Drying device for granular material and method for drying granular material

摘要

PROBLEM TO BE SOLVED: To provide a drying apparatus for a granular material, which can efficiently dry the granular material while suppressing sticking of the granular materials, and a drying method for the granular material. Kind Code: A1 A powder and granular material drying apparatus for heating and drying powder and granular material in a drying tank, comprising a changing mechanism for changing the powder and granular material in the drying tank and the drying. If it is determined that the temperature of the granular material in the vicinity of the heating unit 16 in the tank exceeds the glass transition temperature, the control unit 41 that controls the changing mechanism to vary the granular material is provided. [Selection diagram] Fig. 1