Luwa Ag

Johann Gruter

Heinz Marki

Internally of an insert arranged within a container there is disposed a pre-evaporator, which at its lower end has an inlet for the starting material and at its upper end opens into a treatment compartment or chamber. The pre-evaporator is surrounded by a heating jacket whose outer surface serves as a heated treatment wall. For forming a thin layer there coact, with such treatment wall, up and down movable wiper elements. Arranged coaxially with respect to the insert or insert member, within the container, is a surface condenser. The starting material or product which is to be processed, is pre-evaporated within the pre-evaporator and subjected, along the treatment wall, to a final evaporation. The lighter volatile constituents condense at the surface condenser, and the condensate can be separately outfed from the concentrate which is formed during the final evaporation.

Apparatus for thermal treatment of flowable materials

A method of, and apparatus for, condensing vapors formed in a thermal separator upon removal of moisture from a material. The vapors are infed to a mechanical separator where there is separated material containing solids and liquids and brought into contact with the material to be separated in the mechanical separator which is effective as a cooling agent, whereby the vapors are condensed.

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Zurich, Switzerland

Johann Gruter