Method for forming full pulp by processing bobbin paper waste pulp residues and producing protoplasm by using formed full pulp

A bobbin paper and pulping technology, which is applied in the field of pulp manufacturing, can solve the problems affecting the quality of the bobbin paper finished product, cannot be better cleaned, and the fiber binding force is reduced, and achieves high circumferential pressure, easy control, and layering. The effect of strong bonding force

Inactive Publication Date: 2014-12-17
TANGSHAN TIANZHENG IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the lignin content in the waste pulp residue is relatively high, and its existence will affect the beating effect, making the fibers unable to moisten and swell, and cannot be better broomed. Reduce the strength of the paper, make the paper discolored and brittle; in addition, a

Method used

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  • Method for forming full pulp by processing bobbin paper waste pulp residues and producing protoplasm by using formed full pulp
  • Method for forming full pulp by processing bobbin paper waste pulp residues and producing protoplasm by using formed full pulp
  • Method for forming full pulp by processing bobbin paper waste pulp residues and producing protoplasm by using formed full pulp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Example 1 A method of treating bobbin paper waste into pulp

[0057] like figure 1 As shown, the preparation method of slurry n1 in this embodiment is carried out in sequence according to the following steps:

[0058] (n11) removal of impurities

[0059] Pass the waste slurry through the impurity separator to remove foam, plastic and other light impurity components to obtain A1;

[0060] Send A1 into a coarse sieve with a sieve width of 0.22mm, remove impurities and send it into a desander, after removing sand, the slurry enters the slurry tank to obtain B1;

[0061] (n12) heating up

[0062] Raise the temperature of B1 to 90°C and keep it warm for 4 minutes to obtain C1;

[0063] (n13) Refining

[0064] C is sent to the refiner for beating. The disc speed of the refiner is 750rpm. The material of the disc is high chromium alloy steel. Then get into slurry n1.

[0065] After the waste pulp slag in this embodiment goes through the heating process, the lignin con...

Embodiment 2-4

[0067] Embodiment 2-4 The method for processing bobbin paper waste pulp slag into pulp

[0068] Embodiments 2-4 respectively provide a method for treating bobbin paper waste slag into sizing n2-n4, and their steps are the same as in embodiment 1, the only difference is that the corresponding technologies involved in each method The parameters are different, see the table below for details.

[0069]

[0070] The fibers in the pulping n2-n4 provided by the above examples have high specific surface area, good brooming performance, and strong bonding force between fibers. The preparation method is simple, easy to control, less equipment investment, and short production cycle. The pulp slag turns waste into treasure, saves resources, can prepare raw pulp for bobbin paper production, and can reduce the production cost of bobbin paper raw pulp.

Embodiment 5

[0071] Example 5 A method of producing bobbin paper raw pulp by using bobbin paper waste slag to sizing

[0072] This embodiment is a method for producing bobbin paper raw pulp by using pulp n1-n4 treated with waste pulp residue of bobbin paper. The pulp m5 is mixed according to the weight ratio of 1:4. in:

[0073] like figure 2 As shown, the preparation method of slurry m5 is carried out according to the following steps:

[0074] (m51) Pulping

[0075] After the waste cardboard is pulped by a hydraulic pulper, D5 is obtained;

[0076] (m52) removal of impurities

[0077] D5 passes through the high-concentration slag remover and the medium-concentration slag remover to remove the pulp slag in the slurry to obtain E5;

[0078] (m53) Fiber Separation

[0079] E5 is sent to the single-effect fiber separator for fiber separation, and the effective slurry F5 is separated. After the effective slurry, E5, enters the fiber separator, the fiber is crushed by the blade and de...

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Abstract

The invention discloses a method for forming a full pulp by processing bobbin paper waste pulp residues and producing protoplasm by using the formed full pulp. The method is characterized in that heating is carried out before pulping during the treatment of waste pulp residues, so it is in favor of fibrillation of filers in the waste pulp residues during pulping, a waste paper pulp is processed in grading to respectively prepare a core pulp, a surface pulp and a bottom pulp, the above three pulps are mixed to form a full pulp, and the waste paper pulp grading treatment is in favor of the fiber length equalization; and the full pulp obtained after processing the waste pulp residues is mixed with the full pulp prepared from waste paper boards in proportion to produce the bobbin paper protoplasm. The method changes the waste pulp residues into valuables and reduces the production cost of bobbin paper, and the bobbin paper prepared by using the protoplasm has high strength, and large interlayer bonding force and circumferential pressure. The method is suitable for producing the bobbin paper protoplasm.

Description

technical field [0001] The invention belongs to the field of paper pulp production and relates to the preparation of bobbin pulp, in particular to a method for treating bobbin paper waste into pulp and using the corresponding pulp to produce raw pulp. Background technique [0002] Bobbin paper is an industrial technical paper used by chemical fiber equipment factories in the textile industry. It can be used to make filament high-speed spinning cores. It not only requires high dry and wet strength, smoothness and wear resistance, but also must have the characteristics of oil resistance and water resistance, and it is required to be lint-free, deformable and stable in the polyester spinning process after being rolled into a tube. burst. Based on the above characteristics, bobbin paper is required to have certain physical strength and high quantitative. Pulp is one of the important factors affecting the quality of bobbin paper products. Usually, pulp is made from waste paper....

Claims

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Application Information

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IPC IPC(8): D21B1/32D21H11/14
CPCY02W30/64
Inventor 韩宏伟
Owner TANGSHAN TIANZHENG IND
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