| 摘要 |
<p>METHOD AND APPARATUS FOR THE WET GRAVITY CONCENTRATION OF ORES A method and apparatus is provided for the wet gravity concentration of particulate ores that will reduce the proportion of material previously requiring re-treatment for a predetermined degree of concentration. A stream of ore pulp consisting of a mixture of concentrate particles and lighter tailing particles in water is stratified so that at least a portion of the concentrate particles become located at or near the bottom of the stream. As a result, a concentrate enriched stratum is located at the bottom of the stream with a concentrate depleted stratum at the top of the stream and an intermediate stratum of approximately feed grade material between the two. The stream is divided to remove at least a part of the enriched stratum, thereby producing two sub-streams which then are stratified. The richer sub-stream is divided to remove at least part of its enriched stratum without intruding substantially into its feed grade stratum. The poorer sub-stream is divided to remove at least part of its depleted stratum without intruding substantially into its feed grade stratum.</p> |
