| 摘要 |
The invention comprises equipment for cleaning the walls of a settlement tank of the type having a main reservoir [not shown] and a peripheral channel defined by an outer wall 4 and an inner, dam wall 3 forming a weir over which liquid from the main reservoir may flow into the channel. The equipment includes brushes 15,16 for cleaning the inner surfaces of the channel and a further brush 25 for cleaning the upper edge of the inner wall 3. This brush is mounted resiliently via a leaf spring 23. All the brushes are mounted on a moving girder 9 which is part of a bridge assembly extending across the settlement tank and revolving around it's central point, the tank usually being circular. |
