CN103331058A - Processing method of fluorine fiber high temperature filter material utilized as dust-facing surface - Google Patents
Processing method of fluorine fiber high temperature filter material utilized as dust-facing surface Download PDFInfo
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- CN103331058A CN103331058A CN2013102515578A CN201310251557A CN103331058A CN 103331058 A CN103331058 A CN 103331058A CN 2013102515578 A CN2013102515578 A CN 2013102515578A CN 201310251557 A CN201310251557 A CN 201310251557A CN 103331058 A CN103331058 A CN 103331058A
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Abstract
The invention discloses a processing method of a fluorine fiber high temperature filter material utilized as a dust-facing surface. The processing method comprises the following steps of: enabling a PTFE (Polytetrafluoroethylene) film and the high temperature filter material to pass through spunlace together so as to integrally form, processing high temperature fibers into a base felt material through carding, lapping and preparing needle processes, wherein the base felt material comprises a base cloth and a fiber surface layer covered on the base cloth, the fibers of the fiber surface layer are inserted into the base cloth, and the needling density of the base felt material is at 60-200 thorn/CM2; simultaneously unreeling a base felt and the PTFE film into spunlace equipment, adjusting the hydraulic pressure at 200 BAR-380 BAR, forming a PTFE fiber covering layer through spunlace processing, forming a filter material felt when the PTFE fiber covering layer and the fibers of the fiber surface layer are inserted, and obtaining the fluorine fiber high temperature filter material. The processing method provided by the invention has the advantages that processes such as film splitting, carding, lapping and needle preparing are saved, the yield and production efficiency of a product are greatly improved, and the processing cost of a filter material is greatly reduced.
Description
Technical field
The present invention relates to a kind of high-temperature-resistant filtering material for smoke gas treatment, specifically a kind of fluorine fiber high temperature filtering material processing method as dust-collecting face.
Background technology
At present dust-collecting face fluorine fiber high temperature filtering material normally adopts, with the polytetrafluoroethylene (PTFE) fiber, through combing, lapping, acupuncture is compounded in the high-temperature filter material surface again.Fig. 1 is the original process flow chart.The shortcoming of this processing method is: the PTFE fiber of use also all is to form by the cracking of PTFE film, and is very high to the requirement of combing, lapping equipment, also very harsh to the humiture requirement of environment, and increased the manufacturing link.
Summary of the invention
The purpose of this invention is to provide a kind of fluorine fiber high temperature filtering material processing method as dust-collecting face, this method utilizes the PTFE film can produce Fibrotic characteristics under the effect of high pressure liquid drugs injection, sting through water by PTFE film and high-temperature filter material, one-shot forming, saved multiple working procedures such as splitting film, combing, lapping, pre-pin, improve yield rate and the production efficiency of product greatly, significantly reduced the processing cost of such filtrate.And the uniformity of film is far above carding.
The objective of the invention is to be achieved through the following technical solutions:
A kind of fluorine fiber high temperature filtering material processing method as dust-collecting face is characterized in that: this method is stung through water jointly by PTFE film and high-temperature filter material, one-shot forming, and concrete steps are as follows:
1) by combing, lapping, pre-pin operation, high temperature fiber is processed into basic felt material, this basis felt material comprises base cloth and the fibrous face layer that covers on the base cloth, and the fiber of described fibrous face layer interts in base cloth, and wherein the needling density of basic felt material is at 60 ~ 200 thorn/CM2;
2) basic felt and PTFE film are unreeled the water thorn equipment that enters simultaneously, adjust hydraulic pressure at 200BAR ~ 380BAR, through the processing of water thorn, form the polytetrafluoroethylene fibre cover layer, the fiber of described polytetrafluoroethylene fibre cover layer and fibrous face layer interts mutually, constitute the filtrate felt, obtain fluorine fiber high temperature filtering material.Described polytetrafluoroethylene fibre cover surface is the calendering layer.
Among the present invention, it is one or more mixing in polyphenylene sulfide, polyimides, the aramid fiber 1313 fiber that described high temperature is crossed fiber.The thickness of described PTFE film is 8 ~ 30 microns.Basis felt and PTFE film form the polytetrafluoroethylene fibre cover layer through 5 road water thorn processing.
