两个不同容量高炉的自动拨风装置的应用

Application of Automatic Air Distributing Device for Blast Furnaces of Two Different Capacities

介绍了两个不同容量高炉的自动拨风装置的应用方案。在两座高炉的管道上分别安装电动调节阀,在两电动调节阀之间安装有气动拨风阀。平时将两个电动调节阀调整在定量开启位置,根据两座高炉的容量差和运行的风压差,计算出电动调节阀的开启位置,即同时满足大容量高炉运行的最低风量值和小容量高炉最高承压值。当其中一台鼓风机出现停机时,气动拨风阀自动快速打开,由正常运行鼓风机向故障鼓风机对应的高炉定量拨风,保证故障高炉不发生灌渣事故,解决了两个不同容量高炉的拨风问题,减小经济损失。该技术已获得实用新型专利。

The paper introduces the application plan of automatic air distributing devices for two blast furnaces with different capacities. On furnace pipe work are equipped electric regulating valves, between which pneumatic air distributing valves are installed. The two electric regulating valves are normally set to open position with certain angle, which is calculated based on the capacity difference and blast pressure difference of the two furnaces. That is to say, the minimum blast volume of the big furnace and the maximum pressure bearing value of the small furnace can be both met at the same time. When one blower stops, pneumatic air distributing valve opens automatically and rapidly and the running blower supplies the blast quantitatively to the furnace with fault blower so as to avoid slag flooding accident. Since solving the air distribution problem of two blast furnaces with different capacities and reducing economic loss, this technology was awarded new practical patent.