A specific energy-based ball mill model: from batch grinding to continuous operation

Shi, Fengnian and Xie, Weiguo (2016) A specific energy-based ball mill model: from batch grinding to continuous operation. Minerals Engineering, 86 66-74. doi:10.1016/j.mineng.2015.12.004


Author Shi, Fengnian
Xie, Weiguo
Title A specific energy-based ball mill model: from batch grinding to continuous operation
Journal name Minerals Engineering   Check publisher's open access policy
ISSN 0892-6875
1872-9444
Publication date 2016-02-01
Year available 2015
Sub-type Article (original research)
DOI 10.1016/j.mineng.2015.12.004
Open Access Status Not Open Access
Volume 86
Start page 66
End page 74
Total pages 9
Place of publication Oxford, United Kingdom
Publisher Pergamon Press
Language eng
Abstract A specific energy-based size reduction model for batch grinding ball mills was reported in a previous paper (Shi and Xie, 2015). A discharge function modified from the Whiten classification efficiency equation has been incorporated in the size reduction model to extend its applications from batch grinding to continuous operation. Five sets of the industrial ball milling survey data were used to validate the ball mill model. The data were acquired from four full scale ball mills covering primary and secondary grinding duties in a gold concentrator and a PGM concentrator. In all cases, the model fits the ball mill operational data well. Features of the specific energy-based ball mill model include the use of an ore-specific and size-dependent breakage function, whose parameters are independently measured with a fine particle breakage characterisation device, the JKFBC. This allows simulations of the effect on ground product size distribution of changing ore breakage characteristics. The model utilises separate selection function and discharge function, which permits the investigation of the influences of mill operational conditions on grinding performance.
Keyword Ball mill model
Comminution
Grinding
Ore breakage characterisation
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Julius Kruttschnitt Mineral Research Centre Publications
Official 2016 Collection
Sustainable Minerals Institute Publications
 
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