Classifying – separating – and assorting solids – Magnetic
Patent
1979-02-02
1980-12-09
Hill, Ralph J.
Classifying, separating, and assorting solids
Magnetic
198381, 209636, B03C 126
Patent
active
042383234
ABSTRACT:
Electrodynamic separation of nonmagnetic free-flowing materials is accomplished by feeding the flow of a material into a region of maximum intensity of a variable nonuniform magnetic field for inducing maximum eddy currents in electrically conducting particles of the material being separated and producing maximum electromagnetic forces which deflect the electrically conducting particles from the direction of feed of the material being separated.
The variable nonuniform magnetic field is generated by an electromagnet having a closed magnetic core with a magnetic air gap defined by pole pieces. The electromagnet pole pieces are symmetrically divergent from the pole axes in a plane substantially perpendicular to the direction of feed of the material being separated.
REFERENCES:
patent: 731038 (1903-06-01), Gates
patent: 1317992 (1919-10-01), Sekinger
patent: 3608718 (1971-09-01), Aubrey et al.
patent: 3645377 (1972-02-01), Zheigur et al.
patent: 3651439 (1972-03-01), Ioffe et al.
Ioffe Benyamin A.
Kalnyn Robert K.
Krymtsov Anatoly V.
Lapitsky Viktor N.
Podolskaya, executor by Natalia V.
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