Metallurgical apparatus – Means treating solid metal
Patent
1990-02-14
1991-07-23
Rosenberg, Peter D.
Metallurgical apparatus
Means treating solid metal
75712, 209655, B07C 900
Patent
active
050333321
ABSTRACT:
Apparatus for concentrating gold-containing particulate material includes a housing containing an endless conveyor belt the upper stretch of which is inclined in the direction of its movement. An infeed hopper adjacent the upper end of the belt functions to deposit gold-containing particulate material on the upwardly moving upper stretch of the belt, and said stretch is inclined sufficiently to cause the particulate material to move downwardly over the upwardly moving upper stretch in a manner to effectuate classification of the particulate material by gravity separation into a minor fraction of valuable particles of smaller size and heavier specific gravity, including fine and microfine gold particles, and a major fraction of tailings particles of larger size and lighter specific gravity. A plurality of small pockets are spaced apart across the width and along the length of the conveyor belt and are configured to intercept the downwardly moving particulate material and to collect said minor fraction and move said fraction upward and over the upper end of the belt and then downward over the lower stretch of the belt where the pockets are upended and the collected minor fraction falls by gravity to a receiver bucket. The tailings fraction exits the lower end of the upper stretch of the conveyor belt. The particulate material may be deposited on the conveyor belt in a dry state, or it may be deposited as a water slurry.
REFERENCES:
patent: 2101381 (1937-12-01), Appleyard
patent: 3394806 (1968-07-01), Vaillette
Riley Riffle Corp.
Rosenberg Peter D.
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