Vol. 43 No. 3 Jun.2016
矿业安全与环保
MINING SAFETY & ENVIRONMENTAL PROTECTION
第43卷第3期 2016年6月
张建业，陈举师，孙新.漏风测定和煤温监测防治采空区煤炭自燃技术[J].矿业安全与环保，2016,43(3)：60-63 文章编号：10084495(2016)030060-04
漏风测定和煤温监测防治采空区煤炭自燃技术
张建业，陈举师”，孙新
（1.中国船舶重工集团公司第七O二研究所，江苏无锡214082；
2.北京科技大学土木与环境学院，北京100083）
摘要：选取SF。作为示踪气体，分别采用瞬时释放法和连续释放法对7312-2回采工作面邻近采空区漏风进行了定性和定量测定，并应用热电偶测温探头对邻近采空区煤温进行监测，得出漏风通道和漏风风速以及邻近采空区煤温的变化规律。研究结果表明，7312老空区向7312-2工作面回风巷漏风，最小漏风风速为0.00955m/s，缩面拆架过程采空区遗煤氧化，煤温持续升高至35℃，印证了漏风检测结果。通过采取堵漏和采空区灌浆等措施，有效解决了漏风和采空区煤炭自燃间题。
关键词：采空区；漏风测定；温度监测；煤炭自燃；防治措施
中图分类号：TD75*2.2；X936
文献标志码：B
网络出版时间：2016-06-0518：07
网络出版地址：http：//www.cnki.net/kcms/detail/50.1062.TD.20160605.1807.024.html
ControlTechnologyforCoal SpontaneousCombustioninGobsBased on
Air Leakage Determination and Coal Temperature Monitoring
ZHANG Jianye',CHEN Jushi”,SUN Xin
(1. No. 702 Research Institute, CSIC, Wuxi 2/4082, China;
2. School of Ciril and Environmental Engineering, University of Science and Technology Bejing, Beijing 100083, China) Abstract: SF, is selected as the trace gas, the qualitative and quantitative determination of the air leakage in the adjacent gob of 73122 working face was conducted respectively by the instantaneous release method and continuous release method, thermocouple temperature measuring probes were used to monitor the coal temperature in the adjacent gob, and the air leakage channel and velocity as well as the change regularity of coal temperature in the adjacent gob were obtained. The results showed that the air was leaked from the gob of 7312 working face to the airreturm way of 73122 working face and the minimum air leakage velocity was 0. 009 55 m/s, the residual coal in the gob was oxidized in the process of the working face reduction and the support withdrawal and the coal temperature continued torise to 35 C, which confimed the detection results of airleakage. By taking the measures such as plugging and gob grouting, the problems of air leakage and coal spontaneous combustion in the gob were effectively solved.
Keywords: gob; air leakage determination; temperature monitoring: coal spontaneous combustion; control measures
煤矿井下巷道、作业场所与老空区之间存在错综复杂的关系，采空区漏风是煤矿安全生产的重大隐患之一]。漏风可引发采空区煤炭自燃、引起有害气体侵人作业场所、造成矿井有效风量不足等重大安全隐患。利用SF。示踪技术，在高能位侧采用瞬时释放法和连续释放法能有效测定漏风位置分布情况和漏风风速[2-3]，应用热电偶温度探头实时监
收稿日期：2015-10-20;2015-11-27修订
作者简介：张建业（1987一），男，硕士，注册安全工程师，主要从事煤矿自燃防治技术研究工作。E-mail：
zhangjianye702@163. com。· 60·
万方数据
测7312-2邻近采空区以及工作面进风巷煤层温度得出邻近采空区煤层温度在工作面工序发生变化和漏风情况下的分布规律[4-6]，以便有针对性地采取堵漏措施，消除漏风或将漏风控制在易自燃风速之外，从而有效防治邻近采空区煤炭自燃。
1工作面邻近采空区漏风测定方案 1.1工作面概况
7312-2工作面煤层厚约5m，采用轻型放顶煤方式开采。工作面东侧紧邻7312老空区，西面与 7314上分层采空区立体斜交，7314老空区顶板跨落岩层比较松散，且7314下分层材料道与7312-2工