LOW-TEMPERATURE VACUUM MATERIAL DEHYDRATION AND DRYING DEVICE Russian patent published in 2010 - IPC F26B9/06 F26B5/06 

FIELD: heating systems.

SUBSTANCE: device meant for low-temperature vacuum material dehydration and drying includes vacuum process chamber in which there are process heat exchangers-evaporators with tubular channels for heat carrier, vacuum pumping assembly, assembly of charging original material to vacuum process chamber, assembly of discharging dehydrated end product, condensate collection and drain assembly, heat carrier supply assembly and heat pump. At that, vacuum process chamber is made in the form of individual units of pre-heating, pre-dehydration and final drying, cavities of each of which are connected to vacuum pumping assembly; at that, unit of final drying is made in the form of a tube with screw mechanism located in it and made in the form of blades which are fixed on the shaft and have pitch changing throughout the shaft; at that, one end of tube is connected to unit of pre-dehydration, and the other end - to finished product capacity; at that, blades from the side of finished product capacity are needle-shaped; shaft cavity is connected to heat carrier supply system; evaporation circuit of heat pump is connected to condensate collection assembly, and condenser circuit of heat pump is connected to final drying unit.

EFFECT: improving dehydration and drying efficiency of original materials, reducing energy consumption.

2 dwg