ISSN:1003-8620
CN:42-1243/TF
主管:中信泰富特钢集团股份有限公司
主办:大冶特殊钢有限公司
特殊钢 ›› 2010, Vol. 31 ›› Issue (5): 36-38.
• 工艺技术 • 上一篇 下一篇
秦军
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Qin Jun
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摘要: 70 t电弧炉的炉料装入量为80~81 t,其中热直接还原铁热压块HBI为14.6~15.2 t,铁水23~27 t,其出钢量77~78 t,电耗316~324 kWh/t,氧耗29.7~33.0 m~3/t,冶炼周期48~54 min。生产实践表明,热压块是优质废钢的替代品,可促进电弧炉脱磷和脱碳反应,降低氧耗1.3~3.2 m3/t,但每增加1%热压块则增加电耗3.5kWh/t,所以炉料为全废钢时不宜配加热压块,当加入30%铁水和加入10%热压块时可以达到冶炼过程最优化。
关键词: 70 t电弧炉, 热压块, 电耗, 冶金质量
Abstract: Charged weight for the 70 t arc furnace is 80-81 t including direct reduction iron hot briquette (HBI) 14.6-15.2 t and hot metal 23-27 t, its tapping liquid amount is 77-78 t, electric power consumption 316 ~ 324 kWh/t, oxygen consumption 29.7-33. 0 m3/t and tap-to-tap time 48 ~54 min. Steelmaking practice shows that HBI is a substitute for quality scrap, it is available to improve dephosphorization and de-carbon reaction, decrease oxygen consumption 1.3-3.2 m3/t, but with increasing every 1% charge of HBI the electric power consumption increases 3. 5 kWh/t, therefore it is not suitable charging HBI only with scrap, as charging 30% hot metal and 10% HBI the steelmaking process is optimization.
Key words: 70 t Arc Furnace, HBI, Electric Power Consumption, Metallurgy Quality
秦军. 70 t电弧炉应用热压块HBI冶炼的工艺实践[J]. 特殊钢, 2010, 31(5): 36-38.
Qin Jun. Practice for Steelmaking Process of a 70 t Arc furnace by Using Hot Briquette Iron[J]. Special Steel, 2010, 31(5): 36-38.
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