Pneumatic pulverizer and process for producing toner

Details Pneumatic pulverizer and process for producing toner Pneumatic pulverizer and process for producing toner

1994-01-19

1994-10-25

Jones, Eugenia

Solid material comminution or disintegration

Processes

By utilizing kinetic energy of projected or suspended material

241 24, 241 40, B02C 1906

Patent

active

053581830

ABSTRACT:
A pneumatic pulverizer includes an accelerating tube for conveying and accelerating a material to be pulverlized by a high-pressure gas and a pulverizing chamber for finely pulverizing the material to be pulverized. The pulverizing chamber is provided with a colliding member having a colliding surface provided in opposed relation to an outlet of the accelerating tube. The colliding surface of the colliding member has a protruding central portion, and an outer peripheral colliding surface provided around the protruding central portion for secondarily pulverizing the material primarily pulverized by the protruding central portion. The pulverizing chamber has a side wall for performing tertiary pulverization on the material secondarily pulverized by the outer peripheral colliding surface.

REFERENCES:
patent: 4529135 (1985-07-01), Urayama
patent: 4930707 (1990-06-01), Oshiro et al.
patent: 5086982 (1992-02-01), Hirano et al.
patent: 5111998 (1992-05-01), Kanda et al.

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