某难处理硫铁金矿冶炼沸腾炉技术改造  

Retrofit of a Smelting Fluidized Bed Furnace for a Difficult-to-treat Pyrite Gold Ore

作　　者：孙晋琳 尹福兴 张映群 汪国祥 段亚林 陈树文 自鹏桦 SUN Jin-lin;YIN Fu-xing;ZHANG Ying-qun;WANG Guo-xiang;DUAN Ya-lin;CHEN Shu-wen;ZI Peng-hua(Heqing Beiya Mining Co.,Ltd.,Dali 671000,China)

机构地区：[1]鹤庆北衙矿业有限公司,云南大理671000

出　　处：《硫磷设计与粉体工程》2024年第4期36-40,I0002,共6页Sulphur Phosphorus & Bulk Materials Handling Related Engineering

摘　　要：某硫铁金矿颗粒较细,且含有害元素砷,采用焙烧+氰化工艺处理,金回收率仅有51%~63%,且无法获得高价值铁精粉。试验分析了硫铁金矿的物化特性,模拟了其焙烧过程,获得了最佳的焙烧效果及控制参数,并根据焙烧试验结果对沸腾炉进行了优化改造,以提高焙烧效果和金浸出率,获得低含砷的铁产品,从而实现难处理硫铁资源的高效利用。The pyrite gold ore has fine particles and contains harmful elements such as arsenic.The gold recovery rate is only 51%to 63%when the roasting+cyanidation process is employed,and high-value iron concentrate cannot be obtained.The physical and chemical properties of the pyrite gold ore are analyzed,and its roasting is simulated to obtain the best roasting effect and control parameters.According to the findings of the roasting test,the fluidized bed furnace is optimized and retrofitted to improve the roasting effect and gold leaching rate,and obtain iron products with low arsenic content,thereby realizing the efficient utilization of difficult-to-treat pyrite resources.

关 键 词：硫铁金矿 冶炼 焙烧试验 沸腾炉改造 资源利用 

分 类 号：X751[环境科学与工程—环境工程]