摘要
为抑制煤巷瓦斯抽采钻孔施工干式钻孔作业时粉尘扩散速度,降低作业点粉尘浓度,保证作业人员健康及矿井安全生产,通过对土城煤矿粉尘浓度及分散度进行测量分析,设计了钻机孔口专用降尘装置,控制和降低粉尘向巷道空间运移扩散。现场安装使用后,作业点下风侧5m处,最高降尘率达94%。
In order to restrain the dust diffusion speed during dry drilling operation of gas drainage drilling in coal roadway,reduce the dust concentration at the operation point,and ensure the health of the operators and the safe production of the mine,through the measurement and analysis of the dust concentration and dispersion of Tucheng Coal Mine,a special dust reduction device at the drill hole is designed to control and reduce the dust migration and diffusion to the tunnel space.After installation and use on site,the maximum dust reduction rate is 94%at 5m downwind side of the operation point.
作者
张辉元
李远知
Zhang Hui-yuan;Li Yuan-zhi(Tucheng Mine of Panjiang Clean Coal Co.,Ltd.,Guizhou Liupanshui 553529)
出处
《山东煤炭科技》
2020年第6期98-100,共3页
Shandong Coal Science and Technology
关键词
干式钻孔作业
降尘装置
粉尘防治
dry drilling operations
dust control device
dust control
