焦炭热性质相同的焦煤煤质特性研究

Research on quality characteristics of coking coal with the same thermal properties

选取蒙古国、加拿大、澳大利亚3个国家的部分焦煤作为研究对象,对比研究了焦炭热性质相同的焦煤的煤质特性。研究表明:对于焦炭热性质相同的焦煤,其煤质特性指标及其焦炭光学组织指标可能接近也可能存在明显差别,而煤变质程度、黏结性、灰成分及焦炭光学组织指标与焦炭热性质之间无明显关系,可见现有煤质评价指标难以科学判断炼焦煤炼焦的焦炭热性质情况。

Some coking coal from Mongolia, Canada and Australia were selected as the research objects, the coal quality characteristics of the coking coal with the same thermal properties were compared and researched. The research showed that, for the coking coal with the same thermal properties, the quality characteristics and indicators of coke optical tissue could be approximate or different obviously, but in the fact, there is no significant relationship between the coke thermal properties and the properties like coal metamorphism degree, caking property, ash composition and coke optical tissue index, therefore, the existing coal quality indicators could not scientifically judge the coke thermal properties of coking coal when coking.