Authors

Development of the vacuum freeze-dryer for dehydration of liquid products

UDC 664.8/.9

Development of the vacuum freeze-dryer for dehydration of liquid products

Shahov S. V., Mosolov G. I., Barykin R. A.

Abstract
The analysis of industrial food products using sublimation dehydration both in our country and abroad is made. The positive and negative aspects of the freeze-dried food production are described. Trends in the development of freeze drying equipment are analyzed. The paper presents the design of vacuum freeze-dryer to dehydrate liquid products allowing to increase the efficiency of the drying process of liquid products due to the effect of heat and use autofreezing phase transformations as a source of energy for evaporation. Granulator supplied with evaporator bath prevents heated nozzle blockage by the frozen product, which increases the operational reliability of the vacuum-freeze spray dryers considerably.

Keywords: vacuum-freeze spray dryers, granulator, energy efficiency, self-freezing.

All references

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