The contribution of DEM to the science of comminution

Weerasekara, N. S., Powell, M. S., Cleary, P. W., Tavares, L. M., Evertsson, M., Morrison, R. D., Quist, J. and Carvalho, R. M. (2013) The contribution of DEM to the science of comminution. Powder Technology, 248 3-24. doi:10.1016/j.powtec.2013.05.032

Author Weerasekara, N. S.
Powell, M. S.
Cleary, P. W.
Tavares, L. M.
Evertsson, M.
Morrison, R. D.
Quist, J.
Carvalho, R. M.
Title The contribution of DEM to the science of comminution
Journal name Powder Technology   Check publisher's open access policy
ISSN 0032-5910
Publication date 2013
Year available 2013
Sub-type Article (original research)
DOI 10.1016/j.powtec.2013.05.032
Volume 248
Start page 3
End page 24
Total pages 22
Place of publication Lausanne, Switzerland
Publisher Elsevier SA
Collection year 2014
Language eng
Formatted abstract
The ability to model comminution techniques has been key in the mineral processing industry and other industries where size reduction of rocks is a key focus. With the need for more accurate and sophisticated models, the introduction of computational models like the discrete element method (DEM) has started to solve some of the complex problems in comminution. This review article provides a general, though not exhaustive, overview of the application of computational techniques to the science of comminution.Over the last two decades the DEM has become an important tool for understanding comminution fundamentals and providing information for the design, optimisation and operation of comminution devices. Over that time, the application of DEM in simulating fracture, breakage, crushing, milling and equipment wear has increased in size and complexity. Information from DEM has contributed to modelling techniques like, mechanistic modelling, the Unified Comminution Model and the Virtual Comminution Machine. These have enabled step changes in understanding of comminution processes. DEM is now widely used in industries where comminution is critical.Important challenges remain for the next decade including representation of unresolved fine material: prediction of its influence on the overall processes and its size reduction. Similarly, slurry phase transport and rheology have barely been touched on in using computational techniques in comminution modelling. Most importantly in the future is the uptake of the DEM outputs into standard comminution models used in design and optimisation of equipment and processes, as despite the progress made in understanding and in quantitative outputs the barriers to routine uptake have not been surmounted
Keyword Comminution
Grinding mills
Liner wear modelling
Mechanistic models
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 2014 Collection
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Citation counts: TR Web of Science Citation Count  Cited 40 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 53 times in Scopus Article | Citations
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Created: Thu, 11 Jul 2013, 16:02:01 EST by Karen Holtham on behalf of Julius Kruttschnitt Mineral Research Centre