VACUUM SUBLIMATION DRYING APPARATUS Russian patent published in 2003 - IPC

FIELD: drying equipment for products of plant and animal origin. SUBSTANCE: apparatus has vacuum drying chamber, microwave generator, two conical antennae, power divider, at least one dielectric tray for accommodation of object to be dried, and at least one dielectric strip for accommodation of tray. Strip is located inside drying chamber. Antennae are fixed in axially aligned position and in hermetically sealed relation on ends of drying chamber. Output of microwave generator is connected to power divider input. One output of power divider is connected to input of one antenna and other output of power divider is connected to input of other antenna. EFFECT: improved quality of dried product due to increased uniformity of heating in the process of sublimation, reduced drying time and energy of primary source demanded for obtaining required residual moisture content of product due to uniform heating from the inside and simplified construction. 6 cl, 6 dwg