SU933114A1 - Electrodynamic separating method - Google Patents

Description

(5) METHOD OF ELECTRODYNAMIC SEPARATION

The invention relates to the field of mineral processing, in particular, the separation of materials according to electrical conductivity and density. A known method of separating non-magnetic materials by electrical conductivity, based on the interaction of an alternating non-uniform magnetic field and eddy currents of electrically conductive particles 1. A disadvantage of the known method is the low e (1X}) separation efficiency of electrically conductive particles having various shapes. The reduction in e (M) of the separation efficiency of particles of different ({yurm occurs due to their arbitrary orientation, as a result of which some electrically conductive particles at the moment of entering the separation zone turn out to be developed along the magnetic lines of force. The eddy currents of such particles are much smaller across magnetic field lines, since the areas of particles penetrated by the magnetic flux increase. The aim of the invention is to increase the efficiency of the separation process by pre-orientation of the electrical This is achieved by exposing a material to a homogeneous alternating magnetic field. In the separation zone, the particles are turned across a magnetic field lines of a non-uniform field. At the same time, all electrically conductive particles are in the same separation conditions, i.e., the separation efficiency The method is carried out as follows: A mixture of particles is subjected to a variable uniform magnetic field before separation. Under the influence of the floor, electrically conductive particles of the mixture are induced by vortex

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currents, as a result of the interaction by a magnetic field, about t l and emitting eddy currents of the electrically conductive part of the fact that, in order to increase the efficiency and the floor, the electromagnetic efficiency of the separation process occurs in an instant, which unfolds the particles along the pre-orientation

magnetic field lines floor. In the further electrically conductive particles, at the maternity, the mixture of particles is subjected to a rial before separation, which are subjected to electrodynamic separation. homogeneous variable magnetic formula of the invention.

The method of electrodynamic separation is taken into account during the experimentation, which consists in the impact of 1. US Patent No. 1829S65, a non-uniform material variable CL 209-212, published 1931 (prototype).

 Information sources.

Claims (1)

Claim The method of electrodynamic separation, which consists in exposing the material to inhomogeneous variables 14 4 by a magnetic field, which is explained by the fact that, in order to increase the efficiency of the separation process due to the preliminary orientation of the electrically conductive particles, a uniform alternating magnetic field is applied to the material before separation. Sources of information,> taken into account during the experiment 1. US patent No. 1829565, CL 209-212, published 1931 (prototype).