CN203017874U - Polytetrafluoroethylene membrane filter material - Google Patents
Polytetrafluoroethylene membrane filter material Download PDFInfo
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- CN203017874U CN203017874U CN 201320006762 CN201320006762U CN203017874U CN 203017874 U CN203017874 U CN 203017874U CN 201320006762 CN201320006762 CN 201320006762 CN 201320006762 U CN201320006762 U CN 201320006762U CN 203017874 U CN203017874 U CN 203017874U
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- polytetrafluoroethylene
- filter material
- furnace
- ptfe
- membrane filter
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Abstract
The utility model provides a polytetrafluoroethylene membrane filter material. The material comprises a polytetrafluoroethylene woven fabric (1), wherein a filoplume layer (2), a dipping treatment layer (3) and a polytetrafluoroethylene microporous membrane (4) are sequentially arranged on one surface of the polytetrafluoroethylene woven fabric (1), and a dipping treatment layer (3) is arranged on the other surface of the polytetrafluoroethylene woven fabric (1). The membrane filter material has the characteristics of good chemical stability, high filter precision, high strength, wear resistance, wide application range and the like, and is widely applied to smoke dust filtering of various industrial furnaces such as a chemical engineering furnace, a steel furnace, a metallurgy furnace, a power generation furnace, a cement furnace, and a waste incineration furnace.
Description
Technical field
The utility model relates to Environmental-protecting dust-removing filtrate field, especially a kind of PTFE membrane filter material.
Background technology
Current, along with urbanization process is accelerated increasing of house refuse, clinical waste and other old and useless article, the burning project of some discarded objects is also increasing, although it is much smaller that the discharge capacity of its flue dust is compared the industries such as Thermal Power Generation Industry, steel industry, cement industry, but the flue dust of incinerator discharging contains the noxious materials such as bioxin, furans, heavy metal, if undemanding control, generation very harmful.And because the garbage disposal of China is not classified, complicated component, so the incinerator operating mode is abominable, corrosion of fume is strong, contains sulfide, nitrogen oxide, hydrogen chloride, bromide etc., and water capacity is very large again, and the performance of filter bag has been proposed very high requirement.
Present filtration for the waste incineration flue dust, the main filtering material that adopts the fibers such as glass fibre, polyphenylene sulfide fibre (PPS), aromatic polyamide fibre (aramid fiber), polyimide fiber (P84) to make, in various degree exist the problems such as filtering material is corroded, filtering accuracy is low, service life is short, can not fully satisfy the requirement of filtrating smoke dust.
The polytetrafluoroethylene (PTFE) material advances to high-end filter material market with outstanding chemical stability, rotproofness, heat resistance, high lubricated not viscosity, good advantages such as anti-aging endurance.The polymer that polytetrafluoroethylene (PTFE) is polymerized by tetrafluoroethylene monomer, density is 2.2g/cm3, water absorption rate is less than 0.01%.The PTFE material is because fluoro-carbochain intermolecular force is extremely low, and stable performance so have surface tension minimum in solid material, does not adhere to any material.But the shortcomings such as common polytetrafluoroethylene (PTFE) filtering material also exists and wear no resistance, powerful low.
The utility model content
The purpose of this utility model is to provide for the deficiencies in the prior art, provide a kind of high temperature resistant, corrosion-resistant, filtering accuracy is high, the PTFE membrane filter material of long service life.
Realize a kind of PTFE membrane filter material of the present utility model, comprise polytetrafluoroethylwoven woven cloth 1, be provided with successively filoplume layer 2, impregnation process layer 3, polytetrafluoroethylmicroporous microporous membrane 4 in weave cotton cloth 1 one side of described polytetrafluoroethylene (PTFE), be provided with impregnation process layer 3 at weave cotton cloth 1 another side of described polytetrafluoroethylene (PTFE).
Described impregnation process layer (3) is polytetrafluoroethylene (PTFE) impregnation process layer.
The brute force of the PTFE membrane filter material that the utility model provides exceeds ordinary filter more than 40%; This filtrate percentage elongation is low, generally below 2%; This filtrate thermal contraction≤2% is better than ordinary filter, good stability of the dimension; This coated filter material has the characteristics such as chemical stability is good, filtering accuracy is high, high strength, wear-resistant, the scope of application is wide, is widely used in the filtrating smoke dust of the various industrial smelting furnaces such as chemical industry, iron and steel, metallurgy, generating, cement, waste incineration.
