EFFECTIVE WAY TO SEPARATE HIGH-GRADE ORES WHEN MINING

EFFECTIVE WAY TO SEPARATE HIGH-GRADE ORES WHEN MINING
using ore-controlling stations (OCS)

Technology of large-volume sorting of ores

The technique and equipment for express X-ray-radiomentric testing and sorting of ore (OCS) in transport tanks ((trolleys, backets, skips, motor lorries) and on a conveyor tape is offered.

The concurrent remote definition of up to 4 elements, having nuclear number above 33, is carried out. The lower limits of detection are 0.05 of % for Mo-B-elements group and 0.1 % for As-Nb-elements group. The accuracy of analysis in ore sets is not worse than 10 %.

The opportunity of sorting under the given boundary contents of any determined component or equivalent contents up to four components is provided, in view of their economic importance. The productivity of analysis is not lower than 1000 t per day..

As a result:

Barren rocks and sub-conditional are moving away in wastes;
Ores, containing harmful impurities, can be allocated in special product;
High-grade ores are divided into grades for the subsequent processing or averaging.

The equipment was put to inter-departmental laboratory tests.

The economic efficiency of ore sorting by application of OCS is confirmed by long-term application when mining of uranium and tin.For example, the application of OCS for sorting of rare metal ores of Tomtor deposit raises cost of final commodity products by 20 percent at the expense of that sub-conditional low-grade ores move away in waste products.

Forms of co-operation:

Pilot trials with accordance of a technique and equipment (OCS);

Drawing up the technical project on the equipment OCS to the manufacturer;

Author’s supervision at the stage of development of deposits.

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