Discussion on the quality control scheme in the process of coal quality testing
Coal sampling,sample preparation and laboratory testing are three important steps in coal quality testing.In order to ensure the accuracy of coal quality testing laboratory test results,strict quality control should be carried out on these steps.In the laboratory quality control,there are some problems,such as insufficient technical training of testing personnel and large error of testing results.From strengthening the technical training of testing personnel,strengthening the management of sampling equipment and testing equipment,regular verification during the development of testing equipment,classification and identification of instruments and equipment,strengthening the control of the environmental conditions of the work site,strengthening the control of the selection of coal quality testing methods,strengthening the control of the errors of each link of mining,and correctly using the retest results of storage samples for analysis and judgment In this paper,the quality control scheme in the coal quality testing process is expounded,and the control of the testing process is the fundamental of the quality control of the coal quality testing laboratory.
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