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Film-type evaporator for thickening liquid products with a container having a vapor outlet, a drive shaft introduced into the latter from above for a rotating rotor with at least one conically upwardly widening heating surface, onto whose inside the product is fed in the vicinity of the smaller diam

Film-type evaporator for thickening liquid products with a container having a vapor outlet, a drive shaft introduced into the latter from above for a rotating rotor with at least one conically upwardly widening heating surface, onto whose inside the product is fed in the vicinity of the smaller diameter and the product spreads in film-like manner towards the larger diameter and is fed there as a concentrate into the container, and on whose outside is guided the heating medium supplied and removed through the hollow drive shaft. Such an evaporator is characterized in that in the vicinity of its larger diameter, the rotor is connected by a spider, which has at least one hollow arm in each case for the feed and removal of the heating medium, to the drive shaft, and in the vicinity of its smaller diameter is traversed by a conical immersion tube rotating with the rotor and which is immersed with its smaller diameter in the product or concentrate in the lower part of the container and on its larger diameter is connected to the drive shaft of the rotor and has there an overflow edge feeding the product or concentrate onto the heating surface.

대표청구항 ▼

A film-type evaporator for thickening liquid products comprising a container having a vapor outlet, a hollow drive shaft introduced into the container from above, said hollow drive shaft including means for supplying and removing a heating medium through said shaft, a rotor in said container, said r

A film-type evaporator for thickening liquid products comprising a container having a vapor outlet, a hollow drive shaft introduced into the container from above, said hollow drive shaft including means for supplying and removing a heating medium through said shaft, a rotor in said container, said rotor being rotated by said drive shaft, and said rotating rotor having at least one conically upwardly widening heating surface, means for feeding a liquid product to an inside surface of the at least one heating surface in the vicinity of a smaller diameter thereof, the product spreading in film-like manner towards a larger diameter thereof and means for feeding the liquid product as a concentrate from a larger diameter of the at least one heating surface into the container, means for guiding the heating medium supplied and removed through said hollow drive shaft on the outside of said at least one heating surface, a spider connected to the hollow drive shaft in the vicinity of the larger diameter of said rotor, said spider having at least one hollow arm for the feeding and at least one hollow arm for the removal of the heating medium, a conical inner immersion tube of said means for feeding a liquid, said conical inner immersion tube transversing said rotor in the vicinity of the smaller diameter of said rotor, said conical inner immersion tube rotating with the rotor and being immersed with its smaller diameter in a liquid product or concentrate in the lower part of the container and on its larger diameter is connected to the hollow drive shaft of the rotor, said conical inner immersion tube having an overflow edge on its larger diameter for feeding the liquid product or concentrate onto the at least one heating surface.