Ferroalloy production from ferrosilicon manganese dusts

V.M. Shevko; D.K. Aitkulov; A.D. Badikova; M.A. Tuleyev

doi:10.31643/2021/6445.27

Authors

V.M. Shevko M.Auezov South Kazakhstan University, Shymkent, Kazakhstan
D.K. Aitkulov National Center on complex processing of mineral raw materials of the Republic of Kazakhstan, Almaty, Kazakhstan
A.D. Badikova M.Auezov South Kazakhstan University, Shymkent, Kazakhstan
M.A. Tuleyev M.Auezov South Kazakhstan University

DOI:

https://doi.org/10.31643/2021/6445.27

Keywords:

dust, ferrosilicon manganese, steel shavings, coke, electric smelting.

Abstract

The article presents the results of studies on the influence of time, the amount of steel shavings and coke on the electric melting of ferrosilicon manganese dusts to obtain a ferroalloy. The research was carried out by the method of rotational planning of the second order (Box-Hunter plans) and by electric smelting of dust in laboratory ore-thermal arc furnace. Dust from the production of ferromanganese by LLP Taraz Metallurgical Plant, coke and steel shavings were used during the research. It was determined that to achieve αSi≥70%the process must be carried out in the presence of 25% coke and 8.1-9% steel shavings from the mass of dust for 55.8-60 minutes, to achieve αMn in an alloy of 80-85% the process must be carried out in the presence of 25% coke, 5.7-9.0% steel shavings for 41.2-54.4 minutes. When melting the charge containing 75.2% of dust, 18.8% of coke, 6% of steel shavings, within 60 minutes the weight of the ferroalloy was 258 g (38.8% of the weight of the charge or 51.6% of the weight of dust). The degree of extraction of manganese into the alloy was 82.3%, silicon - 66.1%. The resulting ferroalloy belongs to ferrosilicon manganese of the FeMnSi12 grade.

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Author Biographies

V.M. Shevko, M.Auezov South Kazakhstan University, Shymkent, Kazakhstan

Doctor of technical sciences, professor, head of department of Metallurgy of M. Auezov South Kazakhstan University, Shymkent, Kazakhstan.

D.K. Aitkulov, National Center on complex processing of mineral raw materials of the Republic of Kazakhstan, Almaty, Kazakhstan

Doctor of technical sciences, professor, director of scientific research of National Center on complex processing of mineral raw materials of the Republic of Kazakhstan, Almaty, Kazakhstan.

A.D. Badikova, M.Auezov South Kazakhstan University, Shymkent, Kazakhstan

Master of engineering and technology, specialist junior researcher of M. Auezov South Kazakhstan University. Shymkent, Kazakhstan.

M.A. Tuleyev, M.Auezov South Kazakhstan University

Master of Engineering, lecturer of department of Metallurgy of, M. Auezov South Kazakhstan University. Shymkent, Kazakhstan.

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