Powell, MS and Morell, SS and Latchireddi, S (2001) Development in the understanding of South African styles SAG mills. Minerals Engineering. ISSN 1754-890X

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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.

Item Type:	Article
Subjects:	Material/Component Development, Processing and Characterization > Mineral Processing/Beneficiation Material/Component Development, Processing and Characterization
Divisions:	UNSPECIFIED
Depositing User:	Mr. B.K. Prasad
Date Deposited:	21 Jan 2014 11:26
Last Modified:	28 Jan 2014 11:47
URI:	http://ampri.csircentral.net/id/eprint/1068

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