The present invention is by operations such as common combing, lapping, pre-pins, and one or more hybrid process of fibers such as polyphenylene sulfide (PPS), polyimides, aramid fiber 1313 are become basic felt material, and wherein the needling density of basic felt material should be controlled at 60 ~ 200 thorn/CM2; Basic felt and PTFE film are unreeled the water thorn equipment that enters simultaneously, adjust hydraulic pressure at 200BAR ~ 380BAR, through 5 road water thorn processing, form the polytetrafluoroethylene fibre cover layer, the fiber of described polytetrafluoroethylene fibre cover layer and described fibrous face layer interts mutually, constitutes the filtrate felt.
The present invention utilizes the PTFE film can produce Fibrotic characteristics under the effect of high pressure liquid drugs injection, sting through water by PTFE film and high-temperature filter material, one-shot forming, the operations that arrive such as splitting film, combing, lapping, pre-pin have been saved more, improve yield rate and the production efficiency of product greatly, significantly reduced the processing cost of such filtrate.And the uniformity of film is far above carding.
Description of drawings
Fig. 1 is the original process flow chart
Fig. 2 is process chart of the present invention.
Fig. 3 is enforcement schematic diagram of the present invention.
The specific embodiment
The present invention is further illustrated below in conjunction with embodiment.
A kind of fluorine fiber high temperature filtering material processing method as dust-collecting face, this method is stung through water jointly by PTFE film and high-temperature filter material, one-shot forming, concrete steps are as follows:
1) the PPS fiber is added the PPS base cloth through combing, lapping and in pre-needling, form 500g/m2, the basic felt material 1 of pre-needling density 200 thorn/cm2.
2) with the PTFE film 2 of basic felt material and 30 micron thickness, according to shown in Figure 3, enter spun-laced machine 3, five water thorn pressure are adjusted into forward 200bar, reverse 300bar, forward 380bar, reverse 300bar, 260bar forward respectively.
3) after suction, oven dry, obtain fluorine fiber high temperature filtering material.
Press fluorine fiber evenness errors＜2% of the dust-collecting face of this technology making, far above the filtrate of the same race that obtains by the combing needle-punching method (carding method all is about 5% with the degree error), raw material can save 10%, and processing cost can reduce more than 50%.Result of use is equal to the filtrate of the same race that the combing needle-punching method obtains.
Another is as the fluorine fiber high temperature filtering material processing method of dust-collecting face, and this method is stung through water jointly by PTFE film and high-temperature filter material, one-shot forming, and concrete steps are as follows:
1) mixes by combing, lapping in the ratio of 1:3 polyimides and aramid fiber 1313 fiber and in pre-needling, add the aramid fiber 1313 base cloth, form 500g/m2, the basic felt material of pre-needling density 60 thorn/cm2.
2) with the PTFE film of basic felt material and 8 micron thickness, according to shown in Figure 1, enter spun-laced machine, five water thorn pressure are adjusted into forward 200bar, reverse 300bar, forward 300bar, reverse 300bar, 260bar forward respectively.
3) after suction, oven dry, obtain fluorine fiber high temperature filtering material.
Press fluorine fiber evenness errors＜2% of the dust-collecting face of this technology making, far above the filtrate of the same race that obtains by the combing needle-punching method (carding method all is about 5% with the degree error), raw material can save 10%, and processing cost can reduce more than 50%.Result of use is equal to the filtering material of the same race that the combing needle-punching method obtains.
Claims (5)
1. fluorine fiber high temperature filtering material processing method as dust-collecting face is characterized in that: this method is stung through water jointly by PTFE film and high-temperature filter material, one-shot forming, and concrete steps are as follows:
1) by combing, lapping, pre-pin operation, high temperature fiber is processed into basic felt material, this basis felt material comprises base cloth and the fibrous face layer that covers on the base cloth, and the fiber of described fibrous face layer interts in base cloth, and wherein the needling density of basic felt material is at 60 ~ 200 thorn/CM2;
2) basic felt and PTFE film are unreeled the water thorn equipment that enters simultaneously, adjust hydraulic pressure at 200BAR ~ 380BAR, through the processing of water thorn, form the polytetrafluoroethylene fibre cover layer, the fiber of described polytetrafluoroethylene fibre cover layer and fibrous face layer interts mutually, constitute the filtrate felt, obtain fluorine fiber high temperature filtering material.
2. the fluorine fiber high temperature filtering material processing method as dust-collecting face according to claim 1 is characterized in that: it is one or more mixing in polyphenylene sulfide, polyimides, the aramid fiber 1313 fiber that described high temperature is crossed fiber.
