DEM modelling of linear evolution and its influence on grinding rate in ball mills

Powell, Malcolm, Nirmal Weerasekara, Cole, S., LaRoche, R.D. and Favier, J. (2011) DEM modelling of linear evolution and its influence on grinding rate in ball mills. Minerals engineering, 24 3-4: 341-351. doi:10.1016/j.mineng.2010.12.012


Author Powell, Malcolm
Nirmal Weerasekara
Cole, S.
LaRoche, R.D.
Favier, J.
Title DEM modelling of linear evolution and its influence on grinding rate in ball mills
Journal name Minerals engineering   Check publisher's open access policy
ISSN 0892-6875
Publication date 2011-02
Sub-type Article (original research)
DOI 10.1016/j.mineng.2010.12.012
Volume 24
Issue 3-4
Start page 341
End page 351
Total pages 12
Place of publication Oxford, United Kingdom
Publisher Pergamon Press
Collection year 2012
Language eng
Formatted abstract Wear of grinding mill liners and lifters plays a major role in the overall efficiency and economics of mineral processing. Change in the shape of lifters as they wear has a significant influence on grinding efficiency, and the annual cost of maintenance and mill down-time depends on the life of both liners and lifters. The Discrete Element Method (DEM) is a computational method for simulating the dynamics of particle processes. This paper presents an analysis of 3D simulation of a grinding mill carried out using the EDEM software package customised to predict the rate of wear of lifter geometry and to enable progressive updating of worn lifter geometry profiles. A simplified breakage rate model is developed as a tool to correlate liner profile to mill performance. The combination of the prediction of liner profile and grinding rate shows promise to provide a powerful tool for advanced mill liner design - providing a means to balance liner life and mill performance over the life of the liner at the liner design stage. © 2011 Elsevier Ltd. All rights reserved.
Keyword DEM
Grinding mills
Liner wear modelling
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Julius Kruttschnitt Mineral Research Centre Publications
Official 2012 Collection
 
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Created: Thu, 05 May 2011, 10:58:10 EST by Karen Holtham on behalf of Julius Kruttschnitt Mineral Research Centre