留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

煤与瓦斯突出煤粉在巷道内运移分布规律试验研究

张超林 王奕博 王恩元 曾伟 王培仲

张超林,王奕博,王恩元,等. 煤与瓦斯突出煤粉在巷道内运移分布规律试验研究[J]. 煤田地质与勘探,2022,50(6):11−19. doi: 10.12363/issn.1001-1986.22.01.0052
引用本文: 张超林,王奕博,王恩元,等. 煤与瓦斯突出煤粉在巷道内运移分布规律试验研究[J]. 煤田地质与勘探,2022,50(6):11−19. doi: 10.12363/issn.1001-1986.22.01.0052
ZHANG Chaolin,WANG Yibo,WANG Enyuan,et al. Experimental study on the migration and distribution law of pulverized coal in roadway during coal and gas outburst[J]. Coal Geology & Exploration,2022,50(6):11−19. doi: 10.12363/issn.1001-1986.22.01.0052
Citation: ZHANG Chaolin,WANG Yibo,WANG Enyuan,et al. Experimental study on the migration and distribution law of pulverized coal in roadway during coal and gas outburst[J]. Coal Geology & Exploration,2022,50(6):11−19. doi: 10.12363/issn.1001-1986.22.01.0052

煤与瓦斯突出煤粉在巷道内运移分布规律试验研究

doi: 10.12363/issn.1001-1986.22.01.0052
基金项目: 国家自然科学基金项目(51904293,51934007);江苏省自然科学基金项目(BK20190627)
详细信息
    第一作者:

    张超林,1991年生,男,安徽阜阳人,博士,副教授,硕士生导师,从事煤岩动力灾害制灾机理及其防控方面的教学与研究工作.E-mail:chaolinzhang@cumt.edu.cn

  • 中图分类号: TD713

Experimental study on the migration and distribution law of pulverized coal in roadway during coal and gas outburst

  • 摘要: 煤与瓦斯突出是严重威胁煤矿安全生产的地质灾害之一,主要表现为瓦斯窒息和煤粉冲击、掩埋。利用自主研制的多功能煤与瓦斯突出模拟试验系统,开展不同瓦斯压力条件下煤与瓦斯突出模拟试验。结果表明,突出启动后,瓦斯气体携带煤粉以射流状喷向巷道。在0.35 MPa低瓦斯压力条件下,瓦斯膨胀能低,突出煤粉初始加速度小,受重力和阻力影响显著,运移形态以沙丘流和分层流为主,并出现多次“加速−减速”过程,最大速度为34.2 m/s;而在2.00 MPa高瓦斯压力条件下,瓦斯膨胀能高,突出煤粉初始加速度大,能有效克服重力和阻力,运移形态以栓流为主,运移速度降低不明显,最大为71.2 m/s。同时,当瓦斯压力从0.35 MPa增加至0.85 MPa和2.00 MPa时,相对突出强度由36.13%增大至52.39%和63.70%,且煤层瓦斯压力越高,突出煤粉运移距离越远,巷道末端集尘袋内煤粉质量占比越高,分别为65.21%、75.05%和87.17%。此外,突出结束后,突出煤粉粉碎率随瓦斯压力增加依次增大,分别为8.1%、21.5%和28.0%,但是粉碎到临界粒径0.075 mm以下的煤粉较少。最后,计算得到不同瓦斯压力条件下突出煤粉破碎指数分别为0.19、0.44和0.56,与相对突出强度具有较好的线性拟合关系。研究结果对揭示突出致灾机制、制定防灾减灾措施具有一定指导意义。

     

  • 图  多功能煤与瓦斯突出模拟试验系统

    Fig. 1  Multi-functional test system for coal and gas outburst simulation

    图  0.35 MPa条件下突出煤粉在巷道内运移过程

    Fig. 2  Migration process of outburst pulverized coal in roadway under the gas pressure of 0.35 MPa

