Process for recycling waste dustfree paper and equipment thereof

Abstract

The invention provides a process for recycling waste dustfree paper and equipment thereof. The process comprises the following steps of: 1, collecting and processing waste dustfree paper into a waste roll; 2, feeding the waste roll into a rough pulverizer through a feeding device; 3, pulverizing the waste roll into lamellar bulk material by the rough pulverizer ; 4, pulverizing the lamellar bulk material into fiber material by a first-grade fine pulverizer, wherein the content of single fibers in the fiber material is 60%-80%; 5, pulverizing the fiber material in which the content of the single fibers is 60%-80% into fiber material in which the content of the single fibers is 90% by a second-grade fine pulverizer; and 6, directly feeding the fiber material in which the content of the single fibers is 90% into a dusfree paper forming head. The process has the beneficial effect that the proportion of waste materials can be controlled accurately, and therefore the recycling quality of the pulverized materials and product quality can be improved.

Description

technical field [0001] The invention belongs to the field of recycling waste dust-free paper, and in particular relates to a waste dust-free paper recycling process and equipment thereof. Background technique [0002] Dust-free paper, that is, pulp air-laid paper or dry-laid paper, uses air-laid technology to disperse fibers in fast-flowing air, and uses vacuum and pressure to make wood pulp fibers, chemical fibers, high Molecular water-absorbing particles and other raw materials are formed into a net on the running mesh curtain, and the paper is formed by latex bonding, thermal bonding, hydrogen bonding, etc. This product is also called "air-laid non-woven fabric" or "expanded core material" in our country. [0003] The production of dust-free paper generally includes the main production line and the slitting and packaging line. During the production process, recyclable "waste" such as slitting and trimming waste, large-line boot coils, and unqualified products will inevit...

AI Technical Summary

Problems solved by technology

[0003] The production of dust-free paper generally includes the main production line and the slitting and packaging line. During the production process, recyclable "waste" such as slitting and trimming waste, large-line boot coils, and unqualified products will inevitably be produced. With the technology, the recycling of these waste dust-free papers must be recycled together with the wood pulp board. In operation, the waste paper and waste rolls, etc. from the start-up of the production line are generally sent to the running pulp board manually to be crushed together with the pulp board to the pulverizer. However, there are the following problems: waste products must be fed together with the pulp board, and the feeding quantity of waste products cannot be independently controlled, resulting in an uncertain proportion of waste products, resulting in instability of the quality of the final product, inaccurate control, large manpower, and recycled materials. Poor crushing effect, poor product quality and other technical problems

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