CN105289126A - Filter screen used for preventing and controlling fog and haze - Google Patents
Filter screen used for preventing and controlling fog and haze Download PDFInfo
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- CN105289126A CN105289126A CN201510779951.8A CN201510779951A CN105289126A CN 105289126 A CN105289126 A CN 105289126A CN 201510779951 A CN201510779951 A CN 201510779951A CN 105289126 A CN105289126 A CN 105289126A
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- catalyst
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- screen pack
- haze
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- 239000003054 catalyst Substances 0.000 claims abstract description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 8
- 239000000835 fiber Substances 0.000 claims abstract description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 15
- 239000003426 co-catalyst Substances 0.000 claims description 12
- 229910021536 Zeolite Inorganic materials 0.000 claims description 7
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical group O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 7
- 239000010457 zeolite Substances 0.000 claims description 7
- 229910052709 silver Inorganic materials 0.000 claims description 6
- 239000004408 titanium dioxide Substances 0.000 claims description 6
- 239000013078 crystal Substances 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 4
- 229910052684 Cerium Inorganic materials 0.000 claims description 3
- DQMUQFUTDWISTM-UHFFFAOYSA-N O.[O-2].[Fe+2].[Fe+2].[O-2] Chemical compound O.[O-2].[Fe+2].[Fe+2].[O-2] DQMUQFUTDWISTM-UHFFFAOYSA-N 0.000 claims description 3
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 3
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 27
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 abstract description 7
- 239000002245 particle Substances 0.000 abstract description 6
- 230000036541 health Effects 0.000 abstract description 5
- 210000002345 respiratory system Anatomy 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract 2
- 239000010410 layer Substances 0.000 description 17
- 239000003595 mist Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 206010006451 bronchitis Diseases 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 206010006458 Bronchitis chronic Diseases 0.000 description 2
- 208000024172 Cardiovascular disease Diseases 0.000 description 2
- 206010020772 Hypertension Diseases 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000000443 aerosol Substances 0.000 description 2
- 230000036772 blood pressure Effects 0.000 description 2
- 208000007451 chronic bronchitis Diseases 0.000 description 2
- 230000002079 cooperative effect Effects 0.000 description 2
- 208000029078 coronary artery disease Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000035558 fertility Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000001802 infusion Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 206010002383 Angina Pectoris Diseases 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 206010008111 Cerebral haemorrhage Diseases 0.000 description 1
- 206010008190 Cerebrovascular accident Diseases 0.000 description 1
- 208000006545 Chronic Obstructive Pulmonary Disease Diseases 0.000 description 1
- 208000014085 Chronic respiratory disease Diseases 0.000 description 1
- 208000035473 Communicable disease Diseases 0.000 description 1
- 201000006306 Cor pulmonale Diseases 0.000 description 1
- 208000020401 Depressive disease Diseases 0.000 description 1
- 206010014561 Emphysema Diseases 0.000 description 1
- 206010019280 Heart failures Diseases 0.000 description 1
- 206010061216 Infarction Diseases 0.000 description 1
- 206010024642 Listless Diseases 0.000 description 1
- 206010058467 Lung neoplasm malignant Diseases 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 208000004186 Pulmonary Heart Disease Diseases 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 208000006011 Stroke Diseases 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 229930003316 Vitamin D Natural products 0.000 description 1
- QYSXJUFSXHHAJI-XFEUOLMDSA-N Vitamin D3 Natural products C1(/[C@@H]2CC[C@@H]([C@]2(CCC1)C)[C@H](C)CCCC(C)C)=C/C=C1\C[C@@H](O)CCC1=C QYSXJUFSXHHAJI-XFEUOLMDSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000009798 acute exacerbation Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 239000000926 atmospheric chemistry Substances 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 210000000748 cardiovascular system Anatomy 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 208000026106 cerebrovascular disease Diseases 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002526 effect on cardiovascular system Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004720 fertilization Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 230000007574 infarction Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 201000005202 lung cancer Diseases 0.000 description 1
- 208000020816 lung neoplasm Diseases 0.000 description 1
- 201000003102 mental depression Diseases 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 208000010125 myocardial infarction Diseases 0.000 description 1
- 201000009240 nasopharyngitis Diseases 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000000414 obstructive effect Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 206010039083 rhinitis Diseases 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 208000007442 rickets Diseases 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052815 sulfur oxide Inorganic materials 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 235000019166 vitamin D Nutrition 0.000 description 1
- 239000011710 vitamin D Substances 0.000 description 1
- 150000003710 vitamin D derivatives Chemical class 0.000 description 1
- 229940046008 vitamin d Drugs 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Landscapes
- Catalysts (AREA)
Abstract
The invention discloses a filter screen. The filter screen comprises a frame; at least 6 layers of a net structure are fixed in the frame; from inside to outside, a metal wire net support layer, a porous fibre layer, an active carbon layer, a catalyst layer, a porous fibre layer, and a metal wire net support layer are overlapped on the net structure successively; the catalyst later is composed of a powdery catalyst comprising a carrier, an active component, and a catalyst promoter. PM2.5 particles, nitrogen oxides, and oxysulfides contents are reduced to extremely low levels when fog and haze air is delivered through the filter screen; air in vehicles is purified effectively; and respiratory system health of people indoor is protected.
