Classifying – separating – and assorting solids – Plural – diverse separating operations – Magnetic and stratifying
Patent
1992-07-24
1993-03-16
Hajec, Donald T.
Classifying, separating, and assorting solids
Plural, diverse separating operations
Magnetic and stratifying
209478, B03C 130
Patent
active
051936879
ABSTRACT:
A gravity-magnetic separator (10) for concentrating magnetic materials (28), particularly iron, is disclosed. The preferred separator is a cast-iron Humphreys spiral retrofitted with powerful rare earth magnets (22) beneath its separating surface (14), the magnets being sufficiently strong to overcome the shielding effect of the cast-iron spiral and induce a magnetic field at the separating surface of about 60 gauss to about 120 gauss. The resulting gravity-magnetic separator enhances the recovery of iron in a commercially significant way.
REFERENCES:
patent: 581032 (1897-04-01), Pike
patent: 986389 (1911-03-01), Herr
patent: 1071839 (1913-09-01), Weatherby
patent: 1885717 (1932-11-01), Harris
patent: 4565624 (1986-01-01), Martinez
patent: 4717469 (1988-01-01), Pirc
patent: 4902428 (1990-02-01), Cohen
"The Gravity-Magnetic Separator" by E. Martinez, from Advances in Mineral Processing, Arbiter Symposium, New Orleans, La., Society of Mining Engineers, Mar. 1986, edited by P. Somasundaran.
Martinez, E. & D. E. Spiller, "The Spiral Gravity-Magnetic Separator", Dec. 1988.
"Gravity-Magnetic Separation Performance Study of Titanium and Iron Ores," Hazen Research, Feb. 23, 1989.
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