| 摘要 |
A highly wear-resistant composite impeller for use in centrifugal slurry pumps has a base 4 and a cover plate 6 formed of a material, such as steel, which can be worked with relative ease, and an insert sandwiched between the base and cover plate formed of a high temperature and wear-resistant refractory material. The insert has a plurality of impeller drive vanes 16 and may be constructed from a plurality of interlocking segments 10. In use slurry is received and driven by the segments 10 and has little, if any, contact with the base and cover plate. <IMAGE> |
