The SWISS COMBI ecoDry is an indirectly heated drum dryer. It dries with superheated steam at atmospheric pressure. The ecoDry technology offers a large energy recovery potential with low emissions and can also neutralize unpleasant odors directly in the dryer.
The ecoDry is based on an indirectly heated drying process with a closed steam circuit (superheated steam) and process-integrated afterburning of the drying vapors.
Drying is thus not carried out in direct contact with combustion gases, but in an extremely gentle manner with superheated steam at low oxygen content.
The exhaust steam generated during drying is heated in the combustion chamber to over 860° C, which oxidizes the hydrocarbons (odor). Through this process, the exhaust gas is released into the atmosphere with low odor and low pollutants.
With an ecoDry from SWISS COMBI, 2 to 40 t/h of water evaporation can be achieved. Drying is possible up to 1% residual moisture.
Various energy sources can be used for drying, such as natural gas, oil or even biogas, hydrogen or biodiesel.