Rapid Water Injection Technology in Extremely Thin Coal Seam Working Face

摘要：

As the roof and floor of extremely thin coal seam affected largely by water, it is difficult to control the amount of water injection to the coal seam, which could easily lead to the poor working condition and affect safe production of working face. According to the study of water injection mechanism of thin coal seam working face and blasting mining technique, the rapid high-pressure water injection technology by blast hole was put forward, and the reasonable pressure, flow and water injection technique were determined. This way of water injection does not affect the production of working face and has good progress in both water injection and dustfall quantity through field test.The results show that the dedusting rate of total dust and respirable dust can be above 40％ and 22％ respectively.

关键词： Extremely thin coal seam Blasting mining Rapid water injection Craft

作者: MIAO Dejun CHENG Weimin ZhANG Shengzhu SUI Xiuhua

作者单位: Key laboratory of mine hazard prevention and control of China ministry of education, Shandong Univer Faculty of resources and safety engineering, China university of mining and technology (Beijing), Ch College of Mechanical and Electronic Engineering,Shandong University of Science and Technology, Chin

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: 256-261

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）