目前国内选煤厂测量洗精煤产品的全水分,都是使用烘干重量法.这种方法需要化验人员将煤样进行搅拌、缩分、天平称量两次、预烘于、烘干等一系列复杂操作,而且所需设备多而庞大(包括烘箱、称量天平、称量盘等设备).根据国际标准的规定,作一个精煤全水分测定,需要80min的时间.多 At present, the coal preparation plant in China measures the total moisture content of clean coal products by using the dry weight method, which requires the laboratory technicians to sample the coal sample for mixing, shrinkage and weighing twice, prebaking, drying and so on. A series of complex operations, and the required equipment and large and large (including oven, weighing balance, weighing plate and other equipment.) According to the provisions of international standards, make a clean coal moisture determination, takes 80min time.