CN105032034A - Superfine glass fiber machine woven composite functional filter material used for denitration and removing dioxin, and preparation method thereof - Google Patents
Superfine glass fiber machine woven composite functional filter material used for denitration and removing dioxin, and preparation method thereof Download PDFInfo
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- CN105032034A CN105032034A CN201510387273.0A CN201510387273A CN105032034A CN 105032034 A CN105032034 A CN 105032034A CN 201510387273 A CN201510387273 A CN 201510387273A CN 105032034 A CN105032034 A CN 105032034A
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Abstract
The invention provides a preparation method of a superfine glass fiber machine woven composite functional filter material used for denitration and removing dioxin. The preparation method comprises following steps: (1) active metal catalyst powder is mixed, and is mixed with PTFE resin so as to obtain PTFE fiber containing a catalyst and PTFE microporous membranes containing a catalyst respectively; (2) the PTFE fiber containing the catalyst and superfine glass fiber are subjected to blending weaving so as to obtain composite yarn, and machine weaving is adopted so as to prepared superfine glass fiber-catalytic PTFE fiber blending machine woven cloth layer; (3) an active metal catalyst emulsion and PTFE emulsion are mixed so as to prepared a catalyst mixed processing liquid, and the superfine glass fiber-catalytic PTFE fiber blending machine woven cloth layer is subjected to entire dipping, and sintering at 300 to 350 DEG C; and (4) the superfine glass fiber-catalytic PTFE fiber blending machine woven cloth layer obtained via sintering and the PTFE microporous membranes containing the catalyst are delivered into a thermal mulch applicator at the same time for surface hot pressing laminating. The preparation method is capable of increasing filtraction accuracy, and denitration and dioxin removing efficiency.
Description
Technical field
The present invention relates to Environmental-protecting dust-removing filed of flue gas purification, particularly relate to and a kind ofly there is denitration with woven composite filtering material of the superfine glass fiber of bioxin effect and preparation method thereof.
Background technology
At present, along with the fast development of economy, the discharge of industrial waste gas sharply increases.The pollution of China's atmospheric environment is on the rise, and progressively pollutes transformation by coal-smoke pollution to mixed type, and flue dust, SOx, NOx, Hg total emission volumn rank first in the world.Wherein nitrogen oxide, bioxin is one of major pollutants in air, and discharge capacity exceedes the self-purification ability of enviroment, endangers huge, and environmental aspect situation is very severe.Nitrogen oxide, bioxin is the topmost gaseous contaminant affecting air quality, is the important symbol whether measurement air is polluted.
Coal-burning power plant and garbage burning factory are the rich anies influential family of SOx and NOx emission, and the pollutant produced in flue gas comprises oxysulfide, nitrogen oxide, dust, the pellet (harmful substance such as IP), dioxin (PCDD/Fs), heavy metal.At present, nitrogen oxide becomes first pollutant acid gas gradually, the water of nitrogen oxide in air is combined and finally can changes into nitric acid and nitrate, nitric acid is one of origin cause of formation of acid rain, it and other pollutants can produce photochemical pollution under certain condition, and serious environment pollution also jeopardizes health.Bioxin is that a class source is wide, strong toxicity, the organic pollution that stability is high.It is the general designation of Duo chlorodiphenyl Bing bioxin and polychlorinated dibenzo, and the former is 75 kinds, the latter 135 kinds, totally 210 homologs.These compounds main have strongly carcinogenic, teratogenesis, mutagenic feature.Due to bioxin stability and be soluble in the characteristic of grease, be just difficult to discharge once enter human body, long term accumulation, will permanent destruction human body immune system and upset the hormone secretion of human body, great bodily injury is formed to human body.
The environmental problem that the harmful substances such as nitrogen oxide, bioxin cause and huge to the harm of health.Although, research and develop various denitrating flue gas both at home and abroad, removed the techniques such as bioxin, had their own characteristics each, and achieve certain achievement, but the common removal efficiency problem that there is a harmful substance, the harmful substances such as the nitrogen oxide, bioxin in flue gas have certain escape phenomenon.
