FIELD: sublimation (freeze) drying in chemical, microbiological and food- processing industries. SUBSTANCE: vacuum sublimation (freeze) drier has hermetic housing 1 with liquid product supply branch pipe 2 and water vapor discharge branch pipe 3, roll 7, transportation device 4 and devices for discharge of dry product and desublimate. Roll has through hole where reflector 8 is located coaxially relative to it. It has cooling elements of desublimator 9. Ferrule of drier roller has inner cavity connected with delivery branch pipe 11 and discharge branch pipe 12 of heat-transfer agent 13. EFFECT: reduced power requirements and intensified drying process. 2 dwg
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