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Study of the Effect of Design Parameters on the Thermal Processes in a Blast Furnace Tuyere Using the ANSYS Software

Abstract

It is known that the maximum heat loss in the air-cooled tuyere of a blast furnace occur in the blowing channel. An effective way to reduce them is to install a heat-insulating ceramic insert. The heat-insulating inserts installed in the inner shell of air tuyeres for blast furnace no. 5 of PAO Severstal reduce the heat loss through a tuyere by 30%, and the inserts that insulate most of the inner surface of the head end additionally reduce the heat loss through a tuyere by 26.2%. The effect of design parameters on the thermal processes in the air tuyere of a blast furnace with a heat-insulating insert has been studied using the ANSYS software. In this work, to make the simulations more accurate, the whole air tuyere including a water-cooling circuit has been as a simulation area. The protrusion of the insert into the blowing channel by 2 mm improves the mixing of natural gas and blast, contributes to the gas combustion in the blowing channel, which leads to an increase in the heat loss through a blowing channel and a decrease in the durability of the insert. To increase the resistance of the insert and reduce the heat loss through a blowing channel, it is justified to use an elongated insert with variable thickness, which ranges from 13 to 8 mm in the blast direction, does not protrude into the blowing channel and has an angle between the normal to a wall of the inner nozzle and the axis of a hole for natural gas supply of about 30°. It is shown that to obtain the maximum heat content of the blast, which is affected by the combustion of natural gas and heat loss with cooling water in the blowing channel, the preferred option is one with an elongated insert with variable thickness, which changes from 10 to 8 mm in the blast direction, and with the axis of a hole for supplying natural gas perpendicular to a wall of the inner cup.

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Notes

  1. E.A. Volkov, A.L. Terebov, R.N. Maksiov, V.V Sukhanovskii, and E.A.Nikolaev took part in the studies.

REFERENCES

  1. Borodulin, A.V., Vasil’ev, A.P., Glushchenko, E.L., et al., Informative role of heat losses in working space of blast furnaces, Materialy II Mezhdunarodnoi nauchno-prakticheskoi konferentsii “Avtomatizirovannye pechnye agregaty i energosberegayushchie tekhnologii v metallurgii” (Proc. II Int. Conf. “Automated Furnace Systems and Energy-Saving Technologies in Metallurgy”), Moscow: Mosk. Inst. Stlai Splavov, 2002, pp. 424–426.

  2. Bondarenko, A.A., Gorbik, A.S., and Dyshlevich, G.G., Investigation of heat stress of various parts of the tuyeres, Stal’, 1983, no. 7, pp. 11–12.

  3. Dai, B., Long, H.-M., Ji, Y.-L., Rao, J.-T., and Liu, Y.-C., Theoretical and practical research on relationship between blast air condition and hearth activity in large blast furnace, Metall. Res. Tehcnol., 2020, vol. 117, no. 1, art. ID 113. https://doi.org/10.1051/metal/2020007

    Article  Google Scholar 

  4. Liu, S., Liu, X., Lyu, Q., Zhang, X., and Qie, Y., Study on the appropriate production parameters of a gas-injection blast furnace, High Temp. Mater. Process., 2020, vol. 39, no. 1, pp. 10–25. https://doi.org/10.1515/htmp-2020-0005

    CAS  Article  Google Scholar 

  5. Kikuo, A., JPN Patent 2779514, 2016.

  6. Radyuk, A.G., Titlyanov, A.E., and Sidorova, T.Yu., Thermal state of air tuyeres in blast furnaces, Steel Transl., 2016, vol. 46, no. 9, pp. 624–628. https://doi.org/10.3103/S0967091216090084

    Article  Google Scholar 

  7. Radyuk, A.G., Titlyanov, A.E., and Skripalenko, M.M., Modeling of the temperature field of blast furnace tuyeres using Deform-2D software, Metallurgist, 2017, vol. 60, nos. 9–10, pp. 1011–1015. https://doi.org/10.1007/s11015-017-0400-5

    CAS  Article  Google Scholar 

  8. Radyuk, A.G., Titlyanov, A.E., Tarasov, Yu.S., and Sidorova, T.Yu., Decreasing the heat losses at the air tuyeres in blast furnaces, Steel Transl., 2019, vol. 49, no. 4, pp. 257–260. https://doi.org/10.3103/S0967091219040119

    Article  Google Scholar 

  9. Volkov, E.A., Radyuk, A.G., Terebov, A.L., and Titlyanov, A.E., Increasing the operational efficiency of insulation liners in the air passage of blast-furnace tuyeres, Metallurgist, 2021, vol. 65, nos. 3–4, pp. 363–367. https://doi.org/10.1007/s11015-021-01165-2

    Article  Google Scholar 

  10. Denisov, M.A., Matematicheskoe modelirovanie teplofizicheskikh protsessov. ANSYS i SAE-proektirovanie: Uchebnoe posobie (Mathematical Modeling of Thermophysical Processes. ANSYS and CAE-Design: Manual), Yekaterinburg: Ural. Fed. Univ., 2011.

