Patent ID: 8308469

Claim:
A fine-particle processing device for transforming columnar particles, fed in a wet condition, into spherical shapes, comprising: a case having a cylindrical wall surface, wherein the case has an opening where columnar particles are fed through in a wet condition, and a discharging vent on the wall where regulated particles are discharged from; a particle-regulating disc formed of a disc of which a top surface is formed with irregularities, the particle-regulating disc being rotated with an outer circumferential edge thereof proximate to an inner circumferential surface of the case; a cover at a part of an outer circumference of the particle-regulating disc, the cover being alternatively arranged in one of: a cleaning position in which the cover is arranged proximate to, but is not in contact with, a top surface of the particle-regulating disc; and a housing position in which the cover is moved further upward or outward, a nozzle for injecting a fluid to a location covered with the cover, within the top surface of the particle-regulating disc, and a vacuum suctioning means for suctioning and discharging to the outside a fluid in the space formed between the cover and the top surface of the particle-regulating disc to the outside of the space.