Abstract
The wedge collectors of simple design based on the venturi principle were developed and used in a circulating fluidized bed boiler at the flue path to determine the dust removal efficiency in the exit gas. The efficiency of the collectors was compared with those of other types of mechanical collectors. The impact on the dust collection efficiency of the collectors due to increase in the ash content of coal, fluctuation of operational conditions including exit gas velocity, particle size, etc. is described. Optimization of the performance of wedge collectors with respect to operational conditions has been illustrated. Economy, operational achievements, applications, and limitations in the use of wedge collectors for dust control in gas-solid interface are discussed.
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