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中文摘要：
防爆开关是煤矿最常用的机电设备,而矿井火灾又是煤矿生产中的主要灾害,兼有火灾探测功能煤矿防爆开关就体现出了实用的价值。本防爆开关利用多波段红外辐射对煤炭的自燃进行极早期探测,将火灾报警时间提前到煤炭自燃的潜伏期,为相关人员提供足够的反应时间,在起到防爆开关作用的同时,达到预防火灾的目的。
英文摘要：
The explosion-proof switch of coal mine is the most commonly used mechanical and electrical equipment, and the coal mine fire is a major disaster in coal mine production. Therefore, the explosion-proof switch of coal mine with fire detection function represented the utility value. Multi- band infrared radiation was utilized by the explosion-proof switch to do the early coal spontaneous combustion detection, and advance the fire alarm time to the early incubation period of coal spontaneous combustion for providing adequate reaction time for the relevant personnel. Thus, the explosion-proof switch can not only play a role of explosion-proof but also achieve the purpose of the fire prevention.
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Relationships between gas reservoir and the evolution of stope surrounding rock fracture at the proc
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