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ASSESSMENT OF MAGNITUDE AND IMPACT OF ELECTROMAGNETIC FORCESIN BATH OF LADLE–FURNACE AC

https://doi.org/10.17073/0368-0797-2014-9-40-44

Abstract

The design procedure are described with the estimation of values of the electromagnetic parameters that arise in a bath with capacity of 60 t of ladle–furnace (LF) AC and DC during the heating of molten metal by arc with the same input power – 7.7 MW. The features of the current density distribution and electromagnetic force (e.m.f.) into the ladle bath are shown depending on the type of current used by the aggregate LF. Numerically studied the effect of three-dimensional formulation of e.m.f. with the nature of changes in the conditions of mixing and melt  flow rates depending on the intensity of argon feed through asymmetrically located in the bottom of ladle blowdown node. The rational modes are installed from the standpoint of effective influence e.m.f. by melt mixing process and energy-saving on the melt processing in aggregate LF AC ladle of studied design.

About the Authors

V. P. Piptyuk
Institute of Ferrous Metallurgy named after Nekrasov Z.I., Ukrainian National Academy (1, Ak. Starodubova sqr., Dnepropetrovsk, 49050, Ukraine)
Ukraine
Cand. Sci. (Eng.), Senior Researcher


I. V. Krikent
Dneprodzerzhinsk State Technical University (2, Dneprostroevskaya str., Dneprodzerzhinsk, Dnepropetrovsk Region, 51900, Ukraine)
Ukraine

Lecturer of the Chair of Welding



S. E. Samokhvalov
Dneprodzerzhinsk State Technical University (2, Dneprostroevskaya str., Dneprodzerzhinsk, Dnepropetrovsk Region, 51900, Ukraine)
Ukraine

Dr. Sci. (Eng.), Head of the Chair of Applied Mathematics



S. V. Grekov
Institute of Ferrous Metallurgy named after Nekrasov Z.I., Ukrainian National Academy (1, Ak. Starodubova sqr., Dnepropetrovsk, 49050, Ukraine)
Ukraine

Research associate



D. Yu. Kabakov
Dneprodzerzhinsk State Technical University (2, Dneprostroevskaya str., Dneprodzerzhinsk, Dnepropetrovsk Region, 51900, Ukraine)
Ukraine

Postgraduate



References

1. Piptyuk V.P., Krikent I.V, Samokhvalov S.E., etc. Vliyanie postoyannogo toka na kharakter massoperenosa v metallicheskom rasplave ustanovki kovsh-pech’ . Part 1. Deistvie elektromagnitnykh sil. Teoriya i praktika metallurgii [Effect of DC on the nature of the mass transfer in molten metal at ladle furnace. Part 1: The action of electromagnetic forces. Theory and practice of metallurgy]. 2007, no. 4–5. pp. 14–17. (In Russ.).

2. Yachikov I.M., Zaretskaya E.M. Magnetical fi eld behaviour close to electric arc furnace electrodes analysis with mathematical modeling. Izvestiya VUZov. Chernaya metallurgiya = Izvestiya – Ferrous Metallurgy. 2011, no. 1, pp. 18–21. (In Russ.).

3. Atabekov G.I. Osnovy teorii tsepei [Basics of circuit theory]. Moscow: Energiya, 1969. 424 p. (In Russ.).

4. Bronshtein M.S., Semendyaev K.A. Spravochnik po matematike dlya inzhenerov i uchashchikhsya VTUZov [Handbook of mathematics for engineers and students of technical colleges]. Moscow: Nauka. 1986. 544 p. (In Russ.).

5. Piptyuk V.P., Polyakov V.F., Krikent I.V, Samokhvalov S.E., etc. Study of mass transfer of iron-carbon melt processing at the facility of ladle furnace with direct current. Izvestiya VUZov. Chernaya metallurgiya = Izvestiya – Ferrous Metallurgy. 2011, no. 10, pp. 66–69. (In Russ.).

6. Piptyuk V.P., Polyakov V.F., Samokhvalov S.E. etc. Faktory i ikh vliyanie na parametry peremeshivaniya rasplava pri obrabotke na ustanovke kovsh-pech’ postoyannogo toka. Trudy XI Mezhdunarodnogo Kongressa staleplavil’shchikov – TRANSMET-2010. g. Nizhny Tagil. 3–8 oktyabrya 2010 g. [Factors and their influence on the mixing parameters of the melt in the processing in ladle-furnace DC, in: Proceedings of the XI International Congress of Steelmakers – TRANSMET. Nizhny Tagil. 3–8 October 2010]. Pp. 283–287. (In Russ.).

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Review

For citations:


Piptyuk V.P., Krikent I.V., Samokhvalov S.E., Grekov S.V., Kabakov D.Yu. ASSESSMENT OF MAGNITUDE AND IMPACT OF ELECTROMAGNETIC FORCESIN BATH OF LADLE–FURNACE AC. Izvestiya. Ferrous Metallurgy. 2014;57(9):40-44. (In Russ.) https://doi.org/10.17073/0368-0797-2014-9-40-44

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ISSN 0368-0797 (Print)
ISSN 2410-2091 (Online)