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在毛主席革命路线的指引下,为了保证煤炭工业多、快、好、省地向前发展,1970年中梁山煤矿同重庆煤炭科学研究所开展了完善煤层注水方法的试验工作。煤层注水在煤矿安全生产工作中越来越广泛地被采用。实践证明,这是降低井下空气中煤尘含量的有效措施,并且正逐步地用来解决预防煤与瓦斯突出,预防煤的自燃发火等煤矿安全问题。 实现煤层注水的关键之一是封孔。只有封严钻孔,才能实现注水。目前,一般是用水泥封孔或手摇封孔器封孔。前者容易实现,但是每次所消耗的水泥较多,钢管无法回收,
Under the guidance of Chairman Mao’s revolutionary line, in order to ensure the development of a large number of industries in the coal industry, fast, well and provinceally, in 1970, Zhongliangshan Coal Mine and Chongqing Institute of Coal Research conducted a trial to improve the method of water injection into coal seams. Coal seam water injection is increasingly used in coal mine safety work. Practice has proved that this is an effective measure to reduce the dust content in underground air and is gradually being used to solve coal mine safety problems such as preventing coal and gas outburst and preventing spontaneous combustion of coal. One of the keys to achieving coal seam water injection is sealing. Only sealed rigorous drilling, in order to achieve water injection. At present, it is generally used to seal holes with a cement seal or a hand-made seal. The former is easy to implement, but each consumed more cement, steel pipe can not be recycled,