CN102061626A - Preparation method of PP composite felt with functions of environment friendliness, high temperature resistance, acid-base resistance and corrosion resistance - Google Patents
Preparation method of PP composite felt with functions of environment friendliness, high temperature resistance, acid-base resistance and corrosion resistance Download PDFInfo
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- CN102061626A CN102061626A CN2009102260322A CN200910226032A CN102061626A CN 102061626 A CN102061626 A CN 102061626A CN 2009102260322 A CN2009102260322 A CN 2009102260322A CN 200910226032 A CN200910226032 A CN 200910226032A CN 102061626 A CN102061626 A CN 102061626A
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Abstract
The invention relates to a preparation method of a PP composite felt with the functions of environment friendliness, high temperature resistance, acid-base resistance and corrosion resistance. The preparation method comprises the steps of chopping high quality high temperature resistant glass fibers, ceramic fibers and stainless steel fibers into short yarns, screening acid-resistant and corrosion-resistant polyimide fibers, alkali-resistant polyamide fibers as well as terylene long fibers and short fibers, mixing the fibers based on a weight ratio by virtue of an acupuncture apparatus, then evening and carding, compounding in a layered mode as well as overlaying into a net and acupuncturing to obtain the PP composite felt, soaking the PP composite felt with polytetrafluoroethylene for a plurality of hours to form a polytetrafluoroethylene membrane on the surface of the composite felt, automatically drying the soaked PP composite felt in a drying room, thermally covering a plastic PTFE (polytetrafluoroethylene) membrane after drying, and then finishing to obtain the PP composite felt with the functions of environment friendliness, high temperature resistance, acid-base resistance and corrosion resistance. The composite felt is resistant to high temperature, acid and base, corrosion, abrasion and folding and has high strength, the technical problems of blocking and pasting of the filter bag are better solved, the service life is long, and the maintenance cost is low.
Description
Technical field
The present invention relates to a kind of environmental protection dedusting filter pocket material, the anticorrosive PP composite felt of the antiacid alkali of particularly a kind of environment friendly heat resistant preparation method.
Background technology
Environmental pollution causes that whole world national governments pay much attention to, be related to the healthy and vegeto-animal existence of human body, the Chinese government is stood energy-saving and emission-reduction into state basic policy, since the reform and opening-up, China's industry advances fast, the pollution of dust is also more and more serious, various industrial dedusting devices arise at the historic moment, in industries such as cement, iron and steel, chemical industry, waste incinerations, extensively adopt the dedusting filter bag, filter bag generally adopts the material of fabric or felt to make and forms, and still: in the use of dedusting filter bag, filter efficiency and deashing property become the contradiction that is difficult to be in harmonious proportion.Along with filter bag is long service time, dust in the filtrate can be on the increase along stream pressure, flue gas and dust contain certain humidity and temperature, because of the filter bag high-temperature resistant result poor, the big or distortion of the contraction of main cause felt, fouling quite easily, filter bag be " hardening " (being commonly called as " sticking with paste bag ") easily, increases running resistance, even stop up, cause the system handles air quantity to descend, the fan operation energy consumption increases, and the working life of filter bag is shortened, even the deduster deashing is all right, can not check the resistance that operation continues rising, cause the deduster exhaust not smooth, return ash, cause secondary pollution.At first to solve this key technology of filter bag, at home in the same industry, R﹠D institution and science and technology in enterprise personnel are constantly studying, are exploring, are improving filter pocket material in the dedusting, though obtain some progress, still exist the technical barrier that does not overcome as yet in practice.
Summary of the invention
The objective of the invention is to overcome above deficiency, the anticorrosive PP composite felt of the antiacid alkali of a kind of environment friendly heat resistant preparation method is provided, have characteristics such as high temperature resistant, high strength, antiacid alkali, anticorrosive, wear-resisting, anti-folding, it is lower, indeformable to pass through under the different high temperature percent thermal shrinkage and creep rate.Also have easy-to-clean ash, refuse the anti-wet goods effect of water, very high filter efficiency is not only arranged, efficiency of dust collection height, and long service life.Under the situation that does not increase operating load, can guarantee the regime flow of air-flow for a long time, to guarantee efficient, the stable operation in the production process, be the low NEW TYPE OF COMPOSITE felt of new generation of a kind of maintenance cost.
The technical scheme that the present invention solves its technical problem adopts following preparation method: contain the high-quality refractory glass fibre, ceramic fibre, stainless steel fibre, it is cut into short silk, screening has acidproof, erosion-resisting polyimide fiber, alkali-proof polyamide fiber, terylene long fiber and staple fibre, by acupuncture apparatus with above-mentioned fiber by etc. the anharmonic ratio example mix, then: the cotton-neatening carder reason, stratiform is compound, folded net acupuncture---make the PP composite felt, the PP composite felt is flooded a few hours by polytetrafluoroethylene (PTFE) again, make the surface of PP composite felt form a strata polytetrafluoroethylene film, the PP composite felt of dipping is transported to oven dry automatically in the drying room, after the oven dry, heat is covered one deck plastics PTFE film, again through arrangement, become the anticorrosive PP composite felt of the antiacid alkali of a kind of environment friendly heat resistant, the technological process of PP composite felt: cotton → (glass fibre is fed in shredding → mixing, stainless steel fibre, ceramic fibre, polyimide fiber, polyamide fiber, the terylene long fiber, polyester staple fiber) → and cotton-neatening carder reason → stratiform is compound → folded net acupuncture → and polytetrafluoroethylene (PTFE) dipping a few hours → oven dry → heat is covered one deck plastics PTFE film → post processing → finished product felt automatically.
