| 摘要 |
A system of excavations and devices for the removal of sediments from underground settling ponds, particularly mine take settling basins closed with dams, characterized in that the corridor transportation excavation (5) is situated in front of dams (2, 3) and below the level of the mine take settling tank (1), and between these excavations (1,5), it has a funnel (4) closing from below, whose upper edge is connected with a discharge chute (6) extending from the bottom external edge of the dam (2) to the funnel (4), and on the rails (10) of the cableway under the roof along the mine take settling tank (1) it has a suspended scraper (12) lifted permanently directly above the floor of the mine take settling tank (1).<IMAGE>
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