A PILOT-SCALE STUDY OF THE DESIGN AND OPERATION PARAMETERS OF A PULSE-JET BAGHOUSE

Filtration curves and pulse-jet cleaning performance of different desi gn and operating conditions of a pilot-scale pulse-jet baghouse are in vestigated. The effective residual pressure loss is used as an index o f bag cleaning effect, while the average pulse overpressure inside the bag is used as an index of bag cleaning intensity. It is found that f iltration curves vary with the initial tank pressure and the nozzle di ameter of the bag cleaning system. The filtration time increases with increasing initial tank pressure or nozzle diameter. However, a critic al value of the tank pressure exists for an effective bag cleaning. It is also found that a critical effective residual pressure loss value exists for the pulse-jet cleaning system. Too large an initial tank pr essure and nozzle diameter result in a waste of cleaning energy. The a ddition of a venturi increases the average pulse overpressure apprecia bly, hence increasing the cleaning effect. A venturi is suggested to b e installed to increase the bag cleaning effect and maximize cleaning energy in this study. (C) 1998 American Association for Aerosol Resear ch.