Agitated flash dryers are used to avoid multiple passes of the product through the dryer. In this configuration, the feed material is transferred from an agitated feed tank through a screw feed into a flash-drying chamber provided with a rotor. The rotor continuously exposes wet surfaces from the feed material to make up for the short residence time available for the drying process. This configuration of flash dryer is particularly useful for inorganic and organic pigments as well as inorganic products like kaolin and alumina.
