|本期目录/Table of Contents|

[1]刘金峰,张雷林,谢秀敏,等.热液侵蚀对煤物化结构与自燃特性的影响研究*[J].中国安全生产科学技术,2025,21(8):45-53.[doi:10.11731/j.issn.1673-193x.2025.08.006]
　LIU Jinfeng,ZHANG Leilin,XIE Xiumin,et al.Research on the effects of hydrothermal erosion on the physicochemical structure and spontaneous combustion characteristics of coal[J].Journal of Safety Science and Technology,2025,21(8):45-53.[doi:10.11731/j.issn.1673-193x.2025.08.006]
点击复制

热液侵蚀对煤物化结构与自燃特性的影响研究*

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

卷:
21
期数:
2025年8期
页码:
45-53
栏目:
学术论著
出版日期:
2025-08-30

文章信息/Info

Title:
Research on the effects of hydrothermal erosion on the physicochemical structure and spontaneous combustion characteristics of coal
文章编号:
1673-193X(2025)-08-0045-09
作者:
刘金峰; 张雷林; 谢秀敏; 高原
（1.安徽理工大学 安全科学与工程学院，安徽 淮南 232001；
2.安徽理工大学 煤炭高效开采省部共建教育部重点实验室，安徽 淮南 232001）
Author(s):
LIU Jinfeng;  ZHANG Leilin;  XIE Xiumin;  GAO Yuan
(1.School of Safety Science and Engineering ,Anhui University of Science & Technology,Huainan Anhui 232001,China;
2.Key Laboratory of Safe and Effective Coal Mining Ministry of Education,Anhui University of Science & Technology,Huainan Anhui 232001,China)
关键词:
热液侵蚀; 自燃特性; 孔隙结构; 自由基; 官能团
Keywords:
hydrothermal erosion;  spontaneous combustion characteristics;  pore structure;  free radicals;  functional groups
分类号:
TD75；X936
DOI:
10.11731/j.issn.1673-193x.2025.08.006
文献标志码:
A
摘要:
为揭示深部矿井热液侵蚀对煤物化结构与自燃特性的影响规律，以朱集西矿1/3焦煤为研究对象，采用低温液氮吸附（LTNA）、傅里叶红外光谱（FTIR）、电子顺磁共振（ESR）和同步热分析（STA）等实验方法，研究25，40，50 ℃热液侵蚀30 d后煤样（记为T25，T40，T50）的孔隙结构、官能团、自由基及燃烧特性变化规律。研究结果表明：随着侵蚀温度升高，煤样比表面积逐渐减小，由原煤的0.704 1 m2/g降至T50的0.378 6 m2/g，总孔体积和平均孔径逐渐增大，分别由原煤的0.002 90 mL/g增至T50的0.003 54 mL/g和由原煤的17.054 1 nm增至T50的25.764 9 nm；脂肪烃基（—CH2、—CH3）和羟基（—OH）含量较原煤分别增加1.06百分点（T50），0.98百分点（T50）和3.45百分点（T50），自由基浓度（Ng）随氧化温度升高呈现指数增长特征；临界温度T1，干裂温度T2及质量峰值温度T3变化显著，较原煤分别降低14.43 ℃（T50），21.47 ℃（T50）和20.14 ℃（T50），低温氧化阶段放热量最大提升94.38%，表观活化能最大降低5.40 kJ/mol；随着侵蚀温度的升高，热液侵蚀煤自燃特性逐渐增强。研究结果可为深部矿井煤自燃精准防控技术的开发提供基础理论指导。
Abstract:
In order to investigate the effects of hydrothermal erosion on the physicochemical structure and spontaneous combustion characteristics of coal in deep mines,1/3 coking coal from Zhujixi Mine was studied.Low-temperature liquid nitrogen adsorption (LTNA),Fourier transform infrared spectroscopy (FTIR),electron paramagnetic resonance (ESR),and simultaneous thermal analysis (STA) were used to examine changes in pore structure,functional groups,free radicals,and combustion properties after the coal samples were exposed to hydrothermal erosion at 25,40,and 50 ℃ for 30 days (labeled as T25,T40,T50).The results indicate that as the erosion temperature rose,the specific surface area of coal samples gradually decreased from 0.704 1 m2/g (raw coal) to 0.378 6 m2/g (T50).Conversely,the total pore volume and average pore diameter gradually increased from 0.002 90 mL/g (raw coal) to 0.003 54 mL/g (T50) and from 17.054 1 nm (raw coal) to 25.764 9 nm (T50),respectively.The contents of aliphatic hydrocarbon groups (—CH2,—CH3) and hydroxyl groups (—OH) increased by 1.06 percentage points (T50),0.98 percentage points (T50),and 3.45 percentage points (T50) compared to raw coal.The free radical concentration (Ng) exhibited exponential growth with increasing oxidation temperature.Critical temperature (T1),dry cracking temperature (T2),and peak mass loss rate temperature (T3) exhibited significant changes,decreasing by 14.43 ℃ (T50),21.47 ℃ (T50),and 20.14 ℃ (T50),respectively,compared to the raw coal.The heat release during low-temperature oxidation increased peaked at a 94.38% increase,while the apparent activation energy reached a maximum decrease of 5.40 kJ/mol.Furthermore,the spontaneous combustion propensity of hydrothermally eroded coal progressively intensifies with higher erosion temperature.These findings provide fundamental theoretical insights to guide the development of precise prevention and control technologies for coal spontaneous combustion in deep mines.

