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煤矿井下CO来源辨识与浓度超限原因研究——以内蒙古串草圪旦煤矿为例
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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

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Contact Information:cumtzxz@cumt.edu.cn

Degree:Doctor

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Academic Titles:Deputy director of Jiangsu low carbon society

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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

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