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ArticleName High-effective magnetic hydrocycloning equipment for magnetite ore processing
DOI 10.17580/em.2022.01.10
ArticleAuthor Lavrinenko A. A., Sysa P. A., Agarkov I. I.

Institute of Comprehensive Exploitation of Mineral Resources Russian Academy of Sciences, Moscow, Russia:

Lavrinenko A. A., Head of Laboratory, Doctor of Engineering Sciences,
Sysa P. A., Senior Researcher, Candidate of Engineering Sciences
Agarkov I. I., Post-Graduate Student


A new method and equipment for magnetic hydrocycloning are proposed, which make it possible to extract the magnetic fraction from a polydisperse suspension with a high specific productivity and separation efficiency without preliminary classification by size. An alternating magnetic field source is coaxially superimposed on top of the hydrocyclone so that the magnet-like lines intersect the suspension flow rotating in the cylindrical part of the hydrocyclone. In this case, the gradient of the magnetic field inside the body of the hydrocyclone is directed opposite to the direction of the summed vectors of the centrifugal force and gravitational force, and the magnetic fraction (product) is redirected through a drain tube for the concentrate outlet. It is possible to adjust the operating mode of the magnetic hydrocyclone for adjusting the total area of the outlet holes in the drain tube by moving an insert with slot-like cuts, which changes the overlap area of the holes. The magnetic hydrocyclone is recommended for processing ferruginous quartzite and other types of ores with pronounced magnetic properties. The results of the effective separation of magnetic and nonmagnetic particles at different magnetic field densities are presented, and the dependence of the magnetic fraction recovery on the size of the initial suspension feed is described. A method is proposed for estimating the possibility of extracting magnetic particles at preset parameters, for example, the geometric dimensions of the magnetic hydrocyclones at the varied values of the magnetic field density and particle flow velocity. The formula for the calculation is given, which establishes the equality, when the particle overcomes the internal space of the hydrocyclone and is extracted into the concentrate.

keywords Magnetic hydrocyclone, separation selectivity, magnetic fraction, iron ore beneficiation, magnetic force, centrifugal force, iron content

1. Karamzin V. V., Karamzin V. I. Magnetic, electric and one-purpose method of mineral processing. Moscow : MGGU, 2005. Vol. 1. 669 p.
2. Adewoye A., Mamdud H., Islam S. et al. Improving Separation Efficiency of Particle less than 10 Microns in Hydrocyclone. The 4th World Congress on Momentum, Heat and Mass Transfer: Materials Science 2019 Conference. 2019. DOI: 10.11159/icmfht19.126
3. Awais M., Coelho F., Degri M. et al. Hydrocyclone Separation of Hydrogen Decrepitated NdFeB. Recycling. 2017. Vol. 2(4). DOI: 10.3390/recycling2040022
4. Zhang J., Zha Zh., Che P. et al. Trapping performance improvement of submicron particles in electrostatic cyclone by the applied magnetic field. Article type: Research Article. International Journal of Applied Electromagnetics and Mechanics. 2018. Vol. 57, No. 2. pp. 205–215.
5. Freeman R. J., Rowson N. A., Veasley T. J. et al. The Progress of the Magnetic Hydrocyclone. Magnetic and Electrical Separation. 1993. Vol. 4(3) pp. 139–149.
6. Kosoy G. M., Sapeshko V. V. Motion dynamics of particles in rotation liquid flows. Theoretical framework of the chemical technology. 1980. Vol. 14, No. 3. pp. 452–456.
7. Masyutkin E. P., Avdeev B. A., Zhukov V. A. Application of magnetic hydraulic cyclones for quality increase of service fluids cleaning. Vestnik Mashinostroeniya. 2017. No. 10. pp. 75–80.
8. Masyutkin E. P., Avdeev B. A., Prosvirnin V. I. Research of distribution of the magnetic field intensity in the inertial device of the ship engine oil purification. Vestnik MGTU. 2016. Vol. 19,No. 4 pp. 737–743.
9. Lvov V. V., Aleksandrova T. N. Automated control of hydrocyclone classification. Gornyi Zhurnal. 2017. No. 6. pp. 94–96. DOI: 10.17580/gzh.2016.05.14
10. Lvov V. V., Upraviteleva A. A. Role of magnetic hydrocyclone in oxidized ferruginous quartzite sizing. Proceedings of XXV International Conference on Science and Practice of Ore and Waste Processing. Yekaterinburg : Tails KO, 2020. pp. 175–180.
11. Avdeev B. A. Improvement of marine diesel engine oil scavenging efficiency using magnetic hydrocyclones. Ulyanovsk : Zebra, 2016. 151 p.
12. Lin L., Lixin Zh., XuY. et al. Innovative design and study of an oil-water coupling separation magnetic hydrocyclone. Separation and Purification Technology. 2019. Vol. 213. рр. 389–400.
13. Yang L., Fanxi B., Shuangqing C. et al. Investigating effect of polymer concentrations on separation performance of hydrocyclone by sensitivity analysis. Energy Science and Engineering. 2021. Vol. 9(8). DOI: 10.1002/ese3.884
14. Рremaratne W. A. P. J., Rowson N. A. Development of a magnetic hydrocyclone separation for the recovery of titanium from beach sands. Physical Separation in Science and Engineering. 2003. Vol. 12, No. 4. pp. 215–222.
15. Chen G. Design and analysis of magnetic hydrocyclone. A thesis submitted for the degree of Master of Engineering. Monreal : Department of Mining and Metallurgical Engineering McGill University, 1989. 129 p.
16. Sysa P. A., Lavrinenko A. A., Agarkov I. I. Method and equipment to recover magnetic fraction from suspension flow. Patent RF, No. 2748911. Applied: 09.12.2019. Published: 01.06.2021. Bulletin No. 16.

Full content High-effective magnetic hydrocycloning equipment for magnetite ore processing