Development of metallurgy in Russia and other CIS countries
ArticleName
Usage of beneficiation slimes of goethite-hydrogoethite ores as binding agents in pellet production
ArticleAuthors
Yu. S. Yusfin, V. V. Korovushkin, S. I. Anufrieva, V. V. Tikhomirov, G. A. Sladkova, N. M. Durov, D. B. Makeev, A. V. Temnov.
ArticleAuthorsData
Dr. Eng., Prof. Yu. S. Yusfin; Dr. Eng., Prof. V. V. Korovushkin; Ph.D. V. B. Tikhomirov; N. M. Durov, Postgraduate; D. B. Makeev, Postgraduate, National Research Technological University "Moscow Institute of Steel and Alloys"; Ph.D. S. I. Anufrieva; G. A. Sladkova, Chief Reseacher; Ph.D. A. V. Temnov, All-Russian Scientific Research Institute of Mineral Raw Materials named after N. M. Fedorovskogo, Russia; krvsch@mail.ru
Abstract
It is proposed to use beneficiation slimes of goethite-hydrogoethite ores as binding agents instead of bentonite in pellet production from concentrate of magnetite ores at Tagarskoe deposit. It is shown using chemical analysis, X-ray analysis, Mossbauer spectroscopy, thermal analysis, porometry and other methods of determination of metallurgical properties, that pellets with slime binding agents have better reducing ability, higher temperature of hematite dissociation and are characterized by slight decrease of cold strength. Calculation of blast furnace practice parameters with partial usage of pellets in charge materials with addition of 5 % slime and 0.5 % bentonite as binding agents has displayed that blast furnace parameters have not changed actually and saving of expensive bentonite is possible.
keywords
Goethite-hydrogoethite ores, bentonite, chemical analysis, spectroscopy, binding agents, mechanical properties, pellets, concentrate, slime.
References
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2. Pat. RF No. 2024634. 1994. Ivanov N. S., Vinichuk B. G., Kalashnikov A. T.
3. Pat. RF No. 2016100. 1992. Vegman E. F., Yusfin Yu. S., Zhak A. R.
4. Tikhomirov V. B., Pashkov N. F., Morozov A. S., Poddubnyi A. P. Teplotekhnika i gazodinamika protsessov okuskovaniya zhelezorudnykh materialov (Firing processes and gas dynamics of agglomeration of iron ore materials). Kiev: Naukova Dumka, 1986. pp. 117–120.
5. Portnov A. M., Korovushkin V. V., Yakubovskaya N. Yu. Far Easten Ac. of Sc., Mineralogy. 1987. Vol. 295. No. 1. pp. 196–199.
6. Lyuban A. P. Analiz yavleniy domennogo protsessa (Analysis of phenomena of the bllast furnace process). Moscow: Metallurgizdat, 1962, 472 p.
Language of full-text
russian
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