Journals →  Chernye Metally →  2019 →  #8 →  Back

ArticleName The technology for preparation of a steel pouring ladle slide gate at JSC EVRAZ NTMK
ArticleAuthor P. N. Fedkin, A. V. Chiglintsev, P. A. Zazhigaev, Yu. A. Danilin

EVRAZ Holding LLC (Moscow, Russia):

P. N. Fedkin, Project Manager of Operation Improvements, E-mail:


EVRAZ NTMK JSC (Nizhniy Tagil, Russia):
A. V. Chiglintsev, Deputy Head of Basic Oxygen Converter Shop, E-mail:
P. A. Zazhigaev, Technical Director, E-mail:
Yu. A. Danilin, Chief Steelmaker, E-mail:


Oxygen lancing of the casting ladle slide gate contaminates steel with non-metallic inclusions, negatively aff ects the quality of billets made by continuous casting machines and casting speed, and increases waste casting. The root causes and factors preventing filling sand from freely falling from a slide gate taphole have been considered and identified based on the analysis of slide gate operation for casting ladles with shroud at EVRAZ NTMK Basic Oxygen Converter Shop No. 1. The proposed solution improves free opening performance of ladles (neither mechanical work nor oxygen lancing) from 95 to 99%. A technology to fill a casting ladle discharge channel with nozzle sand has been developed and implemented to ensure free fall of nozzle sand from the discharge channel. The provided commercial melting results confi rm the effectiveness of the proposed technology.
The authors are grateful to I. M. Zakharov, the head of the JSC EVRAZ NTMK basic oxygen converter shop, for the help in the experiments.

keywords Re-oxidation, filler sand, casting ladle, tundish, shroud, bridging, steel, slide gate

1. Efimov V. А. Secondary oxidation and refining during continuous casting of steel. Vestnik Priazovskogo Gosudarstvennogo Tekhnicheskogo Universiteta. 1999. Iss. 7. pp. 135–142.
2. Smirnov А. N., Pilyushenko V. L., Minaev А. А. et. al. Continuous casting processes. Donetsk: Don. NTU, 2002. 535 p.
3. Eronko S. P., Bykovskykh S. V. Steel casting. Equipment. Technology. Kiev: Tekhnika, 2003. 216 p.
4. Botnikov S. А. Modern atlas of defects in continuously cast billets and causes of breakthroughs of a metal crystallizing shell; 2nd edition. Volgograd, 2011. 97 p.
5. Heinrich B., Hackl G., Marschall H. U. Actual problems of metal flow in secondary metallurgy. Chernye Metally. 2016. No. 10. pp. 14–20.
6. Buhr А., Bruckhaus R., Fandrich R., Dannert Ch. The tendencies of the development of steel production technology with high purity and manufacture refractories. Chernye Metally. 2017. No. 4. pp. 29–37.
7. Clasen S., Dannert Ch., Redecker L., Sax А., Quirmbach P., Weinberg М. The method of determination of secondary oxidation potential for refractories in steelmaking furnaces. Chernye Metally. 2017. No. 5. pp. 29–33.
8. USSR copyright certificate, No. 661974. Method for preparation of a slide gate. A. S. Kornienko, A. N. Nagorny, O. V. Nosochenko, Yu. I. Zimin, N. V. Deushin, V. V. Polyakov, V. I. Semetskov, S. B. Legkov, G. M. Guzenfeld / Applied: 12/10/1979; published: 07.06.1981. Bulletin No. 21.
9. USSR copyright certificate No. 835639. Method for preparation of a slide gate. A. Ya. Oleksienko, V. P. Stepanova, E. I. Zhalo, G. E. Kalita, L. I. Evich, E. N. Yastremskaya / Applied: 12.10.1979; published: 07.06.1981. Bulletin No. 21.
10. Roginsky B. А. Bulk material dosing. Edited by Mordkovich B. I. Moscow: Khimiya, 1978. 174 p.
11. Technological instruction of JSC «EVRAZ NTMK» PTI 006-ST-29-2017.
12. Bombeck М. А., Janssen М., Dannert Ch., Deinet Th., Ona I. А. Fundamental research on the functionality of well fillers. Chernye Metally. 2017. No. 3. pp. 22–29.
13. Shubin I. N., Sviridov М. М., Tarov V. P. Technological machines and equipment. Bulk materials and their properties: tutorial. Tambov: Izdatelstvo Tambovskogo gosudarstvennogo universiteta, 2005. 76 p.
14. GOST 3956-76. Silica gel for industrial use. Specifications. Introduced: 01.01.1977.
15. Eronko S. P., Mechik S. V., Tkachev М. Yu., Pogorelov I. S., Sarkisyan Е. S. Development of a system for mechanized feeding the starting mixture to the ladle gate channel. Izvestiya vuzov: Chernaya metallurgiya. 2017. No. 3. pp. 54–60.

Language of full-text russian
Full content Buy