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本文概述了鞍钢炼铁厂两种结构型式的外燃式热风炉在生产中的应用情况及结构上存在的问题。在操作制度等其它条件基本相同的情况下,设有陶瓷燃烧器的外燃式热风炉比普通的内燃式热风炉平均风温提高70℃。实践证明,“马琴”式和“新日铁”式外燃式热风炉的缩口角度取62～63°是合理的。滑动缝的设计,对硅砖可取10mm;对高铝砖可取5mm。经过多次反复试验证明。外燃式热风炉在生产中存在着周期地上下涨落运动和摆动,这两种运动对热风炉的结构破坏性很大,因此,在送风系统的管道上应设置膨胀器。
This article summarizes the application and structural problems of two types of external combustion type hot blast stoves in Anshan Iron and Steel Company. In the operating system and other conditions are basically the same case, with a ceramic burner external combustion stove than the average internal combustion stove hot air temperature increased by 70 ℃. Practice has proved that, “Maqin” type and “Nippon Steel” type external combustion stove shrink angle 62 ~ 63 ° is reasonable. Sliding seam design, the silicon brick desirable 10mm; desirable for high alumina brick 5mm. After repeated trial proved. External combustion stove in the production there is a cyclical ups and downs of the movement and swing, the two campaigns on the structure of hot stove destructive, therefore, in the air supply system should be installed on the expander.