首页>
外国专利>
METHOD FOR RECOVERING RAW MATERIALS FROM A REMOVED OR RECOVERING FLOW CURRENT FROM THE PAPER PRODUCTION AND PLANT THEREFOR
METHOD FOR RECOVERING RAW MATERIALS FROM A REMOVED OR RECOVERING FLOW CURRENT FROM THE PAPER PRODUCTION AND PLANT THEREFOR
展开▼
机译:从造纸和植物生产中去除或回收的流动电流中回收原料的方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
This invention relates to a process for recovering raw materials from a stream of residual or collected material (R) which comprises a plurality of different materials and which arises during the manufacture of paper (P) in a paper mill (1) and/or in a material processing installation (2) and/or in a paper machine (3) and which is discharged therefrom, wherein the stream of residual or collected material (R) is fed to an installation (4) for separating at least one fiber fraction contained in the stream of residual or collected material (R) via a screening operation and for separating an ash fraction (A) comprising black particles. In order to achieve cost-effective recovery of the raw materials, it is specified according to the invention firstly that the separation of the fiber fraction via screening is effected, in accordance with the process, before the separation of the ash fraction (A) containing black particles, and secondly that the paper fraction is classified, depending on the desired paper size, into at least two different classes of fiber, preferably into long fibers (LF), short fibers (KF) and/or broken fibers (BF), by a screening operation in each case.
展开▼