Pyrolysis flotation recovery equipment for waste battery treatment and method thereof

Abstract

The invention relates to the technical field of battery recycling, in particular to pyrolysis flotation recycling equipment for waste battery treatment and a method thereof.The pyrolysis flotation recycling equipment comprises a flotation barrel and a material receiving barrel arranged outside the flotation barrel, and a material stirring assembly used for stirring out graphite powder on the surface of flotation liquid is arranged in the flotation barrel; the material stirring assembly comprises a shaft rod structure, a plurality of stirring structures regularly arranged on the side wall, close to the top, of the shaft rod structure and a disturbance structure. The shaft rod structure comprises a shaft rod and an inflation channel arranged in the middle of the shaft rod, and the bottom end of the shaft rod is in transmission connection with the disturbance structure through a fixedly-connected linkage mechanism. According to the equipment, the shifting structure is arranged, during flotation, the cleaning block continuously cleans the outer convex side of the shifting plate, and it is avoided that too many floating foam is attached to the shifting plate, and the flotation effect is affected; and meanwhile, by arranging a disturbance structure, powder at the bottom of the flotation barrel can be disturbed during flotation, so that the powder is suspended in flotation liquid and is more easily in contact with bubbles, and the flotation effect is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of battery recycling, and in particular relates to a pyrolysis flotation recycling device and a method for treating waste batteries. Background Art

[0002] With the development of new energy, batteries are used more and more widely. The recycling of used batteries not only reduces the pollution of harmful chemicals in the batteries, but also reduces waste and realizes multiple utilization of materials. When recycling, the batteries need to be pyrolyzed to release metal elements and consume energy, and then the graphite powder is separated by flotation for recycling.

[0003] For example, the invention patent with authorization announcement number CN118142715A discloses a combined flotation device for separating particles of waste lithium-ion battery crushing products in the field of battery recycling technology, including a flotation cell and a controller. A stirring mechanism is arranged in the flotation cell, an aeration mechanism located below the stirring mechanism is arranged at the inner bottom of the flotation cell, a scraper mechanism is arranged at the top opening of the flotation cell, ultrasonic generating mechanisms are fixedly arranged on the outer walls of both sides of the flotation cell, and an automatic liquid injection mechanism and a product recovery mechanism are arranged on the outer sides of the flotation cell; the stirring mechanism is used for stirring the material, the aeration mechanism is used for aerating and foaming the mixed solution, the scraper mechanism is used for scraping off the floating foam, the ultrasonic generating mechanism is used to promote the material stirring process, and the automatic liquid injection mechanism is used for adding the agent.

[0004] Combining the above cases and actual conditions, we found the following problems: when the scraper mechanism scrapes off the foam, the foam easily adheres to the scraper, which not only affects the flotation efficiency, but also the attached foam gradually increases and changes the shape of the scraper. During flotation, the flotation liquid below may be brought out, causing the flotation liquid level to drop, affecting subsequent flotation. Summary of the invention

[0005] The object of the present invention is to provide a pyrolysis flotation recovery device and method for treating waste batteries to solve the above-mentioned problems in the prior art.

[0006] To achieve the above object, the present invention provides a pyrolysis flotation recovery device for waste battery treatment, comprising a flotation barrel for containing flotation liquid and a material receiving barrel arranged outside the flotation barrel, wherein a material removing component for removing graphite powder on the surface of the flotation liquid is arranged in the flotation barrel;

[0007] The material shifting assembly includes a shaft structure concentrically arranged in the middle of the flotation barrel, a plurality of shifting structures regularly arranged on the side wall of the shaft structure near the top, and a disturbance structure for preventing powder from settling to the bottom after battery pyrolysis;

[0008] The shaft structure comprises a shaft and an air filling passage coaxially arranged in the middle of the shaft, and the bottom end of the shaft is transmission-connected to the disturbance structure via a fixed linkage mechanism;

[0009] The toggle structure includes a toggle plate mechanism and a cleaning block for cleaning the toggle plate mechanism, the toggle plate mechanism includes a toggle plate in an arc shape and a sliding plug arranged inside the toggle plate, a sliding cavity adapted to the sliding plug is arranged inside the toggle plate, the sliding plug is arranged in the sliding cavity, a plurality of first communication ports are arranged on the side wall of the shaft rod at positions corresponding to the positions of the plurality of sliding cavities, the two ends of the first communication ports are respectively connected to the corresponding inflation channel and the corresponding sliding cavity, and the inner end surface of the sliding plug is connected to the inner end surface of the corresponding cleaning block by arranging a pull rope;

[0010] The disturbance structure comprises a disturbance plate mechanism and two vertical rods fixed on the left and right sides of the disturbance plate mechanism, and a second spring is sleeved on the vertical rod below the disturbance plate mechanism.

