Evaporation Technology
Often used in combination with the Falling Film Evaporator. Shell-and-tube heat exchanger or plate heat exchanger as calandria. With flash/vessel separator arranged above the calandria and circulation pump.
The Forced Circulation Evaporator is often used in combination with the Falling Film Evaporator as high concentrator or as crystallization evaporator for saline solutions.
Especially adequate for highly viscous liquids or with a high tendency to fouling as well as a high concentration step in multiple-effect evaporation plants. GEA offers different design options depending on product specifications and customer requirements.
The liquid is circulated through the calandria by means of a circulation pump, where it is superheated at an elevated pressure, higher than its normal boiling pressure. By entering the separator, the pressure in the liquid is rapidly reduced, resulting in some of the liquid being flashed or rapidly boiled off.
Since liquid circulation is maintained, the flow velocity in the tubes and the liquid temperature can be controlled to suit the product requirements independently of the pre-selected temperature difference.
Best suited for temperature-sensitive products and liquids with small amounts of solids and going up to high concentrations
Test facilities available for laboratory and pilot plant testing for different kinds of evaporator systems.
Skid mounted Falling Film and Forced Circulation Evaporators for small-scale production. Energy efficient, easy to transport and assemble.
For applications involving large throughputs of process solution with a relatively low concentration factor and other applications.
Falling Film Evaporation heated by MVR