NEW YORK Steel
Dynamics Inc. (SDI) is outfitting the 95-ton, three-phase
electric-arc furnace (EF) at its Roanoke, Va., structural steel
plant with a new electrode control system in a move to cut
energy consumption and optimize the melting process.
The planned start-up
of the Simetal Simelt AC electrode control system was
originally scheduled for year-end 2013, but implementation was
delayed due to production requirements.
The system, which is
being supplied by Linz, Austria-based Siemens VAI Metals
Technologies GmbH, is now slated for installation and tuning in
the middle of this month.
"We are hopeful the
weather cooperates since we cannot shut down for two days if
the temperature stays in the teens," a spokesman for Fort
Wayne, Ind.-based SDI told AMM via e-mail.
regulates and dynamically adjusts the electric arcs power
to ensure uniform arc radiation, reducing furnace "hot spots,"
extending refractory life and making the most efficient use of
the electrodes servicing the melter.
Siemens noted that the
Simetal Simelt, previously only manufactured in Germany, is now
also built and supported in the United States. The SDI
installation joins an installed base of more than 500 Siemens
Technologies electrode regulation systems worldwide, the