Efficient pre-treatment and recycling equipment for waste batteries

Abstract

Disclosed in the present invention is efficient pre-treatment and recycling equipment for waste batteries, the equipment comprising a base plate (1), a recycling device (2), a delivery device (3) and a treatment device (4). The bottom of the delivery device (3) is fixedly mounted to one end of the top of the base plate (1). In the present invention, by providing fixing assemblies (34) and the recycling device (2), a suction pump (22) can suction the slurry and electrolyte in batteries (35) downwards so that the slurry and electrolyte drop, and a driving assembly can enable the slurry and electrolyte in the batteries (35) to be quickly delivered into the treatment device (4) for treatment, thus, the efficiency of recycling waste batteries (35) is improved, the N-methylpyrrolidone liquid phase is recycled, decomposition gases and volatile toxic gases produced from the electrolyte are prevented from being given off quickly to the outside, and environment pollution is avoided. By providing the treatment device (4), the positive electrode material solid phase is subjected to high-temperature calcination treatment at the top of a calcination rotating disc (442) and then crushed into powder by crushing blades (445), and the powder reaches an acid leaching cylinder for acid leaching recycling treatment, thus, various metal elements in positive electrode slurry materials are recycled, and the recycling rate is high.

Description

A high-efficiency pretreatment and recycling equipment for waste batteries Technical Field

[0001] The present invention relates to the technical field of battery slurry recovery and processing, in particular to a high-efficiency pre-processing and recovery device for waste batteries. Background Art

[0002] Existing lithium-ion batteries are widely used in various fields due to their advantages such as high energy density, light weight and long service life. The main parts of lithium-ion batteries are positive and negative electrodes. The components of the positive electrode slurry of lithium batteries are mainly: positive electrode material, carbon powder, N-methylpyrrolidone (NMP) (solvent), polyvinylidene fluoride (PVDF) and other impurities. In order to save costs and protect the environment, it is necessary to recycle the waste positive electrode slurry and electrolyte.

[0003] In the prior art, for example, Chinese patent number CN113648670A discloses a method for recovering waste lithium battery slurry containing NMP and an apparatus for recovering the same. This method involves pre-treating the lithium battery slurry and then subjecting the pre-treated lithium battery slurry to centrifugal spray drying to separate the solid phase and solvent. This method utilizes centrifugal spraying to completely and efficiently separate the positive electrode material and NMP. This process does not introduce impurities, thereby improving the purity of NMP, reducing processing costs, and reducing environmental pollution, making it highly promising for industrial application. This proposal also discloses an apparatus for recovering lithium battery slurry, which is a centrifugal spray drying system comprising a spray chamber, a cyclone separator, a condenser, a condensate storage tank, and a distillation tower. This system improves upon the existing centrifugal spray drying equipment and is designed by combining centrifugal spray drying with the NMP condensation recovery process. This allows for direct recovery of NMP after separation of the positive electrode material and NMP, resulting in high processing efficiency and the ability to achieve continuous production.

[0004] At present, the recycling method for the positive electrode slurry of waste lithium batteries generally includes the following steps: stirring slurry, funnel filtration, drying, ball milling, fluidized bed separation, packed absorption tower tail gas treatment, and screening. However, the recycling process of the existing recycling and processing equipment is cumbersome and the operating efficiency is extremely low. Secondly, when recycling the slurry and electrolyte in the waste batteries, the lithium battery electrolyte is highly volatile and toxic. The decomposition gas produced by the electrolyte contains harmful gases such as phosphorus pentafluoride and hydrogen fluoride. The existing technology ignores or understands that it does not pay attention to the treatment of volatile substances. The volatilized harmful gases will pollute the environment, so there is still room for improvement. In response to the above problems, an efficient pretreatment and recycling equipment for waste batteries is proposed.