Beneficial effect of the present invention is: this PP composite felt has advantages such as high temperature resistant, high strength, antiacid alkali, anticorrosive, wear-resisting, anti-folding, and it is lower, indeformable to pass through under the different high temperature percent thermal shrinkage and creep rate.Also have easy-to-clean ash, refuse the anti-wet goods effect of water, very high filter efficiency is arranged, the dust discharge amount after the gas process PP composite felt of dust-laden is filtered approaches zero.The efficiency of dust collection height, stable performance, resistance is little, obstruction that has solved filter bag preferably and the technical barrier of sticking with paste bag, long service life not only, maintenance cost is also lower simultaneously.This PP composite felt can be used for the sealing ring and the pad of automobile, diesel engine and mechanical field simultaneously, and its superior function is higher than the material of oil resistant rubber, meets the direction of national environmental protection industry development.
The specific embodiment:
Implement the preparation method: contain the high-quality refractory glass fibre, ceramic fibre, stainless steel fibre, it is cut into short silk, screening has acidproof, erosion-resisting polyimide fiber, alkali-proof polyamide fiber, terylene long fiber and staple fibre, by acupuncture apparatus with above-mentioned fiber by etc. the anharmonic ratio example mix, then: the cotton-neatening carder reason, stratiform is compound, folded net acupuncture---make the PP composite felt, the PP composite felt is flooded a few hours by polytetrafluoroethylene (PTFE) again, make the surface of PP composite felt form a strata polytetrafluoroethylene film, the PP composite felt of dipping is transported to oven dry automatically in the drying room, after the oven dry, heat is covered one deck plastics PTFE film, again through arrangement, become the anticorrosive PP composite felt of the antiacid alkali of a kind of environment friendly heat resistant, the technological process of PP composite felt: cotton → (glass fibre is fed in shredding → mixing, stainless steel fibre, ceramic fibre, polyimide fiber, polyamide fiber, the terylene long fiber, polyester staple fiber) → and cotton-neatening carder reason → stratiform is compound → folded net acupuncture → and polytetrafluoroethylene (PTFE) dipping a few hours → oven dry → heat is covered one deck plastics PTFE film → post processing → finished product felt automatically.
In making PP composite felt process, select high-quality glass fibre, stainless steel fibre, ceramic fibre for use, it is cut into short silk, high temperature resistantly reaches 260 ℃ more than-350 ℃, glass fibre, stainless steel fibre, ceramic fibre are used for the PP composite felt, at high temperature percent thermal shrinkage and creep rate are lower, indeformable, superior other fibrous material of its deashing property, stainless steel fibre meets humidity and can not get rusty, high-temperature resistant result is good, and ceramic fibre is high temperature resistant to be reached more than 450 ℃.Polyimide fiber contains acidproof by force, the erosion-resisting composition of chemistry and is used for the PP composite felt, as runs into the dust that contains acid and corrosion, makes the PP composite felt can effectively solve acid and the problem of corroding, and the filter bag that the PP composite felt is made has obtained prolongation service life.Polyamide fiber contains alkaline-resisting chemical analysis, has strong alkaline-resisting performance, the special composition that in the cement in cement plant, contains alkali, dust in the deduster is by the filtration of filter bag, alkalescence just sticks on the filter bag superficial layer, time, filter bag very easily hardened (being commonly called as " sticking with paste bag ") once the long alkali flower that forms, and polyamide fiber can be eliminated the alkali flower on the filter bag effectively.Terylene long fiber and staple fibre can increase the intensity of PP composite felt, form a strata polytetrafluoroethylene film on the surface of PP composite felt, add heat and cover one deck plastics PTFE film, the air-permeable layer and the ash-removal effect of PP composite felt have been improved, under abominable gaseous environment, good filtration effect prolongs composite felt service life.The PP composite felt contains refractory glass fibre, stainless steel fibre, ceramic fibre, acidproof anticorrosive polyimide fiber, alkali-proof polyamide fiber, terylene long fiber and staple fibre, by etc. the anharmonic ratio example mix, be processed into the PP composite felt by acupuncture apparatus, though the needling density of PP composite felt is tight, permeability is good, has good dust catching effect, after making the gas process PP composite felt filtration of dust-laden, dust discharge amount approaches zero.Make PP composite felt percent thermal shrinkage and creep rate all reach domestic advanced person's technical merit.
