Process and apparatus for separating particles of different magn

Details Process and apparatus for separating particles of different magn Process and apparatus for separating particles of different magn

1997-09-16

2000-05-16

Ellis, Christopher P.

Classifying, separating, and assorting solids

Magnetic

Paramagnetic

209228, 209 11, B03C 100

Patent

active

060623934

ABSTRACT:
A process and an apparatus for separating particles according to the strength of their magnetic susceptibilities includes a mass of loose particles transported on a moving surface over a plurality of long, thin, magnets separated by thin straps of ferromagnetic metal. The magnets are arranged such that the polarities of two adjacent magnets engaging opposite sides of the same ferromagnetic strap are identical. Particles are separated on the moving surface and when that surface passes around a horizontal axis, the particles fall off the surface into selected areas according to the magnetic susceptibilities of the particles. Cooling air flows between the moving surface and magnets to enhance operation and the useful life of the magnets.

REFERENCES:
patent: 3327852 (1967-06-01), Mortsell
patent: 3737822 (1973-06-01), Buus et al.
patent: 4172819 (1979-10-01), Mitchell et al.
patent: 5051177 (1991-09-01), Dauchez
patent: 5636748 (1997-06-01), Arvidson
patent: 5655664 (1997-08-01), Barrett

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