就硫酸生产酸洗净化系统中使用的斜管沉降器，对其结构设计中存在的问题进行了改造，其中包括结构和衬里防腐的改进。

Against the design defects, modification is made on inclined tube settler in the purifying system of SA production, including settler structure and lining anticorrosion.

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一种滤心自动清洗净水器，主要由外壳、过滤心、旋转器和滚刷筒等构成；

The utility model relates to a water purifier with automatically cleaning filter element, which is mainly composed of a casing, a filtering element, a rotation device, a rolling brush cylinder, etc.

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