| Authors |
Sedinkina N.. candidate of technical sciences, magnetyt@mail.ruGmyzina N.. candidate of technical sciences, gmnat1307@mail.ruDegodya E.. candidate of technical sciences, associate professor,, magur@mail.ruShavakyleva O.. candidate of technical sciences, associate professor, assistant professor, shavakylevao@yandex.ru |
| Annotation |
The Urals is one of the unique iron ore provinces of the world, including all the variety of iron ores. Siderite ores are represented by the Bakal group of deposits, in which siderite in mineralogical terms is not a chemically pure iron carbonate, but has an isomorphic admixture of magnesium and calcium, forming sideroplesite and pistomesite. The main iron ore mineral of the siderite ore of this deposit is an isomorphic mixture of iron, magnesium and manganese carbonates, which occur in different quantitative ratios. A scheme for ore dressing is proposed, which includes crushing to a size of 10-0 mm and dry magnetic separation in a suspended state at a magnetic field strength of 52 k/m. The study of dry magnetic separation of siderite ore was carried out on a suspended separator with a constant magnetic field and on an electromagnetic separator 138T-SEM.
The resulting magnetic fraction is sent to the baking, subsequent crushing to a size of 2-0 mm and dry magnetic separation in the suspended state. To increase the mass fraction of iron and reduce the mass fraction of magnesium oxide, the magnetic fraction is sent for grinding and wet magnetic separation. The results of the experiments have showed that the enrichment using high-intensity dry magnetic separation of siderite ore from various sections of the deposit, the mass fraction of MgO decreased from 9.4-12.3% to 8.0-10.1%, and the mass fraction of iron increased from 28.8-33.4% to 31.4-40.8%. As a result, a product with a mass fraction of iron 59.3-60.1% and magnesium oxide 10.0-11.3% has been obtained. The developed enrichment technology allows us to obtain conditioned raw materials, which can serve as a promising raw material for PJSC Magnitogorsk Iron and Steel Works (PJSC MMK) |
| Article information |
Degodya Е., Sedinkina N., Shavakuleva О., Gmyzina N. Improvement of the technology for processing siderite ore from the Bakal deposit // Transbaikal State University Journal, 2021, vol. 27, no. 4, pp. 6–12. DOI: 10.21209/2227-9245-2021-27-4-6-12. |
| References |
1. Klochkovsky S. P., Smirnov A. N., Savchenko I. A. Vestnik Magnitogorskogo gosudarstvennogo tehnicheskogo universiteta im. G. I. Nosova (Bulletin of the Magnitogorsk State Technical University named after G. I. Nosov), 2015, № 1, рр. 26‒31.
2. Kostina Z. I., Krylova S. A., Ponurko I. V. Mezhdunarodny zhurnal prikladnyh i fundamentalnyh issledovaniy (International Journal of Applied and Fundamental Research, 2015, № 11, part 4, рр. 580‒582.
3. Krylova S. A., Sysoev V. I., Alekseev D. I. Vestnik Yuzhno-Uralskogo gosudarstvennogo universiteta. Seriya “Metallurgiya” (Bulletin of the South Ural State University. Series “Metallurgy”, 2017, vol. 17, №. 2, pp. 13‒21.
4. Pelevin A. E. Magnitnye metody obogashcheniya (Magnetic enrichment methods). Yekaterinburg: UGGU, 2018, 296 p.
5. Pelevin A. E. Obogashchenie rud (Ore dressing), 2019, no. 6, рр. 19‒24.
6. Smirnov A. N., Velikanov V. S., Grishin I. A., Masalimov A.V. Gornaya promyshlennost (Mining industry), 2018, № 6, рр. 83‒85.
7. Yuryev, B. P. Tehnologicheskie i teplotehnicheskie osnovy podgotovki sideritovyh rud k metallurgicheskim peredelam: monografiya (Technological and heat engineering bases of siderite ores’ preparation for metallurgical processing: monograph). Yekaterinburg: Day of RA, 2016, 428 p.
8. Yuryev B. P., Kostousova T. I. Izvestiya vuzov. Chernaya metallurgiya (Proceedings of universities. Ferrous metallurgy), 1999, №. 3, рр. 17‒23.
9. Yuryev B. P., Melamud S. G., Spirin N. A., Shatsillo V. V. Tehnologicheskie i teplotehnicheskie osnovy podgotovki sideritovyh rud k metallurgicheskim peredelam: monografiya (Technological and heat engineering bases of preparation of siderite ores for metallurgical processing: monograph). Yekaterinburg: LLC AMK “Day of RA”, 2016. 428 p.
10. Yuryev B. P., Sheshukov O. Yu., Dudko V. A. Chernaya metallurgiya (Ferrous Metallurgy), 2019, vol. 75, №. 8, рр. 923‒930.
11. Smirnov A. N., S.P Klochkovsky, Krylova S. A., Sysoev I. V. Journal of Chemical Technology and Metallurgy (Journal of Chemical Technology and Metallurgy), 2019, vol. 54, № 2, рр. 286‒291.
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