摘要
萨尔哈布塔勒蓝晶石矿产于石榴蓝晶二云母石英片岩中,成分复杂,给有效分选带来难度。针对这个特点,创新性的采用"原矿-破碎-干磁抛尾-磨矿-螺旋溜槽抛尾-再磨-蓝晶石浮选-磁选除铁"工艺流程方案回收蓝晶石矿,试验结果为:蓝晶石精矿产率7.15%,Al_2O_3品位58.74%,Al_2O_3回收率20.97%,蓝晶石矿物量95.26%,矿物回收率75.53%;溜槽尾矿采用"筛分-重选-磁选"工艺流程回收白云母,干磁尾矿采用"重选-筛分-磁选"工艺流程回收石榴子石、白云母、黑云母。试验结果为:白云母精矿产率17.57%,矿物量98%;黑云母精矿产率9.48%,矿物量90%;石榴子石精矿产率3.36%,矿物量95%。试验表明该矿除蓝晶石矿物可利用外,伴生石榴子石、白云母、黑云母等矿物也可综合回收利用。最终产品蓝晶石精矿质量指标达到LJ-52国家标准要求。
The Saerhabutale kyanite deposit in Gansu Province originates from garnet kyanite two-mica quartz schist, whose complicated component brings large difficulty to achieve effective separation. According to the charac- teristics of the deposit, we innovatively used the following technical process to recycle kyanite ore:" crude ore-crush- ing-dry magnetic tailings discarding-grinding-tailing discarding via spiral chute-grinding again-kyanite flotation-iron removal" by magnetic separation. The result was that the kyanite concentrate yield was 7.15%, the grade of A12 03 was 58.74% with the recovery of 20. 97% and the kyanite mineral amount was 95.26% with the recovery of 75.53%. Chute tailings were adopted" sieving-reelection-magnetic sepatation" process to recycle muscovite (white mica) ,while the dry magnetic tailings were adopted" reelection-sieving-magnetic sepatation"to recycle garnet, mus- covite and biotite (black mica). The result was that the muscovite concentrate rate was 17.57% with the mineral a- mount of 98%, the biotite concentrate rate was 9.48% with the mineral amount of 90% and the garnet concentrate yield was 3.36% with the mineral amount of 95%. The test shows that, except the kyanite is available to exploit, as- sociated minerals as garnet, muscovite and biotite could also be comprehensively recovered and utilized in this de- posit. The quality standard of the final product of kyanite concentrate meets the national standard LJ-52.
出处
《矿产综合利用》
北大核心
2017年第6期72-77,共6页
Multipurpose Utilization of Mineral Resources