精炼炉冶炼过程中低碳钢增碳行为分析  

Analysis for carburization behavior of low-carbon steel during smelting process by refining furnace

作　　者：贾文涛 贾晓华 崔国伟 

机构地区：[1]吉林炭素有限公司,吉林吉林132002 [2]河北钢铁集团燕山钢铁有限公司,河北迁安064403

出　　处：《炭素技术》2017年第3期64-67,共4页Carbon Techniques

摘　　要：应用事故树分析理论分析冶炼低碳钢过程中精炼阶段低碳钢增碳根源,并给出改进措施:通过调整LF炉设备状况,特别是调整导电支臂倾角,使三相电流电抗平衡,降低电极消耗;通过调整氩气供给量、氩气底吹孔(双孔)的角度使钢水混匀搅拌时间达到最佳最短;调整石墨电极配方中大颗粒比例,使电极开裂掉块现象大幅减少,为低碳钢冶炼过程中降低低碳钢增碳提供技术支撑。The masons of carburization of low-carbon steel during the refining process were analyzed by applying the fault tree theoretical analysis method. The improvement measures including adjusting the inclination angle of the conductive arm to balance the reactance of three-phase current and reduce the electrode consumption, adjusting the supply amount of argon gas and the angle of the bottom blowing hole for argon gas to mix the molten steel and save the mixing time, adjusting the ration of the coarse aggregate in the formula for the graphite electrode to reduce the cracking and chip off-falling of the electrodes, were put forth, which could provide the technological support for reducing the carburization of low-carbon steel during the refining process.

关 键 词：事故树 低碳钢 石墨电极 增碳 

分 类 号：TQ127.11[化学工程—无机化工] TF761.2[冶金工程—钢铁冶金]