Rev. Met. Paris
Volume 104, Number 10, October 2007Aciérie
Utilisation de l'acier
|Page(s)||501 - 506|
|Published online||19 October 2007|
Automatic setting of the EAF burners
The use of chemical energy in the EAF has increased significantly in recent years, both for enhancing productivity and reducing electricity consumption. However, these tools are operated following pre-set patterns, without any feedback information from the process. This leads both to non-optimized operations and to occasional blowback problems, resulting in damages to burners, lances, watercooled panels and refractory lining. CRM has developed an on-line “distance-to-scrap” measurement technique that can be fitted inside annular burners. This measurement allows monitoring the melting of scrap in front of each burner, and thus detecting blow-back occurrences before any damage is created. This sensor was successfully tested in the Esch-Belval steel plant of ArcelorMittal Profil Luxembourg. Industrial implementation is under way.
© La Revue de Métallurgie, 2007
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