Factors Affecting the Increase in the Pre-reduction Scale of the Fe-Ni Ore in the Rotary Kiln

Year 2017, Volume: 12 Issue: 1, 52 - 58, 30.03.2017

Zarife Bajraktari-gashi Muharrem Zabeli

Abstract

The
pre-reduction process in the rotary kiln is the key factor in acquiring the
metal of iron-nickel from the electric furnaces.This paper's purpose is the
impact of factors affecting the growth of the pre-reduction scale, and presents
the factors affecting the pre-reduction scale of the iron-nickel ore in the
rotary kilns in the new Foundry of the new Ferronikel in Drenas. The research
was conducted in the industrial and laboratory route in the new Foundry of the
new Ferronikel in Drenas through the years 2007-2014, whereas the industrial
simulations of four cases were conducted in the laboratory of Fe-Ni
Kavadarci-Macedonia in the laboratory kiln "Linder" in 2012. Through
industrial research the average of the pre-reduction scale of the iron-nickel
ore for the analyzed years exceeds 45%. Whereas, during  industrial simulations the pre-reduction
scale for the four analyzed charges in the rotary kilns increases by 40% in
comparison to the industrial cases.

Keywords

pre-reduction, iron-nickel, ore, rotary kiln, average, calcine, percentage

References

• Anonym. (2014) Daily, monthly and yearly reports of obtaining Fe-Ni, official documentation of smelting complex of New CoFerronikeli Complex - Drenas, 2009 -2014.
• BajraktariGashi Z, (2012) Theoretical and experimental research in order to reach optimum technical, technologic and productive parameters during qualitative reduction of Ni ore in Fe-Ni foundry in Drenas. PHD, Mitrovica, Republic of Kosovo.
• BajraktariGashi Z, Maksuti Rr, Murati N, (2015) The Usage of Pet Kok is a Possibility of Reducing the Amount of Heavy Oil in the Rotary Kilns in the New Foundry of the New Ferronikel in Drenas. Appl. Mech. & Mat.749, 111-115.
• Gashi Z, Gashi I, Rama M, (2013) Mathematical modeling of nickel ores pre-reduction simulations in laboratory rotary kiln “Linder”. Int. J. Gen. Eng. & Tech. (IJGET), 2, 2.
• Gashi Z, ImeriSh, Lohja N, Zabeli M, Tahiraj N, Murati N, (2011) Experimental Research on prereduction of Nickel silicate ore in New Ferronickel Factory in Drenas, WSEAS and NAUNConferences, Corfu Island, Greece, July 14-17.
• Gashi Z, ImeriSh, Tahiraj N, Kosovo dry lignite treatment in the process of ore frying in the smelter of New Co Ferronickel in Drenas, SGEM-2011 11thInternational Multidisciplinary Scientific Geo Conference.
• Gashi Z, ImeriSh, Tahiraj N, Murati N, (2010) Drying of Ni in silicate ore dry machine and rotaryeffects on technological process in the rotary kiln in smelting complex of Ferronickel inDrenas, Alb-Shkenca, Tirana.
• Zabeli M, Bajraktari-Gashi Z, Haxhiaj A, (2016) Determination and Calculation of Components Cargo (Slag) During Smelting of Copper Ores. Int. J. Mine. Proc. & Extra. Metal., 1, 14-18.