to release the restriction on the rotation of the rotating member.

[0014] Optionally, the connecting rod includes an elastic telescopic cylinder. The elastic telescopic cylinder is fixedly connected with the cylindrical end. A return spring is installed in the elastic telescopic cylinder. The return spring is connected with a telescopic square rod. The limiting groove is opened on the telescopic square rod. The telescopic square rod is fixedly connected with the connecting column.

[0015] Optionally, a blanking inclined plate is arranged between adjacent clamping assemblies up and down. The blanking inclined plates are respectively inclined and installed on the side walls of the first liquid release chamber and the second liquid release chamber. A gap is provided at the inclined bottom end of the blanking inclined plate for the electrolyte to leak down and gather in the liquid storage chamber.

[0016] The present invention also provides a processing method for a waste lithium battery recycling and processing device, including the following steps:

[0017] Step 1: Import the batteries horizontally placed in the feeding cavity into the sorting channel;

[0018] Step 2: Multiple sorting units distributed vertically in the sorting channel sort the batteries according to their diameters and import them into different clamping components;

[0019] Step 3: Drill the batteries in different clamping components;

[0020] Step 4: Drive the swing arm to swing to spin-dry the electrolyte of the batteries in the clamping components;

[0021] 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 spun out;

[0022] Step 6: Drive the swing arm to swing, send the clamping component to the discharge port, inflate the air cavity, tilt the end of the clamping component by a certain angle, and drive the battery to roll from the clamping component to the discharge port and finally fall into the discharge channel.

[0023] Advantages of the present invention: The present invention provides a waste lithium battery recycling and treatment device and a treatment method. When recycling and treating the batteries, the batteries are arranged in sequence on the feeding channel, and the power inclined plate moves upward to the screening port. When the diameter of the battery 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 process of spinning out the electrolyte, the swing arm swings back and forth. Due to the action of centrifugal force, a tensile force is applied to the connecting column, thereby pulling the telescopic square rod. The telescopic square rod then pulls the telescopic limiting rod, and further pulls the extrusion piston, so that the pressure in the air cavity continuously changes. In one swing cycle, the pressure decreases to a trough value and then increases, and cycles continuously. As the electrolyte is continuously spun out, the centrifugal force gradually decreases, so the trough value of the pressure gradually increases. When the electrolyte is completely spun out, the trough value of the wave line drawn by the pressure no longer changes. At this time, it is determined that the electrolyte has been completely spun out, which can ensure that the electrolyte is completely spun out while ensuring the working efficiency. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only those of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 It is a schematic diagram of a waste lithium battery recycling and treatment device according to an embodiment of the present invention;

[0026] Figure 2Partial schematic of a waste lithium battery recycling and processing device according to an embodiment of the present invention Figure 1 ;

[0027] Figure 3 Partial schematic of a waste lithium battery recycling and processing device according to an embodiment of the present invention Figure 2 ;

[0028] Figure 4 Schematic diagram of the clamping assembly of a waste lithium battery recycling and processing device according to an embodiment of the present invention;

[0029] Figure 5 Schematic of the swing arm of a waste lithium battery recycling and processing device according to an embodiment of the present invention Figure 1 ;

[0030] Figure 6 Schematic of the swing arm of a waste lithium battery recycling and processing device according to an embodiment of the present invention Figure 2 ;

[0031] Figure 7 is Figure 6 Partial enlarged schematic of the structure of part A in

[0032] Figure 8 Partial schematic of a waste lithium battery recycling and processing device according to an embodiment of the present invention Figure 3 ;

[0033] Figure 9 Schematic diagram of the rotating part of a waste lithium battery recycling and processing device according to an embodiment of the present invention.

