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OPTIMIZATION OF MAGNETIC-GRAVITY SEPARATION PARAMETERS BASED ON THE STUDIES OF INTERPARTICLE MAGNETIC INTERACTION IN MAGNETICALLY STABILIZED LIQUEFIED LAYER



The possibility of application of magnetic-gravity separation at mining and processing enterprises has been estimated. The main factors obstructing the distribution of this method have been indicated. The relationship between the effect of an external low-intensity magnetic field and an upflow of water on the properties of a ferromagnetic suspension formed from magnetite particles of various grade has been considered. The paper presents the dependence of the concentrate yield and the total iron content in the concentrate on the intensity of magnetic field at different velocities of upflow. The dependence of the change of the enrichment efficiency in a magnetic gravitational separator on the intensity of the magnetic field for the considered upflow velocities has been established. The principal significance has been noted of the relationship between interparticle magnetic interactions and hydrodynamic characteristics in the process of magnetic-gravity separation. The obtained data are proposed to be used in the description of the algorithm for creating an automatic control system of magnetic gravity separation.



: 7
2018
УДК: 622.778.2 : 622.341.1
DOI: 10.25018/0236-1493-2018-7-0-146-152
Authors: Kalyuzhnaya R. V.

Authors' Information:
Kalyuzhnaya R.V., Graduate Student, e-mail: krv@goi.kolasc.net.ru,
Mining Institute of Kola Scientific Centre of Russian Academy of Sciences, 184209, Apatity, Russia.

Key words:
Ferromagnetic suspension, fluidized bed, a magnetic field, upflow, magnetite particles, interparticle magnetic interactions, enrichment efficiency, magnetic-gravity separation.

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