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METHOD:PUBLISH
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ORGANIZER;CN=ESTAD 2023:mailto:info@metec-estad.com
LOCATION:Room 5
SUMMARY:Investigations on flexible ladle preheating procedures using plasma heated refractory
DESCRIPTION:Marcus Holmström1, Björn Glaser1, Herbert Köchner2, Daniel Sundberg3, Asier Arteaga4, Nora Egido Perez4, Raffaello Pio Iavagnilio5

1Kungliga Tekniska Högskolan, Department of Materials Science and Engineering, Brinellvägen 23, 10044 Stockholm, Sweden
2ASenSo GmbH, Am Birkengraben 12, 50259 Pulheim, Germany
3ScanArc Plasma Technologies AB
4Sidenor Investigacion y Desarrollo SA
5Politecnico di Bari



Keywords: Ladle preheating, plasma heating

Preheating of steelmaking ladles is a prerequisite to minimize thermal shock and wear of the refractory and to reduce temperature losses of the liquid steel during tapping and holding times. Standard preheating technology using conventional gas-fired burners is unfavorable regarding thermal efficiency (5-15%), energy consumption and emissions. A novel technique using plasma heating offers a more flexible ladle preheating procedure with a higher thermal efficiency (80-95%) and aiming at reduced gas consumption and emissions. 
The current RFCS pilot and demonstration project PLASMAPILOT investigates the necessities, technical requirements and opportunities of ladle preheating procedures using plasma by combining measurements, numerical modelling of ladle preheating processes and pilot trials at a plasma heater test rig with a full-scale steelmaking ladle. 
First results will be presented on assessment of plasma technology with regards to economic and environmental benefits, together with results from plant trials and laboratory investigations on refractory lifetime. 


CLASS:PUBLIC
DTSTART:20230615T092000
DTEND:20230615T094000
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