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Increasing EAF energy efficiency and productivity by bottom gas purging

Title data

Kirschen, Marcus ; Casette, Walter ; Zettl, Karl-Michael:
Increasing EAF energy efficiency and productivity by bottom gas purging.
In: Instituto Argentino de Siderurgia (ed.): 20a Conferencia del Acero, IAS 2014. - San Nicolás , 2014 . - pp. 92-99
ISBN 978-950-9671-10-2

Abstract in another language

Gas purging systems are an optional EAF technology for higher productivity, improved process control and safety, and lower production cost of EAF steelmaking. Bottom gas purging systems improve agitation of the steel melt, heat exchange and chemical homogeneity of the melt. As a result, the efficiencies of energy transfer, oxygen injection, and alloy addition increases in the EAF process. Typical values of process improvementsare 5-15 kWh/t electric energy savings and corresponding decrease of power-on time, and +0.5% yield. Recent case studies and new developments are presented. It is shown that gas purging systems are a modern EAF technology to increase energy efficiency with minimum pay-back period.

Further data

Item Type: Article in a book
Refereed: Yes
Keywords: EAF; gas purging; process improvement; energy savings; alloy savings
Institutions of the University: Faculties > Faculty of Engineering Science
Research Institutions > Affiliated Institutes > Fraunhofer Center for High Temperature Materials and Design (HTL)
Result of work at the UBT: No
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 10 Sep 2019 07:43
Last Modified: 10 Sep 2019 07:43
URI: https://eref.uni-bayreuth.de/id/eprint/52169