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在整个选矿过程中,一次球磨机-分级机闭环(以下简称一次球磨一分级闭环)运行情况的好坏,对生产起着关键性的作用。因之,为了实现整个选矿厂的自动化,我们首先进行了一次球磨-分级闭环自动控制的试验。大石河铁矿选厂所处理的矿石是由四个不同地方的露天采场供给,矿石性质变化大。大石河选厂的磨矿-分级工艺流程如图1所示。
Throughout the beneficiation process, a ball mill - classifier closed-loop (hereinafter referred to as a ball mill closed-loop classification) the performance of good or bad, plays a key role in the production. Therefore, in order to achieve the automation of the entire beneficiation plant, we first conducted a ball mill - graded closed-loop automatic control test. Ores handled by the Dashihe iron ore processing plant are supplied by open-cut stopes at four different locations and the properties of the ore vary greatly. Dashihe dressing plant grinding - grading process shown in Figure 1.