| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for prolonging the service life of a molten iron vessel, in which the large effect is obtd. at a low cost by actively using aluminum ash as erosion preventing agent. SOLUTION: The bed of the molten iron vessel lined with refractory brick 3 is covered with the aluminum ash 1. On the working surface side of the aluminum ash, Al2O3-SiO2 sintered layer 2 in the aluminum ash components is formed with the radiation heat in the molten iron vessel and also, it is considered that AlN formed by reacting the metallic Al in the aluminum ash and the air has the molten iron resistance and the erosion of the refractory brick 3 on the bed is prevented. In this way, the service life of the molten iron vessel having 630-680 charges in the conventional method, can be extended to 1000-1100 or more charges the service life of the molten metal vessel.
|
