基于热平衡的废旧锂离子电池回收系统二燃室简化用气量预测  

Prediction of liquefied natural gas consumption for secondary combustion chamber based on thermal equilibrium

作　　者：王振宇 郑俊超 WANG Zhenyu;ZHENG Junchao(School of Metallurgy and Environment,Central South University,Changsha Hunan 410083,China)

机构地区：[1]中南大学冶金与环境学院,湖南长沙410083

出　　处：《电源技术》2024年第8期1648-1652,共5页Chinese Journal of Power Sources

摘　　要：基于锂离子电池回收过程中的质热平衡计算,依靠Matlab平台,针对物理破碎预处理过程(破碎-热处理-二燃-急冷),根据电池种类、单位时间投料量,以及二燃室相关结构参数计算过程中所需天然气与助燃空气量,为生产过程中工艺参数调节提供理论支持;或根据所提供预计回收量推演二燃室尺寸,为回收过程精准化控制提供基础。Secondary combustion chamber is one of the most important parts in environmental protection equipment,especially in lithium-ion battery recycling.Since air pollution might be caused by mismatching the quantity of fuel,combustion-aiding air and other organic compound during the combustion process,a prediction method was taken out,based on thermal equilibrium and by using Matlab polyfit function,to work out the usage of LNG and combustion-aiding air.This process can be fitted for different feeding battery type,quantity and the size of combustion chamber,and provide theoretical support for adjusting process parameters in the production process.In addition,the design of the secondary combustion chamber can be based on the prediction result,which can provide a basis for precise control of the recovery process.

关 键 词：锂离子电池回收 二燃室 焚烧 MATLAB polyfit函数 

分 类 号：TM912[电气工程—电力电子与电力传动]