Method for treating paper-making broken paper

Abstract

The invention discloses a papermaking broken paper treatment method which comprises the following steps: firstly, crushing broken paper through a broken paper pulper to obtain broken paper pulp, and feeding the broken paper pulp into a broken paper tower for temporary storage; then the broken paper pulp is led into a defibering mechanism, the defibering mechanism conducts feeding and stirring on the broken paper pulp through a stirring unit and pushes the broken paper pulp into a defibering unit, and the broken paper pulp is defibered again through the defibering unit; the defibered broke pulp is screened and filtered through a screening mechanism, and broke accepted pulp obtained through screening is sent back to a pulp mixing pool for pulp preparation and then participates in the papermaking procedure; by arranging the defibering mechanism and the screening mechanism, broken paper pulp generated in the papermaking production process is subjected to defibering, combining and screening treatment to obtain accepted pulp, and then the accepted pulp is directly added into the pulp mixing pool and fed into a pulp preparing system for papermaking use, so that resource waste is avoided.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to a method for processing broken paper in papermaking. Background technique [0002] When producing high-grade packaging paper, the broken paper produced by back copying or broken paper has high strength, and there are still small pieces of paper after being processed by the broken pulper, which cannot be directly added to the paper production system for consumption. [0003] At present, the generated broken paper is temporarily stored in the broken paper tower, and sent to the unloading tower after a period of time, mixed with the pulp processed by the broken paper pulper, and the broken paper pulp produced by the papermaking is mixed. Re-processing through each stage of the pulping process will damage and waste the fibers on the one hand, and increase the energy consumption of pulping on the other hand. SUMMARY OF THE INVENTION [0004] The purpose of the present invention...

AI Technical Summary

Problems solved by technology

[0002] When producing high-grade packaging paper, the broken paper produced by copying or broken paper still has small pieces of paper after being processed by the broken paper pulper due to the high strength of the paper sheet It exists and cannot be directly added to the paper production system for consumption

[0003]Currently, the broken paper produced is temporarily stored in the broken paper tower, and sent to the unloading tower after a period of time to be processed with the broken paper pulper The pulp that has been processed is mixed together, and the broken paper pulp produced by papermaking is reprocessed through each stage of pulping. On the one hand, it will damage and waste the fibers, and on the other hand, it will virtually increase the energy consumption of pulping.

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