从理论上分析了潮湿细粒煤团聚的基本行为以及筛分过程的堵孔机理 .研究表明 ,潮湿细泥堵塞筛孔的过程主要分 2个阶段 :首先是细泥粘附于筛丝上 ,降低有效筛分面积 ;其次是结团细泥在筛丝上形成覆盖膜 .通过中试实验得出 ,琴弦式弹性筛面具有很好的自清洗能力 ,筛网不易堵塞 ,而且筛分效率高 . The basic behavior of agglomeration of wet fines and the plugging mechanism of the sieving process are analyzed theoretically.The results show that the process of clogging the sieve with wet slime is mainly divided into two stages: the first is that the slime adheres to the screen wire, Reduce the effective screening area, followed by the formation of a group of fine mud on the screen wire to form a cover film.From the pilot test, the string elastic screen surface has a good self-cleaning ability, the screen is not easy to plug, and the screening efficiency High.