Method and apparatus for sorting objects of ore by monitoring re

Details Method and apparatus for sorting objects of ore by monitoring re Method and apparatus for sorting objects of ore by monitoring re

1984-03-23

1986-07-15

Reeves, Robert B.

Classifying, separating, and assorting solids

Sorting special items, and certain methods and apparatus for...

Condition responsive means controls separating means

209576, 209579, 209585, 356446, 356448, B07C 5342

Patent

active

046001050

ABSTRACT:
A method of ore sorting includes distinguishing ore objects or ore containing objects by the light reflected from a laser beam arranged to scan across each of the objects to be sorted. Where the surface of the object is transmitting to the light a halo is produced by certain objects caused by internal scattered reflections of the light. By monitoring the occurrence or degree of occurrences of halos clean distinction of respective objects can be made. In a particular application, the identification of the presence of quartz pebbles in rock specimens can be used for detecting and sorting gold containing objects.

REFERENCES:
patent: 3747755 (1973-07-01), Senturia et al.
patent: 3789983 (1974-02-01), Senesky
patent: 4122952 (1978-10-01), Richards
patent: 4226541 (1980-10-01), Tisue

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