Experimental study of separation of electronic waste in the pulsing airflow

被引：0

作者：

Wang, Hai-Feng ^{[1
]}

Song, Shu-Lei ^{[1
]}

He, Ya-Qun ^{[1
]}

Zhao, Yue-Min ^{[1
]}

Duan, Chen-Long ^{[1
]}

机构：

[1] Key Laboratory of Coal Processing and Efficient Utilization, School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, China

来源：

Zhongguo Kuangye Daxue Xuebao/Journal of China University of Mining and Technology | 2008年 / 37卷 / 03期

关键词：

Dynamic analysis - Electronic equipment - High speed cameras - Particles (particulate matter) - Pulsatile flow - Separation;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The separation between metal and non-metal materials is the key process for the reclamation of electronic waste. The separation mechanism of particles with different properties was discussed in a pulsing airflow classifier using a high speed camera and particle dynamic analysis system under a frequency of 1.0 Hz and 2.0 Hz, respectively. The results show that the displacement, speed and acceleration of the particle changed regularly and the change cycle is matched with the cycle of pulsing airflow. The accumulation of acceleration effect is contributed to the separation of particles in the pulsing airflow. The separation tests of 2.0-0.5 mm electronic waste in pulsing airflow classifier were conducted. The orthogonal experiments were designed and their results were analyzed using a Design-Expert 6.0 software. A Quadratic model between separation efficiency and different operation variable was proposed, which shows that the interaction of airflow velocity and pulsing frequency on separation efficiency was significant. The separation efficiency of 89.97% was achieved under the optimum conditions.

引用

页码：379 / 383