Lockedness Profiles - Experimental and Theoretical

Meloy, Thomas P. ; Williams, Mark C. ; Ferrara, Gianfranco ; Preti, Ugo
Organization: Society for Mining, Metallurgy & Exploration
Pages: 8
Publication Date: Jan 1, 1992
Theoretical and experimental lockedness profile curves are the same when the model assumptions are met. They appear different because of the way the data is presented. Continuous theoretical lockedness profile curves present all the data, including the wings of the curves giving them the deep U-shaped configuration. Experimental lockedness profile curves, because of the measurement methods, are discretized, obscuring the wings. If the continuous theoretical curves are discretized, they are similar to the experimental curves. When a float sink test is used to measure an interval of locked particles, the integrated averaging of the separation process obscures the wings of the continuous theoretical curve. To disclose the wings with experimental data, narrow density or measurement intervals must be used.
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