CN102527151A - Preparation process of high-temperature fine flue dust filtering material - Google Patents
Preparation process of high-temperature fine flue dust filtering material Download PDFInfo
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- CN102527151A CN102527151A CN2011104359147A CN201110435914A CN102527151A CN 102527151 A CN102527151 A CN 102527151A CN 2011104359147 A CN2011104359147 A CN 2011104359147A CN 201110435914 A CN201110435914 A CN 201110435914A CN 102527151 A CN102527151 A CN 102527151A
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- high temperature
- smoke dust
- dust material
- filtrating smoke
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Abstract
The invention relates to a preparation process of high-temperature fine flue dust filtering material, which belongs to the technical field of novel high-temperature fine flue dust filtering materials. The preparation technique comprises the following steps: glass continuous filament yarn and polytetrafluoroethylene (PTFE) fiber are blended to be made into blended yarn, the blended yarn is treated with textile processing into composite blended base fabric with GF (glass fiber)/PTFE twill two-layered organization structure, and then the base fabric is treated with the chemical surface treatment process to be made into high-temperature fine flue dust filtering material. For the high-temperature fine flue dust filtering material, the warp direction tensile breaking strength is greater than or equal to 2400N/25mm, the weft direction tensile breaking strength is greater than or equal to 2200N/25mm, and the folding number reaches more than 170,000 times. For the high-temperature fine flue dust filtering material, the dust filtering efficiency can reach 100% for the dust with the particle size less than 5mum, the dust filtering efficiency can reach 99.997% for the dust of particle size less than 2.5mum, and the service life is longer than three years.
Description
Technical field
The present invention relates to the preparation technology of the fine filtrating smoke dust material of a kind of high temperature, belong to new type high temperature filtrating smoke dust material technology field.
Background technology
It is the important content that industrial fumes filter that high-temperature smoke filters, and along with various countries constantly strengthen environmental protection consciousness, high temperature resistant, efficient, long-life novel filtering material R&D intensity strengthens.Existing flue dust bag type filtering material mainly is the main body with the fabric filtering material, usually, because the organic fiber heat resistance is poor, is difficult on high-temperature-resistant filtering material, use; And the inorfil resistance to elevated temperatures is often better, and like glass fibre, it is not only high temperature resistant, and has the intensity height; Low-shrinkage, high-dimensional stability, corrosion-resistant, deashing property waits excellent properties well; And its big suitability for industrialized production, material source is sufficient, and cost performance is high, so be used widely in the high-temperature-resistant filtering material field.
But,, therefore adopt glass fibre and other fiber composite to be processed into compound filtering material usually, to remedy the defective of the wear-resisting folding quality difference of glass filter material because not wear-resisting, the not folding of glass fibre causes its service life not high.
Do not possess the surface filtration function for the glass filter material; Improved way is to adopt glass filtering material base cloth and PTFE microporous membrane complex method; Adopt the method that improves PTFE emulsion content in the surface treatment liquid simultaneously, in the hope of raising base cloth and PTFE microporous membrane adhesion strength, but because of reasons such as processing technology routines; Effect is bad, and product quality is relatively poor.
Summary of the invention
To the technical problem that exists in the prior art, the invention provides the preparation technology of all good fine filtrating smoke dust materials of high temperature of a kind of wear-resisting, folding and resistance to elevated temperatures.
In order to realize the foregoing invention purpose, the technical scheme of employing is following:
The preparation technology of the fine filtrating smoke dust material of high temperature; It is characterized in that; Compound mixed yarn is processed in glass continuous filament yarn and polytetrafluoroethylene fibre blending; Be processed into the compound blending base cloth of GF/PTFE of twill latitude two layer tissue structures through weaving, process the fine filtrating smoke dust material of high temperature through surface chemical treatment process again.
Comparatively perfect is that said glass continuous filament yarn is the multiply alkali-free glass fibre yarn of filament diameter 5.5～6.2 μ m.
Comparatively perfect is that said polytetrafluoroethylene fibre is the long filament of 400～500D.
Comparatively perfect is that the proportioning of said glass continuous filament yarn and polytetrafluoroethylene fibre is 70～85: 15～30.
Comparatively perfect is that the grammes per square metre of the compound blending base cloth of said GF/PTFE is 350～850g/m
2
Comparatively perfect is that said surface chemical treatment process is that the compound blending base cloth of GF/PTFE is soaked in maceration extract, carries out chemical surface treatment through the upright convolution hot air circulation firing equipment that crouches again.
Further, the component of said maceration extract is: ptfe emulsion 6～10%, graphite 1～3%, silicone oil 4～10%, water and oil repellent agent 1～5%, surplus are water.
Comparatively perfect is, after the compound blending base cloth of the GF/PTFE chemical surface treatment, is laminated with the PTFE microporous membrane again, processes the fine filtrating smoke dust material of high temperature.
Further, said PTFE microporous membrane aperture is 0.2～1.5 μ m, and thickness is 8～30 μ m, and porosity is 80～97%.
