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›› 2014, Vol. 14 ›› Issue (5): 896-900.

• 材料工程专栏 • 上一篇    

高炉喷吹半焦及其性能分析

杨双平 蔡文淼 郑化安 梁洁旗 张生军 薛其才   

  1. 西安建筑科技大学冶金工程学院 西安建筑科技大学冶金工程学院 陕西煤业化工技术研究院有限责任公司 西安建筑科技大学冶金工程学院 陕西煤业化工技术研究院有限责任公司 陕西煤业化工技术研究院有限责任公司
  • 收稿日期:2014-07-23 修回日期:2014-08-21 出版日期:2014-10-20 发布日期:2014-10-20
  • 通讯作者: 蔡文淼

Performance Analysis of Semi-coke for Blast Furnace Injection

YANG Shuang-ping CAI Wen-miao ZHENG Hua-an LIANG Jie-qi ZHANG Sheng-jun XUE Qi-cai   

  1. Metallurgical Engineering, Xi'an University of Architecture and Technology Metallurgical Engineering, Xi'an University of Architecture and Technology Shaanxi Coal and Chemical Technology Institute Co.,Ltd Metallurgical Engineering, Xi'an University of Architecture and Technology Shaanxi Coal and Chemical Technology Institute Co.,Ltd Shaanxi Coal and Chemical Technology Institute Co.,Ltd
  • Received:2014-07-23 Revised:2014-08-21 Online:2014-10-20 Published:2014-10-20
  • Contact: CAI Wen-miao

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摘要： 对2种高炉喷吹用煤和3种半焦的可磨性指数、着火点、爆炸性、灰熔点及燃烧性进行了研究，考察了5种原料的冶金性能及配煤对高炉喷吹性能的影响，确定了合理的配煤方案. 结果表明，高炉喷吹煤粉配加半焦后，混合煤的可磨性增加，爆炸性减弱，着火点降低，灰熔点提高，燃烧率约为85%. 半焦配比达40%时，混合煤用于高炉喷吹可行，并可获得更优良的冶金性能.

关键词: 高炉, 半焦, 喷吹, 配煤, 燃烧性

Abstract: Based on the physical and process properties of 2 kinds of pulverized coal and 3 kinds of semi-coke, including ash fusion point, grindability index, ignition point, explosibility and combustibility, all the properties of bituminite, anthracite and semi-coke are evaluated, and eventually reasonable solutions of coal blending are established. The results showed that pulverized coal injection with addition of semi-coke, the blended coal grindability increased, explosibility weakened, ignition point decreased, the ash fusion point rose and their combustion rates were both above 85%. Moreover when the semi-coke ratio reached 40%, the blended coal for blast furnace injection was viable and would obtain more excellent metallurgical properties.

Key words: blast furnace, semi-coke, injection, coal blending, combustibility

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