Search

CN-122025891-A - Automobile waste lithium battery recovery device

CN122025891ACN 122025891 ACN122025891 ACN 122025891ACN-122025891-A

Abstract

The invention relates to the technical field of lithium battery recovery, in particular to an automobile waste lithium battery recovery device which comprises a discharging battery filled with saline water, wherein a stirring unit is arranged in the discharging battery and used for stirring the saline water in the discharging battery, a separation plate is horizontally arranged below the stirring unit and used for separating the discharging battery into a reaction cavity and a dirt storage cavity along the vertical direction, a plurality of dropping grooves are uniformly formed in the separation plate, and a collecting unit is arranged in the dirt storage cavity. The invention reduces the temperature difference of the brine in different areas in the discharge cell and ensures the full contact between the lithium battery electrode and the brine.

Inventors

  • YU XUWEN

Assignees

  • 天灿元电子科技(上海)有限公司

Dates

Publication Date
20260512
Application Date
20260212

Claims (10)

  1. 1. An automobile waste lithium battery recovery device comprises a discharge cell (1) filled with saline water; Characterized in that the discharge cell (1) is provided with: The stirring unit (2) is arranged in the discharge tank (1), and the stirring unit (2) is used for stirring the brine in the discharge tank (1); the separation plate (3) is horizontally arranged below the stirring unit (2), the separation plate (3) separates the discharge tank (1) into a reaction cavity and a sewage storage cavity along the vertical direction, and a plurality of dropping grooves (31) are uniformly formed in the separation plate (3); And the collecting unit (4) is arranged in the dirt storage cavity.
  2. 2. The device for recycling waste lithium batteries of automobiles according to claim 1, wherein the stirring unit (2) is composed of a plurality of aeration pipes (21) which are arranged along the length direction of the discharge cell (1).
  3. 3. The automobile waste lithium battery recycling device according to claim 1, wherein a temperature control unit (5) is further arranged in the discharge cell (1), and the temperature control unit (5) comprises: the circulating pipe (51) is arranged at the side part of the discharge tank (1), and two ends of the circulating pipe (51) are communicated with the discharge tank (1); The cooling bin (52) is arranged on one side of the discharge tank (1), the circulating pipe (51) penetrates through the cooling bin (52), and the circulating pipe (51) positioned in the cooling bin (52) is in a serpentine shape; and the temperature sensor is arranged on the side wall of the discharge cell (1).
  4. 4. A waste lithium battery recycling device for automobiles according to claim 3, wherein the cooling bin (52) is designed in a sinking manner.
  5. 5. The automobile waste lithium battery recycling device according to claim 2, wherein a sealing shell (11) is arranged at the upper part of the discharge cell (1), and a bin gate (12) is arranged on the side wall of the sealing shell (11).
  6. 6. The automobile waste lithium battery recycling device according to claim 5, wherein a placement frame (13) is arranged in the sealing shell (11) in a moving manner along the vertical direction, the placement frame (13) is of a frame structure with a switch door (132), water permeable holes (131) are formed in the placement frame (13), and the placement frame (13) is used for storing lithium batteries.
  7. 7. The device for recycling waste lithium batteries of automobiles according to claim 5, characterized in that an exhaust port (111) is formed on the side wall of the sealing shell (11).
  8. 8. The device for recycling waste lithium batteries of automobiles according to claim 1, wherein a scraper (6) is movably arranged on the upper part of the partition plate (3) along the width direction of the discharge cell (1), and a second linear driver (7) for driving the scraper (6) to move is arranged on the upper part of the scraper (6).
  9. 9. The device for recovering waste lithium batteries of automobiles according to claim 1, characterized in that said collecting unit (4) comprises: The spiral blade (41) is rotatably arranged at the bottom of the dirt storage cavity along the length direction of the discharge tank (1); A rotation driver (42) provided at an end of the helical blade (41); The storage bin (43) is arranged on one side of the discharge tank (1) and is communicated with the sewage storage cavity, and the storage bin (43) is used for storing sediment discharged by the spiral blade (41).
  10. 10. The device for recovering waste lithium batteries of automobiles according to claim 9, characterized in that said collecting unit (4) further comprises: a discharge hole (431) arranged on the side wall of the storage bin (43); the lifting frame (44) is arranged in the storage bin (43) in a moving manner along the vertical direction, and a filtering hole is formed in the bottom of the lifting frame (44); And a third linear driver (45) arranged at the top of the storage bin (43) and used for driving the lifting frame (44) to move.

