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ORGANIZER;CN=ESTAD 2023:mailto:info@metec-estad.com
LOCATION:Room 17b
SUMMARY:Energy savings of inert gas stirring to the EAF process  - with a focus on green steel transformation
DESCRIPTION:The mandatory transformation of European steel production towards Green steel routes requires an increasing use of steel scrap and direct reduced iron. Consequently, new EAFs with large melt volumes are expected to meet the required production capacity at minimum CO2 intensity. With increasing melt volumes the impact of oxygen injectors to bath mixing decreases and additional stirring technologies are required for an optimum EAF process. Inert gas stirring is an established method to improve process control, energy efficiency, metal yield and melting time. 
In the following paper, the benefits of RHI Magnesita´s gas purging technology in EAFs are highlighted by means of transient CFD simulations; with special focus on the influence of the steel flow on refractory wear and hearth mix consumption. The observed process improvements are presented by industrial case studies covering EAFs fed by steel scrap, direct reduced iron and/or hot metal. The here shown process benefits are achieved at the same refractory consumption figures in contrast to competing EAF stirring technologies.   


CLASS:PUBLIC
DTSTART:20230614T121000
DTEND:20230614T123000
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