4005回采工作面瓦斯综合治理技术及应用研究

发布时间：2018-04-30 19:24

本文选题：近距离煤层 + 回采工作面　；参考：《辽宁工程技术大学》2015年硕士论文

【摘要】：煤炭是中国的主体能源和重要的工业原料。矿井瓦斯灾害一直是制约我国煤炭资源开采的瓶颈,与瓦斯灾害相应的防治研究也是各高校、研究院所及煤炭企业安全工作的重中之重。近20多年来,在瓦斯灾害预测、瓦斯灾害治理技术和安全生产管理等方面都取得了不错的成果,并有效地改善了煤矿安全状况。近距离煤层群的回采工作面瓦斯涌出的影响因素众多,如上下邻近层和本煤层的瓦斯含量、瓦斯压力,开采方法和工艺,通风方式与工作面风量,围岩性质等。对不同条件下的回采工作面其对应的瓦斯综合治理技术措施也不尽相同。本文以珲春某矿4005工作面为工程案例,利用理论分析、现场试验和数据统计分析等方法对工作面瓦斯综合治理技术的参数确定及应用效果进行分析。在对国内外工作面瓦斯灾害治理技术研究的基础上,分析了4005工作面瓦斯超限的主要原因为,并取得了理想的治理效果：工作面上隅角瓦斯浓度和回风巷瓦斯浓度分别由原来的4.6%-27%、1.46%将到1%以下,超限次数由原来的每天十几次降到了2个月内3次,大大提高了4005工作面的生产效率。
[Abstract]:Coal is China's main energy and important industrial raw materials. The mine gas disaster has been a bottleneck restricting the exploitation of coal resources in China. The prevention and control research corresponding to the gas disaster is also the most important task in the safety work of universities, research institutes and coal enterprises. In the past 20 years, good results have been achieved in gas disaster prediction, gas disaster control technology and production safety management, and the safety situation of coal mines has been effectively improved. There are many factors affecting gas emission in coal face of close distance coal seam group, such as gas content, gas pressure, mining method and technology, ventilation mode and working face air volume, surrounding rock property and so on. The technical measures of gas comprehensive control in different mining face are also different. Taking 4005 face of Hunchun Mine as an engineering case, this paper analyzes the parameter determination and application effect of comprehensive gas control technology in working face by means of theoretical analysis, field test and statistical analysis of data. On the basis of the research on gas disaster control technology of working face at home and abroad, the main reasons of gas exceeding limit in 4005 working face are analyzed. The ideal control effect has been obtained: the gas concentration in the upper corner of the working face and the gas concentration in the return air roadway will be below 1% from 4.6- 27% respectively, and the frequency of exceeding the limit will be reduced from a dozen times a day to three times within 2 months. The production efficiency of 4005 face is greatly improved.
【学位授予单位】：辽宁工程技术大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TD712

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