338 / 2018-05-21 14:09:34
Model test of the influence of longwall gateroad convergence on the mine ventilation process
longwall ,gateroad, convergence, ventilation, modeling
全文待审
Andrzej Walentek / Central Mining Institute (GIG)
Tomasz Janoszek / Central Mining Institute (GIG)
Stanisław Prusek / Central Mining Institute (GIG)
Aleksander Wrana / Central Mining Institute (GIG)
Hard coal mines are obligated to constantly ventilate mine workings in an amount ensuring the required air composition with a certain humidity and temperature, which will ensure proper comfort for mining crews employed in coal mining, especially deep deposits. All underground workings which are part of the mine ventilation network should be ventilated in a way that allows maintaining a proper oxygen concentration not lower than 19% (by volume), and the maximal allowable concentrations of gases in the air such as methane (CH4), carbon monoxide (CO) or carbon dioxide (CO2), should be kept at a constant level. The air flow in the mine ventilation network may be disturbed due to the natural convergence (deformation) and lead to change in its original cross-section. Reducing the cross-section of longwall gateroad causes local resistances which leads to emergency states in the mine ventilation network.
The article presents the results of numerical simulations of the influence of longwall gateroad convergence on the ventilation process in selected part of the mine ventilation network. The longwall gateroad convergence was modeled with use of the finite element method in the PHASE2 software. The influence of changes of longwall gateroad cross-sectional was carried out using the computational fluid dynamics method (CFD) in the Ansys-Fluent software.
重要日期
  • 会议日期

    10月22日

    2018

    10月24日

    2018

  • 05月31日 2018

    摘要截稿日期

  • 07月05日 2018

    初稿截稿日期

  • 08月10日 2018

    初稿录用通知日期

  • 10月24日 2018

    注册截止日期

主办单位
北京科技大学
McGill University
中国矿业大学(北京)
河南理工大学
University of Wollongong
东北大学
重庆大学
中国矿业大学
Laurentian University
辽宁工程技术大学
西安科技大学
北方工业大学
江西理工大学
黑龙江科技大学
协办单位
中国职业安全健康协会
中国安全生产科学研究院
煤炭信息研究院
中安安全工程研究院
International Journal of Mining Science and Technology
Safety Science
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