20t电弧炉冶炼工艺优化  

Optimization of 20t EAF Smelting Process

作　　者：孙永喜[1] 马传庆[1] 李法兴[1] 刘金玲[1] 范斌[1] 

机构地区：[1]莱芜钢铁集团有限公司特殊钢厂,山东莱芜71105

出　　处：《山东冶金》2003年第S2期34-37,共4页Shandong Metallurgy

摘　　要：针对莱钢特钢厂20t电弧炉冶炼过程中存在的挂料现象、冶炼周期长、电耗高、氧气利用率低、炉衬渣线侵蚀严重、炉衬寿命低等问题,采取了优化入炉废钢结构、铁水热装、优化供电制度、泡沫渣埋弧操作、炉门氧枪供氧技术、油氧助熔技术和炉衬喷补等技术,使20t电弧炉冶炼周期缩短26min,变压器利用系数提高41.51%,炉体寿命提高286炉次,保证了连铸的顺行。Aiming at the problems existing in the 20t EAF smelting process such as bridging, long tap-to-tap, high electric consumption, low oxygen efficiency, serious scouring, low lining life etc., measures including optimizing charge scrap structure, hot charging, optimizing power supply system, arc-covering foamed slag, furnace door lance oxygen supplying, oil-oxygen fluxing and lining mortar injection technique are adopted in 20t EAF of the special steel works of Laigang, then the tap-to-tap is shortened by 26 min, the factor of transformer is increased by 41.51%, the body life is increased by 286 heats, the normal casting practice is guaranteed.

关 键 词：电弧炉 炉料结构 铁水热装 油氧助熔 氧枪供氧 

分 类 号：TF7415[冶金工程—钢铁冶金]