Description of drawings
Fig. 1 is the utility model PTFE membrane filter material schematic diagram
As shown in the figure, 1 is polytetrafluoroethylwoven woven cloth; 2-filoplume layer; 3-impregnation process layer; 4-polytetrafluoroethylmicroporous microporous membrane
The specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in embodiment is clearly and completely described the utility model for better illustrating.
Embodiment one: as shown in Figure 1, the utility model PTFE membrane filter material comprises polytetrafluoroethylwoven woven cloth 1, be provided with successively filoplume layer 2, impregnation process layer 3, polytetrafluoroethylmicroporous microporous membrane 4 in weave cotton cloth 1 one side of described polytetrafluoroethylene (PTFE), be provided with impregnation process layer 3 at weave cotton cloth 1 another side of described polytetrafluoroethylene (PTFE).
The fabrication processing of the utility model PTFE membrane filter material:
Polytetrafluoroethylene (PTFE) long fibre-warping-weave cotton cloth-pre-treatment (dipping softening agent-volatilization processing-drying and shaping)-sanding-acupuncture is had a shave-impregnation process-oven dry thermocompression forming-overlay film-check warehouse-in.
(1) warping: polytetrafluoroethylene (PTFE) long fine (450den) is made warp beam by warping process, then manufactures the woven fabric of 700g/ ㎡ through loom.
(2) configuration process liquid: soft raising agent joins in 20% ratio in the warm water of 70 ℃, stirs until dispersing and dissolving fully.
(3) pre-treatment: polytetrafluoroethylwoven woven cloth is put into treatment fluid, and dipping temperature is 70 ℃, and dip time is 30min.98 ℃ of volatilization treatment temperatures after dipping, speed 4m/min; 180 ℃ of drying and processing temperature, speed 5m/min.
(4) sanding: the sanding operation is selected 360# sand paper, selects laddering roughing process, and namely first sand roller is selected than the low mesh number sand belt, and the fiber during yarn is shallow as much as possible is pulled out and cut off into ultimate fibre; The sand paper that rear four road sand rollers select the order number progressively to increase progressively is followed successively by 400#, 480#, 520#, 600#; Purpose is to continue the fiber in yarn is pulled out to cut off and what is more important will be pulled out the ultimate fibre that cuts off and is ground to fine hair, guarantees to greatest extent effect uniformity after sanding.
During sanding, wrap angle is larger, and the sanding effect is better, but powerful decline is larger; Otherwise the sanding weak effect, powerful decline is little.Preferred sanding wrap angle is 5.0, reduces powerful loss when guaranteeing the sanding effect.
Generally immobilize after sanding tension force is selected, Tensity size can change fabric sanding degree, is 0.5MPa through preferred sanding tension force.The speed of a motor vehicle can determine quality and the output of sanding effect, can be more slowly for the heavily fabric speed of a motor vehicle, and should step on the juice for flimsy material, preferred speed of service 12m/min. as far as possible
(5) acupuncture is had a shave: the polyfluortetraethylefiber fiber filter material after sanding carries out the acupuncture processing of having a shave, and guarantees flatness and the fineness of filter material surface.Preferred needling density is 470 thorn/c ㎡, and depth of needling is 16mm, and the filtrate after processing has that thickness is moderate, porosity is high, the tiny uniform characteristics in aperture.
(6) impregnation process: the polyfluortetraethylefiber fiber filter material after acupuncture is had a shave carries out the mass-impregnation of fluorine-containing inorganic agent to be processed, and impregnating speed is 5m/min, filter material surface tension force 10N.
The composition of fluorine-containing inorganic agent has: polytetrafluoroethylene (PTFE) 50wt%; Perfluoropropene acid fat 6wt%; Polybenzoate 3wt%; Polyfluorinated ethylene 8wt%; Hexafluoropropene 6wt%; Distilled water surplus.
