1 灌泵存在的问题 将液体从低位储存池向高位输送是煤矿及选煤厂生产工艺中常见的操作方法。在吸入式离心泵的操作中,灌泵是启动泵前必不可必的步骤。我厂受煤坑在-10m左右,涌水量大,其污水排放设计采用吸入式离心泵来实现,在实际使用过程中,由于离心泵吸水管底阀锈蚀及污物堵塞,止回阀失灵,经常出现灌泵不成功,泵不上料,浪费了大量的人力、物力,严重影 1 pump problems The liquid from the low storage tank to the high transport is coal and coal preparation plant production process is common practice. In the operation of a suction centrifugal pump, the filling pump is an indispensable step before starting the pump. I plant by the coal pit in the -10m or so, a large amount of water inflow, the design of its sewage discharge suction centrifugal pump to achieve in the actual use of the process, due to centrifugal pump suction pipe at the end of valve corrosion and dirt plug, check valve failure, Irrigation pump often fails, the pump is not expected to waste a lot of manpower, material resources, severe shadow