초록 ▼

An injector for injecting gas into a molten metal. The injector has a rotor that is rotatable about an axis of rotation, the rotor having a cylindrical projection-free side surface, a bottom surface, and a cavity for receiving molten metal located centrally of the rotor with respect to the axis of r

An injector for injecting gas into a molten metal. The injector has a rotor that is rotatable about an axis of rotation, the rotor having a cylindrical projection-free side surface, a bottom surface, and a cavity for receiving molten metal located centrally of the rotor with respect to the axis of rotation. The rotor is provided with a plurality of openings in the side surface spaced around the rotor for ejecting molten metal and gas from the rotor upon rotation of the rotor about the axis of rotation. At least one opening in the bottom surface communicates with the cavity permitting entry of molten metal into the cavity, and a plurality of passages disposed in the rotor interconnect the cavity and the openings in the side surface. A gas passageway introduces gas into molten metal present within the rotor but lacks direct communication with the cavity, and is provided with at least one outlet opening into at least one of the plurality of passages to ensure regular and even gas distribution. The invention also relates to a molten metal degassing apparatus comprising a trough-like container for conveying a molten metal from an inlet to an outlet, and at least one gas injector of the above-mentioned kind.

대표청구항 ▼

[ What I claim is:] [1.] An injector for injecting gas into a molten metal, comprising:a rotor that is rotatable about an axis of rotation, said rotor having a cylindrical projection-free side surface, a bottom surface, and an internal cavity for receiving molten metal located centrally of the rotor

[ What I claim is:] [1.] An injector for injecting gas into a molten metal, comprising:a rotor that is rotatable about an axis of rotation, said rotor having a cylindrical projection-free side surface, a bottom surface, and an internal cavity for receiving molten metal located centrally of the rotor with respect to said axis of rotation;a plurality of openings in said side surface spaced around the rotor for ejecting molten metal and gas from said rotor upon rotation of said rotor about said axis of rotation;at least one opening in the bottom surface communicating with said cavity permitting entry of molten metal into said cavity;a plurality of passages disposed in the rotor interconnecting said cavity and said openings in said side surface; anda gas passageway for introducing gas into molten metal present within said rotor;wherein said gas passageway, lacking direct communication with said cavity, has at least one outlet opening into at least one of said plurality of passages.