Environment-friendly deinking sludge and OCC pulp treatment production method

A production method and an environmentally friendly technology, which can be applied in the processing of fiber raw materials, textiles and papermaking, and papermaking, etc., can solve the problems of waste of resources, difficult storage and processing of deinking residues, and high processing costs.

Active Publication Date: 2017-09-01
LIANSHENG PAPER IND LONGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] For this reason, it is necessary to provide an environmentally friendly deinking slag and OCC pulp treatment production method, which is used to solve the technical problems of difficult storage and processing of deinking slag, resource waste, environmental protection, and high processing cost in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A kind of environment-friendly deinking slag and OCC slurry treatment production method, comprises the following steps:

[0046] Deinking residue collection:

[0047] 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.

[0048] In the present embodiment, the volume of 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.

[0049] Flocculation pretrea...

Embodiment 2

[0081] The difference between the environmentally friendly deinking slag and OCC pulp treatment production method disclosed in this embodiment and the first embodiment is that in the step of mixing and concentrating the deinking slag and OCC pulp, the deinking slag and OCC waste paper slurry are mixed for dehydration and concentration, Among them, deinking slag accounts for 20% of the total weight, and OCC waste paper pulp accounts for 80% of the total weight;

Embodiment 3

[0083] The difference between the environmentally friendly deinking slag and OCC pulp treatment production method disclosed in this embodiment and the first embodiment is that in the step of mixing and concentrating the deinking slag and OCC pulp, the deinking slag and OCC waste paper slurry are mixed for dehydration and concentration, Among them, deinking slag accounts for 30% of the total weight, and OCC waste paper pulp accounts for 70% of the total weight;

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PUM

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Abstract

The invention relates to an environment-friendly deinking sludge and OCC pulp treatment production method which comprises the following steps of carrying out deinking sludge collection, deinking sludge and flocculating agent mixed reaction, deinking sludge concentration and dehydration pretreatment, screw press pressing, deinking sludge dilution, deinking sludge storage, pipe transportation and deinking sludge and OCC pulp mixed multi-disk concentration, wherein the deinking sludge accounts for 20-30% of total weight and the OCC waste paper pulp accounts for 70-80% of total weight; carrying out mixed pulp screw pressing and heat dispersion treatment; entering a heat dispersion host for heat dispersion treatment through a shredding screw, a conveying screw and a heating screw; and carrying out pulp storage, thickening, pulp preparation and paper machine papermaking. The various processing steps are closed and harmless treatment, so that the problem of complete environmental protection control of the deinking sludge of a paper-making factory is solved; the environmental protection control cost of the deinking sludge is reduced; the papermaking production cost is reduced; and the economical benefits are significant.

Description

technical field [0001] The invention relates to the technical field of deinking slag and OCC pulp treatment, in particular to an environmentally friendly deinking slag and OCC pulp treatment 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 pa...

Claims

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Application Information

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IPC IPC(8): D21C5/02D21C11/10
CPCD21C5/025D21C11/10Y02W30/64
Inventor 王贵敏陈光军
Owner LIANSHENG PAPER IND LONGHAI
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