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1. 发明授权

US3981453A Method for segregating bark and foliage from wood chips and twigs 失效
标题翻译：从树枝和树枝上分离树皮和树叶的方法
公开(公告)号：US3981453A
公开(公告)日：1976-09-21
申请号：US528479
申请日：1974-11-29
申请人： Robin Wilfrid Berlyn , James David Hutchinson
发明人： Robin Wilfrid Berlyn , James David Hutchinson
IPC分类号： B27L1/00 , D21B1/02 , D21B1/12 , B02C23/38
CPC分类号： D21B1/023 , D21B1/12
摘要： A method for segregating bark and/or foliage from wood chips and/or twigs in a mixture of such components is provided. The method includes three essential steps. The first step comprises conditioning a pile of such mixture by periodically sprinkling the pile with water during storage. The second step comprises vigorously agitating the conditioned mixture with sufficient water, and for sufficient time to break bonded bark from the wood chips and the twigs and to comminute the bark. The third step comprises wet screening the agitated mixture thereby separating effluent bark and foliage from the wood chips and/or twigs in the mixture. An additional step includes dewatering the effluent bark and foliage, thereby to recover screened out solids materials. This method can be operated successfully on either a batch or a continuous basis without any serious effect on the reduction of pulp quality.
摘要翻译：提供了一种用于将树皮和/或叶子从这些组分的混合物中的木片和/或枝条分离的方法。该方法包括三个基本步骤。第一步包括在储存期间通过周期性地将水堆放在水上来调节一堆这样的混合物。第二步骤是用足够的水剧烈地搅拌调节的混合物，并足够的时间将粘合的树皮从木屑和枝条中分离出来并粉碎树皮。第三步骤是将搅拌的混合物湿式筛选，从而将混合物中的木片和/或枝条中的流出物树皮和叶子分离出来。另外的步骤包括对流出物树皮和叶子进行脱水，从而恢复筛选出的固体物质。该方法可以在批次或连续的基础上成功运行，对纸浆质量的降低没有任何严重影响。

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