CAJ | 학술논문

在分析矿石性质的基础上,采用浮选—浮尾筛分再磨—磁选流程,使磁黄铁矿提前进入泡沫产品,减少其在磁性矿物中的混杂,浮选尾矿细筛再磨提高了矿物的单体解离度,有利于提高铁硫分选效率.试验确定了磨矿细度及工艺流程,结果表明:在硫酸铜用量为170 g/t、黄药用量为60 g/t、2#油用量为34 g/t、添加Na2CO3的条件下,获得品位65.42%、回收率68.31%、硫含量0.28%的铁精矿;同时,可综合回收硫,硫精矿品位38.73%,回收率60.02%.
재분석광석성질적기출상,채용부선—부미사분재마—자선류정,사자황철광제전진입포말산품,감소기재자성광물중적혼잡,부선미광세사재마제고료광물적단체해리도,유리우제고철류분선효솔.시험학정료마광세도급공예류정,결과표명:재류산동용량위170 g/t、황약용량위60 g/t、2#유용량위34 g/t、첨가Na2CO3적조건하,획득품위65.42%、회수솔68.31%、류함량0.28%적철정광;동시,가종합회수류,류정광품위38.73%,회수솔60.02%.
Based on analyzing the ore properties, flotation, floating tailings screening regrinding and magnetic separation process was adopted, which makes pyrrhotite get into the froth pulp in advance and reduce its confounding in the magnetic mineral. Fine screening-regrinding improves the monomer liberation degree of magnetic mineral and is beneficial to improve the separation efficiency of the iron-sulfur. The grinding fineness and technological process were determined by experiments. The results showed that under using 170 g/t copper sulphate, 60 g/t xanthate, 34 g/t No.2 oil and adding Na2CO3, the iron ore concentrate with iron grade of 65.42%, iron recovery of 68.31% and sulphur content of 0.28% were obtained, meanwhile, the sulphur concentrate with sulfur grade of 38.73%and sulphur recovery of 60.02%were also recycled.