|本期目录/Table of Contents|

[1]刘彦伟,张加琪,刘明举,等.水分对不同变质程度煤粒瓦斯扩散系数的影响[J].中国安全生产科学技术,2015,11(6):12-17.[doi:10.11731/j.issn.1673-193x.2015.06.002]
　LIU Yan-wei,ZHANG Jia-qi,LIU Ming-ju,et al.Influence of moisture content on gas diffusion coefficient of coal particles with different metamorphic degree[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2015,11(6):12-17.[doi:10.11731/j.issn.1673-193x.2015.06.002]
点击复制

水分对不同变质程度煤粒瓦斯扩散系数的影响
分享到：

《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
11
期数:
2015年6期
页码:
12-17
栏目:
学术论著
出版日期:
2015-06-30

文章信息/Info

Title:
Influence of moisture content on gas diffusion coefficient of coal particles with different metamorphic degree
作者:
刘彦伟1; 2; 3; 张加琪1; 2; 刘明举1; 2; 李亚鹏1; 2
(1.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，河南 焦作454003; 2.河南理工大学 安全科学与工程学院，河南 焦作 454003;3.煤炭安全生产河南省协同创新中心,河南 焦作454003)
Author(s):
LIU Yan-wei1; 2; 3;  ZHANG Jia-qi1; 2;  LIU Ming-ju1; 2;  LI Ya-peng1; 2
(1. Henan Province Key Laboratory of Gas Geology and Gas Control, State Key Laboratory Breeding Base of Provincial and MOE Jointed Established, Jiaozuo Henan 454003, China;2. School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo Henan 454003, China; 3. Collaborative Innovation Center of Coal Work Safety in Henan Province, Jiaozuo Henan 454003, China)
关键词:
水分; 变质程度; 瓦斯扩散系数; 瓦斯扩散机理
Keywords:
moisture content;  metamorphic degree;  gas diffusion coefficient;  gas diffusion mechanism
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2015.06.002
文献标志码:
A
摘要:
为了研究水分对不同变质程度煤粒瓦斯扩散系数的影响，利用自制设备，对不同煤阶的干燥煤、原煤、湿煤和平衡水煤样进行瓦斯吸附-解吸-扩散实验，分析扩散过程中不同时间段内水分与变质程度两个因素对扩散系数的影响。结果表明：水分的增加，导致瓦斯扩散系数随时间衰减程度变小。寺河矿干燥煤粒和平衡水煤粒在前120min内扩散系数较前5min分别减小了58.75%和53.2%；随着水分的增大，各变质程度煤样的瓦斯扩散系数比值增大。120min内干燥无烟煤扩散系数分别为瘦煤、气肥煤的1.04和2.37倍，平衡水无烟煤扩散系数分别为瘦煤、气肥煤的1.15和2.44倍；随着水分的增加，各煤阶瓦斯扩散系数减小幅度不同，且随着变质程度的减小，扩散系数的减小程度有变大趋势，前5min内随着水分从干燥煤增加到平衡水煤样，扩散系数减小幅度从无烟煤的72.77%增大到了气肥煤的83.49%。
Abstract:
In order to study the effect of moisture content on gas diffusion coefficient of coal particles with different metamorphic degree, the gas absorption, desorption and diffusion process of dry coal, raw coal, wet coal and equilibrium water coal samples with different coal ranks were experimental studied by using the self-made instrument. The influence of moisture content and metamorphic degree on diffusion coefficient in different period of diffusion process was analyzed. The results showed that the increase of moisture content leads to the attenuation degree of gas diffusion coefficient with time becoming smaller. The diffusion coefficients of dry and equilibrium water coal samples from Sihe coal mine decrease by 58.75% and 53.2% respectively in 120 min comparing with that in 5 min. With the increase of moisture content, the gas diffusion coefficient ratio of each coal sample with different metamorphic degree increases. The diffusion coefficient of dry anthracite is 1.04 and 2.37 times of lean coal and gas fat coal respectively in 120 min, and the diffusion coefficient of equilibrium water coal is 1.15 and 2.44 times of lean coal and gas fat coal respectively. The decrease range of gas diffusion coefficient with different metamorphic degree is different with increase of moisture content, and the decrease degree of diffusion coefficient has an enlarging trend with the decrease of metamorphic degree. The decrease range of diffusion coefficient increases from 72.77% of anthracite to 83.49% of gas fat coal with the moisture content increase from dry coal to equilibrium water coal in the first 5 min.

