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Andritz to supply evaporation plant to Iggesund Paperboard AB in Sweden

Austria-headed international technology group Andritz AG has announced that it has received an order from Iggesund Paperboard AB, a member of the Sweden-headed forest industry major Holmen Group, to supply a new evaporation plant and rebuild an existing evaporation plant for the pulp mill in Iggesund, Sweden.

Andritz is to supply a new evaporation plant to Iggesund Paperboard mill in Sweden (photo courtesy Andritz).

The Iggesund Mill produces high-quality bleached paperboard under the brand name Invercote, which is sold in more than 100 countries. According to a statement, the new 7-effect high dry solids evaporation plant will have a capacity of 350 tonnes per hour evaporated water. Start-up of the new plant is scheduled for the second quarter of 2019 and of the rebuild for the fourth quarter of 2019. The value of the order has not been disclosed.

The new evaporation plant will replace an old Andritz evaporation line from the 1970’s and significantly enhance energy efficiency at the Iggesund mill. The state-of-the-art technology of the evaporation plant will improve the cleanliness of the condensates produced, which are reused in other processes in the pulp mill.

The existing evaporation plant will be rebuilt and upgraded to 220 tonnes per hour with modern lamella technology in effects 1 and 2 in order to meet and exceed the plant’s original design data. According to Andritz, its lamella technology ensures the desired steam economy at all times, reduced energy consumption by circulation pumps, as well as higher black liquor concentration and stability, thus leading to increased and stabilized power production in the recovery boiler.

It also provides optimized vapour condensate quality that contributes towards lower energy and chemical consumption. This reduces the mill’s operational costs. In addition, shorter and fewer washing cycles enhance the overall availability and production.

The clear advantages of Andritz’s lamella technology, as well as the excellent cooperation with Andritz in previous projects, were decisive factors for Iggesund Paperboard to award the order to Andritz, said Olov Winblad von Walter, Mill Director at Iggesund mill.

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