Preliminary communication

Technical and technologicAl solutions in development of FeSiAl alloys production from industrial wastes in submerged ARC furnace (SAF)

W. Bialik ; Faculty of Materials Engineering, Silesian University of Technology, Katowice, Poland
S. Gil orcid.org/0000-0003-3397-0620 ; Faculty of Materials Engineering, Silesian University of Technology, Katowice, Poland
S. Kozłowski orcid.org/0000-0001-9025-0377 ; Faculty of Materials Engineering, Silesian University of Technology, Katowice, Poland

Abstract

This article presents a description of the carbothermic process concerning production of iron-silicon-aluminum alloys with 55 to 75 wt. % of silicon and 4 to 20 wt. % of aluminum in industrial conditions. For the process, mining waste resulted from mechanical processing of coal being the source of silicon and aluminum compounds as well as high-ash fine coal as a reducer was used. A modern technological line for FeSiAl smelting was described, consisting of a SAF (fitted with two 7,75 MVA three-phase transformers and six self-baking electrodes) to ensure optimum power distribution in the furnace. In addition, technical and technological parameters of the process were presented with a particular emphasis placed on Al and Si yields.

Keywords

FeSiAl alloys; ferroalloys production; SAF; waste

Hrčak ID:

256033

URI

https://hrcak.srce.hr/256033

Publication date:

1.7.2021.

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