Direct current electric furnace for melting metal
    1.
    发明授权
    Direct current electric furnace for melting metal 失效
    直流电炉用于熔化金属

    公开(公告)号:US5410564A

    公开(公告)日:1995-04-25

    申请号:US776235

    申请日:1991-11-11

    摘要: According to the present invention, there is provided a direct current electric furnace for melting metal capable of melting scraps rapidly and also capable of diminishing cold and hot spots formed on the furnace wall, wherein the direct current electric furnace is provided with a single top electrode, a plurality of furnace bottom electrodes, or a plurality of electrode units obtained by dividing a multitude of furnace bottom electrodes of a small diameter into plural units, and electric current controlling thyristor circuits for controlling each individually electric currents flowing through the plural furnace bottom electrodes or electrode units. The electric current controlling thyristor circuits may be substituted by thyristor circuits for controlling electric currents for each of plural groups obtained by dividing the above plural furnace bottom electrodes or the above many furnace bottom electrodes or the above plural electrode units into the plural groups.

    摘要翻译: PCT No.PCT / JP91 / 00368 Sec。 371日期1991年11月11日 102(e)1991年11月11日PCT PCT 1991年3月19日PCT。 出版物WO91 / 14911 日本1991年10月3日。根据本发明,提供了一种用于熔融金属的直接电炉,其能够快速熔化废料并且还能够减少形成在炉壁上的冷和热点,其中直流电炉 设置有单个顶部电极,多个炉底电极或通过将多个小直径的炉底电极分成多个单元而获得的多个电极单元,以及用于控制每个单独电流的电流控制晶闸管电路 流过多个炉底电极或电极单元。 电流控制晶闸管电路可以由用于控制通过将上述多个炉底电极或上述多个炉底电极或上述多个电极单元分成多个组而获得的多组中的每一组的电流控制的晶闸管电路代替。