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[1]朱令起,刘可忻,王晓磊.腐朽坑木与煤混合物升温氧化特性研究*[J].中国安全生产科学技术,2021,17(1):149-154.[doi:10.11731/j.issn.1673-193x.2021.01.024]
　ZHU Lingqi,LIU Kexin,WANG Xiaolei.Study on heating oxidation characteristics of decayed wood and coal mixture[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2021,17(1):149-154.[doi:10.11731/j.issn.1673-193x.2021.01.024]
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腐朽坑木与煤混合物升温氧化特性研究*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
17
期数:
2021年1期
页码:
149-154
栏目:
职业安全卫生管理与技术
出版日期:
2021-01-31

文章信息/Info

Title:
Study on heating oxidation characteristics of decayed wood and coal mixture
文章编号:
1673-193X(2021)-01-0149-06
作者:
朱令起; 刘可忻; 王晓磊
（1.华北理工大学 矿业工程学院，河北 唐山 063210；
2.河北省矿业开发与安全技术重点实验室，河北 唐山 063210）
Author(s):
ZHU Lingqi;  LIU Kexin ;  WANG Xiaolei
(1.College of Mining Engineering,North China University of Science and Technology,Tangshan Hebei 063210,China;
2.Hebei Provincial Key Laboratory of Mining Development and Safety Technology,Tangshan Hebei 063210,China)
关键词:
煤自燃; 预测指标气体; 程序升温; 曲线拟合; 燃点测定
Keywords:
coal spontaneous combustion;  prediction index gas;  programmed heating;  curve fitting;  determination of ignition point
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2021.01.024
文献标志码:
A
摘要:
为研究煤层及腐朽坑木着火特性，采集巷道内腐朽坑木与煤样并进行混合，对其混合物进行燃点测定和程序升温实验；通过对不同煤木混合物在升温过程中产生气体的规律性进行分析，优选出混合物产生的单一气体指标及复合指标。研究结果表明：随朽木在混合物中的比例上升，混合物燃点呈下降趋势，且CO，C2H4等指标气体出现更早，CO产生量更大；腐朽坑木达到燃点后会发生阴燃并逐渐升温引燃煤炭，加速煤氧化进程，最终导致火灾的发生；CO，CO/CO2比值、ICO指标可作为本煤层着火主要预测指标气体及指标，C2H4，C2H6可作为辅助指标气体；该方法可准确判定煤火灾发生发展程度，对实际生产具有理论指导意义。
Abstract:
In order to study the ignition characteristics of coal seam and decayed pit wood,the decayed pit wood and coal samples in the roadway were collected for measuring the ignition point of the mixture and conducting the programmed heating experiments.Through the analysis on the regularity of gas generated during the heating process of different coal and wood mixtures,the single gas index and composite index produced by the mixture were optimally selected.The results showed that with the increase of the proportion of wood in the mixture,the ignition points of the mixture with different woodcoal ratios presented a downward trend,and the index gases such as CO and C2H4 appeared earlier,and the CO production was larger.When the decayed pit wood reached the ignition point,the smoldering would occur,and it gradually heated up and ignited the coal,which accelerated the coal oxidation process and eventually led to the fire.The CO,CO/CO2 ratio and ICO indexes can be used as the main prediction indexes of coal seam fire,and assisting with C2H4,C2H6 index gases,the development degree of coal fire can be accurately determined,which has theoretical guiding significance for the actual production.

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备注/Memo

备注/Memo:
收稿日期： 2020-08-18
* 基金项目： 国家自然科学基金项目（51474086）
作者简介： 朱令起，博士，教授，主要研究方向为矿井火灾。
通信作者： 刘可忻，硕士研究生，主要研究方向为矿井火灾。
更新日期/Last Update: 2021-02-04