DEVICE FOR CONCENTRATION OF SOLUTIONS BY THE METHOD OF FREEZING THE MOISTURE AND RECEIVING ICE Russian patent published in 2018 - IPC F25C1/00 

FIELD: food industry.

SUBSTANCE: invention relates to the food industry and can be used in the concentration of solutions by the method of freezing moisture and obtaining ice. Device for concentrating the solutions by freezing moisture and obtaining ice contains chambers for the formation and growth of ice crystals, separating the concentrated solution from the freeze-out ice, having a common shaft and a chamber for washing out the frozen out ice from the freeze-out ice. Formation and growth chamber of ice crystals contains the outer and inner housings of the evaporator, between which is a coil for refrigerant, nozzles for supplying the initial solution, supply and discharge of the refrigerant. Common shaft in the ice formation and growth chamber has a hollow drum with inclined scrapers mounted in a staggered manner with the possibility of self-mounting during operation. Chamber for separating the concentrated solution from the frozen out ice contains an inner cylindrical perforated body and a cylindrical jacket with a branch pipe for withdrawing the concentrated solution. Common shaft in the compartment for separation of the concentrated solution from the frozen ice is screw-wound, and its tail part is made with a thickening, on the surface of which the auger winding has a smaller step between adjacent turns. Flaked ice flushing chamber contains a conical casing with nozzles that provide water for rinsing and evacuation of the frozen out ice.

EFFECT: invention provides a simplification of the design, a higher functional efficiency by reducing the wear of the scrapers and the inner surface of the evaporator and avoiding the entry of wear products into the concentrated solution, as well as a combination of technological processes of concentration, separation of concentrated solution and freeze-out ice, and washing the latter in one device.

1 cl, 2 dwg