Apparatus and method for sealing coke oven doors
AssigneeKoppers Company, Inc.
InventorsJoseph Van Ackeren, Linwood G. Tucker
Life of this patent
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Abstract
A coke oven door has a primary seal that includes a first metal knife edge in contact with a door jamb first sealing surface, and a secondary seal that includes a second metal knife edge in contact with a door jamb second sealing surface. The plenum or space between the sealing knife edges is maintained at super atmospheric pressure by flowing coke oven gas into the plenum. In a modification of the invention, the secondary seal includes a metal strp in contact with an elastic material; the plenum between the sealing surfaces being also pressurized above atmospheric pressure and purged of coke oven gas.
Claims4
In a coke oven battery having a door, and a door jamb, and a door frame at one end of a coke oven chamber therein, the improvement comprising:
- a. a plenum formed by said door jamb and primary sealing means extending around the periphery of said door adapted to coact with a sealing surface on said door jamb, and with
- b. secondary resilient sealing means extending around the periphery of said door;
- c. means on said door jamb that sealingly coacts with said secondary resilient sealing means when said door is installed in place on said coke oven battery;
- and
- d. means for pressurizing said plenum.
Dependencies are inferred from the claim text.