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从宏观和微观两方面对不同变质程度煤所形成焦炭的结构、构造进行了深入研究。从气煤到肥煤阶段（Ｒｏ，ｍ：０．７７％～１．１６％），焦炭气孔壁厚度逐渐增大；进入焦煤阶段（Ｒｏ，ｍ＞１．１６％），焦炭气孔壁厚度降低。气煤、１３焦煤形成的焦炭结构以各向同性体为主，焦煤、肥煤炼出的焦炭以粒状镶嵌结构为主。由气煤和高变质程度的焦煤形成的焦炭，其气孔以微孔和大孔为主，气孔分布标准差Ｄｓ最大；肥煤炼出的焦炭，其气孔分布大小较均一；１３焦煤和低变质程度的焦煤成焦后，气孔分布状况介于上述二者之间
From the macroscopic and microscopic aspects, the structures and structures of coke formed by coal of different metamorphism degree are studied in depth. The coke stomatal wall thickness gradually increased from gas coal to fat coal (Ro, m: 0.77% -1.16%). When entering the coking coal stage (Ro, m> 1.16%), the coke stomatal wall thickness decreased . The coke structure formed by gas coal and 13 coking coal is mainly isotropic, while the coking coal and fat coal are mainly composed of granular inlay structure. The coke formed by gas coal and coking coal with high degree of metamorphism is dominated by micropores and macropores, and the standard deviation of stomatal distribution Ds is the largest. The coke distributed by the fat coal is more uniform in stomatal distribution. The coke with 13 coking coal and low metamorphism The degree of coking coal into coke, stomatal distribution between the above two