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Determination of adhesion stages of the Fe-Ni ore at the Ferronikeli plant in Drenas

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Category: Content №5 2021

Last Updated on 29 October 2021

Published on 30 November -0001

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Authors:

Zarife Bajraktari-Gashi, orcid.org/0000-0003-4770-0664, University Isa Boletin of Mitrovica, Faculty of Geoscience, Department Materials of Metallurgy, Mitrovica, the Republic of Kosovo, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., This email address is being protected from spambots. You need JavaScript enabled to view it.

Muharrem Zabeli, orcid.org/0000-0001-6712-0005, University Isa Boletin of Mitrovica, Faculty of Geoscience, Department Materials of Metallurgy, Mitrovica, the Republic of Kosovo, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., This email address is being protected from spambots. You need JavaScript enabled to view it.

Erard Morina, orcid.org/0000-0003-3799-6836, NewCo Ferronikeli Complex L.L.C., Balkan Finance Investment Group, Gllogoc, the Republic of Kosovo

повний текст / full article

Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2021, (5): 037 - 042

https://doi.org/10.33271/nvngu/2021-5/037

Abstract:

Purpose. The process of calcine production in rotary kilns at the Ferronikeli plant in Drenas is realized with great difficulties as a result of the formation of large adhesions in the areas of rotary kilns. So far, the removal of load adhesions during the work process inside the rotary kilns is achieved only by their physical removal. The purpose of the paper is to determine the factors in reducing adhesions in the process of calcine production in the areas of rotary kilns, in the Ferronikeli plant in Drenas.

Methodology. Chemical analysis of iron-nickel ore. The determination of the composition of the adhesives was performed with the X-RAY device, in the laboratory of the Ferronikeli plant. Method with the software Calphad 2020, at the University of Ljubljana.

Findings. From the composition of iron-nickel ore, the composition of adhesives in rotary kilns, we manage to determine the thermodynamic phases and exothermic and endothermic processes that take place in the process of rotary kilns. From the determinations of the composition of the adhesives in the software alphad 2020, we manage to determine one of the factors that affect the formation of adhesives based on the stages during the process, which do not have a stability, as a result of high moisture content of iron-nickel ores.

Originality. Based on the study at the Ferronikeli plant, shovels were placed on the walls of the rotary kilns in the three areas, the removal of fireclay bricks, the placement of anchored concrete and the project for the placement of two kilns for kiln ore were started.

Practical value.The placement of the shovels has increased the temperature inside the rotary kilns. While the placement of dryers will have an impact on reducing the adhesions inside the rotary kilns and from the economic point of view, we will have a reduction of fuels in the load of the rotary kilns.

Keywords: Fe-Ni ore, adhesion, Calphad, stages, sub-stages

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