Abstract: A machine for use in granulation, coating, mixing, drying etc. of powdery or granular raw materials such as medicine or foods etc. The machine is comprised of a casing for containing raw materials, a rotator for tumbling and giving centrifugal force to the material in the casing rotatable horizontally in the casing and at least one disintegrator provided above the rotator for subdividing undesirously large particles. At least one agitator is provided above the rotator for agitating and kneading materials to be granulated or coated. The rotator is movable or fixed in vertical position, and an annular slit is formed between an annular slit forming ring or inner wall of the casing and outer periphery of the rotator. The slit forming ring is movable or fixed in vertical position. At least one ventilating portion is formed on at least one portion of the rotator, and a gas flow rate adjusting mechanism is provided for controlling flow rate of gas passed through the ventilating portion.

Abstract: Coating method and apparatus, in which jet streams of a high-pressure fluid are ejected in the opposed directions into a pulverization zone in a pulverizer to hit a raw material conveyed by one of the jet streams on the other and thereby pulverize the same, the surfaces of particles of the resultant raw material are coated at the same time that the pulverization is done. The raw material to be pulverized is fed into the pulverization zone with a jet stream or by a mechanical means to be then accelerated by a jet stream therein. A coating material is fed in the same direction in which a jet stream flows, or directly into the pulverization zone.

Abstract: A granulating and coating machine for use in granulation, coating, mixing, drying etc. of powdery or granular materials. The machine includes a casing for holding the powdery or granular raw materials, a rotator for performing granulation or coating arranged at the bottom of the casing and formed with at least one ventilating porition, an annular slit formed between the periphery of the rotator and the inner wall of the casing. A gas flow adjusting mechanism including two separated ducts for gas flow is provided in order to control independently the rate of gas fed through the ventilating portion and the slit gas fed through the slit. An agitator for agitating the powdery or granular materials and a disintegrator for breaking undesirously large particles of the powdery or granular materials may be provided above the rotator. The slit may be formed by an annular slit forming ring mounted on the inner wall of the casing.