魏家地煤矿东102综放工作面煤尘运动规律数值模拟  

Numerical Simulation on Coal Dust Moving Laws at East 102 Fully Mechanized Caving Face in Weijiadi Coal Mine

作　　者：王青旦 张巨峰 李明 姜东 杨振东 李文忠 

机构地区：[1]靖远煤电有限责任公司魏家地煤矿,甘肃白银730913 [2]靖远煤电有限责任公司王家山煤矿,甘肃白银730913

出　　处：《煤矿安全》2013年第6期172-174,共3页Safety in Coal Mines

摘　　要：基于魏家地煤矿松软煤层特点,以东102综放工作面为研究对象,采用数值模拟与现场实测为技术手段,研究了综放工作面煤尘运动规律:采煤机割煤时下风向20～30 m范围内的煤尘浓度最大;而移架时煤尘浓度距移架处10～20 m范围内最大;放煤时只有放煤口处煤尘浓度最大。Based on the characteristics of Weijiadi Mine soft coal seam, taking East 102 fully mechanized caving face as the research object, dust movement laws of fully mechanized caving face are studied by numerical simulation and field measurement. The coal dust concentration is largest in range of the down wind 20 - 30 m when shearer cuts coal ; the dust concentration is largest from the support 10 - 20 m during moving support; and the dust concentration is largest at caving mouth during coal caving.

关 键 词：煤尘 运动规律 尘源 分布规律 防尘 

分 类 号：TD714.2[矿业工程—矿井通风与安全]