Method for recycling papermaking waste residues

A papermaking waste residue and recycling method technology, which is applied in the direction of paper recycling, papermaking, recycling technology, etc., can solve the problems of unfavorable large-scale popularization and use, complicated process steps, and high equipment cost, so as to facilitate large-scale popularization and application, The effect of simple process and low equipment cost

Inactive Publication Date: 2012-09-19
DONGGUAN NINE DRAGONS PAPER IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the process steps of this prior art are complicated, the equipment cost is high, and at the same time, secondary energy needs to be invested to dehydrate the waste residue, and the production cost is high, which is not conducive to large-scale popularization and use.

Method used

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  • Method for recycling papermaking waste residues
  • Method for recycling papermaking waste residues

Examples

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Effect test

Embodiment 1

[0025] like figure 1 As shown, a method for recycling papermaking waste slag in this embodiment includes the following processing steps: Impurity removal: use a suspended permanent magnet iron remover with a magnetic strength of 8000 gauss to remove and recycle the metal in papermaking waste slag; use a belt conveyor to The paper-making waste after removing impurities is transported to the crusher, and the conveying speed of the belt conveyor is 25 m / min; Crushing: put the paper-making waste after removing impurities into the crusher, so that the paper-making waste is fully crushed, and the diameter of the crushed paper-making waste is 3cm; slag washing, sorting and recovery: under the action of hydraulic impact, papermaking waste slag can settle and recover light metals that cannot be magnetically attracted by permanent magnetic iron remover at the front of the sorting tank, and can settle and recover gray sand in the middle of the sorting tank Cloth residues and other non-re...

Embodiment 2

[0028] like figure 1 As shown, a method for recycling papermaking waste slag in this embodiment includes the following processing steps: Impurity removal: use a suspended permanent magnet iron remover with a magnetic strength of 10,000 gauss to remove and recycle metals in papermaking waste slag; use a belt conveyor to The papermaking waste slag after impurity removal is transported to the crusher, and the conveying speed of the belt conveyor is 30m / min; crushing: put the papermaking waste slag after the impurity removal into the crusher, so that the papermaking waste slag is fully broken, and the diameter of the papermaking waste slag after crushing is 5cm; slag washing, sorting and recovery: under the action of hydraulic impact, the papermaking waste can settle and recover light metals that cannot be magnetically attracted by the permanent magnet iron remover at the front of the sorting tank, and can settle and recover gray sand rags in the middle of the sorting tank Residue...

Embodiment 3

[0030] like figure 1 As shown, a method for recycling papermaking waste slag in this embodiment includes the following processing steps: Impurity removal: use a suspended permanent magnet iron remover with a magnetic strength of 15,000 gauss to remove and recycle the metal in papermaking waste slag; use a belt conveyor to The paper-making waste after removing impurities is transported to the crusher, and the conveying speed of the belt conveyor is 30 m / min; Crushing: put the paper-making waste after removing impurities into the crusher, so that the paper-making waste is fully crushed, and the diameter of the crushed paper-making waste is 8cm; slag washing, sorting and recovery: under the action of hydraulic impact, papermaking waste slag can settle and recover light metals that cannot be magnetically attracted by permanent magnetic iron remover at the front of the sorting tank, and can settle and recover gray sand in the middle of the sorting tank Cloth residues and other non-...

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Abstract

The invention relates to the technical field of processing of papermaking waste residues, in particular to a method for recycling papermaking waste residues. The method for recycling the papermaking waste residues comprises the processing steps of impurity removal, smashing, washing slag separation and recycling and filtering, wherein the impurity removal is performed to remove metal in the papermaking waste residues, the impurity-removed papermaking waste residues are put into a smashing machine in the smashing step to enable the papermaking waste residues to be smashed completely, a sorting pool is utilized to classify and recycle materials in the papermaking waste residues in the step of washing slag separation and recycling, and papermaking waste water produced after the separation and recycling is filtered to recycle paper pulp fiber. By means of the method for recycling the papermaking waste residues, more than 40% of materials in the waste residues can be recycled, the recycle rate of the materials in the papermaking waste residues is high, and the method has the advantages of being simple and mature in process and low in device cost and production cost and facilitating large-scale general popularization and application.

Description

technical field [0001] The invention relates to the technical field of papermaking waste residue treatment technology, in particular to a method for recycling papermaking waste residue. Background technique [0002] Waste paper recycling is an effective way to solve the shortage of raw materials for papermaking, which can save resources and reduce costs. It is an important measure for my country's papermaking industry to solve the shortage of fiber raw materials. However, in the papermaking process of waste paper, a large amount of waste residue is discharged after waste paper is beaten and screened. The main components of papermaking waste residue include hard substances such as waste plastics, pulp, and metals, as well as other substances such as plastic films and rags. Plastics, plastic films and rags are not perishable and are directly discarded in landfills, seriously affecting the ecological environment. Waste paper making is different from virgin wood pulp papermaki...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00B09B5/00D21C5/02B03C1/02
CPCY02W30/64
Inventor 刘名中林新阳张益安伍忠磊樊会娜
Owner DONGGUAN NINE DRAGONS PAPER IND
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