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云锡大屯选厂硫化矿车间,处理含锡多金属硫化矿。原矿含铋0.07％左右,多呈自然铋的形态存在,几何粒度大都小于0.010毫米。每年进入流程的铋金属,不下300吨。目前,采用摇床重选法回收。由于铋矿物粒度细、常与大量的大比重硫化物混杂在一起,摇床重选效率很低,仅回收了原矿中4--8％的铋,宝贵资源大量流失。重选得出的初铋精矿,平均含铋10--13％,含砷约10％,含锡约2％,在火法
Yun Tin Datun election plant sulfide ore workshop, handling tin-containing polymetallic sulfide ore. Ore bismuth containing about 0.07%, mostly in the form of natural bismuth, the geometric size of mostly less than 0.010 mm. Bismuth metal entering the process every year, no less than 300 tons. At present, the use of shaker re-election recovery. Due to the fine grain size of bismuth, often mixed with a large amount of large proportion of sulfide, shaker re-election efficiency is very low, only the recovery of 4 - 8% of the ore bismuth, a substantial loss of valuable resources. The initial bismuth concentrate obtained by re-election contains an average of 10-13% of bismuth, about 10% of arsenic and about 2% of tin. In the fire method