Scirocco air classifier

Overview

NETZSCH's Scirocco air classifiers have been developed for the production of fines from 6 -150 µm and belong to the family of turbo classifiers with turbulent airflow, also called centrifugal classifiers. They achieve a very high yield at a low specific energy consumption and offer a cut point down to d98 < 6 µm. The solid design reflects NETZSCH's philosophy of building machines that are endurable in time and persist in the same state, which is presented as a long-term investment. For the separation process the product is introduced with the air from the bottom for optimum dispersion of the feed; where coarser separations are required, feed can be introduced from the top to reduce energy consumption by lowering the pressure drop. The Scirocco can be supplied with a ceramic classifier wheel or ceramic rotor and the body lined with ceramics or polyurethane as wear protection or to prevent iron contamination, and the head is available for existing Pendular Roller Mills. The Scirocco is intended for producing fines in the 6 -150 µm particle size range, with a cut point capability down to d98 < 6 µm. Explicitly listed applications include Calcium Carbonate and Talc. The classifier head can be supplied for existing Pendular Roller Mills to improve product quality and quantity, and the unit can be operated with bottom feed for optimum dispersion or with top feed for coarser separations that reduce pressure drop and energy consumption.