Study on the Numerical Simulation of Wind-force Slag Discharge Progress

摘要：

In view of the slag discharge problems in the process of drilling long drillings along the seam, it describes the principles and the basic conditions of the wind - force slag discharge method, and illuminates the determination of two parameters : the minimum wind velocity of slag discharge and the required wind pressure.With the FLUENT fluid calculation software, it simulates the pressure loss, the wind velocity variation and the cinder particles motion in the whole flow field in the process of drilling.Finally, it gives the velocity vector of the airflow in the drilling, the motion trace of the cinder particles, the law that the velocity of the airflow in the drilling stem bore varies with the depth, the law that the velocity of the cinder particles varies with the changes of time and the length of the drilling, the law that the velocity of airflow varies with the changes of the drillings depth, the law that the static pressure of the drilling varies with the changes of the drillings length.This paper provides basis for solving the problems existed in utilizing the wind - force slag discharge method.

关键词： wind-force slag discharge wind velocity variation pressure loss depth of drilling particle motion numerical simulation law of changes

作者: Li Zhi Jiang Qi

作者单位: College of Safety Science and Engineering,Liaoning Technical University,Fuxin,123000,China Zhaozhuang Coal Mining Company Limited of Jincheng Mining Group,Jincheng,048000,China

会议类型: 国际会议

会议名称: the 4th International Symposium on Mine Safety (2012) 第四届国际矿山安全学术研讨会(2012)

会议地点: 阜新

会议语种:英文

页码: 559-564

在线出版日期: 2012-08-04（万方平台首次上网日期，不代表论文的发表时间）