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我厂选矿生产中使用近百台8PSJ衬胶砂泵。从1965年投产以来,由于泵所输送的矿浆粒度粒、压力高,泵后壳填料函处磨损很快。原直径φ151毫米处搪孔仅6个月就被矿浆及高压水冲刷成椭圆形,使水套不能固定。高压水沿φ151毫米搪孔和水套之间流出,使水封作用减弱,填料和轴套消耗增快,水套本身在矿浆和高压水冲刷下很快磨损。维护和检修频繁,而且后壳也常在短时间内报废。如不能及时更换备件,轴封不好,常使前轴承进矿损坏。
Nearly 100 sets of 8PSJ lined sand pumps are used in the dressing of our factory. Since its commissioning in 1965, due to the particle size of the slurry delivered by the pump, the pressure is high and the backfill of the pump will wear out quickly. The original diameter of φ151 mm bore hole only 6 months was washed pulp and high pressure water into an oval, so that the water jacket can not be fixed. High-pressure water flows between the φ151 mm boring hole and the water jacket to weaken the water seal and increase the packing and sleeve consumption. The water jacket itself quickly flushes under the erosion of the slurry and the high-pressure water. Frequent maintenance and repair, but also often scrapped after the shell. If you can not replace spare parts, shaft seal is not good, often damage the front bearing into the mine.