铜陵磷铵厂从奥地引进的磷酸液下泵已使用多年，效果良好，现介绍如下。由于该泵泵轴较长，泵轴由上部滚动轴承和下部滑动轴承支承，下部滑动轴承位于磷酸槽内浸泡在介质中，滑动轴承和叶轮用水冲洗润滑。在使用中，液下泵主要故障部位在下部滑动轴承和叶轮处，而上部滚动轴承 Tongling ammonium phosphate plant from the introduction of Austria’s phosphoric acid liquid pump has been used for many years, the effect is good, are presented below. As the pump shaft is longer, the pump shaft is supported by the upper rolling bearing and the lower sliding bearing, the lower sliding bearing is immersed in the medium in the phosphoric acid tank, and the sliding bearing and the impeller are rinsed and lubricated. In use, submerged pump main fault parts in the lower part of the sliding bearing and impeller, while the upper part of the rolling bearing