High pressure feeder pivotal center screen

摘要

A high pressure transfer device and a method of continuously conveying a liquid suspension of particulate material utilizing the transfer device are provided. The device includes a pocketed rotor rotatable in a housing, with a center screen mounted in each rotor. The screen is mounted within each pocket interior so that as liquid under pressure enters the pocket through its inlet the screen will move to enlarge the volume between the inlet and the screen. This is accomplished by forming each screen as two screen portions and mounting the screen portions for pivotal movement with respect to a center post extending in the pocket coextensive with the rotor axis of rotation. Stops are provided extending from the pocket walls to prevent the screen portions for pivoting into alignment with the pocket inlet or outlet, and each pocket preferably has a substantially circular cross-sectional internal configuration. The rotor portions are constructed so that they may be machined, allowing accurate and relatively inexpensive construction thereof.