[0011] In the technical solution of the present invention, a discharge notch is provided on the front side of the top surface of the flotation barrel, the bottom surface of the receiving barrel is fixed to the outer side wall of the flotation barrel, and the height of the paddle mechanism is consistent with that of the discharge notch.

[0012] In the technical solution of the present invention, a mounting plate is fixed to the rear side of the inner wall of the flotation barrel, a motor is fixed to the top surface of the mounting plate, a driving tooth is coaxially fixed to the top end of the motor output shaft, the top end of the shaft rod passes through the mounting plate upward, a driven tooth is coaxially fixed to the top end of the side wall of the shaft rod, and the driven tooth is meshed with the driving tooth.

[0013] In the technical solution of the present invention, a sliding rod with the same curvature as the sliding cavity is provided in the sliding cavity, the sliding rod passes through the corresponding sliding plug and the two are slidably connected, and the inner end radius of the sliding rod is larger than the rod body radius.

[0014] In the technical solution of the present invention, limit grooves are symmetrically provided on the upper and lower sides of the inner concave side of the paddle plate, the cleaning surface of the cleaning block is arranged on the outer convex side of the paddle plate, the cleaning block is slidably connected to the paddle plate in a concave shape as a whole, and limit blocks adapted to the limit grooves are fixed on the inner sides of the protruding parts of the upper and lower ends of the cleaning block.

[0015] In the technical solution of the present invention, a limit rod with the same curvature as the limit groove is provided in the limit groove, the limit rod passes through the corresponding limit block and the two are slidably connected, and the outer wall portion of the limit rod located between the limit block and the inner end side wall of the limit groove is sleeved with a first spring.

[0016] In the technical solution of the present invention, a cover barrel is fixed in the middle of the bottom surface of the flotation barrel, the side wall of the cover barrel is provided with a number of regularly distributed openings, the disturbance plate mechanism is arranged in the cover barrel, and the top end of the vertical rod is fixed to the top surface of the cover barrel.

[0017] In the technical solution of the present invention, the disturbance plate mechanism includes a disturbance plate, an insertion rod coaxially fixed to the middle of the top surface of the disturbance plate, and an intermediate plate coaxially fixed to the top of the insertion rod, a piston column is coaxially fixed to the middle of the top surface of the intermediate plate, and extended plates are fixed on the left and right sides of the disturbance plate. The vertical rod passes through the corresponding extended plates and the two are slidably connected, and blocking balls are fixed on the left and right sides of the intermediate plate.

[0018] In the technical solution of the present invention, the linkage mechanism includes a linkage column whose top end is coaxially fixed with the bottom end of the shaft rod and an active chamber arranged in the linkage column. The top surface of the active chamber is connected with the inflation channel by setting a second connecting port. A card slot is provided in the cavity wall of the active chamber. The card slot is composed of four spiral segments and four vertical segments in an alternating manner. The card slot is arranged in the card slot. A plurality of regularly distributed air outlet channels are provided in the side wall of the linkage column. One end of the air outlet channel is connected to the second connecting port, and the other end passes through the end surface of the bottom end of the linkage column. The intermediate plate is arranged in the active chamber and the two are slidably connected. The piston column is arranged in the second connecting port.

