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高炉砂口(撇渣器)在炼铁生产工艺过程中起着分离渣铁的重要作用。其工作状态的好坏,对高炉生产有着直接的影响。高炉砂口经常处于高温铁流、渣流的强烈冲刷和化学侵蚀之中,其工作环境十分恶劣,因而维护起来也就较为困难。随着高炉操作的不断强化,出铁量和出铁次数不断增加,高温渣铁对砂口的破坏作用更加剧烈,因此采取有效措施来延长砂口的使用寿命,具有现实意义。
Blast furnace sand mouth (skimmer) in the iron production process plays an important role in the separation of iron and slag. The quality of their work, the blast furnace has a direct impact on production. Blast furnace sand mouth is often in the high temperature iron stream, slag scour and chemical erosion, the working environment is very poor, so it is more difficult to maintain. With the continuous strengthening of blast furnace operation, the amount of iron tapping and the number of tapping continue to increase, and the destructive effect of hot slag and slag on the sand mouth is more severe. Therefore, it is of practical significance to take effective measures to extend the service life of the sand mouth.