Centrifugal separator for cleaning gases

A centrifugal separator device ( 10 ) for separating solid and/or liquid particles which are suspended in gas media, which device comprises a rotor ( 12 ) which is provided sedimentation members ( 14 ), which is rotatably mounted in a surrounding stationary housing ( 20 ) and which has a central inlet for the gas medium which is to be cleaned. The housing ( 20 ) has, on the one hand, an outlet ( 32 ) for cleaned gas which, during its passage through the sedimentation members ( 14 ) in the rotor ( 12 ), has been freed form solid and/or liquid particles, and, on the other hand, an outlet ( 28 a-c) for solid and/or liquid particles which have been transferred onto the inner side of the housing. A number of parallel guide rails ( 26 ), which run helically, are arranged on the inner side of the housing and extends axially at least over a major part of the length of the rotor ( 12 ), and the outlet ( 32 ) in the housing for cleaning gas is located, with respect to the axis, at one end of the rotor ( 12 ) while the outlet ( 28 a-c 9 for the particles which have been collected on the housing wall is located at the opposite axial end of the rotor. The guide rails ( 26 ) are arranged in a direction on the inner side of the housing in relation to the direction of rotation of the rotor which is such that a peripherally outer of a gas vortex generated by the rotor is forced to entrain the particles which have been collected between the guide rails toward the particles outlet.