Self-contained air seal assembly for coal pulverizer

Details Self-contained air seal assembly for coal pulverizer Self-contained air seal assembly for coal pulverizer

1998-06-26

1999-08-31

Hail, III, Joseph J.

Solid material comminution or disintegration

Apparatus

Plural rotary or oscillatory surfaces cooperate with common...

B02C 904

Patent

active

059442700

ABSTRACT:
A bowl mill having a separator body, a grinding table and a plurality of grinding rolls for exerting grinding forces on material to be ground is provided with a plenum and a vane assembly for controlling the pressure conditions in the separator body. The vane assembly includes a plurality of vanes which rotate within the plenum to propel air from the plenum into an upper region of the separator body. This arrangement prevents or minimizes the penetration or migration of ground material into a lower region of the separator body of the bowl mill.

REFERENCES:
patent: 2689689 (1954-09-01), Engler
patent: 2909330 (1959-10-01), Hardinge
patent: 3199797 (1965-08-01), Eft et al.
patent: 4441720 (1984-04-01), Dibowski et al.
patent: 4789105 (1988-12-01), Hosokawa et al.
patent: 5295629 (1994-03-01), Satake et al.

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