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ANDRITZ to Modernize Two Boiler Plants
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Graz, Austria 15 May 2013 -- International technology Group ANDRITZ has received orders from Stora Enso Nymölla AG and Domsjö Fabriker AB, Sweden, to modernize a recovery boiler and a sulfite liquor boiler. Due to technology and equipment supplied by ANDRITZ Energy & Environment (AE&E), the capacity of the two boiler plants can be increased by up to 20%. Both start-ups are scheduled for 2013.

For Stora Enso’s liquor recovery boiler in Nymölla, which went into operation in 1971, AE&E will supply the plate-type heat exchangers for pre-heating the combustion air in combination with an economizer to pre-heat the feed water. This technical concept is characterized by a long lifetime of the boiler and lower maintenance effort required; thus scheduled plant shutdowns can be reduced to a minimum and the plant’s capacity increased significantly.

The scope of supply for sulfite liquor boiler no. 9 at Domsjö Fabriker, in operation since 1962, comprises replacement of the super heater and evaporator heating surfaces, as well as partial replacement of the front and rear walls of the liquor boiler. The new AE&E design will improve the fouling behavior of the boiler and enhance efficiency by up to 20%. Due to the very short assembly period of 18 days, the customer will only have a very brief production shutdown.


The ANDRITZ GROUP is a globally leading supplier of plants, equipment, and services for hydropower stations, the pulp and paper industry, the metalworking and steel industries, and solid/liquid separation in the municipal and industrial sectors. In addition, ANDRITZ offers technologies for certain other sectors including automation, the production of animal feed and biomass pellets, pumps, machinery for nonwovens and plastic films, steam boiler plants, biomass boilers and gasification plants for energy generation, flue gas cleaning plants, plants for the production of panelboards (MDF), thermal sludge utilization, and biomass torrefaction plants. The publicly listed, international technology Group is headquartered in Graz, Austria, and has a staff of around 23,700 employees. ANDRITZ operates over 220 production sites as well as service and sales companies all around the world.

Andritz Energy & Environment

ANDRITZ Energy & Environment, part of the PULP & PAPER business area, is a globally leading, full-line supplier of energy generation and environmental technology plants and systems. The company designs and constructs turnkey power plants and supplies components such as steam generators and flue gas cleaning systems. Service and modernization complete the product portfolio.


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