Mathematical modeling of the heating of the metal structures of a foundry crane equipped with heat shields

Abstract

The pouring of pig iron into a basic oxygen converter is accompanied by the ejection of matter from the furnace (incandescent dust-bearing gases, flames, splashing metal, etc.) These emissions act on elements of the casting cranes: the metal structures of the crane, the lifting bogie of the main hoist, the cables, and the cross beam. The effects of high temperatures on the parts of these cranes can be mitigated by using heat shields. A mathematical model was constructed to describe the heating of the surface of the metal structures of a casting crane protected from heat by different methods. Providing the shields with a protective layer of the heat-insulating silica-based ceramic Supersil makes it possible to lower the temperature to which the metal structures of the crane are heated.