含氰尾矿与冶炼烟气协同优化试验研究及应用
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摘要
针对某黄金冶炼公司生产工艺特点,以实现含氰尾矿达标堆存外售,冶炼烟气达标排放为主要目的,采用长春黄金研究院有限公司自主研发的WAST技术进行了含氰尾矿与冶炼烟气协同优化实验室、半工业试验及工业应用。结果表明:WAST技术工业运行稳定,其对含氰尾矿中氰化物的去除率达99%以上,冶炼烟气中二氧化硫的利用率高达99. 5%。优化后的尾矿达到HJ 943—2018 《黄金行业氰渣污染控制技术规范》入库处置及产品利用标准,临时堆存,定期外售;冶炼烟气实现了稳定达标排放。
Based on the characteristics of the production process of a gold smelting company,WAST technology independently developed by Chagnchun Gold Research Institute Co.,Ltd. is used to carry out synergistic optimization of cyanide tailings and smelting flue gas through lab test,pilot test and industrial application,in order for the cyanide tailings to reach the stockpiling and sale standards and for the smelting flue gas to reach the emission standards. The results show that industrial application of WAST technology renders stable operation performance with the removal rate of cyanide from cyanide tailings up to over 99 % and the utilization rate of sulfur dioxide in smelting flue gas up to99. 5 %. According to the storage disposition and product utilization standards stipulated by HJ 943-2018 " Technical Code for Cyanide Tailings Pollution Control in Gold Industry",the optimized tailings can be stockpiled temporarily and sold regularly,and steady and standard emission of smelting flue gas is achieved.
Based on the characteristics of the production process of a gold smelting company,WAST technology independently developed by Chagnchun Gold Research Institute Co.,Ltd. is used to carry out synergistic optimization of cyanide tailings and smelting flue gas through lab test,pilot test and industrial application,in order for the cyanide tailings to reach the stockpiling and sale standards and for the smelting flue gas to reach the emission standards. The results show that industrial application of WAST technology renders stable operation performance with the removal rate of cyanide from cyanide tailings up to over 99 % and the utilization rate of sulfur dioxide in smelting flue gas up to99. 5 %. According to the storage disposition and product utilization standards stipulated by HJ 943-2018 " Technical Code for Cyanide Tailings Pollution Control in Gold Industry",the optimized tailings can be stockpiled temporarily and sold regularly,and steady and standard emission of smelting flue gas is achieved.
引文
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[2]张建军,杨根祥.黄金矿山尾矿的分类与开发利用[J].沈阳黄金学院学报,1996,15(1):28-31.
[3]王岩,郝晓旭,鲁然英,等.黄金冶炼含氰废渣对环境的影响及处理方法[J].河南建材,2013(4):91-93.
[4]段林乔.冶炼烟气制酸尾气回收SO2的实践和改进[J].铜业工程,2008(3):33-35.
[5]张大同,高素萍,谢爱军.金矿尾矿及废水中氰化物的处理研究进展[J].山西冶金,2016(3):48-51.
[6]周世桂.从工业废水中除去氰化物的方法[J].稀有金属,1983(5):96.
[7]高大明.氰化物污染及其治理技术(续6)[J].黄金,1998,19(7):58-60.