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Automation technology at coal plant in Finland

Automation technology at coal plant in Finland

Metso has received automation technology orders from SSAB Europe and
Raahen Voima in Raahe, Finland. Metso will supply automation for the
Raahe steel mill’s new blast furnace pulverised coal injection process
and for Raahen Voima’s power plant modernisation to increase safety and

The Raahe steel mill is currently
replacing the use of heavy fuel oil with a pulverised coal injection
process in its blast furnaces. The process equipment needed for coal
grinding, drying and feeding will be supplied by Claudius Peters
Projects GmbH, Germany.

Metso’s delivery consists of a Metso DNA automation system, a safety
system, an information system and an extension to the existing Sensodec
machine monitoring system. Field device condition monitoring is also
included in the delivery. Blast Furnaces 1 and 2 already run with
Metso’s automation. System installation will take place in May 2015 and
the coal injection process startup is scheduled for the autumn of 2015.
The order is included in the Q2 2014 orders received by Metso.

Automation for new boiler plant and turbine

Voima is also modernising its power plant that provides electricity and
steam to the Raahe steel works. The company will replace the older of
its two power boilers with a new Valmet-supplied boiler plant, which has
a steam capacity of 141 MW and a fuel capacity of 152 MW. A new turbine
will be supplied by Power Machines.

Automation technology at coal plant in Finland 2

Metso will supply an extension to the power plant’s existing
automation system to cover the new boiler plant and the turbine plant.
An integrated automation system in the power, combined with a common
user interface, makes operation simpler. Additionally, with the
distributed control system and turbine automation in the same system
fieldbus, system integration is trouble-free.

“The DCS investment
was made on economic and technical grounds. Also the customer’s earlier
good experience with Metso’s automation and past high system
availability of over 99.95% were important,” said Olli Koivumäk of

Metso’s delivery scope consists of a Metso DNA automation
system for the boiler plant and the turbine, a safety system, Metso DNA
Machine Monitoring and Field Device Manager for field device condition
monitoring, among others.

System startup will take place during 2015. This order is included in the Q3 2014 orders received by Metso.


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