Waste paper deinking regenerated cultural paper and manufacturing method thereof

A manufacturing method and technology for deinking waste paper, applied in the field of papermaking, can solve the problems that ink particles cannot be directly detected, cannot effectively control air bubbles, and ink particles are not removed cleanly, so as to increase generation time, reduce costs, and change generation. amount of effect

Active Publication Date: 2022-03-04
五洲特种纸业(江西)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the ink particles in the waste paper slurry cannot be directly detected to know how much it is, and the amount of air bubbles cannot be effectively controlled; at the same time, the air bubbles need to pass through the pores, and air bubbles are formed after passing through the pores, and the size of the bubbles is related to the size of the pores , the common pores are fixed, and a certain size of bubbles is always generated in a certain part, resulting in unclean removal of ink particles

Method used

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  • Waste paper deinking regenerated cultural paper and manufacturing method thereof
  • Waste paper deinking regenerated cultural paper and manufacturing method thereof
  • Waste paper deinking regenerated cultural paper and manufacturing method thereof

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specific Embodiment 1

[0057] Specific embodiment one: please refer to Figure 1-2 A kind of manufacturing method of waste paper deinking regenerated culture paper, comprises the following steps:

[0058] S1. Ingredients: waste paper is mixed with water to form waste paper slurry, and the concentration of waste paper slurry is 23-25%;

[0059] S2. Pulping: Put the waste paper slurry in a hydropulper, and add a silicon deinking agent at the same time, so that the waste paper is disintegrated into fibers, and the ink particles in the flakes are dispersed, and large particles of impurities are separated from the fibers;

[0060] S3. Purification: The pulped waste paper pulp is placed in high-consistency slag remover, low-concentration slag remover, compound coarse screen machine, coarse pulp tower, and heavy slag remover to separate large particles of impurities in the pulping process remove;

[0061] S4. Flotation: By introducing air bubbles and surfactants into the purified waste paper slurry, the ...

specific Embodiment 2

[0074] Specific embodiment two: on the basis of specific embodiment one, please refer to image 3 A method for manufacturing waste paper deinking recycled cultural paper, the bottom wall of the flotation tank 1 has a multi-layer air outlet ring, each layer of air outlet rings includes a plurality of uniformly distributed air holes 101, and the multi-layer air outlet rings are formed by a plurality of concentric circles The form distribution; the concentric circle is coaxial with the main axis 2;

[0075] The abutment block 401 has a variety of specifications, and the length of the connecting rod of the abutment block 401 of different specifications is different, and the number of specifications corresponds to the number of layers of the air outlet circle; the range of motion of the abutment block 401 of each specification covers the corresponding air outlet circle. The position of the movable end of the cam in the free state.

[0076] The connecting rods corresponding to the ...

specific Embodiment 3

[0077] Specific embodiment three: different from specific embodiment two, please refer to Figure 4 A manufacturing method of waste paper deinking recycled cultural paper, the abutment block 401 has only one specification, that is, the abutment block 401 only drives the cam corresponding to the air hole 101 of the air outlet ring closest to the main shaft 2; the air outlet ring of each layer The number of air holes 101 is consistent, and the air holes 101 of different air outlet rings are all located on the same straight line, and the cams of the air holes 101 located on the same straight line are connected by brackets. When the cam closest to the main shaft 2 rotates, the bracket drives the remaining cams to Rotate to the same time, effectively avoid too many connecting rods hindering the rise of bubbles, and increase the combination rate of bubbles and ink particles.

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Abstract

The invention discloses waste paper deinking regenerated cultural paper and a manufacturing method thereof, and belongs to the field of papermaking. The invention relates to a manufacturing method of waste paper deinking regenerated cultural paper. The manufacturing method comprises the following steps: S1, preparing materials: mixing waste paper with water to form waste paper pulp; s2, pulping: defibering the waste paper into fibers, and dispersing sheet ink particles; s3, purification: removing large-particle impurities separated in the pulping process; the viscous impurities gather on the upper layer of the waste liquid pulp and are scraped away by a scraping plate, the fifth step of concentration, the waste paper pulp is concentrated, and the sixth step of heat dispersion, the concentrated and heated waste paper pulp is introduced into a heat dispersion machine; s7, bleaching: introducing the waste paper pulp into a bleaching tower; s8, making paper: regenerating the cultural paper; when sticky impurities in waste paper pulp are removed through flotation, the size of bubbles can be automatically adjusted, the generation frequency of the bubbles of all the sizes can be automatically adjusted, and it is effectively guaranteed that sticky substances of all the sizes in the pulp are removed.

Description

technical field [0001] The invention belongs to the field of papermaking, and more specifically relates to a waste paper deinking recycled cultural paper and a manufacturing method thereof. Background technique [0002] In the waste paper deinking regeneration process, deinking is an important link. [0003] The flotation method is a method to achieve separation by utilizing the different wettability of fibers, fillers and inks, and using the mechanism that different particles have different surface properties; in this method, hydrophobic particles or surfactants are used Its hydrophilic to hydrophobic particles adsorb on the air bubbles in the pulp suspension, float up and separate from the pulp. Since the fibers are always bonded with viscous impurities, the viscous impurities mainly include ink particles, and the flotation method relies on air bubbles to capture ink particles; when the air bubbles carrying the ink rise to the liquid surface, a foam layer is formed, which...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21B1/32D21B1/34D21C5/02D21D5/02D21H11/14D21H27/00
CPCD21B1/327D21B1/345D21C5/027D21D5/02D21H11/14D21H27/00Y02W30/64
Inventor 赵磊王勇石忠收
Owner 五洲特种纸业(江西)有限公司
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