| 焦炭强度变化及喷煤的影响 |
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| 引用本文： | 方觉,范兰涛,张志霞,李彩虹,吴雨晨.焦炭强度变化及喷煤的影响[J].钢铁,2009,44(9). |
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| 作者姓名： | 方觉 范兰涛 张志霞 李彩虹 吴雨晨 |
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| 作者单位： | 河北理工大学冶金与能源学院,河北唐山,063009 |
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| 基金项目： | 国家自然科学基金资助项目(50474078) |
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| 摘 要： | 对焦炭在高炉内的强度变化规律及喷煤的影响进行了研究。应用连续高炉块状带热模型得到失碳率和温度在块状带的分布;使用可调气氛高温抗压实验机测量了在高温下焦炭的抗压强度与失碳率的关系。推导出了不同的焦炭在高炉内实际抗压强度的计算公式,分析了喷煤和煤粉燃烧率对焦炭失碳率的影响,根据喷煤对焦炭强度的影响,给出了计算最佳煤粉燃烧率的方法。
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| 关 键 词： | 焦炭强度 喷煤 燃烧率 强度计算 |
Coke Strength and Its Influence on Coal Powder Injection |
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| FANG Jue,FAN Lan-tao,ZHANG Zhi-xia,LI Cai-hong,WU Yu-chen.Coke Strength and Its Influence on Coal Powder Injection[J].Iron & Steel,2009,44(9). |
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| Authors: | FANG Jue FAN Lan-tao ZHANG Zhi-xia LI Cai-hong WU Yu-chen |
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| Affiliation: | FANG Jue,FAN Lan-tao,ZHANG Zhi-xia,LI Cai-hong,WU Yu-chen(College of Metallurgy and Energy,Hebei Polytechnic University,Tangshan 063009,Hebei,China) |
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| Abstract: | Strength variation of coke and impact on coal powder injection have been studied.A continuous hot model of lumpish zone in blast furnace was used to get the relation between carbon loss rate of coke and temperature in lumpish zone.The compressive strengths of coke at high temperature with relevant carbon loss rate were measured by using a high temperature compressive machine with adjustable atmosphere.Formulas to calculate the real strengths of different kinds of coke in blast furnace were deduced.The influ... |
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| Keywords: | coke strength coal powder injection combustion rate strength calculation |
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