Abstract:At present, dry dust collection in nonferrous metallurgy industry is mainly based on bag dust collector. Application of low-pressure pulse rotary back blowing bag dust collector in concentrate drying and rotary kiln desulfurization drying dust collection under poor dust conditions was introduced. Through transformation and comparison, it is concluded that the low-pressure pulse rotary back blowing bag dust collector has the advantages of small space occupation, little operation and maintenance, low operation cost and long service life.