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Recycling of EAF dust by smelting in the electric arc furnace and its influences on the EAF operation and dust generation
University of Science and Technology Beijing, School of Materials Science and Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
Uddeholms AB, System Control & Raw Materials.
University of Science and Technology Beijing, School of Materials Science and Engineering.
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2010 (English)In: Journal of Iron and Steel Research International, ISSN 1006-706X, E-ISSN 2210-3988, Vol. 17, no Suppl. 2, p. 132-141Article in journal (Refereed) Published
Abstract [en]

The 2(nd) campaign for recycling electric arc furnace dust (EAFD) has been carried out at Uddeholms AB (early as Uddeholm Tooling AB). Studies examining the effects of EAFD smelting on parameters related to EAF products, energy consumption and EAFD generation have been performed jointly by Uddeholms AB and MiMeR, Minerals and Metals Recycling Research Center, at Lulea University of Technology. 114 tonnes of EAFD were smelted in 121 EAF heats during the campaign. Dust samples were taken isokinetically from the exhaust gas system during the charger processing. Data of Zn contents in the dust samples were combined with other results to examine the influence of EAF operating conditions and EAFD recycling on Zn evaporation. Via EAFD recycling, Zn content in dust increased from 21.5% to 29.7% and the quantity of dust decreased by more than 40%. There were hardly any negative impact noted during the campaign on the furnace energy consumption and properties of steel and slag tapped from the EAF, while the recycled EAFD was amounted to around 2% of the steel weight

Place, publisher, year, edition, pages
2010. Vol. 17, no Suppl. 2, p. 132-141
National Category
Metallurgy and Metallic Materials
Research subject
Process Metallurgy
Identifiers
URN: urn:nbn:se:ltu:diva-2575Local ID: 034ab5e3-c5ea-45ca-b035-14d07fed06caOAI: oai:DiVA.org:ltu-2575DiVA, id: diva2:975428
Note
Godkänd; 2010; 20110721 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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Yang, QixingBjörkman, Bo

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