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格兰达克矿区位置偏僻,选矿厂各项消耗品的运费高。采用自磨矿可降低钢球的消耗。在试验厂进行了二种自磨矿试验,结果,格兰达克选矿厂选择了棒磨—砾磨的磨矿流程。含铜闪长岩矿体含有黄铜矿和磁黄铁矿,平均比重为2.92。由50％的石英,30％的硅酸盐铁镁矿,5％的方解石,5％的磁黄铁矿,5％的黄铜矿,3％的磁铁矿及2％的其他岩石矿物组
Grantee mining location remote, concentrator various consumables shipping costs. Self-grinding can reduce the consumption of steel balls. Two self-grinding tests were carried out in the pilot plant. As a result, the Grandak beneficiation plant selected the grinding process for the rod mill-pebble mill. The copper-bearing diorite ore bodies contain chalcopyrite and pyrrhotite, with an average specific gravity of 2.92. Composed of 50% quartz, 30% silicate fliemite, 5% calcite, 5% pyrrhotite, 5% chalcopyrite, 3% magnetite and 2% other rock minerals