Method for the sorting of excavated ore and a sorting line...

Details Method for the sorting of excavated ore and a sorting line... Method for the sorting of excavated ore and a sorting line...

B - Operations, Transporting

02

C

241/142, 241/27,

B02C 23/08 (2006.01) B07C 5/34 (2006.01) B07C 5/346 (2006.01) C22B 1/00 (2006.01)

Patent

CA 1131187

ABSTRACT OF THE DISCLOSURE Excavated ore or similar material is sorted at the stage when it is still in blocks in order to remove gangue material and, thus, to avoid further processing of such material. Pieces or rocks of the material are analyzed individually according to the capture-gamma method as regards at least one element con- tained in the pieces, and sorting is performed mechanically subsequently to the analysis. The analyser may be positioned immediately after a first crusher in the sorting line and it may comprise essentially a neutron source and a gamma-radiation detector positioned on the opposite side of a vertical pipe through which the pieces fall.

331288

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