CN101462018A - Pure polyfluortetraethylene gradient overlay film filter material with high intensity - Google Patents
Pure polyfluortetraethylene gradient overlay film filter material with high intensity Download PDFInfo
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- CN101462018A CN101462018A CNA2007101727884A CN200710172788A CN101462018A CN 101462018 A CN101462018 A CN 101462018A CN A2007101727884 A CNA2007101727884 A CN A2007101727884A CN 200710172788 A CN200710172788 A CN 200710172788A CN 101462018 A CN101462018 A CN 101462018A
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- polytetrafluoroethylene
- base cloth
- filter material
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- fiber layer
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Abstract
The invention relates to a high-strength pure polytetrafluoroethylene gradient coating filter material, which comprises base cloth, and is characterized in that the base cloth is a polytetrafluoroethylene base cloth; a polytetrafluoroethylene coarse fiber layer and a polytetrafluoroethylene superfine fiber layer are pricked on the polytetrafluoroethylene base cloth; and a polytetrafluoroethylene film is coated on the polytetrafluoroethylene superfine fiber layer. The high-strength pure polytetrafluoroethylene gradient coating filter material has the characteristics of high and low temperature resistance, high acid and alkaline resistance, high humidity resistance, good chemical stability, high filtration efficiency, quick filtration speed, long service life and the like, can be used in various bag-type dusters for flue gas purification, dust removal, dust treatment and material recovery, and has wide application scope.
Description
Technical field:
The present invention relates to a kind of filtering material, particularly relate to a kind of pure polyfluortetraethylegradient gradient overlay film filter material with high intensity.
Background technology:
The present filtering material that uses, the normal easy moisture absorption, the dust stratification of occurring in filter process, both improved the deashing frequency, operation energy consumption is risen significantly, accelerate the wearing and tearing of filtering material again, shortened the service life of filtering material greatly, and, existing filtering material is poor on high-low temperature resistant, corrosion-resistant and antioxygenic property, goes back facile hydrolysis.
Summary of the invention:
The objective of the invention is to provide a kind of improved pure polyfluortetraethylegradient gradient overlay film filter material with high intensity, it not only can make filtering material realize high-low temperature resistant effectively, anti-high soda acid, anti-high humidity, and chemical stability is good, and, filter efficiency height in actual the use, the rate of filtration is fast, long service life, and power consumption is saved.
Solution of the present invention to achieve the above object is: pure polyfluortetraethylegradient gradient overlay film filter material with high intensity of the present invention has a base cloth, described base cloth is the polytetrafluoroethylene (PTFE) base cloth, on the described polytetrafluoroethylene (PTFE) base cloth successively acupuncture polytetrafluoroethylene (PTFE) crude fibre layer, polytetrafluoroethylsuperfine superfine fiber layer are arranged, be covered with a polytetrafluoroethylene film on the described polytetrafluoroethylsuperfine superfine fiber layer.
Because the present invention has improved existing pure polyfluortetraethylegradient gradient overlay film filter material with high intensity, and adopt by the polytetrafluoroethylene (PTFE) base cloth, polytetrafluoroethylene (PTFE) crude fibre layer, the pure polyfluortetraethylegradient gradient overlay film filter material with high intensity that polytetrafluoroethylsuperfine superfine fiber layer and polytetrafluoroethylene film are combined into one, wherein polytetrafluoroethylene film has microporosity, gas permeability and hydrophobic are given birth to, film surface is smooth, coefficient of friction is extremely low, dust peeling property is good, be difficult for laying dust, make dust in flue gas almost all be collected in the surface of film, and the dust layer that forms is easily fallen clearly, realize surface filtration, dust can not be penetrated into fabric, and dust does not contact with base cloth layer, wearing and tearing have been reduced, reduce the deashing energy consumption, improved service life greatly, the aperture of the micropore of polytetrafluoroethylene film is at 0.2～15 μ m, thickness is at 15～30 μ m, porosity reaches 80～97%, and fastness is 〉=0.03MiPa, can reach 99.9%～99.999% to particle diameter more than or equal to the dust-filtering efficient of 0.5 μ m; The polytetrafluoroethylsuperfine superfine fiber laminar surface is smooth and make not easy damaged of polytetrafluoroethylene film, can play the effect of protection to polytetrafluoroethylene film; Hole was big in the middle of crude fibre made in the polytetrafluoroethylene (PTFE) crude fibre layer, increased Air permenbility, and resistance is little; The polytetrafluoroethylene (PTFE) base cloth is a skeleton, makes through the broadwise fiber to keep intensity, and dimensionally stable, filtering material is played booster action, pure polyfluortetraethylegradient gradient overlay film filter material with high intensity of the present invention has high-low temperature resistant, anti-high soda acid, particularly anti-high-sulfur, also anti-high humidity, chemical stability is splendid, and, filter path and be the ascending gradient profile of gradually opening, therefore, throughput increases, the filter efficiency height, and the rate of filtration is fast, the dust collection capacity height, running resistance is little, and the deashing frequency is low, long service life, operation energy consumption descends significantly, has also reduced maintenance load and spare unit spare expense.
Description of drawings:
Concrete structure of the present invention is provided by following embodiment and accompanying drawing thereof.
Fig. 1 is the structural representation of pure polyfluortetraethylegradient gradient overlay film filter material with high intensity of the present invention.
The specific embodiment:
Below with reference to accompanying drawing pure polyfluortetraethylegradient gradient overlay film filter material with high intensity of the present invention is described in further detail.
With reference to Fig. 1, the pure polyfluortetraethylegradient gradient overlay film filter material with high intensity of this invention is formed by described polytetrafluoroethylene film 4, described polytetrafluoroethylsuperfine superfine fiber layer 3, described polytetrafluoroethylene (PTFE) crude fibre layer 2 and described base cloth 1.
