The screening process is done for both alluvial and conglomerate.
Alluvial screening is done to remove excessive fines content and oversize material. The resultant product is alluvial diamond concentrate with required particle sizes
Conglomerate screening is done to remove fines and oversize material. The screens are part of the crushing and screening circuit.
Conglomerate diamond ore is reduced to desirable particle sizes using heavy duty primary, secondary and tertiary crushers.
The crushing and screening circuits for conglomerate are either open or closed to ensure optimised processing
Alluvial and conglomerate ore is scrubbed after screening and crushing. The scrubbing process further removes unwanted fines content as well as cleaning the ore for XRT and DMS processes
The XRT (X-Ray Technology) is used to concentrate product from the scrubber process. The XRT separates diamond bearing material from non-diamond material. This is high technology which uses the carbon properties of diamonds
The Dense Media Separation (DMS) process uses the density properties of material to separate diamond and non-diamond bearing material