| 摘要 |
Disclosed is a fine-screened grid having a screening grate. A slider is guided on the grid grate to remove debris therefrom. The slider is connected to a slider arm which, together with a guide lever, forms a knee lever. The configuration enables the slider to pass over large or heavy objects because it can be moved away from the screening grate as a result of the geometry and kinematics of the knee lever. The system can operate continuously without monitoring, because larger particles which cannot be carried by the slider and which collect at the beginning of the screening grate can be removed when convenient. Rinsing nozzles, which are disposed on the upper end of the screening grate, are provided in order to improve the transfer of retained particles from the slider to a capturing groove.
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