The effect of feed overload at secondary coal separation with product recirculation

Abstract

For coal separation with product recirculation, there is a risk of an excessive increase in the amount of feed. Protection against this effect can be achieved by an adequate control of the recirculated material amount. The paper presents a control analysis and economic results of separation in either one or two jigs. The advantage of a slight jig performance oversizing and application of video monitoring in their control systems were justified.