DOI: https://doi.org/10.15407/techned2016.04.092

MODELING OF PHYSICAL PROCESSES IN THE FURNACE UNIT WITH ELECTROMAGNETIC STIRRING OF LIQUID METAL

Authors
O.I. Bondar, O.I. Glukhenkyi, Yu.M. Goryslavets
Institute of Electrodynamics National Academy of Science of Ukraine,
pr. Peremohy, 56, Kyiv-57, 03680, Ukraine,
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Abstract

Multiphysical 3D modeling of electromagnetic, hydrodynamic and heating processes in reverberatory furnace for aluminum with combined electromagnetic stirrer of liquid metal, which creates traveling or pulsating magnetic fields depending on power type (multiphase or single phase power supply respectively) was performed. Four regimes of work of this stirrer, by which stirring of metal in furnace tank is carried out under the influence of separately traveling and separately pulsating magnetic field, in the regime of sequential action of these fields, and in case of reverse alternation in time of traveling magnetic field were investigated. The situation was modeled, according to which liquid metal in furnace was heated from above without stirrer over a period of time, after that heating was disabled and the stirrer was enabled simultaneously, which brought eventually to temperature equalization of metal in furnace tank. Established that using of regimes of stirrer with switching of magnetic fields allows a significant increase the effectiveness of stirring of melt in furnace tank. References 4, figures 3.

Key words: multiphysical modeling, reverberatory furnace, electromagnetic stirrer, traveling and pulsating magnetic fields, heating of melt.

Received:    29.01.2016
Accepted:    07.04.2016
Published:   21.06.2016

References

1. Podoltsev A.D., Kucheriava I.N. Multiphysics modeling of electrotechnical devices. Tekhnichna Elektrodynamika.  2015.  No 2.  P. 3-15. (Rus)
2. Tir L.L., Stolov M.Ya. Electromagnetic devices to control the circulation of the melt in electric furnaces. Мoskva: Меtallurgiia, 1991.  280 p. (Rus)
3. Dubodelov V.I., Gorislavets Yu.M., Glukhenkyi A.I., Fikssen V.M. Electromagnetic stirrer of liquid metal with alternate action of traveling and pulsating magnetic fields. Proceedings of the 8^th International Conference on Electromagnetic Processing of Materials EPM2015.  October 12-16, 2015.  Cannes, France.  P. 605-608.
4. Non ferrous casting.  Equipment MHD Technology.  Riga: Krãsainie lejumi, 2004.

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