Environmental benefit and economic benefit consider the Developing mainstream by becoming the harmful substance Prevention Technique such as nitrogen oxide, bioxin from now on.In order to improve the removal efficiency of harmful substance further, by R & D design new type functional Environmental-protecting dust-removing filtering material, active catalyst is implanted in filtrate, realize carrying out dedusting simultaneously at high-temperature flue gas, the poisonous and harmful substances such as the nitrogen oxide, bioxin contained in high-temperature flue gas are carried out to the object of catalytic decomposition.Therefore, in original Environmental-protecting dust-removing system, without the need to changing existing process equipment and working condition, the catalytic decomposition of the harmful substances such as residual nitrogen oxide, bioxin can be completed.
Summary of the invention
The object of the invention is to solve the subproblem existed in the filtrate technology of existing denitrifying oxide, bioxin, provide a kind of denitration with woven complex function filtrate of the superfine glass fiber of bioxin and preparation method thereof.
The object of the invention is to be achieved through the following technical solutions:
Denitration, with a preparation method for the woven complex function filtrate of the superfine glass fiber of bioxin, comprises the following steps:
(1) by after the mixing of active metal catalyst powder and PTFE mixed with resin, the PTFE fiber containing catalyst and the PTFE microporous membrane containing catalyst is made respectively;
(2) the PTFE fiber containing catalyst and superfine glass fiber blending are made complex yarn, adopt woven mode to weave and make superfine glass fiber and catalysis PTFE fiber blend machine-woven fabric layer;
(3) active metal catalyst emulsion and PTFE emulsion are mixed and made into catalyst mix treatment fluid, mass-impregnation process are carried out to superfine glass fiber and catalysis PTFE fiber blend machine-woven fabric layer, sinters at 300-350 DEG C afterwards;
(4) superfine glass fiber after sintering and catalysis PTFE fiber blend machine-woven fabric layer are introduced in hot laminating machine with the PTFE microporous membrane containing catalyst simultaneously, carry out the processing of surface heat laminated film-covered.
Preferably, the active metal catalyst in described step (1) is selected from V
2o
5, WO
3, MoO
3/ TiO
2in one or more.
Preferably, the mass ratio of active metal catalyst powder, PTFE toner is 1 ~ 10:99 ~ 90.
Preferably, be 1-5:5-1 containing the PTFE fiber of catalyst and the mass ratio of superfine glass fiber in described step (2).
Preferably, in described step (3), the mass ratio of the active ingredient of active metal catalyst emulsion and PTFE emulsion is 1-99:99-1.
Preferably, the solid content of described PTFE emulsion is 30 ~ 50%.
Preferably, described liquid reactive catalytic component is V
2o
5, WO
3, MoO
3/ TiO
2in one or more.
Preferably, the solid content of described active metal catalyst emulsion is 40 ~ 60%.
That prepares according to said method has denitration with the woven composite filtering material of the superfine glass fiber of bioxin effect,, comprise the PTFE microporous film layer containing catalyst, the first catalyst mix treatment fluid impregnate layer, superfine glass fiber and catalysis PTFE fiber blend machine-woven fabric layer and the second catalyst mix treatment fluid impregnate layer successively; Described superfine glass fiber and catalysis PTFE fiber blend machine-woven fabric layer are the blended cloths adopting woven mode to make; Described containing between the PTFE microporous film layer of catalyst and the first catalyst mix treatment fluid impregnate layer passes through hot pressing cladding.
Beneficial effect of the present invention:
(1) of the present invention there is denitration He the woven composite filtering material of the superfine glass fiber of bioxin effect to have applicable working condition scope wide, without the need to changing original process equipment and working condition, the catalytic decomposition of the harmful substances such as residual nitrogen oxide, bioxin can be completed; System cloud gray model safety and steady, the notable features such as high-efficiency low-resistance long-life, energy resource consumption and operation and maintenance cost lower 30%;
(2) of the present invention have denitration with the woven composite filtering material of the superfine glass fiber of bioxin effect has effect of surface filtration simultaneously, dust is trapped in the surface of filtrate, can realizes Dust Capacity and be less than 5mg/Nm
3near-zero release;
(3) of the present invention have denitration with the woven composite filtering material of the superfine glass fiber of bioxin effect is while filtrating smoke dust, due to the introducing of multi-level catalyst distribution layer, promote the contact area of waste gas and catalyst at double, significantly improve the catalytic decomposition efficiency to harmful substances such as nitrogen oxide, bioxin; Give full play to the function that filtrate removes harmful substance;
(4) adopt superfine glass fiber and catalysis PTFE fiber to make base material, ensure that filtrate entirety has higher hot strength, there is the catalytic decomposition function of the harmful substances such as nitrogen oxide, bioxin simultaneously;
(5) of the present invention have denitration with the superfine glass fiber of bioxin effect woven composite filtering material heat resistance is outstanding.Glass and PTFE fiber continuous operation temperature 260 DEG C, heatproof can reach 280 DEG C instantaneously, meets the temperature conditions of harmful substance and the double requirements of life of bag filter such as catalyst decomposes nitrogen oxide, bioxin.
