Case: Stora Enso’s Imatra mills at Kaukopää wanted to improve the machine hall ventilation around the PK6 paper machine.
Goals
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
Solution
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.
Qualifications
”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.”
Result:
”The solution has met our expectations. We are already seeing clear energy savings. Our goals for ventilation improvements have also been met.”
Timetable
Cooperation started at the end of 2012. The schedule was tight and TM Systems took care of the technical planning of the process swiftly. The project was executed in 2013.
For more information, please contact:
Jani Korvela
TM Systems
jani.korvela@tmsystems.com
tel +358 2 419 5500