[0034] The markings in the figure are:

[0035] 101. Housing; 102. First liquid release chamber; 103. Discharge chamber; 104. Discharge channel; 105. Second liquid release chamber; 106. Liquid storage chamber; 107. Feeding 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 adjusting rod; 306. Limiting plate; 307. Right-angle connecting plate; 308. Electric telescopic rod; 309. Sleeve plate; 310. Rotating member; 311. Swing arm; 312. Rotating cavity; 3121. Elastic telescopic cylinder; 3122. Telescopic square rod; 313. Pneumatic component; 314. Torsion component; 3101. Connecting column; 3102. Connecting rod; 3103. Limiting groove; 3104. Cylindrical end; 3105. Connecting groove; 3131. Air cavity; 3132. Fixed column; 3133. First piston chamber; 3134. Inner connecting rod; 3135. Rotating seat; 3136. Threaded piston; 3137. Threaded rod; 3138. Linking rod; 3139. Second piston chamber; 3140. Extrusion piston; 3141. Piston rod; 3142. Telescopic limiting rod; 401. Drill bit seat; 402. Drill bit; 403. Propelling gear. Detailed implementation manners

[0036] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with specific embodiments.

[0037] It should be noted that unless otherwise defined, the technical terms or scientific terms used in the present invention should have the ordinary meanings understood by those with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. The terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to represent relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0038] Such as Figures 1 to 9As shown in the figure, a recycling and processing device for waste lithium batteries is provided in a specific embodiment of the present invention, which includes a machine housing 101. Inside the machine housing 101, there is a feeding chamber 201. At the bottom of the feeding chamber 201, there is an inclined feeding channel 202. The feeding channel 202 is connected to a sorting channel 211. On both sides of the sorting channel 211, there are a first liquid release chamber 102 and a second liquid release chamber 105 respectively. The bottoms of the first liquid release chamber 102 and the second liquid release chamber 105 are connected to a liquid storage chamber 106. The sorting channel 211 includes a plurality of sorting units arranged from top to bottom. Each sorting unit includes a power inclined plate 203 that can move up and down and is used to transport the batteries upward. On the opposite side of the inclined surface of the power inclined plate 203, there are a baffle 207 and a guide plate 209. Between the baffle 207 and the guide plate 209, there is a screening opening 208. The sizes of the screening openings 208 of the plurality of sorting units decrease from top to bottom respectively, corresponding to different models of batteries. The screening opening 208 is used to connect the adjacent sorting units above and below. On the side wall of the sorting channel 211, there are a plurality of collection openings 210. In the first liquid release chamber 102 and the second liquid release chamber 105, there are installed multiple groups of swing shafts 301. The swing shafts 301 are connected to a swing rod assembly, and the swing rod assembly is connected to a clamping assembly 302, which is used to receive and clamp the batteries rolling out from the collection openings 210. On the side walls of the first liquid release chamber 102 and the second liquid release chamber 105, there are slidably installed multiple groups of drill bit seats 401. On the drill bit seats 401, there are arranged multiple groups of drill bits 402 in an array. On the side of the drill bit seat 401, there is a meshing connection with a propulsion gear 403, which is used to drill the end faces of the batteries. On the first liquid release chamber 102 and the second liquid release chamber 105, there are also provided multiple groups of discharge openings 303. The discharge openings 303 and the collection openings 210 are in one-to-one correspondence and are symmetrically arranged with the swing shaft 301 as the axis of symmetry. The discharge openings 303 are connected to a discharge chamber 103. At the bottom of the discharge chamber 103, there is an inclined discharge channel 104 installed, which is used for the batteries to roll out.

