基于混合煤综合性能评估指数的混煤方案  

Mixed Coal Injection Solution based on Comprehensive Coal Performance Evaluation

作　　者：都海龙 王健 张蕊红 杨帆[1] 左海滨 DU Hailong;WANG jian;ZHANG Ruihong;YANG Fan;ZUO Haibin(University of Science and Technology Beijing;Jinneng Holding Shanxi Institute of Science and Technology(Jincheng)Technology Research Institute Co.,Ltd.;Shanxi Jincheng Coal Group Technology Research Institute Co.,Ltd.)

机构地区：[1]北京科技大学 [2]晋能控股山西科学技术研究院(晋城)技术研究院有限责任公司 [3]山西晋煤集团技术研究院有限责任公司 [4]北京科技大学钢铁冶金新技术国家重点实验室,北京市海淀区100083

出　　处：《炼铁》2022年第6期49-54,共6页Ironmaking

基　　金：国家自然科学基金资助项目(U1960205)。

摘　　要：用晋城赵庄煤、长平煤与神华烟煤进行混合实验,并对混合煤进行喷吹特性分析及综合性能评估。分析结果表明:(1)安全性都能满足高炉喷吹要求,赵庄煤混合煤的爆炸性和着火点的变化幅度更大;(2)输送性都能满足高炉喷吹要求,长平混合煤的流动性和喷流性稍高;(3)反应性都随着烟煤比例增加而增强,赵庄混合煤要优于长平混合煤。基于权重计算了混合煤的综合性能评估指数C值,推荐采用70%的赵庄煤与30%的神华烟煤进行混合喷吹。An experiment is carried out on the mixed coal coming from Jincheng Zhaozhuang mine,Changping minc-and Shenhua mine with aim of analyzing the injection characteristics of the mixed coal,and evaluating the mixed coal comprehensive performance.The analysis results prove:(1) The safety of different coals can meet the injection requirements,but the explosibility and ignition point of mixed coal coming from the Zhaozhuang mine vary highly;(2) The coal fluidiy can meet the injection requirements,and both the fluidity and injection flowability of mixed coal from Changping mine are slightly higher;(3) The reactivity of all coals enhances with the increase of bituminous coal proportion,and the reactivity of mixed coal from Zhaozhuang mine is higher than that from Changping mine.According to the comprehensive performance evaluation index(i.e.the value C) of the mixed coal which is calculated based on the weight,a recipe of 70% mixed coal from Zhaozhuang mine+ 30% mixed bituminous coal from Shenhua mine is proposed.

关 键 词：高炉 无烟煤 烟煤 混合喷吹 喷吹特性 综合评估 

分 类 号：TF53[冶金工程—钢铁冶金]