Spray Dryers

Agitated Thin Film Dryer

Agitated thin film dryers are used for continuous drying of heat sensitive products with total solvent recovery. This is ideal for drying pharmaceuticals, bulk drugs and intermediates, organic and inorganic salts. 

Agitated Thin Film Dryer (ATFD) is the final stage equipment in Zero Liquid Discharge plant. Concentrated liquid is spread over the wall of jacket vessel to form thin film. Due to film technology high heat transfer coefficient is achieved and liquid gets evaporated. Powered product is collected from the bottom of the ATFD.

Scrapping blades are provided to scrap the powder from wall of jacket to keep surface area ready for new film evaporation. Evaporated vapors are condensed in separate condenser for solvent recovery.