METHOD OF CONTINUOUS SUBLIMATION DRYING OF LIQUID PRODUCTS AND DRIER FOR REALIZATION OF THIS METHOD Russian patent published in 1998 - IPC

FIELD: vacuum sublimation drying of liquid product; chemical, pharmaceutical and microbiological industries; plants of agricultural and industrial complexes. SUBSTANCE: method consists in freezing this layer of product on inner surface of perforated drum which is performed through desublimation of moisture evaporated from product at simultaneously drying it in other drum; desublimation is effected under action of heat of Freon vapors escaping from second stage of desublimator compressor. Perforated drums of dried used for continuous sublimation drying of liquid products are made from tubes connected with pipe lines of refrigerating machine of desublimator. Drums are located in horizontal plane for rotation on frame provided with toothed rack and rollers. Both frame and rollers are mounted rotatably. Feeders are made in form of reinforced hoses from flexible material tight for refrigerant. Hoses have passages for liquid product and passages for delivery and discharge of refrigerant. Central axes of hoses at point of attachment in drum and in housing of drier have common right angle. EFFECT: reduced power requirements; increased productivity. 3 cl, 4 dwg