USE OF X-RAYS TO DETERMINE THE DISTRIBUTION OF PARTICLES IN AN OPERATING CYCLONE

A new technique, based on the use of X-rays, was used to deduce the co ncentration distribution of particles (magnetite) at three elevations in a small glass cyclone operated at a feed specific gravity of 1.6. G ood agreement between the image density profiles of the X-ray photogra phs and the image density profiles calculated on the basis of the radi al concentration distributions was obtained. The average magnetite spe cific gravity increased as the diameter cross-section decreased, with specific gravities of 1.81, 1.96, and 2.08 at the three cross-section diameters of 29, 22 and 16 mm respectively.