Operating Principle
Hot air is made to impinge in a plug flow manner on a moving loosely formedbed of wet feed. Moisture evaporates as the material traverses along thelength of the bed and is rendered dry at the discharge end. Humid air iscontinuously exhausted. The dryer is employed for wet crystals which arevery fragile as well for wet performed feeds which are not suitable for the normal belt dryer operation.

Special Features of Air Impingement Dryer
- Suitable for well aerated beds of preformed, crystalline or granular wet feeds.
- High evaporated efficiencies due to the impingement action in plug flow manner.
- Gentle drying
- Uniform drying
- Material from remains intact
- Low power demand
- Continuous operation
- Shear sensitive materials can be handled.

Typical Applications