本课题针对传统湿煤炼焦产生大量有毒焦化废水、焦炉燃烧氮氧化物排放、干熄焦关键部件易腐蚀老化等突出问题，通过以干燥分级焦炉外脱水炼焦、换热式两段焦炉达到干煤高效清洁炼焦，对焦炉立火道燃烧内外循环燃烧模拟达到低氮排放，干熄焦关键部件损坏机理模拟提出相应长寿化控制方法，形成焦化炼焦工序清洁、高效、长寿等关键技术，相关成果应用于武钢、首钢等工程建设中，支撑项目吨铁能耗降低5kgce 以上、吨钢气体污染物排放比 2015 年降低 20%以上等指标。

This topic addresses outstanding problems such as the large amount of toxic coking wastewater produced by traditional wet coal coking, the emission of nitrogen oxides from coke oven combustion, and the prone to corrosion and aging of key components of dry quenching. The drying and classification of coke ovens are used for dewatering coking and heat exchange two-stage coke ovens. To achieve high-efficiency and clean coking of dry coal, the combustion simulation of the internal and external circulation of the coke furnace vertical flue combustion achieves low nitrogen emissions, and the damage mechanism of the key components of dry quenching is simulated. , The relevant results were applied to the construction of Wuhan Iron and Steel, Shougang and other projects, supporting the project to reduce energy consumption per ton of iron by more than 5kgce, and reduce gas pollutant emissions per ton of steel by more than 20% compared with 2015.