| 摘要 |
<p>An apparatus for removing fluid from a fibrous web (30) in a papermaking machine having a machine direction and a cross machine direction, the apparatus comprising a plurality of generally parallel supports (50) extending in the cross machine direction, the supports being spaced in the machine direction, the supports having mounted thereon respective blades (70) extending in the cross machine direction, the blades being spaced in the machine direction along a convex path for movement of the web over the blades, each blade (70) being movable relative to the respective support (50) in a direction perpendicular to the web such that outward movement of the blade (70) relative to the support (50) presses the blade against the web (30), and a control system for exerting, on each of the blades (70), a force in the direction toward the web (30) so as to press the blade against the web, the control system being operable to vary the force exerted on each of the blades (70) independent of the force exerted on the remaining blades.</p> |
