70 t电弧炉热兑转炉液态渣的工艺实践

特殊钢 ›› 2012, Vol. 33 ›› Issue (4): 36-38.

70 t电弧炉热兑转炉液态渣的工艺实践

俞海明, 解英明, 陈跃军, 段建勇, 胡永胜, 兰飞鹏, 李栋, 王瑞利

宝钢集团新疆八一钢铁股份公司第二炼钢厂，乌鲁木齐830022

收稿日期:2012-01-10 出版日期:2012-08-01 发布日期:2022-10-25
作者简介:俞海明( 1968-),男，助理工程师，炼钢工艺和渣处理工艺研究。

Process Practice of BOF Molten Slag Charging in a 70 t Electric Arc Furnace

Yu Haiming, Xie Yingming, Chen Yuejun, Duan Jianyong, Hu Yongsheng,Lan Feipeng, Li Dong and Wang Ruili

No2 Steelmaking Plant, Xinjiang Bayi Iron and Steel Co Ltd, Baosteel Group, Wulumuqi 830022

Received:2012-01-10 Published:2012-08-01 Online:2022-10-25

摘要/Abstract

摘要： 转炉液态渣的碱度(CaO/SiO₂)一般为2.8～4.2,热容2.5 kJ/(kg·℃),进入渣罐后的炉渣温度约为1 540℃,有良好的导电性,可以利用其热能和氧化钙。当70 t电弧炉兑加120 t转炉液态渣8 t,可使平均冶炼周期由52 min降至47 min,电耗由400 kWh/t降至355 kWh/t,石灰加入量由3.6 t降至1.0 t,氧气消耗由28 m~3/t降至25 m~3/t,可有效地节约资源和减少炉渣的排放。

Abstract: Generally, the basicity ( CaO/SiO2) of molten slag of BOF is 2. 8 ~ 4. 2, of which the heat capacity is 2. 5 kJ/ (kg, ℃), the temperature of slag as entering slag pot is about 1 540 ℃, and the molten slag has nice conductivity, therefore it is available to use molten slag's heat energy and calcium oxide. As 8 t molten slag of 120 t BOF is charged in 70 t electric arc furnace for arc furnace steelmaking, the average tap to tap time, electric consumption, lime adding amount and oxygen consumption decrease respectively from 52 min, 400 kWh/t, 3. 6 t and 28 m3/t to 47 min, 355 kWh/t, 1. 0 t and 25 m3/t, it is available to save the resource and decrease the slag discharged.

Key words: , BOF Molten Slag, Electric Arc Furnace, Hot Slag Charging Process, Electric Consumption, Lime Consumption

俞海明, 解英明, 陈跃军, 段建勇, 胡永胜, 兰飞鹏, 李栋, 王瑞利. 70 t电弧炉热兑转炉液态渣的工艺实践[J]. 特殊钢, 2012, 33(4): 36-38.

Yu Haiming, Xie Yingming, Chen Yuejun, Duan Jianyong, Hu Yongsheng, Lan Feipeng, Li Dong , Wang Ruili. Process Practice of BOF Molten Slag Charging in a 70 t Electric Arc Furnace[J]. Special Steel, 2012, 33(4): 36-38.