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1. 发明授权

US6026113A Method for the electromagnetic stirring of the liquid metal in electric arc furnaces and relative device 失效
标题翻译：电弧炉液相金属电磁搅拌方法及相关装置
公开(公告)号：US6026113A
公开(公告)日：2000-02-15
申请号：US949763
申请日：1997-10-14
申请人： Milorad Pavlicevic , Anatoly Kolesnichenko , Alfredo Poloni , Cristina Bassi
发明人： Milorad Pavlicevic , Anatoly Kolesnichenko , Alfredo Poloni , Cristina Bassi
IPC分类号： B01F13/08 , C21C5/52 , F27B3/08 , F27B3/10 , F27D3/00 , F27D27/00 , H05B6/34 , F27D23/04
CPC分类号： F27D27/00 , B01F13/0809 , C21C5/5229 , F27B3/10 , H05B6/34 , B01F2215/0075 , F27B3/085 , F27D2003/0039 , H05B2213/02 , Y02P10/216 , Y02P10/253
摘要： Method for the electromagnetic stirring of the liquid metal (14) in direct current electric arc furnaces which include a hearth (35) defined by a floor (13) and by side walls (15), a central cathode (11) cooperating with anodes (12) arranged on the floor (13) of the furnace and fed by a main current (I.sub.0), wherein there is an electromagnetic system generating a magnetic field inside the liquid metal (14) whose vertical (B.sub.z) and radial (B.sub.r) components interact respectively with the radial (J.sub.r) and vertical (J.sub.z) components of the overall current present in the liquid metal (14). The method and device use a first electromagnetic system including at least a first winding (19) through which a current (I.sub.1) flows and operating from inside the floor (13) and the walls (15) of the hearth (35), and a second electromagnetic system generating a secondary induced current (I.sub.3), between adjacent anodes (12), which circulates through the liquid metal (14). The first winding includes a plurality of spirals (20), at least some of the spirals (20) being arranged inside the refractory of the hearth (35) in cooperation with the floor (13) and with at least a vertical segment of the side walls (15).
摘要翻译：用于在直流电弧炉中电磁搅拌液态金属（14）的方法，其包括由地板（13）和侧壁（15）限定的炉床（35），与阳极配合的中心阴极（11） 12），其布置在炉的地板（13）上并通过主电流（I0）馈送，其中存在在液体金属（14）内产生磁场的电磁系统，其中垂直（Bz）和径向（Br）分量分别与液态金属（14）中存在的总电流的径向（Jr）和垂直（Jz）分量相互作用。该方法和装置使用包括至少第一绕组（19）的第一电磁系统，电流（I1）从底板（13）和炉床（35）的壁（15）流动并操作，第二电磁系统，在相邻的阳极（12）之间产生二次感应电流（I3），其循环通过液态金属（14）。第一绕组包括多个螺旋（20），所述螺旋（20）中的至少一些与底板（13）协作布置在炉床（35）的耐火材料的内部，并且至少一侧的垂直段墙（15）。

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