Relation Between Active Power of the Submerged Arc Furnace and the Electric Energy Consumption Indicator in the Process of Ferrosilicon Smelting

• Autorzy: Machulec B. , Bialik W. , Gil S.

Identyfikatory

DOI

10.24425/amm.2019.127591

• Języki publikacji: EN

Abstrakty

EN

Higher active power of a submerged arc furnace is commonly believed to increase its capacity in the process of ferrosilicon smelting. This is a true statement but only to a limited extent. For a given electrode diameter d, there is a certain limit value of the submerged arc furnace active power. When this value is exceeded, the furnace capacity in the process of ferrosilicon smelting does not increase but the energy loss is higher and the technical and economic indicators become worse. Maximum output regarding the reaction zone volumes is one of parameters that characterize similarities of furnaces with various geometrical parameters. It is proportional to d³ and does not depend on the furnace size. The results of statistical analysis of the ferrosilicon smelting process in the 20 MVA furnace have been presented. In addition to basic electrical parameters, such as active power and electrical load of the electrodes, factors contributing to higher resistance of the furnace bath and resulting lower reactive power P_x demonstrate the most significant effect on the electrothermal process of ferrosilicon smelting. These parameters reflect metallurgical conditions of ferrosilicon smelting, such as the reducer fraction, position of the electrodes and temperature conditions of the reaction zones.

Słowa kluczowe

EN

ferrosilicon; FeSi65; FeSi75; submerged arc furnace; active power of furnace; electric energy consumption

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2019
• Tom: Vol. 64, iss. 2
• Strony: 633--638
• Opis fizyczny: Bibliogr. 10 poz., rys., tab., wzory

Twórcy

autor

Machulec B.

• Silesian University of Technology. Dep. of Engineering Production, 8 Str Krasińsigo, 40-019 Katowice, Poland

autor

Bialik W.

• Silesian University of Technology, Institute of Metals Technology, 8 Str Krasińsigo, 40-019 Katowice, Poland

autor

Gil S.

• Silesian University of Technology, Institute of Metals Technology, 8 Str Krasińsigo, 40-019 Katowice, Poland

Bibliografia

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Uwagi

EN

1. This paper was partially created with the financial support of Polish Ministry for Science and Higher Education under internal grant BK221/RM0/2018 for Faculty of Materials Engineering and Metallurgy, Silesian University of Technology, Poland.

PL

2. Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).