Prediction of the disc wear in a model IsaMill and its effect on the flow of grinding media

Chandana T Jayasundara, Runyu Yang, Aibing Yu, Daniel Curry

Research output: Contribution to journalArticleResearchpeer-review

11 Citations (Scopus)

Abstract

Mill wear is a critical issue in mineral industries. It affects mill performance and the cost of replacing worn parts is high. Understanding wear and its effect would provide a useful insight for process optimisation. This paper combines the discrete element method (DEM) with a commonly used wear model to predict the wear pattern of stirring discs in a model IsaMill. The results show that wear is more severe at the outer face of discs and the lifting side of holes. The simulated wear pattern has been compared with those observed in practice. The effect of disc wear on the flow of grinding media is also examined, showing that with the increasing wear, impact energy increases while power draw shows a mix of slight increase and decrease. The findings would be useful to the improvement in the design and control of IsaMills.
Original languageEnglish
Pages (from-to)1586 - 1594
Number of pages9
JournalMinerals Engineering
Volume24
Issue number14
DOIs
Publication statusPublished - 2011
Externally publishedYes

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