Zarife BAJRAKTARİ-GASHİ, Muharrem ZABELİ

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

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,

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