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许多产煤国家的采深已超过1000米,岩温已超过500℃;产量也因采掘机械化程度的提高而大幅度增长。当岩温和产量都较高时会使矿井气温升高。矿井气温升高,不仅影响井下作业人员的健康,而且使事故率增加和作业效率降低,甚至被迫停产,放弃贵重的资源。因此,研究矿井热源及热害防治措施,改善矿井气象,已成为煤矿深部开采的重大课题。
In many coal-producing countries, the mining depth has exceeded 1,000 meters and the rock temperature has exceeded 500 ° C. The output has also risen sharply due to the increase of mining mechanization. When the temperature of rock is higher, the mine temperature will increase. Mine temperatures, not only affect the health of underground workers, but also to increase the accident rate and reduce operating efficiency, and even forced to stop production, to give up valuable resources. Therefore, to study mine heat sources and heat control measures to improve mine weather has become a major issue in the deep mining of coal mines.