    图  0.35 MPa条件下突出煤粉巷道内运移形态

    Fig. 3  Migration pattern of outburst pulverized coal in roadway under the gas pressure of 0.35 MPa

    图  0.85 MPa条件下突出煤粉巷道内运移形态

    Fig. 4  Migration pattern of outburst pulverized coal in roadway under the gas pressure of 0.85 MPa

    图  0.35 MPa条件下煤粉在巷道内运移视频截图

    Fig. 5  Video screenshots of pulverized coal migration in roadway under the gas pressure of 0.35 MPa

    图  不同瓦斯压力条件下煤粉在巷道内运移速度对比

    Fig. 6  Comparison of pulverized coal migration velocity in roadway under different gas pressures

    图  不同瓦斯压力条件下突出煤粉质量分布特征

    Fig. 7  Mass distribution characteristics of outburst pulverized coal under different gas pressures

    图  不同瓦斯压力条件下突出煤粉粒径分布特征

    Fig. 8  Particle size distribution characteristics of outburst pulverized coal under different gas pressures

    图  相对突出强度与破碎指数拟合结果

    Fig. 9  Fitting results of RIO and fragmentation index η

  • [1] 国家统计局. 中华人民共和国2021年国民经济和社会发展统计公报[EB/OL]. http://www.stats.gov.cn/xxgk/sjfb/zxfb2020/ 202202/t20220228_1827971.html. [2022-02-28].
    [2] 煤矿安全网. 2021年煤矿事故详细名单[EB/OL]. http://www.mkaq.org/html/2022/01/15/606203.shtml. [2022-01-15].
    [3] 张超林,许江,彭守建,等. 煤与瓦斯突出物理模拟实验研究进展及展望[J]. 煤田地质与勘探,2018,46(4):28−34. ZHANG Chaolin,XU Jiang,PENG Shoujian,et al. Advances and prospects in physical simulation of coal and gas outburst[J]. Coal Geology & Exploration,2018,46(4):28−34.. doi: 10.3969/j.issn.1001-1986.2018.04.005

    ZHANG Chaolin, XU Jiang, PENG Shoujian, et al. Advances and prospects in physical simulation of coal and gas outburst[J]. Coal Geology & Exploration, 2018, 46(4): 28-34.. doi: 10.3969/j.issn.1001-1986.2018.04.005
    [4] 李希建,薛海腾,陈刘瑜,等. 煤与瓦斯突出冲击波穿越门墙孔洞能量耗散规律及安全尺寸[J]. 煤炭学报,2021,46(12):3934−3947. LI Xijian,XUE Haiteng,CHEN Liuyu,et al. Energy dissipation laws and hole safety dimensions of coal and gas outburst shock wave passing through door wall[J]. Journal of China Coal Society,2021,46(12):3934−3947.

    LI Xijian, XUE Haiteng, CHEN Liuyu, et al. Energy dissipation laws and hole safety dimensions of coal and gas outburst shock wave passing through door wall[J]. Journal of China Coal Society, 2021, 46(12): 3934-3947.
    [5] 唐巨鹏,郝娜,潘一山,等. 基于声发射能量分析的煤与瓦斯突出前兆特征试验研究[J]. 岩石力学与工程学报,2021,40(1):31−42. TANG Jupeng,HAO Na,PAN Yishan,et al. Experimental study on precursor characteristics of coal and gas outbursts based on acoustic emission energy analysis[J]. Chinese Journal of Rock Mechanics and Engineering,2021,40(1):31−42.

