论文部分内容阅读
一、前言瓦斯断电仪是一种较先进的瓦斯监测仪表。它既能连续不断地监测矿井瓦斯,又能在沼气浓度超限时报警断电,达到安全生产的目的。但王石凹煤矿自从1981年使用瓦斯断电仪以来(包括 Ak201.ABD-1型等),均不能正常工作(表)。该矿开采煤层为石炭二迭纪煤层。低沼气矿井。1986年沼气相对涌出量为5.72米~3/日·吨,二氧化碳相对涌出量为10.94米~3/日·吨。5~#层、10~#层有爆炸危险,其爆炸指数分别为22.1%、17.6%。石灰岩不含水开拓巷道布置在石灰岩中,准备巷道为穿层巷道。二、瓦斯断电仪工作原理瓦斯断电仪表的关键在探头,(以淮南
I. Introduction Gas power meter is a more advanced gas monitoring instrument. It can not only continuously monitor the mine gas, but also in the biogas concentration limit alarm power, to achieve the purpose of production safety. However, Wang Shiqia Coal Mine since 1981, the use of gas power meter (including Ak201.ABD-1 type, etc.), are not working (table). The coal seam mining for the Permian Permian coal seam. Low biogas mine. The relative emission of biogas in 1986 was 5.72 m 3 / day · ton, and the relative emission of carbon dioxide was 10.94 m 3 / day · ton. 5 ~ # layer, 10 ~ # layer have an explosion risk, the explosion index were 22.1%, 17.6%. Limestone non-water to open up the roadway arranged in the limestone, ready for the tunnel through the tunnel. Second, gas power meter working principle Gas power meter key in the probe, (to Huainan