瓦斯与火复合灾害工作面合理通风方式研究

发布时间：2018-02-27 16:24

本文关键词： 复合灾害遗煤自燃通风方式通风量数值模拟采空区氧化带　出处：《煤矿安全》2017年04期 　论文类型：期刊论文

【摘要】：为了确定南山矿瓦斯和煤自燃复合灾害工作面合理通风方式和通风量,以33183综放工作面为研究对象,采用Fluent软件从瓦斯和氧浓度分布、温度场分布角度综合分析其合理通风方式和通风量。模拟结果表明:"U+L"型和"Y"型通风方式虽能解决瓦斯问题,但从氧化带宽度、高温区特点可知不利防火;"U"型通风方式有利于防火,需配合瓦斯抽采技术解决瓦斯超限问题,故33183工作面合理通风方式确定为"U"型,既能满足瓦斯抽采要求,又能控制遗煤自燃问题。
[Abstract]:In order to determine the reasonable ventilation mode and ventilation quantity of the combined disaster face of gas and coal spontaneous combustion in Nanshan Coal Mine, taking 33183 fully mechanized caving face as the research object, the distribution of gas and oxygen concentration from the distribution of gas and oxygen concentration is adopted with Fluent software. The reasonable ventilation mode and ventilation volume are analyzed synthetically from the distribution angle of temperature field. The simulation results show that the "U L" and "Y" ventilation modes can solve the gas problem, but from the width of oxidation zone, The characteristics of high temperature area know that it is unfavorable to prevent fire, "U" type ventilation mode is beneficial to fire prevention, so the reasonable ventilation mode of 33183 face is determined as "U" type, which can not only meet the requirement of gas drainage, but also need to be combined with gas extraction technology to solve the problem of gas exceeding limit. Can also control the problem of coal spontaneous combustion.
【作者单位】：新疆工程学院安全工程系;辽宁工程技术大学安全科学与工程学院;大同煤矿集团有限责任公司;辽宁工程技术大学矿业学院;
【基金】：新疆自治区高层次人才培养计划资助项目国家自然科学基金资助项目(51404127) 新疆工程学院横向资助项目(2014xgyh041612)
【分类号】：TD724

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