Classifier rudder control vane

Details Classifier rudder control vane Classifier rudder control vane

B - Operations, Transporting

04

C

209/60

B04C 5/103 (2006.01) B02C 15/04 (2006.01) B07B 7/08 (2006.01) B07B 11/04 (2006.01) F23K 1/00 (2006.01) B02C 15/00 (2006.01)

Patent

CA 1225965

ABSTRACT OF THE DISCLOSURE A particle classifier apparatus and method for separating coarse particles from a mixture of particles carried in a gas stream, for preferred use in combination with a coal crushing mill. In the classifier, the gas-solids stream is passed through a plurality of internal fixed vanes for imparting a rotational motion of the particles. The rotating gas-solids stream then flows past at least three pivotable deflector vanes located entirely within the rotating gas-solids stream for effectively separating the larger size particles from the smaller particles. The smaller particles are then carried upwardly by the air stream, such as coal particles into a combustion zone of a boiler, while the larger size particles are returned downwardly, such as to a crusher for further size reduction and for recycling the parti- cles through the classifier.

443036

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