Alternating current magnetic separator
OwnerJohn R. McGaainventor
Life of this patent
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Abstract
A magnetic ore purification system for enriching magnetic ore concentration in a feed material. The system includes an elutriator and at least one alternating current magnet. The system may also optionally have a device, which may be an ultrasonic transducer, for introducing vibrational energy into the elutriator, and a feedback control system. The elutriator has a feed port for introducing the feed material and an enriched port for collecting an enriched material having a magnetic ore concentration that is greater than the feed material. As the feed material passes between the feed port and the enriched port, the feed material is subjected to a low strength magnetic field generated by the alternating current magnet. The feed material may also be subjected to vibrational energy.
Claims37
A magnetic ore purification system for enriching a concentration of magnetic ore in a feed material, the system comprising:
- an elutriator having a feed material port for introducing a feed material into the elutriator and an enriched material port for collecting an enriched material from the elutriator, wherein the enriched material has a magnetic ore concentration that is greater than the concentration of magnetic ore in the feed material;
- and
- at least a first alternating current magnet for producing at least one low strength magnetic field in the elutriator;
- and
- wherein the system is capable of producing enriched material with a magnetic ore concentration of greater than about 95 percent by weight.
A magnetic ore enrichment system for enriching magnetic ore concentration in a feed material, the system comprising:
- an elutriator having a feed material port for introducing a feed material into the elutriator and an enriched material port for collecting am enriched material from the elutriator, wherein the magnetic ore concentration of the enriched material is greater than the magnetic ore concentration of the feed material;
- an alternating current magnet for generating a low strength magnetic field within the elutriator;
- and
- a device for introducing vibrational energy into the elutriator.
A magnetic ore purification system for enriching a concentration of magnetic ore in a feed material, the system comprising:
- an elutriator having a feed material port for introducing a feed material into the elutriator, an enriched material port for collecting can enriched material from the elutriator, a water feed port for introducing water into the elutriator, a waste removal port for removing water and waste material from the elutriator, wherein the feed material port is opposite the water feed port so that the feed material and water flow through the elutriator in substantially countercurrent directions, and wherein the enriched material has a magnetic ore concentration that is greater than the concentration of magnetic ore and feed material;
- two alternating current magnets disposed in spaced axial arrangement on the elutriator for producing low strength magnetic fields in the elutriator;
- a process control system that includes an amperage sensor, at least one control device for regulating flow of material through the elutriator, and feedback control between the amperage sensor and the control device;
- and
- wherein the system is capable of producing enriched material with a magnetic ore concentration of greater than about 95 percent by weight.
A magnetic ore enrichment process comprising:
- introducing a feed material into an elutriator, wherein the feed material contains a first magnetic ore concentration;
- introducing water into the elutriator so that the water mixes with the feed material and forms a slurry;
- applying a first low strength magnetic field to the slurry;
- subjecting the slurry to ultrasonic energy;
- and
- collecting an enriched material having a second magnetic ore concentration that is greater than the first magnetic ore concentration.
A magnetic ore enrichment process comprising:
- introducing a feed material into an elutriator, wherein the feed material contains a first concentration of magnetic ore;
- introducing water into the elutriator so that the water mixes with the feed material and forms a slurry;
- applying a first low strength magnetic field to the slurry with an alternating current magnet;
- and
- collecting an enriched material from the elutriator, wherein the enriched portion has a magnetic ore concentration of greater than about 95 percent by weight.
Dependencies are inferred from the claim text.