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我矿东矿区系年产10万吨规模的小矿点。矿物以磁铁矿为主,其四元碱度值为1.2～1.6,属于自熔性或碱性铁矿石。因其碱度高,可以节约高炉熔剂,理当受到用户欢迎。但是,由于出窿品位过低(30～32%),加工工艺过于简陋(一段颚式破碎机开路破碎,图一,α),历年所生产的自熔性高炉粉矿(粒度—10m/m,以下简称粉矿)品位只有27%左右;自熔性高炉块矿(粒度大于10m/m,以下简称块矿)品位只有32%左右,块矿的粒度上限高达60
Mine I mine area with an annual output of 100,000 tons of small-scale ore. Minerals mainly magnetite, its quaternary alkalinity of 1.2 ~ 1.6, belonging to self-fluxing or alkaline iron ore. Because of its high alkalinity, you can save the blast furnace flux, should be welcomed by users. However, due to the low grade (30 ~ 32%), the processing technology is too simple (a jaw crusher broken open, Figure 1, α), produced in the past years of self-fluxing blast furnace fines (particle size -10m / m , Hereinafter referred to as ores) grade is only about 27%; self-flux blast furnace lump ore (particle size greater than 10m / m, hereinafter referred to as lump ore) grade is only about 32%, lump ore particle size up to 60