| 摘要 |
<p>The invention relates to a dredge head for dredging sludge from a stationary dredger, characterized in that it consists of a space with an elongated opening, each of the longitudinal edges of which, directed towards one another, are equipped with scrapers (4,5) which are directed towards one another, the first one (4) of which is fixed with respect to the dredge head itself whilst the second scraper (5) is adjustable in height, together with a visor (7), with respect to the first scraper (4). <IMAGE></p> |
