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    • 4. 发明公开
    • Process and apparatus for casting fused refractory oxides having high melting points
    • 用于铸造熔融耐火氧化物具有高熔点的方法和装置。
    • EP0021608A1
    • 1981-01-07
    • EP80301729.2
    • 1980-05-23
    • KENNECOTT CORPORATION
    • Cichy, Paul
    • C04B35/62F27B14/06
    • C04B35/657F27B3/085
    • The process comprises insulatingly supporting a vertically elongated bed of the particulate refractory oxide material at its bottom and sides. The upper surface of the bed is exposed to a plurality of electrodes to form at least one arc adjacent to the upper surface of the bed, thereby to form a zone of liquid refractory oxide material, or bath, surrounded by a layer of congealed material, or skull. A portion of particulate material from the side of the bed is removed to expose the congealed layer at a point adjacent the bottom portion of the zone of liquid material, and the congealed layer is pierced so that the zone of liquid material may be tapped. The bed is tilted to pourmolten refractory oxide material from said liquid zone to a point outside of the bed.
      The furnace comprises a furnace shell (11) adapted to receive and contain a charge of the refractory material (17), the side wall of the shell (11) having a vertical notch, or slit, (13) therein extending from the top of the wall downward to a distance of at least 2 3 of the total height of the shell (11). The notch (13) is adapted to receive a tapping means (35). A pouring spout (15) is positioned adjacent the notch, and extends outward from the shell (11). Means (19) for heating the interior portion of the shell (11), and means for tilting the shell (11) to an angle from about 5° to about 90° from the initial, at rest, position are also provided.
    • 该方法包括绝缘地在其底部和侧部支撑所述颗粒状耐火氧化物材料的垂直伸长的床。 床的上表面被暴露于电极的多元性以形成至少一个电弧毗邻床的上表面上,从而形成液体的难熔氧化物材料,或浴的区域中,通过凝结材料层包围, 或颅骨。 颗粒材料从所述床的侧的部分被去除,以在一个点上相邻液体材料的区的底部露出凝固层,并且凝固层被刺穿所以没有液体材料的区域可以被分接。 床倾斜到倒从所述液体区域熔融的难熔氧化物材料的点床的外部。 ... 该熔炉包括一个炉壳(11)angepasst在其中接收和包含电荷耐火材料(17),具有一个垂直凹口或狭缝(13)的壳(11)的侧壁的 从壁的顶部向下延伸到所述壳体(11)的总高度的至少2/3的距离。 凹口(13)是angepasst以接收自攻装置(35)。 倾倒口(15)定位成邻近所述凹口,并且从所述外壳(11)向外延伸。 装置(19)为用于倾斜所述壳体(11)加热所述壳(11)的内部部分的装置,以及在angleFrom大约5°至从初始约90°,在休息,因此,提供位置。