Powder granulation method and granulation device

A powder granulation device, comprising:

• a plurality of scrapers disposed so as to abut or come close to an inner bottom surface of a cylindrical container, the inner bottom surface of which rotates on a horizontal plane, and so as to abut or come close to an inner-side face that is contiguous to the inner bottom surface.

A powder granulation device, comprising:

• a plurality of scrapers are disposed, at a machine frame or the like, movably in radial direction of an inner bottom surface that rotates on a horizontal plane and;
• a vertical direction of an inner-side face that is smoothly contiguous to the inner bottom surface, of a cylindrical container, in such a manner that leading ends of the plurality of scrapers abut or come close to the inner bottom surface and the inner-side face of the cylindrical container.