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.
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 analyzed 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 had 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 had 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.
出处
《过程工程学报》
CAS
CSCD
北大核心
2018年第1期210-217,共8页
The Chinese Journal of Process Engineering
基金
国家自然科学基金资助项目(编号:51604208)
陕西省教育厅专项科研计划资助项目(编号:17JK0458)
关键词
高炉焦炭
粉化
溶损反应
功耗理论
blast furnace coke
degradation
solution loss reaction
power consumption theory
