| 摘要 |
<p>The device has a drop shaft (8) with a shaft wall (9) e.g. inspection door, comprising a connection opening (10) for connecting feed pipes (11). Guiding plates positioned in the drop shaft are attached to the connection opening. The shaft wall comprises trays that have guides cooperating with the guiding plates. The trays are directed in an acute angle to a longitudinal axis of the drop shaft. The trays are attached to an actuating drives that are connected with each other by an electric controller.</p> |
