高炉钛煤混喷工业试验

董亚锋; 郭培民; 刘克明; 翟丹

doi:10.7513/j.issn.1004-7638.2020.06.018

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高炉钛煤混喷工业试验

doi: 10.7513/j.issn.1004-7638.2020.06.018

董亚锋^1,2,
郭培民^1, ,,
刘克明²,
翟丹²

1. 钢铁研究总院, 北京 100801;
2. 新冶高科技集团有限公司, 北京 100081

基金项目:

国家自然科学基金委员会—中国宝武钢铁集团有限公司钢铁联合重点研究基金资助(U1560201)

详细信息

作者简介:
董亚锋(1983-),男,湖北枣阳人,博士研究生,主要工作方向:炼铁技术开发,E-mail:dyf205@126.com

通讯作者:
郭培民(1975-),男,安徽含山人,教授级高工,博士生导师,通讯作者,主要研究方向:炼铁新技术,guopm@pku.org.cn

中图分类号: TF823,TF538.6
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- 被引次数: 0
出版历程
- 收稿日期: 2020-09-24

Industrial Test of Titanium Powder and Pulverized Coal Co-injection

1. Central Iron & Steel Research Institute, Beijing 100081, China;
2. New Metallurgy Hi-tech Group Co., Ltd., Beijing 100081, China

摘要

摘要: 钛煤混喷是将富钛粉加入原煤中制成钛煤粉,从风口喷入高炉的工艺过程。为验证钛煤混喷的实际效果,在国内某2 500 m³级高炉进行了钛煤混喷工业试验。试验结果显示,钛煤混喷可利用原有喷煤设施进行。在喷吹入炉钛负荷为3.7 kg/t时,铁水[Ti]含量达到0.13%,同样铁水[Ti]含量则需炉顶钛矿带入TiO₂负荷为7.7 kg/t,钛煤混喷时钛的还原率明显高于炉顶加入钛矿。炉缸二段冷却水温差数据基本保持稳定。炉缸下部和炉底的维护需要更为综合性的措施。
- 高炉 /
- 钛煤混喷 /
- 护炉 /
- 铁水 /
- 还原率
Abstract: Titanium powder and pulverized coal co-injection is the process in which rich titanium powder is mixed with raw coal and injected into blast furnace through tuyeres.The industrial test of titanium powder and pulverized coal co-injection was carried out in a 2 500 m³ blast furnace to verify the practical effect.The experimental result showed that the process can be carried out by the existing PCI system.The [Ti] in hot metal reached 0.13% when the injection TiO₂ was 3.7 kg/t,while the same percent of [Ti]in hot metal needed 7.7 kg/t TiO₂ being added from the top of the furnace as titanium ore.The reduction utilization rate of TiO₂ from titanium-coal mixture was obviously higher than that of the titanium ore.The temperature difference of the cooling water in the second section of the hearth remained stable during the test.The maintenance of the lower part and the bottom of the hearth needs more integrated measures.
- BF /
- titanium powder and pulverized coal co-injection /
- hearth protection /
- hot metal /
- reduction ratio