CN101270546B - Functional topical finishing method for high temperature flue gas filter material - Google Patents
Functional topical finishing method for high temperature flue gas filter material Download PDFInfo
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- CN101270546B CN101270546B CN2008100113589A CN200810011358A CN101270546B CN 101270546 B CN101270546 B CN 101270546B CN 2008100113589 A CN2008100113589 A CN 2008100113589A CN 200810011358 A CN200810011358 A CN 200810011358A CN 101270546 B CN101270546 B CN 101270546B
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Abstract
The invention discloses a functional post treatment method for a high temperature flue gas filter material, in particular to an improvement aiming at the coat treatment of the surface of the filter material so as to improve the thermal stability of the filter material. The existing post treatment method of the filter material is to adopt a polyfluortetraethylene dispersion liquid, a silicone emulsion and fluorinated acrylate to prepare a coat liquid to treat the coat in particular. The coat liquid prepared by the materials has the defects of not good thermal stability and affecting the service life of the filter material after treating the filter material. The coat liquid prepared by the method adopts nanometer or micron-grade powder materials; while the materials have heat absorption functions, thus leading the thermal stability of the filter materials after being coated to be improved to a large extent; besides, the coat liquid can also lead the surface of the filter materials to be smooth and easy to clean dust, and lead the filter materials to have the property of gas phase decoking. The method of the invention is simple and is easy to be implemented.
Description
Technical field
What the present invention announced is a kind of aftertreatment of high-temperature flue gas filtration material method, specifically is the improvement of handling at the coating on filtering material surface, with the heat endurance of raising filtering material and the method for acid resistance.
Background technology
Because of the needs of environmental protection, use the enterprise of industrial smoke filtering material more and more at present.Iron and steel, generating and incinerator etc. are also increasing to the demand of flue filtering material.And these users are also more and more higher to the requirement of filtering material quality.The requirement filtering material should be high temperature resistant, and is corrosion-resistant again.Long service life.The flue filtering material of producing then is difficult to reach user's requirement at present.Show that heat resistance is not good, service life is short.Its reason of censuring: the back finishing technique that is filtering material is not good enough, causes product quality undesirable.In the back arrangement of on producing, adopting, specifically be to be to adopt polytetrafluoroethyldispersion dispersion, silicone oil emulsion and fluorinated acrylate in the preparation of the coating liquid that coating is handled at present to filtering material.After the preparation of coating liquid, filtering material is carried out dip-coating processing.Facts have proved that back arrangement, especially the coating processing method of filtering material are not very desirable at present, cause the various performances of filtering material undesirable.
Summary of the invention
The afterfinish method that the purpose of this invention is to provide a kind of industrial smoke filtering material is to solve the practical problem that existing method exists, the service life of improving filtering material.
The present invention be directed to the problem of the back arrangement coating liquid existence of existing filtering material, propose following scheme.
Adopt nanometer technology composite finishing method, at first preparation contains the coating liquid of nanometer or micron order material.With nanometer grade powder material and polytetrafluoroethyldispersion dispersion, silicone oil emulsion, fluorinated acrylate emulsion, mix by a certain percentage, through fully stirring, it is mixed.Add a certain amount of water again, be mixed with composite finishing liquid, be i.e. coating liquid.Then the filtering material of fiberglass needled mat or chemical fibre felt be impregnated in and carry out post processing in the coating liquid.Make the flue filtering material that the surface has nanometer or micro materials coated film.
1, the preparation of coating liquid
Formula for raw stock
The composition percentage by weight
The polytetrafluoroethyldispersion dispersion 15～30 of 60% content
The silicone oil emulsion 3～8 of 55% content
Fluorinated acrylate emulsion 1～3
Nanoscale or micron-sized powder material 0.5～10
Water 70
Compound method
Above-mentioned polytetrafluoroethyldispersion dispersion, silicone oil emulsion, fluorinated acrylate and nanometer or micron order material are placed in the dosage bunker, through fully stirring, it is mixed at normal temperatures and pressures.And then add entry, through fully stirring, make coating liquid again.
The powder body material that adopts is magnesium hydroxide, aluminium hydroxide, imvite, kaolin.Can adopt a kind of material in four kinds of materials or two or more composite materials in the use, its ratio of mixing mutually adopts weight ratio, is 0.5～3: 0.5～3.Powder body material can be that nanoscale also can be a micron order.
2, coating is handled
The filtrate that is adopted is: polyphenylene sulfide fibre Nomex or chemical fibre Nomex and fiberglass needled mat.Adopt conventional postfinishing process, through dipping-pressure rolling-technical process such as typing-press polish, make filter material surface form the body composite membrane above-mentioned filtrate, multiple securely on filtrate.
