破碎理论在焦炭粉化行为中的应用及分析

doi:10.12034/j.issn.1009-606X.217211

过程工程学报 ›› 2018, Vol. 18 ›› Issue (1): 210-217.DOI: 10.12034/j.issn.1009-606X.217211

破碎理论在焦炭粉化行为中的应用及分析

刘起航^1*, 张亚楠¹, 吴铿²

1. 西安建筑科技大学冶金工程学院，陕西西安 710055；2. 北京科技大学冶金与生态工程学院，北京 100083

收稿日期:2017-04-10 修回日期:2017-06-01 出版日期:2018-02-22 发布日期:2018-01-29
通讯作者: 刘起航 liuqihang2@126.com
基金资助:
高炉内焦炭高温气化-粉化效应与机制

Analysis and Application of Broken Theory in the Process of Coke Degradation

Qihang LIU^1*, Yanan ZHANG¹, Keng WU²

1. School of Metallurgical Engineering, Xi?an University of Architecture and Technology, Xi?an, Shaanxi 710055, China; 2. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China

Received:2017-04-10 Revised:2017-06-01 Online:2018-02-22 Published:2018-01-29

摘要/Abstract

摘要： 在两种经典功耗理论的基础上，建立了考虑溶损反应和焦炭性质的粉碎功耗理论方程，通过溶损反应和高温抗压实验分析了失碳率和温度对焦炭粉化能耗的影响. 在实验分析焦炭粉碎功与内能转化的基础上，将温度引入功耗方程中，预测了溶损焦炭在不同温度下的粉碎粒径. 结果表明，输入功对焦炭的粉碎粒径有较大影响，且随溶损率增加而增强，常温下的转鼓实验验证了该功耗方程对溶损焦炭的适用性. 高温对焦炭粉碎粒径有较大影响，且随失碳率和输入功增加而明显增强.

关键词: 高炉焦炭, 粉化, 溶损反应, 功耗理论

Abstract: A power consumption equation for coke degradation was established based on the two kinds of quintessential volume hypothesis which was the theory about energy-size of comminution. The effect of gasification reaction and temperature on energy consumption of coke degradation was analysed by gasification and high temperature compressive experiments. The energy conversion between the external mechanical work and internal energy of cokes was analyzed by high temperature compressive experiments, and then the parameter of temperature was introduced into the power consumption equation. The degradation rate of gasified coke at different temperatures were predicted by the improved power consumption equation. The results showed that the coke degradation rate was significantly affected by the input power which has a greater impact on the more reacted cokes, and the drum experiment was conducted to verify the applicability of power consumption equation for gasified coke degradation at room temperature. The temperature has a significant influence on the coke degradation behavior, and the more input power for the system, the greater the influence of temperature on the gasified coke degradation.

刘起航张亚楠吴铿. 破碎理论在焦炭粉化行为中的应用及分析[J]. 过程工程学报, 2018, 18(1): 210-217.

Qihang LIU Yanan ZHANG Keng WU. Analysis and Application of Broken Theory in the Process of Coke Degradation[J]. Chin. J. Process Eng., 2018, 18(1): 210-217.

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破碎理论在焦炭粉化行为中的应用及分析

Analysis and Application of Broken Theory in the Process of Coke Degradation

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