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我国煤矿矿井设计中兼顾瓦斯抽放的对策论析
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作者 李鹏 《内蒙古煤炭经济》 2019年第15期62-62,82,共2页
煤矿产业作为我国工业产业的重要支撑,随着煤矿产业水平的不断提高,遵循科学发展观,坚持可持续发展。随着煤矿采深不断加深,煤矿防突问题日渐严峻,所以优化和完善工作面设计中的瓦斯抽放设计工作显得尤为重要。尽管我国煤矿瓦斯抽放技... 煤矿产业作为我国工业产业的重要支撑,随着煤矿产业水平的不断提高,遵循科学发展观,坚持可持续发展。随着煤矿采深不断加深,煤矿防突问题日渐严峻,所以优化和完善工作面设计中的瓦斯抽放设计工作显得尤为重要。尽管我国煤矿瓦斯抽放技术十分先进,但是与西方发达国家相比,依然存在一些技术和管理方面的漏洞,以及人员与设备方面的不足。基于此,本文将通过阐述煤矿瓦斯抽放的重要性,在此基础上分析了煤矿瓦斯抽放中存在的主要问题,并提出行之有效的应对策略,以期为推进煤矿行业安全进步贡献自己的一份力量。 展开更多
关键词 瓦斯抽放设计 问题 对策
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平煤四矿己15-23-110工作面瓦斯抽采设计 被引量:3
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作者 盛巍 《内蒙古煤炭经济》 2015年第6期106-108,共3页
结合平煤四矿矿井地质条件,详细分析了23110综采工作面瓦斯抽放的必要性和可行性,并制定了该工作面的瓦斯抽放方案,同时提出抽放管路设计及抽放泵选型方法,为矿井安全生产提供了保证。
关键词 涌出量 瓦斯抽放设计 必要性
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双柳煤矿33410综采工作面瓦斯抽采设计 被引量:2
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作者 王升荣 《山西建筑》 2013年第20期96-98,共3页
结合双柳煤矿矿井地质条件,详细地分析了33410综采工作面瓦斯抽放的必要性和可行性,并制定了该工作面的瓦斯抽采方案,同时提出了抽放管路设计及抽放泵选型方法,为相同条件的矿井工作面瓦斯抽采设计提供了借鉴经验。
关键词 综采工作面 瓦斯抽放设计 本煤层 地质条件
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Theory of gas extraction from coal seams and its use 被引量:5
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作者 FAN Xi-sheng 《Journal of Coal Science & Engineering(China)》 2012年第3期276-279,共4页
Gas extraction is one of the main measures of control and use of gas of coal mines. At present, the design method is under the experimental period and do not satisfy the need of practice. In this paper, the theory of ... Gas extraction is one of the main measures of control and use of gas of coal mines. At present, the design method is under the experimental period and do not satisfy the need of practice. In this paper, the theory of gas extraction of coal seams based upon Darcy law was studied. Mathematical model of gas extraction of coal seams was established and two kinds of solv- ing approaches based on computer software and linear approximation were given. The rightness and the validities of the model were examined with a practical example. Results obtained can be used to determine and optimize the parameters related etc. 展开更多
关键词 coal seam gas gas extraction linear approximation
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Flexible gel(FG) for gas-drainage drilling sealing material based on orthogonal design
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作者 Zhai Cheng Xu Jizhao +1 位作者 Xiang Xianwei Zhong Chao 《International Journal of Mining Science and Technology》 SCIE EI CSCD 2015年第6期1031-1036,共6页
Aiming to resolve the technical problems of lower gas concentrations and a reduced effective drainage period caused by gas-drainage borehole fracture development, a flexible gel (FG) gas-drainage borehole sealing ma... Aiming to resolve the technical problems of lower gas concentrations and a reduced effective drainage period caused by gas-drainage borehole fracture development, a flexible gel (FG) gas-drainage borehole sealing material was developed that adapts to borehole deformation. In this study, based on orthogonal tests, the effect of the ratio of material to water, stirring time and stirring speed on the viscosity, filtration property, water retention and pumpability of the FG were studied. The results indicate that the stirring speed, ratio of material to water and stirring time in turn increased the viscosity and the ratio of material to water, stirring time and stirring speed enhanced the filtration property and water retention. The FG pumps smoothly and achieves the optimal state of high water retention, low fluid loss and low viscosity when the ratio of material to water is 1:10, the stirring speed is 800 r/min, and the stirring time is 12 min. The field test results indicate that, after using the FG, the average drainage gas concentration increases by 25.9% and 27.6g and the average negative pressure of extraction increases by 2.7 kPa and 3.5 kPa com- pared with expansive cement and polyurethane, respectively. 展开更多
关键词 Gas drainageFlexible gelOrthogonal designLiquidityFiltration propertyWater retention
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