低钛高炉渣排碱能力研究

董晓旭; 张淑会; 兰臣臣; 吕庆

doi:10.7513/j.issn.1004-7638.2016.06.018

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低钛高炉渣排碱能力研究

doi: 10.7513/j.issn.1004-7638.2016.06.018

华北理工大学冶金与能源学院, 教育部现代冶金技术重点实验室, 河北唐山 063009

基金项目:

河北省钢铁联合基金资助项目(E2015209073)；华北理工大学杰出青年基金资助项目(JP201508)

详细信息

作者简介:
董晓旭(1990-),男,河北张家口人,硕士生,主要从事炼铁理论与工艺研究,E-mail:694003293@qq.com

通讯作者:
张淑会(1976-),女,河北定州人,博士,教授,主要从事炼铁理论与工艺研究,E-mail:zhangshuhui@heuu.edu.cn

中图分类号: TF534
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- 被引次数: 0
出版历程
- 收稿日期: 2016-04-08

Study on Dealkalization Capacity of BF Slag with Low Titanium Content

College of Metallurgy & Energy, North China University of Science and Technology, Ministry of Education Key Laboratory of Modern Metallurgy Technology, Tangshan 063009, Hebei, China

摘要

摘要: 针对某钢厂高炉低钛渣系的排碱能力进行试验,研究w_(CaO)/w_(SiO₂)、w_(MgO)、w_(Al₂O₃)、w_(TiO₂)以及初始碱含量对炉渣排碱能力的影响。结果表明:随炉渣w_(CaO)/w_(SiO₂)的提高,炉渣中w_(MgO)和初始碱含量的增加,高炉渣的排碱能力都逐渐降低;随炉渣中w_(Al₂O₃)的提高,炉渣的排碱能力逐渐增强;炉渣的排碱能力随w_(TiO₂)的增加有小幅度的降低。建议高炉生产应适当的降低炉渣w_(CaO)/w_(SiO₂),炉渣的w_(CaO)/w_(SiO₂)应保持在1.05到1.10左右;适当降低w_(MgO),炉渣w_(MgO)含量保持在7%~8%左右;适当增加w_(Al₂O₃),降低w_(TiO₂);减少碱金属的入炉量,降低高炉碱负荷。
- 高炉 /
- 高炉渣 /
- 碱金属 /
- 外矿 /
- 排碱能力
Abstract: According to the dealkalization capacity of blast furnace(BF) slag with low titanium content in an integrated iron and steel company were tested and analyzed, the effects of w_CaO/w_{SiO₂,w_MgO,w_{Al₂O₃,w_{TiO₂ and initial alkali content on dealkalization capacity of BF slag were studied.The results show that:with the increase of w_CaO/w_{SiO₂,w_MgO and initial alkali content,the dealkalization capacity of BF slag decreases gradually.With the increase of w_{Al₂O₃,the dealkalization capacity of BF slag increa-ses.The dealkalization capacity increases slowly with the increase of w_{TiO₂.w_CaO/w_{SiO₂ and w_MgOshould be properly reduced in BF production,w_CaO/w_{SiO₂ and w_MgOshould be kept at 1.05~1.10 and 7%~8%.w_{Al₂O₃can be appropriately increased,w_{TiO₂can be decreased appropriately.The amount of alkali entering into the BF should be reduced,in order to reduce the degree of harmness to the BF.}}}}}}}}}}
- blast furnace /
- BF slag /
- alkali /
- imported ore /
- dealkalization capacity