过去,湘钢高炉的大、中修均采用炉顶放散煤气打水停炉法,停炉前要进行一次小休风,需安装炉顶喷水管,取下炉顶两个放散阀底座,除尘器切断阀装型砂密封,安装两根能测量20m深料面的软探尺等,需计划休风8h,停炉周期长,工人劳动强度大,产量损失大。而且,停炉过程中总会产生大小不等的爆震现象,为此都得提前减风,致使 In the past, large and medium-sized repair of blast furnace in Xiangtan Iron and Steel Co., Ltd. adopted the method of discharging water from the top of the furnace to stop the water. A small break was to be carried out before the furnace shutdown. The top- Dust shut-off valve installed sand seal, the installation of two 20m deep material surface can be measured soft probe, need to plan a break 8h, stop the furnace long cycle, workers labor intensity, loss of production. Moreover, the process of shutdown will always have the size of the detonation phenomenon, have to reduce the wind earlier, resulting in