Method and device for separating primary ore containing rare earths
AssigneeSiemens Aktiengesellschaft
InventorsWERNER HARTMANN, KILIAN NEUBERT, SONJA WOLFRUM, HERMANN WOTRUBA
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Abstract
The invention relates to a method and devices for separating primary ore into dead rock and at least one type of rock which contains at least one valuable mineral, the at least one valuable mineral comprising at least one rare-earth mineral. A sensor-controlled pre-framing method, which is based on the identification and classification of individual rock particles, is used.
Claims19
-12. (canceled)
A method for separating primary ore containing rare earths into dead rock and at least one type of rock which is enriched with at least one valuable mineral which contains at least one rare earth mineral, said method comprising:
- comminuting the primary ore into rock particles having a particle size in a range from >1 mm to 300 mm and composed at least mainly of dead rock and also valuable mineral particles composed at least mainly of rock which is enriched with a valuable mineral;
- separating out the rock particles;
- feeding the separated-out rock particles to at least one measuring unit;
- determining by the at least one measuring unit at least two different rock properties of each of the rock particles, with at least one of the two different rock properties being a secondary rock property of the rock particle;
- assigning the at least one secondary rock property to the rock particle;
- classifying each rock particle as a function of its rock properties as a dead rock particle or valuable mineral particle;
- and
- separating the dead rock particles from the valuable mineral particles.
A sorting device for separating rock particles composed of primary ore into dead rock and at least one type of rock which is enriched with at least one valuable mineral, wherein the at least one valuable mineral comprises at least one rare earth mineral, and wherein the rock particles comprise dead rock particles which are at least mainly composed of dead rock, and also contain valuable mineral particles at least mainly composed of rock which is enriched with a valuable mineral, said sorting device comprising:
- at least one separating-out unit configured to separate out the rock particles;
- at least one measuring unit configured to analyze at least one secondary rock property of each rock particle and for assigning the at least one rock property to the rock particle, said measuring unit comprising at least two sensor units for analyzing different rock properties of a rock particle;
- at least one evaluation unit configured to classify each rock particle as a function of its rock properties as a dead rock particle or a valuable mineral particle;
- and
- at least one separating unit configured to separate the dead rock particles from the valuable mineral particles.
A system for separating primary ore into dead rock and at least one rock which is enriched with at least one valuable mineral, wherein the at least one valuable mineral comprises at least one rare earth mineral, said system comprising:
- at least one crusher configured to comminute the primary ore into rock particles;
- at least one sorting device including at least one separating-out unit configured to separate out the rock particles, at least one measuring unit configured to analyze at least one secondary rock property of each rock particle and for assigning the at least one rock property to the rock particle, said measuring unit comprising at least two sensor units for analyzing different rock properties of a rock particle, at least one evaluation unit configured to classify each rock particle as a function of its rock properties as a dead rock particle or a valuable mineral particle, and at least one separating unit configured to separate the dead rock particles from the valuable mineral particles;
- at least one transfer region for transferring the rock particles to the at least one sorting device,
- said at least one separating-out unit being arranged in the at least one transfer region and/or in a region of the at least one sorting device.
Dependencies are inferred from the claim text.