研究生学术报告预告登记(开题、中期、答辩)

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报告人: 张泽
学号: 1017214036
学院: 环境科学与工程学院
报告类型: 其他学术报告
日期: 2022年04月10日
时间: 09:30
地点: 重庆
导师: 张书廷
题目: Study on the force and flow characteristics of coal particles in top-charged coke oven during charging with dense phase flow
内容提要:

A new method of coking coal charged into 400kg top-charge coke oven, in which cylinder with telescopic and high temperature resistant is used to fill the coking chamber with dense phase continuous flow. Based on this method, theoretical analysis, calculation and numerical simulation were used to study the forces and motion of coal particles and gas phase resistance under the conditions of temperature gradient and different falling height during charging. According to the research, we found that coal particles are affected by the resistance of airflow, thermophoretic force, gravity, Saffman lift force and collision force. Larger particles is mainly determined by gravity, while the smaller particles is mainly determined by particle collision and thermophoretic force plays an important role for Medium diameter particles. With the increase of the blanking height, the escape amount and escape velocity of particles on both sides of cylinder outlet increased, and different blanking heights have different effects on gas-solid coupling characteristics.

图片:
登记人: 张泽
登记时间: 2022年02月19日 星期六 12:18