CN201192606Y - Fluorine fiber high temperature filter material as dust face - Google Patents
Fluorine fiber high temperature filter material as dust face Download PDFInfo
- Publication number
- CN201192606Y CN201192606Y CNU2008200359226U CN200820035922U CN201192606Y CN 201192606 Y CN201192606 Y CN 201192606Y CN U2008200359226 U CNU2008200359226 U CN U2008200359226U CN 200820035922 U CN200820035922 U CN 200820035922U CN 201192606 Y CN201192606 Y CN 201192606Y
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- filtering material
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- felt
- high temperature
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Abstract
The utility model relates to a high-temperature filtering material used for flue gas treatment, particularly to a fluorine fiber high temperature filtering material used as a dust facing surface, and belongs to the filtering material manufacturing technical field. The filtering material comprises a base cloth and a fiber surface layer. The fibers of the fiber surface layer are inserted in the base cloth to form a basic felt. The filtering material further comprises a polytetrafluoroethylene fiber covering layer. The fiber surface layer and the polytetrafluoroethylene fiber are inserted into each other to form a filtering material felt. The high-temperature filtering material of the utility model has the various characteristics of water resistance, soot cleaning, oxidation resistance and the like, similar to the PTFE fiber needled-punched felt, however, compared with the PTFE fiber needled-punched felt, the high temperature filtering material has the advantages of reducing cost greatly, ensuring the filtering performance and prolonging the service life.
Description
Technical field
The utility model relates to a kind of high-temperature-resistant filtering material that is used for smoke gas treatment, and especially a kind of fluorine fiber high temperature filtering material as dust-collecting face belongs to the development technical field of filtering material.
Background technology
At present, the filtering material of coal-burning boiler and flue gas of garbage furnace improvement usefulness mainly is polyphenylene sulfide (PPS) Nomex, polytetrafluoroethylene (PTFE) fiber needled felt, membrane-laminated fiberglass filter media.Wherein polyphenylene sulfide (PPS) Nomex is limited by material property, serviceability temperature can not be above 190 ℃, and its oxidation resistent susceptibility is bad, can't adapt under the oxygen environment and filter, polyphenylene sulfide (PPS) itself does not have water repellency in addition, is easy to cause the paste bag under cold operation or high wet condition; It is good that the PTFE needle punched filter material has a water repellency, and advantages such as resistance to oxidation, but it costs an arm and a leg require very highly to equipment for after-treatment, be not suitable for general enterprise and use; The base material of membrane-laminated fiberglass filter media is a glass fibre, so has big defective in the folding, wear-resisting and anti-high wind speed performance, and if have oil droplet etc. to adhere in the running to be easy to cause filter bag to lose efficacy.
Retrieval is found, application number is that the disclosed filtrate of utility model patent that CN98114419.5, name are called " multi-function glass fibre composite filter material and manufacture method thereof " is primary raw material with the glass fibre, add an amount of Nomex fiber or carbon fiber, through base cloth weave, veil manufacturing, acupuncture become felt and after operation such as arrangement make.After acupuncture becomes felt, in inorganic agent, pad and handle and oven dry,, make its surface form a kind of organic film again through hot pressing.Though performances such as the filtrate of making like this is high temperature resistant, corrosion-resistant, wear-resisting, anti-folding increase, because organic film thickness is very thin, therefore act on limitedly, its end properties is compared with the polytetrafluoroethylene (PTFE) fiber needled felt, still has gap greatly.
In addition, application number is that 2005100465476 Chinese utility application discloses a kind of composite fibre high-temperature-resistant filtering material manufacture method, wherein discloses with polytetrafluoroethylene fibre with other high temperature fiber and twist with the fingers or high-temperature-resistant filtering material that blending is made.Because the textile performance of polytetrafluoroethylene fibre is relatively poor, so technology difficulty is big, to the requirement height of equipment.
The utility model content
The purpose of this utility model is: at the shortcoming of above prior art existence, a kind of fluorine fiber high temperature filtering material that can be used as dust-collecting face is proposed, this filtering material should have and the suitable performance of pure polytetrafluoroethylene (PTFE) fiber needled felt filtering material, it is good to refuse water, deashing and antioxygenic property, cost economy is convenient to make.
In order to reach above purpose, the utility model comprises base cloth and the fibrous face layer that covers on the base cloth as the fluorine fiber high temperature filtering material of dust-collecting face, the fiber of described fibrous face layer interts in base cloth, the formation base felt, comprise the polytetrafluoroethylene fibre cover layer in addition, the fiber of described polytetrafluoroethylene fibre cover layer and described fibrous face layer interts mutually, constitutes the filtrate felt.
