| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for controlling introduction of combustion air in a coke dry quenching facility, whereby the amount of air required for combustion of combustion gas in circulating gas can be supplied, even when the amount of red-hot coke changes.SOLUTION: A method for controlling introduction of combustion air, wherein air for burning combustion gas is introduced into circulating gas in a coke dry quenching facility 10, comprises: installing an air introducing means 25 into a cooling chamber 11 for cooling red-hot coke, wherein the air introducing means 25 is equipped with an intake port that spontaneously sucks air by utilizing pressure difference between the circulating gas and the atmosphere, an air fan for forced introduction of air, and a flow control valve for controlling the amount of air introduced via the intake port or the air fan depending on the concentration of the combustion gas; spontaneously sucking air by stopping the air fan and opening the inlet port in a process wherein the concentration of the combustion gas decreases from the concentration at steady-load operation; and forcibly introducing air by shutting the inlet port and operating the air fan in a process wherein the concentration of the combustion gas increases toward the concentration at steady-load operation. |
