FIELD: drying.
SUBSTANCE: invention relates to food, microbiological and chemical industry and can be used for freeze drying of frozen solutions or suspensions, freeze drying of frozen food products. Proposed plant comprises vacuum station and vacuum chamber accommodating rack with heated shelves to accommodate trays with product being dried. Installation also includes an ice condenser combined with a shell of the vacuum chamber, as well as at least one heater combined with the rear end guard of the rack. Air heater consists of fan and channel heat exchanger or of fan and channel electric heater. Rack has upper and lower enclosures, as well as longitudinal side enclosures, which organize movement of steam-gas flow along a closed circuit: heater – heated shelves – ice condenser – heater.
EFFECT: use of the invention will make it possible to reduce weight and dimensions of the installation and make it suitable for domestic use.
9 cl, 2 dwg