[0019] On the other hand, the present invention also provides a pyrolysis flotation recovery method for waste battery treatment, using the above-mentioned pyrolysis flotation recovery equipment for waste battery treatment, comprising the following steps:

[0020] S1. The battery after high-temperature pyrolysis is crushed and sent into the flotation barrel and an appropriate amount of flotation liquid is added. Then the motor is started and the shaft is driven to rotate clockwise through the driving gear and the driven gear, thereby driving the paddle to poke the foam on the surface of the flotation liquid into the receiving barrel through the discharge notch;

[0021] S2, while starting the motor, inflate the air in the air channel through an external air pump, the air pressure inside the air channel will increase and push the sliding plug to slide toward the outer end of the sliding cavity, and then pull the cleaning block inward through the pull rope to pull the cleaning plate;

[0022] S3, when the shaft rotates, the linkage column is driven to rotate synchronously, and the middle plate is moved downward and the second spring is compressed through the spiral section of the card slot and the card ball, until the piston column moves down to the air outlet channel to leak out. At this time, air is introduced into the flotation liquid to form a large number of bubbles, driving the graphite powder to float upward to form foam. At the same time, the air pressure in the inflation channel drops, and the first spring will push the limit block to drive the cleaning block to reset;

[0023] S4, when the card slot rotates to the vertical section and contacts the card ball, the compressed second spring pushes the disturbance plate mechanism upward to make the disturbance plate move upward quickly, thereby greatly disturbing the bottom of the flotation liquid, so that the battery pyrolysis powder at the bottom is suspended in the flotation liquid;

[0024] S5. During the flotation process, the motor continuously drives the shaft to rotate, thereby realizing the cycle of steps S1-S4 until the flotation is completed.

[0025] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0026] 1. In the present invention, a paddle plate structure is provided, and a motor is started to drive the shaft to rotate and paddle the floating foam, and air is inflated into the inflation channel through an external air pump. The air pressure inside the inflation channel will increase and push the sliding plug to slide toward the outer end of the sliding cavity, and then the cleaning block is pulled inward by a pull rope to pull the cleaning paddle plate. When the shaft rotates, the linkage column is driven to rotate synchronously, and the middle plate is moved downward by the card slot and the card ball until the piston column moves down to the air outlet channel to leak out. At this time, the air pressure in the inflation channel drops, and the first spring pushes the cleaning block to reset, and the floating foam is cleaned by the cleaning block to prevent the floating foam from adhering to reduce the flotation efficiency.

[0027] 2. In the present invention, by providing a disturbance structure, when the card slot rotates to the vertical section and contacts the card ball, the compressed second spring pushes the disturbance plate mechanism upward to make the disturbance plate move up quickly, thereby greatly disturbing the bottom of the flotation liquid, so that the battery pyrolysis powder at the bottom is suspended in the flotation liquid, ensuring that the graphite powder therein is more easily in contact with the introduced gas, without the need to use ultrasonic disturbance, reducing the flotation cost, and compared with the ultrasonic device, the operation is simpler and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the internal structure of the overall structure of the present invention;

[0030] Figure 3 It is a schematic diagram of the material shifting assembly in the present invention;

[0031] Figure 4 is a cross-sectional view of the central axis of the present invention;

[0032] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0033] Figure 6 It is an exploded view of the paddle structure in the present invention;

[0034] Figure 7 For the present invention Figure 6 Enlarged view of point B in the middle;

[0035] Figure 8 It is a schematic diagram of the disturbance structure in the present invention;

[0036] Fig. 9 It is a cross-sectional view of the linkage column in the present invention;

[0037] Fig.10 It is a cross-sectional view from another perspective of the linkage column in the present invention;

[0038] Description of reference numerals:

[0039] 1. Flotation barrel; 11. Mounting plate; 12. Discharge notch;

[0040] 2. Material receiving barrel;

[0041] 3. Material shifting assembly; 31. Motor; 311. Active tooth; 32. Shaft structure; 321. Shaft; 3211. First connecting port; 322. Driven tooth; 323. Inflatable channel; 324. Linkage mechanism; 3241. Linkage column; 3242. Air outlet channel; 3243. Slot; 3244. Second connecting port; 3245. Active cavity; 33. Steering structure; 331. Steering plate mechanism; 3311. Steering plate; 3312. Limiting groove; 3313. Limiting Rod; 3314, first spring; 3315, sliding cavity; 3316, sliding rod; 3317, sliding plug; 3318, pull rope; 332, cleaning block; 3321, limit block; 34, disturbance structure; 341, disturbance plate mechanism; 3411, disturbance plate; 3412, extension plate; 3413, plug rod; 3414, middle plate; 3415, piston column; 3416, card ball; 342, vertical rod; 343, second spring; 35, cover barrel; 351, opening. DETAILED DESCRIPTION

[0042] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation modes.

