Adopting lamination crushing,pre-selection tail,ball milling,tower miling and aid-grinding,ISA milling,dis-persion flocculation stage grinding and stage magnetic separation process,under the conditions of grinding fineness of-8 μm about 85%,micrograined huangshaquan iron ore can get better index of concentrate grade 62.83%,SiO25.21%,TFe recovery 65.70%,MFe recovery 94.78%. Significant improvement in relative grindability after laminated crushing,when the dosage of composite grinding aids is 1 kg/t,the grinding effect can reach at least 10%.
关键词
层压破碎/预选抛尾/绝对可磨度/解离度/磨矿/分散-絮凝磁选
Key words
lamination crushing/pre-selection tail/absolute grindability/dissocation degree/grinding/dispersing-flocculation magnetic separation