近日,三一重装自主研制的CMSL-3000R型煤矿用整体式深孔定向钻机下线,标志着三一重装瓦斯抽采钻机技术达到国际先进水平,一举打破国外同类产品在我国的长期垄断格局。据了解,我国95%的煤矿属地下开采,煤层赋存条件复杂多变。为预防煤矿瓦斯安全事故,做到瓦斯有效抽采与利用,2009年国家制定了煤矿瓦斯“先抽后采,不抽不采,治理与利用相结合” Recently, Sany Heavy Equipment independently developed CMSL-3000R coal mine with integrated deep hole directional drilling machine off the assembly line, marking the 31 reloading gas drainage drilling rig technology has reached the international advanced level, in one fell swoop to break the long-term foreign monopoly of similar products in our country pattern. It is understood that 95% of China’s coal mines are underground mining, complex conditions of occurrence of coal seams. In order to prevent gas accidents in coal mines and achieve effective gas drainage and utilization, in 2009, the country formulated the coal mine gas drainage technology,