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多罗山钨矿从1981年开始,在手选段使用了梯型跳汰机作精矿的早收设备。通过一年的生产实践,当回收粗精矿品位保持与1980年基本相同的情况下,其产率提高0.11％,钨的回收率提高9.15％,铋回收率提高5.94％。 (一)给矿性质与选别流程矿石的主要金属矿物是黑钨矿、辉铋矿、铋华、辉钼矿;脉石矿物主要是石英和少量萤石;围岩是石英砂岩和绢云母砂岩。给矿粒度-16毫米。给矿粒度组成见表1。
Dolomites tungsten ore from 1981 onwards, in the hand section of the use of ladder-type jig for the concentrate of the early harvest equipment. Through one year's production practice, the recovery of crude tungsten increased by 0.11%, the recovery of tungsten increased 9.15% and the recovery of bismuth increased by 5.94% when the recovered crude concentrate remained basically the same as in 1980. (A) of the nature of the ore and the sorting process Ore main minerals are wolframite, bismuthinite, bismuth, molybdenite; gangue minerals are mainly quartz and a small amount of fluorite; rock is quartz sandstone and sericite sandstone. Grouting size -16 mm. Table 1 shows the particle size of the ore.