| 摘要 |
<p>A refining element for disintegrating and refining fiber material in a disc refiner. The refining element is formed with a base surface (1, 11), on which a pattern of bars (2, 12) is arranged. The bars (2, 12) extend over the surface of the refining element and are separated by intermediate grooves (6, 13), and flow restrictions (14) can be located in the grooves (6, 13) between the bars (2, 12). Channels (7, 15) are arranged at the same level as the base surface (1, 11) of the refining element for a free passage of steam outward and inward without obstruction by bars (2, 12) of the refining element, or fiber material in the grooves (6, 13) or flow restrictions (14) in the grooves (6, 13). The upper edges of the bars can thereby remain unbroken.</p> |
