Energy Efficiency Improvement and Cost Saving Opportunities in EAF by ArcSave
ArcSave is a new generation of electromagnetic stirrer(EMS)from ABB for electric arc furnace(EAF)operation which aims to improve the safety,increase the productivity and reduce the cost.Electromagnetic stirring in the melt bath during arc furnace operation will affect the scrap smelting,bath temperature distribution,refining reactions,and also the tapping practice.This paper has been summarized the investigation results obtained from the first ArcSave system installed in a 90 ton EBT arc furnace in USA.The hot test results show that ArcSave has enhanced the heat and mass transfer in the arc furnace process which results in a faster scrap melting rate,lower slag superheat during arcing,more homogenous melt bath,and higher decarburization rate,higher EBT opening frequency.ArcSave has also reduced the tapping temperature and tapping oxygen in the steel which bring a higher scrap yield and save ferroalloy consumption in the downstream ladle furnace operation.The lower energy consumption,short tap-to-tap time,and consistent furnace operation bring increased productivity and safety.
electric arc furnace electromagnetic stirring scrap yield decarburization EBT tapping
Lidong TENG Helmut HACKL
ABB Metallurgy,Process Automation,ABB AB,V(a)ster(a)s,SE-721 59,Sweden
国际会议
the 6th International Congress on the Science and Technology of Steelmaking,ICS2015(第六届国际炼钢科技大会)
北京
英文
251-254
2015-05-12（万方平台首次上网日期，不代表论文的发表时间）