Apparatus for disperser plate and method to refine paper

摘要

An assembly of opposing discs or cones for a disperser where each disc or cone has mounted to it a plate or an array of plate segments with a front surface on each plate or array of plate segments and each surface has a series of bars, grooves and dams. The bars are in rows, with the rows separated by annular dams at substantially fixed radial locations, and the grooves are adjacent the bars in the rows so that the grooves form a serpentine passage extending radially between the opposing plates or array of plate segments on the opposing discs or cones. The opposing plate or array of plate segments are arranged such that the annular dams on one plate or array of plate segments face roughly the middle of the row of bars on the opposing plate or array of plate segments.

主权项

1. A disperser assembly comprising:
opposing arrays of fusion plate segments defining a planar gap between the opposing arrays of fusion plate segments, wherein each fusion plate segment comprises a front surface having rows of alternating fusion bars and grooves, wherein each fusion bar has a planar upper surface and each row of alternating fusion bars and grooves is separated by annular dams located at substantially fixed radial locations on the front surface of each opposing fusion plate segment, wherein each groove is disposed substantially co-linear with a radial line extending from a center of rotor rotation to an outer periphery of the front surface, wherein a number of alternating fusion bars and grooves increases as the rows of alternating fusion bars and grooves extends radially outward from an inner periphery of the front surface to the outer periphery, wherein grooves in a row closer to the outer periphery have a width less than the width of grooves in a row closer to the inner periphery, wherein the opposing arrays of fusion plate segments are arranged such that the annular dams on one fusion plate segment align with a row of fusion bars and grooves on an opposing fusion plate segment, and wherein the grooves form a serpentine passage extending radially between the opposing arrays of fusion plate segments.