... plant. In order to recover the gas whose temperature is 550900, we developed double(sing) Drum Natural Circulating Widthwise Layot Water ... Slag Screen, Superheater, Convection Bank and Economizer, then it is discharged. After that, it enters the Divce Of Desulphurization ... the features of high efficiency, small occupation, novel structure, lost cost, energy saving, environment friendly and so on, so ...