CN104747230B - 一种煤矿井瓦斯抽取装置及其使用方法 - Google Patents
一种煤矿井瓦斯抽取装置及其使用方法 Download PDFInfo
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- CN104747230B CN104747230B CN201510092690.2A CN201510092690A CN104747230B CN 104747230 B CN104747230 B CN 104747230B CN 201510092690 A CN201510092690 A CN 201510092690A CN 104747230 B CN104747230 B CN 104747230B
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 13
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- 230000002269 spontaneous effect Effects 0.000 description 14
- 238000002485 combustion reaction Methods 0.000 description 10
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 238000009825 accumulation Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 8
- 238000005065 mining Methods 0.000 description 7
- 230000003647 oxidation Effects 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- 239000002341 toxic gas Substances 0.000 description 5
- 239000002817 coal dust Substances 0.000 description 4
- 238000010790 dilution Methods 0.000 description 4
- 239000012895 dilution Substances 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 3
- 235000011613 Pinus brutia Nutrition 0.000 description 3
- 241000018646 Pinus brutia Species 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
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- 238000010276 construction Methods 0.000 description 2
- 208000002925 dental caries Diseases 0.000 description 2
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- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
Abstract
Description
序号 | 是否注入混合气体 | 混合注入比例(NO:CO2:N2) | 基坑内氧浓度 | 有火源时产生爆炸的几率 |
1 | 否 | 0 | 10%~15% | 68%~80% |
2 | 是 | 1:1:4 | 9%~13.5% | 38%~50% |
3 | 是 | 1:2:5 | 9.1%~12.3% | 30%~45% |
4 | 是 | 1:3:6 | 9.2%~13% | 29%~40.1% |
5 | 是 | 1:4:7 | 6%~11.9% | 0%~10% |
6 | 是 | 1:5:8 | 5.8%~11.3% | 0%~8% |
7 | 是 | 1:3:9 | 8%~12.1% | 5%~12% |
8 | 是 | 1:4:9 | 6%~10.2% | 0%~4% |
9 | 是 | 1:5:9 | 6.1%~8% | 0%~2.5% |
10 | 是 | 1:5:8 | 5.8%~8.3% | 0%~2.3% |
Claims (6)
Priority Applications (1)
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CN201510092690.2A CN104747230B (zh) | 2015-03-02 | 2015-03-02 | 一种煤矿井瓦斯抽取装置及其使用方法 |
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CN201510092690.2A CN104747230B (zh) | 2015-03-02 | 2015-03-02 | 一种煤矿井瓦斯抽取装置及其使用方法 |
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CN104747230A CN104747230A (zh) | 2015-07-01 |
CN104747230B true CN104747230B (zh) | 2016-10-19 |
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CN201510092690.2A Expired - Fee Related CN104747230B (zh) | 2015-03-02 | 2015-03-02 | 一种煤矿井瓦斯抽取装置及其使用方法 |
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CN (1) | CN104747230B (zh) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108412538B (zh) * | 2018-04-09 | 2023-04-11 | 贵州理工学院 | 一种用于煤矿的分段式氧气注入设备 |
CN109577922A (zh) * | 2018-11-29 | 2019-04-05 | 山西易高煤层气有限公司 | 一种煤层气增产的方法 |
CN112012786B (zh) * | 2020-09-11 | 2022-04-26 | 安徽理工大学 | 一种低瓦斯工作面采空区全密闭惰性气体置换方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0067427A2 (de) * | 1981-06-10 | 1982-12-22 | Maschinenfabrik Korfmann GmbH | Verfahren zum Absaugen von Gas im Steinkohlenbergbau und Absaugrohr zur Durchführung des Verfahrens |
CN200999628Y (zh) * | 2007-01-22 | 2008-01-02 | 郑州市光力科技发展有限公司 | 一种用于钻孔瓦斯抽放用导流管 |
CN202073589U (zh) * | 2010-12-10 | 2011-12-14 | 煤炭科学研究总院重庆研究院 | 反应型泡沫封孔多挡板密封装置 |
CN103233768A (zh) * | 2013-05-16 | 2013-08-07 | 延边耀天燃气集团有限责任公司 | 一种井下煤层水平钻孔分段压裂卸压方法 |
CN103899349A (zh) * | 2014-04-23 | 2014-07-02 | 重庆市能源投资集团科技有限责任公司 | 一种煤层瓦斯预抽采方法及抽采孔径向钻进导向装置 |
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2015
- 2015-03-02 CN CN201510092690.2A patent/CN104747230B/zh not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0067427A2 (de) * | 1981-06-10 | 1982-12-22 | Maschinenfabrik Korfmann GmbH | Verfahren zum Absaugen von Gas im Steinkohlenbergbau und Absaugrohr zur Durchführung des Verfahrens |
CN200999628Y (zh) * | 2007-01-22 | 2008-01-02 | 郑州市光力科技发展有限公司 | 一种用于钻孔瓦斯抽放用导流管 |
CN202073589U (zh) * | 2010-12-10 | 2011-12-14 | 煤炭科学研究总院重庆研究院 | 反应型泡沫封孔多挡板密封装置 |
CN103233768A (zh) * | 2013-05-16 | 2013-08-07 | 延边耀天燃气集团有限责任公司 | 一种井下煤层水平钻孔分段压裂卸压方法 |
CN103899349A (zh) * | 2014-04-23 | 2014-07-02 | 重庆市能源投资集团科技有限责任公司 | 一种煤层瓦斯预抽采方法及抽采孔径向钻进导向装置 |
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Effective date of registration: 20150810 Address after: 221000 Mining Science Center, Nanhu campus, China University of Mining and Technology, Jiangsu, Xuzhou Applicant after: Chen Baobao Address before: The collective 100000 Beijing city peace street Chaoyang District 13 No. 2 Coal Science Research Institute Applicant before: Wang Zhaodong |
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Address after: Chen Jia Guan Cun Hanting street 261000 Shandong province Weifang city Hanting District No. 125 Applicant after: Chen Baobao Address before: 221000 Mining Science Center, Nanhu campus, China University of Mining and Technology, Jiangsu, Xuzhou Applicant before: Chen Baobao |
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