论文部分内容阅读
根据气膜传质控制理论,在物料平衡和能量平衡的基础上,建立了O2高炉风口前燃烧带数学模型,模拟了不同鼓风速度和O2湿度条件下风口前燃烧带内气体各组分浓度场和温度场分布情况。模拟结果表明:改变鼓风速度可以调节风口前燃烧带气体温度和浓度分布,从而调节O2高炉软熔带形状及煤气流分布;增加鼓风湿度可以降低风口理论燃烧温度,增大还原煤气中H2含量。
According to the theory of gas-mass transfer control, based on the material balance and energy balance, a mathematical model of O2 blast furnace pre-combustion zone was set up. The gas composition in the pre-tuyere combustion zone under different blowing velocity and O2 humidity Field and temperature field distribution. The simulation results show that changing the blowing velocity can adjust the gas temperature and concentration distribution in the combustion zone before tuyere to adjust the shape and flow distribution of the soft melts in the O2 blast furnace. Increasing the blowing air humidity can reduce the theoretical combustion temperature of the tuyere and increase the H2 content.