巴里选矿厂磨矿筛分流程中,振动细筛与二段磨形成闭路磨矿。其筛上产物返回二段磨再磨,筛下产物则进入后段浮选流程。振动细筛的筛分效果对锡石的回收有重要影响,筛分效果好,进入二段磨的量就少,避免了锡石在二段磨中过粉碎,有利于回收。因为锡石性脆,如果在磨矿中过磨了,细小的锡石在重选环节中不容易被回收,而损失在尾矿中。十几年来,巴里选矿厂使用了2种不同型号的振 Barry beneficiation plant grinding and screening process, vibrating fine sieve and second-stage mill to form closed-circuit grinding. The sieve on the product back to the second paragraph mill grinding, the next sieve product into the flotation process. Screening effect of vibrating sieve has an important influence on the recovery of cassiterite. The screening effect is good. The amount of sand entering the second stage mill is less, avoiding the crushing of cassiterite in the second stage mill, which is beneficial to recovery. Because cassiterite brittle, if worn over in the grinding, small cassiterite in the re-election link is not easy to be recovered, and lost in the tailings. For more than a decade, two different types of vibrators have been used in the Bari concentrator