The objectives with the installation of the Valmet Process Optimizer at SCA Ortviken were less variations in pulp quality, increase throughput, reduced energy consumption and gaining the possibility of controlling/optimizing long fiber and shive content simultaneously.
The benefits obtained from installing the process optimizer on eight refiners and seven screening lines at SCA Ortviken follow:
Refining
50% reduction in freeness variation
10% production increase
5% less energy consumption
Screening
50% reduction in freeness variation
10% reduction of shive content
Other benefits
The possibility of minimizing shives, and maximizing average fiber length
Easy to establish the relative order between cost, quality and production
The adaptive system always finds the best settings, for example, after a segment change
