By investigation found that our existing methods of dust spray equipment and the dust is the common problem of dust control efficiency is not high, respirable dust and dust all settlement rate is low.

• 本文通过调研发现,我国现有的喷雾降尘方法和降尘设备普遍存在的问题是降尘效率不高,呼吸性粉尘和全尘的沉降率低。