An impact of the ladle lining on the refining of reinforced steel when blowing with powders

Authors

  • Mustafa Babanli Azerbaijan State Oil and Industry University Azadlig ave., 16/21, Baku, Azerbaijan, AZ 1010, Azerbaijan
  • Ramin Karimov LLC Baku Steel Company Mir-Jalal str., 15, Baku, Azerbaijan, AZ1029, Azerbaijan
  • Aydin Bayramov LLC Baku Steel Company Mir-Jalal str., 15, Baku, Azerbaijan, AZ1029, Azerbaijan
  • Ibrahim Isa Abbasov Azerbaijan State Oil and Industry University Azadlig ave., 16/21, Baku, Azerbaijan, AZ 1010, Azerbaijan https://orcid.org/0000-0001-8111-2642

DOI:

https://doi.org/10.15587/1729-4061.2019.178015

Keywords:

ladle lining, powder blowing, desulfurization, resulfurization, dolomite lining, ladle furnace

Abstract

When refining steel by blowing powders, the ladle lining material plays a serious role. The dependency graphs of the degree of desulfurization on the consumption of silicocalcium powder during blowing in ladles lined with various materials have been presented. It has been noted that the amount of FeO in the slag seriously affects the average degree of desulfurization. With a large amount of FeO in the slag, the degree of resulfurization is greatly increased. The placement plan of the unit for refining the liquid steel in the ladle has been illustrated. Simultaneously, for powder blowing, a device diagram of the ladle furnace fitted with equipment for blowing liquid steel with powders has been presented. In this equipment, powder lining can be used and steel blowing with silicocalcium based powders can be carried out. The degree of desulfurization is also seriously affected by the initial amount of sulfur in the metal charge for steelmaking The presence of a roof in the pouring ladles improves the conditions for metal blowing, oxidation and metal loss are reduced.

It has been observed that the process of refining liquid steel in a ladle is complex and depends on many factors. The amount of sulfur in the primary metal charge, the lining of the ladle, the composition of the powder of the blown material and the technological parameters of the blowing are important. The complete desulfurization of steel by blowing with powders primarily depends on the initial amount of sulfur in the metal. It has been found that there is a linear dependence of the final sulfur content on its initial content in steel when metal is blown in a ladle with a mixture of 70 % MgO, 20 % CaO, and 10 % CaF2. The desulfurization of steel by blowing with powders, especially by blowing magnesium and calcium alloys, can be significantly affected by ladle lining

Author Biographies

Mustafa Babanli, Azerbaijan State Oil and Industry University Azadlig ave., 16/21, Baku, Azerbaijan, AZ 1010

Doctor of Technical Sciences, Professor, Rector

Ramin Karimov, LLC Baku Steel Company Mir-Jalal str., 15, Baku, Azerbaijan, AZ1029

PhD, Associate Professor, Vice President

Aydin Bayramov, LLC Baku Steel Company Mir-Jalal str., 15, Baku, Azerbaijan, AZ1029

PhD, Researcher, Deputy Director

Ibrahim Isa Abbasov, Azerbaijan State Oil and Industry University Azadlig ave., 16/21, Baku, Azerbaijan, AZ 1010

