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继1986年9月3日邯郸钢铁公司化铁炉发生的一次死二人重大火灾事故之后,1986年10月24日13时,上钢一厂二炼钢厂,正在砌炉的2号化铁炉炉膛内,亦发生了一次同样性质的火灾事故,造成了三名工人死亡。该炉为钢壳竖热风化铁炉。处理量为55t/h,高点离地面36.67米;炉膛内最大直径4.94米,炉底直径2.7米;炉内砌筑的耐火材料,从炉底到5.14米处为碱性沥青砖,5.14米以上为酸性粘土砖和铁砖。砌炉人员从13米高的加料炉口上挂绳梯上、下。这起炉内火灾事故起火突然且火势猛烈。炉内无易燃物品,沥青砖挥发极微,不可能被点燃;现场勘查排除了燃油、煤气、乙炔气等易燃气体引起火灾的可能性。但发现富氧工艺试验的氧气管道的总阀门及风管前的一只截止阀处于开启状态;另外二只直
Following the September 3, 1986 Iron Handan Handan Iron and Steel Company suffered a major fire after the death of two major fires, at 13:00 on October 24, 1986, the first steel plant on the Second Steel Works, is building furnace No. 2 Iron In the hearth of the furnace, a similar fire accident took place, killing three workers. The furnace for the vertical steel weathered iron furnace. Capacity of 55t / h, the highest point of 36.67 meters from the ground; maximum diameter of 4.94 meters in the furnace, the bottom diameter of 2.7 meters; refractory built in the furnace, from the bottom of the furnace to 5.14 meters of alkaline asphalt brick, 5.14 meters The above is acidic clay brick and iron brick. Grate furnace staff from the 13-meter-high feeding furnace hanging rope ladder, the next. This fire accident within the furnace fire suddenly and the fierce fire. There is no inflammable material in the furnace, and the asphalt brick volatilizes very little and can not be ignited. The scene investigation excludes the possibility of fire caused by flammable gas such as fuel oil, coal gas and acetylene gas. But found that the oxygen valve oxygen test process of the total valve and duct before a stop valve is open; the other two straight