论文部分内容阅读
在选矿厂磨矿是耗能最大的作业。据统计,大峪口矿扩大试验要求磨矿细度-200目含量在94％以上。王集磷矿的磨矿细度为-200目含量93％,磨矿分级占全厂投资的43％,能耗占50％,占直接成本的38％。提 高选矿厂的磨矿分级效率是举足轻重的。 王集磷矿选矿要求磨矿细度-200目占93％,必须采用二段磨矿流程。1984年王集矿半工业试验采用三种磨矿分级流程(图1)。
Grinding at the concentrator is the most energy intensive operation. According to statistics, Dayukou mine expansion test requirements grinding fineness -200 mesh content above 94%. Wangji phosphate rock grinding fineness of -200 mesh content of 93%, grinding and grading accounted for 43% of the plant investment, energy consumption accounted for 50%, accounting for 38% of direct costs. It is important to improve the grinding classification efficiency of the concentrator. Wangji phosphate ore dressing requirements grinding fineness -200 mesh 93%, must be used two grinding process. In 1984 Wangji semi-industrial test using three grinding grading process (Figure 1).