| 摘要 |
<p>Apparatus is disclosed for pumping a pulp suspension including a housing and an impeller including a central hub, a wheel disk surrounding the central hub, and pump blades extending radially from the central hub along the wheel disk, which includes at least one opening for discharge of an entrained gas from the pump suspension, a vacuum pump at the rear face of the impeller, and vacuum pump blades mounted for rotation within the vacuum pump housing, which includes an outer wall which is eccentrically disposed with respect to the vacuum pump blade, and a rear wall which includes a suction port for receiving the entrained gas, and with the vacuum pump housing mounted adjacent to the central hub to provide a gap therebetween, so that vacuum pump housing is axially adjustable so that the gap can be altered by axial adjustment of the vacuum pump housing.</p> |
