Paper Titles

Research on Liberation Mechanism of the Impact Crushing Waste Printed Circuit Board

Abstract:

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.

You might also be interested in these eBooks

Environment Materials and Environment Management, EMEM2010

View Preview

Info:

Periodical:

Advanced Materials Research (Volumes 113-116)

Pages:

730-734

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.113-116.730

Citation:

Cite this paper

Online since:

June 2010

Authors:

Chen Long Duan, Yue Min Zhao, Jing Feng He, Nian Xin Zhou

Keywords:

impact crushing, Liberation, Selective Crushing, Size Distribution, Waste PCB

Export:

RIS, BibTeX

Price:

Permissions:

Request Permissions

References

[1] Cui Jirang, Forssberg Eric: Journal of Hazardous Materials, Vol. 99 (2003), pp.243-263.

Google Scholar

[2] DUAN Chen-long, ZHAO Yue-min, TANG Li-gang, et al: Journal of Central South University, Vol. 40 (2009), pp.78-82. (In Chinese).

Google Scholar

[3] Yuemin Zhao, Xuefeng Wen, Beibei Li, et al: Journal of Minerals & Metallurgical Processing. Vol. 21 (2004), pp.99-102.

Google Scholar

[4] Chenlong Duan, Xuefeng Wen, Changsheng Shi, et al: Journal of Hazardous Materials, Vol. 166(2009), pp.478-482.

Google Scholar

[5] ZHAO Yue-min, WANG Quan-qiang, JIAO Hong-guang, et al: Journal of China University of Mining & Technology, Vol. 34(2005) , p.683−687. (In Chinese).

Google Scholar