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Environment-friendly deinking residue recovery and treatment production method

A technology of recycling treatment and production method, which is applied in paper recycling, fiber raw material processing, recycling technology, etc., can solve the problems of low recovery efficiency of deinking slag, high processing cost, and non-environmental protection, so as to save environmental protection management costs and improve environmental protection. Paper strength and the effect of saving paper production costs

Active Publication Date: 2017-10-20
LIANSHENG PAPER IND LONGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] For this reason, it is necessary to provide an environmentally friendly deinking slag recovery and processing production method to solve the technical problems of low recovery efficiency of deinking slag in the prior art, not being environmentally friendly, and high processing costs

Method used

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  • Environment-friendly deinking residue recovery and treatment production method
  • Environment-friendly deinking residue recovery and treatment production method
  • Environment-friendly deinking residue recovery and treatment production method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] A kind of environment-friendly deinking slag recovery treatment production method, comprises the following steps:

[0052] Deinking residue collection:

[0053] The deinking slag produced in the deinking pulp line flotation tank and defoaming tank equipment is sent to the deinking slag collection tank through water flow gravity or pumped; the deinking slag collection tank is controlled by liquid level and sent to the next process for deinking The flow of slag is automatically adjusted according to the liquid level. Keep the liquid level of the collection tank stable and effectively prevent leakage caused by excessive liquid level.

[0054] In the present embodiment, the volume of the deinking slag collection tank is 25m 3 , the collected deinking slag has a flow rate of 2500-4000L / min and a concentration of 1-2%. Select a suitable centrifugal pulp pump to transport the deinking slag to the chemical reactor and mix it with the flocculant.

[0055] Flocculation pretrea...

Embodiment 2

[0096] The difference between the environmentally friendly deinking slag recovery and processing production method disclosed in this embodiment and the first embodiment is that the composition of phosphate grafted cationic starch in the deinking sludge backfill agent A is 75 parts;

Embodiment 3

[0098] The difference between the environmentally friendly deinking slag recovery and processing production method disclosed in this embodiment and the first embodiment is that the composition of phosphate ester grafted cationic starch in the deinking sludge backfill agent A is 85 parts;

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Abstract

The invention relates to an environment-friendly deinking residue recovery and treatment production method, which includes the following steps: deinking residue collection, flocculation pretreatment, concentration pretreatment, screw presser pressing, deinking residue dilution, deinking residue storage, deinking residue screening, dilution for concentration regulation and preparation and dosing of chemical. Deinking sludge backfill agent A and deinking sludge backfill agent B are mixed for preparation, deinking residue reacts with chemical for modification, pulp is prepared from the deinking residue, and papermaking is carried out by approach flow. According to the invention, the deinking residue is completely hermetically treated at high efficiency and automatically utilized, the problem of complete environment-friendly paper-mill deinking residue treatment is solved, the environment-friendly deinking residue treatment cost is reduced, the papermaking production cost is reduced, and the economic benefit is remarkable.

Description

technical field [0001] The invention relates to the technical field of deinking slag treatment, in particular to an environment-friendly deinking slag recovery and production method. Background technique [0002] The deinking slag produced by the recycling of waste paper in the paper industry is included in the National Hazardous Waste List according to the national environmental protection regulations. "Code": 221-001-12; "Waste Name": deinking slag produced during the waste paper recycling process, "Hazardous Characteristics": T (Toxicity, T). The deinking slag included in the "National List of Hazardous Wastes" must be managed in accordance with hazardous wastes in its production, storage, transportation, reception, and disposal, and strictly abide by relevant national regulations. [0003] There are following methods to deal with it in the prior art: [0004] 1. Incineration method: [0005] At present, the traditional method of many large paper mills at home and abro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21C5/02
CPCD21C5/025Y02W30/64
Inventor 王贵敏陈光军
Owner LIANSHENG PAPER IND LONGHAI
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