METHOD AND APPARATUS FOR DRESSING DIAMONDS

摘要

FIELD: mineral dressing. SUBSTANCE: screened material is used to form air mixture, which is fed through X-ray chamber and photomultiplier into separation chambers where air mixture is stepwise recleaned by way of reducing cross- section of air mixture stream and separating air mixture into tails and concentrate. Apparatus additionally has air-pumping unit, air mixture formation chamber and convergent tubes forming separation chambers which, in each next dressing step, contain their own electromechanical gates and have narrower open flow areas as compared to preceding separation chambers. EFFECT: enhanced efficiency of process. 2 cl, 1 dwgp