云浮硫铁矿系大型沉积变质热液富集硫铁矿床,分南、北两采区。北区为富矿,无须选矿。南区系含硫17.46％的贫矿,需选别富集,已建成150万吨/年选矿厂,采用自磨工艺。 一、南采区矿石性质 南区的矿石构造主要是条带状,其次是致密块状。有用矿物为黄铁矿,其次是磁黄铁矿、白铁矿和褐铁矿,闪锌矿、方铅矿、黄铜矿含量极少。脉石矿物主要有石英、方解石、绢云母、炭质,有少量的粘土、榍石、萤石等。黄铁矿在条带矿石中的粒度一般为0.05～0.5毫米,分布在致密块状中的黄铁矿粒度一般为0.01～0.25毫米。矿石的抗压强度见表1。 Large-scale sedimentary metamorphic hydrothermal fluid in the Yunfu Pyrite Deposit enriches pyrite deposits in southern and northern mining areas. North is rich ore, no dressing. In the southern area, 17.46% of the lean mines with sulfur content are to be sorted and enriched. The 1.5 million tons / year beneficiation plant has been built and the self-grinding process has been adopted. First, the South mining area ore properties Southern ore structure is mainly strip, followed by a dense block. Useful minerals pyrite, followed by pyrrhotite, iron ore and limonite, sphalerite, galena, chalcopyrite content is minimal. Gangue minerals are mainly quartz, calcite, sericite, carbonaceous, a small amount of clay, stone, fluorite and so on. The particle size of pyrite in strip ore is generally 0.05-0.5 mm, and the pyrite size distributed in dense blocks is generally 0.01-0.25 mm. The compressive strength of ore is shown in Table 1.