Dry grinding system and dry grinding method

Details Dry grinding system and dry grinding method Dry grinding system and dry grinding method

2007-09-04

2007-09-04

Rosenbaum, Mark (Department: 3725)

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

C241S024140, C241S024150, C241S080000

Reexamination Certificate

active

11449655

ABSTRACT:
The invention provides a dry grinding system including grinding means for dry-grinding a material to be ground; first classification means for classifying a ground product obtained through the grinding means, into fine powder having a relatively small average particle size and coarse powder having a relatively large average particle size; second classification means for further classifying the coarse powder obtained through the first classification means, into find powder having a relatively small average particle size and coarse powder having a relatively large average particle size; and returning means for returning to the grinding means the coarse powder obtained through the second classification means. The invention enables production of a powder product having a desired average particle size at high efficiency.

REFERENCES:
patent: 05-038464 (1993-02-01), None
patent: 05-330819 (1993-12-01), None
patent: 06-313990 (1994-11-01), None
patent: 07-092735 (1995-04-01), None
patent: 11-015195 (1999-01-01), None

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