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Research of pellet electrosmelting efficiency in arc furnace under the carbon oxide post-combustion by fuel oxygen burners

https://doi.org/10.12737/19700

Abstract

Some features of heating and melting iron-rich pellets (IRP) by the method of charging the pellets through the axial ducts of electrodes are considered. When using this system of supplying iron ore raw materials through the holes in the electrodes, loose pellets fall into the impact zone of the electric arcs on the melt that ensures a high speed of their fusion. At the same time the technical-and-economic indices of the electrosmelting in the electric arc furnace (EAF) are improved. The use of the fuel-oxygen burners allow optimizing the IRP melting process improving the slagging conditions, heating, metal decarburization with post-combustion of final burning gases (CO, H2, etc.) in the arc furnace.

About the Authors

Victor A. Stepanov
Stary Oskol Technological Institute
Russian Federation


Lyudmila N. Krakht
Stary Oskol Technological Institute
Russian Federation


Eduard E. Merker
Stary Oskol Technological Institute
Russian Federation


Alexander Y. Kem
Don State Technical University
Russian Federation


Denis A. Kharlamov
Stary Oskol Technological Institute
Russian Federation


References

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11. Merker, E.E., Fedina, V.V., Kochetov, A.I. Energosberegayushchiy rezhim plavki okatyshey v 150-t DSP. [Energy-saving mode of pellet melting in 150-t ASF.] Elektrometallurgiya, 2003, no. 9, pp. 43–44 (in Russian).

12. Merker, E.E., Fedina, V.V., Kharlamov, D.A. Elektroplavka okatyshey v dugovoy pechi. [Pellet melting in arc furnace.] Bulletin “Ferrous Metallurgy”, 2004, no. 7, pp. 16–19 (in Russian).

13. Merker, E.E. Stepanov, V.A. Povyshenie energoeffektivnosti elektroplavki stali pri podache okatyshey v DSP cherez kanaly v elektrodakh. [Improvement in energy efficiency of steel electrosmelting while supplying pellets to ASF through the electrode ducts.] Bulletin “Ferrous Metallurgy”, 2014, no. 1, pp. 41–47 (in Russian).

14. Merker, E.E., Chermenev, E.A. Energosberegayushchie usloviya plavleniya metallizovannykh okatyshey pri ikh podache cherez trubchatye elektrody v vannu dugovoy pechi. [Energy-saving metallized pellet melting conditions when supplying them through the electrode ducts to the arc furnace bath.] Stal', 2015, no. 1, pp. 23–28 (in Russian).


Review

For citations:


Stepanov V.A., Krakht L.N., Merker E.E., Kem A.Y., Kharlamov D.A. Research of pellet electrosmelting efficiency in arc furnace under the carbon oxide post-combustion by fuel oxygen burners. Vestnik of Don State Technical University. 2016;16(2):97-104. (In Russ.) https://doi.org/10.12737/19700

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