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目前,国外金刚石选矿厂金刚石最小回收粒径波动在0.5～1.6毫米之间。苏联《和平》岩管设计时,曾将金刚石最小回收粒径定为0.2毫米,现改为0.5毫米。国内一些金刚石原生矿选矿厂简称金刚石选厂(下同)金刚石最小回收粒径亦为0.5毫米,但地质部门用重选作地质矿床评价时,有时将金刚石最小回收粒径定为0.2毫米。多年来地质部门的试验单位多用重选对细粒级(-0.5+0.2毫米)金刚石进行评价,但这部分储量
At present, foreign diamond concentrator diamond recovery minimum particle size fluctuations in the 0.5 to 1.6 mm. Soviet Union “peace” rock tube design, once the minimum recovery of diamond particle size set at 0.2 mm, now changed to 0.5 mm. Some of the diamond primary ore dressing plant referred to as diamond processing plant (hereinafter the same) diamond recovery of the smallest particle size is 0.5 mm, but the geological department with re-election as a geological deposit evaluation, sometimes the diamond recovery of the smallest particle size set at 0.2 mm. For many years, the test units in the geological sector used multiple reselections to evaluate fine-grained (-0.5 + 0.2 mm) diamonds, but this part of reserves