The origin and effusing pattern of gas at fully mechanized face with caving of roof coal in the inflammable coal seam,spile-drainage methods in mined area were introduced briefly,the experiences can be used for reference for gas drainage in the similar condition.
简要介绍了易燃煤层综放工作面瓦斯来源及涌出规律、采空区插管抽放工艺等,为类似条件下的抽放瓦斯工作提供了借鉴。
Examination method of independent lighting rod in flammable and explosive place;
易燃易爆场所独立避雷针检测方法
For the fire accident in the flammable materials transportation,two-phase-coupled Eulerian-Lagrangian model and particle stochastic model are established,and a numerical simulation of fire accident of leakage of the truck filled with liquefied propane in tunnel is conducted based on the component mixture fraction model.
该文以易燃物质运输中的火灾事故为研究对象,建立相间耦合的Eulerian-Lagrangian模型和颗粒随机轨道模型。
Inflammable liquid(in vapor state)in the vessel or bag was adsorbed on the PA(ester of polypropenoic acid)fibre through syringe needle of the SPME installation for 5-10 min.
将从火场残留物中所取得的样品置于密封的金属罐或塑料袋中,置于烘箱中在80℃加热20～30 min,在固体微萃取装置中用聚丙烯酸酯纤维通过针头将密封容器中的易燃液体(此时已成气态)吸附,吸附时间为5～10 min,然后将易燃液体从纤维上解吸并进样于气相色谱仪器中,按预定的条件进行气相色谱-质谱分析。