METHOD AND DEVICE FOR HEAT SUPPLY AND RECOVERY OF HEAT ENERGY IN VACUUM MACHINE OF DEHYDRATION AND DRYING Russian patent published in 2016 - IPC F26B5/04 F26B9/06 

FIELD: energy.

SUBSTANCE: invention relates to systems for transfer of heat energy in vacuum dehydration and drying machines and a method of supply and heat energy transfer in vacuum drying machines, evaporating machines and devices of low-temperature vacuum dehydration of various materials and can be used for processing and recycling wastes of poultry and pig-breeding farms, plants producing alcohol, beer, as well as in food, medical, microbiological and other industries. Method of heat supply and recovery of heat energy in a vacuum machine of dehydration and drying includes pumping off the chamber down to a pressure below the atmospheric value, mixing and displacement of initial material in the chamber, collection, drainage and removal of condensate, conductive heat supply to the initial material. Novelty is that mixing is carried out with fine particles extracted during dehydration of the initial material, and heat energy, which accompanies the process of cleaning, performs maintenance of the mode in the process vacuum chamber. Inside the vacuum chamber there are built-in devices for cleaning steam from impurities consisting of fine particles of the initial material transferred via a steam line to the compressor, made in the form of coaxially connected narrowing and expanding parts, on the inner surface of which there are helical grooves and a circular groove at the outlet hole.

EFFECT: technical result is reduction of heat energy losses due to improved conditions of operation of the compressor, the system of dehydration and drying of initial material.

2 cl, 3 dwg