Seal for the gas offtake piping of a coke oven
AssigneeUnited States Steel Corporation
InventorsPaul E. Champagne, Calvin E. Kelly, Thomas E. Nicely
Life of this patent
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Abstract
A seal for the offtake piping of a coke oven. The piping includes two communicating parts, such as an ascension pipe and a gooseneck, which move relatively to one another. A seal between these parts prevents escape of gases. The seal includes a trough fixed to one of the parts and receiving the other. The trough contains a body of a non-coking non-flammable liquid, preferably silicone, into which the other part extends. Optionally the trough may also contain a gasket of a closed cell sponge elastomer or a layer of granular material.
Claims8
In a combination which includes a coke oven, a collector main, and gas offtake piping, means for introducing fluid into said piping for flushing volatile materials from the gas, said piping including two communicating parts movable relatively to one another and a seal between said parts preventing escape of gases, the improvement in which said seal comprises a trough fixed to one of said parts and receiving an end of the other part, and a body of non-coking non-flammable liquid in said trough for preventing escape of gases between the two parts, said liquid being selected from the group consisting of silicone and water-glycol solution.
Dependencies are inferred from the claim text.