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鉴于我矿矿床成因复杂,多种矿物共生在采矿中造成混采,特别是磁赤铁矿兼采,加上采矿场地点变迁,各采矿点提供的矿量不等也会使磁赤矿占有比例发生变化,给磁选作业带来困难,铁金属的回收率较低,为避免赤铁矿进到磨浮磁作业,在破碎系统增设手选赤铁矿工艺以便减少金属损失。根据设计,对磁选设备的配置采用一道弱磁选和一道强磁选,前者把磁性矿的关,后者把弱磁性矿的关。要求磁、赤废石之比为48:32:20左右。在这种特定条件下,矿山生产很难做到,只能生产什么矿选厂就加工什么矿。这样原磁选系列的配置就显得很不适应,特别是当赤铁矿占有比例增加后,笼式强磁选机选别效果差,尾矿品位均在20%以上,最高27%。为此,于1984年初在江苏省冶金研究所的帮助下,对最终尾矿进行了研究和探
In view of the complex causes of mine deposits and the mixed occurrence of various minerals in the mining industry, the combination of maghemite and maghemite in particular, coupled with the changes in the location of the mining sites, the amount of ore provided by the mining sites will also make the maghemite possession The proportion changes, to the magnetic separation operation difficult, low recovery of ferrous metal, hematite in order to avoid access to grinding magnetic operation, the addition of hand-hematite crushing system in order to reduce the metal loss. According to the design, the configuration of the magnetic separation equipment adopts a weak magnetic separation and a strong magnetic separation, the former closes the magnetic ore and the latter closes the weak magnetic ore. Requirements of magnetic, red waste stone ratio of about 48:32:20. Under such specific conditions, mine production is difficult to achieve and only what mineral processing plants can be produced can process any ore. In this way, the configuration of the original magnetic separation series is very unsuitable. Especially when the proportion of hematite occupies increases, the cage magnetic separator is poorly selected. The tailings grade is above 20% and the highest is 27%. To this end, in early 1984 with the help of the Jiangsu Provincial Institute of Metallurgy, the final tailings were studied and exploration