Particle classifier apparatus and method with rudder control van

Details Particle classifier apparatus and method with rudder control van Particle classifier apparatus and method with rudder control van

1982-12-13

1985-03-12

Lutter, Frank W.

Solid material comminution or disintegration

Apparatus

Including means applying fluid to material

241 791, 209144, B04C 5103

Patent

active

045040184

ABSTRACT:
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 upper angled fixed vanes for imparting a rotational motion to the particles. The rotating gas-solids stream then flows downwardly past 3-6 pivotable deflector vanes located entirely within the rotating gas-solids stream for effectively separating the larger size particles in the gas stream from the smaller particles. The smaller particles are then carried upwardly by the gas stream, such as coal particles carried by an air stream 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 particles through the classifier.

REFERENCES:
patent: 778452 (1904-12-01), Hitzel
patent: 2100734 (1937-11-01), Crites
patent: 2368961 (1945-02-01), Arnold
patent: 2806551 (1957-09-01), Heinrich
patent: 2868462 (1959-01-01), Bogot et al.
patent: 3098036 (1963-07-01), Neumann

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