Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1978-07-25
1981-06-02
Smith, Robert I.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277102, F16J 1540, F16J 1526
Patent
active
042707625
ABSTRACT:
A seal for a shaft of a disperser crusher, that pulverizes hot coal particles, maintains a higher than atmospheric pressure within a casing for the crusher, and is able to withstand elevated temperatures that are produced within the casing. The pressure and temperature result from hot gases that convey coal particles to the crusher. The seal includes self lubricating graphite packings that are urged in abutting relation with a smooth, ceramic sleeve on the shaft and are able to withstand the temperature on the shaft surface. A first, interior packing is on the inside of a wall of the casing while a second, exterior packing is outside of the wall. Superheated steam, a gas inert with the coal particles, is supplied to the interior packing with sufficient pressure to substantially prevent the migration of coal particles through the interior packing. The tendency of the coal particles to migrate from the container through the interior packing is further inhibited by providing a tortuous path from the casing to the interior packing.
REFERENCES:
patent: 3403915 (1968-10-01), Roberts
patent: 3474734 (1969-10-01), Stogner
patent: 3512723 (1970-05-01), Geoffroy
patent: 3575426 (1968-06-01), Durham
patent: 3646846 (1972-03-01), Houghton et al.
patent: 3943717 (1976-03-01), Schexnayder
patent: 4094513 (1978-06-01), Kime et al.
Coaltek Corporation
Smith Robert I.
LandOfFree
Disperser seal and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Disperser seal and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disperser seal and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1862160