彬长矿区三区联动立体抽采瓦斯技术

发布时间：2018-02-11 02:53

本文关键词： 瓦斯赋存三区联动瓦斯抽采瓦斯零超限　出处：《煤炭科学技术》2017年08期 　论文类型：期刊论文

【摘要】：为构建具有彬长矿区特色的瓦斯抽采三区联动技术理论研究体系及工程实践,以矿区瓦斯资源储量、分布特征为出发点,基于煤层瓦斯抽采机理,研究了"规划区、准备区、生产区"三区联动瓦斯抽采技术、井上下瓦斯抽采联动技术模式与工艺、地面抽采井对接联动井下瓦斯抽采孔技术、近距离煤层卸压联动立体式瓦斯防治技术等。通过研究与工程实践,实现矿区瓦斯三区联动抽采,促进矿井年抽采量逐年提升,从时间和空间上提前解决生产区域瓦斯问题,矿井瓦斯抽采率达到75%以上,煤层瓦斯含量由6.8 m~3/t快速降低至2.5 m~3/t以下,实现高瓦斯区域转为低瓦斯区域。同时在矿井实现瓦斯零超限的基础上,各采煤工作面风排瓦斯量保持在5 m~3/t以下,掘进工作面风排瓦斯量保持在3 m~3/t以下,并逐年降低,促进矿井实现本质安全、高效绿色开采。
[Abstract]:In order to construct the theoretical research system and engineering practice of the linkage technology of gas drainage in three areas with the characteristics of Bingchang mining area, taking the gas resource reserves and distribution characteristics of mining area as the starting point, based on the mechanism of coal seam gas drainage, this paper studies the "planning area, preparation area". Production area "three areas of gas extraction technology, up and down gas extraction technology model and technology, surface extraction wells linked to the underground gas extraction hole technology," Based on the research and engineering practice, the combined extraction of gas in three zones of mining area can be realized, which will promote the annual drainage of coal mine and solve the gas problem in production area in time and space in advance. The gas extraction rate of the mine is over 75%, and the gas content in the coal seam is rapidly reduced from 6.8 m ~ (3 / t) to less than 2.5 m ~ (3 / t), and the high gas area is transformed into the low gas area. At the same time, on the basis of the zero gas exceeding limit in the mine, The amount of gas discharged by air in each mining face is kept below 5 mm3 / t, and that in tunneling face is kept below 3 mm2 / 3 / t, which is reduced year by year, which promotes the realization of essential safety and high efficiency green mining in coal mine.
【作者单位】：陕西彬长大佛寺矿业有限公司;陕西彬长矿业集团有限公司;
【分类号】：TD712.62

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