Claims (1)
1. the anticorrosive PP composite felt of the antiacid alkali of environment friendly heat resistant preparation method, it is characterized in that: contain the high-quality refractory glass fibre, ceramic fibre, stainless steel fibre, it is cut into short silk, screening has acidproof, erosion-resisting polyimide fiber, alkali-proof polyamide fiber, terylene long fiber and staple fibre, by acupuncture apparatus with above-mentioned fiber by etc. the anharmonic ratio example mix, then: the cotton-neatening carder reason, stratiform is compound, folded net acupuncture---make the PP composite felt, the PP composite felt is flooded a few hours by polytetrafluoroethylene (PTFE) again, make the surface of PP composite felt form a strata polytetrafluoroethylene film, the PP composite felt of dipping is transported to oven dry automatically in the drying room, after the oven dry, heat is covered one deck plastics PTFE film, again through arrangement, become the anticorrosive PP composite felt of the antiacid alkali of a kind of environment friendly heat resistant, the technological process of PP composite felt: cotton → (glass fibre is fed in shredding → mixing, stainless steel fibre, ceramic fibre, polyimide fiber, polyamide fiber, the terylene long fiber, polyester staple fiber) → and cotton-neatening carder reason → stratiform is compound → folded net acupuncture → and polytetrafluoroethylene (PTFE) dipping a few hours → oven dry → heat is covered one deck plastics PTFE film → post processing → finished product felt automatically.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102260322A CN102061626A (en) | 2009-11-15 | 2009-11-15 | Preparation method of PP composite felt with functions of environment friendliness, high temperature resistance, acid-base resistance and corrosion resistance |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009102260322A CN102061626A (en) | 2009-11-15 | 2009-11-15 | Preparation method of PP composite felt with functions of environment friendliness, high temperature resistance, acid-base resistance and corrosion resistance |
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| CN102061626A true CN102061626A (en) | 2011-05-18 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103657253A (en) * | 2013-12-05 | 2014-03-26 | 吴江市亨德利纺织厂 | Making method of multifunctional filtering cloth |
| CN104667655A (en) * | 2015-02-12 | 2015-06-03 | 江苏新业重工股份有限公司 | High-temperature-resisting bag-type dust collector bag |
| CN106192445A (en) * | 2016-06-24 | 2016-12-07 | 苏州益可泰电子材料有限公司 | The preparation method of wear resistant belt |
| CN107998747A (en) * | 2017-12-26 | 2018-05-08 | 广西金邦泰科技有限公司 | A kind of wear-resisting, heat safe cloth bag that gathers dust |
| CN109972290A (en) * | 2019-03-08 | 2019-07-05 | 鄂州宝丰金属棉技术股份有限公司 | One kind kills mouse felt and preparation method thereof |
| CN110898529A (en) * | 2019-12-17 | 2020-03-24 | 中材科技膜材料（山东）有限公司 | Smoke filtering composite filter material for glass melting furnace |
| CN111905452A (en) * | 2020-05-20 | 2020-11-10 | 重庆文理学院 | Low-resistance high-efficiency composite filter material for mask and preparation method thereof |
| CN115300995A (en) * | 2021-05-08 | 2022-11-08 | 江苏喜洋洋环保设备科技有限公司 | Preparation method for improving strength and flexibility of alkali-free glass fiber filter material |
-
2009
- 2009-11-15 CN CN2009102260322A patent/CN102061626A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103657253A (en) * | 2013-12-05 | 2014-03-26 | 吴江市亨德利纺织厂 | Making method of multifunctional filtering cloth |
| CN104667655A (en) * | 2015-02-12 | 2015-06-03 | 江苏新业重工股份有限公司 | High-temperature-resisting bag-type dust collector bag |
| CN106192445A (en) * | 2016-06-24 | 2016-12-07 | 苏州益可泰电子材料有限公司 | The preparation method of wear resistant belt |
| CN107998747A (en) * | 2017-12-26 | 2018-05-08 | 广西金邦泰科技有限公司 | A kind of wear-resisting, heat safe cloth bag that gathers dust |
| CN109972290A (en) * | 2019-03-08 | 2019-07-05 | 鄂州宝丰金属棉技术股份有限公司 | One kind kills mouse felt and preparation method thereof |
| CN110898529A (en) * | 2019-12-17 | 2020-03-24 | 中材科技膜材料（山东）有限公司 | Smoke filtering composite filter material for glass melting furnace |
| CN111905452A (en) * | 2020-05-20 | 2020-11-10 | 重庆文理学院 | Low-resistance high-efficiency composite filter material for mask and preparation method thereof |
| CN115300995A (en) * | 2021-05-08 | 2022-11-08 | 江苏喜洋洋环保设备科技有限公司 | Preparation method for improving strength and flexibility of alkali-free glass fiber filter material |
| CN115300995B (en) * | 2021-05-08 | 2023-06-30 | 江苏喜洋洋环保设备科技有限公司 | Preparation method for improving strength and flexibility of alkali-free glass fiber filter material |
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Application publication date: 20110518 |