[0043] Unless explicitly stated otherwise, throughout the specification, the term “comprise” or variations thereof such as “include” or “comprising” will be understood as including the stated elements or components but not excluding other elements or components.

[0044] Reference Figure 1-Figure 10 As shown, this embodiment provides a technical solution:

[0045] A pyrolysis flotation recovery device for waste battery treatment, comprising a flotation barrel 1 for containing flotation liquid and a material receiving barrel 2 arranged outside the flotation barrel 1, the bottom surfaces of the flotation barrel 1 and the bottom surfaces of the material receiving barrel 2 are both provided with discharge ports, which are not shown in the figure, and a material dispensing component 3 for dispensing graphite powder on the surface of the flotation liquid is provided in the flotation barrel 1;

[0046] The material shifting assembly 3 includes an axial rod structure 32 concentrically arranged in the middle of the flotation barrel 1, a plurality of shifting structures 33 regularly arranged on the side wall of the axial rod structure 32 near the top, and a disturbance structure 34 for preventing the powder from settling to the bottom after the battery is pyrolyzed. The disturbance structure 34 is arranged to disturb the powder after the battery is pyrolyzed, so as to prevent the powder from settling to the bottom, which makes it difficult for the graphite powder therein to contact with the bubbles, thereby affecting the flotation effect.

[0047] The shaft structure 32 includes a shaft 321 and an air filling passage 323 coaxially arranged in the middle of the shaft 321. The bottom end of the shaft 321 is transmission-connected to the disturbance structure 34 through a fixed linkage mechanism 324.

[0048] The toggle structure 33 includes a toggle mechanism 331 and a cleaning block 332 for cleaning the toggle mechanism 331. The toggle mechanism 331 includes a toggle plate 3311 in an arc shape and a sliding plug 3317 arranged inside the toggle plate 3311. The cleaning block 332 is in close contact with the outer convex part of the toggle plate 3311. The toggle plate 3311 is provided with a sliding cavity 3315 adapted to the sliding plug 3317. The sliding plug 3317 is arranged in the sliding cavity 3315. The side wall of the shaft rod 321 is provided with a plurality of first connecting ports 3211 at positions corresponding to the positions of the plurality of sliding cavities 3315. The two ends of the first connecting port 3211 are respectively connected to the corresponding The inflation channel 323 is connected to the corresponding sliding cavity 3315, and the inner end surface of the sliding plug 3317 is connected to the inner end surface of the corresponding cleaning block 332 by setting a pull rope 3318. When the inflation channel 323 is inflated, the air pressure inside the inflation channel 323 will increase, which will push the sliding plug 3317 outward, and then pull the cleaning block 332 to move the cleaning plate 3311 inward through the pull rope 3318. It should be noted that the pull rope 3318 passes through the first connecting port 3211 and is connected to the cleaning block 332. The diameter of the pull rope 3318 is slightly larger than the diameter of the perforation to ensure sealing.

[0049] The disturbance structure 34 includes a disturbance plate mechanism 341 and two vertical rods 342 fixed on the left and right sides of the disturbance plate mechanism 341. A second spring 343 is sleeved on the vertical rod 342 below the disturbance plate mechanism 341. When the shaft rod 321 rotates, it will drive the disturbance plate mechanism 341 to move up and down through the linkage mechanism 324 to disturb the bottom of the flotation liquid.

[0050] Specifically, Figure 1As shown, a discharge notch 12 is provided on the front side of the top surface of the flotation barrel 1, the bottom surface of the receiving barrel 2 is fixed to the outer wall of the flotation barrel 1, the paddle mechanism 331 is consistent with the height of the discharge notch 12, the height of the discharge notch 12 is slightly lower than the height of the flotation barrel 1, the liquid level of the flotation liquid is the same as the height of the discharge notch 12, and when the paddle 3311 rotates clockwise, the convex side will drive the foam on the surface of the flotation liquid into the receiving barrel 2 from the discharge notch 12.

