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中煤科工集团西安研究院有限公司研发生产的ZDY4000LR型松软煤层套管钻机在淮南潘一煤矿圆满完成试验任务,共施工钻孔249个,总进尺35 159 m,其中最大孔深262 m,平均效率150 m/班次,最高效率290 m/班次,成孔率达80%,整机效率较同矿区其他钻机总体高出近20%。该钻机安全可靠的结构设计、方便快捷的操作方式、高效低劳动强度的作业流程,得到淮南潘一煤矿的认可。该试验工作面煤层普
ZDY4000LR soft coal seam casing drilling rig researched and developed by China Academy of Science and Technology Xi’an Research Institute Co., Ltd. successfully completed the testing task in Panyi Coal Mine in Huainan. A total of 249 drilling holes were drilled with a total footage of 35 159 m, of which the maximum hole depth was 262 m, The average efficiency of 150 m / shift, the maximum efficiency of 290 m / shift, hole formation rate of 80%, the machine efficiency than the other mine with the overall mining area nearly 20% higher. The drilling rig safe and reliable structure design, convenient and efficient mode of operation, high efficiency and low labor intensity of the operation process, access to Huainan Panzhihua Mine approval. The test face coal seam