| 摘要 |
<p>PURPOSE:To change the mineral composition of slag and prevent its collapse, by putting a prescribed quantity of clay slate or shale, which is molten at a temperature lower than that of the molten slag of a converter or an electric furnace, into the molten slag and supplying a necessary quantity of heat to the mixture from the outside. CONSTITUTION:Clay slate or shale, which is molten at a temperature lower than that of the molten slag of a converter or an electric furnace, is put into the molten slag. The quantity of the slate or shale is such that the free CaO and 2CaO.SiO2 in the steel slag is eliminated. A necessary quantity of heat is supplied to the mixture from the outside. The clay slate or shale reacts with the slag so that the minieral composition of the slag is stabilized. The uncollapsable slag is thus produced without quenching. This slag can be utilized for ballast, sand or the like and the handling of the slag such as transportation is easy.</p> |
