Patent ID: 6821319
Filing Date: 2004-11-23
Classification: B01D,B04B,F01M,Y10S

Abstract:
A method of cleaning a gas from solid or liquid particles suspended therein and having a larger density than the gas, whereina rotor is kept rotating around a rotational axis in a chamber, that is delimited by a stationary surrounding wall, said rotor comprising a stack of conical separation discs arranged coaxially with each other and concentrically with said rotational axis and being provided with radially outer surrounding edges, the gas to be cleaned is conducted through interspaces formed between the separation discs from gas inlets to gas outlets situated at different distances from the rotational axis of the rotor, so that the gas is caused to rotate with the rotor and the particles, thereby, as a consequence of upcoming centrifugal force are brought into contact with the insides of the separation discs, and separated particles by the rotation of the rotor are first brought to move a distance in contact with the separation discs substantially along generatrices thereof towards said surrounding edges and after that are caught and conducted, together with other particles caught in a similar way, further towards said surrounding edges of the separation discs along paths forming an angle with said generatrices, wherein that separated particles are caused to leave said paths and be thrown from the separation discs directly out into said chamber delimited by the stationary surrounding wall substantially only in limited areas situated at a distance from each other along the surrounding edges of the respective separation discs.