[0005] Summary of the Invention

[0006] The purpose of the present invention is to provide an efficient pre-treatment and recycling equipment for waste batteries to solve the problem that the existing recycling and processing equipment proposed in the above background technology has a cumbersome recycling process and extremely low operating efficiency. Secondly, when recycling the slurry and electrolyte in the waste batteries, the lithium battery electrolyte is highly volatile and toxic. The decomposition gas produced by the electrolyte contains harmful gases such as phosphorus pentafluoride and hydrogen fluoride. The existing technology ignores or understands that it does not pay attention to the treatment of volatile substances, and the volatilized harmful gases will pollute the environment.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an efficient pre-processing and recycling device for waste batteries, comprising a base plate, a recycling device, a conveying device and a processing device, wherein one end of the top of the base plate is fixedly installed with the bottom of the conveying device, and the other end of the top of the base plate is fixedly installed with the bottom of the processing device, the conveying device comprises a controller, a turntable and a support frame, the top of the turntable is movably installed with the bottom of the controller, and a plurality of fixed components are evenly arranged on the bottom of the turntable, the fixed components comprise a mounting block, a movable rod, a slider, a vacuum negative pressure pump and a suction cup, two ends of the bottom of the mounting block are symmetrically fixedly connected to two extension rods, the two ends of the movable rod are fixedly installed with the bottom of the extension rod, and the outer wall of the movable rod is slidably connected to the inner wall of the slider, one end of the movable rod is fixedly connected to a driving component, an electric push rod is arranged inside the movable rod, and the electric push rod One end of the movable push rod is movably installed with one end of the driving assembly, and the other end of the electric push rod is movably installed with one end of the slider, the top of the vacuum negative pressure pump is fixedly installed with the bottom of the slider, and the bottom of the vacuum negative pressure pump is movably connected to the top of the suction cup, the processing device includes a base, a material delivery pipe, a centrifuge, a material guide pipe and a recovery processing cylinder, the recovery processing cylinder includes an outer shell, a top cover, a connecting rod, a crushing plate, an acid leaching cylinder, a rotating motor and a stopper, a fixing ring is fixedly connected to the inner side of the top of the outer shell, the inner wall of the fixing ring is slidably connected to the outer wall of the calcining turntable, a slot is provided through the top end of the calcining turntable, the top of the fixing ring is fixedly installed with the bottom of the stopper, the top of the calcining turntable is fixedly connected to the bottom of the connecting rod, the top of the crushing plate is movably connected to the bottom of the rotating motor, and a plurality of crushing blades are evenly arranged on the outer side of the bottom end of the rotating motor.

[0008] Preferably, the inner wall of the shell is fixedly mounted to the outer wall of the crushing plate, the bottom inner wall of the shell is fixedly connected to the bottom of the pickling cylinder, and a dewatering pipe is provided on one side of the pickling cylinder.

[0009] Preferably, the top of the shell is fixedly mounted to the bottom of the top cover, and the bottom of the shell is fixedly mounted to one end of the top of the bottom plate.

[0010] Preferably, a battery is provided at the bottom of the suction cup, the top of the base is fixedly mounted to the bottom of the centrifuge, and a centrifugal motor is provided at the top of the centrifuge.

[0011] Preferably, the front side of the centrifuge is fixedly connected to a separation pipe, one end of the top of the centrifuge is fixedly connected to one end of the material guide pipe, and one side of the centrifuge is fixedly connected to one end of the material delivery pipe.

[0012] Preferably, one end of the feed pipe is fixedly connected to the top of the top cover, the top of the mounting block is fixedly connected to the bottom of the turntable, the top of the support frame is fixedly connected to the bottom of the controller, and the bottom of the support frame is fixedly installed to the top of the base plate.

[0013] Preferably, a plurality of connecting lines are provided on the top of the turntable, and the recovery device includes a fixed plate, an air suction pump, a discharge barrel and a carrying ring. The outer wall of the discharge barrel is fixedly installed to the inner side of the carrying ring, and a through hole is opened at the bottom of the discharge barrel.

[0014] Preferably, the top of the fixed plate is fixedly mounted to the bottom of the suction pump, the top of the suction pump is movably connected to the bottom of the discharge barrel, and one side of the bottom end of the discharge barrel is fixedly connected to a discharge pipe.

[0015] Preferably, one end of the discharge pipe is fixedly connected to one end of the guide pipe, the bottom of the carrying ring is evenly and fixedly connected with four support rods, and the bottom of the support rods is fixedly installed with the top of the fixed plate.

[0016] Preferably, the discharge barrel includes a barrel, a knocking rod, a ring and a striking ball. The top of the barrel is fixedly installed with the bottom of the ring. Two load-bearing rods 2 are symmetrically fixedly connected to the inner side of the top of the barrel. The outer wall of the load-bearing rod 2 is rotatably connected to a rolling ball. The outer wall of the rolling ball is evenly fixedly connected to three support rods. Two load-bearing rods 1 are symmetrically fixedly connected to the inner side of the barrel. The outer wall of the load-bearing rod 1 is movably connected to a rotating block. The inner side of the rotating block is fixedly installed with the bottom end of the knocking rod. The top of the knocking rod is fixedly connected to the bottom of the striking ball. A magnetic block 2 is provided on the inner side of the top end of the knocking rod, and a magnetic block 1 is provided on the inner side of the bottom end of the knocking rod.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In the present invention, by arranging a fixing component and a recovery device, the suction pump can suck the slurry and electrolyte inside the battery downward and drop them. The knocking rod and the striking ball in the discharge barrel continuously hit the inside of the battery, causing the battery to shake, so that the slurry and electrolyte quickly fall downward into the discharge barrel. At the same time, the driving component can make the slider drive the battery to shake left and right. The fixing component can not only facilitate the fixing and removal of the battery, but also make the slurry and electrolyte in the battery shake and fall quickly. The combination of the fixing component and the discharge barrel can make the slurry and electrolyte in the battery quickly transported to the processing device for processing, thereby improving the recovery and processing efficiency of the battery slurry and electrolyte, avoiding the rapid volatilization of decomposition gas and volatile toxic gas generated by the electrolyte, and solving the problem that harmful gases volatilized from the electrolyte will pollute the environment.