参考文献/References:

［1］秦波涛,仲晓星,王德明,等.煤自燃过程特性及防治技术研究进展［J］.煤炭科学技术,2021,49(1):66-99. QIN Botao,ZHONG Xiaoxing,WANG Deming,et al.Research progress of coal spontaneous combustion process characteristics and prevention technology［J］.Coal Science and Technology,2021,49(1):66-99.
［2］蓝航,陈东科,毛德兵.我国煤矿深部开采现状及灾害防治分析［J］.煤炭科学技术,2016,44(1):39-46. LAN Hang，CHEN Dongke，MAO Debing.Current status of deep mining and disaster prevention in China［J］.Coal Science and Technology,2016,44(1):39-46.
［3］谢和平.深部岩体力学与开采理论研究进展［J］.煤炭学报,2019,44(5):1283-1305. XIE Heping.Research review of the state key research development program of China:deep rock mechanics and mining theory［J］.Journal of China Coal Society,2019,44(5):1283-1305.
［4］李红阳,朱耀武,易继承.淮南矿区地温变化规律及其异常因素分析［J］.煤矿安全,2007(11):68-71.
［5］彭涛,吴基文,任自强,等.淮北煤田现今地温场特征及大地热流分布［J］.地球科学(中国地质大学学报),2015,40(6):1083-1092. PENG Tao,WU Jiwen,REN Ziqiang,et al.Distribution characteristics of current geothermal field and terrestrial heat flow in Huaibei coalfield［J］.Earth Science-Journal of China University of Geosciences,2015,40(6):1083-1092.
［6］HU D,PAN R,CHAO J,et al.Spontaneous combustion characteristics of hydrothermal erosion coal from deep mining and its microscopic mechanism［J］.Energy,2024,314:134268.
［7］潘荣锟,胡代民,贾海林,等.深部开采高温热液侵蚀煤自燃特性［J］.煤炭学报,2024,49(4):1906-1916. PAN Rongkun,HU Daimin,JIA Hailin,et al.Spontaneous combustion characteristics of hydrothermal eroded coal in deep mining［J］.Journal of China Coal Society,2024,49(4):1906-1916.
［8］SONG B,ZHAI X,MA T,et al.Effect of water immersion on pore structure of bituminous coal with different metamorphic degrees［J］.Energy,2023,274:127449.
［9］邓存宝,乔玲,王雪峰,等.浸水褐煤的自燃特性及红外分析［J］.中国安全科学学报,2018,28(8):105-110. DENG Cunbao,QIAO Ling,WANG Xuefeng,et al.Spontaneous combustion characteristics and infrared analysis of soaked lignite［J］.China Safety Science Journal,2018,28(8):105-110.
［10］郑凯月,杨永良,苗国栋,等.浸水过程对采空区遗煤自燃特性影响机理［J］.燃烧科学与技术,2021,27(6):665-674. ZHENG Kaiyue,YANG Yongliang,MIAO Guodong,et al.Influence mechanism of water soaking process on spontaneous combustion characteristics of goaf residual coal［J］.Journal of Combustion Science and Technology,2021,27(6):665-674.
［11］NIU H Y,SUN Q Q,BU Y C,et al.Study of the microstructure and oxidation characteristics of residual coal in deep mines［J］.Journal of Cleaner Production,2022,373:133923.
［12］马冬娟,唐一博.高地温对不同变质程度煤自燃微观结构影响试验研究［J］.煤炭科学技术,2019,47(12):109-115. MA Dongjuan,TANG Yibo.Experimental investigation on microstructure influence of high temperature on spontaneous combustion of coal with different ranks［J］.Coal Science and Technology,2019,47(12):109-115.
