Ultra-fine Screening of Dry Mineral Powders

摘要

Anew approach to the ultra-fine screening of dry mineral powders is offered by Allgaier Process Technology GmbH, whose UK and Ireland agency has recently been awarded to Market Harborough-based Orthos (Engineering) Ltd. The fine and ultra-fine screening (defined as the application of cut points in the range 30μm- 200μm) of powders, even when dry, is one of the most difficult tasks in the field of minerals processing. It is essential to achieve efficient recovery, at an economic throughput rate, of required products in the form of sharply defined fractions, as the products themselves are very often of high value and specification, and are widely used as constituents in pharmaceutical and cosmetic preparations, and as high-grade fillers in paints, plastics etc.