钢包自开率的影响因素及改善措施

特殊钢 ›› 2012, Vol. 33 ›› Issue (4): 26-28.

钢包自开率的影响因素及改善措施

苏春阳, 潘明旭, 鲍家琳, 李光辉, 王品, 刘高利, 刘荣华, 罗时杰

湖北新冶钢有限公司炼钢事业部，黄石435001

收稿日期:2012-01-10 出版日期:2012-08-01 发布日期:2022-10-24
作者简介:苏春阳(1973-),男，工程师，部长,1995年湖南冶金工业大学毕业，洁净钢冶炼研究。

Influence Factors on Ladle Free-Opening Rate and Improving Measures

Su Chunyang, Pan Mingxu, Bao Jialin, Li Guanghui, Wang Pin, Liu Gaoli, Liu Ronghua , Luo Shijie

Steelmaking Division, Hubei Xinyegang Co Ltd, Huangshi 435001

Received:2012-01-10 Published:2012-08-01 Online:2022-10-24

摘要/Abstract

摘要： 统计分析了LZ20Mn2、20MnV6、20MnTiB等钢种钢水在钢包中停留时间(<135 min～>240 min),出钢温度(<1 640℃～>1 650℃),连铸平台钢水温度(<1 540℃～>1 580℃),钢中Mn含量(<0.5%～>1.3%)对70 t钢包水口自开率的影响。得出随着钢包停留时间延长,出钢温度和连铸平台钢水温度提高,以及钢中Mn含量的增加,钢包自开率可由98.8%降至76.8%。通过加强引流砂用前烘烤,及时清理钢包中残钢残渣,清扫水口,钢水在钢包中平均停留时间由原180 min降至160 min,使钢包自开率由原88.4%上升到97.3%。

关键词: 70t钢包, 含Mn低C钢, , 自开率, 钢包水口引流砂

Abstract: The Influence of liquid residence time in ladle (<135 min ~ >240 min), tapping temperature (<1 640 ℃ - > 1 650 ℃), temperature of liquid in ladle at casting station (<1 540 ℃～ >1 580 ℃), Mn content in steel (< 0. 5% - >1. 3%) for steelmaking the low carbon steels such as LZ20Mn2, 20MnV6 and 20MnTiB on free-opening rate of a 70-t ladle is statistically analyzed. It is obtained with prolonging residence time, increasing tapping temperature and temperature of liquid in ladle at casting station, and increasing Mn content in steel the ladle free-opening rate may decrease from 98. 8% to 76. 8%. With improving bake of packing sand for ladle sliding gate, in time clearing residual steel and slag in ladle, cleaning up nozzle, and decreasing average residence time of liquid in ladle to 160 min from original 180 min, the ladle free-opening rate increases to 97. 3% from original 88. 4%.

Key words: , 70 t Ladle, Low Carbon Steel Containing Mn, Free-Opening Rate, Ladle Nozzle Packing Sand

苏春阳, 潘明旭, 鲍家琳, 李光辉, 王品, 刘高利, 刘荣华, 罗时杰. 钢包自开率的影响因素及改善措施[J]. 特殊钢, 2012, 33(4): 26-28.

Su Chunyang, Pan Mingxu, Bao Jialin, Li Guanghui, Wang Pin, Liu Gaoli, Liu Ronghua , Luo Shijie. Influence Factors on Ladle Free-Opening Rate and Improving Measures[J]. Special Steel, 2012, 33(4): 26-28.

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