BEGIN:VCALENDAR
VERSION:2.0
METHOD:PUBLISH
BEGIN:VEVENT
ORGANIZER;CN=ESTAD 2023:mailto:info@metec-estad.com
LOCATION:Room 18a
SUMMARY:Performance results of Arvedi 450t Consteel® Furnace Equipped with Bottom Electromagnetic Stirring
DESCRIPTION:An electromagnetic stirrer (EMS) has been installed for the first time on a jumbo Consteel® furnace at Acciaieria Arvedi, Cremona, Italy. The dedicated arc furnace for the ‘Arvedi ESP’ casting and rolling mill line has a record-breaking productivity of 412 ton/hour with a tapping weight of 300 metric tons plus a 150-ton hot heel, a power-on time of 37 minutes, and a charge mix including up to fifty percent scrap surrogates such as Pig Iron and Hot Briquetted Iron (HBI). The effect of electromagnetic stirring (EMS) on bath temperature homogenization, melt velocity, stirring power, temperature gradient during arc power-on, and heat transfer from arcs through liquid metal to scrap in the Arvedi Consteel® furnace has been investigated via numerical modelling, water modelling, and industrial performance tests. The stirring force of EMS in the melt is simulated using Dassault Opera and exported to Ansys Fluent to carry out the CFD simulations. Both arc heating effect and scrap charging zone have been included in the CFD models. Simulation results show that temperature homogenization time decreases with increased stirring power, temperature gradient between furnace bottom and surface during arc power-on is reduced from 176 oC without EMS to 37 oC with 100% EMS power, and heat flux transferred to the scrap with 100% EMS power is 2-3 times higher than without EMS. Industrial test results show that EMS increases arc heating efficiency and scrap/HBI/pig iron melting rate, reduces electric energy consumption, power-on time and oxygen content in the steel, and also increases productivity and scrap yield. This successful industrial case provides a solid reference for the future prospects of modernizing/transforming steel plants to achieve net zero emissions.
 
Keywords: Electromagnetic stirring (EMS, ArcSave®, Consteerrer®); CFD simulation; Consteel® furnace; Arvedi; Electric arc furnace (EAF); Energy efficiency;  Sustainability.

CLASS:PUBLIC
DTSTART:20230614T151000
DTEND:20230614T153000
END:VEVENT
END:VCALENDAR