  11. Denisov, M.A., Komp’yuternoe proektirovanie. ANSYS: Uchebnoe posobie (Computer Design. ANSYS: Manual), Yekaterinburg: Ural. Fed. Univ., 2014.

  12. Xu, H., Sun, C., Liao, Z., Xu, J., and Kou, M., Numerical simulation of temperature and stress distributions inside the furnace tuyere, Proc. 8th Int. Conf. on Modeling and Simulation of Metallurgical Processes in Steelmaking (STEELSIM 2019), Warrendale, PA: Assoc. Iron Steel Technol., 2019, pp. 51–55. https://doi.org/10.33313/503/005

  13. Liu, X., Tang, G., Okosun, T., Silaen, A.K., Street, S.J., and Zhou, C.Q., Investigation of heat transfer phenomena in blast furnace tuyere/blowpipe region, Proc. ASME 2017 Heat Transfer Summer Conf., Washington, 2017, no. HT2017-4961. https://doi.org/10.1115/HT2017-4961

  14. Zhu, J., Jin, Y., Luo, X., Ye, C., Yuan, H., and Ai, F., Simulation of size of tuyere raceway and the tuyere blast volume distribution for blast furnace, Tezhong Zhuzao Ji Youse Hejin, 2017, vol. 37, no. 3, pp. 253–257. https://doi.org/10.15980/j.tzzz.2017.03.006

    Article  Google Scholar 

  15. Pistorius, P.C., Gibson, J., and Jampani, M., Natural gas utilization in blast furnace ironmaking: Tuyere injection, shaft injection and pre-reduction, in Applications of Process Engineering Principles in Materials Processing, Energy and Environmental Technologies, Wang, S., Free, M., Alam, S., Zhang, M., and Taylor, P., Eds., Cham: Springer-Verlag, 2017, pp. 283–292. https://doi.org/10.1007/978-3-319-51091-0_26

  16. Li, Y.-L., Cheng, S.-S., and Chen, C., Mathematical model of adjusting blast volume of blast furnace tuyeres, Dongbei Daxue Xuebao, 2016, vol. 37, no. 3, pp. 357–362. https://doi.org/10.3969/j.issn.1005-3026.2016.03.012

    Article  Google Scholar 

  17. Dong, Z., Wang, J., Zuo, H., She, X., and Xue, Q., Analysis of gas-solid flow and shaft-injected gas distribution in an oxygen blast furnace using a discrete element method and computational fluid dynamics coupled model, Particuology, 2017, vol. 32, pp. 63–72. https://doi.org/10.1016/j.partic.2016.07.008

    CAS  Article  Google Scholar 

  18. Jiang, J., Zhu, R., and Qiu, S., Effect of CO2 injection into blast furnace tuyeres on the pulverized coal combustion, High Temp. Mater. Process., 2021, vol. 40, no. 1, pp. 131–140. https://doi.org/10.1515/htmp-2021-0018

    CAS  Article  Google Scholar 

  19. Murao, A., Fukada, K., Matsuno, H., Sato, M., Akaotsu, S., Saito, Y., Matsushita, Y., and Aoki, H., Effect of natural gas injection point on combustion and gasification efficiency of pulverized coal under blast furnace condition, Tetsu-To-Hagane, 2018, vol. 104, no. 5, pp. 243–252. https://doi.org/10.2355/tetsutohagane.TETSU-2017-087

    Article  Google Scholar 

  20. Chai, Y.-F., Zhang, J.-L., Shao, Q.-J., Ning, X.-J., and Wang, K.-D., Experiment research on pulverized coal combustion in the tuyere of oxygen blast furnace, High Temp. Mater. Process., 2019, vol. 38, pp. 42–49. https://doi.org/10.1515/htmp-2017-0141

    CAS  Article  Google Scholar 

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ADDITIONAL INFORMATION

Authors ORCID ID. S.D. Saifullaev (0000-0003-4012-1782), S.V. Albul (0000-0003-1802-7378), A.G. Radyuk (0000-0001-6758-9911).

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Correspondence to S. D. Saifullaev, S. V. Albul, O. A. Kobelev, I. A. Levitskii or A. G. Radyuk.

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Translated by M. Astrov

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Saifullaev, S.D., Albul, S.V., Kobelev, O.A. et al. Study of the Effect of Design Parameters on the Thermal Processes in a Blast Furnace Tuyere Using the ANSYS Software. Steel Transl. 51, 879–885 (2021). https://doi.org/10.3103/S096709122112010X

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  • DOI: https://doi.org/10.3103/S096709122112010X

  • Keywords: blast furnace
  • air tuyere
  • heat-insulating insert
  • heat loss
  • computer simulations