Described base cloth 1 is the polytetrafluoroethylene (PTFE) base cloth, described polytetrafluoroethylene (PTFE) crude fibre layer 2, described polytetrafluoroethylsuperfine superfine fiber layer 3 successively acupuncture on described polytetrafluoroethylene (PTFE) base cloth 1, described polytetrafluoroethylene film 4 is to be laminated with on the upper surface of described polytetrafluoroethylsuperfine superfine fiber layer 3, the aperture of the micropore of described polytetrafluoroethylene film is at 0.2～15 μ m, thickness is at 15～30 μ m, porosity reaches 80～97%, and fastness is 〉=0.03MiPa.
Use pure polyfluortetraethylegradient gradient overlay film filter material with high intensity of the present invention, have anti-peracid Alkali, high-low temperature resistant particularly high temperature resistantly reaches 265 ℃, and the filter efficiency height, and running resistance is low, mistake The filtering velocity degree is big, and economic operating cost is even long service life and also can work under high wet cooling condition etc. Advantage, pure polyfluortetraethylegradient gradient overlay film filter material with high intensity of the present invention can be used for all kinds of pocket types Deduster has very widely in high temperature corrosive fume dedustings such as waste incineration, station boilers Application prospect.
Claims (2)
1, a kind of pure polyfluortetraethylegradient gradient overlay film filter material with high intensity, it comprises a base cloth (1), it is characterized in that described base cloth (1) is the polytetrafluoroethylene (PTFE) base cloth, on the described polytetrafluoroethylene (PTFE) base cloth (1) successively acupuncture polytetrafluoroethylene (PTFE) crude fibre layer (2), polytetrafluoroethylsuperfine superfine fiber layer (3) are arranged, be covered with a polytetrafluoroethylene film (4) on the described polytetrafluoroethylsuperfine superfine fiber layer (3).
2, pure polyfluortetraethylegradient gradient overlay film filter material with high intensity according to claim 1, the aperture of micropore that it is characterized in that described polytetrafluoroethylene film is at 0.2～15 μ m, thickness is at 15～30 μ m, and porosity reaches 80～97%, and fastness is 〉=0.03MiPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710172788A CN101462018B (en) | 2007-12-21 | 2007-12-21 | Pure polyfluortetraethylene gradient overlay film filter material with high intensity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710172788A CN101462018B (en) | 2007-12-21 | 2007-12-21 | Pure polyfluortetraethylene gradient overlay film filter material with high intensity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101462018A true CN101462018A (en) | 2009-06-24 |
| CN101462018B CN101462018B (en) | 2012-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710172788A Active CN101462018B (en) | 2007-12-21 | 2007-12-21 | Pure polyfluortetraethylene gradient overlay film filter material with high intensity |
Country Status (1)
| Country | Link |
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| CN (1) | CN101462018B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102160944A (en) * | 2010-02-20 | 2011-08-24 | 上海金由氟材料有限公司 | Filter material with composite ultrafine chopped fibers on surface |
| CN102538442A (en) * | 2010-12-30 | 2012-07-04 | 北京民海艳科技有限公司 | Environmentally-friendly dust-removing and purifying system of electric arc furnace |
| CN103230708A (en) * | 2013-04-11 | 2013-08-07 | 安吉县盛丰玻璃纤维有限公司 | A filter material for filtering and a manufacturing process thereof |
| CN103638746A (en) * | 2013-12-17 | 2014-03-19 | 佛山市斯乐普特种材料有限公司 | Efficient low-resistance spunbonded nonwoven filter material, production equipment and manufacturing method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06311A (en) * | 1992-06-22 | 1994-01-11 | Japan Gore Tex Inc | Filtering material |
| CN2198964Y (en) * | 1994-05-04 | 1995-05-31 | 上海市凌桥环保设备厂 | Film composite filtering material |
| CN2579500Y (en) * | 2002-11-15 | 2003-10-15 | 虞跃平 | Membrane filter material cloth |
| CN2899906Y (en) * | 2006-05-18 | 2007-05-16 | 上海市凌桥环保设备厂有限公司 | Polytetrafluorethylene cloth bag filter material |
| CN2912761Y (en) * | 2006-05-30 | 2007-06-20 | 上海华成针刺材料有限公司 | Polyester fiber super-thick surface layer polytetrafluoroethylene PTFE coating filter felt |
| CN201135832Y (en) * | 2007-12-21 | 2008-10-22 | 上海市凌桥环保设备厂有限公司 | High intensity tetrafluoroethylene gradient overlay film filter material |
-
2007
- 2007-12-21 CN CN200710172788A patent/CN101462018B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102160944A (en) * | 2010-02-20 | 2011-08-24 | 上海金由氟材料有限公司 | Filter material with composite ultrafine chopped fibers on surface |
| CN102538442A (en) * | 2010-12-30 | 2012-07-04 | 北京民海艳科技有限公司 | Environmentally-friendly dust-removing and purifying system of electric arc furnace |
| CN103230708A (en) * | 2013-04-11 | 2013-08-07 | 安吉县盛丰玻璃纤维有限公司 | A filter material for filtering and a manufacturing process thereof |
| CN103638746A (en) * | 2013-12-17 | 2014-03-19 | 佛山市斯乐普特种材料有限公司 | Efficient low-resistance spunbonded nonwoven filter material, production equipment and manufacturing method thereof |
| CN103638746B (en) * | 2013-12-17 | 2015-06-03 | 佛山市斯乐普特种材料有限公司 | Efficient low-resistance spunbonded nonwoven filter material, production equipment and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101462018B (en) | 2012-09-05 |
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