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环形加热炉原以天然气为燃料,为节省燃料费用成本,同时充分利用煤气厂生产的富裕焦炉煤气,故将环形炉1~3区燃料由天然气改为焦炉煤气。建立焦炉煤气阀站及分区管路,更换烧嘴及烧嘴砖,更换调节阀、流量孔板等现场电气设备,建立全新燃烧控制程序及HMI画面。对改造后环形炉运行带来的经济效益进行了分析比较。
In order to save the cost of fuel cost and to make full use of the rich coke oven gas produced by the gas plant, the toroidal furnace is replaced by natural gas into coke oven gas. The establishment of coke oven gas valve stations and sub-regional pipeline, burner and burner brick replacement, replacement valves, flow orifice and other on-site electrical equipment, the establishment of a new combustion control program and HMI screen. After the transformation of the operation of the ring furnace economic benefits were analyzed and compared.