Abstract:
A multi-zoned paddle screen apparatus (100) is disclosed for separating fiber from a liquid medium during, for example, a grain wet mill or dry grind process. The apparatus includes a housing (106) having first and second zones (108a, 108b) situated adjacent one another along a length (L) of the housing (106). First and second screen sections (102a, 102b) having a plurality of openings (104) may be situated lengthwise within the housing (106) corresponding with the first and second zones (108a, 108b), respectively. The first and second screen sections (102a, 102b) have a circular cross-section, and the second screen section (102b) has a larger diameter than the first screen section (102a). An elongated shaft (130) situated lengthwise within the screen sections (102a, 102b) includes first and second conveyors (128a, 128b), which correspond with the first and second zones (108a, 108b), respectively, having a plurality of paddles (132). Each conveyor (128a, 128b) is configured to move material in a direction along a length of the screen (102a, 102b). There may be more than two zones (108a, 108b).
Abstract:
This invention is directed to a centrifuge rotor, such as for use in a disc nozzle centrifuge, having a bowl including an improved positioning and orientation of discharge nozzles for facilitating tangential flow of fluid discharged therefrom relative to the rotor bowl.