［13］HU X,CAI J,YAO Y,et al.The influence mechanism of thermal invasion on spontaneous combustion of different coals using continuous adiabatic heating and non-isothermal oxidation method［J］.Case Studies in Thermal Engineering,2024,64:105565.
［14］林海飞,卜婧婷,严敏,等.中低阶煤孔隙结构特征的氮吸附法和压汞法联合分析［J］.西安科技大学学报,2019,39(1):1-8. LIN Haifei,BU Jingting,YAN Min,et al.Joint analysis of pore structure characteristics of middle and low rank coal with nitrogen adsorption and mercury intrusion method［J］.Journal of Xi’an University of Science and Technology,2019,39(1):1-8.
［15］ZHANG L,WEN C,LI S,et al.Evolution and oxidation properties of the functional groups of coals after water immersion and air drying［J］.Energy,2024,288:129709.
［16］李金虎,黄珏洁,陆伟,等.煤中高活性含碳固体自由基与煤自燃反应性的相关关系［J］.煤炭科学技术,2024,52(12):127-142. LI Jinhu,HUANG Juejie,LU Wei,et al.Correlation between highly active carbon-containing solid free radicals and spontaneous combustion reactivity of coal［J］.Coal Science and Technology,2024,52(12):127-142.
［17］FAN J,LI J,ZHANG J,et al.Study on spontaneous combustion characteristics and microstructure of bituminous coal under water immersion［J］.ACS Omega,2024,9:35950-35960.
［18］李亚清,欧霖峰,李星,等.煤自燃热失重特征规律及关键官能团研究［J］.中国安全生产科学技术,2024,20(2):118-124. LI Yaqing,OU Linfeng,LI Xing,et al.Study on thermogravimetric characteristics and key functional groups of coal spontaneous combustion［J］.Journal of Safety Science and Technology,2024,20(2):118-124.
［19］步允川,牛会永,邱天,等.预氧化浸水煤体表面结构变化及复燃特性［J］.中国安全生产科学技术,2021,17(11):32-39. BU Yunchuan,NIU Huiyong,QIU Tian,et al.Surface structure changes and re-ignition characteristics of pre-oxidized water-immersed coal［J］.Journal of Safety Science and Technology,2021,17(11):32-39.
［20］李雪明,王继仁,王雪峰,等.碱性水对煤自燃特性影响实验研究［J］.中国安全生产科学技术,2018,14(2):106-111. LI Xueming,WANG Jiren,WANG Xuefeng,et al.Experimental study on effect of alkaline water on spontaneous combustion characteristics of coal［J］.Journal of Safety Science and Technology,2018,14(2):106-111.

相似文献/References:

[1]皮子坤,董子文,李锐.水化煤饱和-风干过程的自燃特性实验研究[J].中国安全生产科学技术,2019,15(9):94.[doi:10.11731/j.issn.1673-193x.2019.09.015]
　PI Zikun,DONG Ziwen,LI Rui.Experimental study on spontaneous combustion characteristics of hydrated coal during saturationair drying process[J].Journal of Safety Science and Technology,2019,15(8):94.[doi:10.11731/j.issn.1673-193x.2019.09.015]

备注/Memo

备注/Memo:
收稿日期： 2025-05-10
* 基金项目： 国家自然科学基金项目（51874008，52474202）；安徽省自然科学基金杰青项目（2408085J032）
作者简介： 刘金峰，硕士研究生，主要研究方向为火灾防治技术与理论。
通信作者： 张雷林，博士，教授，主要研究方向为煤自燃防治、防灭火材料开发、矿井瓦斯防治。
更新日期/Last Update: 2025-09-01