Research on Liberation Mechanism of the Impact Crushing Waste Printed Circuit Board
The reutilization of waste Printed Circuit Boards (PCB) is a focused topic in the field of environment protection and resource recycling,and the crushing is the crucial process for recycling waste PCB.A hamper impacting crusher was used to achieve metals crushing liberation from non-metals,the liberation mechanism of PCB can be explained by dispersion liberation accompanied disengaging liberation.The Rosin-Rammler distribution model of crushed PCB particle was put forward.The evaluation indexes show that Rosin-Rammler function can accurately describe size distribution of PCB particles because the convergence property R2 is 0.99694 and fitting error E is 4.80658.The selective crushing is appearance with metals concentrated in coarser fraction and non-metals in finer size during comminution processing.The impact crushing is an effective method to metals liberation of PCB particles.
Waste PCB Impact crushing liberation Size distribution Selective Crushing
Chenlong Duan Yuemin Zhao Jingfeng He Nianxin Zhou
School of Chemical Engineering and Technology,China University of Mining and Technology,Xuzhou,China,221116
国际会议
哈尔滨
英文
730-734
2010-07-24（万方平台首次上网日期，不代表论文的发表时间）