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[1]刘垒,陈二亮,刘春,等.松软煤层钻进高温闭锁及预警装置研究与应用[J].中国安全生产科学技术,2020,16(3):68-73.[doi:10.11731/j.issn.1673-193x.2020.03.011]
　LIU Lei,CHEN Erliang,LIU Chun,et al.Research and application of hightemperature locking and earlywarning device for drilling in soft coal seam[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2020,16(3):68-73.[doi:10.11731/j.issn.1673-193x.2020.03.011]
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松软煤层钻进高温闭锁及预警装置研究与应用
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
16
期数:
2020年3期
页码:
68-73
栏目:
职业安全卫生管理与技术
出版日期:
2020-03-30

文章信息/Info

Title:
Research and application of hightemperature locking and earlywarning device for drilling in soft coal seam
文章编号:
1673-193X(2020)-03-0068-06
作者:
刘垒; 陈二亮; 刘春; 王永龙; 郭孝星; 李栋
（1.山西潞安矿业（集团）有限责任公司 李村煤矿，山西 长治 046000；
2.山西潞安工程有限公司，山西 长治 046000；
3.中国矿业大学 安全工程学院，江苏 徐州 221000；
4.中国矿业大学物联网（感知矿山）研究中心，江苏 徐州，221006；
5.河南理工大学 能源科学与工程学院，河南 焦作，454000）
Author(s):
LIU Lei;  CHEN Erliang;  LIU Chun;  WANG Yonglong;  GUO Xiaoxing;  LI Dong
(1.Licun Coal Mine,Shanxi Lu’an Mining (Group) Co.,Ltd.,Changzhi Shanxi 046000; 2.Shanxi Lu’an Engineering Co.,Ltd.,Changzhi Shanxi 046000; 3.School of Safety Engineering,China University of Mining and Technology,Xuzhou Jiangsu 221000; 4.IoT Perception M
关键词:
松软煤层; 钻杆; 高温闭锁; 瓦斯燃烧
Keywords:
soft coal seam;  drilling rod;  hightemperature locking;  gas combustion
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2020.03.011
文献标志码:
A
摘要:
针对高瓦斯松软煤层钻孔施工存在孔内瓦斯燃烧的安全隐患问题，提出钻进高温闭锁及压力预警系统，开展钻头与闭锁装置之间的温度传导规律实验、储液密封仓液体介质实验，并进行现场工业性试验。研究结果表明：钻头与储液密封仓之间的温度传输平均差值约为251.52 ℃；储液密封仓选取水为充填介质时，能够保障钻头温度在380~424 ℃范围时蒸汽活塞发生动作；通过现场工业性试验，高温闭锁装置可实现钻头高温下的风水通路闭锁，及时切断氧气来源，避免钻进过程中瓦斯燃烧事故；压力预警装置可将钻进风水通路闭锁转化为声音信号，根据预警时长对钻进过程中的高温、渣堵钻头、瓦斯大等现象进行识别，并及时调整钻进速度及压力，从而降低钻进过程中事故发生的概率。
Abstract:
Aiming at the problem of potential safety hazard about the gas combustion in the borehole during the drilling construction in the high gas and soft coal seams,a hightemperature locking and pressure earlywarning system for the drilling was put forward.The experiments on the temperature conduction laws between the drill bit and the locking device and the experiments on the liquid medium in the sealed liquid storage chamber were conducted,then the onsite industrial tests were carried out.The results showed that the average difference of temperature transmission between the drill bit and the sealed liquid storage chamber was about 251.52 ℃.When water was used as the filling medium in the sealed liquid storage chamber,the steam piston could be guaranteed to operate when the temperature of drill bit was in the range of 380-424 ℃.Through the onsite industrial tests,the hightemperature locking device could block the air and water passages under the high temperature of drill bit,cut off the oxygen source timely,and eliminate the gas combustion accident during the drilling process.The pressure earlywarning device could convert the locking of air and water passages into the acoustical signals,recognize the high temperature,drill bit blockage and high gas concentration and other phenomena during the drilling process according to the earlywarning time,and adjust the drilling speed and feed pressure in time,so as to reduce the probability of drilling accidents.

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备注/Memo

备注/Memo:
收稿日期： 2020-01-13
* 基金项目： 国家自然科学基金项目（41872188）；中国博士后科学基金项目（2017M621876）
作者简介： 刘垒，博士研究生，工程师，主要研究方向为矿井瓦斯防治。
通信作者： 王永龙，博士，副教授，主要研究方向为矿山安全与灾害防治、煤层气（煤矿瓦斯）开发利用。
更新日期/Last Update: 2020-04-01