Improved production process for producing corrugated core paper by using waste paper

A corrugated core paper and production process technology, applied in papermaking, paper recycling, textiles and papermaking, etc., can solve the problems of reduced physical properties, increased water consumption, fiber damage, etc., to reduce input and addition, and reduce papermaking water consumption. , the effect of reducing damage to fibers

CN109371730AActive Publication Date: 2019-02-22东莞顺裕纸业有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-02-22

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Abstract

The invention discloses an improved production process for producing corrugated core paper by using waste paper. The improved production process comprises the steps of paper cutting, repulping, low-concentration residue removal, low-concentration filter pressing, high-concentration residue removal, high-concentration filter pressing, pulp grinding, screening, blending, paper manufacturing with pulp and formation, drying, squeezing and the like. A traditional production process is improved, an ultrasound pulp grinding process basically does not damage fiber in waste paper in the pulp grinding process, the water quantity for papermaking is decreased while the pulp grinding efficiency is improved and damaged fiber is decreased, the putting and adding amount of chemical materials is decreased,more energy is saved and the environment is protected in the production process, and high-strength corrugated core paper is produced.
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Description

Technical field

[0001] The invention relates to the technical field of using waste paper to produce corrugated core paper, in particular to an improved production process for using waste paper to produce corrugated core paper. Background technique

[0002] The use of waste paper to produce corrugated core paper and the recycling of waste paper are of great significance to reduce the production cost of producing corrugated core paper while protecting the ecological environment.

[0003] However, since the recycled waste paper may be waste paper boxes or waste paperboards obtained through secondary papermaking or tertiary papermaking production, the physical properties of the fibers in the waste paper will be greatly reduced, and the process of using waste paper to produce corrugated core paper Especially in the refining process, a larger proportion of water is required, and the water consumption becomes larger. At the same time, most of the fibers will be damaged in the refining pro...

Examples

Embodiment Construction

[0043] The following are only preferred embodiments of the present invention and do not limit the protection scope of the present invention.

[0044] An improved production process of using waste paper to produce corrugated core paper includes the following steps:

[0045] In the paper cutting step, the recovered waste paper is cut into thin strips by a slitting machine to obtain strip waste paper.

[0046] In the pulping step, the strip-shaped waste paper is put into the pulping bucket, the recycled water of the papermaking enterprise is injected into the pulping bucket, and the strip-shaped waste paper is broken into a slurry, and the slurry in the pulping bucket is divided to obtain waste Paper pulp.

[0047] In the sludge sewage treatment step, heavy slag is removed from the bottom of the pulping bucket, the sewage and sludge in the heavy slag are separated through the mud-water separation equipment, and the sludge is transported to the sludge drying treatment equipment for drying...