DEM simulation of abrasion of nonspherical particles in tumbling mill

Khanal, Manoj and Morrison, Rob (2009) DEM simulation of abrasion of nonspherical particles in tumbling mill. Particulate Science and Technology, 27 1: 68-76.


Author Khanal, Manoj
Morrison, Rob
Title DEM simulation of abrasion of nonspherical particles in tumbling mill
Journal name Particulate Science and Technology   Check publisher's open access policy
ISSN 0272-6351
1548-0046
Publication date 2009
Sub-type Article (original research)
DOI 10.1080/02726350802611853
Volume 27
Issue 1
Start page 68
End page 76
Total pages 9
Editor Mazumder, Dr. M. K.
Puri, V. M.
Place of publication Philadelphia, PA, United States
Publisher Taylor and Francis
Collection year 2010
Language eng
Subject C1
840399 First Stage Treatment of Ores and Minerals not elsewhere classified
091404 Mineral Processing/Beneficiation
Formatted abstract Abrasion is a surface breakage event where irregular surfaces of particles are removed. Abrasion produces rounded particles by comminuting irregular edges. Extensive experimental work has been performed to study abrasion events and their process parameters. Very few studies have used the discrete element method (DEM) to study the abrasion behavior of particles. In this regard, the research work uses the DEM simulation of abrasion of nonspherical particles to study the process parameters in a tumbling mill environment. A 1.1 m diameter and 0.2 m length mill with square-shaped lifters of 30 mm cross section has been simulated. Particle trajectories, collision force, collision energy, and energy spectra are evaluated to understand the effect of surface roughness on abrasion. It was observed that as the asperities of the particle decreases, the rate of abrasion decreases. Based on the energy analysis, it was found that the normal collision force (average 0.4 kN) is larger than the tangential collision force (average 0.09 kN) for the considered case, and hence the former maybe more responsible for the abrasion of particles.
Keyword Abrasion
DEM
Nospherical particles
Simulation
Tumbling mill
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
2010 Higher Education Research Data Collection
 
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Created: Thu, 26 Nov 2009, 12:54:49 EST by Karen Holtham on behalf of Julius Kruttschnitt Mineral Research Centre