Accompanying drawing explanation
Fig. 1 is the structural representation of filtrate of the present invention.
Detailed description of the invention
In order to better the present invention is described, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.
A kind of denitration is with the preparation method of the superfine glass fiber of bioxin woven complex function filtrate material, comprise the following steps: (1), by after the mixing of active metal catalyst powder and PTFE mixed with resin, makes the PTFE fiber containing catalyst and the PTFE microporous membrane containing catalyst respectively; (2) the PTFE fiber containing catalyst and superfine glass fiber blending are made complex yarn, adopt woven mode to weave and make superfine glass fiber and catalysis PTFE fiber blend machine-woven fabric layer; (3) active metal catalyst emulsion and PTFE emulsion are mixed and made into catalyst mix treatment fluid, mass-impregnation process are carried out to superfine glass fiber and catalysis PTFE fiber blend machine-woven fabric layer, sinters at 300-350 DEG C afterwards; (4) superfine glass fiber after sintering and catalysis PTFE fiber blend machine-woven fabric layer are introduced in hot laminating machine with the PTFE microporous membrane containing catalyst simultaneously, carry out the processing of surface heat laminated film-covered.Active metal catalyst in described step (1) is selected from V
2o
5, WO
3, MoO
3/ TiO
2in one or more; The mass ratio of active metal catalyst powder, PTFE toner is 1 ~ 10:99 ~ 90.Be 1-5:5-1 containing the PTFE fiber of catalyst and the mass ratio of superfine glass fiber in described step (2).In described step (3), the mass ratio of the active ingredient of active metal catalyst emulsion and PTFE emulsion is 1-99:99-1.The solid content of described PTFE emulsion is 30 ~ 50%.The active ingredient of described active metal catalyst emulsion is V
2o
5, WO
3, MoO
3/ TiO
2in one or more.The solid content of described active metal catalyst emulsion is 40 ~ 60%.
The denitration prepared according to said method is with the superfine glass fiber of bioxin woven complex function filtrate material,, comprise the PTFE microporous film layer containing catalyst, the first catalyst mix treatment fluid impregnate layer, superfine glass fiber and catalysis PTFE fiber blend machine-woven fabric layer and the second catalyst mix treatment fluid impregnate layer successively; Described superfine glass fiber and catalysis PTFE fiber blend machine-woven fabric layer are the blended cloths adopting woven mode to make; Described containing between the PTFE microporous film layer of catalyst and the first catalyst mix treatment fluid impregnate layer passes through hot pressing cladding.
Embodiment 1
By active catalyst V
2o
5, MoO
3/ TiO
2micro mist and PTFE resin mix uniformly by the mass ratio of 5:95, make the PTFE fiber containing catalyst and the PTFE microporous membrane containing catalyst respectively; Wherein, the kind of auxiliary agent and quality can be selected arbitrarily as required.PTFE fiber containing catalyst is mainly used in making Woven filter cloth, and the PTFE microporous membrane containing catalyst is the laminating surface at filtrate finally.By implanting the mode of active catalyst in filtrate, reach the effect removing the harmful substances such as nitrogen oxides in effluent, bioxin while filtering smoke.Concrete steps are as follows:
One is that the PTFE fiber containing catalyst is made complex yarn by the quality of 1:1 than blending with superfine glass fiber, adopts woven mode to weave composite filtering cloth, and this filter cloth is superfine glass fiber and catalysis PTFE fiber blend machine-woven fabric layer 3;
Two be by solid content be 50% active metal catalyst emulsion and solid content be 40% PTFE emulsion be that 20:80 makes catalyst mix treatment fluid by the mass ratio of active ingredient, mass-impregnation process is carried out to composite filtering cloth, at 300 DEG C, carry out high temperature sintering afterwards, form the first catalyst mix treatment fluid impregnate layer 2 and the second catalyst mix treatment fluid impregnate layer 4 in the upper and lower surface of superfine glass fiber and catalysis PTFE fiber blend machine-woven fabric layer.
