|本期目录/Table of Contents|

[1]陈金生,王兆丰,樊亚庆.水分自然侵入促进含瓦斯煤解吸效应实验研究[J].中国安全生产科学技术,2016,12(4):76-80.[doi:10.11731/j.issn.1673-193x.2016.04.014]
 CHEN Jinsheng,WANG Zhaofeng,FAN Yaqing.Experimental study on desorption promoting effect of coal containing gas by water natural invasion[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2016,12(4):76-80.[doi:10.11731/j.issn.1673-193x.2016.04.014]
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水分自然侵入促进含瓦斯煤解吸效应实验研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
12
期数:
2016年4期
页码:
76-80
栏目:
现代职业安全卫生管理与技术
出版日期:
2016-04-30

文章信息/Info

Title:
Experimental study on desorption promoting effect of coal containing gas by water natural invasion
作者:
陈金生12王兆丰12樊亚庆1
(1.河南理工大学 安全科学与工程学院,河南 焦作 454000;
2. 煤矿灾害预防与抢险救灾教育部工程研究中心,河南 焦作 454000)
Author(s):
CHEN Jinsheng12 WANG Zhaofeng12 FAN Yaqing1
(1. School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo Henan 454000, China;
2. MOE Engineering Center of Mine Disaster Prevention and Rescue, Jiaozuo Henan 454000, China)
关键词:
水分含瓦斯煤促进效应瓦斯置换量瓦斯置换率
Keywords:
water coal containing gas promotion effect gas replacement amount gas replacement rate
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2016.04.014
文献标志码:
A
摘要:
为定量研究水分自然侵入对含瓦斯煤解吸促进影响效果,利用自制的“高压吸附-水分自然侵入-数据自动采集”实验系统,对不同水分含量自然侵入含瓦斯煤后的瓦斯压力变化进行了连续监测。结果表明:水分侵入后依靠竞争吸附能置换出吸附瓦斯,从而促进含瓦斯煤瓦斯解吸,其促进效果与煤样含水率相关;当煤样含水率由2%增至12%时,瓦斯置换量由2.18ml/g增至4.48ml/g,瓦斯置换率由11.48%增至23.83%,煤样吸水饱和前,含水率Mad与瓦斯置换量Q和置换率η之间满足Q=1.695Mad/(1+0.3Mad)和η=8.85Mad/(1+0.29Mad)关系模型,煤样吸水饱和时,水分对瓦斯解吸的促进效果达到极限值;工程应用中可利用水分对瓦斯解吸的促进影响效应进一步提高瓦斯抽采率。
Abstract:
In order to quantitatively investigate the effect of water natural invasion on desorption promoting of coal containing gas, the change of gas pressure for coal containing gas by water natural invasion with different water content was continuously monitored by using the self-made "high pressure adsorption-water natural invasion-automatic data acquisition" experiment system. The results showed that the adsorbed gas could be replaced by competitive adsorption after water invasion, which could promote the gas desorption of coal containing gas, and the promotion effect was related to the water content of coal sample. When the water content increased from 2% to 12%, the gas replacement amount increased from 2.18 ml/g to 4.48 ml/g, and the gas replacement rate increased from 11.48% to 23.83%. Before water content reached the saturation, the water content Mad, gas replacement amount Q and gas replacement rate η met the relationship models Q=1.695Mad/(1+0.3Mad) and η=8.85Mad/(1+0.29Mad). The promoting effect of water on gas desorption stretched to the limit when the water content reached the saturation. The promoting effect of water on gas desorption can be using in engineering practice to further improve the gas drainage rate.

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备注/Memo

备注/Memo:
国家自然科学基金项目(51274090);河南省瓦斯地质与瓦斯治理重点实验室-省部共建国家重点实验室培育基地开放课题项目(WS2012B01)
更新日期/Last Update: 2016-05-05