高噴煤比時高爐爐塵灰中含碳物質研究

吳鏗; 陳洪飛; 徐萬仁; 張海濱; 周翔; 費三林

doi:10.13374/j.issn1001-053x.2008.06.012

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驗證碼

高噴煤比時高爐爐塵灰中含碳物質研究

doi: 10.13374/j.issn1001-053x.2008.06.012

1. 北京科技大學冶金與生態工程學院, 北京 100083;
2. 寶山鋼鐵股份公司研究院煉鐵新技術研究所, 上海 201900

基金項目:

國家高技術研究發展計劃資助項目(No.2006AA06Z121)

詳細信息

作者簡介:
吳鏗(1951-),男,教授,博士,E-mail:wukeng1030@sina.com

中圖分類號: TF053
計量
- 文章訪問數: 141
- HTML全文瀏覽量: 39
- PDF下載量: 6
- 被引次數: 0
出版歷程
- 收稿日期: 2007-04-10
- 修回日期: 2007-05-15
- 網絡出版日期: 2021-08-06

Research on the carbonaceous substance of dust and sludge in BF at large pulverized coal injection rate

1. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China;
2. Ironmaking Research Lab of Baosteel Research Institute, Shanghai Baosteel Group Corp., Shanghai 201900, China

摘要

摘要: 測定了高噴煤比的高爐爐塵(重力灰和瓦斯灰)中礦物組成,給出了在不同煤比條件下未消耗焦炭和煤粉面積比.分析了高噴煤比對高爐爐塵中碳質量分數和未消耗煤粉比例的影響.確定了寶鋼高爐在高噴煤比時高爐爐塵中未消耗煤粉量、焦炭顆粒量和煤粉在高爐內的利用率.通過試驗發現,隨著噴煤比增加,爐塵量增加,但在高噴煤比后,爐塵量波動較大.高爐爐塵中未消耗碳量和煤粉量隨著噴煤比的增加逐漸增加,而未消耗焦炭量不受噴煤比變化的影響,基本上保持在3 kg·t^-1的水平,表明寶鋼高爐焦炭品質很高.
- 煉鐵 /
- 爐塵 /
- 高噴煤比 /
- 含碳物質
Abstract: The components and microstructure of BF dust (dust and sludge) in Baosteel BF at large pulverized coal injection (PCI) rate were investigated by microscopic analysis. The area percentages of unconsumed pulverized coal and coke particles were obtained at different PCI rates. The effect of large PCI rate on the mass fraction of carbon and the unconsumed pulverized coal ratio in BF dust was analyzed. The amounts of unconsumed pulverized coal and coke particles as well as the utilization rate of pulverized coal were tested in BF at large PCI rate. The experimental results showed that with increasing PCI rate the amount of BF dust increased, but at large PCI rate it fluctuated. With the increase in coal injection rate the amounts of carbon and unconsumed pulverized coal in BF dust increased, but the amount of unconsumed coke particles in BF dust hardly changed and kept at about 3 kg·t^-1. It is indicated that the quality of coke in Baosteel BF is very good.
- ironmaking /
- BF dust /
- large pulverized coal injection rate /
- carbonaceous substance