Analysis of stirred mill performance using DEM simulation: Part 2 - Coherent flow structures, liner stress and wear, mixing and transport

Cleary, P. W., Sinnott, M. and Morrison, R. (2006) Analysis of stirred mill performance using DEM simulation: Part 2 - Coherent flow structures, liner stress and wear, mixing and transport. Minerals Engineering, 19 15: 1551-1572.


Author Cleary, P. W.
Sinnott, M.
Morrison, R.
Title Analysis of stirred mill performance using DEM simulation: Part 2 - Coherent flow structures, liner stress and wear, mixing and transport
Journal name Minerals Engineering  (ERA 2012 Listed)    (ERA 2010 Rank A*)   Check publisher's open access policy
Publication date 2006
Sub-type Article
DOI 10.1016/j.mineng.2006.08.013
Volume number 19
Issue number 15
ISSN 0892-6875
Start page 1551
End page 1572
Total pages 22
Editor B. A. Wills
Place of publication Oxford, UK
Publisher Pergamon - Elsevier Sc. Ltd.
Collection year 2006
Language eng
Subject C1
290702 Mineral Processing
640300 First Stage Treatment of Ores and Minerals
Abstract Stirred Mills are becoming increasingly used for fine and ultra-fine grinding. This technology is still poorly understood when used in the mineral processing context. This makes process optimisation of such devices problematic. 3D DEM simulations of the flow of grinding media in pilot scale tower mills and pin mills are carried out in order to investigate the relative performance of these stirred mills. In the first part of this paper, media flow patterns and energy absorption rates and distributions were analysed to provide a good understanding of the media flow and the collisional environment in these mills. In this second part we analyse steady state coherent flow structures, liner stress and wear by impact and abrasion. We also examine mixing and transport efficiency. Together these provide a comprehensive understanding of all the key processes operating in these mills and a clear understanding of the relative performance issues. (C) 2006 Elsevier Ltd. All rights reserved.
Keyword Engineering, Chemical
Mineralogy
Mining & Mineral Processing
Discrete Element Modelling
Simulation
Comminution
Fine Particle Processing
Ball Mills
Motion
Media
Q-Index Code C1

 
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Created: Wed, 15 Aug 2007, 08:06:14 EST