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.
出处
《煤质技术》
2017年第4期54-56,共3页
Coal Quality Technology
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
rapid ashing method
slow ashing method
test error
mathematical statistical analysis
confidence interval
