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    • 1. 发明授权
    • Apparatus and process for deslagging steel
    • 脱铝设备及工艺
    • US3632096A
    • 1972-01-04
    • US3632096D
    • 1969-07-11
    • REPUBLIC STEEL CORP
    • PERRY THOMAS E
    • C21C7/10F27D3/15C21C7/00
    • C21C7/10F27D3/1572
    • Apparatus and process for deslagging molten metal such as steel. Molten steel is prepared in a conventional melting furnace and is tapped into a ladle. A vacuum is applied to the slag on the surface of the steel in the ladle by means of an uptake tube containing a thermally insulating paper or refractory lining. The proximity of the uptake tube to the steel-slag interface may be determined by an electrical probe. A chamber couples a vacuum source to the uptake tube, causing the slag to be funneled through the uptake tube until it is deflected by a baffle within the chamber. In an alternative embodiment the uptake tube terminates in a cap having a cross-sectional area substantially equal to the cross-sectional area of the ladle so that the slag is forced through the uptake tube into the chamber. The slag is received in a slag box forming the lower portion of the chamber. A cascade slag trap is provided for collecting that portion of the slag which manages to pass through the chamber. The vacuum source may be of such large capacity that it also provides a vacuum environment for a ladle degassing system.
    • 用于除铁等熔融金属的装置和方法。 熔融钢在常规的熔化炉中制备,并被浸入钢包中。 通过含有绝热纸或耐火衬里的吸收管,将钢包中的钢的表面上的炉渣施加真空。 吸收管与钢 - 渣界面的接近可以通过电探针来确定。 腔室将真空源耦合到摄取管,导致炉渣通过吸收管漏斗,直到其被室内的挡板偏转。 在替代实施例中,吸收管终止于具有基本上等于浇包的横截面面积的横截面面积的盖,使得炉渣被迫通过吸收管进入室。 炉渣被容纳在形成室的下部的炉渣箱中。 提供了级联渣阱,用于收集管道通过该室的炉渣部分。 真空源可以具有如此大的容量,其也为钢包脱气系统提供真空环境。