对重液分选高灰极细粒煤(如干法脱除的煤粉)并由此获得低灰产品的可能性进行了试验。试验是采用试验室用直径50mm的旋流器进行的,目的是了解小于0.8mm极细粒煤的分选情况。试验中对旋流器的操作参数和几何结构进行了调整。 Experiments have been conducted on heavy liquor sorting of high ash, very fine coal, such as dry coal, and thus the possibility of obtaining low ash products. The test was conducted in a laboratory using a cyclone with a diameter of 50 mm in order to understand the sorting of very fine coal less than 0.8 mm. In the experiment, the operating parameters and geometry of the cyclone were adjusted.