Device comprising a centrifugal separator and a method for cleaning of a gas

A device comprising a centrifugal separator for cleaning of a gas, wherein the centrifugal separator comprises:

• a stationary casing, which encloses a separation space and permits the gas to flow therethrough,
• an inlet channel, which extends to the separation space and forms an inlet to the separation space for a gas flow of the gas to be cleaned,
• a rotating member, which is provided in the separation space downstream of the inlet with regard to the gas flow and arranged to rotate in a direction of rotation about an axis of rotation, wherein the rotating member comprises a plurality of separation discs and is adapted to bring the gas to rotate in the direction of rotation for separating by means of centrifugal forces at least a main part of the impurities from the gas,
• a gas outlet channel, which with regard to the gas flow is provided downstream of the rotating member for discharging the cleaned gas,
• at least a first outlet, which is provided for discharging a separated phase of the gas from the separation space,
• a supply member, which is configured to permit supply of a liquid in the form of an aerosol to be supplied to the gas to be cleaned and which comprises a supply conduit with an outlet end,
• wherein the supply member comprises an ejector nozzle connectable to a pressurized gas conduit and comprising a nozzle outlet, and wherein the nozzle outlet is provided at the outlet end of the supply conduit and arranged to permit ejection of the liquid in the form of said aerosol from the outlet end of the supply conduit by means of the pressurised gas supplied to the ejector nozzle and the nozzle outlet.