| 摘要 |
A suction device for the wet extraction of dust from dust laden gas comprises a centrifugal rotor housed in a casing and rotatable about an axis, and means for projecting a wetting liquid into the rotor adjacent the gas inlet thereto, the rotor being provided with at least two sets of blades, the blades of each set being uniformly arranged in a crown and forming channels with at least one of the sidechecks of the rotor in which gas flows from the center towards the periphery, the leading and trailing edges respectively of the blades of the first set being located closer to the axis of the runner than the leading and trailing edges respectively of the blades of the second set, the leading edges of the blades of the first set being located near to but angularly spaced from the trailing edges of the blades of the second set. |