[0019] 2. In the present invention, the slurry and the electrolyte reach the centrifuge through the discharge pipe and the guide pipe. The centrifugal motor and the centrifuge are convenient for recovering the N-methylpyrrolidone (NMP) liquid phase and the electrolyte. The electrolyte is condensed and purified by activated carbon adsorption in a sealed state, which can remove the harmful gases of phosphorus pentafluoride and hydrogen fluoride in the decomposition gas, avoid polluting the environment, realize the automatic harmless and effective recovery of waste lithium batteries, and solve the problem of harmful gas leakage in the waste battery electrolyte recovery process in the prior art.

[0020] 3. In the present invention, by setting up a processing device, the solid phase of the positive electrode material is subjected to high-temperature calcination treatment on the top of the calcination turntable, and the treated solid phase of the positive electrode material falls downward on the top of the crushing plate. The crushing blade can crush the solid phase of the positive electrode material into powder, and the solid phase powder of the positive electrode material then falls downward into the acid leaching cylinder for acid leaching recovery treatment, thereby realizing the recycling of various metal elements in the positive electrode slurry material. This treatment method makes the recovery rate of metal elements in the positive electrode material higher, and secondly, the efficiency during the operation is higher, achieving the highest recovery rate of resources, and the operation process is simple and the work efficiency is high.

[0021] 4. In the present invention, when the bottom end of the battery is located at the top of the barrel of the discharge barrel, the downward negative pressure adsorption force is used to make the two rolling balls rotate. After the outer support rod touches the bottom end of the knocking rod, the knocking rod will be pressed downward to rotate, and the hitting ball at the top end of the knocking rod will knock on the inner wall of the battery shell. At the same time, there is a magnetic attraction force between the two magnetic blocks 2 at the top end of the two knocking rods, and a magnetic repulsion force between the two magnetic blocks 1 at the bottom end. After the support rod is away from the bottom of the knocking rod, the knocking rods on both sides rotate in the opposite direction and return to their original positions under the action of the magnetic force, waiting for the next support rod to touch again, repeating the above steps, and continuously hitting the inner wall of the battery shell at high frequency, accelerating the dispersion and falling of the slurry and electrolyte in the battery, and improving the recovery and processing efficiency of the battery slurry and electrolyte. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] FIG1 is a perspective view of an efficient pre-processing and recycling device for waste batteries according to the present invention;

[0023] FIG2 is a schematic diagram of the rear side structure of an efficient pretreatment and recycling device for waste batteries according to the present invention;

[0024] FIG3 is a bottom view of the structure of a conveying device of a high-efficiency pre-processing and recycling device for waste batteries according to the present invention;

[0025] FIG4 is a schematic diagram of the internal structure of a recycling device of a high-efficiency pre-processing and recycling device for waste batteries according to the present invention;

[0026] FIG5 is a schematic structural diagram of a fixing assembly of a high-efficiency pre-processing and recycling device for waste batteries according to the present invention;

[0027] FIG6 is a front view of a fixing assembly of a high-efficiency pre-processing and recycling device for waste batteries according to the present invention;

[0028] FIG7 is a schematic diagram of the internal structure of a recycling barrel of a high-efficiency pre-processing and recycling device for waste batteries according to the present invention;

[0029] FIG8 is a schematic diagram of a partial structure of a recycling drum of a high-efficiency pre-processing and recycling device for waste batteries according to the present invention;

[0030] FIG9 is a schematic diagram of the internal structure of a discharge barrel of a high-efficiency pretreatment and recycling device for waste batteries according to the present invention;

[0031] FIG10 is a front view of the interior of a discharge barrel of a high-efficiency pre-processing and recycling device for waste batteries according to the present invention;

[0032] FIG11 is a schematic structural diagram of a knocking rod of a high-efficiency pretreatment and recycling device for waste batteries according to the present invention.

