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选矿生产中,磨矿产品细度,是影响选矿生产指标的一项重要的技术指标。选矿现场,必须经常对入选的磨矿产品进行筛分检查,以便及时掌握细度情况。如果磨矿效果不好,就必须采取相应的技术措施。试验室进行这项工作,通常是取磨矿分级样,烘干称得重量Q_0(取100克),再进行湿筛,筛上产品烘干称得重量Q_1(克),然后才能由Q_1和Q_0计算出筛分样+200目和-200目的产率。
In the process of dressing, the fineness of grinding product is an important technical index that affects the dressing production index. Dressing site, we must often screening the selected grinding products to check in order to grasp the fineness of the situation. If the grinding effect is not good, it must take the appropriate technical measures. Laboratory work, usually take the grading grade sample, weighed dry weight Q_0 (take 100 grams), and then wet sieve, sieved on the product was weighed Q 1 (g), and then by Q_1 and Q_0 Sieve samples were calculated +200 mesh and -200 mesh yield.