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VetterTec ring and flash dryers are used for various products, preferably when gas or oil is available and / or off heat from downstream processes should be used in the dryer. Based on the flash effect and the minimum of retention time the dryer has a minimized thermal influence on heat sensitive products.

VetterTec ring dryers and flash dryers are pure convection dryers and can be either designed as directly or indirectly heated dryers. The material is conveyed in a hot air stream where the wet material is in contact with the highest temperature gases which rapidly, minimum of retention time, cool as evaporation from the product occurs, product temperatures are kept to a minimum resulting in uniform product quality and minimum thermal damage.

VetterTec ring and flash dryers are co-current airstream drying systems which are ideal for drying filter cakes, fibrous materials, sludges and slurries. By its function principle these dryers have a minimum of thermal influence on heat sensitive products.