Patent ID: 6589306
Filing Date: 2003-07-08
Classification: B01D,B04C,F26B

Abstract:
Centrifugal separator apparatus for removing particulate material entrained in an air stream, said separator comprising:a separator drum having wall structure defining a generally horizontally disposed chamber; said drum having first, second and third air flow openings communicating with the chamber, at least one of said air flow openings being functional as an inlet for a particulate material bearing air stream and at least one of the other of the openings being functional as an outlet for air from which, a significant proportion of the particulate material entering the drum through an air inlet has been removed; and a pair of drum chamber divider members, each of said divider members having an aperture therein, one of said divider members being positioned in the chamber in spanning relationship to the drum wall structure and intercommunicating a first and a second air flow opening and the other divider member being positioned in the chamber in spanning relationship to the drum wall structure and intercommunicating a second and a third air flow opening, said divider members further being positioned in the drum chamber in spaced relationship one from the other with the apertures therein in intercommunication, whereby particulate material entrained in an air stream directed into the chamber through an air inlet is displaced from the air stream as the latter flows through the chamber to an air outlet opening via the apertures in respective divider members, said drum being provided with a particulate material delivery opening positioned to allow particulate material displaced from the air stream to be discharged from the drum chamber, said wall structure of the separator drum having a curvilinear inner surface presenting a spiral air flow path from an air inlet opening to an air outlet opening via the aperture in a corresponding divider member therebetween.