Method for manufacturing plates from waste fibers

A technology of waste fibers and boards, which is applied in the field of waste materials manufacturing boards, can solve the problems of high raw material requirements, high recycling costs, and increased costs, and achieve the effect of wide fiber range, small raw material requirements, and improved contact effect

Active Publication Date: 2014-06-25
福建鑫华股份有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this process uses the traditional carding and laying method to form a web, which has high requirements for raw materials, and it needs to go through multiple layers of web laying to achieve the required product thickness. In addition, this process uses cleaning to clean the filter bag. The sewage produced by dust removal and cleaning needs to be treated, and the recycling cost is relatively high
[0004] Chinese Invention Patent Application Publication CN1054026A discloses a chemical fiber board and its manufacturing method and equipment, through the steps of opening, carding, webbing, gluing, dehydration, stacking, rolling and other steps to realize the recycling of waste chemical fiber Utilization, although the air-laid process is used in the superposition step, the product needs to be combined with carding, glue invasion and other processes to obtain the product. The process is more complicated and increases the cost of recycling

Method used

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  • Method for manufacturing plates from waste fibers
  • Method for manufacturing plates from waste fibers
  • Method for manufacturing plates from waste fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Example 1: According to the above steps, the waste filter bags are recycled, followed by steel ring removal, drying, pre-opening, pre-dust removal, opening, dust removal, fine opening, air-laid, roll pressing, and multi-stage pressing into a board , Trimming and packing. In the multi-stage web forming step, the amount of low-melting fiber mixed is 5wt% of the fiber obtained after opening and dust removal, and the amount of rubber powder sprayed is 10wt% of the total weight of the fiber web. In the step of pressing into a plate, the time of the fiber mesh in the multi-polar plate pressing box is 12 minutes, and it is pressed by four upper pressing plates from the inlet to the outlet, and the density is 650kg / m 3 Above, the board of predetermined thickness and strength.

Embodiment 2

[0048] Example 2: The difference between this example and Example 1 is that in the multi-stage web forming step, the amount of low-melting fiber mixed is 10wt% of the fiber obtained after opening and dust removal, and the amount of sprayed rubber powder is the total weight of the fiber web In the step of multi-stage pressing, the time of the fiber mesh in the multi-polar plate press box is 12 minutes, and the four upper press plates are pressed from the inlet to the outlet, and the density is 650kg / m 3 Above, the predetermined thickness and strength of the board.

Embodiment 3

[0049] Example 3: The difference between this example and Example 1 is that in the multi-stage web forming step, the amount of low-melting fiber mixed is 5wt% of the fiber obtained after opening and dust removal, and the amount of sprayed rubber powder is the total weight of the fiber web In the step of multi-stage pressing, the time of the fiber mesh in the multi-polar plate press box is 10 minutes, and the four upper press plates are pressed from the inlet to the outlet, and the density is 650kg / m 3 Above, the board of predetermined thickness and strength.

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Abstract

The invention provides a method for manufacturing plates from waste fibers of waste filtering bags, waste textiles and the like. The method comprises the steps of drying, loosening, dedusting, air laying, rolling, multi-stage compressing to form plates, trimming and packaging. An air laying technology is selected, so that fibers are arranged in a fiber net without directivity, and the horizontal and longitudinal ratio of the plates is approximate to 1:1, and the method is suitable for various fibers with different lengths and wide varieties, requires less on raw materials, and is suitable for a wide range of fibers; compared with a scheme that the required thickness of plates is reached by laying for multiple layers in a traditional carding method, the air-laying can obtain the required thickness of plates by directly controlling the output speed.

Description

Technical field [0001] The invention relates to a method for manufacturing a board from waste articles, in particular to a method for manufacturing a board from waste fibers such as waste filter bags and waste textiles. Background technique [0002] At present, the main methods for disposing of waste fiber such as waste filter bags or waste textiles are incineration and landfill, which will cause air and land pollution. Recycling and reuse of waste filter bags can not only avoid environmental pollution problems caused by them, but also improve resource efficiency. Utilization rate. Although there are many technical and cost problems, the formation of waste filter bag recycling system will still become an irreversible trend, and there are also some domestic documents aimed at recycling waste filter bags. [0003] The Chinese Invention Patent Application Publication CN103264040A discloses a process for using waste filter bags to make plates. The waste filter bags are recycled, sorte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00
Inventor 粘伟诚吴晓青卢国权何碧明粘平如王山英苗贵菊
Owner 福建鑫华股份有限公司
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