Cyclone dust separator, the first unit of flue gas treatment system, is installed at the outlet of boiler economizer to collect the suspended particulates inside the flue gas.
2 sets of 100% capacity cyclone separator are provided for flue gas handling in order to avoid shutdown of that unit due to clogging of gas ducts.
Fabric filter baghouse system, is installed at the last portion of flue gas treatment system. Flue gases are firstly treated by cyclone separator, and then its acidic components are eliminated through the semi-dry scrubber, with temperature dropped, and enter baghouse to rid off its particulates.
The flue gas after treatment is released to open air within the emission limits.
To prevent the dissolved dioxin components from recomposing back to life due to temperature drop, an activated carbon injection unit is installed to adsorb heavy metals and dioxins by its porous nature, resulting in a clean air treatment.