EXTRUSION VACUUM-FREEZE ULTRA-HIGH FREQUENCY DRYER Russian patent published in 2005 - IPC

FIELD: equipment of food industry in production of frozen food products.

SUBSTANCE: in the extrusion vacuum-freeze ultra-high frequency freeze dryer including a freeze chamber with sources of super-high frequency energy, device in the form of an extruder for delivery of the product in it, adapter in the form of the Laval nozzle for production of a steam gate, divider device installed directly after the zone of action of the sources of super-high frequency energy, remote desublimator and a locking gate for unloading of the ready-made product from the installation, the novelty is in the fact that rollers-stackers are placed under the adapter on the horizontal apron conveyer made of radiotransparent material positioned above which in the direction of its motion are the main waveguide with the high-velocity waveguides at the input and output, consisting of separate perforated sections with own independent sources of super-high frequency energy and dielectric lenses, line for connection of absorbing matched load and rollers.

EFFECT: enhanced accuracy of control of the process parameter, reduced loss of power and enhanced reliability of the installation.

1 dwg