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基于CFD软件Fluent 6.3对装配两种型式烧嘴的铜精炼阳极炉内的燃烧过程进行数值计算,分析了炉内气相燃烧过程的特点.结果表明,装配I型烧嘴时,保温期炉内火焰峰值温度为2301 K,火焰长度为2.3R(R为炉体半径),氧化期炉内火焰峰值温度为2506 K,火焰长度为2.0R;装配II型烧嘴时,保温期炉内火焰峰值温度为2610 K,火焰长度为1.85R,氧化期炉内火焰峰值温度高达2800 K,火焰长度为1.82R.装配I型烧嘴的阳极炉内温度较均匀,能更好满足阳极炉精炼的工艺需求.烧嘴结构和天然气速度、环氧速度与侧氧速度对阳极炉内气相燃烧过程有明显影响.
Based on the CFD software Fluent 6.3, the combustion process in the copper refining anode furnace equipped with two types of burners was numerically calculated, and the characteristics of the gas phase combustion process in the furnace were analyzed.The results showed that when the type I burner was used, The peak temperature is 2301 K, the length of the flame is 2.3R (R is the radius of the furnace), the peak temperature of the flame in the oxidation furnace is 2506 K and the length of the flame is 2.0R. When Type II burner is installed, the peak flame temperature Is 2610 K, the flame length is 1.85R, the flame peak temperature in the oxidation period is up to 2800 K and the flame length is 1.82 R. The temperature in the anode furnace equipped with the type I burner is more uniform, which can better meet the technological requirements of the anode furnace refining Burner structure and natural gas velocities, epoxy velocities and oxygen velocities have a significant effect on the gas phase combustion in the anode furnace.