BLANK HEATING IN METALLURGICAL FURNACES BASED ON A THEORETICAL COUNTERFLOW MODEL
https://doi.org/10.17073/0368-0797-2016-10-740-745
Abstract
The analysis of certain well-known and classical methods for calculations of thermo-massive slab heating under conditions of theoretical counterflow is presented. In case at hand, publications by B.I. Kitaev, E.M. Goldfarb, G.P. Ivantsov, and B.Ya. Lubov have been analyzed in full details. It was demonstrated that literature lacks a reliable engineering method of calculation of heating thermo-massive semi-products with simultaneous exposure to thermal radiation and convection, even though the basic class of heating furnaces in the rolling industry are running in the counterflow mode. The authors have worked out a solution for the problem of thermally massive blank heating subject to simultaneous thermal radiation and convection, as well as using a counterflow heat exchange configuration. The stated problem has been solved using the method of equivalent sources (MES) in accordance with the thermal layer format, for two successive stages of heat exchange, namely: – inertial and orderly (regular). To estimate the level of adequacy of the result, the derived solutions have been compared with the classical ones by Kavalderov A.V. and Kalugin V.I. for the case of radiate heating. The results show a satisfactory fit of estimated data for the solution by the method of equivalent sources and with the use of a hydrostatic integrator. The calculations for blank heating have been made for semi-products of classical forms (plate, cylinder and sphere). The proposed technique can be used in heat-engineering calculations as applied to heating-up of ingots and billets in steel-making furnaces to estimate metal temperature fields.
About the Authors
Yu. S. PostolʹnikRussian Federation
Dr. Sci. (Eng.), Professor
V. I. Timoshpol’skii
CJSC PII SIT “NEFTEGAZSTROIIZOLYATSIYA”, Kiev, Ukraine
Ukraine
Dr. Sci. (Eng.), Professor, Director of Science and New Equipment
Ukraine
Dr. Sci. (Eng.), Professor, Director of Science and New Equipment
I. A. Trusova
Belarusian National Technical University, Minsk, Belarus
Belarus
Dr. Sci. (Eng.), Professor, Head of the Chair of Metallurgical Technologies
Belarus
Dr. Sci. (Eng.), Professor, Head of the Chair of Metallurgical Technologies
References
1. Kitaev B.I. Teploobmen v shahtnykh pechah [Heat exchange in shaft furnaces]. Sverdlovsk-Moscow: Metallurgizdat, 1945, 152 p. (In Russ.).
2. Kitaev B.I. Teploobmen v domennykh pechakh [Heat exchange in blast furnaces]. Sverdlovsk-Moscow: Metallurgizdat, 1949, 628 p. (In Russ.).
3. Kavaderov A.V. Teplovaya rabota plamennykh pechei [Thermal work of open-fl ame furnaces]. Sverdlovsk: Metallurgizdat, 1956, 367 p. (In Russ.).
4. Kitaev B.I., Yaroshenko Yu.G., Suchkov V.D. Teploobmen v shakhtnykh pechakh [Heat exchange in shaft furnaces]. Sverdlovsk-Moscow: Metallurgizdat, 1957, 280 p. (In Russ.).
5. Kitaev B.I. Teploobmen v domennoi pechi [Heat exchange in blast furnaces]. Moscow: Metallurgiya, 1966, 356 p. (In Russ.).
6. Golʹdfarb E.M. Teplotekhnika metallurgicheskikh protsessov [Heat engineering in metallurgical processes]. Moscow: Metallurgiya, 1967, 439 p. (In Russ.).
7. Kitaev B.I., Timofeev V.N., Bokovikov B.A., Malkin V.M., Shvydkii V.S., Shklyar F.R., Yaroshenko Yu.G. Teplo- i massoobmen v plotnom sloe [Heat- and mass exchange in a dense layer]. Moscow: Metallurgiya, 1972, 432 p. (In Russ.).
8. Lisienko V.G., Lobanov V.I., Kitaev B.I. Teplofi zika metallurgicheskikh protsessov [Thermal physics in metallurgical processes]. Moscow: Metallurgiya, 1982, 240 p. (In Russ.).
9. Kavaderov A.V., Kalugin V.I Peculiarities of solid body heating by radiation in a counterflow. In: Nagrev metalla i rabota nagrevatelʹnykh pechey: sb. nauch. tr. VNIIMT [Heating of metal and work of heating furnaces: Coll. of scientific papers of VNIIMT]. Sverdlovsk: Metallurgizdat, 1960, no. 6, pp. 59–70. (In Russ.).
