| 摘要 |
<p>A vacuum belt conveyor is suitable for guiding a running paper web, in particular a threading tail (25). It comprises an air-pervious endless conveyor belt (20) travelling around a vacuum box (21) which supports two belt pulleys (22). It also comprises at least one vacuum blower (24) to create a negative pressure within the loop of the belt (20). The vacuum blower (24) is positioned within the vacuum box (21) at a certain distance (d) from the conveying run of the belt (20) and is driven by an airturbine. One of the pulleys (22) is driven by an electric motor (M') positioned inside of that pulley.</p> |
