Vertical type pulverizing and classifying apparatus

Details Vertical type pulverizing and classifying apparatus Vertical type pulverizing and classifying apparatus

1984-02-10

1985-11-05

Rosenbaum, Mark

Solid material comminution or disintegration

Apparatus

Including means applying fluid to material

241 80, 241 97, B02C 2332

Patent

active

045508798

ABSTRACT:
The invention provides an improved vertical type pulverizing and classifying apparatus comprising a lower, pulverizing chamber and an upper, classifying chamber, wherein a material under treatment is carried by gas streams. The disclosed apparatus includes a conduit between the pulverizing chamber and the classifying chamber for sending particles of the material emerging from a primary classification to the classifying chamber for a secondary classification. A floating chamber is provided circumferentially of the conduit to receive particles descending from the classifying chamber for a further classification, whereby resulting fine particles are blown back to the classifying chamber and coarse particles are returned to the pulverizing chamber by way of a material feeder.

REFERENCES:
patent: 3071330 (1963-01-01), Jackering
patent: 3285523 (1966-11-01), Duyckinck et al.
patent: 4451005 (1984-05-01), Urayama

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