参考文献/References:

［1］刘明举，孔留安，郝富昌，等.水力冲孔技术在严重突出煤层中的应用［J］.煤炭学报，2005，30（4）：451-454 LIU Ming-ju，KONG Liu-an，HAO Fu-chang，et al. Application of hydraulic flushing technology in serve outburst coal［J］. Journal of China Coal Society，2005，30（4）：451-454
［2］赵振保.变频脉冲式煤层注水技术研究［J］.采矿与安全学报，2008，25（4）：484-489 ZHAO Zhen-bao.Study of technology of variable-frequency pulse water infusion into coal seam［J］.Journal of Mining & Safety Engineering，2008，25（4）：484-489
［3］余明高，赵志军，宋永立，等.煤矿灾害超前注水综合防治技术研究［J］.防灾减灾工程学报，2012，32（4）：502-508 YU Ming-gao，ZHAO Zhi-jun，SONG Yong-li，et al.Research on advanced water injection to integrated control of mine disasters［J］. Journal of Disaster Prevention and Mitigation Engineering，2012，32（4）：502-508
［4］李晓华，王兆丰，李青松，等.水分对新景矿3号煤层瓦斯解吸规律的影响［J］.煤炭科学技术，2011，39（5）：47-50 LI Xiao-hua，WANG Zhao-feng，LI Qing-song，et al.Moisture affected to gas desorption law of No.3 seam in Xinjing mine［J］.Coal Science and Technology，2011，39（5）：47-50
［5］陈向军，程远平，王林.外加水分对煤中瓦斯解吸抑制作用实验研究［J］.采矿与安全学报，2013，30（2）：296-301 CHEN Xiang-jun，CHENG Yuan-ping，WANG lin.Experimental study on the inhibition of injection water to the gas desorption of coal［J］. Journal of Mining & Safety Engineering，2013，30（2）：296-301
［6］张庆玲.煤储层条件下水分—平衡水分测定方法研究［J］.煤田地质与勘探，1999，27（4）：25-27 ZHANG Qing-ling.Research on determination measure of moisture and saturation moisture under reservoir condition［J］.Coal Geology & Exploration，1999，27（4）：25-27
［7］刘彦伟.煤粒瓦斯放散规律、机理与动力学模型研究［D］.焦作：河南理工大学（北京），2011
［8］杨其銮，王佑安.煤屑瓦斯扩散理论及其应用［J］.煤炭学报，1986(3)：87-94 YANG Qi-luan，WANG Shao-an.Theory of methane diffusion from coal cuttings and its application［J］. Journal of China Coal Society，1986(3)：87-94
［9］聂百胜，何学秋，王恩元，等.煤吸附水的微观机理［J］.中国矿业大学学报，2004，33（4）：379-383 NIE Bai-sheng，HE Xue-qiu，WANG En-yuan，et al.Micro-mechanism of coal adsorbing water［J］.Journal of China University of Mining & Technology，2004，33（4）：379-383
［10］孙丽娟.不同煤阶软硬煤的吸附-解吸规律及应用［D］.北京：中国矿业大学（北京），2013

相似文献/References:

[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.[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(6):76.[doi:10.11731/j.issn.1673-193x.2016.04.014]
[2]杨宏民,鲁小凯.变质程度对CO2置换煤中CH4效应的影响规律[J].中国安全生产科学技术,2017,13(9):41.[doi:10.11731/j.issn.1673-193x.2017.09.006]
　YANG Hongmin,LU Xiaokai.Influence laws of metamorphic degree on replacement effect of CO2 to CH4 in coal[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2017,13(6):41.[doi:10.11731/j.issn.1673-193x.2017.09.006]
[3]孙永鑫,王兆丰,尉瑞,等.覆压及水分对含瓦斯煤体渗吸特性的影响研究*[J].中国安全生产科学技术,2022,18(1):114.[doi:10.11731/j.issn.1673-193x.2022.01.018]
　SUN Yongxin,WANG Zhaofeng,YU Rui,et al.Study on influence of overburden pressure and moisture content on imbibition characteristics of coal containing gas[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2022,18(6):114.[doi:10.11731/j.issn.1673-193x.2022.01.018]
[4]张晓明,耿占芳,张河猛,等.水分对堆积状态褐煤自燃特性影响研究*[J].中国安全生产科学技术,2022,18(1):120.[doi:10.11731/j.issn.1673-193x.2022.01.019]
　ZHANG Xiaoming,GENG Zhanfang,ZHANG Hemeng,et al.Study on influence of moisture on spontaneous combustion characteristics of lignite in piling state[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2022,18(6):120.[doi:10.11731/j.issn.1673-193x.2022.01.019]
[5]司莎莎,王兆丰,刘帅强,等.冷冻取芯过程煤芯瓦斯解吸特性试验研究*[J].中国安全生产科学技术,2022,18(5):122.[doi:10.11731/j.issn.1673-193x.2022.05.019]
　SI Shasha,WANG Zhaofeng,LIU Shuaiqiang,et al.Experimental study on gas desorption characteristics of coal core in frozen coring process[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2022,18(6):122.[doi:10.11731/j.issn.1673-193x.2022.05.019]

备注/Memo

备注/Memo:
国家自然科学基金面上项目（51374095）；省部共建国家重点实验室培育基地（河南理工大学）开放基金（WS2012B02）；河南理工大学博士基金（B2013-005）
更新日期/Last Update: 2015-06-30