Grindability of Minerals from Single-Particle Comminution in a Rigidly Mounted Roll Mill

Gutsche, O ; Ravikumar, R. ; Fuerstenau D. W.,
Organization: Society for Mining, Metallurgy & Exploration
Pages: 11
Publication Date: Jan 1, 1992
Six minerals and one ore, namely, barite, dolomite, galena, limestone, quartz, quartzite and taconite, were ground in single-particle comminution mode in a rigidly mounted roll mill with different levels of energy input. Grindabilities were determined from the median size of the self-preserving product size distributions, which was taken as a measure of the fineness of the ground material in an empirical energy-reduction ratio relationship. These values reflect the inherent resistance of the solids to mechanical size reduction that are least distorted by particle-particle interference effects, grinding characteristics, energy efficiency of the milling system employed and the extent of the fineness specified.
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