Method and apparatus for production of extremely fine powder

Details Method and apparatus for production of extremely fine powder Method and apparatus for production of extremely fine powder

1997-12-05

1999-11-16

Rosenbaum, Mark

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

241 21, 241 29, 241 791, 2411522, 34329, 34368, 34586, B02C 2320

Patent

active

059842121

ABSTRACT:
A method and apparatus for the manufacture of extremely fine powders, which are ground wet in a mechanical grinder (1) and are subsequently dried. To obtain extremely fine sizes, the powders are ground wet as components of a suspension in the mechanical grinders. An air vortex grinder (4) is used as a dryer to obtain maximum agglomeration-free drying of the powders. The dried powder leaves the drying chamber (5) of the air vortex grinder (4) through an upper product discharge (8) and is fed through a line (9) to a filter cyclone (11). The suspension leaves the mechanical grinder (1) and is blown into the drying chamber (5) of the dryer (4).

REFERENCES:
patent: 3797758 (1974-03-01), Cherdron et al.
patent: 4505432 (1985-03-01), Koev et al.
patent: 4747550 (1988-05-01), Jackering
patent: 4852811 (1989-08-01), Adams et al.
patent: 5096744 (1992-03-01), Takei et al.
patent: 5520340 (1996-05-01), Krockert et al.

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