铜精炼阳极炉还原过程炉膛烟气温度动态模型.pdfVIP

第 3 卷第 1 期 材 　料 　与 　冶 　金 　学 　报 Vol3 No 1 2004 年 3 月 Journal of Materials and Met allurgy March 2003 铜精炼阳极炉还原过程 炉膛烟气温度动态模型 1 1 1 1 2 2 鄂加强 , 梅 　炽 , 时章明 , 刘春洋 , 张卫华 , 陈羽年 1 中南大学能源与动力工程学院 , 湖南 长沙 , 4 10083 ; 2 贵溪冶炼厂 , 江西 贵溪 , 334524 摘 　要 : 基于能量平衡原理 , 建立了铜精炼还原过程炉膛烟气温度动态模型. 由此动态模型及应用 可知 , 当液化气质量流量 、助燃空气质量流量在其静态值上扰动幅度相等时 , 液化气质量流量扰动 对炉膛内烟气温度变化影响较小 , 而助燃空气质量流量扰动相对前者来说 , 影响要大得多. 且铜精 炼还原过程炉膛具有很大的热惯性 , 这直接导致炉膛烟气温度动态响应速度很慢 , 动态过程时间很 长的现象出现. 此动态模型有利于铜精炼阳极炉的在线优化控制. 关键词 : 铜精炼阳极炉 ; 动态模型 ; 还原过程 ; 液化气 ; 烟气温度变化 中图分类号 : TF 806 ; TF 811 　　文献标识码 : A 　　文章编号 : 167 16620 2004 0 1002505 Dyna mic model of smoke temperature in the hearthof copper ref ining rotary anode f urnace in the reduction phase 1 1 1 E J iaqiang , M EI Chi , SH I Zhangming , 1 2 2 L IU Chunyang , ZHAN G Weihua , CHEN Yunian 1School of Energy and Power Engineering , Cent ral Sout h Univer sity , Changsha , 4 10083 , China ; 2 GU IXI Smelter , Jiangxi , 334524 China Abstract : A dynamic model of smoke temperature in the hearth was established based on the law of energy conservation . The result s of the model and it s application revealed that the influence degree on the smoke temperature change in the hearth by the disturbance of mass flux of liquefied petroleum gas was much greater than that by the disturbance of mass flux of combustionsupporting air when their disturbances were equal to each other at their static values. Furthermore , and the value of heat inertia in the hearth of copper refining rotary anode furnace in the reduction phase is so big that smoke temperature change can not quickly respond to the disturbance. The model can be used in the online control and optimization of the copper refining process. Key words : copp er refining rotary anode furnace ; dynamic model ; reduction p hase ; liquefied p etroleum gas ; smoke temp erature change 火法炼铜生产的粗铜中的质量分数在 980 % 期的氧化风管由吹入氧化空气切换为吹入液化石油 ～993 %之间 ,而电解精炼一般要求阳极铜杂质总 气 以下简称液化气