Gas seal for rotating grinding mill having peripheral discharge

Details Gas seal for rotating grinding mill having peripheral discharge Gas seal for rotating grinding mill having peripheral discharge

1976-12-16

1977-10-18

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 74, 277 75, 277 961, 241 48, 241176, 241179, B02C 428, B65D 5306

Patent

active

040542920

ABSTRACT:
A gas tight seal is provided for a rotating grinding mill having peripheral discharge outlets.
The mill has a rotatable shell into which the material to be ground is fed. During operation, the shell is provided with a gaseous inert atmosphere.
The seal comprises annular members adjacent the shell with circumferential grooves in said annular members carrying pressurized gas which prevents fine particles from lodging between the bearing surfaces on which the shell rotates and which also prevents loss of inert gas from the shell.

REFERENCES:
patent: 1487849 (1924-03-01), Grauert
patent: 1819093 (1931-08-01), Hardinge
patent: 1986103 (1935-01-01), Cole
patent: 2256841 (1941-09-01), Hardinge
patent: 3685840 (1972-08-01), Henry

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