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云锡公司第二冶炼厂是采用还原焙烧——氨浸法从个旧湖尾矿中回收铜,用蒸馏法从浸出液中产出氧化铜及回收氨和二氧化碳。蒸馏设备为同心园栅板塔,内装有机械耙齿作清除积垢之用。在几年来的试生产中,氨和CO_2的蒸馏效率虽均达到95%以上,但氧化铜在析出过程中生成结疤将栅板缝隙堵塞,机械耙齿亦不能将其清除甚至将耙臂扭断而被迫停塔处理。处
The second smelter of Yunxi Company recovered copper from tailings of Gejiu Lake by reduction roasting and ammonia leaching method, and produced copper oxide from leachate by distillation and recovered ammonia and carbon dioxide. Distillation equipment for the Concentric Garden grid tower, built-in mechanical rake teeth for the removal of scale used. In the trial production over the past few years, the distillation efficiencies of ammonia and CO 2 are over 95%, but the scouring of copper oxide during the precipitation process clogs the grid plate cracks, and the mechanical rake teeth can not clean them or even twist the rake arm Broke and be forced to stop tower treatment. Department