10. Postolʹnik Yu.S. On the calculation of heating temperature and time of solid bodies at a counterflow heat exchange. Izvestiya VUZov. Chernaya metallurgiya = Izvestiya. Ferrous Metallurgy. 1990, no. 6, pp. 84–86. (In Russ.).
11. Golʹdfarb E.M. Heating of bodies with diff erent forms with gases in uniflow and counterflow. ZhTF. 1954, vol. 24, no. 6, pp. 1012–1019. (In Russ.).
12. Ivantsov G.P., Lyubov B.Ya. Heating of lump materials in a conditions of a counterflow. DAN SSSR. 1952, vol. 85, no. 5, pp. 993–995. (In Russ.).
13. Rostkovskii S.E. Heat transfer by radiation in counterflow (to the theory of methodical reheating furnaces). In: Teplotekhnika slitka i pechei: Sb.tr. TsNIIChM [Heat engineering of ingot and furnaces]. Moscow: Metallurgizdat, 1953, vol. 2 (5), pp. 17–25. (In Russ.).
14. Postolʹnik Yu.S., Timoshpolʹskii V.I., Sichevoi A.P. Analysis of metal heat technology in combustion furnaces. Izvestiya VUZov. Chernaya metallurgiya = Izvestiya. Ferrous Metallurgy. 1979, no. 2. pp. 110–113. (In Russ.).
15. Peretyatʹko V.N., Temlyantsev N.V., Temlyantsev M.V., Mikhailenko Yu.E. Nagrev stalʹnykh slyabov [Heating of steel slabs]. Moscow: Teplotekhnik, 2008, 192 p. (In Russ.).
16. Timoshpolʹskii V.I., Samoilovich Yu.A., Trusova I.A., Filippov V.V., Nesenchuk A.P. Stalʹnoy slitok. V 3 t. T. 3. Nagrev [Steel ingot. In 3 volumes. Vol. 3. Heating]. Timoshpolʹskii V.I., Samoilovich Yu.A. eds. Minsk: Bel. nauka, 2001, 879 p. (In Russ.).
17. Baum V.A., Budrin D.V., Vaschenko A.I., Glinkov M.A., Granovskii B.L., Kitaev B.I., Kuzʹmin M.A., Mikhailenko A.Ya., Nazarov I.S., Plotnikov L.A., Semikin I.D., Taits N.Yu., Troib S.G. Metallurgicheskie pechi [Metallurgical furnaces]. Glinkov M.A. ed. Moscow: GNTI literatury po chernoi i tsvetnoi metallurgii, 1951, 975 p. (In Russ.).
18. Gubinskii V.I., Lu Chzhun U. Teoriya plamennykh pechei [Theory of combustion furnace]. Moscow: Mashinostroenie, 1995, 255 p. (In Russ.).
19. Gubinskii V.I., Timoshpolʹskii V.I., Olʹshanskii V.M., Mastrykov B.S., Nesenchuk A.P., Trusova I.A., Svinolobov N.P., Abramenkov Yu.Ya., Gres L.P., Mandelʹ N.L. Metallurgicheskie pechi. Teoriya i raschety. Uchebnik. V 2 t. [Metallurgical furnaces. Theory and calculations. Text-book in 2 vols.]. Timoshpolʹskii V.I., Gubinskii V.I. eds. Minsk: Bel. nauka, 2007, vol. 1, 596 p; vol. 2, 832 p. (In Russ.).
20. Kavaderov A.V., Samoilovich Yu.A. Heating peculiarities of a plate and cylinder simultaneously by radiation and convection . In: Nagrev metalla i rabota nagrevatelnykh pechei: Sb. nauch. tr VNIIMT [Heating of metal and work of heating furnaces: Coll. of scientific papers of VNIIMT]. Sverdlovsk, 1960, no. 6, pp. 44–58. (In Russ.).
21. Timoshpolʹskii V.I., Postolʹnik Yu.S., Andrianov D.N. Teoreticheskie osnovy teplofi ziki i termomekhaniki v metallurgii [Theoretical basis of thermal physics and thermal mechanics in metallurgy]. Minsk: Bel. nauka, 2005, 560 p. (In Russ.).
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For citations:
Postolʹnik Yu.S., Timoshpol’skii V.I., Trusova I.A. BLANK HEATING IN METALLURGICAL FURNACES BASED ON A THEORETICAL COUNTERFLOW MODEL. Izvestiya. Ferrous Metallurgy. 2016;59(10):740-745. (In Russ.) https://doi.org/10.17073/0368-0797-2016-10-740-745
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