FIELD: machines or apparatus for drying materials.
SUBSTANCE: method comprises evaporating surface moisture, fast heating up to a given temperature, cooling with supplying particles to the rotating surface at a temperature of 100°C, and collecting of the finishing product. The particles are set in a contact with the surface by the action of centrifugal forces and are hardened on the surface of the cooler by quick cooling. The loose material is treated on the rotating vertical cylindrical or conical heated surface. The stages of evaporation of excess moisture and heating up to the required temperature are combined. The motion of the material over the heated surface under the action of gravity is controlled by friction force, which, in turn, is controlled by the change of velocity of rotation.
EFFECT: simplified control, enhanced efficiency, and reduced power consumption.
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