Further, the Air permenbility of the fine filtrating smoke dust material of the high temperature of preparation is 50～90dm
3/ m
2S.
The preparation technology of the fine filtrating smoke dust material of high temperature of the present invention's preparation is simple, practical.
Simultaneously, the fine filtrating smoke dust material of high temperature warp direction stretching fracture strength >=2400N/25mm, broadwise tensile break strength >=2200N/25mm, folding number reach more than 170,000 times.Dust efficiency of dust collection for particle diameter＜5um reaches 100%, reaches 99.997% for the dust efficiency of dust collection of particle diameter＜2.5um, and service life is more than 3 years.
Description of drawings
For the ease of it will be appreciated by those skilled in the art that the present invention is further described below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of compound mixed yarn.
Fig. 2 is the structural representation of the fine filtrating smoke dust material of high temperature for preparing of the present invention.
Fig. 3 is the sectional structure sketch map of the fine filtrating smoke dust material of high temperature for preparing of the present invention.
The specific embodiment
Glass continuous filament yarn (GF) 6 and polytetrafluoroethylene fibre (PTFE) 5 blending are processed compound mixed yarn, see also Fig. 1, compound mixed yarn folding quality is good, textile performance is superior.
The multiply alkali-free glass fibre yarn of preferred filament diameter 5.5～6.2 μ m of glass continuous filament yarn, polytetrafluoroethylene fibre is preferably the long filament of 400～500D, and glass continuous filament yarn and polytetrafluoroethylene fibre both can be made by oneself, also can buy.
In the compound blending operation, the proportioning of glass continuous filament yarn and polytetrafluoroethylene fibre is 70～85: 15～30 (weight ratios).
The compound mixed yarn of GF/PTFE is processed into the compound blending base cloth of GF/PTFE of twill latitude two layer tissue structures through weaving loom, and the compound blending base cloth of GF/PTFE grammes per square metre is 350～850g/m
2
It is woven to adopt compound mixed yarn work warp, weft yarn to carry out, and selects two layers of fabric structure of twill latitude for use, makes the base cloth institutional framework tight, little through the weft yarn relative shift, reaches base cloth than high-flatness, to satisfy preparation technology's requirement.
The compound blending base cloth of GF/PTFE flatness is high, flexibility is good, intensity is high.Simultaneously, because the existence of PTFE fiber is arranged in the yarn, reduced the phase mutual friction between the glass fibre, thereby significantly improved the wear-resisting folding quality of yarn, folding number reaches more than 170,000 times.
Again with the compound blending base cloth process of GF/PTFE chemical surface treatment; Surface chemical treatment process; At first base cloth is soaked in maceration extract, the component of maceration extract is: ptfe emulsion 6～10%, graphite 1～3%, silicone oil 4～10%, water and oil repellent agent 1～5%, surplus are water.
Then, carry out chemical surface treatment through the upright convolution hot air circulation firing equipment that crouches again, the upright convolution hot air circulation firing equipment that crouches is my company's independent research, treatment facility (patent No. ZL200910184821.4) with independent intellectual property right.
Through chemical surface treatment, further improved wear-resisting, the folding quality of base cloth, make on the base cloth finish level comparatively even, cloth matter is soft.Improved sticking clothes property simultaneously, so that improve base cloth and polytetrafluoroethylmicroporous microporous membrane bond properties.
Base cloth through behind the surface chemical treatment process can directly apply in the high-temperature smoke filter plant, for example sack cleaner.
The compound blending base cloth of GF/PTFE that will pass through after the chemical surface treatment is laminated with the PTFE microporous membrane again,
Process the fine filtrating smoke dust material of the high temperature that possesses the surface filtration function, be applicable to the high-temperature smoke dedusting that particle diameter is thinner, cost performance is higher.
PTFE microporous membrane preferred product aperture is 0.2～1.5 μ m, and thickness is 8～30 μ m, and porosity is 80～97%.
See also Fig. 2 and 3,3 weavings are twill latitude two layer tissue structures to warp thread 2 with weft yarn, and PTFE microporous membrane 1 places base cloth one side, and the coating 4 that chemical surface treatment forms is evenly distributed in base cloth.
Through the fine filtrating smoke dust material of the prepared high temperature of above-mentioned process, Air permenbility is 50～90dm
3/ m
2S, warp direction stretching fracture strength>=2400N/25mm, broadwise tensile break strength>=2200N/25mm, folding number reach more than 170,000 times.Dust efficiency of dust collection for particle diameter＜5um reaches 100%, reaches 99.997% for the dust efficiency of dust collection of particle diameter＜2.5um, and service life is more than 3 years.
Simultaneously, the fine filtrating smoke dust material of high temperature combine that glass fiber strength height, dimensional stability are good, the advantage of easy-to-clean ash and polytetrafluoroethylene fibre folding, advantage that anti-wear performance is good.
Above content only is to give an example and explanation to what structure of the present invention was done; Under the technical staff in present technique field described specific embodiment is made various modifications or replenish or adopt similar mode to substitute; Only otherwise depart from the structure of invention or surmount the defined scope of these claims, all should belong to protection scope of the present invention.
