Definite particle - Although many do not realise it, particle size in mineral processing plants is a major factor in many aspects of plant design and performance. It is also critical to the economic return of the plant

摘要

Particle size has to be monitored, so that it can be controlled. One of the ways to monitor size is via manual sampling - where samples are prepared and analysed using sieves or more modern instruments. These manual methods are, however, labour intensive, so many operations reduce this method to once per shift. Process control requires more frequent measurements, e.g. the reaction time of a grinding circuit is typically 5-15 minutes. Automatic techniques, such as on-stream particle size measurement, have, therefore, become common practice in industry because the return on investment (ROI) is very high.