电磁流体力学在直流电弧炉上的应用  

MAGNETOHYDRODYNAMICS(MHD)APPLICATIONS TO DC ARCFURNACE

作　　者：杨继进[1] 闫立懿[1] 武振廷 

机构地区：[1]东北大学

出　　处：《钢铁》1996年第6期14-17,共4页Iron and Steel

基　　金：国家自然科学基金

摘　　要：应用电磁流体力学的基本理论，研究了一台１２ｔ─６．３ＭＶＡ直流电弧炉内与电磁流体力学有关的几个重要问题。当操作电流为１８ｋＡ时，直流电弧的最大流速为２．７４５ｋｍ／ｓ；电弧在周围电磁场作用下存在偏弧现象，偏转角度约为１５～２０°；高速流动的电弧对炉内钢水冲击产生的凹坑深度约为５０ｍｍ；贯穿整个熔池的电流产生的电磁力是引起钢水循环流动的主要原因。Some key problems for application of MHD to a 12 t─6.3 MVA DC arc furnace have been studied based on basic MHD theory.The results show that max.velocity in arc is 2.745 km/s;arc is deflected about 15～20°by the influence of its surrounding magnetic field;the depth of the depression by arc is about 50 mm and the electromagnetic force induced in the molten bath due to the passage of the current is the main cause of recirculating of the metal.

关 键 词：电磁流体力学 直流电弧炉 炼钢 

分 类 号：TF741.5[冶金工程—钢铁冶金]