Pressure knotter screening apparatus

Details Pressure knotter screening apparatus Pressure knotter screening apparatus

D - Textiles, Paper

21

D

209/105, 182/57

D21D 5/02 (2006.01)

Patent

CA 1321551

Abstract of the Disclosure A rotor is disposed concentrically within a cylindrical screen. The rotor carries a plurality of blades in close proximity to the screen to produce hydrodynamic pulses opposing fluid flow to clear the screen. Each blade includes a first portion affixed to the rotor, this first portion including an inclined face and a substantially radially extending face. A second portion of the blade is removably affixed to the radially extending face of the first portion. The removable second portion extends radially beyond the first portion. After the removable portion has become worn from extended use, it can be removed and replaced with a new second portion. In a preferred embodiment, the thickness of the second portion of the blade is equal to or greater than the diameter of holes in the screen. It is also preferred that the length of the second blade portion extending beyond the first portion be greater than the diameter of holes in the screen. In this embodiment the length of the projection of the inclined face of the first portion should be greater than the length of the radially extending face.

592862

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