The waste heat recovery system from ascension pipe for 6 m battery has been running safely and stably for more than three years in Masteel.During the actual operation,the material and structure of the heat exchanging tubes have been optimized and the problems such as water leakage at the ascension pipe and carbonization on the inner wall of the pipe,etc.have been solved,which bolstered experiences in the waste heat recovery from ascension pipe and achieved remarkable economic and environmental benefits.

"> Ascension pipe of coke oven, Crude coke oven gas, Waste heat recovery,  , Energy saving and environmental protection