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Opening ceremony of Wisaforest Pulp mill’s new recovery line


September 7, 2004
By Pulp & Paper Canada

UPM’s Wisaforest mill in Pietarsaari, Finland, started up the world’s highest capacity kraft pulp recovery line in…

UPM’s Wisaforest mill in Pietarsaari, Finland, started up the world’s highest capacity kraft pulp recovery line in the beginning of April, 2004. The new recovery line was officially opened by Finland’s Prime Minister Matti Vanhanen in August 24, 2004.

That day the world’s largest recovery boiler made a world record of 4,700 tons per day of black liquor solids.
The new recovery line is totally automated with metsoDNA automation solution in addition to providing the line with process optimization controls for evaporation plant, recovery boiler, sootblowing, causticizing, lime kiln, and for steam load levelling.

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Olli Ahava, automation manager of Wisaforest mill said the start-up was quick and faultless. He added, "The pulp mill production reached a new record on the fifth day after start up. Not one ton has been lost due to automation problems." Kenneth Winberg, mill manager, re-stated the good start-up curve numbers.


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