Developments in the understanding of South African style SAG mills

Powell, M. S., Morrell, S. and Latchireddi, S. (2001) Developments in the understanding of South African style SAG mills. Minerals Engineering, 14 10: 1143-1153.


Author Powell, M. S.
Morrell, S.
Latchireddi, S.
Title Developments in the understanding of South African style SAG mills
Journal name Minerals Engineering   Check publisher's open access policy
ISSN 0892-6875
Publication date 2001-10
Sub-type Article (original research)
DOI 10.1016/S0892-6875(01)00132-7
Volume 14
Issue 10
Start page 1143
End page 1153
Total pages 11
Editor B. A. Wills
Place of publication Oxford, UK
Publisher Pergamon Press
Collection year 2001
Language eng
Subject C1
290702 Mineral Processing
640399 Other
Abstract The South African style SAG (RoM) mills operate in a window that is almost exclusive from the operation of the Australian and North American mills that have been used for the development of SAG mill models. Combining good quality, test data from the RoM mills is extending and improving these models, and assisting in a practical manner in improving our understanding of SAG/AG milling. Data from high mill loads, both in absolute filling and ball loading, have been used to extend and improve the JK SAG mill model. This improved understanding has been successfully applied to increasing the throughput of a mill by 8%. Data is presented on relationships between power and load for high mill loading. Slurry pooling is common in closed-circuit RoM mills, and the detrimental effect of this has been dramatically demonstrated at ALCOA with a mill throughput increase of over 20%. Techniques for calculating the effects of slurry pooling have been developed and a new pulp lifter system designed to give optimal slurry discharge. The influence of mill speed in shifting the product size distribution has also been measured. (C) 2001 Elsevier Science Ltd. All rights reserved.
Keyword Engineering, Chemical
Mineralogy
Mining & Mineral Processing
Comminution
Grinding
Crushing
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collection: Julius Kruttschnitt Mineral Research Centre Publications
 
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Created: Tue, 14 Aug 2007, 15:34:04 EST