| 摘要 |
A mobile gravel sorter, which is arranged to move in a direction of travel along a road, comprising a gathering unit which is arranged to gather up granular material from a roadway as the gravel sorter moves in the direction of travel, a sorting unit (30) for sorting and supplying to the roadway the amount of the material that is smaller than a given grain size, and a collecting unit for collecting material exceeding said given grain size. The sorting unit (30) comprises a substantially circular drum which is arranged after the gathering unit in the direction of travel and which has a center axis (32), an inlet means in connection with the gathering unit and an outlet means which is arranged in connection with the collecting unit and separated from the inlet means in the longitudinal diction of the drum, at least one scerw conveyor (34, 35) which extends in the drum between the inlet means and the outlet means about a helical axis which is substantially concentric with the center axis (32) of the drum, and a screen cloth means (37) which is arranged to cover openings in the circumferential surface of the drum. |
