Waste lithium battery recycling processing equipment sorting method can be divid
Release Time：2022-10-28 Source：Lithium battery recycling equipment Share：
With the development of the electronics industry, China produces a large number of end-of-life lithium-ion batteries every year, and year by year, the future of waste lithium-ion batteries will only be more and more, waste lithium-ion batteries contain some harmful substances, without reasonable treatment, will cause a lot of pollution to the environment. Waste lithium-ion batteries also contain valuable metals such as cobalt, nickel, manganese, lithium and copper, which can be recycled and reused.
Different sorting methods to sort different components of waste lithium-ion batteries to get different sorting effect, the existing sorting methods can be broadly divided into physical methods and chemical methods. The physical process includes: mechanical separation process, heat treatment process, mechanical chemical process, dissolution process. Chemical processes include: acid leaching process, bioleaching process, solvent extraction process, chemical precipitation process, electrochemical process. The process of chemical separation will produce a large amount of waste gas and waste water, which will have a serious impact on the environment if discharged randomly, and the treatment process is more complicated.
The method of recovering electric materials from waste lithium-ion batteries includes the following steps: (1) discharging, drying, disassembling and crushing the mixture obtained from the waste lithium-ion batteries; (2) sieving the mixture using a vibrating screen to obtain materials of different particle size classes (3) the fine particle size class materials obtained mainly consist of electric materials lithium cobaltate and graphite, and this part of the fine particle size class enters a centrifugal sorter for centrifugal sorting; (4) filtering and drying two centrifugal products enriched with lithium cobaltate and graphite, respectively.
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