Fabric-Filter Design for Application in the Fluidized-Bed Combustion of Coal

摘要

Various emission control devices, for FBC installations using a variety of fuels, are reviewed. These devices include scrubbers, electrostatic precipitators, granular beds, cleanable high efficiency air filters and baghouses. Dust filtration tests conducted at the Georgetown University FBC are described. Bagfilter cleaning techniques are compared. Special blinding problems peculiar to Georgetown but applicable to other FBC's with bagfilters are described. Several fabrics and finishes are compared and selection criteria are developed. Guidelines are presented for selection of baghouse design parameters. Baghouse operating procedures to prevent blinding and to maintain low baghouse pressure drop are stated. Testing procedures for optimizing baghouse performance are suggested. An extensive section for trouble-shooting prevalent baghouse problems is included. Finally, areas for further research and development are identified. (ERA citation 07:056723)