Problems of Grain Size Determination with Centrifugal Separators.

Using the 100 MZR Alpine multiplex zigzag separator as an example, the general problems which arise when using a centrifugal separator for grain size determination are indicated. The most important prerequisite for the use of such a device is the plotting of a calibration curve. Examples are cited to show how this is done. If this calibration curve is valid only for a particular material of given density and grain size distribution, it can still be used under certain assumptions for an approximate conversion calculation for other materials of different density.