Abstract

The conventional method for predicting the performance of coal cleaning units is by plotting a generalized distribution curve, which is cumbersome. This paper outlines attempts to describe the Tromp curve using a Rosin-Rammler type of equation for estimating performance. Experiments were carried out on a laboratory (76 mm) water-only cyclone to produce Tromp curves of widely varying nature. The results were used for model development. Performance data for different coal washing units such as jigs, tables, spiral concentrators and industrial water-only cyclones were also selected from the literature to check the validity of the model.

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