Research of the Ore Reducing Furnaces Electrical Modes for Ferronicel Production
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Date
2025
Journal Title
Journal ISSN
Volume Title
Publisher
Ukrainian State University of Science and Technologies, Dnipro
Abstract
ENG: The paper presents the results of a study of the electrical modes of ferronickel furnaces OTF-1 and OTF-2 at the Pobuzhsky ferronickel plant. It was found that the furnaces operate in arcless mode. An asymmetrical voltage mode is observed: electrode casing - under, which indicates an unbalanced mode of the furnace. As a result of measurements, a significant transfer of power was detected in the area of the electrical circuit of the 4th, 5th, 6th electrodes. An analysis of the electrical mode of a 48 MVA round ferronickel furnace in the city of Hua-Hua (China) showed that the use of a furnace transformer without a voltage booster and an autotransformer makes it possible to provide the necessary electrical mode of ferronickel furnaces. An analysis of the electrical mode of a 90 MVA round ferronickel furnace in Guatemala showed the possibility of operating these furnaces in a combined mode, i.e. in the presence of an electric arc, which is controlled by the resistance of the electrodes and the power ratio in the electric arc and slag.
Description
V. Gladkih: ORCID 0000-0002-7279-8133; A. Nikolenko: ORCID 0000-0003-3808-4249
Keywords
ferronickel, ore thermal furnace, electric mode, mathematical modeling six-electrode furnace, КЕМ ім. Гасика, КЕЛІ
Citation
Shevchenko D. V., Ovcharuk A. N., Gladkih V. A., Bezugliy A. V., Nikolenko A. V. Research of the Ore Reducing Furnaces Electrical Modes for Ferronicel Production. Theory and Practice of Metallurgy. 2025. № 1 (146). P. 48–59. DOI: https://doi.org/10.15802/tpm.1.2025.07.