Agitator mill

Details Agitator mill Agitator mill

2011-08-23

2011-08-23

Rosenbaum, Mark (Department: 3725)

Solid material comminution or disintegration

Apparatus

Loose grinding body comminutor

C241S172000

Reexamination Certificate

active

08002213

ABSTRACT:
An agitator mill has a grinding vessel and an agitator shaft arranged such that it can be driven to rotate therein. Fixed at the end of the agitator shaft is a last agitator disc, on which is fixed a substantially cylindrical cage having apertures. Arranged inside the cage is a screening device. The distance between a second to last agitator disc and the last agitator disc is such that a braided flow forms, while avoiding a preliminary screening of grinding stock on one hand and auxiliary grinding bodies and coarse grinding stock particles on the other hand. Formed in the last agitator disc are passages through which the grinding stock passes together with the auxiliary grinding bodies, at which time a separation of the auxiliary grinding bodies and the coarse grinding stock particles takes place within the separating chamber formed by the last agitator disc and the cage. Formed in the last agitator disc are depressions that promote the formation of a braided flow between the last agitator disc and an adjacent agitator disc.

REFERENCES:
patent: 5333804 (1994-08-01), Liebert
patent: 5566896 (1996-10-01), Stehr et al.
patent: 5797550 (1998-08-01), Woodall et al.
patent: 4425832 (1995-02-01), None
patent: 4412408 (1995-10-01), None
patent: 0700723 (1996-03-01), None
patent: 0751830 (2002-02-01), None

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