Wastepaper pulping and papermaking method

A technology for pulping and papermaking and production methods, which is applied in the direction of papermaking, paper machines, and waste paper processing, etc. It can solve the problems of poor recycling of pulp residue and tailings, insufficient optimization of process parameters, and insufficient product yield. Achieve the effect of beautiful appearance, lower production cost and high mechanical strength

Active Publication Date: 2016-07-20
福建利树股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the production system of linerboard is relatively backward, and the pulp residue and tailings produced in the production process of linerboard have not been better recycled, making the yield of the product not high enough
[0003] Moreover, in the prior art, the various process parameters in the production process of the liner linerboard are not optimized enough, so that the energy consumption of the production equipment of the liner liner liner is relatively large, thus resulting in higher production costs

Method used

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  • Wastepaper pulping and papermaking method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] like figure 1 As shown, the production method of waste paper pulping and papermaking: the raw waste paper is transported to the hydropulper through the chain plate machine for disintegration, and the coarse pulp, slag, and plastic are discharged; the fine pulp after the disintegration of the hydropulper is pumped It is conveyed through the high-concentration desander and sent to the unloading tower, wherein the mud and sand screened by the high-concentration desander are discharged; the good pulp in the unloading tower is pumped through a section of coarse screen, and the good pulp is sent to the grading screen pool The pulp in the grading sieve pulp pool is transported to the grading sieve by the grading sieve feeding pump, and is classified into first-grade long fiber and first-grade short fiber after grading and sieving; the first-grade long fiber is transported to the first-stage fine sieve for long fiber, and passed through the first-stage fine sieve for long fiber....

Embodiment 2

[0034] On the basis of Example 1, the tailings of the first section of coarse screening are passed through the second section of coarse screening, and the fine pulp screened by the second section of coarse screening is transported back to the classification screen pulp pool; the tailings screened by the second section of coarse screening can also be transported To the fiber separator, the good pulp separated by the fiber separator is sent back to the hydraulic pulper, and the tailings separated by the fiber separator are discharged outside.

Embodiment 3

[0036] On the basis of Example 1, the tailings of the first-stage fine sieve of the long fiber can be transported to the second-stage fine sieve of the long-fiber, and the fine pulp processed by the second-stage fine sieve of the long-fiber can be transported to the first-stage slag remover of the long-fiber. The tailings treated by the second-stage fine screening of long fibers are transported to the slurry line for treatment and reuse.

[0037] The raw material of the invention can be waste paper or bamboo fiber processed from bamboo leftovers. The invention recycles and reuses waste resources, saves production costs, and achieves better environmental protection effects.

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Abstract

The invention discloses a wastepaper pulping and papermaking method, and relates to the technical field of testliner board. The method specifically adopts the devices such as a hydraulic pulper, a high-concentration desander, an unloading tower, a grading sieve slurry tank, a grading sieve, a filament first-stage slag remover, a filament multi-disk, a filament pulp tower, a bottom layer pre-papermaking tank, a staple grading sieve, a filament first-stage slag remover, a staple low-concentration desander, a staple multi-disc, a heat dispersion system, a staple pulp tower, a surface-layer pre-papermaking tank deduster, a bottom-layer headbox, a surface-layer headbox, a press section, a drying section, a sizing machine, a calender, a reeling machine, a re-reeling machine, and the like. The method has a high finished product conversion rate. With the method, 20000 tons of wastepaper can be saved per year, such that production cost can be reduced. Process parameters are optimized, such that unit product energy consumption is reduced, and energy is saved. Therefore, the production cost is further reduced.

Description

technical field [0001] The invention relates to the technical field of production of liner board paper, in particular to a production method of waste paper pulping and papermaking. Background technique [0002] Linerboard is one of the components of many packaging boxes and packaging boards. The production process of liner linerboard needs to go through many processes, and the production of liner linerboard requires more equipment. In the prior art, the production system of the linerboard is relatively backward, and the pulp residue and tailings produced in the production process of the linerboard have not been well recycled, so that the yield of the product is not high enough. [0003] Moreover, in the prior art, the various process parameters in the production process of the liner liner paper are not optimized enough, so that the production equipment of the liner liner liner paper consumes a lot of energy, thus resulting in relatively high production costs. SUMMARY OF T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21C5/02D21D5/02D21F11/12
CPCY02W30/64
Inventor 诸建华欧军
Owner 福建利树股份有限公司
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