Patent ID: 8029601

Claim:
A method for the separation of particles from a flow of gas, comprising: charging the particles in the flow of gas in an ionization step after which the flow of gas with the charged particles is caused to flow through a plurality of gaps between plate-shaped sedimentation surface elements of a rotating rotor in a centrifugal separator, wherein an electric voltage of a first potential is applied to a one of two opposite surface layers of adjacent sedimentation surface elements, said first potential differing from a second potential of the other, opposite surface layer, so that the particles passing through the gaps are caused to deposit on an inwardly facing surface layer of the sedimentation surface elements by a combined action of centrifugal forces and electrostatic attraction forces, after which the particles deposited on the sedimentation surface elements are caused to flow out towards the periphery of the sedimentation surface elements and from there thrown towards the inside of a surrounding, stationary casing, the particles that have been trapped on the inside of the casing and the gas that have been cleaned of particles are led out from the casing through separate outlets in the casing.