Valmet, Finland, will supply an upgrade of the washing process area for Stora Enso's Heinola fluting mill in Finland with the TwinRoll Evolution wash press (TRPE). The upgrade will improve Heinola's Neutral-Sulfite Semi-Chemical (NSSC) line washing, which will result in a better product quality and strengthened competitive position. The installation is scheduled to start up during spring 2018. 

"This will be the first fifth generation Valmet TwinRoll wash press delivery to Finland. The press will give more flexibility in production and ensure an improved washing of the NSSC pulp before the board machine, and in that way, improve the quality of the final product," said Lari Lammi, senior process manager at Valmet. 

"We want to improve the pulp washing efficiency with moderate washing water volumes. A TwinRoll Press showed to be a compact solution when the alternative washers were more in numbers or bigger in size. We are waiting the startup with great interest to see the TwinRoll Press operation and washing efficiency," said Timo Riuttanen, process development manager at the Stora Enso Heinola mill.

 

The scope of delivery includes the Valmet Twinroll evolution wash press (TRPE) with basic engineering, training, and site services as well as spare parts. The TRPE wash press features displacement washing and pressing to 30%-32% consistency at 2.5%-10% feed consistency. The TRPE wash press is ideal for applications where high washing efficiency and capacity are required. 

Stora Enso is a provider of renewable solutions in packaging, biomaterials, wooden constructions, and paper on global markets. Stora Enso group has some 25,000 employees in more than 35 countries. The sales in 2016 were EUR 9.8 billion, with an operational EBIT of EUR 191 million.  

Heinola Fluting Mill produces semi-chemical (SC) fluting which is used as a raw material in the corrugated board industry. The SC fluting produced at Heinola mill in Finland has been developed especially for demanding circumstances and tough requirements. There are approximately 230 employees at the Heinola Fluting Mill. The Mill is an integrated pulp and board mill, and the annual production capacity is 300 000 metric tons of fluting.