高炉煤气燃烧数值模拟在LOMA-MLB热风炉调试中的应用

doi:10.19698/j.cnki.1001-6171.20231043

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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NO_X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。

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	李刚健

关键词: 热风炉高炉煤气数值模拟空燃比

Abstract: 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 NO_x 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.

Key words: hot gas generator blast furnace gas CFD simulation air-fuel ratio

收稿日期: 2022-04-25 出版日期: 2023-01-25 发布日期: 2023-01-19 整期出版日期: 2023-01-25

ZTFLH:

TQ172.63

引用本文:

李刚健. 高炉煤气燃烧数值模拟在LOMA-MLB热风炉调试中的应用[J]. 水泥技术, 2023, 1(1): 43-50.
LI Gangjian. Application of Numerical Simulation of Blast Furnace Gas Combustion in Commissioning of LOMA-MLB Hot Blast Furnace. Cement Technology, 2023, 1(1): 43-50.

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http://www.cemteck.com/CN/10.19698/j.cnki.1001-6171.20231043 或 http://www.cemteck.com/CN/Y2023/V1/I1/43

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