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随县张三坡磷矿产于震旦系灯影组中部的白云岩中,矿石结构为隐晶质和显微粒状结构。胶磷矿与石英、长石、水云母、褐铁矿等矿物细粒镶嵌,且常被炭质,铁质等细脉穿插。原矿主要化学组分如下(％):P_2O_5 SiO_2 MgO Al_2O_3 Fe_2O_3 CO_213.19 47.42 1.18 3.36 4.31 2.52 使用浮选机经正交调优,确定最佳机械条件为:转速1500转/分,叶轮距槽底13毫米,叶轮直径60毫米,倾角13°42′。磨矿细度-320目96％,粗选温度35℃左右,浓度35％,添加碳酸钠、水玻璃、纸浆废液,通过粗选、扫选和三次精选,得到P_2O_526.65％,收率8O.5％的精矿。
With the occurrence of Zhangsanpo phosphate rock in the dolomite of the Sinian Dengying Formation in central part, the ore structure is cryptocrystalline and microscopic granular structure. Phosphate rock and quartz, feldspar, mica, limonite and other mineral particles inlaid, and often carbonaceous, iron and other fine veins interspersed. The main chemical composition of the ore is as follows (%): P_2O_5 SiO_2 MgO Al_2O_3 Fe_2O_3 CO_213.19 47.42 1.18 3.36 4.31 2.52 Using the flotation machine by orthogonal tuned to determine the best mechanical conditions: speed 1500 rev / min, the impeller from the bottom of the tank 13 mm, impeller diameter 60 mm, inclination 13 ° 42 ’. Grinding fineness -320 mesh 96%, roughing temperature of about 35 ℃, the concentration of 35%, adding sodium carbonate, water glass, pulp waste, through roughing, scanning and three selected, P_2O_526.65%, received 8O.5% rate of concentrate.