矿山应急救援中井下通风与瓦斯事故处理研究

应急救援是矿山灾难事故中的重要环节,其中矿井通风和瓦斯事故处理是关键部分。首先,分析了矿山正常生产和应急救援状态下的通风原理与要求以及巷道风量、风速、风压等重要参数对应急救援的影响。其次,对已经发生的瓦斯事故进行案例分析,并依据案例分析了瓦斯事故中采取的不同应对措施。最后,探讨了井下环境改善与瓦斯防控技术的应用对矿井事故救援的具体影响。研究发现,合理利用矿井通风系统并灵活应用瓦斯排放与控制技术,可有效降低矿井应急救援中的危险性。

基于采空区自然发火防控技术合理参数的模拟研究

本文针对同煤集团煤峪口矿14号层81004工作面采空区具体情况运用fluent软件相关模拟计算、分析,分析近距采空区及工作面气体运移规律确定采空区的合理配风量、经济有效的注氮量得到采空区自然发火防控技术的合理工艺参数,有效解决了工作面配风与采空区自然发火的矛盾关系,对煤矿安全生产具有重要现实意义。

Study on comprehensive gas control techniques and practice in coal mines

The origins and main control methods of gas in coal seams were introduced cursorily, and the processes that need to be done in controlling gas, which includes prediction of gas emissions, drainage systems, the means of prevention of gas outbursts, and some suggestions were put forward. The characteristic of different gas emissions and the corresponding counter measures were presented, and ＆ case study of simultaneous extraction of coal and gas in Xieyi Coal Mine was carried out by coal mining and gas extraction without coal-pillar. The field application shows that gas drainage ratio in panel 5121（0） averages about 90% and reaches as high as 95~/0, which will give beneficial references to gas control in coal mines.