为配合高炉大修需要,鞍钢修建部于1960年设计并制成了高达80米的人字式超重机。大型高炉大修时,大多数部件需要更换,有许多部件(如煤气上升管、下降管、炉顶设备和除尘器等)、不仅很重,而且位置很高,非用很高的塔式起重机不能进行拆装。但往往由于高炉环境所限,不能架设这种设备。我们采用了这台人字起重机后,便给 In order to meet the needs of the blast furnace overhaul, the Anshan Iron and Steel Construction Department designed and built an ultra-heavy machine with a height of 80 meters in 1960. When large-scale blast furnaces are overhauled, most of the parts need to be replaced. There are many components (such as gas riser, downcomer, furnace top equipment, dust remover, etc.), not only heavy, but also in high positions. The tower cranes that are not very high cannot Make a disassembly. However, such equipment cannot be erected due to the limitations of the blast furnace environment. After we adopted this crane, we gave it