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%,Al2O3品位58.74%,Al2O3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.
Abstract:
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 characteristics of the deposit,we innovatively used the following technical process to recycle kyanite ore:" crude ore-crushing-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 Al2O3 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 scpatation" to recycle garnet,muscovite and biotite(black mica).The result was that the muscovite concentrate rate was 17.57% with the mineral amount 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,associated minerals as garnet,muscovite and biotite could also be comprehensively recovered and utilized in this deposit.The quality standard of the final product of kyanite concentrate meets the national standard LJ-52.
下载: