Journal:煤炭科学技术
Abstract:为准确辨识井下CO来源，查明CO异常涌出与浓度超限原因，更好指导煤矿安全生产工作。 以内蒙古串草圪旦煤矿为研究实例，统计了该矿井下6103、6104和6106工作面1 059个气样组分测试数据，分析了采煤工作面、密闭采空区CO浓度变化特征，确定了井下CO主、次要来源，探讨了地质因素、工程因素对CO浓度超限的影响。研究结果表明：所有统计气样中，CO与O2浓度具有较好的负相关性，CO浓度超限主要在工作面上隅角、支架、密闭采空区等通风条件较差的位置；CO主要来源于煤炭开采氧化自燃，局部存在煤天然氧化次生CO；开采煤层埋藏浅、小型逆断层发育及煤变质程度低是CO浓度超限的地质原因；工作面长度过大，通风方式不合理是CO浓度超限的工程原因；地质与工程因素共同作用下，煤炭开采氧化自燃CO与天然次生CO叠加涌出，导致在风流速度低的位置CO积聚而引起井下CO浓度超限。
First Author:周效志
Indexed by:Journal paper
Correspondence Author:桑树勋
Volume:49
Issue:2
Page Number:138-144
Translation or Not:no
Date of Publication:2021-02-17
Links to published journals:http://www.chinacaj.net/i,2,442871,0.html
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Associate professor
Supervisor of Master's Candidates
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School/Department:School of Resources and Geosciences
Administrative Position:Deputy Director of the Department
Education Level:With Certificate of Graduation for Doctorate Study
Business Address:CBM Development Laboratory in Wenchang Campus of China University of Mining and Technology
Gender:Male
Contact Information:cumtzxz@cumt.edu.cn
Degree:Doctor
Status:在岗
Academic Titles:Deputy director of Jiangsu low carbon society
Other Post:Member of Chinese Geological Society
Alma Mater:China University of Mining and Technology
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Honors and Titles:
中国自动化学会技术发明二等奖 2023-11-01
领跑者5000中国精品科技期刊顶尖学术论文 2022-12-29
2021年度中国地质学会地质类工程专业优秀本科毕业设计指导教师 2022-08-25
贵州省科技进步三等奖 2007-11-07
煤炭工业协会科技进步二等奖 2013-03-06
贵州省科技进步二等奖 2020-07-01
