METHOD AND APPARATUS FOR PREVENTING GAS LEAKAGE OF COKE OVEN DUCT

摘要

PROBLEM TO BE SOLVED: To provide a countermeasure to damages propagating over a wide range from a high-temperature portion to a low-temperature portion of a gas duct. SOLUTION: The method for preventing the gas leakage of a coke oven duct is a method for preventing the gas leakage in a duct 5 which is positioned between a regenerative chamber 3 and a regenerative chamber 4 and through which a gas supplied to a combustion chamber 2 passes by inserting a gas leakage preventive material 10 into the gas duct 5 to inhibit the gas from flowing between the gas duct and each of the regenerative chambers caused by occurrence of a crack, a joint cut or the like. The apparatus for preventing the gas leakage of the coke oven duct is provided with the gas leakage preventive material inserted into the gas duct such that the cross-sectional area of the inserted material occupies 30-90% of the cross-sectional area of the gas duct. COPYRIGHT: (C)2004,JPO