MODELING OF THE THERMAL STATE OF AIR TUYERES FOR BLAST FURNACES
https://doi.org/10.17073/0368-0797-2016-9-622-627
Abstract
The calculation methods of heat losses and temperature were adapted to the air tuyeres for blast furnaces. The influence of gas-thermal coatings and insulating paste on the thermal condition of the air tuyeres was investigated with the help of a linear program in EXCEL. It is shown that the presence of the inserts has a greater impact on reducing heat loss through the blow channel than the application of aluminum coatings. The creation of the air gap between the insert and the inner glass leads to a further reduction of heat loss. Thus, the greater thickness of the insert installed without a gap in the blow channel leads to the less heat loss through the blow channel. If the insert is installed with a gap, its thickness almost does not effect on the heat loss through the blow channel.
About the Authors
A. G. RadyukRussian Federation
Dr. Sci. (Eng.), Professor, Leading Researcher of the Chair “Technology and Equipment for Pipe Production”
A. E. Titlyanov
Russian Federation
Cand. Sci. (Eng.), Senior Researcher of the Chair “Technology and Equipment for Pipe Production”
T. Yu. Sidorova
Russian Federation
Senior Lecturer of the Chair “Technology and Equipment for Pipe Production” �ва
References
1. Borodulin A.V. Nauchnye osnovy ratsional’nogo ispol’zovaniya energeticheskikh resursov v domennom proizvodstve: Avtoref. diss. d-ra tekh nauk [Scientific bases of rational use of energy resources in blast-furnace production: Extended Abstract of Cand. Dr. Sci. Diss.]. Ekaterinburg, 1994, 46 p. (In Russ.).
2. Borodulin A.V., Vasil’ev A.P., Glushchenko E.L. etc. On the issue of the informational content of heat loss at operating area of blast furnace. In: Materialy 2–oi mezhdunarodnoi nauchno-prakticheskoi konferentsii “Avtomatizirovannye pechnye agregaty i energosberegayushchie tekhnologii v metallurgii”. Moskva. 3–5 dekabrya 2002 g. [Materials of the 2nd International Scientific and Practical Conference “Automated Furnace Units and Energy Saving Technolo gies in Metallurgy”. Moscow. December 3–5, 2002]. pp. 424–426. (In Russ.).
3. Bondarenko A.A., Gorbik A.S., Dyshlevich G.G. The study of heat stress of different parts of the tuyeres. Stal’. 1983, no. 7, pp. 11–12. (In Russ.).
4. Grigor’ev V.N., Urbanovich G.I., Urbanovich E.G. etc. Sposob podgotovki k rabote furmy domennoi pechi [Method of preparation for work of blast furnace tuyere]. Patent RF no. 2215043, MKI S21V7/16. Byulleten’ izobretenii. 2002, no. 30. (In Russ.).
5. Radyuk A.G., Titlyanov A.E., Lyapin S.S. etc. Sposob podgotovki furmy domennoi pechi [The method of preparing the tuyere of a blast furnace]. Patent RF no. 2387716, S21V7/16. Byulleten’ izobretenii. 2010, no. 12. (In Russ.).
6. Radyuk A.G., Titlyanov A.E., Vasil’ev D.S. etc. Sposob podgotovki k rabote vozdushnoi furmy domennoi pechi [Method of preparation for work of the air tuyere of blast furnace]. Patent RF no. 2465333, S21V7/16. Byulleten’ izobretenii. 2012, no. 30. (In Russ.).
7. Bagretsov E.D., Ruzhal’skii Yu.I. Dut’evaya furma domennoi pechi s ogneupornoi vstavkoi [Blast tuyere of a blast furnace with a refractory insert]. Certificate of authorship USSR no. 159870. MPK S21V. Byulleten’ izobretenii. 1964, no. 2. (In Russ.).
8. Radyuk A.G., Titlyanov A.E., Radyuk L.V. Sposob podgotovki k rabote vozdushnoi furmy domennoi pechi [Method of preparation for work of the air tuyere of blast furnace]. Patent RF no. 2491351, S21V7/16. Byulleten’ izobretenii. 2012, no. 32. (In Russ.).
9. Zhuk V.I. Analysis of thermal operation of the air tuyeres of the blast furnace. Vestnik priazovskogo gosudarstvennogo tekhnicheskogo universiteta. 2002. Issue 12, pp. 25–30. (In Russ.).
10. Lavrov V.V., Spirin N.A., Rybolovlev V.Yu. A model study of the wall temperature of the air tuyere of blast furnace. Izvestiya VUZov. Chernaya metallurgiya = Izvestiya. Ferrous Metallurgy. 2000, no. 2, pp. 46–49. (In Russ.).
11. Manshilin A. G., Skladanovskii E. N., Netsvetov V. I. etc. Dut’evaya furma domennoi pechi i sposob naneseniya zashchitnogo pokrytiya na dut’evuyu furmu domennoi pechi [Blast tuyere of a blast furnace and a method of applying a protective coating on the blast tuyere of a blast furnace]. Patent RF no. 2235789. MKI S21V7/16. Byulleten’ izobretenii. 2004, no. 15. (In Russ.).
12. Kutateladze S.S., Borishchanskii V.M. Spravochnik po teploperedache [Heat transfer: Handbook]. Leningrad– Moscow: Gosenergoizdat, 1959, 414 p. (In Russ.).
13. Kirillova N.L., Radyuk A.G., Gorbatyuk S.M. etc. Calculation of coefficients of heat transfer to surfaces of the air tuyere of a blast furnace from the hearth and hot blast. In: Sovremennye problemy gumanitarnykh i estestvennykh nauk: materialy XIII mezhdunarodnoi nauchno-prakticheskoi konferentsii 21–22 dekabrya 2012 g. v 2 t., t. I [Modern problems of Arts and Sciences: Proceedings of XIII International Scientific and Practical Conference on December 21–22, 2012, in 2 vols., vol. I]. Moscow: Izd-vo “Spetskniga”, 2012, pp. 132–135. (In Russ.).
14. Kirillova N.L., Radyuk A.G., Titlyanov A.E. Reducing heat loss through the surface of blast-furnace tuyeres. Metallurgist. 2014, vol. 57, no. 9–10, pp. 878–882.
15. Radyuk A.G., Titlyanov A.E, Kirillova N.L. The use of panels of carbon fabric for insulation of the surface of air tuyeres of blast furnaces. Chernaya metallurgiya. Byul. in-ta “Chermetinformatsiya”. 2015, no. 3, pp. 38–41. (In Russ.).
Review
For citations:
Radyuk A.G., Titlyanov A.E., Sidorova T.Yu. MODELING OF THE THERMAL STATE OF AIR TUYERES FOR BLAST FURNACES. Izvestiya. Ferrous Metallurgy. 2016;59(9):622-627. (In Russ.) https://doi.org/10.17073/0368-0797-2016-9-622-627