煤焦显微结构特征与焦炭性质的关系

来源期刊：钢铁2011年第1期

论文作者：张代林 曾涛 李伟锋 王培珍 郑明东

文章页码：14 - 18

关键词：显微结构； 镜质组平均最大反射率； 焦炭光学组织； 焦炭性质

Key words：microstructure； vitrinite mean maximum reflectance； coke optical texture； coke quality

摘    要：通过分析13种不同变质程度的单种煤的煤岩性质以及对应的40 kg试验焦炉所炼焦炭的性质,结果表明:焦炭光学组织指数(OTI)与单种煤镜质组平均最大反射率存在正相关线性关系;通过多元线性回归分析,确定了镜质组反射率分布和焦炭光学组织组成的定量关系;同时也总结了焦炭抗碎强度M₄₀和反应性CRI与焦炭光学组织组成的关系:焦炭光学组织中镶嵌状结构所占比例越多,焦炭的抗碎强度M₄₀越高,其反应性CRI也较低。

Abstract: The coal petrography of 13 different rank single coals and the quality of cokes made by 4 0 kg pilot coke oven were measured and analyzed.The results indicate that the relationship between optical texture index of coke(OTI) and vitrinite mean maximum reflectance of single coal is positive linear correlation.By multiple linear regression analysis,the quantitative relationship between vitrinite reflectance distribution and the component of coke optical texture are determined.The influence of composition of coke optical texture on crushing strength for coke(M₄₀) and coke reactivity index(CRI) can be summarized: the more mosaics texture proportion of the optical texture,the better of crushing strength for coke(M₄₀) and its coke reactivity index(CRI).