The inventive method is simple, and is easy to implement.Because contain nanometer or micron order material in the coating liquid, and these materials self have the heat absorption function, the heat resistance of the filtering material after the coating is greatly improved.Through the Nomex after the arrangement, its normal serviceability temperature can be brought up to 220 ℃ by undressed 160 ℃, and its instantaneous serviceability temperature can be brought up to 250～260 ℃ by undressed 190 ℃.In addition,, make the filtering material surface become smooth, be easy to deashing because the filter material surface coating contains nanometer or micron order material.Be alkaline matter because of nanometer or micron order material again, sulphur during filtration and in the flue gas and sulfur oxide chemically reactive.So make filtrate have the performance of gas phase desulfurization again.It is a kind of functional processing method of very good industrial smoke filtering material.Our experiments show that obviously improve the service life of the flue filtering material of handling through this method, easy-to-clean ash and gas phase desulfurization performance are very good.Make the user reduce production cost.
The present invention does not have accompanying drawing
The specific embodiment
Embodiment 1
The filtrate that is adopted is: the polyphenylene sulfide fibre Nomex.
The preparation of coating liquid
Formula for raw stock
The composition percentage by weight
The polytetrafluoroethyldispersion dispersion 20 of 60% content
The silicone oil emulsion 5 of 55% content
Fluorinated acrylate emulsion 2
Nanoscale or micron order magnesium hydrate powder 3
Water 70
Compound method
Above-mentioned polytetrafluoroethyldispersion dispersion, silicone oil emulsion, fluorinated acrylate and nanometer or micron order magnesium hydroxide are placed in the dosage bunker, through fully stirring, it is mixed at normal temperatures and pressures.And then add entry, through fully stirring, make coating liquid again.
Coating is handled
Adopt conventional postfinishing process, through dipping-pressure rolling-technical process such as typing-press polish, make filter material surface form the body composite membrane above-mentioned filtrate, multiple securely on filtrate.
Embodiment 2
The filtrate that is adopted is: fiberglass needled mat.
The preparation of coating liquid
Formula for raw stock
The composition percentage by weight
The polytetrafluoroethyldispersion dispersion 20 of 60% content
The silicone oil emulsion 5 of 55% content
Fluorinated acrylate emulsion 2
Nanometer or micron order imvite and kaolin mixed powder material 3
Water 70
Compound method
Above-mentioned polytetrafluoroethyldispersion dispersion, silicone oil emulsion, fluorinated acrylate and imvite and kaolinic composite material are placed in the dosage bunker, and the mixed proportion of kaolin and imvite is a weight ratio, and its ratio is 1: 2.Through fully stirring, it is mixed at normal temperatures and pressures.And then add entry, through fully stirring, make coating liquid again.
Coating is handled
Adopt conventional postfinishing process, through dipping-pressure rolling-technical process such as typing-press polish, make filter material surface form the body composite membrane above-mentioned filtrate, multiple securely on filtrate.
Embodiment 3
The filtrate that is adopted is: polyamide fibre 66 Nomexs.
The preparation of coating liquid
Formula for raw stock
The composition percentage by weight
The polytetrafluoroethyldispersion dispersion 20 of 60% content
The silicone oil emulsion 5 of 55% content
Fluorinated acrylate emulsion 2
Kaolin powder material 3
Water 70
Compound method
Above-mentioned polytetrafluoroethyldispersion dispersion, silicone oil emulsion, fluorinated acrylate and kaolin powder material are placed in the dosage bunker.Through fully stirring, it is mixed at normal temperatures and pressures.And then add entry, through fully stirring, make coating liquid again.
Coating is handled
Adopt conventional postfinishing process, through dipping-pressure rolling-technical process such as typing-press polish, make filter material surface form the body composite membrane above-mentioned filtrate, multiple securely on filtrate.
Embodiment 4
The filtrate that is adopted is: the terylene Nomex.
The preparation of coating liquid
Formula for raw stock
The composition percentage by weight
The polytetrafluoroethyldispersion dispersion 20 of 60% content
The silicone oil emulsion 5 of 55% content
Fluorinated acrylate emulsion 2
Nanometer or micron order imvite powder 3
Water 70
Compound method
Above-mentioned polytetrafluoroethyldispersion dispersion, silicone oil emulsion, fluorinated acrylate and imvite powder are placed in the dosage bunker.Through fully stirring, it is mixed at normal temperatures and pressures.And then add entry, through fully stirring, make coating liquid again.