[0051] In addition, if Figure 1-Figure 2 As shown, a mounting plate 11 is fixed to the rear side of the inner wall of the flotation barrel 1, a motor 31 is fixed to the top surface of the mounting plate 11, a driving tooth 311 is coaxially fixed to the top end of the output shaft of the motor 31, the top end of the shaft 321 passes through the mounting plate 11 upward, the shaft 321 is rotatably connected to the mounting plate 11, a driven tooth 322 is coaxially fixed to the top end of the side wall of the shaft 321, the driven tooth 322 is meshed with the driving tooth 311, and the entire shaft 321 is driven to rotate by the motor 31, and for the needs of flotation, the rotation speed of the shaft 321 is relatively low.

[0052] Specifically, Figure 3-Figure 7 As shown, a sliding rod 3316 with the same curvature as the sliding cavity 3315 is provided in the sliding cavity 3315, and the sliding rod 3316 passes through the corresponding sliding plug 3317 and the two are slidably connected. The radius of the inner end of the sliding rod 3316 is larger than the radius of the rod body to prevent the sliding plug 3317 from detaching from the sliding rod 3316, resulting in the sliding plug 3317 being unable to slide.

[0053] Furthermore, the concave side of the dial plate 3311 is symmetrically provided with limit grooves 3312, the cleaning surface of the cleaning block 332 is arranged on the convex side of the dial plate 3311, the cleaning block 332 is slidably connected to the dial plate 3311 in a concave shape as a whole, and the inner sides of the protruding parts at the upper and lower ends of the cleaning block 332 are fixed with limit blocks 3321 adapted to the limit grooves 3312, and the limit blocks 3321 slide along the limit grooves 3312 to prevent the cleaning block 332 from being separated from the dial plate 3311;

[0054] A limiting rod 3313 with the same curvature as the limiting groove 3312 is provided in the limiting groove 3312, the limiting rod 3313 passes through the corresponding limiting block 3321 and the two are slidably connected, and the outer wall portion of the limiting rod 3313 located between the limiting block 3321 and the inner end side wall of the limiting groove 3312 is sleeved with a first spring 3314. By setting the first spring 3314, after the cleaning block 332 moves to the inner end, the cleaning block 332 is driven to slide to the outer end and reset.

[0055] In addition, if Figure 8-Figure 10As shown, a cover barrel 35 is fixed to the middle of the bottom surface of the flotation barrel 1, and a plurality of regularly distributed openings 351 are provided on the side wall of the cover barrel 35. A disturbance plate mechanism 341 is arranged in the cover barrel 35, and the top end of the vertical rod 342 is fixed to the top surface of the cover barrel 35. The cover barrel 35 is provided to fix the vertical rod 342 and restrict the disturbance plate mechanism 341 to avoid the disturbance plate mechanism 341 from rotating, and the opening 351 can avoid blocking the flow of the flotation liquid.

[0056] Specifically, the disturbance plate mechanism 341 includes a disturbance plate 3411, a rod 3413 coaxially fixed to the middle of the top surface of the disturbance plate 3411, and an intermediate plate 3414 coaxially fixed to the top of the rod 3413. A piston column 3415 is coaxially fixed to the middle of the top surface of the intermediate plate 3414. Outer plates 3412 are fixed to the left and right sides of the disturbance plate 3411. The vertical rod 342 passes through the corresponding outer plates 3412 and the two are slidably connected. Cardan balls 3416 are fixed to the left and right sides of the intermediate plate 3414. When the disturbance plate 3411 is driven by the second spring 343 to move rapidly upward, the flotation liquid at the bottom will be disturbed, so that the powder after battery pyrolysis at the bottom is suspended in the flotation liquid to avoid sinking to the bottom and affecting the flotation effect of the graphite powder.

[0057] Furthermore, the linkage mechanism 324 includes a linkage column 3241 whose top end is coaxially fixed with the bottom end of the shaft rod 321 and an active chamber 3245 arranged in the linkage column 3241. The top surface of the active chamber 3245 is connected with the inflation channel 323 by setting a second connecting port 3244. A card slot 3243 is arranged in the cavity wall of the active chamber 3245. The card slot 3243 is composed of four spiral segments and four vertical segments staggered. The spiral direction of the spiral segment is clockwise from the lower end to the higher end. The card ball 3416 is arranged in the card slot 3243. A plurality of regularly distributed air outlet channels 3242 are arranged in the side wall of the linkage column 3241. One end of the air outlet channel 3242 is connected to the second connecting port 3244 and the other end passes through the bottom end surface of the linkage column 3241. The intermediate plate 3414 is arranged in the active chamber 3245 and the two are slidably connected. The piston column 3415 is arranged in the second connecting port 3244.

