Thisdryer utilizes hot air flow to make the materials suspended into fluidized state and dry quickly,water exhausted with air flow after evaporation.Fast drying.The temperature could be strictly controlled during drying to assure the quality of material after drying.For big granules or lumpish materials there is a stirring knife that is designed horizontally for fast drying and to avoid stick to the wall.The machine works at negative pressure with smooth and clean inside surface without dead corner,convenient for cleaning to meet requirements of GMP.