3. the fluorine fiber high temperature filtering material processing method as dust-collecting face according to claim 1, it is characterized in that: the thickness of described PTFE film is 8 ~ 30 microns.
4. the fluorine fiber high temperature filtering material processing method as dust-collecting face according to claim 1 is characterized in that: basic felt and PTFE film form the polytetrafluoroethylene fibre cover layer through 5 road water thorn processing.
5. the fluorine fiber high temperature filtering material processing method as dust-collecting face according to claim 1, it is characterized in that: described polytetrafluoroethylene fibre cover surface is the calendering layer.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104562381A (en) * | 2014-12-31 | 2015-04-29 | 厦门三维丝环保股份有限公司 | Polytetrafluoroethylene (PTFE) base cloth special for spunlace filter felt |
| CN105999858A (en) * | 2016-06-28 | 2016-10-12 | 含山县科宇环境工程有限公司 | High-temperature-resistant filter material and production method |
| CN106757791A (en) * | 2016-12-30 | 2017-05-31 | 青岛大学 | Non-woven fabric and its preparation technology based on polytetrafluoroethylene film |
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| JPS59115720A (en) * | 1982-12-24 | 1984-07-04 | Toray Ind Inc | Filter cloth |
| CN1334886A (en) * | 1999-02-05 | 2002-02-06 | 3M创新有限公司 | Microfibers and method of making |
| JP2004188355A (en) * | 2002-12-12 | 2004-07-08 | Nitto Denko Corp | Filtering material for air filter, its using method, air filter unit, and air permeable supporting material |
| CN101244353A (en) * | 2008-04-02 | 2008-08-20 | 东华大学 | Glass-fluorine complex fire resistant filter material and method for manufacturing same |
| CN201192606Y (en) * | 2008-05-20 | 2009-02-11 | 南京际华三五二一特种装备有限公司 | Fluorine fiber high temperature filter material as dust face |
| CN101584953A (en) * | 2009-06-25 | 2009-11-25 | 东华大学 | Making method of high temperature-resistant filter material |
| CN202460299U (en) * | 2012-03-06 | 2012-10-03 | 必达福环境技术(无锡)有限公司 | Polyphenylene sulfide and polytetrafluoroethylene fiber high-temperature resistance teflon permeation film needling filter felt |
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2013
- 2013-06-24 CN CN2013102515578A patent/CN103331058A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59115720A (en) * | 1982-12-24 | 1984-07-04 | Toray Ind Inc | Filter cloth |
| CN1334886A (en) * | 1999-02-05 | 2002-02-06 | 3M创新有限公司 | Microfibers and method of making |
| JP2004188355A (en) * | 2002-12-12 | 2004-07-08 | Nitto Denko Corp | Filtering material for air filter, its using method, air filter unit, and air permeable supporting material |
| CN101244353A (en) * | 2008-04-02 | 2008-08-20 | 东华大学 | Glass-fluorine complex fire resistant filter material and method for manufacturing same |
| CN201192606Y (en) * | 2008-05-20 | 2009-02-11 | 南京际华三五二一特种装备有限公司 | Fluorine fiber high temperature filter material as dust face |
| CN101584953A (en) * | 2009-06-25 | 2009-11-25 | 东华大学 | Making method of high temperature-resistant filter material |
| CN202460299U (en) * | 2012-03-06 | 2012-10-03 | 必达福环境技术(无锡)有限公司 | Polyphenylene sulfide and polytetrafluoroethylene fiber high-temperature resistance teflon permeation film needling filter felt |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104562381A (en) * | 2014-12-31 | 2015-04-29 | 厦门三维丝环保股份有限公司 | Polytetrafluoroethylene (PTFE) base cloth special for spunlace filter felt |
| CN105999858A (en) * | 2016-06-28 | 2016-10-12 | 含山县科宇环境工程有限公司 | High-temperature-resistant filter material and production method |
| CN106757791A (en) * | 2016-12-30 | 2017-05-31 | 青岛大学 | Non-woven fabric and its preparation technology based on polytetrafluoroethylene film |
| CN106757791B (en) * | 2016-12-30 | 2021-09-03 | 青岛大学 | Novel non-woven fabric based on polytetrafluoroethylene film and preparation process thereof |
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Application publication date: 20131002 |