APPLICATION OF VORTEX TECHNOLOGIES OF REFRACTORY COATING FORMATION FOR CONVERTER LINING. REPORT 1. FEATURES OF LIQUID SLAG CRUSHING AT BLOWING BY VORTEX TUYERE
https://doi.org/10.17073/0368-0797-2015-10-756-760
Abstract
The development of blowing devices with special designs including
vortex lances for maximum spraying of molten slag is the promising
way of increasing the effi ciency of refractory coatings application for converter lining. The numerical simulation of liquid slag crushing has been carried out at different modes of blowing with vortex tuyeres with the use of the main conditions of the mechanics of gas-liquid systems. It has been found out that the particle sizes of the slag carried out of the interaction zone are determined by the gas velocity and gas discharge. The decrease of slag viscosity characteristics helps to reduce the minimum size of the particles. When the slag blowing in the mode of “break”, slag melt foaming is possible, resulting in a decrease in the rate of slag particles and affects adversely the creation of skull on the converter lining.
Keywords
сonverter,
vortex tuyere,
jet velocity,
liquid slag,
crushing,
drop size,
blowing,
refractory coating
About the Authors
A. N. Kalinogorskii
Siberian State Industrial University (42, Kirov str., Novokuznetsk, Kemerovo Region, 654007, Russia)
Russian Federation
Russian Federation
Postgraduate of the Chair of Ferrous Metallurgy
E. V. Protopopov
Siberian State Industrial University (42, Kirov str., Novokuznetsk, Kemerovo Region, 654007, Russia)
Russian Federation
Russian Federation
Dr. Sci. (Eng.), Professor of the Chair of Ferrous Metallurgy, Rector
A. G. Chernyatevich
Institute of Ferrous Metallurgy of Ukrainian National Akade my of Science (1, Ak. Starodubova sqr., Dnepropetrovsk, 49050, Ukraine)
Russian Federation
Russian Federation
Dr. Sci. (Eng.), Professor, Head of the Department of Physical and Technical Problems in Steel Metallurgy
S. V. Feiler
Siberian State Industrial University (42, Kirov str., Novokuznetsk, Kemerovo Region, 654007, Russia)
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Assist. Professor, Head of the Chair of Ferrous Metallurgy
V. I. Bagryantsev
Siberian State Industrial University (42, Kirov str., Novokuznetsk, Kemerovo Region, 654007, Russia)
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Head of the Experimental Laboratory of Automated Energy Generating Technologies
References
1. Petrakova T.M., Ivanova I.M. The work results of ferrous metal enterprises in Russia for the 9 months in 2014. Chernaya metallurgiya: bull. NTI. 2014, no, 1, pp. 6–9. (In Russ.).
2. Lyakishev N.P., Shalimov A.G. Sravnitel’naya kharakteristika sostoyaniya kislorodno-konverternogo proizvodstva stali v Rossii i za rubezhom [Comparative state characteristics of basic oxygen steel production in Russia and abroad]. Moscow: Eliz, 2000. 64 p. (In Russ.).
3. Aizatulov R.S., Protopopov E.V., Sokolov V.V., Komshukov V.P., Buimov V.A., Chernysheva N.A. Improvements of the ways to repair linings of a 160-tonne converter using neutral gases. Stal’. 1999, no. 5, pp. 39–43. (In Russ.).
4. Nugumanov R.F., Protopopov E.V., Chernyatevich A.G., Galiullin T.R. New approaches in the improvement of slag scull coating technology on the converter lining. Izvestiya VUZov. Chernaya metallurgiya = Izvestiya. Ferrous Metallurgy. 2006, no. 12, pp. 7–12. (In Russ.).
5. Yavoiskii V.I., Yavoiskii A.V., Sizov A.M. Primenenie pul’siruyushchego dut’ya pri proizvodstve stali [Usage of pulsating blowing at steel producing]. Moscow: Metallurgiya, 1985. 176 p. (In Russ.).
6. Abramovich G.N., Girshovich T.A., Krasheninnikov S.Yu., Sekundov A.N., Smirnova I.P. Teoriya turbulentnykh strui [Theory of turbulent jets]. Moscow: Nauka, 1984. 716 p. (In Russ.).
7. Girshovich T.A., Leonov V.A. Infl uence of phase differential velocity on turbulent jet structure, carrying heavy impurities. Inzhenernofi zicheskii zhurnal. 1982, no. 4, pp. 541–548. (In Russ.).
8. Gol’dshtik M.A. Vikhrevye potoki [Vortex fl ows]. Novosibirsk: Nauka, 1981. 367 p. (In Russ.).
9. Gupta A.K., Lilley D.G., Syred N. Swirl fl ows. Abacus Press, England, 1984, 475 p. (Russ.ed.: Gupta A., Lilley D., Syred N. Zakruchennye potoki. Moscow: Mir, 1987. 588 p.).
10. Kutateladze S.S., Volchkov E.P., Terekhov V.I. Aerodinamika i teplomassoobmen v ogranichennykh vikhrevykh potokakh [Aerodynamics and heat-mass exchange in restricted vortex fl ows]. Novosibirsk: AN SSSR, 1987. 282 p. (In Russ.).
11. Feiler S.V., Protopopov E.V., Chernyatevich A.G., Kalinogorskii A.N., Bagryantsev V.I. Study of the peculiarities of the usage of vortex fl ows for refractory coating on the converter lining. Izvestiya VUZov. Chernaya metallurgiya = Izvestiya. Ferrous Metallurgy. 2014, no. 8, pp. 28–33. (In Russ.).
12. Bagryantsev V.I., Nikolaev A.L., Poltoratskii L.M., Chevalkov A.V. Causes of breakdown of oxygen-powder lances. Steel in Translation. 1988, Vol. 18, no. 2, pp. 59–61.
13. Baptizmanskii V.I., Medzhibozhskii M.Ya., Okhotskii V.B. Konverternye protsessy proizvodstva stali. Teoriya, tekhnologiya, konstruktsii agregatov [Converter processes of steel production. Theory, technology, set constructions]. Kiev, Donetsk: Vishcha shkola, 1984. 343 p. (In Russ.).
14. Bagryantsev V.I., Volchkov E.P., Terekhov V.I., Titkov V.I. Issledovanie techeniya v vikhrevoi kamere lazernym dopplerovskim izmeritelem skorosti [Researches of fl ows in a vortex chamber with laser Doppler velocimeter]. Novosibirsk, 1980. (In Russ.).
15. Kutateladze S.S., Nakoryakov V.E. Teplomassoobmen i volny v gazozhidkostnykh sistemakh [Heat-mass exchange and waves in gas-liquid systems]. Novosibirsk: Nauka. Sibirskoe otdelenie, 1900. 301 p. (In Russ.).
Review
For citations:
Kalinogorskii A.N., Protopopov E.V., Chernyatevich A.G., Feiler S.V., Bagryantsev V.I. APPLICATION OF VORTEX TECHNOLOGIES OF REFRACTORY COATING FORMATION FOR CONVERTER LINING. REPORT 1. FEATURES OF LIQUID SLAG CRUSHING AT BLOWING BY VORTEX TUYERE. Izvestiya. Ferrous Metallurgy. 2015;58(10):756-760. (In Russ.) https://doi.org/10.17073/0368-0797-2015-10-756-760
Views:
520
Email this article 