过桥堵塞是冲天炉熔炼过程中比较常见的故障。我厂经过多年的实践,在防止冲天炉过桥堵塞方面积累了一些经验,基本上能够防止在熔炼过程中过桥发生堵塞的现象,现将我厂的几点经验分述如下。一、改进过桥横截面我厂使用的是2t/h小型冲天炉,以前过桥横截面做成圆形,铁水很容易 Bridge blockage is the more common fault in the cupola melting process. After years of practice, our factory has accumulated some experience in preventing the blockage of the cupola. It can basically prevent the blockage of the bridge during the melting process. The experiences of our factory are as follows. First, to improve the cross-section of the bridge I plant is used 2t / h small cupola, the bridge cross-section before the round, hot metal is easy