【作者】 孙建华；

【导师】 赵景礼；

【作者基本信息】 中国矿业大学（北京） ， 采矿工程， 2011， 博士

【摘要】 随着煤矿开采深度的增加和产量增加,瓦斯压力和涌出量越来越高,瓦斯爆炸事故发生几率急剧增加,严重制约着煤矿的安全生产,开展瓦斯爆炸阻隔爆材料及阻隔爆装置的研究已经迫在眉睫。本文通过对国内外瓦斯爆炸传播机理研究后,提出以多孔材料为主体阻隔爆材料,通过理论分析进行选择,利用自行设计的实验系统对多孔材料的阻隔爆性能及机理进行研究,实验表明,金属丝网和泡沫陶瓷材料都有一定的阻火能力,金属丝网抗爆炸冲击波损毁性能良好,泡沫陶瓷抗烧结性能良好。金属丝网和泡沫陶瓷都对爆炸超压有一定的衰减效果,但泡沫陶瓷优于金属丝网。合理组合金属丝网与泡沫陶瓷参数,可以达到取长补短,发挥单体材料优势,达到减少组合体损坏程度,增强抑爆效果的目的。同时建立了针对泡沫陶瓷材料选择的评价体系,为煤矿井下自动阻隔爆风门制造材料的选择提供科学依据。更多还原

【Abstract】 With the increasing of the depth and production of coal mining, emission and pressure of gas are increasing, risk of gas explosion accidents increased dramatically, seriously restricting the coal mine production safety. To carry out barrier gas explosion materials and devices is imminent. Based on the mechanism of gas explosion at home and abroad,treat porous materials as the main barrier explosive materials,to be selected by theoretical analysis. Reaching the barrier properties of porous materials and the mechanism of explosion by own designed experimental system. Experiments show that wire mesh and ceramic foam all have fire blocking ability,wire mesh has good performance against blast damage and ceramic foam has good resistance to sintering.They all have a certain attenuation on explosion overpressure,while ceramic foam is better. Rational combination of wire mesh and ceramic foam can learn from each other to play a single material advantages and to reduce the extent of damage of combination and strengthen explosion suppression. Establishing evaluation model for ceramic foam material selection is treated as scientific basis for selection of material of automatic throttle burst blocking in the coal mine.更多还原