[0033] In the picture:

[0034] 1. Bottom plate; 2. Recovery device; 3. Conveying device; 4. Processing device; 21. Fixed plate; 22. Suction pump; 23. Discharging barrel; 24. Through hole; 25. Support rod; 26. Discharging pipe; 27. Carrying ring; 31. Controller; 32. Turntable; 33. Connecting wire; 34. Fixing assembly; 35. Battery; 36. Support frame; 41. Base; 42. Separation tube; 43. Conveying pipe; 44. Recovery barrel; 45. Centrifuge; 46. Centrifugal motor; 47. Guide pipe; 341. Mounting block; 342. Extension rod; 343. Movable rod; 344. Slider; 345. Vacuum negative pressure pump; 3 46. ​​Suction cup; 347. Electric push rod; 348. Drive assembly; 441. Top cover; 442. Calcination turntable; 443. Connecting rod; 444. Crushing plate; 445. Crushing blade; 446. Pickling cylinder; 447. Housing; 448. Export pipe; 449. Stop block; 4410. Fixing ring; 4411. Slot; 4412. Rotating motor; 231. Load-bearing rod 1; 232. Load-bearing rod 2; 233. Ring; 234. Rolling ball; 235. Cylinder; 236. Knocking rod; 237. Hitting ball; 238. Support rod; 239. Rotating block; 240. Magnetic block 1; 241. Magnetic block 2. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0036] 1-11: A high-efficiency pre-processing and recycling device for waste batteries, including a base plate 1, a recycling device 2, a conveying device 3 and a processing device 4, one end of the top of the base plate 1 is fixedly installed with the bottom of the conveying device 3, the other end of the top of the base plate 1 is fixedly installed with the bottom of the processing device 4, the conveying device 3 includes a controller 31, a turntable 32 and a support frame 36, the top of the turntable 32 is movably installed with the bottom of the controller 31, and a plurality of fixed components 34 are evenly arranged on the bottom of the turntable 32, the fixed components 34 include a mounting block 341, a movable rod 343, a slider 344, a vacuum negative pressure pump 345 and a suction cup 346, the two ends of the bottom of the mounting block 341 are symmetrically fixedly connected to two extension rods 342, and the two ends of the movable rod 343 are fixedly connected to the extension rod The bottom of 342 is fixedly installed, and the outer wall of the movable rod 343 is slidably connected to the inner wall of the slider 344. One end of the movable rod 343 is fixedly connected to the driving component 348. The driving component 348 drives the slider 344 to move back and forth quickly on the movable rod 343 through the electric push rod 347. The slider 344 then drives the bottom battery 35 to shake left and right. The interior of the movable rod 343 is provided with an electric push rod 347. One end of the electric push rod 347 is movably installed with one end of the driving component 348, and the other end of the electric push rod 347 is movably installed with one end of the slider 344. The top of the vacuum negative pressure pump 345 is fixedly installed with the bottom of the slider 344. The vacuum negative pressure pump 345 can generate negative pressure through the suction cup 346 to adsorb the bottom battery 35, and the vacuum negative pressure pump 345 can generate negative pressure through the suction cup 346 to adsorb the bottom battery 35. The bottom of the air negative pressure pump 345 is movably connected to the top of the suction cup 346. The processing device 4 includes a base 41, a feed pipe 43, a centrifuge 45, a guide pipe 47 and a recovery and processing cylinder 44. The recovery and processing cylinder 44 includes an outer shell 447, a top cover 441, a connecting rod 443, a crushing plate 444, an acid leaching cylinder 446, a rotating motor 4412 and a stopper 449. The inner side of the top of the outer shell 447 is fixedly connected with a fixing ring 4410. The inner wall of the fixing ring 4410 is slidably connected to the outer wall of the calcining turntable 442. A slot 4411 is opened at one end of the top of the calcining turntable 442. The top of the fixing ring 4410 is fixedly installed with the bottom of the stopper 449. The top of the calcining turntable 442 is fixedly connected to the bottom of the connecting rod 443. The solid phase first falls on the top of the calcining turntable 442, and the block 449 plays a blocking role to prevent the positive electrode material solid phase on the calcining turntable 442 from falling downward. There is a high-temperature calcination component in the block 449. The positive electrode material solid phase is subjected to high-temperature calcination treatment on the top of the calcining turntable 442. After the treatment is completed, the connecting rod 443 is rotated, and the connecting rod 443 drives the calcining turntable 442 to rotate. The slot 4411 of the calcining turntable 442 rotates outward, so that the processed positive electrode material solid phase falls downward on the top of the crushing plate 444. The top of the crushing plate 444 is movably connected to the bottom of the rotating motor 4412. A plurality of crushing blades 445 are evenly arranged on the outer side of the bottom end of the rotating motor 4412. The rotating motor 4412 drives the bottom crushing blades 445 to rotate at high speed.The crushing blade 445 can crush the positive electrode material solid phase on the top of the crushing plate 444 into powder.

