| 摘要 |
The present invention relates to a metal treatment vessel comprising an inlet (5) for the successive introduction of reactive additive and molten metal to be treated, a reaction chamber (2) provided downstream of the flow of molten metal for successive receipt of the additive and molten metal and an outlet (4) downstream of the flow of molten metal in the reaction chamber (2). The inlet (5) is provided with means (6) for directing the additive and molten metal into the reaction chamber (2). The dimensions of the inlet (5) to the reaction chamber (2) and the outlet (4) therefrom being such that in operation the molten metal rises in an overhead space provided in the reaction chamber (2) to cover the additive and to seal the inlet (5). In a preferred embodiment there is also provided a retaining means in the form of a brick (3) to retain the additive against the flow of molten metal. |
