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为了考察煤的显微组分与比表面积之间的关系,采用理论分析、实验室实验及数据分析的方法,获得了煤的显微构成及比表面积值,利用综合评价的方法揭示出两者之间的关系.研究结果表明,对煤比表面积起主要作用的是基质镜质体、半丝质体、粗粒体和微粒体,其中基质镜质体以大孔为主,与煤比表面积呈负相关关系,半丝质体和粗粒体褐煤时以大孔为主,气煤时以微孔为主,微粒体以微孔为主,与煤比表面积呈正相关关系;综合评价法适合研究煤的显微组分与比表面积的关系,为测量煤比表面积节约了大量的时间及成本,对进行矿山开采及煤炭研究具有重要意义.
In order to investigate the relationship between the microstructure and specific surface area of coal, the microstructure and specific surface area of coal were obtained by theoretical analysis, laboratory experiments and data analysis. The comprehensive evaluation method was used to reveal both The results show that the main surface area of coal play a major role in the matrix vitrinite, semi-silk body, coarse and microscopic bodies, in which the main vitrinite matrix macropores, and the specific surface area of coal There was a negative correlation between the semi-filamentous body and coarse-grained lignite with macropores, while the gas-coal was dominated by micropores. The micropores were mainly micropores, which was positively correlated with the specific surface area of coal. The comprehensive evaluation method was suitable Studying the relationship between the micro-components and the specific surface area of coal has saved a great deal of time and cost in measuring the specific surface area of coal, which is of great significance for mine exploitation and coal research.