A mathematical analysis of mineral breakage

Moore, David E. (1966). A mathematical analysis of mineral breakage PhD Thesis, School of Engineering, The University of Queensland.

       
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Author Moore, David E.
Thesis Title A mathematical analysis of mineral breakage
School, Centre or Institute School of Engineering
Institution The University of Queensland
Publication date 1966
Thesis type PhD Thesis
Total pages 324
Language eng
Subjects 840303 Beneficiation or Dressing of Iron Ores
Formatted abstract A technique of analysing mineral breakage by using irradiated size fractions is developed. Particular emphasis is placed upon the special errors associated with such a technique.

The Broadbent-Callcott matrix analysis of breakage is found to be the most suitable to interpret these experimental results. Further investigation shows that their concepts are correct, but a simple model based upon the assumption of a constant selection function is not always adequate.

The practice of expressing the breakage function as a step matrix is shown to be valid, and its accuracy of predicting product size distributions under different conditions is exhibited. The procedure of postulating a standard breakage function is shown to be unnecessary, but convenient, since any breakage function suffices, provided that it is used in conjunction with its companion selection function.
Keyword Ore-dressing.
Fracture mechanics.
Particle size determination.

 
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