Description

Automobile waste lithium battery recovery device Technical Field The invention relates to the technical field of lithium battery recovery, in particular to an automobile waste lithium battery recovery device. Background In the recovery of waste lithium batteries, the lithium batteries are required to be subjected to processes including discharging, cleaning, crushing, stirring and the like, and in the prior art, the recovery process is required to be completed by means of a whole set of equipment. Chinese patent publication No. CN111446516B discloses a recovery device of waste lithium battery, comprising a discharging battery, a clean water tank, a conveying device, a crushing device, a heating and stirring device, a first separating device, a cooling and stirring device, a second separating device, a bag-type dust remover and an exhaust fan, wherein the discharging battery is connected with the clean water tank, and the lithium battery enters the crushing device through the conveying device to crush metal. The conveying device comprises a belt conveyor and a bucket elevator, one side of the belt conveyor is connected with one side of the bucket elevator, the crushing device comprises a metal shredder, a metal crusher and a first screw conveyor, the other side of the bucket elevator is connected with an inlet of the metal shredder, an outlet of the metal shredder is connected with an inlet of the metal crusher in a sealing manner, and an outlet of the metal crusher is connected with one side of the first screw conveyor. According to the scheme, recovery of the waste lithium battery is achieved, when the lithium battery is discharged, a worker needs to put the lithium battery into the discharge battery, saline water is filled in the discharge battery, the lithium battery needs to be soaked in the saline water for 1-4 hours to finish discharging, but when the lithium battery is discharged, various types of the lithium battery exist, part of soft package batteries float on the surface of the saline water, so that a discharging effect is poor, meanwhile, part of lithium battery damage (such as internal circuit breaking, residual high voltage and the like) exists, a local micro battery loop is formed after the damaged lithium battery contacts with the saline water, local current density is too high, heat is further generated by the battery, the temperature of the saline water is continuously increased, when the temperature of the saline water is too high, thermal runaway of the battery is triggered, and when the damaged battery is soaked in the saline water, toxic waste gas is generated due to leakage of electrolyte of the battery, and toxic gas is overflowed if the discharge battery is open. In addition, along with the continuous treatment process, a large amount of sediment also appears at the bottom of the discharge cell, and the sediment can wrap up the lithium battery at the lower floor, so that the incomplete discharge condition of the lithium battery at the lower floor appears. Disclosure of Invention According to the automobile waste lithium battery recycling device, the problem of uneven temperature and sediment wrapping in the discharging process of the lithium battery is effectively solved by arranging the stirring unit and the partition plate horizontally arranged. The stirring unit adopts an aeration pipe distributed along the length of the discharge tank, blows air into the brine to realize bottom-up billowing stirring, thereby reducing the temperature difference of the brine in different areas in the discharge tank, avoiding thermal runaway or hindered discharge of the lithium battery caused by local high temperature, avoiding the problems of collision and corrosion of the traditional stirring blade and the lithium battery, and simultaneously generating impact on sediment attached to the surface of the lower lithium battery. In order to solve the problems in the prior art, the invention provides an automobile waste lithium battery recycling device, which comprises an discharging battery filled with saline water; The discharge cell is provided with: the stirring unit is arranged in the discharge cell and is used for stirring the brine in the discharge cell; The separation plate is horizontally arranged below the stirring unit, the separation plate separates the discharge cell into a reaction cavity and a sewage storage cavity along the vertical direction, and a plurality of falling grooves are uniformly formed in the separation plate; And the collecting unit is arranged in the dirt storage cavity. Preferably, the stirring unit is composed of a plurality of aeration tubes arranged along the length direction of the discharge cell. Preferably, a temperature control unit is further provided in the discharge cell, and the temperature control unit includes: the circulating pipe is arranged at the side part of the discharge cell, and both ends of the circulating pipe are communicated with the discharge ce