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DEVELOPMENT OF SUPERIOR ENTRAINMENT SEPARATORS
Citation:
Calvert, S. AND H. Barbarika. DEVELOPMENT OF SUPERIOR ENTRAINMENT SEPARATORS. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/7-79/180.
Description:
An experimental and theoretical program was carried out to develop an improved design for entrainment separators for scrubbers. The problems of separation efficiency, suspended solids deposition and plugging of the entrainment separator were of primary concern. A pilot scale entrainment separator (E.S.) coupled to a scrubber and designed to handle a nominal gas flow rate of 1.4 cu m/s (3,000 ACFM) was designed, built and tested. Vertical discontinuous, zigzag baffles was the E.S. design selected after a review of both theory and practical experience with slurry scrubbers. The effect of E.S. performance on particulate emissions of a typical fossil-fueled boiler was evaluated. The experimental program included measurements of entrainment size distribution and loading, entrainment collection efficiency, solids deposition character and rate, and E.S. washing efficiency. Results were compared with available models and new criteria for effective washing were developed.