| 摘要 |
A grinding mill requiring one or more new grinding balls is adapted so that they can be passed into the mill through spider-guide apertures 30. The spider-guide apertures provide anchors for spider-guide mountings 18, by means of which a "spider" used to grip an upper grinding ring is restrained against rotation. There may be provided two mounting frames between the spider-guide mounting 18, and the mill. Frame 36 is secured to the mill and has a large opening, able to pass a grinding ball. Frame 38 is secured to frame 36 and has a smaller opening, and provides a mounting location for the spider-guide mounting 18. The arrangement means that mill disassembly and lifting then lowering grinding balls is no longer needed. |
