Valmet will deliver key technology for upgrading the SCA Obbola mill’s pulp production in Sweden. Valmet’s delivery includes a new fossil free lime kiln and upgrade of the existing fiberline, as the company says in the press release received by Lesprom Network.
The pulp production upgrades will happen in stages. The upgraded fiberline will start up in June 2021 and the new lime kiln is scheduled to start up during the last quarter of 2021. The value of the order will not be disclosed. A project of this size and scope is typically valued at around Euro 50 million.
The new lime kiln system delivered by Valmet replaces two old oil fueled lime kilns and will have a daily capacity of 220 tonnes burned lime. The solution includes OptiDisc Lime Mud Filter, Flash Dryer for lime mud drying, high efficiency Rotary Cooler and a full Wood Powder Firing System for the lime kiln, including storage and grinding of wood pellets. This solution makes the lime kiln 100% fossil free. SCA also operates a wood powder fired lime kiln delivered by Valmet at its Munksund mill.
The fiberline upgrade includes a new hot stock refining after the digester using Conflo refiners. The brown stock washing will be improved by adding a new TwinRoll press as last washing stage before the storage towers for the paper machine. As a result of the fiber line upgrade the daily capacity will increase from today’s 850 air dry tons to 1,100 air dry tons.
Valmet is the leading global developer and supplier of process technologies, automation and services.
