Dust Collector Design and Safety

This paper presents fundamental dust collector principles and how they apply to practical design features included in modern dust collector design. In applications where the dust is combustible, as in coal handling and pulverizing operations, special design features must be incorporated. The recent 2007 edition of the National Fire Protection Association NFPA 85 - Boiler And Combustion System Hazards Code has brought a renewed interest in the safety features of solid fuel pulverizing and firing systems. The updated code requirements for dust collectors used in indirect firing systems is discussed along with requirements for inerting the dust collector in the event of a suspected fire.