[0037] As shown in Figures 7 and 8, the inner wall of the shell 447 is fixedly installed with the outer wall of the crushing plate 444, the bottom inner wall of the shell 447 is fixedly connected to the bottom of the acid leaching cylinder 446, and a guide pipe 448 is provided on one side of the acid leaching cylinder 446. The crushing blade 445 can crush the solid phase of the positive electrode material on the top of the crushing plate 444 into powder, and the solid phase powder of the positive electrode material then flows down to the acid leaching cylinder 446 for acid leaching recovery treatment.

[0038] As shown in Figures 1, 7 and 8, the top of the shell 447 is fixedly installed with the bottom of the top cover 441, and the bottom of the shell 447 is fixedly installed with one end of the top of the base plate 1. The top cover 441 is used to ensure the sealing inside the shell 447.

[0039] As shown in Figures 3-6, a battery 35 is provided at the bottom of the suction cup 346, the top of the base 41 is fixedly installed with the bottom of the centrifuge 45, and a centrifugal motor 46 is provided on the top of the centrifuge 45. The centrifugal motor 46 centrifugally filters and separates the slurry in the centrifuge 45 into a positive electrode material solid phase and an N-methylpyrrolidone (NMP) liquid phase. The N-methylpyrrolidone (NMP) liquid phase is recovered through the front separation tube 42, thereby realizing the recovery of the N-methylpyrrolidone (NMP) liquid phase.

[0040] As shown in Figures 1 and 2, the front side of the centrifuge 45 is fixedly connected to a separation tube 42, one end of the top of the centrifuge 45 is fixedly connected to one end of the guide tube 47, and one side of the centrifuge 45 is fixedly connected to one end of the delivery tube 43. The guide tube 47 is used to transport the slurry and electrolyte in the discharge barrel 23 into the centrifuge 45, and the delivery tube 43 is used to transport the solid phase of the positive electrode material in the centrifuge 45 into the outer shell 447.

[0041] As shown in Figures 1-3, one end of the feed pipe 43 is fixedly connected to the top of the top cover 441, the top of the mounting block 341 is fixedly connected to the bottom of the turntable 32, the top of the support frame 36 is fixedly connected to the bottom of the controller 31, and the bottom of the support frame 36 is fixedly installed to the top of the base plate 1. The support frame 36 plays a supporting and fixing role, and the controller 31 can drive the turntable 32 to rotate and stop regularly.

[0042] As shown in Figures 1-4, a plurality of connecting lines 33 are provided on the top of the turntable 32, and the recovery device 2 includes a fixed plate 21, an air suction pump 22, a discharge barrel 23 and a carrying ring 27. The outer wall of the discharge barrel 23 is fixedly installed to the inner side of the carrying ring 27, and a through hole 24 is provided at the bottom of the discharge barrel 23. The air suction pump 22 can suck the slurry inside the battery 35 downward through the through hole 24, so that the slurry quickly falls downward into the discharge barrel 23. The recovery device 2 can quickly transport the slurry in the battery 35 to the processing device 4 for processing, thereby improving the recovery and processing efficiency of the battery 35 slurry.

[0043] As shown in Figures 1 and 4, the top of the fixed plate 21 is fixedly installed with the bottom of the suction pump 22, the top of the suction pump 22 is movably connected to the bottom of the discharge barrel 23, and one side of the bottom end of the discharge barrel 23 is fixedly connected with a discharge pipe 26. The fixing component 34 can not only facilitate the fixing and removal of the battery 35, but also make the slurry and electrolyte in the battery 35 shake and fall quickly.

[0044] As shown in Figures 1 and 4, one end of the discharge pipe 26 is fixedly connected to one end of the guide pipe 47, and four support rods 25 are evenly fixedly connected to the bottom of the supporting ring 27. The bottom of the support rod 25 is fixedly installed on the top of the fixed plate 21, and the supporting ring 27 and the support rod 25 play a supporting and fixing role.

