高沼气综采工作面瓦斯涌出规律及其处理技术

Law and Technical Treatment of Gas Emission in Highly Gassy Mine

分析了阳泉矿务局多煤层开采综采工作面瓦斯涌出特征以及瓦斯涌出量和产量的关系,阐明了处理综采工作面瓦斯的按术措施及收到的效果。

Since the application of fully mechanized coal mining in Yangquan Coal mine Admini.tration, Shanxi, the percentage of the coal production from the fully mechanized mining coalfaces has been continuously increased in the total production of the Administration and the coal production has reached to 55.42% of the total production. The max. face production is up to 110,000 t/month and 6,000 t/day. Those have obviously shown the advantages of the fully mechanized mining. This paper discussed the characteristics of the gas emission from highly gassy coalfae in multi-seam mining. Based on great information from site investigation and measurement, the paper analyzed and studied the relationship between the coal production and gas emission at a normal production condition of a coalface. The paper has given a formulation for the relationship. After the measurement and study of gas sources from mining seam and adjacent seam, the paper provided the gas emission Law of the mining seam and adjacent seam which is used in mine practice. In the end of the paper, it presented the technical recautions and results of gas control technology in the coalface.