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A method for dry separation of waste paper-plastic composite wallpaper

A paper-plastic composite and composite wallpaper technology, applied in the separation of raw materials, papermaking, paper recycling, etc., can solve the problems of water pollution, long washing time, waste of water resources, etc., and achieve efficient recycling, low labor intensity, and investment saving cost effect

Active Publication Date: 2019-08-30
安徽省昌泰再生资源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this utility model uses two pulp washing tanks, which requires a large amount of water to complete, which is easy to cause waste of water resources. In order to fully soak, the pulp washing time is also longer
In the prior art, a large amount of water is used in the separation process of paper-plastic composite wallpaper, resulting in waste of water resources and discharge of black water, waste water, and sewage, causing a large amount of water pollution that is harmful to the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A method for dry separation of waste paper-plastic composite wallpaper, comprising the following steps:

[0032] (1) Sorting: The recycled waste paper-plastic composite wallpaper is manually screened and shaken to remove a large amount of dust, and remove waste and sundries such as mud and iron; at the same time, the waste paper-plastic composite wallpaper is divided into two categories: dark color wallpaper and For light-colored wallpapers, place sorted waste paper-plastic composite wallpapers in a ventilated, dry, and clean place in an orderly manner;

[0033] For the identification of color depth: through publicity: g=R*0.299+G*0.587+B*0.114,

[0034] When g≥192, it is light color;

[0035] When g<192, it is dark;

[0036] (2) Crushing: Put the sorted waste paper-plastic composite wallpaper into the crusher for slicing, cutting and crushing. The range of broken wallpaper is 4-8cm×3-10cm;

[0037] (3) Separation:

[0038] (a) The cut and crushed block paper-plasti...

Embodiment 2

[0046] A method for dry separation of waste paper-plastic composite wallpaper, comprising the following steps:

[0047] (1) Sorting: The recycled waste paper-plastic composite wallpaper is manually screened and shaken to remove a large amount of dust, and remove waste and sundries such as mud and iron; at the same time, the waste paper-plastic composite wallpaper is divided into two categories: dark color wallpaper and For light-colored wallpapers, place sorted waste paper-plastic composite wallpapers in a ventilated, dry, and clean place in an orderly manner;

[0048] For the identification of color depth: through publicity: g=R*0.299+G*0.587+B*0.114,

[0049] When g≥192, it is light color;

[0050] When g<192, it is dark;

[0051] (2) Crushing: Put the sorted waste paper-plastic composite wallpaper into the crusher for slicing, cutting and crushing. The range of broken wallpaper is 3-6cm×4-10cm;

[0052] (3) Separation:

[0053] (a) The cut and crushed block paper-plasti...

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PUM

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Abstract

The invention discloses a dry separation method of waste paper-plastic composite wallpaper and relates to the correlated technical field of waste paper recovery. The dry separation method of the wastepaper-plastic composite wallpaper comprises the following steps: (1) sorting the waste paper-plastic composite wallpaper according to the color depth; (2) crushing the waste paper-plastic composite wallpaper by a crushing machine; and (3) performing primary separation, secondary separation and tertiary separation so as to realize thorough separation and efficient recovery. The whole process is completely not in contact with water, subverts the traditional technology and industrial methods, avoids the waste of water resources, and avoids the harm to the environment caused by massive water pollution due to wastewater and sewage discharge, the separation method is simple, the separation equipment is simple in use, the separation process is simple in operation and is not complicated, the investment cost is reduced, and the investment cost for waste paper-plastic product recovery is greatly lowered.

Description

technical field [0001] The invention relates to the related technical field of recycling waste paper products, in particular to a method for dry separation of waste paper-plastic composite wallpaper. Background technique [0002] At present, the paper-plastic composite wallpaper on the market is generally a new type of wallpaper composed of plastics such as PE and PP and paper such as kraft paper and cardboard. In the production of paper-plastic composite wallpaper, the paper-plastic composite usually adopts sizing methods, such as hand brushing, machine coating, spraying, etc., to achieve a tight and long-term combination of plastic and paper. [0003] Wallpaper decoration will produce a lot of waste paper-plastic composite wallpaper in the later stage, and the elimination of waste wallpaper will cause resource consumption and environmental pollution. Therefore, it is necessary to recycle waste paper-plastic composite wallpaper. [0004] In the traditional process, paper-p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21B1/32D21B1/34D21D5/02
CPCD21B1/32D21B1/345D21D5/02Y02W30/64
Inventor 张建春
Owner 安徽省昌泰再生资源有限公司
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