[0045] As shown in Figures 9-11, the unloading barrel 23 includes a barrel 235, a knocking rod 236, a ring 233 and a striking ball 237. The top of the barrel 235 is fixedly installed with the bottom of the ring 233. The inner side of the top of the barrel 235 is symmetrically fixedly connected with two load-bearing rods 232. The outer wall of the load-bearing rod 232 is rotatably connected with a rolling ball 234. The outer wall of the rolling ball 234 is evenly fixedly connected with three support rods 238. The inner side of the barrel 235 is symmetrically fixedly connected with two load-bearing rods 231. The outer wall of the load-bearing rod 231 is movably connected with a rotating The inner side of the rotating block 239 is fixedly mounted to the bottom end of the knocking rod 236, the top of the knocking rod 236 is fixedly connected to the bottom of the striking ball 237, the inner side of the top end of the knocking rod 236 is provided with a magnetic block 241, and the inner side of the bottom end of the knocking rod 236 is provided with a magnetic block 1 240. When the bottom end of the battery 35 is located at the top of the barrel 235 of the discharge barrel 23, the suction pump 22 sucks the slurry and electrolyte in the battery 35 downward and drops them. At this time, the interior of the discharge barrel 23 and the interior of the battery 35 are subjected to a downward force, and the rolling ball 237 is rotated. The support rods 238 on the outer wall of the battery 34 rotate toward the axis of the cylinder 235 under the action of the downward suction force, so the rolling balls 234 on both sides rotate toward the inside of the cylinder 235 at the same time, one of the support rods 238 touches the bottom end of the knocking rod 236 and presses the bottom end of the knocking rod 236 downward, the knocking rod 236 and the rotating block 239 rotate under the action of the support rod 238, at this time the hitting ball 237 at the top of the knocking rod 236 knocks on the inside of the battery 35, and there is a magnetic attraction between the two magnetic blocks 241 at the top of the two knocking rods 236, and at the same time the two magnetic blocks 241 at the bottom There is a magnetic repulsion between the magnetic blocks 240. After the support rod 238 leaves, the knocking rods 236 on both sides rotate in the opposite direction to their original positions under the action of the magnetic attraction and magnetic repulsion. When the next support rod 238 touches the knocking rod 236 again, the above steps are repeated, so that the hitting ball 237 can continuously hit the inside of the battery 35, causing the battery 35 to shake, and the slurry and electrolyte in the battery 35 can fall quickly, thereby improving the recovery and processing efficiency of the slurry and electrolyte in the battery 35, and preventing the decomposition gas and volatile toxic gas generated by the electrolyte from volatilizing quickly to the outside.

