ArcSave® in Electric Arc Furnace, Boost Productivity and Reduce Cost ArcSave® in Electric Arc Furnace, Boost Productivity and Reduce Cost ArcSave® in Electric Arc Furnace, Boost Productivity and Reduce Cost

by Lidong Teng, Helmut Hackl, Raghu Badrinathan, Olof Sjoden, Anders Lehman

Publisher - ABB Metallurgy, Process Automation, ABB AB, Västerås, SE-721 59，Sweden

Category - Engineering & IT

ArcSave® is a new generation of electromagnetic stirrer (EMS) from ABB for electric arc furnace (EAF) operation that helps the arc furnace process make liquid steel safer, quicker and with lower cost. Electromagnetic stirring of the melt bath during arc furnace operation will affect the arc stability, scrap smelting, bath temperature distribution, refining reactions, and also the tapping practice. This paper has summarized the benefits from the ArcSave® system. The results show that ArcSave® has stabilized the arc and enhanced the heat and mass transfer in the arc furnace process which result in a faster scrap melting rate, lower the slag superheat during arcing, more homogenous melt bath, and higher decarburization rate, and higher EBT free opening frequency. ArcSave® has also reduced the tapping temperature and tapping oxygen in the steel which brings a higher scrap yield and saves ferroalloy consumption in the downstream ladle furnace operation. The lower energy consumption, short tap-to-tap time, and consistent furnace operation greatly increases the productivity and operation safety. ArcSave® is a new generation of electromagnetic stirrer (EMS) from ABB for electric arc furnace (EAF) operation that helps the arc furnace process make liquid steel safer, quicker and with lower cost. Electromagnetic stirring of the melt bath during arc furnace operation will affect the arc stability, scrap smelting, bath temperature distribution, refining reactions, and also the tapping practice. This paper has summarized the benefits from the ArcSave® system. The results show that ArcSave® has stabilized the arc and enhanced the heat and mass transfer in the arc furnace process which result in a faster scrap melting rate, lower the slag superheat during arcing, more homogenous melt bath, and higher decarburization rate, and higher EBT free opening frequency. ArcSave® has also reduced the tapping temperature and tapping oxygen in the steel which brings a higher scrap yield and saves ferroalloy consumption in the downstream ladle furnace operation. The lower energy consumption, short tap-to-tap time, and consistent furnace operation greatly increases the productivity and operation safety. ArcSave® is a new generation of electromagnetic stirrer (EMS) from ABB for electric arc furnace (EAF) operation that helps the arc furnace process make liquid steel safer, quicker and with lower cost. Electromagnetic stirring of the melt bath during arc furnace operation will affect the arc stability, scrap smelting, bath temperature distribution, refining reactions, and also the tapping practice. This paper has summarized the benefits from the ArcSave® system. The results show that ArcSave® has stabilized the arc and enhanced the heat and mass transfer in the arc furnace process which result in a faster scrap melting rate, lower the slag superheat during arcing, more homogenous melt bath, and higher decarburization rate, and higher EBT free opening frequency. ArcSave® has also reduced the tapping temperature and tapping oxygen in the steel which brings a higher scrap yield and saves ferroalloy consumption in the downstream ladle furnace operation. The lower energy consumption, short tap-to-tap time, and consistent furnace operation greatly increases the productivity and operation safety.

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