高炉喷吹用煤性能分析及配煤结构优化  

PERFORMANCE ANALYSIS OF COAL FOR BLAST FURNACE INJECTION AND OPTIMIZATION OF COAL BLENDING STRUCTURE

作　　者：刘颖超 王京彬 佘雪峰[1] 王瑞强 刘燕军 薛庆国[1] Liu Yingchao;Wang Jingbin;She Xuefeng;Wang Ruiqiang;Liu Yanjun;Xue Qingguo(University of Science and Technology Beijing,Beijing 100083;Ironmaking Plant of Delong Iron and Steel Co.,Ltd.,Xingtai 054009,Hebei;Hebei Hot Rolled Plate and Strip Technology Innovation Center,Xingtain 054009,Hebei)

机构地区：[1]北京科技大学,北京100083 [2]德龙钢铁有限公司炼铁厂,河北邢台054009 [3]河北省热轧板带钢技术创新中心,河北邢台054009

出　　处：《河北冶金》2021年第10期14-19,共6页Hebei Metallurgy

基　　金：国家自然科学基金编号(U1960205);金属化炉料处理高炉炉缸堆积的关键技术研究(41620008)。

摘　　要：对德龙钢铁公司所用煤粉的理化性能指标进行了全面分析,通过研究各单一煤粉之间的相互作用,建立了以燃烧性为主导的多指标优化配煤模型。为验证模型的准确性,在模型优化理论计算的基础上,进行了三个阶段的工业试验,实现了理论计算和实际应用的相互结合。结果表明,采用D煤40%+B煤40%+F煤20%的配煤方案,混合煤的理化性能较好,且工业试验应用中,焦比由最高361.11 kg/t降低到341.06 kg/t,煤比由146.78 kg/t提高到152.19 kg/t,达到了降低吨铁成本的效果。The physical and chemical properties of pulverized coal used in Delong Iron and Steel Company were analyzed in this paper.By studying the interaction between single pulverized coal,a multi index optimization coal blending model dominated by combustibility is established.In order to verify the model accuracy,based on the theoretical calculation of model optimization,three stages of industrial tests are carried out to realize the combination of theoretical calculation and practical application.The results show that the coal blending scheme of D coal 40%+B coal 40%+F coal 20%has good physical and chemical properties.In the industrial test application,the coke ratio is reduced from 361.11 kg/t to 341.06 kg/t,and the coal ratio is increased from 146.78 kg/t to 152.19 kg/t,which achieves the effect of reducing the cost per ton of iron.

关 键 词：高炉 煤粉 配煤模型 混合煤 燃烧性 焦比 煤比 

分 类 号：TF538.6[冶金工程—钢铁冶金]