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

Abstract:

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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.

Info:

Periodical:

Advanced Materials Research (Volumes 113-116)

Edited by:

Zhenyu Du and X.B Sun

Pages:

730-734

DOI:

10.4028/www.scientific.net/AMR.113-116.730

Citation:

C. L. Duan et al., "Research on Liberation Mechanism of the Impact Crushing Waste Printed Circuit Board", Advanced Materials Research, Vols. 113-116, pp. 730-734, 2010

Online since:

June 2010

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Price:

$35.00

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