THE STUDY OF DUST FORMATION DURING ARC MELTING OF ZINC-COATED STEEL
https://doi.org/10.17073/0368-0797-2016-5-293-299
Abstract
The formation of dust was studied when plasma arc heating of galvanized steel in argon atmosphere at amperage from 170 – 190 A, argon consumption – 0.06 m3/h, pressure in the furnace – 0.1 MPa. It was found that zinc is almost completely evaporated during the first 30 seconds of melting. The structure of collected zinc containing dust is not homogenous; there are particles of different shapes (spherical, needle, spherical and filmy), sizes and composition. The elemental composition of individual particles of formed dust was analyzed at iCAP 6300 spectrometer (Thermo Electron, USA), on the basis of which their oxide composition was evaluated using TERRA program. It was shown that the dust is composed of particles, consisting of ZnO, Fe3O4, pure iron and carbon. Based on the results of the work it was concluded that during plasma-smelting of galvanized steel zinc containing dust can be traped separately from the remaining dust in the initial period of melting.
About the Authors
A. A. Alpatova
National University of Science and Technology “MISIS” (MISIS), Moscow, Russia
Russian Federation
Russian Federation
Senior Lecturer of the Chair “Metallurgy of Steel and Ferroalloys”
L. M. Simonyan
National University of Science and Technology “MISIS” (MISIS), Moscow, Russia
Russian Federation
Russian Federation
Dr. Sci. (Eng.), Professor of the Chair “Metallurgy of Steel and Ferroalloys”
N. Sh. Isakova
National University of Science and Technology “MISIS” (MISIS), Moscow, Russia
Russian Federation
Russian Federation
Student
References
1. Mirovoi rynok tsinka [Global zinc market].Available at URL: www. cmmarket.ru/markets/znworld.htm (Accessed: 15.08.2013). (In Russ.).
2. Internanional Lead and Zinc Study Group. Available at URL: http://www.ilzsg.org/static/statistics.aspx?from=20
3. Obgon zavershen. “Rusmet” [Overtaking is completed. “Rusmet”]. Available at URL: http://metaldaily.ru/news/news50255.html. (In Russ.).
4. Doronin I.E., Svjazhin A.G. Thermodynamic study of carbon reaction with steel-smelting dust components. Metallurgist. 2013, vol. 57, no. 1–2, pp. 41–48.
5. Trusov B.G. Software system “Terra” for phase and chemical equilibrium modeling. In: Tr. XXIV Mezhdunar. konf. po khimicheskoi termodinamike [Proceedings of the XXIV Intern. conf. on Chemical Thermodynamics]. St. Petersburg: 2002. (In Russ.).
6. Isakova N.Sh., Simonyan L.M., Khil’ko A.A. The research of dust formation during the arc heating of metals. Izvestiya VUZov. Chernaya metallurgiya = Izvestiya. Ferrous Metallurgy. 2014, no. 3, pp. 3–9. (In Russ.).
7. Popielska-Ostrowska P., Siwka J., Sorek A., Niesler M. Dust arising during steelmaking processes. Journal of Achievements in Materials and Manufacturing Engineering. 2012, vol. 55, Issue 2, pp. 772–776.
8. Pereskoka V.V., Kamkina L.V., Proidak Yu.S., Stovpchenko A.P., Kvichanskaya M.I. Restorative -heat treatment dust of EAF electrofilters. Visnik priazovs’kogo derzhavnogo tekhnichnogo universitetu. Tekhnichni nauki. 2010, no. 21, pp. 13–16. (In Russ.).
9. Guezennec A.G., Huber J.Ch., Patisson F., Sessiecq P., Birat J.P., Ablitzer D. Dust formation in electric arc furnace: birth of the particles. Powder Technology. 2005, vol. 157, no. 1–3, pp. 2–11.
10. Stovpchenko A.P., Kamkina L.V., Proidak Yu.S., Derevyanchenko I.V., Kucherenko O.L., Bondarenko M.Yu. Theoretical and experimental studies of the composition and the recoverability of EAF dust. Elektrometallurgiya. 2009, no. 8, pp. 29–36. (In Russ.).
11. Khil’ko A.A., Simonyan L.M., Lysenko A.A., Astashkina O.V., Mikhalchan A. A. Morphological features of eaf dust. Izvestiya VUZov. Chernaya metallurgiya = Izvestiya. Ferrous Metallurgy. 2013, no. 5, pp. 3–6. (In Russ.).
12. Simonyan L.M., Khil’ko A.A., Lysenko A.A., Mikhalchan A.A, Sel’nikova P.Yu. Iron and steel electrometallurgical dust as disperse system. Izvestiya VUZov. Chernaya metallurgiya = Izvestiya. Ferrous Metallurgy. 2010, no. 11, pp. 68–75. (In Russ.).
13. Sekula R., Wnek M., Selinger A. and Wróbel M. Electric arc furnace dust treatment: Investigation on mechanical and magnetic separation methods. Waste Management & Research. 2001, vol. 19, no. 4, pp. 271–275.
14. Kukurugya F., Havlik T., Kekki A., Forsen O. Chemical and structural characterization of different steelmaking dusts from stainless steel production. Kammel ́s Quo Vadis Hydrometallurgy. 2012, no. 6, pp. 93–101.
15. Korneev V.P., Sirotinkin V.P., Petrakova N.V., Dyubanov V.G., Leont’ev L.I. Physicochemical properties of the zinc-containing dusts of electric furnace steelmaking. Russian Metallurgy (Metally). 2013, vol. 2013, no. 7, pp. 507–512.
Review
For citations:
Alpatova A.A., Simonyan L.M., Isakova N.Sh. THE STUDY OF DUST FORMATION DURING ARC MELTING OF ZINC-COATED STEEL. Izvestiya. Ferrous Metallurgy. 2016;59(5):293-299. (In Russ.) https://doi.org/10.17073/0368-0797-2016-5-293-299
Views:
716
Email this article 