Date of Award
8-17-1995
Document Type
Thesis
Abstract
During 1985 and 1986 both laboratory and field test work were conducted to study the operating parameters of the Knudsen bowl concentrator. In the past, some miners have attempted to use these bowls in Alaska, but have not been able to operate them profitably, because of the lack of accurate operating information. This study carefully examined different operating parameters of the Knudsen bowl and their effect on bowl capacity and recovery of gold. The results of the laboratory study were field tested at EVECO’s placer gold operation near Fox, Alaska. The testing showed that for a continuous feed operation the recovery of 48x65 mesh gold decreases when the feed size is over 1/8 inch or the feed rate is over 2 cubic yards per hour. The Knudsen bowl's operating characteristics would make it a logical choice as a secondary concentrator.
Recommended Citation
Mark Anthony, Michael Richard, "Laboratory and field testing of the Knudsen bowl concentrator" (1995). Engineering . 508.
https://ualaska.researchcommons.org/uaf_grad_engineering/508
Handle
http://hdl.handle.net/11122/14826