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莱钢1号1880m~3高炉因铁口漏铁造成紧急休风,共计休风7天8小时23分钟。复风后,在炉缸大凉的情况下,采取了选择合理的复风料、控制加风节奏、抑制炉温向凉、及时排出冷渣铁、慢通风口、打通东铁口,以及控制合适的炉温和炉渣碱度等有效措施,使高炉在较短的时间内就基本接近恢复到正常状态。在炉况的快速恢复过程中,附加焦炭的选择是恰当的,初期220t铺底焦对加热炉缸至关重要;此外,立即过量喷煤,并配合一定的富氧量,以控制炉温继续向凉的趋势,为炉温的回升创造了条件。
Laiwu Steel 1 1880m ~ 3 Blast furnace due to iron leakage caused by emergency Hugh, a total of 7 days off for 8 hours and 23 minutes. After returning to the wind, in the case of a big cool hearth, take a reasonable choice of complex materials to control the rhythm of wind plus, inhibit the furnace temperature to cool, timely discharge of slag iron, slow vent, open the East Rail mouth, and control Appropriate furnace temperature and slag alkalinity and other effective measures, so that the blast furnace in a relatively short period of time basically returned to normal conditions. In the rapid recovery of the furnace process, the choice of additional coke is appropriate, the initial 220t bottom coke on the hearth is crucial; In addition, immediately over-jet coal, and with a certain amount of oxygen-rich to control the furnace temperature to continue to Cool trend, created the conditions for the temperature rise.