Method for producing corrugated paper by utilizing papermaking waste residues and sludge

A papermaking waste residue and production method technology, applied in papermaking, papermaking machines, textiles, papermaking, etc., can solve problems such as environmental pollution and safety hazards, waste of land and forest resources, etc., to avoid pollution, save papermaking raw materials, and save processing costs Effect

Inactive Publication Date: 2011-04-06
SHANDONG TIANDIYUAN IND
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The papermaking waste and sludge discharged by these enterprises waste huge land and...

Method used

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  • Method for producing corrugated paper by utilizing papermaking waste residues and sludge
  • Method for producing corrugated paper by utilizing papermaking waste residues and sludge
  • Method for producing corrugated paper by utilizing papermaking waste residues and sludge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] 1. Pulping:

[0018] 1) The waste containerboard is sent to the hydraulic pulper by the chain conveyor to disintegrate the waste paper, and at the same time, the waste residue and sludge are introduced into the hydraulic pulverizer for crushing and mixing at the same time. The moisture content of the papermaking waste residue is 65%, and the moisture content of the sludge is 80%; the weight ratio of the waste container board paper to the papermaking waste residue and the sludge is 10:6:5.

[0019] 2) Send high-concentration slag remover to remove heavy impurities such as stones and iron filings

[0020] The pulp from the hydropulper is pumped into the high-consistency cleaner along the tangential direction from the top of the high-consistency cleaner. With the help of the high-speed rotating impeller close to the pulp inlet, the pulp is made into the cleaner at a high speed. Rotating motion, correspondingly affected by the centrifugal force, the slurry moves downward a...

Embodiment 2

[0033] (1) Pulping: the waste containerboard is sent by the conveyor to the hydraulic pulper for waste paper disintegration, and at the same time, the waste residue and sludge are introduced into the hydraulic pulverizer for crushing and mixing; then sent to the high-concentration slag remover for removal Heavy impurities such as stones and iron filings; after the heavy impurities are removed, the coarse pulp is decompressed and graded by a fiber separator; then the pulp is vibrated and screened by a vibrating frame-type flat screen, and the good pulp is further screened by a pressure screen, and the qualified fibers are sent to the round After being concentrated by the net thickener, it enters the papermaking section; the moisture content of the papermaking waste residue is 70%, and the moisture content of the sludge is 78%; the weight ratio of the waste boxboard to papermaking waste residue and sludge is 10:5: 4.

[0034] (2) Papermaking: The slurry from the self-made pulp s...

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Abstract

The invention discloses a method for producing corrugated paper by utilizing papermaking waste residues and sludge. The production method comprises the following steps of: (1) pulping: breaking waste cardboard paper; meanwhile, introducing the waste residues and sludge into a hydraulic pulverizer and simultaneously pulverizing and mixing; then feeding into a high-concentration residue removing machine and removing heavy impurities; after the heavy impurities are removed from rough slurry, defibering and grading by a defibering machine; vibrating and screening the pulp by a vibration-frame type flat screen; after good pulp is further screened by a pressure screen, feeding qualified fibers into a circular screen concentrator and concentrating and delivering the qualified fibers into a papermaking section; and (2) papermaking: delivering the pulp into a preparing pool; after delivering to a high-level box by a pump, delivering the pulp to a front pressure screen and carrying out fine screening; then delivering to a circular screen part and a squeezing part; and drying in a drying part, then rewinding, cutting and packaging for storage. The method of the invention recycles the waste residues and the sludge generated in the production, saves great papermaking raw materials, prevents the emission of various waste materials and really achieves zero emission.

Description

technical field [0001] The invention relates to a method for producing corrugated paper, in particular to a production method for producing corrugated paper by using papermaking waste residue and sludge. Background technique [0002] Corrugated paper is a plate made of liner paper and corrugated corrugated paper formed by processing corrugated sticks. It began at the end of the 18th century, and its application increased significantly in the early 19th century because of its light weight, low price, wide range of uses, easy production, and the ability to recycle or even reuse. By the beginning of the 20th century, it had obtained a comprehensive generalization, promotion and application for the production of packaging for various commodities. Since the packaging container made of corrugated cardboard has its unique properties and advantages for beautifying and protecting the goods inside, it has achieved great success in the competition with various packaging materials. It...

Claims

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Application Information

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IPC IPC(8): D21F11/12D21H17/01D21B1/32
CPCY02W30/64
Inventor 刘涛赵怀礼周良范
Owner SHANDONG TIANDIYUAN IND
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