Slurry flow in a tower mill

Sinnott, Matthew D., Cleary, Paul W. and Morrison, Rob D. (2009). Slurry flow in a tower mill. In: P. J. Witt and M. P. Schwarz, Proceedings of the 7th International Conference on CFD in the Minerals and Process Industries. Seventh International Conference on CFD in the Minerals and Process Industries, Melbourne, VIC, Australia, (1-7). 9-11 December, 2009.


Author Sinnott, Matthew D.
Cleary, Paul W.
Morrison, Rob D.
Title of paper Slurry flow in a tower mill
Conference name Seventh International Conference on CFD in the Minerals and Process Industries
Conference location Melbourne, VIC, Australia
Conference dates 9-11 December, 2009
Proceedings title Proceedings of the 7th International Conference on CFD in the Minerals and Process Industries
Place of Publication Clayton South, VIC, Australia
Publisher CSIRO
Publication Year 2009
Year available 2010
Sub-type Fully published paper
ISBN 9780643098251
Editor P. J. Witt
M. P. Schwarz
Start page 1
End page 7
Total pages 7
Collection year 2010
Language eng
Abstract/Summary 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.
Subjects E1
840399 First Stage Treatment of Ores and Minerals not elsewhere classified
091404 Mineral Processing/Beneficiation
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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Created: Tue, 15 Dec 2009, 14:29:49 EST by Karen Holtham on behalf of Julius Kruttschnitt Mineral Research Centre