Slurry flow in a tower mill

Sinnott, Matt, Cleary, Paul W. and Morrison, Robert D. (2011) Slurry flow in a tower mill. Minerals Engineering, 24 2: 152-159. doi:10.1016/j.mineng.2010.11.002

Author Sinnott, Matt
Cleary, Paul W.
Morrison, Robert D.
Title Slurry flow in a tower mill
Journal name Minerals Engineering   Check publisher's open access policy
ISSN 0892-6875
Publication date 2011-01-01
Year available 2010
Sub-type Article (original research)
DOI 10.1016/j.mineng.2010.11.002
Open Access Status Not yet assessed
Volume 24
Issue 2
Start page 152
End page 159
Total pages 8
Place of publication Oxford, England
Publisher Pergamon Press
Language eng
Subject 2207 Control and Systems Engineering
1600 Chemistry
1909 Geotechnical Engineering and Engineering Geology
2210 Mechanical Engineering
Abstract Tower mills are a commonly used device for fine grinding in the mineral processing industry and can be used for dry or wet-grinding applications. In wet grinding, the nature of the slurry flow plays an important role in transporting feed rock and ground fines inside the mill and also assists discharge from the mill. Operating conditions and impeller design can affect the slurry distribution within the mill with some regions of the charge potentially being drier and others saturated. To help understand the slurry distribution and transport we use a two stage modelling process. The Discrete Element Method (DEM) is used to characterise the motion and distribution of the grinding media in the tower mill. The averaged voidage distribution and steady velocity field from the DEM model is then used to define a dynamic porous media in the fluid model. The Smoothed Particle Hydrodynamics (SPH) method is used for modelling the fluid flow because of the free surface and the moving impeller. The one way coupled DEM/SPH model is then used to assess how the fluid distribution and flow pattern of the slurry in a tower mill are to variations in the slurry viscosity. © 2010 Elsevier Ltd. All rights reserved.
Keyword Comminution
Computational fluid dynamics
Discrete element modelling
Q-Index Code CX
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Available online 10 December 2010

Document type: Journal Article
Sub-type: Article (original research)
Collections: Julius Kruttschnitt Mineral Research Centre Publications
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Citation counts: TR Web of Science Citation Count  Cited 13 times in Thomson Reuters Web of Science Article | Citations
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Created: Thu, 27 Jan 2011, 19:54:30 EST by Karen Holtham on behalf of Julius Kruttschnitt Mineral Research Centre