The rebuild included installation of new ventilation technology in the dryer section, improving the connection of the steam and condensate system and the ventilation technology and setting up modern hall ventilation technology. The cylinder dryer section equipped with impingement hoods can now be controlled effectively via a hot air system operated by gas burners. The fresh air for drying is pre-heated via heat recovery from the hood exhaust and the steam and condensate system. This saves power and gas.

The new hall ventilation technology also offers a good production climate. The exhaust heat from the process covers a large part of the heating energy requirement. Heat recovery units were installed in the dryer section exhaust and in the exhaust of the vacuum pumps. Steam is used for the heating only when the heat recovery does not supply sufficient energy.

The supplied automation technology can be operated by the customer via the existing control system and is equipped with an energy optimization system (EOS) from Voith. This maximizes the energy output from the heat recovery units.