    TANG Jupeng, HAO Na, PAN Yishan, et al. Experimental study on precursor characteristics of coal and gas outbursts based on acoustic emission energy analysis[J]. Chinese Journal of Rock Mechanics and Engineering, 2021, 40(1): 31-42.
    [6] 张超林,王恩元,王奕博,等. 近20年我国煤与瓦斯突出事故时空分布及防控建议[J]. 煤田地质与勘探,2021,49(4):134−141. ZHANG Chaolin,WANG Enyuan,WANG Yibo,et al. Spatial-temporal distribution of outburst accidents from 2001 to 2020 in China and suggestions for prevention and control[J]. Coal Geology & Exploration,2021,49(4):134−141.. doi: 10.3969/j.issn.1001-1986.2021.04.016

    ZHANG Chaolin, WANG Enyuan, WANG Yibo, et al. Spatial-temporal distribution of outburst accidents from 2001 to 2020 in China and suggestions for prevention and control[J]. Coal Geology & Exploration, 2021, 49(4): 134-141.. doi: 10.3969/j.issn.1001-1986.2021.04.016
    [7] 秦恒洁,魏建平,李栋浩,等. 煤与瓦斯突出过程中地应力作用机理研究[J]. 中国矿业大学学报,2021,50(5):933−942. QIN Hengjie,WEI Jianping,LI Donghao,et al. Research on the mechanism of in-situ stress in the process of coal and gas outburst[J]. Journal of China University of Mining & Technology,2021,50(5):933−942.

    QIN Hengjie, WEI Jianping, LI Donghao, et al. Research on the mechanism of in-situ stress in the process of coal and gas outburst[J]. Journal of China University of Mining & Technology, 2021, 50(5): 933-942.
    [8] 王恩元,张国锐,张超林,等. 我国煤与瓦斯突出防治理论技术研究进展与展望[J]. 煤炭学报,2022,47(1):297−322. WANG Enyuan,ZHANG Guorui,ZHANG Chaolin,et al. Research progress and prospect on theory and technology for coal and gas outburst control and protection in China[J]. Journal of China Coal Society,2022,47(1):297−322.

    WANG Enyuan, ZHANG Guorui, ZHANG Chaolin, et al. Research progress and prospect on theory and technology for coal and gas outburst control and protection in China[J]. Journal of China Coal Society, 2022, 47(1): 297-322.
    [9] 王维忠,陶云奇,许江,等. 不同瓦斯压力条件下的煤与瓦斯突出模拟实验[J]. 重庆大学学报:自然科学版,2010,33(3):82−86. WANG Weizhong,TAO Yunqi,XU Jiang,et al. Simulation of coal and gas outburst with different gas pressure[J]. Journal of Chongqing University:Natural Science Edition,2010,33(3):82−86.

    WANG Weizhong, TAO Yunqi, XU Jiang, et al. Simulation of coal and gas outburst with different gas pressure[J]. Journal of Chongqing University: Natural Science Edition, 2010, 33(3): 82-86.
    [10] 许江,刘东,彭守建,等. 不同突出口径条件下煤与瓦斯突出模拟试验研究[J]. 煤炭学报,2013,38(1):9−14. XU Jiang,LIU Dong,PENG Shoujian,et al. Coal and gas outburst analogous test under the different diameter of exposed coal seam surface[J]. Journal of China Coal Society,2013,38(1):9−14.

    XU Jiang, LIU Dong, PENG Shoujian, et al. Coal and gas outburst analogous test under the different diameter of exposed coal seam surface[J]. Journal of China Coal Society, 2013, 38(1): 9-14.
    [11] 邢跃强,程远平,涂庆毅,等. 突出煤体空间分布及粒径分布特性试验分析[J]. 西安科技大学学报,2018,38(3):411−416. XING Yueqiang,CHENG Yuanping,TU Qingyi,et al. Experimental study on the spatial distribution characteristics of outburst coal[J]. Journal of Xi’an University of Science and Technology,2018,38(3):411−416.

    XING Yueqiang, CHENG Yuanping, TU Qingyi, et al. Experimental study on the spatial distribution characteristics of outburst coal[J]. Journal of Xi’an University of Science and Technology, 2018, 38(3): 411-416.
    [12] 唐巨鹏,丁佳会,于宁,等. 有效应力对石门揭煤突出影响分析和试验研究[J]. 岩石力学与工程学报,2018,37(2):282−290. TANG Jupeng,DING Jiahui,YU Ning,et al. Analysis and experimental study on the effect of effective stress on coal and gas outburst in crosscutting[J]. Chinese Journal of Rock Mechanics and Engineering,2018,37(2):282−290.

