抄録
We are under development of collecting the fly ash under high-temperature flue gas condition. The experiment was performed mainly to check for the dust collection efficiency under high-temperature condition as well as for clogged filter under continuous operation condition. Results obtained through the experiment are as follows; 1) The pressure loss of filter was changed within the range of 1.37kPa∿1.72kPa during the operation of one week, which assured the stabilized operation. 2) The concentration of dust at the outlet of Hot Gas Filter was 0.042/m^3_N, and the dust collection efficiency was approx. 99.5%. 3) The concentration of dioxins contained in the ash collected by the Hot Gas filter was 0.0004ng-TEQ/g. The concentration of dioxins at the outlet of Hot Gas Filter was observed to be decreased down to 0.064ng-TEQ/m^3_N, whereas that at its inlet was 0.24ng-TEQ/m^3_N, which made it possible to confirm that the dioxins would be dissolved by passing them through the Hot Gas Filter.