[0046] In the present invention, when the device is in use, the turntable 32 is first turned on by the controller 31. The controller 31 can drive the turntable 32 to rotate and pause regularly, and at the same time, the fixing component 34, the recovery device 2 and the processing device 4 are turned on. There are multiple fixing components 34 at the bottom of the turntable 32. There is a battery 35 at the bottom of each fixing component 34. The vacuum negative pressure pump 345 at the bottom of the fixing component 34 can generate negative pressure through the suction cup 346 to absorb the battery 35 at the bottom. As the turntable 32 rotates, when the fixing component 34 and the bottom battery 35 rotate to the front of the turntable 32, the turntable 32 stops rotating. At this time, the external cutting component The bottom end of the battery 35 can be cut off. When the bottom end of the battery 35 is located at the top of the barrel 235 of the discharge barrel 23, the suction pump 22 sucks the slurry and electrolyte in the battery 35 downward and drops them. At this time, the interior of the discharge barrel 23 and the interior of the battery 35 are subjected to a downward force. At this time, the support rod 238 on the outer wall of the rolling ball 234 rotates toward the axis of the barrel 235 under the action of the downward suction force. Therefore, the rolling balls 234 on both sides rotate toward the inside of the barrel 235 at the same time, and one of the support rods 238 touches the bottom end of the knocking rod 236 and presses the bottom end of the knocking rod 236 downward, and the knocking rod 236 and the rotating block 239 are on the support rod. The rod 238 rotates under the action of the rod 238. At this time, the hitting ball 237 at the top of the knocking rod 236 knocks on the inner side of the battery 35. There is a magnetic attraction between the two magnetic blocks 241 at the top of the two knocking rods 236, and a magnetic repulsion between the two magnetic blocks 1 240 at the bottom. After the support rod 238 leaves, the knocking rods 236 on both sides rotate in the opposite direction to their original positions under the action of the magnetic attraction and magnetic repulsion. When the next support rod 238 touches the knocking rod 236 again, the above steps are repeated, so that the hitting ball 237 can continuously hit the inner side of the battery 35, causing the battery 35 to shake. At the same time, the driving component 348 at the top drives the electric push rod 347 to move the battery 35. The movable slider 344 moves back and forth quickly on the movable rod 343, and the slider 344 drives the bottom battery 35 to shake left and right. The fixing assembly 34 not only facilitates the fixing and removal of the battery 35, but also makes the slurry and electrolyte in the battery 35 shake and fall quickly. At the same time, combined with the discharge barrel 23 and the suction pump 22, the slurry and electrolyte in the battery 35 can be quickly transported to the processing device 4 for processing, thereby improving the recovery and processing efficiency of the battery 35 slurry and electrolyte, preventing the decomposition gas and volatile toxic gas generated by the electrolyte from volatilizing quickly to the outside, and solving the problem that the harmful gas volatilized from the electrolyte will pollute the environment.After a period of time, the slurry and electrolyte in the battery 35 completely fall into the discharge barrel 23, and the turntable 32 continues to rotate. The slurry in the next battery 35 also falls into the discharge barrel 23. The slurry and electrolyte in the discharge barrel 23 then pass through the discharge pipe 26 and the guide pipe 47 to the centrifuge 45. The centrifugal motor 46 centrifuges the slurry in the centrifuge 45 to separate it into a positive electrode material solid phase and an N-methylpyrrolidone (NMP) liquid phase. The N-methylpyrrolidone (NMP) liquid phase is recovered through the front separation pipe 42. , realizing the recovery of N-methylpyrrolidone (NMP) liquid phase, the electrolyte is recovered through the separation tube 42, the recovered electrolyte is condensed and adsorbed on activated carbon in a sealed state, the decomposition gas generated by the electrolyte is purified, and the harmful gases of phosphorus pentafluoride and hydrogen fluoride in the decomposition gas can be removed to avoid pollution of the environment, solving the problem of harmful gas leakage in the waste battery electrolyte recovery process in the prior art; the positive electrode material solid phase reaches the processing device 44 through the feed pipe 43 for processing, The cathode material solid phase first falls on the top of the calcining turntable 442. The stopper 449 acts as a barrier to prevent the cathode material solid phase on the calcining turntable 442 from falling downward. There is a high-temperature calcination component in the stopper 449. The cathode material solid phase is subjected to high-temperature calcination treatment on the top of the calcining turntable 442. After the treatment is completed, the connecting rod 443 is rotated. The connecting rod 443 drives the calcining turntable 442 to rotate, and the slots 4411 of the calcining turntable 442 rotate outward, so that the processed cathode material solid phase falls downward on the top of the crushing plate 444. The rotating motor 4412 drives the bottom pulverizing blade 445 to rotate at high speed. The pulverizing blade 445 can crush the solid phase of the positive electrode material on the top of the pulverizing plate 444 into powder. The solid phase of the positive electrode material powder then flows downward to the acid leaching cylinder 446 for acid leaching recovery, realizing the recycling of various metal elements in the positive electrode slurry material. At the same time, this processing method has a higher recovery rate of metal elements in the positive electrode material and a higher efficiency during the operation, achieving the highest resource recovery rate. The operation process is simple and the work efficiency is high.

[0047] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any 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. An efficient pre-processing and recycling device for waste batteries, comprising a base plate (1), a recycling device (2), a conveying device (3) and a processing device (4), wherein one end of the top of the base plate (1) is fixedly mounted to the bottom of the conveying device (3), and the other end of the top of the base plate (1) is fixedly mounted to the bottom of the processing device (4), characterized in that: The conveying device (3) includes a controller (31), a turntable (32) and a support frame (36). The top of the turntable (32) is movably mounted on the bottom of the controller (31). A plurality of fixed components (34) are evenly arranged on the bottom of the turntable (32). The fixed components (34) include a mounting block (341), a movable rod (343), a slider (344), a vacuum negative pressure pump (345) and a suction cup (346). Two extension rods (342) are symmetrically fixedly connected to the two ends of the bottom of the mounting block (341). The movable rod (343) is fixedly mounted on the bottom of the turntable (32). The two ends are fixedly mounted on the bottom of the extension rod (342), and the outer wall of the movable rod (343) is slidably connected to the inner wall of the slider (344). One end of the movable rod (343) is fixedly connected to the driving component (348). An electric push rod (347) is provided inside the movable rod (343). One end of the electric push rod (347) is movably mounted on one end of the driving component (348), and the other end of the electric push rod (347) is movably mounted on one end of the slider (344). The top of the vacuum negative pressure pump (345) is fixedly mounted on the bottom of the slider (344). The processing device (4) comprises a base (41), a feeding pipe (43), a centrifuge (45), a guide pipe (47) and a recovery processing cylinder (44). The recovery processing cylinder (44) comprises a shell (447), a top cover (441), a connecting rod (443), a crushing plate (444), an acid leaching cylinder (446), a rotating motor (4412) and a stopper (449). The inner side of the top end of the shell (447) is fixedly connected to a fixing ring (4410). The inner wall of the fixed ring (4410) is slidably connected to the outer wall of the calcining turntable (442), a slot (4411) is provided through one end of the top of the calcining turntable (442), the top of the fixed ring (4410) is fixedly installed to the bottom of the stopper (449), the top of the calcining turntable (442) is fixedly connected to the bottom of the connecting rod (443), the top of the crushing plate (444) is movably connected to the bottom of the rotating motor (4412), and a plurality of crushing blades (445) are evenly arranged on the outer side of the bottom end of the rotating motor (4412).

