Filtering and regeneration system for waste non-woven fabric

A non-woven fabric, filtration and regeneration technology, applied in textiles and papermaking, removal of solid waste, melting of filament raw materials, etc. Affecting the molecular weight distribution of polymers and other problems, achieving the effect of energy saving and environmental protection production process, reducing labor and material consumption, and good economic benefits

Active Publication Date: 2018-07-24
LIMING VOCATIONAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, in the aforementioned prior art, waste polyester or waste polypropylene is used for cleaning, recrystallization and regeneration, or a homogenization kettle is used to adjust the viscosity of waste polyester to form recycled materials, and to prepare polyester fiber or polypropylene fiber, but waste polyester or waste Polypropylene contains or adheres to a large number of pollutants that are difficult to clean and remove, such as stains and even impurities. On the one hand, these pollutants affect the molecular weight and distribution of the polymer, thereby affecting the viscosity and stability of the melt. , will cause the elongation at break, breaking strength, etc. of the fiber product after spinning, but the existing technology cannot solve the problem of effective filtration of impurities or pollutants in waste polyester and waste polypropylene materials, let alone how to filter them in new Technical problems of high content waste polyester or waste polypropylene regenerated materials

Method used

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  • Filtering and regeneration system for waste non-woven fabric
  • Filtering and regeneration system for waste non-woven fabric
  • Filtering and regeneration system for waste non-woven fabric

Examples

Experimental program
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Embodiment 1

[0033] as attached figure 1 As shown, the waste filter system 1 includes a filter assembly and a material delivery assembly. The filter assembly includes a housing 3, and a top cover 31 with a feed port is arranged on the housing 3. In the housing 3 3 is provided with a feeding assembly, and at least one section of primary filter section 32 filled with coarse filter sand 101 and at least one section of fine filter section 33 filled with fine filter sand 102 are sequentially arranged in the inner cavity of the housing 3 . But in this embodiment, a section of preliminary filter section 32 and a section of fine filter section 33 are preferably set in the inner cavity of the housing 3, wherein the volume of the preliminary filter section 32 is preferably 0.13-0.15m 3 , the volume of fine filter section 33 is preferably 0.09-0.10m 3 .

[0034] as attached figure 1 , figure 2 As shown, a cover plate is provided between the top cover 31 and the primary filter section 32, and the...

Embodiment 2

[0045] In the prior art, the components of non-woven fabrics are PP / PE or PET / PE, in which PP or PET is used as the core material, PE is the skin material, and PE is melted to produce bonding points through a heat-sealing process. . In this embodiment, recycled waste PP / PE nonwoven fabrics or scraps generated during the production process of PP / PE nonwoven fabrics are used as raw materials, and the recycled melt of waste materials is obtained through the steps of regeneration treatment.

[0046] as attached figure 1 , Figure 6 and Figure 7 As shown, in this embodiment, waste non-woven fabrics are regenerated to obtain a waste regeneration melt, including the following steps:

[0047] 1) Crushing step: In this step, the waste nonwoven fabric crushing system 21 is a crusher, and the waste nonwoven fabric is broken into sheet-like fabrics with a size not larger than 30mm×30mm by using the crusher.

[0048] 2) The step of pretreatment: adopt the hot cyclone separator 22 to s...

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Abstract

The invention relates to a filtering and regeneration system for a waste non-woven fabric. The system comprises a filtering assembly and a material conveying assembly. The filtering assembly comprisesa housing, a top cover is arranged on the housing, a primary filtering segment and a fine filtering segment are arranged in an inner cavity of the housing in sequence, a conical panel with first communication holes is disposed between the top cover and the primary filtering segment, a clapboard is disposed between the primary filtering segment and the fine filtering segment and made by stacking apartition net and a corrugated partition plate from top to bottom, second communication holes are formed in the corrugated partition plate, and partition net holes are formed in the partition net. Asealing baseplate made by stacking a baseplate body and a bottom net with third communication holes is arranged at the bottom, and the third communication holes are formed by connecting conical guideholes with through holes. The material conveying assembly includes a material conveying bin, a material conveying screw rod and a driving motor. An upper end opening of the material conveying bin is connected to a lower end opening of the housing, the bottom of the material conveying bin is provided with a discharge opening, an inner cavity of the material conveying bin is provided with the horizontally placed material conveying screw rod, and one end of the material conveying screw rod is connected with the driving motor.

Description

technical field [0001] The invention relates to the technical field of chemical fiber preparation, in particular to a filter regeneration system for waste non-woven fabrics. Background technique [0002] As we all know, my country is a big country in the textile industry, and it is also a big country in textile consumption. Every year, my country's waste textiles are as high as tens of millions of tons. Among them, polyester, also known as polyester fiber (polyester, PET for short), polyester (PET) is a stable polymer produced by polymerization of terephthalic acid and ethylene glycol, its molecular structure is highly symmetrical, and it has a certain crystallographic orientation. Therefore, polyester fabrics occupy a considerable proportion in waste textiles, but The existing polyester waste materials are almost all buried and incinerated as garbage, causing damage to the environment, and the reuse rate is extremely low. Among them, PP plastic (polypropylene) is another ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D1/00D01D1/10D01D1/06D01D1/04B09B3/00B09B5/00
CPCB09B3/00B09B5/00D01D1/00D01D1/04D01D1/065D01D1/106
Inventor 曾飞虎张青海
Owner LIMING VOCATIONAL UNIV
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