    TANG Jupeng, DING Jiahui, YU Ning, et al. Analysis and experimental study on the effect of effective stress on coal and gas outburst in crosscutting[J]. Chinese Journal of Rock Mechanics and Engineering, 2018, 37(2): 282-290.
    [13] 张超林,许江,王恩元,等. 突出煤体破碎抛出及粒度分布规律试验研究[J]. 中国矿业大学学报,2021,50(4):784−792. ZHANG Chaolin,XU Jiang,WANG Enyuan,et al. Experimental study on breaking characteristics and particle size distribution of ejected coal after outburst[J]. Journal of China University of Mining & Technology,2021,50(4):784−792.

    ZHANG Chaolin, XU Jiang, WANG Enyuan, et al. Experimental study on breaking characteristics and particle size distribution of ejected coal after outburst[J]. Journal of China University of Mining & Technology, 2021, 50(4): 784-792.
    [14] 孙东玲,曹偈,苗法田,等. 突出煤−瓦斯在巷道内的运移规律[J]. 煤炭学报,2018,43(10):2773−2779. SUN Dongling,CAO Jie,MIAO Fatian,et al. Migration law of outburst coal and gas in roadway[J]. Journal of China Coal Society,2018,43(10):2773−2779.

    SUN Dongling, CAO Jie, MIAO Fatian, et al. Migration law of outburst coal and gas in roadway[J]. Journal of China Coal Society, 2018, 43(10): 2773-2779.
    [15] 刘义,石必明,张煜,等. 煤与瓦斯突出两相流传播特性实验研究[J]. 中国安全生产科学技术,2021,17(7):91−96. LIU Yi,SHI Biming,ZHANG Yu,et al. Experimental study on propagation characteristics of two-phase flow in coal and gas outburst[J]. Journal of Safety Science and Technology,2021,17(7):91−96.

    LIU Yi, SHI Biming, ZHANG Yu, et al. Experimental study on propagation characteristics of two-phase flow in coal and gas outburst[J]. Journal of Safety Science and Technology, 2021, 17(7): 91-96.
    [16] 许江,魏仁忠,程亮,等. 煤与瓦斯突出流体多物理参数动态响应试验研究[J]. 煤炭科学技术,2022,50(1):159−168. XU Jiang,WEI Renzhong,CHENG Liang,et al. Dynamic response of multiple physical parameters of outburst flow in a closed roadway[J]. Coal Science and Technology,2022,50(1):159−168.

    XU Jiang, WEI Renzhong, CHENG Liang, et al. Dynamic response of multiple physical parameters of outburst flow in a closed roadway[J]. Coal Science and Technology, 2022, 50(1): 159-168.
    [17] 王亮. 突出煤粉—瓦斯固气两相流动力学演化规律研究[D]. 北京: 中国矿业大学(北京), 2020.

    WANG Liang. Dynamic evolution law of solid-gas two-phase flow in coal and gas outbursts[D]. Beijing: China University of Mining and Technology (Beijing), 2020.
    [18] 金侃. 煤与瓦斯突出过程中高压粉煤—瓦斯两相流形成机制及致灾特征研究[D]. 徐州: 中国矿业大学, 2017.

    JIN Kan. Research on formation mechanism of high pressure pulverized coal-gas two phase flow during outburst and its disaster characteristic[D]. Xuzhou: China University of Mining and Technology, 2017.
    [19] 张超林,王恩元,王奕博,等. 多功能煤与瓦斯突出模拟试验系统研制与应用[J]. 岩石力学与工程学报,2022,41(5):995−1007. ZHANG Chaolin,WANG Enyuan,WANG Yibo,et al. Development and application of multi-functional test system for coal and gas outburst simulation[J]. Chinese Journal of Rock Mechanics and Engineering,2022,41(5):995−1007.

