Experience in the development of magnetic gravity separation at enterprises in Russia and CIS countries to improve the quality of iron ore raw materials

DOI: https://doi.org/10.30686/1609-9192-2023-3-122-128
Читать на русскоя языкеA.S. Opalev, A.A. Cherezov
Mining Institute Kola Science Centre of the Russian Academy of Sciences, Apatity, Russian Federation
Russian Mining Industry №3 / 2023 р. 122-128

Abstract: The paper analyzes the tasks of producing high-quality iron ore concentrates suitable for nonblast-furnace metallurgy and the challenges of processing magnetite ores with the current technological level of dressing equipment and technologies. One of the best methods to improve the quality and the grade of iron ore raw materials is the use of magnetic gravity separation in the technological process, which allows selective separation of the liberated magnetite particles from their aggregates in processing of undersize products of fine vibrating screening. This trend is implemented in the innovative magnetite ore processing technology that uses the principle of the staged output of finished concentrate. The technology makes it possible to produce a high-quality concentrate after the first grinding stage. The magnetic gravity separation has undergone industrial validation, has proven its efficiency in practice, and has become widespread at mining and processing plants not only in Russia, but also in the CIS countries. Over 180 MGS-2.0 magnetic gravity separators produced by Russian manufacturers have already been or are being implemented at various Russian and CIS companies. Industrial separators are equipped with modern automation systems providing high technological separation performance, have no rotating parts and are simple in design. The authors continue R&D works on creation of automated control systems for the magnetic gravity separation process based on designing digital models adapted for introduction into the plant’s automated process control systems.

Keywords: iron ores concentration, magnetic gravity separation, high-quality magnetite concentrate, staged output of finished concentrate

For citation: Opalev A.S., Cherezov A.A. Experience in the development of magnetic gravity separation at enterprises in Russia and CIS countries to improve the quality of iron ore raw materials. Russian Mining Industry. 2023;(3):122–128. https://doi.org/10.30686/1609-9192-2023-3-122-128

Article info

Поступила в редакцию: 26.04.2023

Поступила после рецензирования: 23.05.2023

Принята к публикации: 29.05.2023

Information about the authors

Aleksandr S. Opalev – Cand. Sci. (Eng), Deputy Director of Science, Mining Institute Kola Science Centre of the Russian Academy of Sciences, Apatity, Russian Federation; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Artem A. Cherezov – Postgraduate Student, Mining Institute Kola Science Centre of the Russian Academy of Sciences, Apatity, Russian Federation; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

References

1. Roshchin V.E., Roshchin A.V. Electrometallurgy and steel metallurgy. 4th ed. Chelyabinsk: South Ural State University; 2013. 572 p. (In Russ.)

2. Karmazin V.V., Karmazin V.I. Magnetic, electrical and specialized methods of mineral processing. Vol. 1: Magnetic and electrical methods of mineral processing. Moscow: Gornaya kniga; 2012. 672 p. (In Russ.)

3. Pelevin A.E., Sytykh N.A. Iron concentrate stage separation by means of drum magnetic separator with modified separating bath. Obogashchenie Rud. 2016;(4):10–15. (In Russ.) https://doi.org/10.17580/or.2016.04.02

4. Gzogyan S.R. Magnetite and quartz surface condition in ferro-magnetic suspension. Mining Informational and Analytical Bulletin. 2019;(5):189–199. (In Russ.) https://doi.org/10.25018/0236-1493-2019-05-0-189-199

5. Lakshmanan V.I., Roy R., Ramachandran R. (eds). Innovative process development in metallurgical industry. Springer; 2016. https://doi. org/10.1007/978-3-319-21599-0

6. Liming Lu. (ed.). Iron ore: Mineralogy, processing and environmental sustainability. Hardcover; 2015. 666 p.

7. Lebedok A.V., Markworth L. Contemporary iron ore processing: challenges and solutions from ALLMINERAL. Russian Mining Industry. 2022;(3):84–88. (In Russ.) https://doi.org/10.30686/1609-9192-2022-3-84-88

8. Prokopiev S.A., Prokopiev E.S., Emelyanova K.K., Napolskikh S.A. High-quality magnetite–hematite concentrate production by spiral separation. Gornyi Zhurnal. 2021;(6):86–90. (In Russ.) https://doi.org/10.17580/gzh.2021.06.07

9. Pelevin A.E. Ways of efficiency increasing of iron ore raw materials concentration technology. Ferrous Metallurgy. Bulletin of Scientific, Technical and Economic Information. 2019;75(2):137–146. (In Russ.) https://doi.org/10.32339/0135-5910-2019-2-137-146

10. Ismagilov R.I., Kozub A.V., Gridasov I.N., Shelepov E.V. Case Study: Advanced Solutions Applied by JSC Andrei Varichev Mikhailovsky GOK to Improve Ferruginous Quartzite Concentration Performance. Russian Mining Industry. 2020;(4):98–103. (In Russ.) https://doi.org/10.30686/1609-9192-2020-4-98-103

11. Pelevin A.E., Sytykh N.A. Efficiency of screens and hydrocyclones in closed-cycle grinding of titanomagnetite ore. Mining Informational and Analytical Bulletin. 2022;(5):154–166. (In Russ.) https://doi.org/10.25018/0236_1493_2022_5_0_154

12. Nemykin S.A., Kopanev S.N., Mezentseva E.V., Okunev S.M. Iron concentrate production with the increased content of useful component. Gornyi Zhurnal. 2017;(5):27–31. (In Russ.) https://doi.org/10.17580/gzh.2017.05.05

13. Villalobos S. Vertimill as the definitive step before concentration. Procemin GEOMET 2018. Available at: https://www.researchgate.net/publication/332275239

14. Gzogyan T.N. Theoretical and experimental studies on production of high grade concentrates. Mining Informational and Analytical Bulletin. 2010;(4):389–393. (In Russ.) Available at: https://giab-online.ru/files/Data/2010/4/Gzogyan_4_2010.pdf

15. Zhang X., Gu X., Han Y., Parra-Álvarez N., Claremboux V., Kawatra S.K. Flotation of Iron Ores: A Review. Mineral Processing and Extractive Metallurgy Review. 2021;42(3):184–212. https://doi.org/10.1080/08827508.2019.1689494

16. Oleinik T.A., Sklyar L.V. Specific features of iron ore flotation. Obogashchenie Poleznykh Iskopaemykh. 2017;(67):88–100. (In Russ.)

17. Opalev A.S., Scherbakov A.V. Development and implementation of energy saving technology of beneficiation of ferruginous quartzites in the JSC “Olkon”. Transactions of the Kola Science Centre. 2015;(3):176–184. (In Russ.)

18. Opalev A.S., Biryukov V.V. Burenina I.V. The mechanism for the selective separation of magnetite products in magnetic stabilize fluidized bed gravity separator. Nauchnyi Vestnik Moskovskogo Gosudarstvennogo Gornogo Universiteta. 2013;(3):37–48. (In Russ.) Available at: https://pandia.ru/text/78/056/16181.php

19. Bazhenov I. N., Basov O.O. Method of induction control of iron weight fraction in magnetite ore. Journal of Mining Institute. 2018;230:123–130. (In Russ.) https://doi.org/10.25515/pmi.2018.2.123

20. Grinenko V.I., Opalev A.S., Maevsky P.V., Karpov I.V. Improvement of iron ore concentrate quality by gravity and magnetic separation at SSGPO JSC. Gornyi Zhurnal. 2021;(10):81–86. (In Russ.) https://doi.org/10.17580/gzh.2021.10.10