| abstract |
A method of and device for drying small-sized solids such as granular or crystalline particles in which drying is effected by the application of a drying medium to a bed of the granular or crystalline particles contained in a shell of a drier. During the drying operation, the bed of the particles in the shell is given a gentle motion caused by a stirrer while receiving the drying medium passing through the interstices among the particles at a speed lower than the minimum fluidizing velocity, the stirrer being operated at a comparatively lower rate so that the particles are not further pulverized or damaged. |