Drying device for powder material

A drying apparatus for powdered or granular material, comprising:

• a heat conducting fin formed with plural compartment walls radially projecting therefrom having an upper inlet and a lower outlet and having at its center a penetrating path provided with an electric heater therein, and
• a hopper body provided at its upper part with a carrier gas introduction port and an exhaust port, which houses therein said heat conducting fin, wherein:
• said upper inlet and said lower outlet communicate with said penetrating path, thereby constituting a carrier gas communication path, and a space sectioned by said plural compartment walls in said hopper body constitutes material storage space, and
• said carrier gas is externally introduced into said carrier gas communication path through said carrier gas introduction port and heated in said penetrating path, then exhausted out of said hopper body through said exhaust port,
• whereby said powdered or granular material stored in said material storage space is heated and dried by virtue of said carrier gas and said heat conducting fin.