Valmet and Metsä Board have signed an agreement for the supply of key technology for the planned renewal of the Husum pulp mill in Sweden. The supply covers a new recovery boiler and an upgrade of the existing evaporator with a new super concentrator. The contract is conditional for Metsä Board making the final investment decision after receiving the environmental permit, which is estimated for the 2Q 2020, at the earliest.
The value of the order will not be disclosed. An order with this scope of supply is usually valued in the range of Euro 100-150 million. The equipment is scheduled to be in operation by the end of 2021.
Valmet’s delivery includes a new high-power recovery boiler with a capacity of 4,300 tDS/d (tonnes dry solids a day) replacing two old recovery boilers. The recovery boiler has multiple high-power features, including high steam parameters and patented heat recovery from flue gas to combustion air.
The boiler is designed to fulfill tight emission regulations with multilevel air system to optimize the combustion to reach low NOx levels and the dust emissions are removed with Valmet’s own electrostatic precipitator (ESP) technology. Valmet will supply all auxiliary equipment for the recovery boiler including electrification and instrumentation.
The upgrade of the existing evaporators with a TUBEL Super Concentrator will increase the final dry solids of the black liquor and by this increase the steam production in the recovery boiler. The open design of the Valmet TUBEL technology eliminates tube plugging and provides the highest mechanical reliability.
Metsä Board is a leading European producer of premium fresh fiber paperboards including folding boxboards, food service boards and white kraftliners.
