江苏省苏南煤矿机械厂生产的LM—120型反井钻机,1990年被能源部、江苏省先后评为优质产品,今年10月份又通过了国家优质产品评审,获国家优质产品金质奖。 LM—120型反井钻机是井下煤仓、通风孔、井筒延伸等施工的一种高效钻井设备。该钻机可钻导孔244mm,扩孔直径1.2m,钻井深度120m。目前已有数十个矿务局、煤矿购买或装用了该钻机,累计钻井深度近3万米、最深井孔达256m,取得了十分明显的经济效益和社会效益,苏南煤机厂以优良的产品质量和完善的售后技术服务赢得了用户的一致好评。 Jiangsu Province, Jiangsu Province, South China Coal Mine Machinery Factory production LM-120-type drilling rig, 1990 by the Department of Energy, Jiangsu Province has successively been rated as quality products, in October this year passed the national quality product review, the national quality gold medal. LM-120 anti-rig drilling rig is downhole coal bunker, ventilation holes, such as the extension of the wellbore construction of an efficient drilling equipment. The driller can drill 244mm, reaming diameter of 1.2m, drilling depth of 120m. At present, dozens of mining bureaus and coal mines have purchased or installed the drilling rig, accumulating a total of nearly 30,000 meters of drilling depth and 256 meters of the deepest well hole, and achieved remarkable economic and social benefits. The product quality and perfect after-sale technical service has won the praise of users.