| 摘要 |
A froth flotation cell comprises an overflow point at which, in use, froth generated in the froth flotation cell overflows to leave the cell, the overflow point defining the overflow level of the froth flotation cell, and a lid at or above the overflow level of the froth flotation cell, and extending over a portion of the flotation cell so that, in use, the lid comes into contact with the froth without substantially reducing the volume of froth within the cell. |
