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(一) 概况 我国煤系硫铁矿储量丰富,占全国硫铁矿总储量的40％以上。主要分布于四川、山西、云南、贵州、河南、湖北等省。该矿床绝大多数产于煤系地层底部,个别夹在煤系中部。因原矿品位普遍较低,平均含硫14％,只有经过选矿富集,才能满足工业生产的要求。目前,煤系硫铁矿的选矿一般采用重选和浮选两种方法。由于重选具有更多的优点,所以中小型矿山广为采用。 煤系硫铁矿的矿石构造以结核状、浸染
(A) Overview China’s coal-rich pyrite reserves, accounting for more than 40% of the total reserves of pyrite. Mainly distributed in Sichuan, Shanxi, Yunnan, Guizhou, Henan, Hubei and other provinces. The vast majority of the deposits produced at the bottom of the coal measures strata, individually trapped in the central coal. Due to the generally low ore grade, the average sulfur content is 14%. Only after beneficiation enrichment can we meet the requirements of industrial production. At present, coal pyrite beneficiation generally re-election and flotation two methods. Due to the re-election has more advantages, so widely used in small and medium-sized mines. Coal-based pyrite ore structure to tuberculosis, disseminated