Classifying – separating – and assorting solids – Magnetic – Paramagnetic
Patent
1982-01-25
1984-05-29
Prunner, Kathleen J.
Classifying, separating, and assorting solids
Magnetic
Paramagnetic
209225, 209215, B03C 118, B03C 130
Patent
active
044513607
ABSTRACT:
An apparatus for removing adherent magnetically attracted particles from the surface of the magnetic head pulley of the conveyor belt used in a dry magnetic separator without disrupting the magnetic separation process. An array of magnetically soft iron tines of several sizes is provided to be moved into and out of close proximity with and substantially normal to the magnetic head pulley surface. When in proximity to the magnetic head pulley, the soft iron tines are induced with a magnetic force and because of their shape, a magnetic field gradient is formed in the direction of the tines having a force sufficient to attract the particles from the head pulley to the tines. When the tines are moved away from proximity with the head pulley, they lose most of their induced magnetism and the attracted particles fall into a discharge chute or collection box.
REFERENCES:
patent: 912363 (1909-02-01), Charlton
patent: 1177981 (1916-04-01), Wright
patent: 1630987 (1927-05-01), Turner
patent: 2253362 (1941-08-01), Broekhuysen
patent: 2268128 (1941-12-01), Reeves
patent: 2673647 (1954-03-01), Haley et al.
Dickos George D.
Prunner Kathleen J.
United States Steel Corporation
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