[0058] When the shaft 321 rotates clockwise, it will drive the linkage column 3241 to rotate synchronously. When it is just started, the card ball 3416 is located at the top of the spiral section of the card slot 3243. After rotation, the spiral section of the card slot 3243 will give the card ball 3416 a downward pressure, so that the middle plate 3414 drives the disturbance plate 3411 to move downward and compress the second spring 343 until the piston column 3415 moves down to the air outlet channel 3242 to leak out. It should be noted that due to the low rotation speed of the shaft 321, the downward movement speed of the piston column 3415 is slow, and the inflation speed is greater than the downward movement speed of the piston column 3415. When the air in the air channel 323 does not leak, the air in the air channel 323 is always pressurized, thereby ensuring that the air pressure inside the air channel 323 pushes the sliding plug 3317 to slide. At the same time, when the piston rod 3415 moves down to the air outlet channel 3242 and just leaks out, the blocking ball 3416 does not move to the bottom, ensuring that the air inside the air channel 323 is discharged from the air outlet channel 3242, so that the air pressure inside the air channel 323 is reduced to a level that cannot push the sliding plug 3317. At this time, the sliding plug 3317 and the cleaning block 332 can be reset. In addition, when the piston rod 3415 moves to the bottom, it will not be separated from the second connecting port 3244.

[0059] When the card slot 3243 rotates to the vertical section and contacts the card ball 3416, the compressed second spring 343 will quickly drive the disturbance plate 3411 to slide upward, so that the flotation liquid around the disturbance plate 3411 is disturbed and the powder after battery pyrolysis is suspended in the flotation liquid, so as to facilitate the graphite powder attached to the bubbles.

[0060] The present invention also provides a pyrolysis flotation recovery method for waste battery treatment, which uses the above-mentioned pyrolysis flotation recovery equipment for waste battery treatment, comprising the following steps:

[0061] First, the non-metallic parts such as plastic film or shell outside the waste battery are disassembled, and then the waste battery is crushed and sent to a high-temperature pyrolysis furnace for pyrolysis;

[0062] S1, crush the battery after high temperature pyrolysis and send it into the flotation barrel 1 and add a proper amount of flotation liquid, then start the motor 31 and drive the shaft 321 to rotate clockwise through the driving gear 311 and the driven gear 322, thereby driving the paddle 3311 to poke the foam on the surface of the flotation liquid into the receiving barrel 2 through the discharge notch 12;

[0063] S2, while starting the motor 31, the external air pump is used to inflate the air in the air inlet channel 323, the air pressure inside the air inlet channel 323 increases and pushes the sliding plug 3317 to slide toward the outer end of the sliding cavity 3315, and then the cleaning block 332 is pulled inward by the pull rope 3318 to pull the cleaning plate 3311;

[0064] S3, when the shaft 321 rotates, the linkage column 3241 is driven to rotate synchronously, and the middle plate 3414 is moved downward and the second spring 343 is compressed through the spiral section of the card slot 3243 and the card ball 3416, until the piston column 3415 moves down to the air outlet channel 3242 to leak out. At this time, air is introduced into the flotation liquid to form a large number of bubbles, driving the graphite powder to float upward to form foam. At the same time, the air pressure in the inflation channel 323 drops. At this time, the first spring 3314 will push the limit block 3321 to drive the cleaning block 332 to reset;

[0065] S4. When the card slot 3243 rotates to the vertical section and contacts the card ball 3416, the compressed second spring 343 pushes the disturbance plate mechanism 341 upward, so that the disturbance plate 3411 moves upward quickly, thereby greatly disturbing the bottom of the flotation liquid, so that the battery pyrolysis powder at the bottom is suspended in the flotation liquid, ensuring that the graphite powder therein is more easily in contact with the introduced gas;

[0066] S5. During the flotation process, the motor 31 continuously drives the shaft 321 to rotate, thereby implementing the cycle of steps S1-S4 until the flotation is completed.

