METHOD OF SEPARATION OF PARTICLES OF GROUND ROCK SAMPLE AND POLARIZATION SEPARATOR FOR ITS IMPLEMENTATION Russian patent published in 2017 - IPC B03C7/02 

FIELD: mining engineering.

SUBSTANCE: separation method is based on the differences in particle responses to the applied electrical field supplied from the source to the electrodes formed by alternating conductive bands of different polarity located between the two dielectric substrates, one of which attracts the polarizable rock particles that separate after the voltage is cut off. To isolate a plurality of sample fractions, a constant polarizing electrical field of a high potential gradient is used, adjustable in magnitude, from a lower value to a larger one by changing the high voltage supplied by the source to said electrodes. The separator contains a system of electrodes, charged by opposite poles by the voltage source, in the form of two branches of interpenetrating, non-intersecting conducting alternating bands forming a flat lattice located between immobile dielectric substrates, one of which attracts polarizable rock particles. Each of the branches is connected to the opposite pole of an adjustable constant high voltage source that is included in the circuit containing the voltage regulator, the generator, the voltage multiplier and its meter.

EFFECT: more detailed separation of conductive and non-conductive rock particles, simplification of separation of rock particles, prepared for chemical analysis in laboratory conditions, is provided.

6 cl, 3 dwg