离心复合力场回收废弃金属的研究

金属矿山 ›› 2008, Vol. 38 ›› Issue (11): 87-89.

离心复合力场回收废弃金属的研究

石常省¹，马瑞欣¹，唐利刚²，吴发超¹

1.华北科技学院；2.中国矿业大学

收稿日期:2008-09-23 出版日期:2008-11-15 发布日期:2011-07-12
基金资助:
国家自然科学基金资助项目（编号：50574094）。

Research on Metals Recovery from Discarded Printed Circuit Boards by Enhanced Centrifugal Field

Shi Changsheng¹，Ma Ruixin¹，Tang Ligang²，Wu Fachao¹

1. North China Institute of Science and Technology；2.China University of Mining and Technology

Received:2008-09-23 Online:2008-11-15 Published:2011-07-12

摘要/Abstract

摘要： 提出了采用离心复合力场回收金属的新工艺，建立了废弃材料高效离心分选系统，分析了Falcon分选机的分选机理及强化回收机制。本研究引入重选评价指标对Falcon分选机的分选性能进行评价，Falcon分选-0.5 mm级废弃材料时的I值为0.01，数量效率为93.17%，错配物总量为4.5%，取得了良好的分选效果。该工艺成功解决了-0.5 mm级废弃材料中金属富集体回收的难题,为离心分选机的工业化生产提供了理论依据和技术支持。

关键词: 离心复合力场, 金属富集体, 离心分选机

Abstract: Based on the density difference between the components of discarded printed circuit boards, the paper proposes a new process for recovering these metals by enhanced centrifugal field, describes the efficient centrifugal separation system and analyzes the separation mechanism and enhanced recovery system of Falcon separator. Gravity evaluaton indexes are introduced for evaluating the performance of Falcon separator. When Falcon separator was used to treat-0.5mm discarded printed circuit boards, good results were obtained , including an imperfecton value of 0.01, quantitative efficiency of 93.17% and misplaced material content of 4.5%. This process has successfully solved the problem of recovering metal concentrates from -0.5mm discarded printed circuit boards, providing the theoretical basis and technical support of the industrial application of centrifugal separators.

Key words: Enhanced centrifugal field, Metal concentrates, Enhanced centrifugal separation machine

石常省, 马瑞欣, 唐利刚, 吴发超. 离心复合力场回收废弃金属的研究[J]. 金属矿山, 2008, 38(11): 87-89.

SHI Chang-Sheng, MA Rui-Xin, TANG Li-Gang, WU Fa-Chao. Research on Metals Recovery from Discarded Printed Circuit Boards by Enhanced Centrifugal Field[J]. Metal Mine, 2008, 38(11): 87-89.