Claims (10)
1. the preparation technology of the fine filtrating smoke dust material of high temperature; It is characterized in that; Compound mixed yarn is processed in glass continuous filament yarn and polytetrafluoroethylene fibre blending; Be processed into the compound blending base cloth of GF/PTFE of twill latitude two layer tissue structures through weaving, process the fine filtrating smoke dust material of high temperature through surface chemical treatment process again.
2. the preparation technology of the fine filtrating smoke dust material of high temperature according to claim 1 is characterized in that, said glass continuous filament yarn is the multiply alkali-free glass fibre yarn of filament diameter 5.5～6.2 μ m.
3. the preparation technology of the fine filtrating smoke dust material of high temperature according to claim 1 is characterized in that said polytetrafluoroethylene fibre is the long filament of 400～500D.
4. the preparation technology of the fine filtrating smoke dust material of high temperature according to claim 1 is characterized in that the proportioning of said glass continuous filament yarn and polytetrafluoroethylene fibre is 70～85: 15～30.
5. the preparation technology of the fine filtrating smoke dust material of high temperature according to claim 1 is characterized in that the grammes per square metre of the compound blending base cloth of said GF/PTFE is 350～850g/m
2
6. the preparation technology of the fine filtrating smoke dust material of high temperature according to claim 1; It is characterized in that; Said surface chemical treatment process is that the compound blending base cloth of GF/PTFE is soaked in maceration extract, carries out chemical surface treatment through the upright convolution hot air circulation firing equipment that crouches again.
7. the preparation technology of the fine filtrating smoke dust material of high temperature according to claim 6 is characterized in that the component of said maceration extract is: ptfe emulsion 6～10%, graphite 1～3%, silicone oil 4～10%, water and oil repellent agent 1～5%, surplus are water.
8. according to the preparation technology of the fine filtrating smoke dust material of each described high temperature of claim 1～7, it is characterized in that, after the compound blending base cloth of the GF/PTFE chemical surface treatment, be laminated with the PTFE microporous membrane again, process the fine filtrating smoke dust material of high temperature.
9. the preparation technology of the fine filtrating smoke dust material of high temperature according to claim 8 is characterized in that, said PTFE microporous membrane aperture is 0.2～1.5 μ m, and thickness is 8～30 μ m, and porosity is 80～97%.
10. the preparation technology of the fine filtrating smoke dust material of high temperature according to claim 8 is characterized in that the Air permenbility of the fine filtrating smoke dust material of the high temperature of preparation is 50～90dm
3/ m
2S.
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| CN2011104359147A CN102527151A (en) | 2011-12-22 | 2011-12-22 | Preparation process of high-temperature fine flue dust filtering material |
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| CN2011104359147A CN102527151A (en) | 2011-12-22 | 2011-12-22 | Preparation process of high-temperature fine flue dust filtering material |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3669756B2 (en) * | 1996-02-22 | 2005-07-13 | 北越製紙株式会社 | Filter material for air filter and manufacturing method thereof |
| CN1827366A (en) * | 2005-03-04 | 2006-09-06 | 上海过滤器有限公司 | Fiberglass substrate containing polytetrafluoroethylene composite film |
| CN2825066Y (en) * | 2005-10-13 | 2006-10-11 | 中材科技股份有限公司 | Filtering material of fiberglass coated with membrane |
| CN201154259Y (en) * | 2007-12-25 | 2008-11-26 | 上海市凌桥环保设备厂有限公司 | Novel high-efficiency, long life and high temperature resistant filtering material |
| CN101406811A (en) * | 2008-10-27 | 2009-04-15 | 中材科技股份有限公司 | Blended fiberglass overlay film filter material |
| CN201537429U (en) * | 2009-10-14 | 2010-08-04 | 安徽省绩溪县华林玻璃纤维有限公司 | Oil-repellent waterproof high temperature glass fiber filter material |
-
2011
- 2011-12-22 CN CN2011104359147A patent/CN102527151A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3669756B2 (en) * | 1996-02-22 | 2005-07-13 | 北越製紙株式会社 | Filter material for air filter and manufacturing method thereof |
| CN1827366A (en) * | 2005-03-04 | 2006-09-06 | 上海过滤器有限公司 | Fiberglass substrate containing polytetrafluoroethylene composite film |
| CN2825066Y (en) * | 2005-10-13 | 2006-10-11 | 中材科技股份有限公司 | Filtering material of fiberglass coated with membrane |
| CN201154259Y (en) * | 2007-12-25 | 2008-11-26 | 上海市凌桥环保设备厂有限公司 | Novel high-efficiency, long life and high temperature resistant filtering material |
| CN101406811A (en) * | 2008-10-27 | 2009-04-15 | 中材科技股份有限公司 | Blended fiberglass overlay film filter material |
| CN201537429U (en) * | 2009-10-14 | 2010-08-04 | 安徽省绩溪县华林玻璃纤维有限公司 | Oil-repellent waterproof high temperature glass fiber filter material |
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Application publication date: 20120704 |