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Multifilament multi-layer two-piece needle non-woven filtering cloth

A multi-layer composite and multi-fiber technology, applied in the direction of filtration separation, chemical instruments and methods, separation methods, etc., can solve the problems of insufficient strength, low filtration precision, short service life, etc., to prevent the growth of bacteria and high filtration precision , long service life effect

Inactive Publication Date: 2008-09-24
于志华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the woven filter cloth composed of multifilament or short fiber has the following problems during use: 1. Low porosity; 2. Bacteria are easy to breed; 3. The service life is short and the regeneration ability is poor
Ordinary single-fiber needle-punched nonwoven filter cloth has problems such as insufficient strength, slow filtration speed, and low filtration precision.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Multifilament multi-layer two-piece needle non-woven filtering cloth
  • Multifilament multi-layer two-piece needle non-woven filtering cloth
  • Multifilament multi-layer two-piece needle non-woven filtering cloth

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Embodiment Construction

[0016] In order to make the purpose, technical solutions and advantages of the present invention clearer, the implementation of the present invention will be further described in detail below in conjunction with the accompanying drawings:

[0017] This embodiment provides a multi-fiber multi-layer composite needle-punched nonwoven filter cloth.

[0018] see figure 1 , figure 2 , is the structure of the surface structure and the internal structure. According to the accuracy of the filter material and the filter environment, the specification is usually 1.5-3.0 (unit: DENIER) fiber multi-layer composite. The surface structure uses finer denier fibers and is heated and calendered. Treatment is carried out to make the surface of the filter cloth smooth, with large porosity and small pores. During the solid-liquid separation process, the material particles are not easy to enter the interior of the filter cloth and are not easy to be blocked; the difference in the specifications i...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to fiber multilayer compound needle non-woven filter cloth which comprises a surface weave and a back weave, the surface weave is fine denier fiber, the back weave is heavy denier fiber, and the surface and the back weaves are formed by the multilayer needling according to requirements; the filter cloth is made by a double-crank shaft arc-shaped needling machine. During the operation process, the clogging is not easy to occur, thereby the filter cloth can rapidly realize the purpose of solid-liquid separation.

Description

technical field [0001] The invention relates to a multi-fiber multi-layer composite needle-punched non-woven filter cloth for realizing solid-liquid separation, in particular to a multi-fiber multi-layer composite needle-punched non-woven filter cloth for realizing solid-liquid separation. Background technique [0002] At present, most of the filter cloths in the domestic market are composed of multifilament and short fibers, and the weaves are mostly plain weave, twill, satin weave or their changed weave woven filter cloths and ordinary needle-punched nonwoven filter cloths of single fiber. [0003] Filtration is a unit operation that uses filter media to separate solids and liquids. Filter cloth is one of the filter media, which belongs to surface filtration. During use, the surface of the filter cloth first intercepts suspended particles, and the thickness gradually increases. The thick filter cake continues to trap particles, thereby achieving solid-liquid separation. ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/14B32B5/26
Inventor 于志华
Owner 于志华