| 摘要 |
A rotary screen drum, such as used in the dewatering of sludge, has an inlet 6 at a lower level than an outlet 8, such that if the apparatus becomes blocked, material flows of preference back into the inlet 6 rather than out of the outlet 8. In other terms, the screen drum is angled upwards from inlet 6 to outlet 8. During normal usage, when not blocked, the drum may be used in a horizontal orientation. The drum is driven rotationally by a motor, and an internal screw thread arrangement 23 may progress material along the length of the drum. The orientation of the drum may be adjusted with an actuator 19. |
