The Analysis of Optimum Velocity for Dust Prevention and Numerical Simula- tion in Fully-Mechanized Coal Faces

摘要：

The dust occurs in coal cutting and ventilation is helpful to mining prevent its concentration if the velocity is proper. It should blow out the floating dust without influencing the fallen one. A mathematical model of dust movement is derived from the gas-solid two-phase flow theory. According to the characteristics of the fully-mechanized coal face and survey data, for the two dust sources with different inlet velocity, numerical simulation of the dust movement rule is made with CFD software Fluent. The result shows that the optimum velocity is not more than 3 m.s-1.

关键词： Fully-mechanized coal face Dust The optimum velocity Gas-solid two-phase flow Movement rule Numerical simulation

作者: WU Lirong CHENG Weimin YAO Yujing ZHANG Jiacai

作者单位: Beijing University of Science and Technology, Beijing 100083, China Shandong University of Science Shandong University of Science and Technology, Qingdao 266510, Shandong,China

会议类型: 国际会议

会议名称: 2010 International Conference on Mine Hazards Prevention and Control(第二届矿山灾害预防与控制国际学术会议 ICMHPC)

会议地点: 青岛

会议语种:英文

页码: 269-274

在线出版日期: 2010-10-15（万方平台首次上网日期，不代表论文的发表时间）