Plant fiber preparation system

By improving the plant fiber preparation system and controlling the process parameters, the cost and quality issues of wood and secondary recycled fiber raw materials were solved, and semi-bleached pulp suitable for medium and high-end household paper was prepared, achieving cost reduction and quality improvement.

CN120649323APending Publication Date: 2025-09-16GUANGAN SHIMING TECHNOLOGY DEVELOPMENT CO LTD
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Patent Information

Application Number
CN202510936236.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-08
Publication Date
2025-09-16

AI Technical Summary

Technical Problem

In the prior art, the cost of plant fiber raw materials made from wood is high, and the fiber length of secondary recycled fiber raw materials is uneven, resulting in low paper quality, which is difficult to meet the demand for medium and high-end household paper.

Method used

An improved plant fiber preparation system is adopted, including pipeline pre-preg section, thread rolling section, horizontal tube cooking reaction section, high-consistency pressure pulping machine section, high-consistency bleaching section, pulp washing section, low-consistency grinding section and screening section. By controlling process parameters such as alkali solution dosage, temperature and time, efficient and environmentally friendly semi-bleached pulp is prepared.

Benefits of technology

It reduces the cost of plant fiber preparation, improves the uniformity of fiber length, meets the quality requirements of mid-to-high-end household paper, and replaces traditional high-cost long-fiber raw materials.

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Abstract

The plant fiber preparation system comprises a pipeline presoaking section, a thread rolling section, a transverse pipe cooking reaction section, a high-concentration pressure pulping machine section, a high-concentration bleaching section, a pulp washing section, a low-concentration grinding section and a screening section which are connected in sequence. The pipeline preimpregnation section is formed by connecting a plurality of spiral pipelines, each spiral pipeline comprises a dosing port and a steam port, and the plurality of spiral pipelines form a closed body. By improving a traditional fiber production line and a production process, the prepared semi-bleached pulp can replace a traditional high-cost long fiber raw material to be used for producing medium-grade and high-grade paper for daily use, and the product cost is reduced.
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