(7) oven dry thermocompression forming: with high temperature hot pressing typing after the oven dry of the polyfluortetraethylefiber fiber filter material after fluorine-containing inorganic agent mass-impregnation, have good dimensional stability when making filter material surface smooth, smooth.220 ℃ of bake out temperatures, drying rate 4m/min; 320 ℃ of thermocompression forming temperature, thermocompression forming speed 5m/min.
(8) overlay film: polytetrafluoroethylene (PTFE) filtrate and the polytetrafluoroethylmicroporous microporous membrane that will dry after thermal finalization are introduced in thermal composite machine simultaneously, under the hot conditions of 320 ℃, the polytetrafluoroethylmicroporous microporous membrane and the hot pressing of polytetrafluoroethylene (PTFE) filtrate that trail is compound, make PTFE membrane filter material.Laminating machine speed 5/min, overlay film pressure 8MPa when guaranteeing the compound fastness of filtrate and film, avoids the obstruction of membrane pore size.
Through making the overlay film PTFE membrane filter material after rolling, check.
PTFE membrane filter material and the contrast of ordinary filter performance indications:
The utility model beneficial effect is as follows: the brute force of the coated filter material that the utility model provides exceeds ordinary filter more than 40%; This filtrate percentage elongation is low, generally below 2%; This filtrate thermal contraction≤2% is better than ordinary filter, good stability of the dimension; The coated filter material filtering accuracy exceeds 2 of ordinary filter more than grade, PTFE membrane filter material has the characteristics such as chemical stability is good, filtering accuracy is high, high strength, wear-resistant, the scope of application is wide, is widely used in the filtrating smoke dust of the various industrial smelting furnaces such as chemical industry, iron and steel, metallurgy, generating, cement, waste incineration.
Claims (2)
1. PTFE membrane filter material, it is characterized in that: comprise polytetrafluoroethylwoven woven cloth (1), be provided with successively filoplume layer (2), impregnation process layer (3), polytetrafluoroethylmicroporous microporous membrane (4) in the weave cotton cloth one side of (1) of described polytetrafluoroethylene (PTFE), be provided with impregnation process layer (3) at the weave cotton cloth another side of (1) of described polytetrafluoroethylene (PTFE).
2. PTFE membrane filter material according to claim 1, is characterized in that, described impregnation process layer (3) is polytetrafluoroethylene (PTFE) impregnation process layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320006762 CN203017874U (en) | 2013-01-07 | 2013-01-07 | Polytetrafluoroethylene membrane filter material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320006762 CN203017874U (en) | 2013-01-07 | 2013-01-07 | Polytetrafluoroethylene membrane filter material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203017874U true CN203017874U (en) | 2013-06-26 |
Family
ID=48641892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320006762 Expired - Lifetime CN203017874U (en) | 2013-01-07 | 2013-01-07 | Polytetrafluoroethylene membrane filter material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203017874U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106823561A (en) * | 2017-02-27 | 2017-06-13 | 辽宁鸿盛环境技术集团有限公司 | A kind of inorfil is combined woven filtrate and preparation method with organic fiber |
-
2013
- 2013-01-07 CN CN 201320006762 patent/CN203017874U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106823561A (en) * | 2017-02-27 | 2017-06-13 | 辽宁鸿盛环境技术集团有限公司 | A kind of inorfil is combined woven filtrate and preparation method with organic fiber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180112 Address after: 324000 Zhejiang Province, Quzhou City Kecheng District Tower Road No. 8 Patentee after: ZHEJIANG HONGSHENG ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: 115000 Bohai Avenue, Yingkou, Yingkou, Liaoning Patentee before: Liaoning Jinfulong Environmental Protection New Material Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 8, Tashan Road, Kecheng District, Quzhou, Zhejiang Patentee after: ZHEJIANG HONGSHENG ENVIROTECH GROUP Co.,Ltd. Address before: No. 8, Tashan Road, Kecheng District, Quzhou, Zhejiang Patentee before: ZHEJIANG HONGSHENG ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 8, Tashan Road, Kecheng District, Quzhou, Zhejiang Patentee after: Zhejiang Hongsheng New Material Technology Group Co.,Ltd. Address before: No. 8, Tashan Road, Kecheng District, Quzhou, Zhejiang Patentee before: ZHEJIANG HONGSHENG ENVIROTECH GROUP Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130626 |