[0039] During battery recycling, the battery is placed horizontally in the loading chamber 201. Since the battery is cylindrical, it is arranged in a row on the loading channel 202. The battery at the front of the loading channel 202 rolls into the uppermost sorting unit and lands on the power inclined plate 203. Then, the power inclined plate 203 moves upward to the screening opening 208. It should be noted that at this time, the side of the power inclined plate 203 facing the loading channel 202 always blocks and positions 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 opening 208, the battery rolls from the power inclined plate 203 into the screening opening 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 opening 208, as the power inclined plate 203 continues to rise, the battery is sent to the guiding plate 209. The battery rolls along the guiding plate 209 into the collection port 210 under the action of gravity. At this time, the clamping assembly 302 stays at the collection port 210, and the battery rolls into the clamping assembly 302. When the clamping assembly 302 is full of batteries, the clamping assembly 302 clamps and fixes the batteries. The propulsion gear 403 drives the drill bit holder 401 to move, and multiple drill bits 402 start working, corresponding to the multiple batteries on the clamping assembly 302 respectively, and punch the ends of the batteries. After punching is completed, the drill bit holder 401 retracts, and then the swing shaft 301 drives the clamping assembly 302 to swing back and forth, so as to quickly eject the electrolyte in the battery by using centrifugal force. After ejection is completed, the swing shaft 301 drives the clamping assembly 302 to swing to the discharge port 303. The clamping assembly 302 releases the clamping of the battery, and the clamping assembly 302 deflects by a certain angle, so that the battery inside it rolls out from the discharge port 303. The battery falls and accumulates on the discharge channel 104, and the electrolyte is recycled into the liquid storage chamber 106, thus realizing the recycling of lithium batteries of different models and improving the recycling efficiency.

[0040] In some optional specific embodiments, such as Figure 8 As shown, a guiding opening 204 is formed on the side wall of the loading chamber 201. A driven rack 205 is installed in the guiding opening 204. The driven rack 205 is fixedly connected to the power inclined plate 203, and the driven rack 205 is meshed with a driving gear 206. The driving gear 206 drives the power inclined plate 203 to move up and down.

[0041] In some optional specific embodiments, such as Figure 4As shown, the clamping assembly 302 includes two sets of clamping units arranged vertically. A clamping space is formed between the two sets of clamping units for accommodating the battery. Each clamping unit includes two clamping plates 304. The clamping plates 304 are in the shape of right-angled plates. An electric adjustment rod 305 is connected between the two clamping plates 304 to adapt to the axial height of the battery. Limiting plates 306 are also installed at the ends of the two clamping plates 304 to prevent the battery from rolling out. Right-angled connecting plates 307 are respectively installed on the two clamping units. A sleeve plate 309 is connected between the two right-angled connecting plates 307. The sleeve plate 309 is fixedly connected with an electric telescopic rod 308. The two ends of the electric telescopic rod 308 are respectively fixedly connected with the two right-angled connecting plates 307 to drive one end of the right-angled connecting plate 307 to expand and contract in the sleeve plate 309 to adapt to batteries of different diameters. During use, the battery enters the clamping space from the collection port 210 at a certain initial velocity until it rolls to the end and is blocked by the limiting plate 306. The sequentially rolled-in batteries 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 shorten to clamp and fix the batteries therein.

[0042] In some optional specific embodiments, as Figure 4 shown, the sleeve plate 309 is connected with a rotating member 310. The rotating member 310 is rotatably connected with a swing arm 311. In the initial state of the rotating member 310, the clamping assembly 302 has a certain inclination for the battery to roll and gather towards the limiting plate 306. This facilitates the arrangement and gathering of the battery in the clamping assembly 302.

[0043] In some optional specific embodiments, as Figures 5 to 7 shown, a rotating cavity 312 is provided at the end of the swing arm 311. The rotating member 310 is adaptively installed in the rotating cavity 312. A torsion member 314 is connected between the end of the rotating member 310 and the inner wall of the rotating cavity 312. The torsion member 314 makes the rotating member 310 tend to return to the initial state, so that the clamping assembly 302 has a certain inclination. An air actuator 313 is also fixedly installed in the rotating cavity 312. The air actuator 313 is power-connected to the rotating member 310. When the clamping assembly 302 swings to the discharge port 303, it drives the rotating member 310 to rotate, and the clamping assembly 302 deflects in the reverse direction by a certain angle, driving the battery on the clamping assembly 302 to roll out from the discharge port 303.

