Back to results
US 5,295,665 AGranted
Apparatus for beneficiating ores
OwnerDaniel A. Mackieinventor
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
OwnerDaniel A. Mackieinventor
Estimating the term…
A method and apparatus for treating mineral-bearing ores and, more particularly, for treating particulate ores containing precious metals, base metals and the like for separating and recovering said values by classifying the particulate ore on a bed of particulate material, preferably coarse particulate material, and by continuously chemically leaching the said values from the ore. In accordance with an embodiment of the invention, particulated ore is fluidized and intermittently moved through a tank to classify the ore particles into strata according to size, shape and density to beneficiate values, either heavier or lighter than the gangue, for recovery of concentrated values. In accordance with another embodiment of the present invention, crushed or ground ore is moved through a vat leaching jig in such a manner as to cause the heavier metal-laden or other values-laden particles or larger gangue particles to differentially settle to the bottom of the apparatus, which can then be extracted separately and wholly from the values such as gold or precious metal values which may be chemically leached from the ore and recovered by filtering through the bed of particulate material.
An apparatus for treating a particulate ore for the recovery of contained values therefrom comprising, in combination:
A reservoir tank for intermittently feeding a liquid comprising an outer tank having a liquid outlet, an inner tank for receiving a liquid having a substantially half cylindrical wall closed at each end by semi-circular end walls having pivot supports at the longitudinal axis of the half cylindrical wall, and means for intermittently pivoting said inner tank within the outer tank for discharge of liquid into the outer tank comprising a hydraulic or pneumatic piston-cylinder assembly operatively connected to the inner tank.
An apparatus for withdrawing particulate solids from a bed of solids comprising at least one wheel having a pair of spaced apart sidewalls mounted for rotation in the said bed, said wheel having a periphery of sufficiently large diameter whereby the wheel periphery substantially penetrates the depth of the solids in the bed during rotation thereof, said wheel having a plurality of equispaced pockets formed about the periphery between the sidewalls, each of said pockets having a first wall opening on one sidewall of the wheel adjacent the periphery for collecting solids at one side of the wheel while the said pockets are immersed in the bed and each of said pockets having a second wall opening on the opposite side wall of the wheel inwardly towards the centre of the wheel relative to the first sidewall opening whereby ore collected in said pockets is discharged from the opposite side of the wheel as the pockets are elevated above the horizontal diameter of the wheel.
Dependencies are inferred from the claim text.