样品粒度对胶质层指数测定结果的影响  

The effect of sample particle size on the results of the plastometric index

作　　者：陈希 陈慧珠 CHEN Xi;CHEN Hui-zhu(China Coal Research Institute;China National Coal Quality Supervision and Testing Center;CCRI(Tianjin)Coal Testing Co.,Ltd.,Beijing 100013,China)

机构地区：[1]煤炭科学技术研究院有限公司 [2]国家煤炭质量检验检测中心 [3]煤科(天津)煤炭检测有限公司,北京100013

出　　处：《煤炭加工与综合利用》2024年第8期89-93,共5页Coal Processing & Comprehensive Utilization

基　　金：天地科技股份有限公司科技创新创业资金专项国际合作项目(项目编号2020-2-TD-GJHZ001)。

摘　　要：通过试验研究小于1.4 mm、小于1.5 mm、小于1.6 mm煤样的胶质层指数的变化规律,发现总体上小于1.4 mm煤样的胶质层最大厚度Y值小于1.5 mm煤样,小于1.5 mm煤样的胶质层最大厚度Y值小于1.6 mm煤样;小于1.5 mm和小于1.4 mm煤样的最终收缩度X值测定结果无显著性差异且均大于小于1.6 mm煤样。研究表明,小于1.5 mm胶质层指数样品的粒度分布基本服从罗辛—拉姆勒(R-R分布)和盖茨-高登-舒兹曼(GGS)分布,可以用这2种分布中的特征参数来表征胶质层指数样品粒度特征;建立小于1.5 mm测定胶质层指数煤样的数学模型,有助于提升胶质层指数样品制备质量,提高胶质层指数测定方法的精密度。Through the experimental study of the change rule of the plastic layer index of coal samples less than 1.4 mm,less than 1.5 mm and less than 1.6 mm,it is found that the maximum thickness of the plastic layer Y value of coal samples less than 1.4 mm is less than 1.5 mm,and the maximum thickness of the plastic layer layer Y value of coal samples less than 1.5 mm is less than 1.6 mm.The final shrinkage X value of coal samples less than 1.5 mm and less than 1.4 mm has no significant difference and is greater than that of coal samples less than 1.6 mm.The results show that the particle size distribution of the coal samples less than 1.5 mm basically follows the Rosion--Ramler(R-R)distribution and Gates-Gaudin-Shuzman(GGS)distribution,and the characteristic parameters of the two distributions can be used to characterize the particle size characteristics of the coal samples less than 1.5 mm.The establishment of a mathematical model for the determination of coal samples with coal plastic layer index of less than 1.5 mm is helpful to improve the preparation quality of coal plastic layer index samples and improve the precision of the measurement method of plastic layer index.

关 键 词：样品粒度 胶质层指数 胶质层最大厚度 测定结果 

分 类 号：TQ533[化学工程—煤化学工程]