Application of ventilation simulation to spontaneous combustion control in underground coal mine:A case study from Bulianta colliery

作     者：Liang Yuntao Zhang Jian Ren Ting Wang Zhongwei Song Shuanglin 

作者机构：Shenyang Branch of China Coal Technology&Engineering Group(CCTEG)Shenyang 110016China College of Safety Science and EngineeringHenan Polytechnic UniversityJiaozuo 454000China School of CivilMining&Environmental EngineeringUniversity of WollongongNSW 2522Australia 

出 版 物：《International Journal of Mining Science and Technology》 (矿业科学技术学报（英文版）)

年 卷 期：2018年第28卷第2期

页      面：231-242页

核心收录：

学科分类：0819[工学-矿业工程] 08[工学] 

基　　金：provided by the University of Wollongong (4390490) Australia and the Shenhua Group Innovative Technology Research Fund (SHGF-13-07) State Key Laboratory Cultivation Base for Gas Geology and Gas Control (Henan Polytechnic University) Open Funding (WS2017A01) 

主　　题：Ventilation simulation Spontaneous combustion Longwall operation Pressure differential Ventsim 

摘      要：Spontaneous combustion of residual coal in longwall goaf is a long standing hazard. Airflow leakage into goaf is a major driver to the hazard and this issue deteriorates where longwalls are operating in multiple seams and shallow covers because mining-induced cracks are very likely to draw fresh airflow into goaf due to presence of pressure differential between longwall face and surface. To study the problem more critically, a ventilation simulation package ‘‘Ventsim is used to conduct a case study from Bulianta colliery. It was found that isolating and pressurizing active longwall panel can mitigate the problem and the pressure differential can be adjusted by varying performance of auxiliary fan and resistance of ventilation regulator. A booster ventilation system can also mitigate the problem by adjusting fan duties. Ventilation simulation is a powerful tool to study spontaneous combustion control in underground coal mine.