甘肃洛坝铅锌矿选矿流程考察与优化

周贺鹏,胡洁,段朝阳,邓攀,钟志刚,张永兵

Investigation and Optimization of Processing Flowsheet for a Luoba Lead-zinc Mine in Gansu Province

Hepeng ZHOU,Jie HU,Chaoyang DUAN,Pan DENG,Zhigang ZHONG,Yongbing ZHANG

表5 选矿产品粒度组成

Table 5 Particle size composition of mineral products

产品名称 粒级/μm 产率/% 品位/% 分布率/% Pb Zn SiO2 Pb Zn SiO2 铅精矿 +125 3.13 56.17 7.90 4.35 3.25 5.58 3.33 -125+74 5.39 59.42 7.35 2.65 5.93 8.94 3.49 -74+45 15.10 68.55 5.15 1.64 19.15 17.54 6.05 -45+38 11.74 58.28 5.84 3.29 12.66 15.47 9.44 -38 64.63 49.36 3.60 4.92 59.01 52.48 77.69 合计 100.00 100.00 100.00 100.00 选铅尾矿 +125 25.95 0.16 1.60 47.41 29.48 16.63 63.84 -125+74 11.27 0.08 2.87 41.86 6.40 12.96 24.48 -74+45 14.76 0.18 3.49 3.76 18.87 20.64 2.88 -45+38 4.35 0.16 3.56 3.68 4.94 6.20 0.83 -38 43.68 0.13 2.49 3.52 40.32 43.57 7.98 合计 100.00 100.00 100.00 100.00 锌精矿 +125 13.18 0.85 52.78 6.72 20.33 13.343 16.805 -125+74 13.32 0.65 53.03 4.49 15.71 13.545 11.344 -74+45 19.79 0.32 53.11 3.87 11.49 20.157 14.529 -45+38 6.97 0.26 53.59 4.25 3.29 7.162 5.619 -38 46.74 0.58 51.08 5.83 49.19 45.793 51.702 合计 100.00 100.00 100.00 100.00 总尾矿 +125 15.49 0.10 0.10 48.02 15.51 9.87 18.70 -125+74 10.00 0.16 0.15 41.63 16.01 9.56 10.47 -74+45 15.52 0.13 0.13 41.21 20.21 12.86 16.09 -45+38 5.04 0.10 0.18 41.31 5.05 5.78 5.24 -38 53.96 0.08 0.18 36.48 43.22 61.92 49.51 合计 100.00 100.00 100.00 100.00