Means of sealing off the inside of a pulverizer

Details Means of sealing off the inside of a pulverizer Means of sealing off the inside of a pulverizer

1983-11-18

1985-02-26

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 71, F16J 1540

Patent

active

045014302

ABSTRACT:
Means of sealing off the inside of a pulverizer, especially a bowl-mill pulverizer that has a horizontal rotating bowl-type grinding ring rigidly connected to a shaft, from the outside atmosphere. The means comprise a barrier-air chamber and ring seals in a ring-seal holder. The ring seals are slide rings that fit into grooves. They demarcate the barrier-air chamber. The ring seal on the side of the chamber that faces the inside of the pulverizer does not fit as tightly against its opposing surface (the shaft in one embodiment) as those on the other side.

REFERENCES:
patent: 3825270 (1974-07-01), Pardmonoff
patent: 4101139 (1978-07-01), Nordin
patent: 4196910 (1980-04-01), Aizu
patent: 4199153 (1980-04-01), Martin
patent: 4222575 (1980-09-01), Sekiguchi et al.
patent: 4289319 (1981-09-01), Hold
patent: 4332392 (1982-06-01), Boehringer

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