DISPLACEABLE HEAT EXCHANGE IN THE SMELTING ZONE AND FEATURES OF TRANSIENTS IN BLAST FURNACE
https://doi.org/10.17073/0368-0797-2015-9-672-676
Abstract
The problem of non-stationary heat exchange in smelting zone of the blast furnace, considering features of process of a fi ltration of pig-iron and slag through coke nozzle was formulated. Blanket law consists in not oscillatory character of transients of heat exchange in a course. However this position is fair only under condition of a constancy of the relation of thermal capacities of streams of materials and gas on height of a considered site of a course that does not fully refl ect the character of development processes exchange of heat at blast furnace height. It is shown, that not oscillatory transient in a blast furnace is observed if the indignation infl uences identically on a sign the bottom and top steps of heat interchange, and oscillatory – if it makes the opposite impact on these zones of the heat interchange. Thus the reregulation size will be that more than more essentially on size and on a sign this distinction is.
About the Authors
Yu. G. Yaroshenko
Ural Federal University named after the first President of Russia B.N. Yeltsin
Russian Federation
Russian Federation
Dr. Sci. (Eng.), Professor of the Chair “Thermal Physics and Informatics in Metallurgy”,
19, Mira str., Ekaterinburg, 620002
V. S. Shvydkii
Ural Federal University named after the first President of Russia B.N. Yeltsin
Russian Federation
Russian Federation
Dr. Sci. (Eng.), Professor of the Chair “Thermal Physics and Informatics in Metallurgy”,
19, Mira str., Ekaterinburg, 620002
N. A. Spirin
Ural Federal University named after the first President of Russia B.N. Yeltsin
Russian Federation
Russian Federation
Dr. Sci. (Eng.), Professor, Head of the Chair “Thermal Physics and Informatics in Metallurgy”,
19, Mira str., Ekaterinburg, 620002
V. V. Lavrov
Ural Federal University named after the first President of Russia B.N. Yeltsin
Russian Federation
Russian Federation
Dr. Sci. (Eng.), Professor of the Chair “Thermal Physics and Informatics in Metallurgy”,
19, Mira str., Ekaterinburg, 620002
V. Yu. Noskov
Ural Federal University named after the first President of Russia B.N. Yeltsin
Russian Federation
Russian Federation
Senior Lecturer of the Chair “Thermal Physics and Informatics in Metallurgy”,
19, Mira str., Ekaterinburg, 620002
References
1. Vegman E.F., Zherebin B.N., Pokhvisnev A.N., Yusfi n Yu.S., Kurnov I.F., Paren’kov A.E., Chernousov P.I. Metallurgiya chuguna: uchebnik dlya vuzov [Ironmaking: Textbook for universities]. Yusfin Yu.S. ed. Moscow: Akademkniga. 2004. 774 p. (In Russ.).
2. Spirin N.A., Ovchinnikov Yu.N., Shvydkii B.C., Yaroshenko Yu.G. Teploobmen i povyshenie effektivnosti domennoi plavki [Heat exchange and efficiency upgrading of blast-furnace melting]. Ekaterinburg: izd. UGTU – UPI, 1995. 242 p. (In Russ.).
3. De Castro Jose Adilson, Nogami Hiroshi, Yagi Jun-ichiro. Transient mathematical model of blast furnace based on multi-fluid concept, with application to high operation. ISIJ International. 2000. Vol. 40, no. 7, pp. 637–646.
4. Chew Sheng Jason, Zulli Paul, Yu Aibing. Modelling of liquid flow the blast furnace: Theoretical analysis of the effects of gas, liquid and packing properties. ISIJ International. 2001. Vol. 41, no. 10, pp. 1112–1121.
5. Jian Xu, Sheng-li Wu, Xin-ying Guo, Kai-ping Du. Numerical simulation on dynamic and static holdups of powder inside pre-reduction shaft furnace. Technical contribution to the 6th International congress on the science and technology of ironmaking – ICSTI, 42nd International Meeting on ironmaking and 13th International Symposium on Iron Ore, October 14th to 18th, 2012, Rio de Janeiro, RJ, Brazil, pp. 414–424.
6. Ovchinnikov Yu.N., Moikin V.I., Spirin N.A., Bokovikov B.A. Nestatsionarnye protsessy i povyshenie effektivnosti domennoi plavki [Displaceable processes and improving the efficiency of blast furnace melting]. Chelyabinsk: Metallurgiya, 1989, 120 p. (In Russ.).
7. Vosstanovlenie, teploobmen i gidrodinamika v domennom protsesse [Restore, heat transfer and hydrodynamics in blast furnace process]. Shavrin S.V. ed. Trudy instituta metallurgii UFAN SSSR. Part. 1, Issue 24, 1970. 130 p. Part. 2, Issue 26, 1972. 140 p. (In Russ.).
8. Onorin O.P., Gladyshev V.I., Kaplun L.I. Filtering of ferrous slag melts through the coke packing. Izvestiya VUZov. Chernaya metallurgiya = Izvestiya. Ferrous Metallurgy. 1997, no. 2, pp. 11–14. (In Russ.).
9. Mysik A.F., Kukarkin A.S., Kitaev B.I., Babushkin N.M. The investigation of heat transfer in the fl uidized layer of lumpy materials. Izvestiya VUZov. Chernaya metallurgiya = Izvestiya. Ferrous Metallurgy. 1975, no. 2, pp. 125–128. (In Russ.).
Review
For citations:
Yaroshenko Yu.G., Shvydkii V.S., Spirin N.A., Lavrov V.V., Noskov V.Yu. DISPLACEABLE HEAT EXCHANGE IN THE SMELTING ZONE AND FEATURES OF TRANSIENTS IN BLAST FURNACE. Izvestiya. Ferrous Metallurgy. 2015;58(9):672-676. (In Russ.) https://doi.org/10.17073/0368-0797-2015-9-672-676
Views:
594
Email this article 