A lithium battery recovery process

Abstract

The invention belongs to the technical field of lithium battery recovery, in particular to a lithium battery recovery process. The sorting and recovery device in the process comprises a main body, a No. 1 elastic air bag, a motor, a rotating shaft, a feeding port, a crushing unit, a screening module, a sorting unit, a grinding unit and a collection module. The motor is arranged on the top of the main body, one end of the rotating shaft is connected with the motor driving device, the bottom of the rotating shaft is rotatably connected with the screening module, the feeding port is arranged on one side of the motor on the top of the main body, the crushing unit is rotatably connected with the rotating shaft, and the screening module is located between the crushing unit and the sorting unit;The sorting unit is used for sorting the initially crushed metal material with the first screen, and a collection module is fixedly installed at the bottom of the grinding unit. The lithium battery ofthe invention is twice crushed without multiple treatments, has high sorting efficiency, adopts electromagnetic sorting, separates the metal from the positive electrode material and waste residue, and speeds up the recovery of the positive electrode material.

Description

Technical field [0001] The invention belongs to the technical field of lithium battery recycling, and specifically is a lithium battery recycling process. Background technique [0002] Due to the shortage of resources and the need for environmental governance, countries all over the world attach great importance to the recycling and utilization of waste batteries. The management of waste batteries is of urgency. How to recycle and harmless waste batteries is imminent. The existing lithium battery recycling devices adopt Pyrometallurgical and hydrometallurgical processes, a large number of mixed and recycled lithium batteries are only treated in a mixed and indiscriminate manner, and then chemical precipitation and solvent extraction methods are used to separate rare earth elements, impurities, nickel and lead elements in acid solutions Requires secondary processing, cumbersome steps and low processing efficiency, which in turn affects the recovery efficiency of lithium battery ca...

AI Technical Summary

Problems solved by technology

[0004] This technical solution can ensure the secondary crushing of the lithium battery, so that it can avoid secondary processing; however, the electromagnetic separation device of this solution is not sufficient, and there is no effective measure to prevent the metal material from falling off during the magnetic cleaning process, resulting in insufficient magnetic cleaning. Sufficient, so that the positive electrode material output efficiency of this scheme is low, and it needs to be processed again in the production process, and the processing efficiency is low, which affects the recovery efficiency of lithium battery positive electrode materials

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