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A kind of processing method of wave filter

A processing method and filter technology, which can be used in heating/cooling fabrics, textiles, papermaking, etc., can solve the problems of low filtration efficiency, poor filtration quality, and high filtration efficiency of a single-layer filter, so as to improve filtration quality and increase contact area effect

Active Publication Date: 2022-03-22
安徽福仕达网带有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Single-layer filter screen has high filtration efficiency, poor filtration quality, short service life, and low contact area (pulp fiber retention); multi-layer filter screen has high filtration quality, slightly low filtration efficiency, and low contact area (pulp fiber retention)

Method used

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  • A kind of processing method of wave filter
  • A kind of processing method of wave filter
  • A kind of processing method of wave filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as Figure 4 and Figure 5 Shown, a kind of processing method of corrugated filter screen comprises the following steps:

[0038] S1. The wave-shaped filter includes surface layer 1 and bottom layer 2. Surface layer 1 adopts 3-shed twill structure, and the bonding of surface layer 1 and bottom layer 2 also adopts 3-shed twill structure. In the twill structure of surface layer 1, every 42 warps Back adjacent 3 are used for binding the warp of surface layer 1 and bottom layer 2, surface layer 1 mid-latitude thread and bottom layer 2 mid-latitude threads can adopt the fiber of different sizes, and the section diameter ratio of surface layer 1 weft thread and bottom layer 2 weft threads is 3: 1;

[0039] S2. The overall weaving of the wave-shaped filter screen adopts 6 sheds, the surface layer 1 of the wave-shaped filter screen is woven with polyester monofilament, and the bottom layer 2 of the wave-shaped filter screen is woven with nylon monofilament; the 6-shed th...

Embodiment 2

[0042] Such as Figure 6 and Figure 7 Shown, a kind of processing method of corrugated filter screen comprises the following steps:

[0043]S1. The wave-shaped filter includes surface layer 1 and bottom layer 2. Surface layer 1 adopts 3-shed twill structure. The bonding of surface layer 1 and bottom layer 2 also adopts 3-shed twill structure. In the twill structure of surface layer 1, every 51 warps Back adjacent 3 are used for binding the warp of surface layer 1 and bottom layer 2, surface layer 1 mid-latitude thread and bottom layer 2 mid-latitude threads can adopt the fiber of different sizes, and the section diameter ratio of surface layer 1 weft thread and bottom layer 2 weft threads is 3: 1;

[0044] S2. The overall weaving of the wave-shaped filter screen adopts 12 sheds, the surface layer 1 of the wave-shaped filter screen is woven with polyester monofilament, and the bottom layer 2 of the wave-shaped filter screen is woven with nylon monofilament; among them, 12 sh...

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Abstract

The present invention relates to the technical field of papermaking filter screens, in particular to a processing method for a wave-shaped filter screen, comprising the following steps: S1. The wave-shaped filter screen includes a surface layer and a bottom layer, the surface layer adopts a 3-shed twill structure, and the surface layer and the bottom layer The binding also adopts 3-shed twill structure, and every 42 or 51 warps in the twill structure of the surface layer are followed by 3 adjacent warps for binding the surface layer and the bottom layer; the overall weaving of S2 and wave-shaped filter screen adopts 6-shed Or 12 sheds; S3, the surface layer forms a continuous wavy arch after low heat action, and the difference in the number of meridian loops in the surface layer directly affects the height and length of the final wave structure; the bottom layer will cling to the pulper surface through low heat shrinkage, Realize the working basis of the filter screen; the invention separates and binds the surface layer and the bottom layer independently, and the surface layer forms a continuous wave arch, which increases the contact area between the filter screen and the slurry and improves the filtration quality; the bottom layer adopts wear-resistant Nylon monofilament shrinks and fastens on the surface of the pulp machine, realizing the working basis of the filter.

Description

technical field [0001] The invention relates to the field of paper-making filter screens, in particular to a processing method for wave-shaped filter screens. Background technique [0002] Pulp filtration is an indispensable process in the current papermaking process. The quality of the papermaking filter screen directly affects the quality of the output paper and the cost of the paper. The quality of the paper produced by the filter screen woven with fine silk threads is good. [0003] But existing filter screen adopts planar structure, single-layer or multi-layer mode is fixed on the pulping machine board. Single-layer filter screen has high filtration efficiency, poor filtration quality, short service life, and low contact area (pulp fiber retention); multi-layer filter screen has high filtration quality, slightly low filtration efficiency, and low contact area (pulp fiber retention) . The existing filter screens are all directly attached to the working surface of the f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21F1/00D03D11/00D03D13/00D06C7/00
CPCD21F1/0036D03D11/00D03D13/002D06C7/00D10B2331/04D10B2331/02
Inventor 刘可可
Owner 安徽福仕达网带有限公司
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