"We have a good experience since we have had Valmet presses in our mill for many years. This rebuild will eliminate bottle necks in the process and increase pulp capacity. We will also cut variable costs which will strengthen our competitiveness", says Olov Winblad von Walter, Mill Director, Iggesund.
"This rebuild is the first step towards a press based bleach plant. The high outlet consistency makes the process easier to control and the volume of effluent will be less than for washers with lower discharge consistencies. Also water and chemical consumption will be minimized. We are looking forward to a good co-operation in this project", says Mikael Gustafsson, Sales Manager, Valmet.
The scope of the Valmet delivery includes main machinery, basic engineering and erection. In the first stage, two pressure diffusers will be rebuilt, one in the cooking plant and one in the brown stock washing, where also a new TwinRoll press, will be installed. In the second stage, the oxygen delignification stage will be extended into a two-stage OxyTrac system, which will make it possible to still reach lower kappa numbers in case of a further production increase. In the bleach plant two new TwinRoll presses will be installed.
Holmen is a forest industry group that manufactures printing paper, paperboard and sawn timber and runs forestry and energy production operations.
Valmet Corporation is a leading global developer and supplier of services and technologies for the pulp, paper and energy industries.
