| 摘要 |
A raking device (1) for separating solids from liquids, for example for sewage-treatment plants, comprises cleaning elements (12) circulating in a raking space and connected to at least one lateral endless chain (8) that is driven by a motor (11). Screen elements (12) with holes are provided as the cleaning elements; they are arranged in steps like an escalator, and at the top of a frame of the device there is a screen element cleaning device (34) with nozzles to clean the screen elements (12) as they go by. The nozzles are arranged on nozzle beams which are driven to move the nozzles back and fourth across the path of the cleaning elements (12) in a swivelling manner. A motor driven cleaning brush (25) is also provided. |