2. The high-efficiency pretreatment and recycling equipment for waste batteries according to claim 1 is characterized in that: The inner wall of the shell (447) is fixedly mounted to the outer wall of the crushing plate (444), the bottom inner wall of the shell (447) is fixedly connected to the bottom of the pickling cylinder (446), and a guide pipe (448) is provided on one side of the pickling cylinder (446).

3. The high-efficiency pretreatment and recycling equipment for waste batteries according to claim 1 is characterized in that: The top of the housing (447) is fixedly mounted to the bottom of the top cover (441), and the bottom of the housing (447) is fixedly mounted to one end of the top of the bottom plate (1).

4. The high-efficiency pretreatment and recycling equipment for waste batteries according to claim 1 is characterized in that: A battery (35) is provided at the bottom of the suction cup (346), the top of the base (41) is fixedly mounted to the bottom of the centrifuge (45), and a centrifugal motor (46) is provided at the top of the centrifuge (45).

5. The high-efficiency pretreatment and recycling equipment for waste batteries according to claim 1 is characterized in that: The front side of the centrifuge (45) is fixedly connected to a separation pipe (42), one end of the top of the centrifuge (45) is fixedly connected to one end of the guide pipe (47), and one side of the centrifuge (45) is fixedly connected to one end of the feed pipe (43).

6. The high-efficiency pretreatment and recycling equipment for waste batteries according to claim 1 is characterized in that: One end of the feed pipe (43) is fixedly connected to the top of the top cover (441), the top of the mounting block (341) is fixedly connected to the bottom of the turntable (32), the top of the support frame (36) is fixedly connected to the bottom of the controller (31), and the bottom of the support frame (36) is fixedly mounted to the top of the base plate (1).

7. The high-efficiency pretreatment and recycling equipment for waste batteries according to claim 1 is characterized in that: A plurality of connecting lines (33) are provided on the top of the turntable (32), and the recovery device (2) comprises a fixed plate (21), an air suction pump (22), a discharge barrel (23) and a carrying ring (27), the outer wall of the discharge barrel (23) is fixedly mounted to the inner side of the carrying ring (27), and a through hole (24) is provided at the bottom of the discharge barrel (23).

8. The high-efficiency pre-treatment and recycling equipment for waste batteries according to claim 7 is characterized in that: The top of the fixed plate (21) is fixedly mounted to the bottom of the suction pump (22), the top of the suction pump (22) is movably connected to the bottom of the discharge barrel (23), and one side of the bottom end of the discharge barrel (23) is fixedly connected to a discharge pipe (26).

9. The high-efficiency pre-treatment and recycling equipment for waste batteries according to claim 8, characterized in that: One end of the discharge pipe (26) is fixedly connected to one end of the guide pipe (47), and the bottom of the supporting ring (27) is evenly fixedly connected to four support rods (25), and the bottom of the support rods (25) is fixedly installed with the top of the fixed plate (21).

10. The high-efficiency pre-processing and recycling equipment for waste batteries according to claim 7, characterized in that: The unloading barrel (23) comprises a barrel (235), a knocking rod (236), a ring (233) and a striking ball (237). The top of the barrel (235) is fixedly mounted to the bottom of the ring (233). Two second bearing rods (232) are symmetrically fixedly connected to the inner side of the top of the barrel (235). The outer wall of the second bearing rod (232) is rotatably connected to a rolling ball (234). The outer wall of the rolling ball (234) is evenly fixedly connected to three supporting rods (238). Two load-bearing rods (231) are symmetrically fixedly connected to the inner side of (235), and a rotating block (239) is movably connected to the outer wall of the load-bearing rod (231). The inner side of the rotating block (239) is fixedly installed with the bottom end of the knocking rod (236), and the top of the knocking rod (236) is fixedly connected with the bottom of the hitting ball (237). A magnetic block (241) is provided on the inner side of the top end of the knocking rod (236), and a magnetic block (240) is provided on the inner side of the bottom end of the knocking rod (236).