包钢一号高炉热风炉在1983年大修中,采用了新型的“悬链线拱顶”。这种拱顶受力好,传热均匀,热能利用率高。在国内是首次采用。悬链线拱顶分三段,共七种砖型,砌筑安装时,按施工规范规定:“不允许有三层及三层以上重缝”。以往都是由施工单位预砌安装,需花费大量时间、人力和资金。 Baosteel No. 1 blast furnace hot blast stove was overhauled in 1983 and adopted a new type of “catenary catenary dome”. This vault has good stress, uniform heat transfer, and high thermal energy utilization. It is used for the first time in the country. The catenary arch is divided into three sections with a total of seven types of bricks. When masonry is installed, according to the construction specification, “three or more layers of heavy seams are not allowed”. In the past, it was pre-assembled and installed by the construction company, which required a lot of time, manpower and capital.