煤岩配煤技术研究进展

Progress of blending based on coal petrography

针对传统配煤方法繁琐、效率低等问题,从成焦机理方面论述了煤岩配煤的理论基础,阐述了具有代表性的几种煤岩配煤方法,分析了煤岩分析指标与焦炭光学组织之间的关系,并对煤岩配煤的前景进行展望。煤岩配煤理论主要包括煤的不均一性、煤中活性组分质量的差异性、惰性组分的不可或缺性。国外应用较好的煤岩配煤方法为夏皮洛法,适用性强,相关系数达0.93;国内的叶道敏煤岩配煤方法相关系数达到0.98。镜质组反射率与焦炭显微结构之间存在着定性关系,煤中镜质组与焦炭光学组织关系密切,直接影响焦炭光学组织的类型和各向同性与各向异性的比例,最终影响焦炭质量。

To improve efficiency of traditional coal blending method,the theoretical basis of blending based on coal petrology was explainedby mechanism of coke formation. The relationship between coal petrology indicators and coke optical texture was analyzed. Some typi-cal methods of blending based on coal petrology were compared. A better method overseas,Schapiro＇s coal-petrography-based blendingtechnology had good applicability,and the related coefficient was up to 0. 93. In domestic,many researchers had made a lot of experimentalstudies,and some related coefficient could be up to 0. 98. Some coal petrology indicators directly affected the formation of coke optical tex-ture,thus affected the quality of the coke. Using the coal petrology was a breakthrough in the process of coal blending. The research playeda decisive role in coke quality prediction.