[1]于志金,翟小伟,马灵军,等.工作面回撤期间煤自燃高温区域演化规律模拟[J].西安科技大学学报,2016,(05):628-632.[doi:10.13800/j.cnki.xakjdxxb.2016.0504]
 YU Zhi-jin,ZHAI Xiao-wei,MA Ling-jun,et al.Evolutional law simulation of high temperature zone of coal spontaneous combustion during retreating period of mining face[J].Journal of Xi'an University of Science and Technology,2016,(05):628-632.[doi:10.13800/j.cnki.xakjdxxb.2016.0504]
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工作面回撤期间煤自燃高温区域演化规律模拟(/HTML)
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西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2016年05期
页码:
628-632
栏目:
出版日期:
2016-09-30

文章信息/Info

Title:
Evolutional law simulation of high temperature zone of coal spontaneous combustion during retreating period of mining face
文章编号:
1672-9315(2016)05-0628-05
作者:
于志金12翟小伟12马灵军3董 伟34景巨栋34 马 腾12
1.西安科技大学 能源学院,陕西 西安 710054;
2.教育部 西部矿井开采及灾害防治重点实验室,陕西 西安 710054;
3.神华宁夏煤业集团有限责任公司,宁夏 银川 750002;
4.神华宁夏煤业集团有限责任公司 羊场湾煤矿,宁夏 银川 750002
Author(s):
YU Zhi-jin12ZHAI Xiao-wei12MA Ling-jun3 DONG Wei34JING Ju-dong34MA Teng12
1.College of Energy Science and Engineering,Xi'an University of Science and Technology,Xi'an 710054,China;
2.Key Laboratory of Western Mine Exploration and Hazard Prevention,Ministry of Education,Xi'an 710054,China;
3.Shenhua Ningxia Coal Mining Group Corporation Ltd,Yinchuan 750002,China;
4.Yangchangwan Mine,Shenhua Ningxia Coal Mining Group Co., Ltd.,Yinchuan 750002,China
关键词:
耦合原理 数值模拟 采空区 燃烧 回撤
Keywords:
coupling principle numerical simulation mining-out area burning retreating
分类号:
X 936
DOI:
10.13800/j.cnki.xakjdxxb.2016.0504
文献标志码:
A
摘要:
为掌握综放工作面停采回撤期间由于煤氧化升温而产生的温度异常区域的动态演化规律,进而科学地指导防灭火措施的高效应用。以典型工作面为背景,基于煤自燃过程的耦合原理与实验得出的数据参数,利用COMSOL软件对采空区遗煤的氧化升温过程进行了数值模拟。结果表明:工作面回撤时期,在漏风较为稳定的条件下,煤体持续氧化升温采空区内的高温区域会逐渐形成于靠近漏风源的进、回风两侧距工作面3~10 m范围内,并随着时间推移,温度呈非线性升高的特征。如不采取有效的防治措施,燃烧则会在进风一侧距工作面3~5 m区域内率先发生。通过现场实践,利用模拟得出规律成功地指导了现场工作面的回撤,证明了模拟结果能够正确地反应采空区温度分布的变化趋势。
Abstract:
Grasping the evolutional law of temperature abnormal region due to the self-heating of coal during retreating period of full-mechanized mining face,is a scientific guidance for effective application of fire prevention measures.Taking the typical working face as the background,based on the coupling principle of coal spontaneous combustion and data from experiment,numerical simulation is carried out by COMSOL software.The results show that during retreating period of face,on the conditions of the stability of air leakage,coal will be oxidized with the temperature rising constantly.High temperature zone will be formed gradually on both sides of air intake and return where close to air leakage source and 3~10 m from the face in mining-out area,and with time goes,temperature rises constantly.If not to take effective measures to control,burning will first happy in the side of air intake from working face 3~5 m.The conclusions have been drawn from simulated results to guide the mining face retreat successfully,and the simulated results are validated it,which can correctly reflect the variation tendency of temperature distribution in mining-out area.

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备注/Memo

备注/Memo:
收稿日期:2016-05-20 责任编辑:刘 洁
基金项目:国家自然科学基金青年基金(51404195); 陕西省重点科技创新团队计划(2012KCT-09)
通讯作者:于志金(1989-),男,汉,黑龙江双鸭山人,博士研究生,E-mail:yuzhijin0927@126.com
更新日期/Last Update: 2015-10-30