Babii K.V., Cholyshkina V.V., Usov O.O., Kurilov V.S. Magnetic hydroseparation instead of desliming for the conditions of northern gok
- Details
- Parent Category: Geo-Technical Mechanics, 2022
- Category: Geo-Technical Mechanics, 2022, № 161
Geoteh. meh. 2022, 161, 62-67
https://doi.org/10.15407/geotm2022.161.062
MAGNETIC HYDROSEPARATION INSTEAD OF DESLIMING FOR THE CONDITIONS OF NORTHERN GOK
1Babii K.V., 1Cholyshkina V.V., 1Kurilov V.S.
1Institute of Geotechnical Mechanics named by N. Poljakov of The National Academy of Science of Ukraine
UDC 622.7:622.341.1
Language: English
Abstract. The magnetic technology of iron ore dressing, widely used in Krivbass, in contrast to factories abroad, in addition to magnetic separation, has another processing operation – desliming. The MD-5 and MD-9 deslimers used are installed before the magnetic separation of stages 2 and 3 and ensure the removal of dump tails from the discharge of hydrocyclones. According to the existing technology, about 60% of the waste mass is removed from the ore, of which the main share is on magnetic separators and 7-10% on deslimers. Technologically, the tailings of deslimers always cleaner in terms of iron content than magnetic separation. The task was to increase the output of tails on desliming. This will allow you to get dump tails with less iron loss. This task was solved by creating new devices based on the existing MD-5 and MD-9 deslimers - magnetic hydraulic separators MGS-5 and MGS-9. To do this, existing deslimers were equipped with special structural elements and permanent magnet magnetic systems, and then switched to magnetic hydroseparation mode. The technology using magnetic hydraulic separators MGS-5 and MGS-9 passed industrial tests in the period 1995-2007. Today it is used in all technological sections of the processing plants of FERREXPO POLTAVA MINING COMPANY and Joint Stock Company LEBEDINSKY MINING AND PROCESSING PLANT. The article informatively describes the industrial experience of using MGS-5 and MGS-9 at the Poltavsky and Lebedinsky GOKs. Based on the existing experience of industrial operation of the magnetic hydroseparation of the MGS, the predicted results for the technology using the MGS at the 1st and 2nd stages of desliming during the modernization of existing deslimers at the processing plant of Northern GOK are determined. As a result of the use of MGS at Northern GOK, it is expected to increase the yield of concentrate at the planned productivity of sections at the planned quality of concentrate by reducing the iron content in the tailings.
Keywords: deslimers, modernization, iron ore concentrate.
REFERENCES:
1. Bogdanov, O.S., Olevsky, V.A., et al. (1972), Spravochnik po Obogascheniju rud [Handbook for ore dressing], Nedra, Moskva, Russia, Vol.1, 447 p.
2. Nadutyy, V.P., Sukharev, V.V. and Chelyshkina, V.V. (2014), “Theoretical evaluation of the classification mechanism for thin magnetically susceptible materials”,Vistnik of the National Technical University “Kharkiv Polytechnic Institute”, no. 53(1095), pp. 75-84.
3. Nadutyy, V.P., Usov, O.A. and Chelyshkina, V.V., Institute of Geotechnical Mechanics under NAS of Ukraine (2010), Sposib mokroho mahnitnoho zbahachennya zaliznykh rud [Method of wet magnetic dressing of iron ores], State Register of Patents of Ukraine, Kiev, UA, Pat. № UA52122.
About authors:
Babii Kateryna Vasylivna, Doctor of Technical Sciences (D.Sc.), Deputy Director for Scientific Affairs, Institute of Geotechnical Mechanics named by N. Poljakov of NАS of Ukraine (IGTM NAS of Ukraine), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.
Cholyshkina Valentyna Vasylivna, Candidate of Technical Sciences (Ph.D.), Senior Researcher of Department of Mechanics of Mineral Processing Machines and Processes, Institute of Geotechnical Mechanics named by N. Poljakov of NАS of Ukraine (IGTM NAS of Ukraine), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.
Usov Oleh Oleksandrovych, Candidate of Technical Sciences (Ph.D.), Senior Researcher of Department of Dynamic Management Manifestations of Rock Pressure, Institute of Geotechnical Mechanics named by N. Poljakov of NАS of Ukraine (IGTM NAS of Ukraine), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.
Kurilov Vladyslav Serhiiovych, Engineer of Department of Mechanics of Mineral Processing Machines and Processes, Institute of Geotechnical Mechanics named by N. Poljakov of NАS of Ukraine (IGTM NAS of Ukraine), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.
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