Desulphurization technology research in horizontal flue with double-layer sieve plates

In order to determine the feasibility of install desulfurization equipment in horizontal flue, the sieve plates of double-layer structure were chosen and tested in the experiments. The optimal combination of different geometry size sieve and experimental conditions was obtained. The influence of the ratio of calcium to sulfur and liquid to gas, pH value of absorbing liquid on desulfurization efficiency was studied. The system operating mode was determined. Using the horizontal flue between electrostatic precipitator and chimney as desulfurization equipment, other absorption equipment was not added. The cost of project investment was reduced, and the operation simple, place saved. So it was suitable for medium-small coal-fired power plant in application development. In the optima operating conditions, dust removal efficiency was 99.7%, desulfurization efficiency 94% on average.