【摘要】 针对近年来我国电力用煤持续紧张、电煤质量持续下降的情况,指出商品煤样的采取是煤质检验工作的关键所在,并结合工作实际对商品煤样采取中涉及的采样精密度、无采样偏差的参比方法、全水分的采取与留存、机械采样装置的使用等几个方面问题进行了研究和探讨。更多还原

【Abstract】 Considering the continuing supply tension and quality drop of coal used for power generation in China in recent years,the authors indicate that commercial coal sampling is the key to coal quality checking.Combined with practical experiences,noticeable problems in commercial coal sampling are researched,which include the sampling precision,the reference method of non-deviation sampling,the adoption and subsistence of total moisture,and the use of mechanical sampling equipment,etc.更多还原