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公开(公告)号：US20240052444A1
公开(公告)日：2024-02-15
申请号：US18258150
申请日：2021-12-17
Applicant: FOSECO INTERNATIONAL LIMITED
Inventor： David HRABINA , Colin POWELL
CPC classification number: C21C5/4613 , C21C7/0056 , C21C7/072 , C21C7/076 , C21C5/462
Abstract: A rotary device and methods for treating molten metal, a tubular sleeve for said rotary device and the use of said rotary device in the treatment of molten metal. The rotary device comprises: a tubular sleeve comprising a rotor head at one end, the rotor head comprising a gas outlet for dispersing gas into molten metal; and a hollow shaft extending inside the tubular sleeve such that at least a portion of the hollow shaft is enclosed by the tubular sleeve, wherein the hollow shaft is fluidly connected to the gas outlet of the rotor head, the tubular sleeve is formed from a refractory material that is resistant to corrosion and thermal shock, and the hollow shaft is formed from a material comprising graphite. A first method comprises: applying a layer of synthetic slag material onto an exposed surface of the molten metal; and stirring the molten metal using a rotary device comprising a rotor head, such that the molten metal flows past the layer of synthetic slag material. A second method comprises: applying a metal treatment agent to molten metal; stirring the molten metal using a rotary device comprising a rotor head; and discharging gas into the molten metal through the rotor head.
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公开(公告)号：US20240052443A1
公开(公告)日：2024-02-15
申请号：US18258139
申请日：2021-12-17
Applicant: FOSECO INTERNATIONAL LIMITED
Inventor： David HRABINA , Colin POWELL
CPC classification number: C21C1/06 , C21C1/105 , C21C1/02 , C21C7/0056
Abstract: A method for treating molten iron includes applying a metal treatment agent to molten iron; and stirring the molten iron using a rotary device comprising a rotor head. The rotary device can be resistant to corrosion and thermal shock, and thereby permit efficient application of metal treatment agents.
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