[0067] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is obvious that many changes and variations are made in accordance with the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different selections and changes. The scope of the present invention is intended to be limited by the specification and its equivalents.

Claims

1. A pyrolysis flotation recovery device for waste battery treatment, comprising a flotation bucket (1) for containing flotation liquid and a receiving bucket (2) arranged outside the flotation bucket (1), characterized in that: The flotation barrel (1) is provided with a material-dispensing assembly (3) for dispensing graphite powder on the surface of the flotation liquid; The material shifting assembly (3) comprises a shaft structure (32) concentrically arranged in the middle of the flotation barrel (1), a plurality of shifting structures (33) regularly arranged on the side wall of the shaft structure (32) near the top, and a disturbance structure (34) for preventing powder from settling to the bottom after battery pyrolysis; The shaft structure (32) comprises a shaft (321) and an air filling passage (323) coaxially arranged in the middle of the shaft (321); the bottom end of the shaft (321) is transmission-connected to the disturbance structure (34) via a fixedly connected linkage mechanism (324); The toggle structure (33) comprises a toggle plate mechanism (331) and a cleaning block (332) for cleaning the toggle plate mechanism (331); the toggle plate mechanism (331) comprises an arc-shaped toggle plate (3311) and a sliding plug (3317) arranged inside the toggle plate (3311); a sliding cavity (3315) adapted to the sliding plug (3317) is arranged inside the toggle plate (3311); and the sliding plug (3317) is arranged inside the sliding cavity (3315). In the cavity (3315), the side wall of the shaft (321) is provided with a plurality of first communication ports (3211) at positions corresponding to the positions of the plurality of sliding cavities (3315), and the two ends of the first communication ports (3211) are respectively connected with the corresponding inflation channel (323) and the corresponding sliding cavity (3315), and the inner end surface of the sliding plug (3317) and the inner end surface of the corresponding cleaning block (332) are connected by a pull rope (3318); The disturbance structure (34) comprises a disturbance plate mechanism (341) and two vertical rods (342) fixed on the left and right sides of the disturbance plate mechanism (341); a second spring (343) is sleeved on the vertical rod (342) and located below the disturbance plate mechanism (341).

2. The pyrolysis flotation recovery equipment for waste battery treatment according to claim 1, characterized in that: A discharge notch (12) is provided on the front side of the top surface of the flotation barrel (1), the bottom surface of the receiving barrel (2) is fixed to the outer side wall of the flotation barrel (1), and the plate mechanism (331) is at the same height as the discharge notch (12).

3. The pyrolysis flotation recovery equipment for waste battery treatment as claimed in claim 2, characterized in that: A mounting plate (11) is fixed to the rear side of the inner wall of the flotation barrel (1), a motor (31) is fixed to the top surface of the mounting plate (11), a driving tooth (311) is coaxially fixed to the top end of the output shaft of the motor (31), the top end of the shaft rod (321) passes through the mounting plate (11) upwards, a driven tooth (322) is coaxially fixed to the side wall of the shaft rod (321) near the top end, and the driven tooth (322) is meshed with the driving tooth (311).

4. The pyrolysis flotation recovery equipment for waste battery treatment as claimed in claim 3, characterized in that: A sliding rod (3316) having the same curvature as the sliding cavity (3315) is provided in the sliding cavity (3315); the sliding rod (3316) passes through the corresponding sliding plug (3317) and the two are slidably connected; the inner end radius of the sliding rod (3316) is greater than the rod body radius.

5. The pyrolysis flotation recovery equipment for waste battery treatment as claimed in claim 4, characterized in that: The concave side of the dial plate (3311) is symmetrically provided with limit grooves (3312) at the upper and lower sides, the cleaning surface of the cleaning block (332) is arranged on the convex side of the dial plate (3311), the cleaning block (332) is slidably connected to the dial plate (3311) in a concave shape as a whole, and the inner sides of the protruding parts at the upper and lower ends of the cleaning block (332) are fixed with limit blocks (3321) adapted to the limit grooves (3312).

6. The pyrolysis flotation recovery equipment for waste battery treatment as claimed in claim 5, characterized in that: A limiting rod (3313) having the same curvature as the limiting groove (3312) is provided in the limiting groove (3312); the limiting rod (3313) passes through the corresponding limiting block (3321) and the two are slidably connected; the outer wall portion of the limiting rod (3313) located between the limiting block (3321) and the inner end side wall of the limiting groove (3312) is sleeved with a first spring (3314).

