同华煤矿+100水平主水仓安装了2台150D30×9型水泵担负矿井的主要排水任务。经过4年多的运行以后,在2002年8月进行巡检时发现1＃水泵的机体振动较大,在水泵机座旁有明显的振动感。初步检查后认为是水泵的地脚螺栓松动所引起的。对地脚螺栓进行紧固处理后,试车发现水泵机体的振动情况没有改观,仍存在较为严重的振动情况。认真对水泵机体的 Tonghua coal mine +100 level main tank installed two 150D30 × 9-type pump to bear the main drainage task of the mine. After more than 4 years of operation, it was found during the inspection in August 2002 that the body of No. 1 water pump was greatly vibrated, and there was obvious vibration feeling beside the water pump seat. After the initial inspection that is the pump caused by the loose anchor bolts. Tightening the anchor bolts, the test found that the vibration of the pump body did not change, there are still more serious vibration. Seriously on the pump body