ORAL
| SESSION: MetalsTueAM-R10 | 3rd Intl. Symp. on Sustainable Metals & Alloys Processing |
| Tue Oct, 24 2017 | Room: Maria Mercedes & Maria Beatriz |
| Session Chairs: TBA Session Monitor: TBA |
15:30: [MetalsTueAM07]
Impact of Refractory Lining in the Life-cycle of a 42 MW Electric Arc Furnace for Fe-Ni Production in Newco Ferronikeli Shefik
Imeri1 ; Naim
Tahiraj
2 ; Florian
Kongoli
3 ;
1MIM-GOLESH, Prishtina, Kosovo;
2Newco Ferronikeli Complex, Prishtina, Kosovo;
3Flogen Technologies Inc., Mont-Royal, Canada;
Paper Id: 47
[Abstract] The impact of two different types of refractory materials and layout in the life cycle of an electro-reduction Fe-Ni arc furnace, during regular production periods, with two different refractory lining materials, are described. It is shown the refractory lining consisting of a combination of magnesite bricks in vertical walls and graphite blocks in the slag levels has a life cycle about 3 times higher compared to the case when all walls were lined with magnesite bricks only. It was also found that although graphite blocks are very resistant to the molten slag, they are vulnerable to molten Fe-Ni alloy, which dilute carbon in it from graphite blocks. In order to avoid this, a modification has been proposed for the layout of the combined refractory lining that prevents the contact of graphite blocks with molten Fe-Ni when raising bath levels of molten metal inside the furnace occur, thus prohibiting carbon from dissolving into the molten alloy. This modification further increases the life cycle of the furnace refractory. This work is part of a long-term project undertaken in cooperation with FLOGEN Technologies Inc. In a subsequent future article, an overall physical simulation of all the above-mentioned phenomena will be presented.
