基于能质流平衡与数值仿真的浮渣转炉热工诊断与节能分析  

Thermal Diagnosis and Energy Saving Analysis of Copper Dross Converter Based on Energy-Mass Flow Balance and Numerical Simulation

作　　者：闫友 谢环宇 胡卫文 阳自霖 刘勇 闫红杰[2] 刘柳[2] YAN You;XIE Huanyu;HU Weiwen;YANG Zilin;LIU Yong;YAN Hongjie;LIU Liu(Hunan Shuikoushan Nonferrous Metals Group Co.,Ltd.,Hengyang 421513,Hunan,China;School of Energy Science and Engineering,Central South University,Changsha 410083,China)

机构地区：[1]湖南水口山有色金属集团有限公司,湖南衡阳421513 [2]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）》2024年第8期20-29,共10页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家自然科学基金资助项目(51676211)。

摘　　要：通过对铜浮渣转炉进行热工综合测试,获取了转炉关键位置的温度、压力、烟气组分等炉况参数,分析了转炉能量利用状况和能质流路径。通过数值模拟技术,基于热工测试数据,模拟了炉膛内天然气的富氧燃烧过程。结果表明,铜浮渣转炉的热效率为19.96%,转炉漏风量过大、壁面散热量过大是转炉热效率较低的主要原因。此外,转炉粒煤用量在反应热理论计算中过量较多。根据热工诊断结果,提出的节能优化建议为:调整粒煤用量,达成最优配料;采取保温措施,减少表面散热;增强转炉密闭性,减少漏风量;调整烧嘴布置方式,强化烟气与熔体换热。The temperature,pressure,flue gas composition and other parameters at key positions of the converter were obtained through comprehensive thermal test on a copper dross converter,and the energy utilization and energy-mass flow path of the converter were analyzed.The oxygen-enriched combustion process of natural gas in the furnace was simulated by numerical simulation technology based on thermal test data.The results show that the thermal efficiency of the copper dross converter is 19.96%,and the main reasons for the low thermal efficiency of the converter are excessive air leakage and excessive heat dissipation from the wall.In addition,the excessive amount of pulverized coal used in the reaction heat theory calculation is also considerable.Based on the thermal diagnosis results,the following energy-saving optimization suggestions are proposed:adjust the amount of pulverized coal to achieve the optimal dosing;take insulation measures to reduce surface heat dissipation;enhance the tightness of the converter to reduce air leakage;adjust the layout of burners to enhance heat exchange between flue gas and melt.

关 键 词：铜浮渣转炉 热工测试 热平衡 节能优化 数值模拟 天然气 富氧燃烧 

分 类 号：TF18[冶金工程—冶金物理化学] TF812