摘要
为更准确地定量描述不同变质程度煤镜质组的相对活性质量差异,考察14种单煤添加不同比例惰性物测定的表观黏结指数G'值随镜质组含量的变化规律。研究表明,G'值对镜质组含量的线性关系显著,采用拟合出的线性方程的斜率倒数1/k作为考察镜质组活性质量的指标,可排除各单煤镜质组含量差异的干扰,更准确地揭示了不同变质程度煤镜质组活性质量的变化规律。论证了筛选出的高斯曲线模型是描述不同变质程度煤镜质组活性变化规律的最优模型,据此给出了不同变质程度煤镜质组相对活性质量。
To quantitatively describe the vitrinite relative active quality difference of different metamorphic degree coals more accurately, the rule that apparent caking index G＇ value determinated by adding different proportion inert content to 14 kinds of single coals changes with vitrinite content were investigated. The research shows that G＇ value and vit- finite content have significant linear relationship. Employing the reciprocal of the slope of linear fitting equation as the index to investigate vitfinite active quality can eliminate the interference of vitrinite content difference of every single coals and more accurately reveal the vitrinite active quality changing rule of different metamorphic degree coals. That the Gaussian curve model is the optimization model to describe coal vitrinite activity quality of different metamorphic degree has been demonstrated. On this basis, coal vitrinite relatively active quality of different metamorphic degree were provided, which lays a foundation to investigate the influence of coking blending caused by vitrinite quality differ- ences.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2013年第10期1862-1867,共6页
Journal of China Coal Society
关键词
镜质组
变质程度
表观黏结指数
活性质量
vitrinite
metamorphic degree
apparent caking index
active quality
