白银有色金属公司去年上缴利润一亿五千四百万元。白银炼铜法经过长期试验,800吨/日白银炉工业试生产基本成功。白银炼铜法于今年荣获国家二等发明奖。由于白银炉投人生产,120米大烟囱不冒烟,解决了烟气对大气的污染。已治理的废水,开始用于浇灌农田,建设了人工河、人工湖,进行大面积绿化,所 Last year, silver non-ferrous metals companies turned over profits of 154 million yuan. Silver after a long period of copper refining test method, 800 tons / day industrial trial production of silver stove basically successful. Silver smelting method won the second prize of national invention this year. As silver furnace investment in production, 120 meters large chimney does not smoke, to solve the flue gas pollution to the atmosphere. The wastewater that has been treated has been used to irrigate farmland, built artificial rivers, artificial lakes and carried out large-scale afforestation