As an indispensable part in the process of coal sample preparation,mixing and dividing machine greatly reduces the cumbersome operation and labor intensity in the sample preparation process.In order to verify whether the performance of the 13 mm mixed classifier can meet the relevant requirements specified in the national standard GB/T474-2008 coal sample preparation method,the ash precision and ash bias of the 13 mm mixed classifier were determined according to the national standard GB/T19494.3-2004 mechanized coal sampling part 3:precision determination and bias test.The statistical analysis of all test data shows that the precision of the 13 mm hybrid dividing machine meets the requirements,and there is no bias in the dividing.
维普
万方数据