SCA’s Östrand, Sweden Pulp Mill Starts-up Andritz Upgrades
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Reports this week indicate that Andritz has successfully fully started up its expansion equipment project installed at SCA's Östrand Pulp Mill in Timrå, Sweden.
The companies reported successful completion/installation of a complete debarking plant with two parallel debarking and chipping lines each consisting of a PowerFeed de-icing conveyor, a hydrostatically supported debarking drum for a capacity of 425 m3sob/h and measuring 5.5 x 39 meters, and a horizontally fed, XL-size HHQ-Chipper operating with a TK-IV knife system.
Delivery also includes two new-generation HQ-Press bark presses resulting in excellent bark dry content, as well as modernization of the existing chip handling system.
Included is the new innovative EvoDry pulp drying system with its energy-saving technologies that substantially reduce the mill’s operating costs, including a boiler exhaust energy recovery system, fine screening, a twin wire dewatering system with a fully automatic tail threading system to meet strictest health, safety, and environmental regulations, a new-generation sheet dryer for lowest downtime and fast start up, as well as a cutter and two baling lines, new recausticizing machinery, and Andritz LimeFlash technology, together enabling a substantial increase in the capacity of the existing lime kiln without the need to invest in a new lime kiln.
The mill expansion was one of the largest industrial investments in Sweden and the largest ever in northern Sweden. SCA Östrand is doubling its annual production capacity from 430,000 to 900,000 metric tons, thereby becoming the largest mill in the world for softwood kraft pulp.
