工业熔铅生产铅蒸气污染扩散过程数值模拟  

Numerical Simulation of Lead Vapor Contamination Diffusion Process in Industrial Production of Molten Lead

作　　者：谢锴[1] 李启[1] 米沙[1] 

机构地区：[1]中南大学能源科学与工程学院,长沙410083

出　　处：《有色金属（冶炼部分）》2016年第6期71-75,共5页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家高技术研究发展计划(863计划)重点项目(2009AA064600)

摘　　要：建立粗铅熔融精炼的实体模型,对熔铅生产时铅蒸气收集情况进行三维数值模拟。研究熔铅锅及负压板周围的流动特性,结果表明,计算结果与测试数据较为吻合,侧边吸风罩收集铅蒸气的体积分数小,进入其中的气体大部分为空气,铅蒸气密度过大容易下沉而无法被收集进入吸风管道,总管处铅蒸气的收集效率只有1.1%,收集效果不理想。Entity model of smelting and refining of crude lead was built for three-dimensional numerical simulation of lead vapor collection during lead smelting and investigation of flow characteristics of molten lead pot and negative pressure plate.The results show that calculation results agree well with test data.Volume fraction of lead vapor is small and most of gas is air in side suction hood.The heavy lead vapor is easy to sink and cannot be collected into suction tube.The collection efficiency of lead vapor in suction tube is not ideal as only as 1.1%.

关 键 词：铅蒸气 熔铅锅 负压板 数值模拟 

分 类 号：TF812[冶金工程—有色金属冶金] X708[环境科学与工程—环境工程]