STORA ENSO IMATRA HEAT RECOVERY AND MACHINE HALL VENTILATION IMPROVEMENT
”We see clear energy savings”,
says Pasi Lampinen, Stora Enso Imatra mills
Stora Enso Imatra mills at Kaukopää, Finland wanted to increase the production of PM6 and to improve the machine hall ventilation around the paper machine.
The investment aimed to improve the machine hall ventilation, to even out the temperature differences and to increase the performance of heat recovery in the ventilation. The goal was also to create savings in energy usage by decreasing the steam usage in supply air heating.
Testimonial by Pasi Lampinen, production manager, Stora Enso, Imatra:
”We evaluated the solutions offered by various suppliers and decided to start cooperation with TM System Finland Oy, who offered the best solution in terms of price and quality. The solution has met our expectations. We are already seeing clear energy savings. Our goals for ventilation improvements have also been met.”
The air balance of the machine room was improved by installing new supply air units. At the same time, the heat recovery system was rebuilt by adding a modern heat recovery tower, which included new hood exhaust system, supply air system and heating of process and clycol water. Over 10 MW energy could be recovered.
At the same time we changed the mist collector in the wire cleaner, and by doing so, we reduced the moisture load in the wet end.
- Paper machine production was increased.
- Less steam consumption needed.
- Energy recovery and energy savings increased.
- Working conditions in machine hall improved.