Of the present utility model further improving is that described polytetrafluoroethylene fibre cover surface is the calendering layer.
It is that the tectal fiber surface of described base cloth, fibrous face layer and polytetrafluoroethylene fibre is attached with fluorine-containing impregnate layer that the utility model further improves.
The utility model can be continued to use the acupuncture apparatus of nonwoven felt, the high-temperature-resistant filtering material of making is because surface coverage has the fluorine fiber, or add processing based on the inorganic agent of polytetrafluoroethylene (PTFE), therefore show the water of refusing close with the PTFE fiber needled felt, deashing and anti-oxidant, the anticorrosive various characteristics that waits, and cost obviously reduces than PTFE fiber needled felt, especially cover layer is handled the surperficial calendering layer of back formation through hot rolling, not only make Nomex thickness, flatness obtains adjusting, and surperficial density and fineness have been improved, further improved and refused water, deashing property, help guaranteeing strainability, increase the service life.Of the present utility model further improving improved the fibre property that comprises base cloth, thereby make that it is wear-resisting, the performance of each side such as heatproof, corrosion-resistant, hydrolysis, resistance to oxidation is all more near PTFE fiber needled felt filtering material, very is suitable as the filtering material of bag-type dust collecting equipment dust-collecting faces such as coal-burning boiler tail gas and waste incineration furnace exhaust gas.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the structural representation of the utility model embodiment one.
Fig. 2 is the structural representation of the utility model embodiment two.
The specific embodiment
Below in conjunction with embodiment the utility model is further described.
Embodiment one
Present embodiment as the fluorine fiber high temperature filtering material of dust-collecting face as shown in Figure 1, upper and lower two-layer polyphenylene sulfide fibre surface layer 2,2 ' is clipped in the upper and lower surface of base cloth 1, and the fiber needle of polyphenylene sulfide fibre surface layer 2 and 2 ' pierces through and is inserted in the base cloth 1 the formation base felt.Polytetrafluoroethylene fibre cover layer 3 covers on the fibrous face layer 2 of basic felt as dust-collecting face, the fiber of polytetrafluoroethylene fibre cover layer 3 and fibrous face layer 2 interts mutually by acupuncture, and polytetrafluoroethylene fibre also needle-penetration is inserted in the base cloth 1, constitutes the filtrate felt.Polytetrafluoroethylene fibre cover layer 3 outer surfaces are the calendering layer 6 that forms by rolling and molding.
In use, be dust-collecting face owing to what encroach at first, infringements such as burn into dewfall, wearing and tearing all mainly occur in dust-collecting face, so the quality of dust-collecting face has determined the service life of product to a great extent.The contrast experiment shows, all the pure PTFE fibre with present optimum is suitable for the performance of each side such as present embodiment is wear-resisting as the fluorine fiber high temperature filtering material of dust-collecting face, heatproof, corrosion-resistant, hydrolysis, resistance to oxidation, service life, and cost and manufacturing process are all approaching with pure PPS fiber.
Embodiment two
Present embodiment is basic identical as the fluorine fiber high temperature filtering material and the embodiment one of dust-collecting face, difference is that base cloth adopts polytetrafluoroethylfiber fiber filaments base cloth or glass fibre and polytetrafluoroethylfiber fiber filaments blending base cloth, the surface layer material of upper and lower basic felt is at least a blended product in polytetrafluoroethylene fibre and glass fibre, PPS fiber, the P84 fiber, passes through high-temperature shaping at last.Two-layer polytetrafluoroethylene fibre cover layer 3 covers the two sides of basic felt respectively, and two-layer polytetrafluoroethylene fibre cover layer 3 and 3 ' covers on the upper and lower fibrous face layer 2,2 ' of basic felt, and other structure is identical, does not give unnecessary details in addition.
In addition, because base cloth, fibrous face layer and the fluorine-containing liquid immersion treatment of cover layer process, so its fiber surface is attached with fluorine-containing impregnate layer.
The contrast experiment shows, its performance indications are near pure PTFE goods, and the different fibers that wherein add have different influences to product, can improve the strainability and the heat resistance of filtrate as adding the P84 fiber, add PPS and can improve corrosion-resistant and wind resistance speed, wear-resisting performance.