7. The pyrolysis flotation recovery equipment for waste battery treatment as claimed in claim 6, characterized in that: A cover barrel (35) is fixed in the middle of the inner bottom surface of the flotation barrel (1), a side wall of the cover barrel (35) is provided with a plurality of regularly distributed openings (351), the disturbance plate mechanism (341) is arranged in the cover barrel (35), and the top end of the vertical rod (342) is fixed to the inner top surface of the cover barrel (35).

8. The pyrolysis flotation recovery equipment for waste battery treatment as claimed in claim 7, characterized in that: The disturbance plate mechanism (341) comprises a disturbance plate (3411), an insertion rod (3413) coaxially fixed to the middle of the top surface of the disturbance plate (3411), and an intermediate plate (3414) coaxially fixed to the top of the insertion rod (3413), a piston column (3415) coaxially fixed to the middle of the top surface of the intermediate plate (3414), an extension plate (3412) is fixed on the left and right sides of the disturbance plate (3411), the vertical rod (342) passes through the corresponding extension plate (3412) and the two are slidably connected, and a blocking ball (3416) is fixed on the left and right sides of the intermediate plate (3414).

9. The pyrolysis flotation recovery equipment for waste battery treatment as claimed in claim 8, characterized in that: The linkage mechanism (324) comprises a linkage column (3241) whose top end is coaxially fixed with the bottom end of the shaft (321) and an active cavity (3245) arranged in the linkage column (3241); the top surface of the active cavity (3245) is connected with the inflation channel (323) by means of a second connecting port (3244); a card slot (3243) is arranged in the cavity wall of the active cavity (3245); the card slot (3243) is composed of four spiral segments and four vertical segments interlaced; the card ball (3243) is provided in the cavity wall of the active cavity (3245); The linkage column (3241) is provided with a plurality of regularly distributed air outlet channels (3242) in the side wall thereof, one end of the air outlet channel (3242) is connected to the second connecting port (3244), and the other end thereof passes through the bottom end surface of the linkage column (3241), the intermediate plate (3414) is provided in the movable cavity (3245) and the two are slidably connected, and the piston column (3415) is provided in the second connecting port (3244).

10. A method for pyrolysis flotation recovery of waste batteries, using the pyrolysis flotation recovery equipment for waste batteries according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, crushing the battery after high-temperature pyrolysis and sending it into the flotation barrel (1) and adding a proper amount of flotation liquid, then starting the motor (31) and driving the shaft (321) to rotate clockwise through the driving gear (311) and the driven gear (322), thereby driving the paddle (3311) to pry the foam on the surface of the flotation liquid through the discharge notch (12) and enter the receiving barrel (2); S2, while starting the motor (31), air is inflated into the inflation channel (323) through an external air pump, the air pressure inside the inflation channel (323) increases and pushes the sliding plug (3317) to slide toward the outer end of the sliding cavity (3315), and then the cleaning block (332) is pulled inward by the pull rope (3318) to pull the cleaning plate (3311); S3, when the shaft (321) rotates, the linkage column (3241) is driven to rotate synchronously, and the spiral section of the card slot (3243) and the card ball (3416) are used to move the intermediate plate (3414) downward and compress the second spring (343), until the piston column (3415) moves downward to the air outlet channel (3242) to leak out. At this time, air is introduced into the flotation liquid to form a large number of bubbles, which drive the graphite powder to float upward to form foam. At the same time, the air pressure in the inflation channel (323) decreases. At this time, the first spring (3314) will push the limit block (3321) and drive the cleaning block (332) to reset. S4, when the card slot (3243) rotates to the vertical section and contacts the card ball (3416), the compressed second spring (343) pushes the disturbance plate mechanism (341) upward, so that the disturbance plate (3411) moves upward quickly, thereby greatly disturbing the bottom of the flotation liquid, so that the battery pyrolysis powder at the bottom is suspended in the flotation liquid; S5. During the flotation process, the motor (31) continuously drives the shaft (321) to rotate, thereby implementing the cycle of steps S1-S4 until the flotation is completed.

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