Recycling of knots in a continuous process for cooking chemical pulp
    1.
    发明授权
    Recycling of knots in a continuous process for cooking chemical pulp 失效
    在连续煮熟化学纸浆的过程中回收结

    公开(公告)号:US5672245A

    公开(公告)日:1997-09-30

    申请号:US530350

    申请日:1995-11-06

    CPC分类号: D21C9/00 D21C3/22 D21C3/24

    摘要: The present invention relates to a process for continuous cooking of chemical pulp, in which the chips are fed into a chip chute (3), which is arranged on top of a high pressure feeder (4) for passing the chips into a downstream, pressurized continuous digester housing comprising a vertical, elongate digester (5) into which the chips are fed at the top and from which the cooked pulp is fed out at the bottom, in order thereafter to be defibred and washed, after which the defibred pulp is screened, and an accepted flow of pulp is obtained which is fed onwards for continued treatment, and a reject flow is obtained which consists principally of knots, which reject flow is thus separatedoff from the pulp flow, the reject flow, which consists principally of knots, being returned to the chip chute (3), preferably after concentration and washing.

    摘要翻译: PCT No.PCT / SE94 / 01135 Sec。 371日期:1995年11月6日 102(e)日期1995年11月6日PCT 1994年11月28日PCT PCT。 第WO95 / 23257号公报 日期:1995年8月31日本发明涉及一种连续烹饪化学纸浆的方法,其中将芯片进料到芯片槽(3)中,芯片槽(3)布置在高压给料器(4)的顶部,用于使芯片 进入下游加压的连续蒸煮器壳体,其包括垂直的细长的蒸煮器(5),碎屑在顶部被供给到其中,并且从其中将熟的纸浆从底部进料到其中,以便随后被除去和洗涤,之后 对脱纤维的纸浆进行筛选,并且获得可接受的纸浆流,该纸浆向前进料以进行持续处理,并且获得主要由结点组成的废品流,因此废纸流从纸浆流与废浆流分离 主要由节点组成,最好在浓缩和洗涤后返回到芯片槽(3)。