Coating is handled
Adopt conventional postfinishing process, through dipping-pressure rolling-technical process such as typing-press polish, make filter material surface form the body composite membrane above-mentioned filtrate, multiple securely on filtrate.
Claims (2)
1. the functional topical finishing method of a high temperature flue gas filter material comprises the preparation and the coating processing of coating liquid, it is characterized in that:
The preparation of coating liquid
Formula for raw stock
The composition percentage by weight
The polytetrafluoroethyldispersion dispersion 15～30 of 60% content
The silicone oil emulsion 3～8 of 55% content
Fluorinated acrylate emulsion 1～3
Nanometer or micron-sized powder material 0.5～10
Water 70
Nanometer grade powder material is magnesium hydroxide, aluminium hydroxide, kaolin and imvite.
2. method according to claim 1 is characterized in that the use of related nanometer or micron order material, can be the single variety material, or the composite material of two or more materials, and its ratio of mixing mutually adopts weight ratio, is 0.5～3: 0.5～3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100113589A CN101270546B (en) | 2008-05-08 | 2008-05-08 | Functional topical finishing method for high temperature flue gas filter material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100113589A CN101270546B (en) | 2008-05-08 | 2008-05-08 | Functional topical finishing method for high temperature flue gas filter material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101270546A CN101270546A (en) | 2008-09-24 |
| CN101270546B true CN101270546B (en) | 2010-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100113589A Expired - Fee Related CN101270546B (en) | 2008-05-08 | 2008-05-08 | Functional topical finishing method for high temperature flue gas filter material |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101537280B (en) * | 2009-04-07 | 2011-11-23 | 厦门三维丝环保股份有限公司 | Preparation method of nano-particle modified polyphenyl thioether filter material |
| CN101596380B (en) * | 2009-06-25 | 2012-09-26 | 南京际华三五二一特种装备有限公司 | Method for preparing high-precision low-resistance special type filtration material |
| CN102059027A (en) * | 2010-10-31 | 2011-05-18 | 房县诚信汽配有限责任公司 | Dust-free fiber deep filtration filter element |
| CN102101943A (en) * | 2010-12-09 | 2011-06-22 | 南京际华三五二一特种装备有限公司 | Aqueous adhesive emulsion for high-temperature-resistant and corrosion-resistant filtering material and preparation method thereof |
| CN102304850B (en) * | 2011-08-23 | 2012-11-14 | 江苏东方滤袋有限公司 | Water and oil repellent finishing method for bag type dedusting material |
| CN103726322B (en) * | 2013-11-29 | 2015-11-04 | 山东新力环保材料有限公司 | Flue filtering material Final finishing intumescent coating glue, preparation method and using method |
| CN104151755A (en) * | 2014-08-15 | 2014-11-19 | 安徽省元琛环保科技有限公司 | PTFE composite emulsion for filter material post-treatment |
| CN105155268A (en) * | 2015-07-02 | 2015-12-16 | 安徽省绩溪县华林玻璃纤维有限公司 | ECR/PTFE fiber blended yarn treatment method |
| CN105749621A (en) * | 2016-04-19 | 2016-07-13 | 上海净华环保科技有限公司 | Filter felt film-forming polytetrafluoroethylene PTFE-B dispersion treating process |
| CN106758164A (en) * | 2016-11-22 | 2017-05-31 | 郑州仁宏医药科技有限公司 | A kind of flue filtering material Final finishing expanded material and its preparation method and application |
| CN108786273A (en) * | 2018-08-10 | 2018-11-13 | 安徽原野滤材有限公司 | A kind of oil-resistant high-temperature filter cloth for water-oil separating |
| CN109663413A (en) * | 2019-03-01 | 2019-04-23 | 抚顺天成环保科技有限公司 | A kind of preparation method of high-temperature-resistant filtering material heat resisting film-coating |
| CN112843865A (en) * | 2021-01-19 | 2021-05-28 | 盐城庆达新材料有限公司 | Modified vapor sealing material for automobile filter |
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2008
- 2008-05-08 CN CN2008100113589A patent/CN101270546B/en not_active Expired - Fee Related
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Owner name: LIAONING AOYUAN ENVIRONMENTAL PROTECTION TECHNOLOG Free format text: FORMER NAME: YINKOU NAISITE FILTER TECHNOLOGY CO., LTD. |
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Address after: 115005 No. 1-55 Dong Cun, old border area, Yingkou, Liaoning Patentee after: Liaoning Aoyuan Environmental Protection Technology Co., Ltd. Address before: 115005 No. 1-55 Dong Cun, old border area, Yingkou, Liaoning Patentee before: Yinkou Naisite Filter Technology Co., Ltd. |
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