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第一冶炼厂铜电气收尘回收的烟尘,成份非常复杂(Cu6～12％、Pb14～28％、As5～13％、Zn4～9％、S10～15％、Fe2～3％、SiO_22～3％、CaO0.3～0.5％、Au3～8克/吨、Ag340～640克/吨、Sn2～3％、Ni0.3～0.4％、Bi0.5～0.8％、Sb0.8～1.5％),更由于过去所采用的流程不当,不仅造成有价金属的过多损失,同时又引起了生产上的操作困难。在积存下来的铜烟灰中,仅就铜、铅、锌、铋、锡五项金属而言,价值就在200万元以上。为了解决物资积压、达到原料综合利用、简化生产流程,我们根据苏联专家建议和有关资料的记载,并结合目前现有设备情况,进行了迴转窑分离法和反射炉熔析法的试验研究。
The soot recovered from the copper smelter in the first smelter is very complex (Cu6-12%, Pb14-28%, As5-13%, Zn4-9%, S10-15%, Fe2-3%, SiO22-3% , CaO 0.3 to 0.5%, Au 3 to 8 g / t, Ag 340 to 640 g / t, Sn 2 to 3%, Ni 0.3 to 0.4%, Bi 0.5 to 0.8%, Sb 0.8 to 1.5% Due to the improper process adopted in the past, it not only caused excessive loss of valuable metals, but also caused operational difficulties in production. In the accumulated copper soot, only the copper, lead, zinc, bismuth, tin five metals, the value of more than 2 million yuan. In order to solve the backlog of materials, achieve the comprehensive utilization of raw materials and simplify the production process, we conducted a pilot study on the rotary kiln separation method and the reverberatory furnace melting method according to the records of the Soviet experts and relevant materials and the existing equipment.