In addition to the implementation, the utility model can also have other embodiment.For example, base cloth can adopt identical material with surface layer, also can adopt unlike material; Both can adopt single material, and also can adopt the fiber blend of two or more unlike materials to form.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (4)
1. fluorine fiber high temperature filtering material as dust-collecting face, comprise base cloth and the fibrous face layer that covers on the base cloth, the fiber of described fibrous face layer interts in base cloth, the formation base felt, it is characterized in that: also comprise the polytetrafluoroethylene fibre cover layer, the fiber of described polytetrafluoroethylene fibre cover layer and described fibrous face layer interts mutually, constitutes the filtrate felt.
2. according to the described fluorine fiber high temperature filtering material as dust-collecting face of claim 1, it is characterized in that: described polytetrafluoroethylene fibre cover surface is the calendering layer.
3. according to claim 1 or 2 described fluorine fiber high temperature filtering materials as dust-collecting face, it is characterized in that: described base cloth, fibrous face layer and tectal fiber surface are attached with fluorine-containing impregnate layer.
4. according to the described fluorine fiber high temperature filtering material as dust-collecting face of claim 3, it is characterized in that: the upper and lower surface of described base cloth covers upper and lower two-layer fibrous face layer, formation base felt respectively; Described polytetrafluoroethylene fibre cover layer has two-layer, covers the two sides of basic felt respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200359226U CN201192606Y (en) | 2008-05-20 | 2008-05-20 | Fluorine fiber high temperature filter material as dust face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200359226U CN201192606Y (en) | 2008-05-20 | 2008-05-20 | Fluorine fiber high temperature filter material as dust face |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201192606Y true CN201192606Y (en) | 2009-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008200359226U Expired - Fee Related CN201192606Y (en) | 2008-05-20 | 2008-05-20 | Fluorine fiber high temperature filter material as dust face |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102319528A (en) * | 2011-06-17 | 2012-01-18 | 莱芜兴业滤材树脂有限公司 | Phenolic fiber high-temperature filtration dust removing felt and production method thereof |
| CN101805958B (en) * | 2009-02-13 | 2012-04-18 | 常州市东新华福氟塑材料有限公司 | Polytetrafluoroethylene punched felt and manufacturing method thereof |
| CN103331058A (en) * | 2013-06-24 | 2013-10-02 | 南京际华三五二一环保科技有限公司 | Processing method of fluorine fiber high temperature filter material utilized as dust-facing surface |
| CN105709499A (en) * | 2016-01-28 | 2016-06-29 | 苏州辉龙净化过滤有限公司 | High-temperature-resistant aramid filter cloth capable of facilitating dust removing and preparation method thereof |
-
2008
- 2008-05-20 CN CNU2008200359226U patent/CN201192606Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101805958B (en) * | 2009-02-13 | 2012-04-18 | 常州市东新华福氟塑材料有限公司 | Polytetrafluoroethylene punched felt and manufacturing method thereof |
| CN102319528A (en) * | 2011-06-17 | 2012-01-18 | 莱芜兴业滤材树脂有限公司 | Phenolic fiber high-temperature filtration dust removing felt and production method thereof |
| CN103331058A (en) * | 2013-06-24 | 2013-10-02 | 南京际华三五二一环保科技有限公司 | Processing method of fluorine fiber high temperature filter material utilized as dust-facing surface |
| CN105709499A (en) * | 2016-01-28 | 2016-06-29 | 苏州辉龙净化过滤有限公司 | High-temperature-resistant aramid filter cloth capable of facilitating dust removing and preparation method thereof |
| CN105709499B (en) * | 2016-01-28 | 2020-02-07 | 苏州辉龙净化过滤有限公司 | Aramid fiber high-temperature-resistant filter cloth with easy ash removal function and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NANJING JIHUA 3521 ENVIRONMENTAL TECHNOLOGY CO., L Free format text: FORMER OWNER: NANJING JIHUA 3521 SPECIAL EQUIPMENT CO., LTD. Effective date: 20130401 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 210001 NANJING, JIANGSU PROVINCE TO: 210000 NANJING, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130401 Address after: Jiangsu province Nanjing City Road 210000, Jiangning Binjiang Development Zone Patentee after: Nanjing Jihua 3521 Environmental Protection Science & Technology Co., Ltd. Address before: 210001 Jiangsu city of Nanjing Province in Baixia District Agricultural Road No. 1 Patentee before: Nanjing Jihua 3521 Special Equipment Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090211 Termination date: 20160520 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |