1) methane drawing
瓦斯抽取
2) gas drainage
瓦斯抽放
1.
Design and application of horizontal long borehole for gas drainage in seam roof;
煤层顶板瓦斯抽放水平长钻孔的设计与应用
2.
Mechanism and application research of gas drainage in high level drainage tunnel by water sealing system;
水封式高位抽放巷道瓦斯抽放机理和应用研究
3.
A preliminary study on water sealing tunnel drainage technology for gas drainage;
水封式巷道瓦斯抽放技术探讨
4) discharging gas
抽放瓦斯
1.
Drilling technology of long hole using for discharging gas from coal seams;
抽放瓦斯顺煤层长钻孔施工技术
2.
With depth increasing of discharging gas horizontal drilling hole in coal mine of our country,the ratio that drilling hole met soft rock is increasing.
泥岩、泥质页岩、泥质砂岩等地质软岩是煤系地层的重要组成部分,随着我国煤矿井下抽放瓦斯水平孔孔深的增加,钻进过程中遇到软岩的几率增加,因此分析软岩成孔影响因素并采取相应的钻进技术措施,是提高煤矿抽放瓦斯钻孔成孔率的重要研究内容。
5) gas extraction
瓦斯抽采
1.
Test results of surface gas extraction technology from boreholes in the goaf in Zhangbei Coal Mine, Huainan Mining Group are introduced in the paper.
文章对采空区瓦斯抽采技术的研究和推广应用具有一定的指导意义。
2.
Based on gas storage characteristic of coal seams,a gas extraction method used in coal mines is discussed.
分析了“先抽后采”概念的内涵及对煤矿瓦斯治理的作用,在研究煤矿煤层瓦斯赋存特点的基础上,综合分析了煤矿瓦斯抽采方法,结合煤矿瓦斯治理的实例和煤矿重特大瓦斯事故案例,对我国煤矿瓦斯治理提出了以下建议,即在有条件的情况下尽可能优先采用区域性瓦斯治理方法,强突出危险煤层和超大井型高瓦斯矿井必须采用区域性瓦斯治理方法。
3.
Secondly, according to the occurrence condition of far distance coal seams in this area, numerical model was set up to simulate rock stratum displacement law, pressure relief’s characteristics and deformation rule of protected coal seam, which provided a theoretical foundation to realise the harmonic mining of gas extraction and coal.
最后,根据采动过程中远程被保护煤层卸压增透特性研究结果,对平顶山矿区远程保护层开采卸压瓦斯强化抽采方案,以及瓦斯抽采和煤层开采的协调关系进行了初步分析。
6) methane drainage
瓦斯抽放
1.
In this paper, layout parameters and technology of deep hole standing shot and methane drainage holes is discussed and implemented plan is designed, test in Panyi Coal Mine shows that it is a very good path to improve methane drainage efficiency by using deep hole standing shot technology in low permeability coal seam.
本文探讨了深孔松动爆破孔和瓦斯抽放孔的布置参数及工艺等 ,并设计了实施方案。
2.
the author of this paper has come to the conclusion that the prospect of methane drainage in the mine is wide-with an ideal methane generation and store type.
瓦斯抽放的前景广阔;文中还对该矿瓦斯抽放与利用方式进行探讨。
3.
Aiming at the problems of methane accumulation at upper corner angle in coal faces of U-type ventila-tion system,applying percolation theory,gas diffusion law and the law of mass conservation,the mathematical pattern of methane drainage from drills along roof strike was established.
理论研究与现场实践均表明:顶板走向钻孔抽放采空区瓦斯是解决高瓦斯工作面上隅角瓦斯积聚的一种行之有效的措施;顶板裂隙程度和状态是影响瓦斯抽放量的主要因素,将钻孔布置在适当的裂隙带中,瓦斯抽放浓度可达30%～90%,抽放负压可达50～55 kPa;数值模拟方法研究采空区瓦斯运移等工程实际问题是可行的。
补充资料：抽取反应
分子式：
CAS号：
性质：辐照生成的活性粒种(离子、激发分子、自由基)从其他分子中抽取1个1价原子(通常是H)的反应。可表示为：A++HR→AH++R•、A*+HR→AH•+R•、A•+HR→AH+R• (自由基通常从有机化合物中抽取氢和卤素原子)。
CAS号：
性质：辐照生成的活性粒种(离子、激发分子、自由基)从其他分子中抽取1个1价原子(通常是H)的反应。可表示为：A++HR→AH++R•、A*+HR→AH•+R•、A•+HR→AH+R• (自由基通常从有机化合物中抽取氢和卤素原子)。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条