PhD, Associate Professor

References

  1. Smolyakov, A. S., Shakhov, S. I., Kerimov, R. (2017). Modernization of Baku Steel Company Metallurgical Plant Section CBCM for Producing Round Pipe Billets. Metallurgist, 61 (7-8), 543–548. doi: https://doi.org/10.1007/s11015-017-0530-9
  2. Kudrin, V. A. (2003). Teoriya i tehnologiya proizvodstva stali. Moscow: «Miri, OOO» izdatel'stvo AST», 528.
  3. Kozlov, L. Ya., Kolokol'tsev, V. M., Vdovin, K. N. et. al. (2003). Proizvodstvo stal'nyh otlivok. Moscow: MISIS, 352.
  4. Svenchanskiy, A. D., Smelyanskiy, M. Ya. (1970). Elektricheskie promyshlennye pechi. Ch. 2. Dugovye pechi. Moscow: Energiya, 264.
  5. Kerimov, R. I. (2019). Experience of implementation of physical methods in the treatment of electrostals. Tehnologiya mashinostroeniya i materialovedenie, 3, 73–82. doi: https://doi.org/10.26160/2542-2146-2019-3-73-82
  6. Kerimov, R. I., Bayramov, A. T. (2019). Improving the quality of high-quality billets through the use of electromagnetic stirring of metal. Sovremennye problemy teorii mashin, 7, 78–82. doi: https://doi.org/10.26160/2307-342X-2019-7-78-82
  7. Schürmann, E., Fünders, P., Litterscheidt, H. (1975). Dampfdruck des Calciums über Calcium-Silicium- und Calcium-Aluminium-Schmelzen sowie über Calcium-Aluminium-Silicium-Legierungen. Archiv Für Das Eisenhüttenwesen, 46 (8), 473–476. doi: https://doi.org/10.1002/srin.197503664
  8. Rahmanov, S. R., Topolov, V. L., Gasik, M. I., Mamedov, A. T., Azimov, A. A. (2017). Protsessy i mashiny elektrometallurgicheskogo proizvodstva. Baku, 568.
  9. Knyuppel', G. (2004). Raskislenie i vakuumnaya otrabotka stali. Moscow: Metallurgiya, 416.
  10. Smirnov, N. A. (2015). Sovremennye metody analiza i kontrolya produktov proizvodstva. Moscow: Metallurgiya, 256.
  11. Smolyakov, A. S., Shakhov, S. I., Kerimov, R. I. (2017). Modernization of billet CCMOF metallurgical plant Baku Steel Company for producing tube rounds. Metallurg, 7, 37–41.
  12. Aslanov, T. I. (2002). Fundamentals of metal technology and welding in construction. Baki: Təhsil, 528.
  13. Sokolov, G. A. (1977). Vnepechnoe rafinirovanie stali. Moscow: Metallurgiya, 208.
  14. Knop, K., Rommerswinkel, H.-W. (1974). Kinetik der Desoxidation und Entschwefelung von Stahlschmelzen durch Calcium. Archiv Für Das Eisenhüttenwesen, 45 (8), 493–497. doi: https://doi.org/10.1002/srin.197403912
  15. Smolyakov, A. S., Shakhov, S. I., Kerimov, R. I., Rafiev, O. Y. (2017). The Reconstruction of the Existing Billet Continuous Caster at the Baku Steel Company in order to Cast the Large Billets for the Pipe and Tube Industry Needs. Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information, 1, 43–46. Available at: https://chermetinfo.elpub.ru/jour/article/view/535/502#
  16. Smolyakov, A. S., Shakhov, S. I., Kerimov, R. (2017). Modernization of Baku Steel Company Metallurgical Plant Section CBCM for Producing Round Pipe Billets. Metallurgist, 61 (7-8), 543–548. doi: https://doi.org/10.1007/s11015-017-0530-9
  17. Fischer, W. A., Wahlster, M. (1957). Untersuchungen über die Abscheidungsgeschwindigkeit primärer Desoxydationsprodukte aus Eisenschmelzen. Archiv Für Das Eisenhüttenwesen, 28 (10), 601–609. doi: https://doi.org/10.1002/srin.195702183
  18. Spelitsin, R. I. (1975). Issledovanie zaglubleniya elektricheskoy dugi v zhidkuyu vannu v usloviyah vysokomoshchnyh DSP. Elektrotermiya, 12, 10–11.
  19. Shakhov, S. I., Kerimov, R. I. (2018). Modernization of the existing high-grade continuous caster of the plant “Baku Steel Company” for the purpose of round tube billets production. Tyazheloe mashinostroenie, 5, 9–13.
  20. Kerimov, R. I. (2019). Improving steel melting intensity in the process of electrosmelting from waste and pellets (HBI). Eastern-European Journal of Enterprise Technologies, 3 (1 (99)), 35–42. doi: https://doi.org/10.15587/1729-4061.2019.168352

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Published

2019-09-12

How to Cite

Babanli, M., Karimov, R., Bayramov, A., & Abbasov, I. I. (2019). An impact of the ladle lining on the refining of reinforced steel when blowing with powders. Eastern-European Journal of Enterprise Technologies, 5(1 (101), 65–71. https://doi.org/10.15587/1729-4061.2019.178015

Issue

Section

Engineering technological systems