中国粉体技术2012，Vol.18Issue(6)：58-61,70,5.DOI:10.3969/j.issn.1008-5548.2012.06.014
液-固流化床回收废旧印刷电路板金属研究
Research on Recovery of Waste Printed Circuit Boards Metal Using Liquid-Solid Fluidized Bed
摘要
Abstract
Waste printed circuit board recycling was analyzed using liquid-solid fluidized bed. By the moving mechanization of grains in fluidized bed, the different settling velocities of grains in fluidized bed were calculated. The factors which could influence the settling velocity were inquired. The results show that the settling velocity of grains becomes higher with density and grain size being greater, and its settling velocity becomes lower with grains volume concentration. Separating from different levels of grains and feeding amounts, the metal recovery declines while the grade of metal shows an upward trend along with the increase of rising water speed. In the test scope, the feeding amount has little effects on the results of sorting between the metal and nonmetal in liquid-solid fluidized bed.关键词
液-固流化床/废旧印刷电路板/金属回收Key words
liquid-solid fluidized bed/ waste printed circuit board/ metal recovery分类
通用工业技术引用本文复制引用
铁占续,舒建峰,于宁涛..液-固流化床回收废旧印刷电路板金属研究[J].中国粉体技术,2012,18(6):58-61,70,5.基金项目
河南省重点科技攻关项目,编号:082102230031 （）
河南省重点学科流体机械及工程项目,编号:507907.感谢河南理工大学博士基金项目(编号:648457)对本研究的大力支持！ （编号:648457）