Three is introduce in hot laminating machine with the PTFE microporous membrane 1 containing active catalyst after the process of filtrate mass-impregnation simultaneously, carry out the processing of surface heat laminated film-covered, film and base material are firmly combined, finally make denitration with the superfine glass fiber of bioxin woven complex function filtrate material.
Denitration is with the superfine glass fiber of bioxin woven complex function filtrate material entirety is divided into four levels: to be followed successively by PTFE microporous film layer 1, first catalyst mix treatment fluid impregnate layer 2, superfine glass fiber and catalysis PTFE fiber blend machine-woven fabric layer 3 containing catalyst and the second catalyst mix treatment fluid impregnate layer 4 to pure qi (oxygen) face by dust-collecting face.
Denitration is with the superfine glass fiber of bioxin woven complex function filtrate material, significantly improve the filtering accuracy of filtrate, filtrate from outside to inside (dust-collecting face is to pure qi (oxygen) face) forms multi-level active catalyst distribution layer, and when high-temperature flue gas is through out-of-date, dust is blocked on the surface of filtrate; When gas containing harmful substance passes through, the harmful substances such as nitrogen oxide, bioxin and active catalyst react, and oxious component is broken down into harmless material and dust is collected in the lump, thus realize flue gas ash removal and the double effects removing harmful substance.
Denitration is with the parameter of the woven complex function filtrate of the superfine glass fiber of bioxin
Embodiment 2
By active catalyst V
2o
5, WO
3, TiO
2micro mist and PTFE resin mix uniformly by the mass ratio of 6:94, make the PTFE fiber containing catalyst and the PTFE microporous membrane containing catalyst respectively; Wherein, the kind of auxiliary agent and quality can be selected arbitrarily as required.PTFE fiber containing catalyst is mainly used in making Woven filter cloth, and the PTFE microporous membrane containing catalyst is the laminating surface at filtrate finally.By implanting the mode of active catalyst in filtrate, reach the effect removing the harmful substances such as nitrogen oxides in effluent, bioxin while filtering smoke.Concrete steps are as follows:
One is that the PTFE fiber containing catalyst is made complex yarn by the quality of 2:2 than blending with superfine glass fiber, adopts woven mode to weave composite filtering cloth, and this filter cloth is superfine glass fiber and catalysis PTFE fiber blend machine-woven fabric layer 3;
Two be by solid content be 45% active metal catalyst emulsion and solid content be 45% PTFE emulsion be that 40:60 makes catalyst mix treatment fluid by the mass ratio of active ingredient, mass-impregnation process is carried out to composite filtering cloth, at 320 DEG C, carry out high temperature sintering afterwards, form the first catalyst mix treatment fluid impregnate layer 2 and the second catalyst mix treatment fluid impregnate layer 4 in the upper and lower surface of superfine glass fiber and catalysis PTFE fiber blend machine-woven fabric layer.
Three is introduce in hot laminating machine with the PTFE microporous membrane 1 containing active catalyst after the process of filtrate mass-impregnation simultaneously, carry out the processing of surface heat laminated film-covered, film and base material are firmly combined, finally make denitration with the superfine glass fiber of bioxin woven complex function filtrate material.
Denitration is with the superfine glass fiber of bioxin woven complex function filtrate material entirety is divided into four levels: to be followed successively by PTFE microporous film layer 1, first catalyst mix treatment fluid impregnate layer 2, superfine glass fiber and catalysis PTFE fiber blend machine-woven fabric layer 3 containing catalyst and the second catalyst mix treatment fluid impregnate layer 4 to pure qi (oxygen) face by dust-collecting face.
