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2009年,板石矿业公司对选矿厂尾矿系统进行了生产设备扩能改造,在五砂泵站安装了4台250ZJ-75型渣浆泵,设备运行期间,按设备维护保养要求定期更换轴承箱内润滑油,同时清洗油池内杂质,但仍多次出现渣浆泵轴承抱死故障,每年轴承损坏2～3套,严重影响选矿厂的正常生产。1原轴承润滑系统存在的问题250ZJ-75型渣浆泵轴承采用开式托架稀油润滑形式,润滑油依靠油室内置循环水冷装置进行冷却,
In 2009, the company expanded the capacity of its ore dressing plant tailings system and installed four 250ZJ-75 slurry pumps at Wusha pumping station. During the operation of the equipment, the bearings were regularly replaced according to the equipment maintenance requirements Tank oil, while cleaning the oil pool of impurities, but there are still many times the slurry pump bearing locking failure, annual bearing damage 2 to 3 sets, seriously affecting the normal production of the concentrator. 1 original bearing lubrication system problems 250ZJ-75 type slurry pump bearing open bracket thin oil lubrication form, the oil relies on oil chamber built-in circulating water cooling device for cooling,