高炉冶炼富锰渣时每天放出大量烟尘,严重污染环境,危害人体健康。烟尘中含有百分之五十以上锰、锌、铅和铟、镓、铊等极为有用的金属元素,需要综合利用。七三年开始,在复旦大学等单位帮助下,我厂反复试验,摸索出一条直接采用“湿 When blast furnace smelts manganese-rich slag, it emits a large amount of smoke and dust every day, which seriously pollutes the environment and endanger human health. Smoke contains more than 50 percent of manganese, zinc, lead and indium, gallium, thallium and other extremely useful metal elements, the need for comprehensive utilization. Seven or three years, with the help of Fudan University and other units, I plant repeatedly tested and worked out a direct use of "wet