摘要
LOMA-MLB热风炉为适用于高炉煤气的炉型,通过计算机建模和网格划分,使用Fluent软件数值模拟高炉煤气在热风炉中的燃烧情况,验证热风炉调试时配风所需的空燃比及烟气温度参考值。模拟结果表明,燃烧反应质量传递过程基本完成,实验数据比模拟数据计算的热值稍高,模拟燃烧燃尽率高,燃烧火焰中心最高温度为1 595K,出口处NOX含量仅为0.008 6ppm,高炉煤气钝体的设计有利于燃料与空气的混合和保持火焰的连续稳定。
LOMA-MLB hot gas generator is suitable for blast furnace gas. Through computer modeling and mesh division, the combustion of blast furnace gas in the hot gas generator is numerically simulated by using Fluent software to verify the air-fuel ratio and flue gas temperature reference value required for air distribution during hot gas generator commissioning. The simulation results show that the combustion reaction mass transfer process is basically completed, the experimental data is slightly higher than the heat value calculated by the simulation data, and the simulated combustion burnout rate is high. The maximum temperature of the combustion flame center is 1 595K, and the NOx content at the outlet is only 0.008 6ppm. The design of the bluff body of the gas burner is conducive to the mixing of fuel and air and the continuous stability of the flame.
作者
李刚健
LI Gangjian(Loesche(Shanghai)Co.,Ltd.,Hohhot Inner Mongolia 010000,China)
出处
《水泥技术》
2023年第1期43-50,共8页
Cement Technology
关键词
热风炉
高炉煤气
数值模拟
空燃比
hot gas generator
blast furnace gas
CFD simulation
air-fuel ratio
