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US 2026/0273543 A1Published application
Wet magnetic roll separator systems and methods of producing high-pure iron ore concentrates
OwnerDehua ZHUinventor
Life of this patent
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Abstract
A wet magnetic roll separator and methods of separating iron ore concentrates by washing the magnetic products adhered on a conveyor belt around a magnetic roll and an idle roll, wherein the idle roll is positioned at an elevation above the magnetic roll.
Claims20
A wet magnetic roll separator for isolating magnetic products from an iron ore composition, wherein the wet magnetic roll separator comprises:
- a conveyor belt extending between a magnetic roll and an idle roll, wherein the magnetic roll comprises at least one permanent magnet, wherein magnetic poles of the magnetic roll are oriented axially with respect to the magnetic roll, wherein the permanent magnet comprises neodymium;
- wherein the idle roll is positioned at an elevation above the magnetic roll, such that the conveyor belt is disposed at a non-horizontal angle, wherein the angle of the conveyor belt is from 10 degrees to 60 degrees above horizontal;
- a feeding device positioned above the conveyor belt for depositing a slurry comprising the iron ore composition onto a portion of the conveyor belt adjacent the magnetic roll;
- a washing device positioned above the magnetic roll, wherein the washing device includes a nozzle with at least one tube with a plurality of small holes for discharging a washing solution onto the slurry deposited on the conveyor belt by the feeding device;
- a magnetic product discharge device positioned below the idle roll, wherein the magnetic product discharge device includes a magnetic product discharge device nozzle for discharging water to the surface of the conveyor belt under the idle roll;
- a magnetic product hopper for collecting the magnetic products discharged from the magnetic product discharge device, wherein the magnetic product hopper is positioned below the magnetic product discharge device nozzle;
- a non-magnetic product discharge device positioned below the magnetic roll, wherein the non-magnetic product discharge device includes a non-magnetic product discharge device nozzle for discharging water to the surface of the conveyor belt under the magnetic roll;
- and
- a non-magnetic product hopper for collecting the non-magnetic products discharged from the non-magnetic product discharge device, wherein the non-magnetic product hopper is positioned below the non-magnetic product discharge device nozzle, wherein the non-magnetic product discharge device and the non-magnetic product hopper define a non-magnetic product discharge path separate from the feeding device.
6 more elements
A method for isolating magnetic products from an iron ore composition, wherein the method comprises:
- providing a wet magnetic roll separator comprising a conveyor belt in contact with a magnetic roll and an idle roll, wherein the magnetic roll is powered by a motor, wherein a top portion of the conveyor belt moves from the magnetic roll to the idle roll;
- wherein the magnetic roll comprises at least one permanent magnet, wherein magnetic poles of the magnetic roll are oriented axially with respect to the magnetic roll, wherein the permanent magnet comprises neodymium;
- wherein the idle roll is positioned at an elevation above the magnetic roll, such that the conveyor belt is disposed at a non-horizontal angle, wherein the angle of the conveyor belt is from 10 degrees to 60 degrees above horizontal;
- depositing a slurry comprising the iron ore composition onto a portion of the conveyor belt in contact with the magnetic roll, wherein the iron ore composition comprises magnetic products and non-magnetic products;
- washing the slurry on the conveyor belt, wherein the washing removes the non-magnetic products from the conveyor belt as the magnetic particles remain on the conveyor belt and move towards the idle roll;
- removing the magnetic products from the conveyor belt using a magnetic product discharge device positioned below the conveyor belt and the idle roll, wherein the magnetic product discharge device discharges water from a magnetic product discharge device nozzle onto the surface of the conveyor belt under the idle roll;
- collecting the magnetic products removed from the conveyor belt into a magnetic product hopper, wherein the magnetic product hopper is positioned below the magnetic product discharge device nozzle, wherein the isolated magnetic products have an iron oxide content of greater than 97.00%;
- removing the non-magnetic products from the conveyor belt using a non-magnetic product discharge device positioned below the conveyor belt and the magnetic roll, wherein the non-magnetic product discharge device discharges water from a non-magnetic product discharge device nozzle onto the surface of the conveyor belt under the magnetic roll;
- and
- collecting the non-magnetic products removed from the conveyor belt directly into a non-magnetic product hopper, wherein the non-magnetic product hopper is positioned below the non-magnetic product discharge device nozzle.
7 more elements
Dependencies are inferred from the claim text.