The use of grey level measurement in predicting coal flotation performance

J. M. Hargrave, N. J. Miles, S. T. Hall

    Research output: Journal PublicationArticlepeer-review

    41 Citations (Scopus)

    Abstract

    It has long been accepted that the texture of a froth is generally a good qualitative indicator as to the performance of the flotation process. During investigation into quantifying froth textures by image analysis, it was observed that the grey level of a coal froth can provide significant information. The grey level showed correlations with flotation performance (e.g. ash content and froth mass flows rates) for both a single flotation cell and a bank of four pilot-scale cells. However, the two systems showed distinct differences in the texture of the froth surfaces. Testwork demonstrated that the effect of varying background illumination had a negligible effect on the results.

    Original languageEnglish
    Pages (from-to)667-674
    Number of pages8
    JournalMinerals Engineering
    Volume9
    Issue number6
    DOIs
    Publication statusPublished - Jun 1996

    Keywords

    • Coal
    • Flotation froths
    • Froth flotation
    • Modelling
    • Process control

    ASJC Scopus subject areas

    • Control and Systems Engineering
    • General Chemistry
    • Geotechnical Engineering and Engineering Geology
    • Mechanical Engineering

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