| 摘要 |
<p>The invention relates to an insertion shaft (1) for a collection plant (16), comprising an upper shaft pipe (2) having a shell surface (4), an upper end surface (6) and a lower end opening (8). A first insertion opening (10) is disposed in the upper shaft pipe (2) and a hatch (12) is provided for the first insertion opening (10). A force member (11) is connected to the hatch (12) and a control unit (14) is coupled to the force member (11), so that the hatch (12) is adjustable into at least two positions in relation to the first insertion opening (10).</p> |
