On the basis of summarizing the characteristics and development status of the dust collector, combined with the principle and structure of the pulse bag filter, this design analyzes and calculates the overall framework of the pulse bag filter, which includes the upper and lower sealed boxes, pillars, ash hoppers, etc. At the same time, the equipment for cleaning the collected dust and other collected materials is designed. The ash unloading device is a discharger. The discharger is composed of a six blade