四号高炉热风炉由于震动,投产两个月燃烧室内墙就开始掉砖,与同类型热风炉相比掉砖过早,次数频繁,四座热风炉的潜力不仅没有发挥而且还给生产带来不利影响。投产十年来仅维修费一项就花掉600多万元。曾分别采取加固基础和改进燃烧室砌砖,均未取得效果。现就四号高炉热风炉生产中出现的现象和对产生震动的原因进行分析。一、原设计施工情况及生产中出现的现象 1.原设计施工情况四号高炉(2516米~3)热风炉基本是套用三号高炉(1513米~3)热风炉的设计进行施工的,由于加热风量增大,仅在以下几项作了 Fourth blast furnace stove due to vibration, put into operation two months the combustion chamber wall began to fall brick, compared with the same type of hot stove out of brick premature, frequent, four hot stove not only did not play the potential but also to produce adverse influences. Put into operation only one year maintenance costs spent more than 600 million. Have taken reinforcement foundation and improve the combustion chamber brick, were not achieved results. The fourth blast furnace is the production of hot stove in the phenomenon and the reasons for the vibration were analyzed. First, the original design and construction situation and the phenomenon of production 1. The original design and construction of the Fourth blast furnace (2516 m ~ 3) is mainly applied to blast furnace No. 3 blast furnace (1513 m ~ 3) hot blast furnace design for construction, due to Heating air volume increases, only made in the following