提高入LF钢水酸溶铝合格率的工艺优化

炼钢 ›› 2015, Vol. 31 ›› Issue (6): 57-.

提高入LF钢水酸溶铝合格率的工艺优化

鞍钢集团 1.钢铁研究院，辽宁鞍山 114009；2.鞍钢股份有限公司鲅鱼圈钢铁分公司，辽宁营口 115007

接受日期:1900-01-01 出版日期:2015-12-05

Process optimization of improving acid-soluble aluminiumqualified rate in liquid seel into LF

Accepted:1900-01-01 Online:2015-12-05

摘要/Abstract

摘要： 针对入LF钢水酸溶铝合格率比较低的现状，对不合格的炉次进行了统计分析，发现入LF酸溶铝合格率低的主要受转炉冶炼过程控制影响，对转炉冶炼过程控制进一步分析发现，出钢下渣、碳温不协调、铝收得率不稳定是3个主要影响因素。对这3个影响因素进行分析，提出相应的工艺管理制度和改进措施，使入LF钢水酸溶铝的合格率由81 %提高到了88 %。

关键词: 铝镇静钢, LF, 酸溶铝

Abstract: Aimed to the problem of low qualified rate of acidsoluble aluminum in liquid steel from converter into ladle furnace, the statistical analysis was carried out based on unqualified samples. The results showed that the low qualified rate was mainly affected by the smelting process control in the converter; through further study for the process control, three main influencing factors for low qualified rate were slag in tapping, inconsistent carbon and temperature, and unstable aluminum yield. Then detailed analyses were performed for above three influencing factors, and according process management system and improvement measures were proposed based on the analysis conclusions, thus the qualified rate of acid-soluble aluminum from converter into LF furnace was increased from 81 % to 88 %.

Key words: Al-killed steel, ladle furnace, acidsoluble aluminum

李德军1，许孟春1，刘清海2，张宁1，于赋志1. 提高入LF钢水酸溶铝合格率的工艺优化[J]. 炼钢, 2015, 31(6): 57-.

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