摘要：阐述了袋式除尘机理中，粉尘过滤粉尘的重要性，着重介绍了一种创新的人造粉尘初层的预容尘技术。

关键词：袋式除尘;人造粉尘初层;预容尘技术;

Abstract：The importance of the dust filtrated by dust in the mechanism of bag - type collection was described, and the new technique of preset dust of initial layer of artificial dust was introdced emphatically.

Key words：bag - type collection;initial layer of artificial dust;technique of preset dust