CN201304296Y

CN201304296Y - High-temperature resistant composite fiber needled filter felt with nano-particle compact layer on surface

Info

Publication number: CN201304296Y
Application number: CNU200820152738XU
Authority: CN
Inventors: 刘书平
Original assignee: SHANGHAI BG INDUSTRIAL FABRIC Co Ltd
Current assignee: Fushun Boge Chemical Techonlogy Co., Ltd.
Priority date: 2008-09-04
Filing date: 2008-09-04
Publication date: 2009-09-09
Anticipated expiration: 2018-09-04

Abstract

The utility model relates to a high-temperature resistant composite fiber needled filter felt with a nano-particle compact layer on the surface. A layer of synthetic fabric layer is respectively compounded on the upper and the lower surfaces of a piece of glassfiber woven fabric through a needling machine, and a layer of nano-particle compact layer is further coated on the synthetic fabric layer on the upper surface layer. The utility model has the advantages that the microcellular structure is formed on the surface, the filtration accuracy is high, and the disadvantages of lower air permeability of the membrane-laminated filter material is overcome; the high-temperature resistant composite fiber needled filter felt has the characteristics of water resistance, grease proofness, open-flame prevention and condensation resistance; the surface of the product is smooth, thereby being favorable for ash removal; the filtration velocity is remarkably improved, the volume of the dust catcher is reduced, and the energy is saved; the wear resistance, the bending resistance and the stripping strength are remarkably enhanced; and the chemical resistance is increased.

Description

The surface has the high temperature resistant composite fibre needled filtering felt of nano particle compacted zone

Technical field

The utility model relates to a kind of needled filtering felt, and particularly a kind of surface has the high temperature resistant composite fibre needled filtering felt of nano particle compacted zone.

Background technology

At present, in the cement plant, the filter felt that uses of flue gas such as steel plant, blast furnace gas factory, the hot stove silica flour in ore deposit or aluminium powder and dust, the filtering accuracy of product is poor.

The utility model content

Technical problem of the present utility model is that the surface that will provide a kind of filtering accuracy height, surface to have waterproof, grease proofing, anti-naked light has the high temperature resistant composite fibre needled filtering felt of nano particle compacted zone.

In order to solve above technical problem, the utility model provides a kind of surface to have the high temperature resistant composite fibre needled filtering felt of nano particle compacted zone, upper and lower surface at the woven cloth of glass fibre, with the compound one deck mixed fiber layer of needing machine, on the mixed fiber layer of upper epidermis, be coated with one deck nano particle compacted zone again.

Described nano particle compacted zone is the mixture that polytetrafluoroethylene (PTFE) concentrates dispersion emulsion and thickener, and this mixture is that the concentrated dispersion emulsion of polytetrafluoroethylene (PTFE) mixes by weight proportion with thickener, and mixed proportion is 97:3.

Described mixed fiber layer is that aramid fiber mixes by weight proportion with glass fibre, and mixed proportion is 75:25.

Superior effect of the present utility model is:

1) surface has microcellular structure, and the filtering accuracy height has improved the ventilative less shortcoming of coated filter material;

2) have the advantages that waterproof, grease proofing, anti-naked light, resistive connection are revealed;

3) product surface is smooth, more helps deashing;

4) filtration velocity significantly improves, and reduces the volume of deduster, saves the energy;

5) Nai Mo, fold resistance and peel strength have raising significantly;

6) increased chemical resistance.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

The number in the figure explanation

1-mixed fiber layer; The woven cloth of 2-glass fibre;

3-nano particle compacted zone.

The specific embodiment

See also shown in the accompanying drawing, the utility model will be further described.

As shown in Figure 1, the utility model provides a kind of surface to have the high temperature resistant composite fibre needled filtering felt of nano particle compacted zone, upper and lower surface at the woven cloth 2 of glass fibre, with the compound one deck mixed fiber layer 1 of needing machine, on the mixed fiber layer 1 of upper epidermis, be coated with one deck nano particle compacted zone 3 again.

Described nano particle compacted zone 3 is mixtures that polytetrafluoroethylene (PTFE) concentrates dispersion emulsion and thickener, and this mixture is that the concentrated dispersion emulsion of polytetrafluoroethylene (PTFE) mixes by weight proportion with thickener, and mixed proportion is 97:3.

Described mixed fiber layer 1 is that aramid fiber mixes by weight proportion with glass fibre, and mixed proportion is 75:25.

Drop in the blast furnace gas the utility model on probation, through experiment confirm, continuous operation temperature of the present utility model is 240 ℃, moment, operating temperature was 260 ℃, warp-wise brute force 〉=1800N/5 * 20cm, broadwise brute force 〉=1800N/5 * 20cm, warp-wise elongation at break≤10%, broadwise elongation at break≤10%, air permeability are 8m ³/ m ².min.

Claims

1, a kind of surface has the high temperature resistant composite fibre needled filtering felt of nano particle compacted zone, it is characterized in that:

On the upper and lower surface of the woven cloth of glass fibre,, on the mixed fiber layer of upper epidermis, be coated with one deck nano particle compacted zone again with the compound one deck mixed fiber layer of needing machine.