There is denitration with the woven composite filtering material of the superfine glass fiber of bioxin effect, significantly improve the filtering accuracy of filtrate, filtrate from outside to inside (dust-collecting face is to pure qi (oxygen) face) forms multi-level active catalyst distribution layer, and when high-temperature flue gas is through out-of-date, dust is blocked on the surface of filtrate; When gas containing harmful substance passes through, the harmful substances such as nitrogen oxide, bioxin and active catalyst react, and oxious component is broken down into harmless material and dust is collected in the lump, thus realize flue gas ash removal and the double effects removing harmful substance.
There is denitration with the woven composite filtering material of the superfine glass fiber of bioxin effect
The above; be only the present invention's preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (9)
1. a preparation method for the woven complex function filtrate of the superfine glass fiber of denitration and bioxin, is characterized in that, comprise the following steps:
(1) by after the mixing of active metal catalyst powder and PTFE mixed with resin, the PTFE fiber containing catalyst and the PTFE microporous membrane containing catalyst is made respectively;
(2) the PTFE fiber containing catalyst and superfine glass fiber blending are made complex yarn, adopt woven mode to weave and make superfine glass fiber and catalysis PTFE fiber blend machine-woven fabric layer;
(3) active metal catalyst emulsion and PTFE emulsion are mixed and made into catalyst mix treatment fluid, mass-impregnation process are carried out to superfine glass fiber and catalysis PTFE fiber blend machine-woven fabric layer, sinters at 300-350 DEG C afterwards;
(4) superfine glass fiber after sintering and catalysis PTFE fiber blend machine-woven fabric layer are introduced in hot laminating machine with the PTFE microporous membrane containing catalyst simultaneously, carry out the processing of surface heat laminated film-covered.
2. preparation method according to claim 1, is characterized in that, the active metal catalyst in described step (1) is selected from V
2o
5, WO
3, MoO
3/ TiO
2in one or more.
3. preparation method according to claim 1, is characterized in that, in described step (1), the mass ratio of active metal catalyst powder, PTFE toner is 1 ~ 10:99 ~ 90.
4. preparation method according to claim 1, is characterized in that, is 1-5:5-1 containing the PTFE fiber of catalyst and the mass ratio of superfine glass fiber in described step (2).
5. preparation method according to claim 1, is characterized in that, in described step (3), the mass ratio of the active ingredient of active metal catalyst emulsion and PTFE emulsion is 1-99:99-1.
6. preparation method according to claim 5, is characterized in that, the solid content of described PTFE emulsion is 30 ~ 50%.
7. preparation method according to claim 5, is characterized in that, the active ingredient of described active metal catalyst emulsion is V
2o
5, WO
3, MoO
3/ TiO
2in one or more.
8. preparation method according to claim 5, is characterized in that, the solid content of described active metal catalyst emulsion is 40 ~ 60%.
9. the denitration prepared according to the arbitrary described method of claim 1-8 is with the woven complex function filtrate of the superfine glass fiber of bioxin, it is characterized in that, comprise the PTFE microporous film layer containing catalyst, the first catalyst mix treatment fluid impregnate layer, superfine glass fiber and catalysis PTFE fiber blend machine-woven fabric layer and the second catalyst mix treatment fluid impregnate layer successively; Described superfine glass fiber and catalysis PTFE fiber blend machine-woven fabric layer are the blended cloths adopting woven mode to make; Described containing between the PTFE microporous film layer of catalyst and the first catalyst mix treatment fluid impregnate layer passes through hot pressing cladding.
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Cited By (4)
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| CN105442305A (en) * | 2015-11-17 | 2016-03-30 | 安徽省元琛环保科技有限公司 | Preparation method of glass fiber filtering material with V-Mo-Ti denitration system |
| CN105854414A (en) * | 2016-03-31 | 2016-08-17 | 上海市凌桥环保设备厂有限公司 | Composite filter material for air purifier and a preparation method thereof |
| CN106823561A (en) * | 2017-02-27 | 2017-06-13 | 辽宁鸿盛环境技术集团有限公司 | A kind of inorfil is combined woven filtrate and preparation method with organic fiber |
| CN112807851A (en) * | 2020-12-24 | 2021-05-18 | 上海洁晟环保科技有限公司 | Composite structure filter element, multilayer composite structure filter material, preparation method and application thereof |
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| CN112807851A (en) * | 2020-12-24 | 2021-05-18 | 上海洁晟环保科技有限公司 | Composite structure filter element, multilayer composite structure filter material, preparation method and application thereof |
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