    ZHANG Chaolin, WANG Enyuan, WANG Yibo, et al. Development and application of multi-functional test system for coal and gas outburst simulation[J]. Chinese Journal of Rock Mechanics and Engineering, 2022, 41(5), 994-1006.
    [20] 邵强,王恩营,王红卫,等. 构造煤分布规律对煤与瓦斯突出的控制[J]. 煤炭学报,2010,35(2):250−254. SHAO Qiang,WANG Enying,WANG Hongwei,et al. Control to coal and gas outburst of tectonic coal distribution[J]. Journal of China Coal Society,2010,35(2):250−254.

    SHAO Qiang, WANG Enying, WANG Hongwe, et al. Control to coal and gas outburst of tectonic coal distribution[J]. Journal of China Coal Society, 2010, 35(2): 250-254.
    [21] 程远平,雷杨. 构造煤和煤与瓦斯突出关系的研究[J]. 煤炭学报,2021,46(1):180−198. CHENG Yuanping,LEI Yang. Causality between tectonic coal and coal and gas outbursts[J]. Journal of China Coal Society,2021,46(1):180−198.

    CHENG Yuanping, LEI Yang. Causality between tectonic coal and coal and gas outbursts[J]. Journal of China Coal Society, 2021, 46(1): 180-198.
    [22] 王凯,王亮,杜锋,等. 煤粉粒径对突出瓦斯—煤粉动力特征的影响[J]. 煤炭学报,2019,44(5):1369−1377. WANG Kai,WANG Liang,DU Feng,et al. Influence of coal powder particle sizes on dynamic characteristics of coal and gas outburst[J]. Journal of China Coal Society,2019,44(5):1369−1377.

    WANG Kai, WANG Liang, DU Feng, et al. Influence of coal powder particle sizes on dynamic characteristics of coal and gas outburst[J]. Journal of China Coal Society, 2019, 44(5): 1369-1377.
    [23] 胡千庭,周世宁,周心权. 煤与瓦斯突出过程的力学作用机理[J]. 煤炭学报,2008,33(12):1368−1372. HU Qianting,ZHOU Shining,ZHOU Xinquan,et al. Mechanism of coal and gas outburst process[J]. Journal of China Coal Society,2008,33(12):1368−1372.. doi: 10.3321/j.issn:0253-9993.2008.12.008

    HU Qianting, ZHOU Shining, ZHOU Xinquan, et al. Mechanism of coal and gas outburst process[J]. Journal of China Coal Society, 2008, 33(12): 1368-1372.. doi: 10.3321/j.issn:0253-9993.2008.12.008
    [24] 罗甲渊. 煤与瓦斯突出的能量源及能量耗散机理研究[D]. 重庆: 重庆大学, 2016.

    LUO Jiayuan. Study on energy source and energy dissipation mechanism of coal and gas outburst[D]. Chongqing: Chongqing University, 2016.
    [25] 涂庆毅. 构造煤表观物理结构及煤与瓦斯突出层裂发展机制研究[D]. 徐州: 中国矿业大学, 2019.

    TU Qingyi. Study on apparent physical structure of tectonic coal and spallation development mechanism of coal and gas outburst[D]. Xuzhou: China University of Mining and Technology, 2019.
    [26] ZHANG Chaolin,WANG Enyuan,XU Jiang,et al. A new method for coal and gas outburst prediction and prevention based on the fragmentation of ejected coal[J]. Fuel,2021,287:119493.. doi: 10.1016/j.fuel.2020.119493
  • 加载中
图(9)
计量
  • 文章访问数:  299
  • HTML全文浏览量:  18
  • PDF下载量:  46
  • 被引次数: 0
出版历程
  • 收稿日期:  2022-01-24
  • 修回日期:  2022-02-25
  • 发布日期:  2022-06-25
  • 网络出版日期:  2022-05-07

目录

    /

    返回文章
    返回