FLUIDIZED DRYING METHOD AND FLUIDIZED-BED DRYER

PROBLEM TO BE SOLVED: To provide a fluidized drying method and a fluidized-bed drier capable of stably drying and classifying a material (dried object) of high moisture content or a material including moisture and having an adhesive property, by using the fluidized-bed drier while preventing lumping of material particles and attachment of the same to a device. SOLUTION: This fluidized-bed drier comprises a supply chamber having a material supply opening and a drying classifying chamber having a processed object discharge opening, the material including moisture is supplied to the supply chamber from the material supply opening, and the fluidized material is fluidized by a fluidization gas through dispersion plates of each of the chambers to be dried, classified into fine powder and rough particles, and then fluidized and dried by using a continuous fluidized-bed drier discharging the processed object of rough particles from the discharge opening of the drying classifying chamber, while controlling a thickness of the fluidized bed of the supply chamber independently from a thickness of the fluidized bed of the drying classifying chamber. COPYRIGHT: (C)2008,JPO&INPIT