Magnetic separation method
AssigneeGekko Systems Pty Ltd
InventorAlexander Hamilton Lewis-Gray
Life of this patent
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Abstract
A magnetic separator for a mineral feed comprising, a rotatable drum having an attraction surface, an inlet for receiving a stream of the mineral feed and directing it past the rotating drum, means for generating a magnetic field to attract magnetic components in the feed to the attraction surface, a first zone for take off of non-magnetic components of the mineral feed, and a second zone for take off of the magnetic components, wherein the magnetic field generating means are adapted to subject the magnetic components to at least one reversal of polarity of the magnetic field as the drum rotates.
Claims12
A magnetic separator for a mineral feed comprising,
- a cover,
- a rotatable drum having an attraction surface,
- an inlet for receiving a stream of the mineral feed and directing the mineral feed past the rotatable drum,
- means for generating a magnetic field to attract magnetic components in the mineral feed to the attraction surface,
- a sizing screen mounted on the cover and arranged to receive slurry falling off the rotatable drum,
- a primary launder arranged to receive fines passing through the sizing screen,
- a secondary launder arranged to receive a coarse component not passing through the sizing screen, and
- a tertiary launder arranged to receive magnetic material dropping from the rotatable drum
- wherein the magnetic field generating means are adapted to subject the magnetic components to at least one reversal of polarity of the magnetic field as the rotatable drum rotates and the cover is moveable toward and away from the rotatable drum.
A magnetic separator for a mineral feed comprising,
- a housing having a frame, a rotatable drum within the housing and having an attraction surface, and a cover connected to the frame and moveable toward and away from the rotatable drum,
- an inlet in the housing for receiving a stream of the mineral feed and directing the mineral feed past the rotatable drum,
- means for generating a magnetic field to attract magnetic components in the mineral feed to the attraction surface,
- a sizing screen mounted on the cover and arranged to receive slurry falling off the rotatable drum when the cover is moved toward the rotatable drum,
- a primary launder arranged to receive fines passing through the sizing screen,
- a secondary launder arranged to receive a coarse component not passing through the sizing screen, and
- a tertiary launder arranged to receive magnetic material dropping from the rotatable drum
- wherein the magnetic field generating means are adapted to subject the magnetic components to at least one reversal of polarity of the magnetic field as the rotatable drum rotates.
Dependencies are inferred from the claim text.