Evaporation Technology
The most widely used evaporator in the process industry. Vertical shell-and-tube heat exchanger with a wrap-around or laterally arranged centrifugal separator.
The Falling Film Evaporator, with capacity ranges of up to 150t/h and relatively small floor space requirement, is the most widely used evaporator in the process industry.
Particularly well suited for temperature-sensitive products, liquids containing small quantities of solids and with a low to moderate tendency to form incrustations.
The liquid to be concentrated is supplied to the top of the heating tubes and distributed in such a way as to flow down on the inside of the tube walls.
The liquid film starts to boil due to the external heating of the heating tubes and is partially evaporated as a result. The downward flow, caused initially by gravity, is enhanced by the parallel, downward flow of the vapor formed.
Residual film liquid and vapor are separated in the lower part of the calandria and in a wrap-around or laterally arranged centrifugal separator. It is essential that the entire film heating surface, especially in the lower regions, is evenly and sufficiently wetted with liquid. Where this is not the case, dry spots will result that will lead to incrustation and the build-up of deposits.
For complete wetting is important that a suitable distribution system is selected for the head of the falling film evaporator. Wetting rates are increased by using longer heating tubes, dividing the falling film evaporator into several compartments or by recirculating the product.
Concentrated food products need to be sterilized before they can be stored, packed or dried.
Own state-of-the-art test facilities for laboratory and pilot plant testing in the hands of our skilled R&D engineers. Backed by the solid expertise won over many decades of innovation pursuit.
For applications involving large throughputs of process solution with a relatively low concentration factor and other applications.
Skid-mounted Falling Film and Forced Circulation Evaporators for small-scale production. Energy efficient, easy to transport and assemble.
Falling Film Evaporation heated by MVR
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