Introduction

The centrifugal concentrator (CC),a new type of gravity separation equipment,is specially designed for recovering the precious metals such as gold,silver,tin,lead.By taking advantage of the different density of different materials,the CC successfully separates the minerals under the high speed centrifugal rotation of the bowl as well as the pressured fluidization water,the experiment proved that it is particularly efficient for gold ore Its recovery ratio for free gold below 300 mesh could be ＞95% and the concentration ratio can be up to 1000 times,So the CC can not only replace the gravity separation equipment such as the sluice box,spiral separator,or jig machine in the processing flow,but also efficiently solve the problem of fine gold partides losing in tailings.