我国炼铁高炉炉渣,大都采用“水冲渣沟”处理,如果高炉出渣过快,或遇高炉跑大流,部分铁水进入渣沟遇水时,极易发生爆炸事故。爆炸的主要原因是由于大量高温炉渣或铁水(一般在1000℃左右)遇水时,水瞬间汽化、体积迅速膨胀而形成物理爆炸。威远钢铁厂炼铁高炉以前采用这种“水冲渣沟”处理炉渣,曾多次发生爆炸事故。有一次爆炸事故,气浪将渣沟上重1t的铁桥冲起20多米高,一块重25kg的铁块被抛出 China’s ironmaking blast furnace slag, most of the “water slag ditch” treatment, if the blast furnace slag too fast, or ran into the blast flow, part of the molten iron into the ditch when the water, prone to explosion. The main reason for the explosion is that due to a large amount of high-temperature slag or hot metal (usually around 1000 ℃), water instantly evaporates and expands in volume to form a physical explosion. Weiyuan Iron and Steel Plant blast furnace used before this “water dross ditch” treatment of slag, there have been many explosions. There was an explosion accident, the air wave will slag ditch on the weight of 1t iron bridge washed up more than 20 meters high, a weight of 25kg was thrown