炼焦煤镜质组反射率直方图及其加和性  

Vitrinite reflectance distribution of coking coal and its additivity

作　　者：张磊[1] 刘文礼[1] 门东坡[1] 赵吉莉[1] 

机构地区：[1]中国矿业大学(北京)化学与环境工程学院,北京100083

出　　处：《辽宁工程技术大学学报（自然科学版）》2013年第7期905-910,共6页Journal of Liaoning Technical University (Natural Science)

基　　金：中央高校基本科研业务费基金资助项目(2010YH11)

摘　　要：为研究炼焦单种煤镜质组反射率直方图以及配合煤镜质组反射率直方图的可加和性.选取开滦矿区不同矿井、不同煤层、不同变质程度的5种炼焦单种煤为研究对象,采用偏光显微镜Leica DM4500P和光度计Deta V4000对5种单种煤和不同单种煤在不同配比下的配合煤的镜质组反射率直方图进行研究.结果表明:单种煤镜质组反射率直方图服从正态分布.对比了不同配合煤的镜质组反射率直方图均值及标准差的实测值和拟合值,显著性假设检验结果表明,配合煤镜质组反射率直方图具有分段、分区间可加和性,其分布直方图可由加和性原则拟合计算,且区间越小,拟合结果越准确.To investigate vitrinite reflectance distribution of single coking coal and vitrinite reflectance distribution additivity of blending coal,five typical coking coal samples in Kailuan coalfield were selected.Vitrinite reflectance distribution of five single coal samples and their blending coal samples with different ratios was studied using Leica DM4500P and Deta V4000.The result of study indicates that vitrinite reflectance distribution of single coking coal sample obeys normal distribution.Comparisons of measured value and calculated value of average value and standard deviation of blending coal samples were made,and the results of significance hypothesis test show that section-section additivity principle of vitrinite reflectance distribution of blending coal samples is gained;and also,the less in section of reflectance,the better in accuracy of fitting results.

关 键 词：炼焦煤 镜质组 反射率 直方图 正态分布 配煤 分段分区间 加和性原则 

分 类 号：N5[自然科学总论]