[0044] In some optional specific embodiments, 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, and 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 chamber 3131, and the air chamber 3131 is communicated with an air pump for controlling the air pressure inside the air chamber 3131. The air chamber 3131 is fixedly installed in the rotating chamber 312 through a fixing column 3132. The air chamber 3131 is connected to a first piston chamber 3133. A threaded piston 3136 is adaptively 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 through an inner connecting rod 3134. The other end of the threaded rod 3137 extends into the cylindrical end 3104. A connecting groove 3105 is formed 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 chamber 3133, and a limiting strip cooperating with the limiting guide groove is provided on the side wall of the threaded piston 3136 to limit the threaded piston 3136 to only perform piston movement in the first piston chamber 3133.

[0045] By charging and discharging air into the air chamber 3131, the threaded piston 3136 is moved. The movement of the threaded piston 3136 drives the threaded rod 3137 to rotate. When the threaded rod 3137 rotates by a certain angle, it drives the cylindrical end 3104 to rotate, and then drives the connecting column 3101 to rotate, and finally drives the clamping assembly 302 to rotate by a certain angle.

[0046] In some alternative specific embodiments, such as Figure 7 and Figure 9As shown, the air chamber 3131 is connected to a second piston chamber 3139. An extrusion piston 3140 is fitted and 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 limit rod 3142, which is used to limit the rotation of the rotating member 310. A limit groove 3103 is formed on the connecting rod 3102. The bottom of the limit groove 3103 is inclined. When the extrusion piston 3140 moves outwards, it drives the telescopic limit rod 3142 to move out of the limit groove 3103, releasing the restriction on the rotation of the rotating member 310. During use, when the rotating member 310 is in the initial state, 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 feeding is required, air is filled into the air chamber 3131, so that the telescopic limit rod 3142 moves out of the limit groove 3103, and then the restriction on the rotation of the rotating member 310 is released. When air is continuously filled, the threaded rod 3137 rotates to drive the rotating member 310 to rotate. After the action is completed, the air chamber 3131 returns to the initial air pressure. Under the action of the torsion member 314, the rotating member 310 resets, and the telescopic limit rod 3142 re-enters the limit groove 3103.

[0047] In some optional specific embodiments, as Figure 7 and Figure 9 shown, the connecting rod 3102 includes 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 a telescopic square rod 3122. The limit groove 3103 is formed on the telescopic square rod 3122. The telescopic square rod 3122 is fixedly connected to the connecting column 3101. The air chamber 3131 is connected to a pressure gauge, which is used to monitor the air pressure inside the air chamber 3131 when the swing arm 311 swings to throw out the battery electrolyte and draw a pressure change curve. When the trough size of the pressure change curve remains unchanged, it is determined that the electrolyte has been completely thrown out.

[0048] During the process of throwing out the electrolyte, the swing arm 311 swings back and forth. Due to the action of centrifugal force, a pulling force is applied to the connecting column 3101, thereby pulling the telescopic square rod 3122. The telescopic square rod 3122 then pulls the telescopic limit rod 3142, and further pulls the extrusion piston 3140, so that the pressure in the air chamber 3131 continuously changes. In a swing cycle, the pressure decreases to a trough value and then increases, and cycles continuously. As the electrolyte is continuously thrown out, the centrifugal force gradually decreases, so the trough value of the pressure gradually increases. When the electrolyte is completely thrown out, the trough value of the wave line drawn by the pressure no longer changes. At this time, it is determined that the electrolyte has been completely thrown out, which can ensure that the electrolyte is completely thrown out while ensuring the working efficiency.

