巨野矿区煤自燃特性及动力学研究

马砺; 任立峰; 王乃国; 李珍宝

doi:10.3969/j.issn.1001-1986.2016.06.006

巨野矿区煤自燃特性及动力学研究

马砺^1,2,4,
任立峰^1,4, ,,
王乃国³,
李珍宝^1,4

1. 西安科技大学西部矿井开采及灾害防治教育部重点实验室, 陕西西安 710054;
2. 兖矿集团博士后工作站, 山东邹城 237500;
3. 山东新巨龙能源有限责任公司, 山东菏泽 274918;
4. 西安科技大学能源学院, 陕西西安 710054

基金项目:

国家自然科学基金项目（51574193）

详细信息

作者简介:
马砺(1978-),男,四川隆昌人,教授,从事安全工程及技术专业方向的科研与教学工作.E-mail:malifuture@126.com

通讯作者:
任立峰(1988-),男,陕西宝鸡人,博士研究生,从事煤矿重大灾害防治技术研究工作.E-mail:lifengrr@126.com

中图分类号: P618
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出版历程
- 收稿日期: 2015-08-08
- 网络出版日期: 2021-10-22

Characteristics of coal spontaneous combustion and kinetics in Juye mining area

MA Li^1,2,4,
REN Lifeng^1,4, ,,
WANG Naiguo³,
LI Zhenbao^1,4

1. Key Laboratory of Western Mine Exploration and Hazard Prevention of the Ministry of Education, Xi'an University of Science and Technology, Xi'an 710054, China;
2. Postdoctoral workstation of Yanzhou Mining Group, Zoucheng 273513, China;
3. Shandong Xinjulong Energy Limited Liability Company, Heze 274918, China;
4. College of Energy Science and Engineering, Xi'an University of Science and Technology, Xi'an 710054, China

Funds:

National Natural Science Foundation of China(51574193)

摘要

摘要: 针对巨野矿区3号煤层自然发火严重的现状，选择巨野矿区3^上和3^下两煤层煤样，采用煤的物性参数测试、热重分析、傅里叶红外光谱测试等实验方法，进行巨野矿区3煤层的自燃特性及动力学参数实验研究。结果表明，巨野矿区煤属于Ⅱ类自燃煤，煤的孔隙主要以大孔和中孔为主；煤在失水失重与吸氧增重阶段的活化能分别为94.49~123.61 kJ/mol和231.50~241.08 kJ/mol；煤分子中含有大量的羟基、甲基、亚甲基等活性官能团，这些活性官能团是导致巨野矿区煤自燃的关键化学结构。
- 煤自燃 /
- 煤活性官能团 /
- 特征温度 /
- 活化能
Abstract: Considering the situation that the spontaneous combustion of coal seam No.3 in Juye mining area is serious, coal samples from upper seam 3 and lower seams 3 were selected as research object. In this paper, coal physical parameters test, thermogravimetric analysis and Fourier infrared spectrum were used to conduct experimental study on the characteristics of spontaneous combustion and kinetic parameters of seam 3 in Juye mining area. Experimental results show that coal of Juye mining area belongs to the class Ⅱof spontaneous combustion coal, and the coal pores are mainly macropore and mesopore; Activation energy of coal is 94~123 kJ/mol in the stage of weight loss induced by dehydration, 230~240 kJ/mol in the stage of weight gain induced by oxyge uptake. Coal molecule contains a large number of active functional groups, including hydroxyl, methyl and methylene, which are the key chemical structure leading to spontaneous combustion of coal in Juye mining area.
- coal spontaneous combustion /
- active functional groups of coal /
- characteristic temperature /
- activation energy