| 顶底复吹转炉冶炼低碳钢的工艺研究 |
| |
| 引用本文： | 王海奇,包燕平. 顶底复吹转炉冶炼低碳钢的工艺研究[J]. 特殊钢, 2010, 31(6): 28-31 |
| |
| 作者姓名： | 王海奇 包燕平 |
| |
| 作者单位： | 1湖南华菱涟源钢铁集团，娄底417009； 2北京科技大学冶金与生态工程学院，北京100083 |
| |
| 摘 要： | 以实际生产数据为依据,分析研究涟钢1座100 t顶底复吹转炉冶炼低碳钢08Al(%:≤0.08C、0.17～0.37Si、0.25～0.65Mn、≤0.030P、≤0.030S、0.015～0.65Als)的工艺。发现其冶炼后期底吹强度足,导致部分钢水过氧化,实际终点碳氧浓度积与理论的平衡值有一定偏差;转炉终渣碱度在4～5时,磷、硫在渣-钢间的分配系数最大,脱磷、脱硫效果最好,其终点[C]高,(FeO)低,炉渣氧化性低,不利于脱磷但利于脱硫;冶炼终点钢水温度越低,[C]越高,钢水、炉渣氧化性越低,钢水中残锰含量越高。
|
| 关 键 词： | 顶底复吹转炉 低碳钢 冶炼工艺 |
| 收稿时间： | 2010-05-15 |
A Study on Process for Melting Low Carbon Steel by Top and Bottom Combined Blown Converter |
| |
| Wang Haiqi,Bao Yanping. A Study on Process for Melting Low Carbon Steel by Top and Bottom Combined Blown Converter[J]. Special Steel, 2010, 31(6): 28-31 |
| |
| Authors: | Wang Haiqi Bao Yanping |
| |
| Affiliation: | 1 Hunan Valin Lianyuan Iron and Steel Co Ltd, Loudi 417009;2 School of Metallurgical and Ecological Engineering, University of Science and Technology, Beijing 100083 |
| |
| Abstract: | Based on real production data, the process for melting low carbon steel 08Al (% : ≤0. 08C, 0. 17 - 0. 37Si, 0. 25 〜0. 65Mn, ≤0. 030P, W0. 030S, 0. 015 〜0. 065 Als) by an 100 t top and bottom combined blown converter at Lianyuan Steel has been analyzed and studied. It is found that its bottom blowing is intense in later period led to part liquid over-oxidation, and there is a definite deviation between the real end [C] [O] and the theoretical equilibrium [ C] [O] product; as basicity of converter end slag is 4 ~ 5 , the distribution coefficient of phosphorus and sulphur between liquid steel and slag is largest and the effect of dephosphorization and desulphurization is best, while higher end [C] , lower (FeO) and lower oxidability of slag are unfavourable to dephosphorization but favourable to desulphurization； and the lower encl temperature of melting liquid steel, higher [C] and lower oxidability of liquid and furnace slag, the higher the residual manganese content in liquid steel. |
| |
| Keywords: | |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《特殊钢》浏览原始摘要信息 |
|
点击此处可从《特殊钢》下载免费的PDF全文 |
|
