Finland-headed forest industry and energy technology supplier Valmet Oyj has announced that it has successfully started up an upgraded fiberline at Svenska Cellulosa Aktiebolaget (SCA) Obbola pulp mill in Sweden. Valmet’s delivery is part of SCA’s investment project to increase the annual production of Kraftliner in the Obbola mill from the current 450 000 tonnes to 725 000 tonnes per year.
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The SCA Obbola pulp mill’s upgraded fiberline, was started up in September 2021, according to plan. With this investment, SCA Obbola will meet the increased demand for sustainable packaging.
The upgrade of the existing fiberline went smoothly and the startup was on time. The test run was signed off on September 17, 2021. We’re now in the last stage of fine-tuning and optimizing. The production will then gradually increase towards the new optimal production capacity, said Pontus Rosén, Process Engineer, Fiber Processing Business Unit, Valmet.
The fiberline upgrade includes a new hot stock refining after the digester, using Conflo refiners. The brown stock washing was improved by adding a new TwinRoll press as the last washing stage before the storage towers for the paper machine.
As a result of the fiberline upgrade, the daily capacity will increase from today’s 850 to 1 100 air dry tonnes (adt). The capacity increase is managed by improved washing with the same water consumption.
