4.3 export to absorption tower of induced draft fan inlet ductA) induced draft fan outlet flue and at right angles to the main flue connection arc-shaped modification (programme)
4.3 draft fan outlet to the inlet flue absorber a) the draft fan outlet cigarettes Road and the main flue were rectangular arc-shaped junction reconstruction (Option One)
4.3 draft fan outlet to absorber inlet flueA (fan) outlet outlet flue and the main flue at the right corner of the circular arc transformation (program 1)