公开(公告)号：US20240410109A1

公开(公告)日：2024-12-12

申请号：US18698077

申请日：2022-10-06

Applicant: ANDRITZ AB

Inventor： Ola LARSSON ,  Michael BERGMANN ,  Hannu PYYKÖNEN ,  Jussi PIIRA ,  Ari HANNIMÄKI ,  Vesa KAIPAINEN ,  Samuli KINNUNEN

IPC: D21C3/22 ,  D21B1/02 ,  D21B1/06 ,  D21C3/26 ,  G01N33/34

Abstract: A method for chemical pulp production in a multi-stage process, comprising a first process stage, comprising a woodyard comprising steps such as debarking, chipping, pile storage and/or reclaim; a second process stage, comprising a fiberline comprising steps such as cooking and/or bleaching; and at least a third process stage; wherein a first set of data is gathered at least at the first and at the second process stage, wherein the first set of data for each process stage comprises measurement results and/or parameters calculated based on measurement results, wherein the measurements and/or parameters are related to raw material, equipment, process measurements and/or product properties; the first set of data is sent to the subsequent process stage, wherein the process steps of the subsequent process stage are adjusted based on the first set of data received; a second set of data is gathered at least at the second and at the third process stage, wherein the second set of data for each process stage comprises information related to availability of processing capacity, predicted availability of processing capacity and/or required material flow or quality; the second set of data is sent to the preceding process stage, wherein the process steps of the preceding process stage are adjusted based on the second set of data received.