铜精炼阳极炉氧化过程炉膛烟气温度动态模型

基于能量平衡原理,建立了铜精炼阳极炉氧化过程炉膛烟气温度变化动态响应模型。由此动态响应模型及其应用可知,当重油质量流量、助燃空气消耗系数、氧化空气质量流量扰动幅度均为其静态值的0 1倍时,重油质量流量扰动、助燃空气消耗系数扰动对炉膛内烟气温度变化影响较大,而氧化空气质量流量扰动相对前二者来说,影响要小得多;且铜精炼氧化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。

DYNAMIC MODEL OF FUME TEMPERATURE IN THE HEARTH OF COPPER REFINING ROTARY ANODE FURNACE IN OXYGENATION PHASE

A dynamic response model of fume temperature change in the hearth was established based on the law of energy conservation.The results of the model and its verifying reveal that influence degree of fume temperature change in the hearth from the disturbance of heavy oil mass flux or the disturbance of consuming coefficient of combustion-supporting air is much greater than that from the disturbance of oxygenation air mass flux when all of their disturbance are 10% of their static value.Furthermore,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 is more beneficial to on-line control and operation optimum of copper refining course.