浮选精煤和尾煤的快灰与慢灰检验误差分析  

Error analysis of rapid and slow ashing tests for flotation fine coal and the tail coal

作　　者：庄严 刘丽萍 王娜 陈清 王蕾 

机构地区：[1]枣庄矿业(集团)有限责任公司煤质管理处,山东枣庄277000 [2]山东省三河口矿业有限责任公司,山东济宁277605

出　　处：《煤质技术》2017年第4期54-56,共3页Coal Quality Technology

摘　　要：采取浮选精煤和尾煤各20个样品分别用煤炭快速灰化法和缓慢灰化法进行单次测定试验,并对其实验测定结果进行数理统计分析。分析结果表明,精煤和尾矿灰分结果的t检验无显著性差异,差值的置信区间范围较小,即煤炭灰分快速灰化法可满足技术比武考核和快速检查的需要。Taking 20 coal samples from flotation fine coal and tail coal respectively, the rapid ashing method and slow ashing method were used to do the single test, the mathematical statistics analysis of the results of experiments was done as well. The results showed that, there was no significant difference between t inspections of clean coal and tail coal, the confidence interval range of difference was relatively small, the rapid ashing method of coal ash could meet the requirements of technology contest assessment and rapid inspection.

关 键 词：快速灰化法 缓慢灰化法 检验误差 数理统计分析 置信区间 

分 类 号：TQ533.2[化学工程—煤化学工程]