| 摘要 |
<p>A cover (10) for a mineral processing tank (12), the cover (10) comprising a plurality of segments (14) made of lightweight material connected together in a generally circular configuration, so as to be able to float on, and cover substantially the whole of, the surface in the tank (12). Each of the segments (14) is preferably designed so that an upper surface of the cover (10) slopes generally downwards in a radially inwards direction from a maximum height near an outer periphery (36) to a minimum height near the centre.</p> |
