Separating Grain Components by Air Classification

The use of air as a means of effecting particle separation is one of the oldest technologies known t o man. The development of various commercial air classifiers has, however, led in recent years t o a renewed interest in the application of this technique to the fractionation of heterogeneous particulates into sub-groups of fairly uniform size based on particle density and mass. Early applications of air classification, and still the most commonly found, are in the chemical, dyestuffs, ceramics and whit clay industries to from products sharply graded in the 2 to 60 micron range