[0049] In some optional specific embodiments, as Figure 2As shown, a blanking inclined plate 107 is arranged between the adjacent clamping components 302 up and down. The blanking inclined plate 107 is respectively installed obliquely on the side walls of the first liquid release cavity 102 and the second liquid release cavity 105. A gap is provided at the inclined bottom end of the blanking inclined plate 107 for the electrolyte to leak down and collect in the liquid storage cavity 106.

[0050] The present invention also provides a method for recycling and treating waste lithium batteries, including:

[0051] Step 1: Import the batteries horizontally placed in the feeding cavity 201 into the sorting channel 211.

[0052] Step 2: Multiple sorting units distributed up and down in the sorting channel 211 sort according to the diameter of the batteries and import them into different clamping components 302.

[0053] Step 3: Drill the batteries in different clamping components 302.

[0054] Step 4: Drive the swing arm 311 to swing to spin-dry the electrolyte of the batteries in the clamping components 302.

[0055] Step 5: Monitor the air pressure change in the air cavity 3131 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 spun out.

[0056] Step 6: Drive the swing arm 311 to swing, send the clamping component 302 to the discharge port 303, inflate the air cavity 3131, and the end of the clamping component 302 is inclined at a certain angle to drive the battery to roll from the clamping component 302 to the discharge port 303 and finally fall onto the discharge channel 104.

[0057] Working principle of the present invention: When recycling and processing the battery, it is horizontally placed in the feeding chamber 201. Since the battery is cylindrical, it is arranged in a row on the feeding channel 202. The battery at the front of the feeding channel 202 rolls into the sorting unit at the topmost position and lands on the power inclined plate 203. Then, the power inclined plate 203 moves upward to the screening opening 208. It should be noted that at this time, the side of the power inclined plate 203 facing the feeding channel 202 always blocks and positions the batteries on the feeding channel 202. When the diameter of the battery on the power inclined plate 203 is smaller than the longitudinal height of the screening opening 208, the battery rolls from the power inclined plate 203 into the screening opening 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 opening 208, as the power inclined plate 203 continues to rise, the battery is sent to the guiding plate 209, and the battery rolls along the guiding plate 209 into the collection port 210 under the action of gravity. At this time, the clamping assembly 302 stays at the collection port 210, and the battery rolls into the clamping assembly 302. When the clamping assembly 302 is filled with batteries, the clamping assembly 302 clamps and fixes the batteries, the driving gear 403 drives the drill bit holder 401 to move, and multiple drill bits 402 start to work, corresponding to the multiple batteries on the clamping assembly 302 respectively, and punch holes at their ends. After the punching is completed, the drill bit holder 401 retracts, and then the swing shaft 301 drives the clamping assembly 302 to swing back and forth, so as to quickly eject the electrolyte in the battery by using centrifugal force. After the ejection is completed, the swing shaft 301 drives the clamping assembly 302 to swing to the discharge port 303, the clamping assembly 302 releases the clamping of the battery, and the clamping assembly 302 deflects by a certain angle, so that the battery inside it rolls out from the discharge port 303, and the battery falls and accumulates 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.

[0058] During the process of ejecting the electrolyte, the swing arm 311 swings back and forth. Due to the action of centrifugal force, a pulling force is applied to the connecting column 3101, thereby pulling the telescopic square rod 3122. The telescopic square rod 3122 then pulls the telescopic limiting rod 3142, and further pulls the extrusion piston 3140, so that the pressure in the air chamber 3131 continuously changes. In one swing cycle, the pressure decreases to a trough value and then increases, and cycles continuously. As the electrolyte is continuously ejected, the centrifugal force gradually decreases, so the trough value of the pressure gradually increases. Until the electrolyte is completely ejected, the trough value of the wave line drawn by the pressure no longer changes. At this time, it is determined that the electrolyte has been completely ejected, which can ensure that the electrolyte is completely ejected while ensuring the working efficiency.

[0059] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is merely exemplary 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 can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, and they are not provided in detail for the sake of brevity.

[0060] 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 principle of the present invention shall be included within the protection scope 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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