Description
Technical field
The present invention relates to air purification field, be specifically related to a kind of screen pack preventing and treating haze.
Background technology
Haze weather is a kind of atmosphere pollution state, haze is the general statement to suspended particulate substance content overproof various in air, and especially PM2.5 (equivalent aerodynamic diameter is less than or equal to the particle of 2.5 microns) is considered to " arch-criminal " that cause haze weather.
The aerosol systems that mist is made up of the small water droplet be suspended in a large number in surface air or ice crystal.Come across autumn and winter season, be the product of ground layer water in air vapour condensation (or sublimating) more.The existence of mist can reduce air transparency, make visibility deterioration, if the horizontal visibility of object is reduced within 1000 meters, just the weather phenomenon of the condensation vapor be suspended in surface air (or sublimating) thing is called mist (Fog).
Haze, also claims the particle such as dust, sulfuric acid, nitric acid, organic hydrocarbon compounds in gray haze (smog) air that air also can be made muddy.The horizontal visibility of object is called mist or mist (Mist) in this phenomenon of 1000-10000 rice.Formed mist time atmospheric humidity should be saturated (when existing if any a large amount of nuclei of condensation, relative humidity not necessarily reach 100% just may occur saturated).Due to the mist scattering of aqueous water or ice crystal composition light and wavelength relationship not quite, thus mist seems to be creamy white or Bluish white and grey.Sulfur dioxide, nitrogen oxide and pellet are the main compositions of haze.
2013, " haze " became annual keyword.In the January of this year, 4 times haze process shrouds 30 provinces (district, city), and in Beijing, only having 5 days is not haze sky.Have report display, in 500 cities of Largest In China, only reach the air quality standard of world health organisation recommendations less than the city of 1%, meanwhile, polluting 10 the most serious cities in the world has 7 in China.
The harm that haze produces human body is as follows:
(1) on the impact of respiratory system
The constituent of haze is very complicated, comprises hundreds of Atmospheric Chemistry particulate matter.The particulate that the mainly diameter be wherein harmful to health is less than 10 microns, as mineral grain thing, sea salt, sulfate, nitrate, Organic aerosol particle, fuel and automobile exhaust gas etc., it directly can enter and stick in human respiratory tract and alveolar.Especially submicron particle can be deposited in upper and lower respiratory tract and alveolar respectively, causes the illness such as acute rhinitis and acute bronchitis.For chronic respiratory disease patients such as bronchial astehma, chronic bronchitis, obstructive emphysema and COPDs, haze weather can make state of an illness acute attack or acute exacerbation.If be in this environment for a long time also can bring out lung cancer.
(2) on the impact of cardiovascular system
Haze sky is also very serious on the impact of human body cardiovascular and cerebrovascular disease, normal blood circulation can be hindered, cause cardiovascular disease, hypertension, coronary heart disease, cerebral hemorrhage, angina pectoris, miocardial infarction, heart failure etc. may be brought out, make chronic bronchitis occur cor pulmonale etc.
In addition, thick fog weather pressure ratio is lower, and people can produce a kind of sensation of agitation, and blood pressure can increase naturally to some extent.On the one hand often temperature is lower the greasy weather again, and some hypertension, patients with coronary heart disease go to suddenly cold outdoor from warm indoor, blood vessel expands with heat and contract with cold, and blood pressure also can be made to raise, cause the generation of apoplexy, myocardial infarction.The careful reply so heart and brain blood patient must take medicine on time.
(3) haze weather also can cause that surface layer is ultraviolet to be weakened, and make the increased activity of the infectiousness germ in air, infectious disease increases.
(4) child growth is unfavorable for.Because sunshine in greasy weather reduces, children's Ultraviolet radiation is not enough, and in body, vitamin D generates not enough, greatly reduces, serious meeting causes Infant Rickets, children growth slows down to the absorption of calcium.
(5) mental health is affected
Expert points out, there is impact in the lasting large greasy weather on the psychology of people and health, and say psychologically, the large greasy weather can cause oppressiveness, oppressive impression to people, can stimulate or aggravate the state of mental depression.In addition, due to the low pressure that greasy weather light is more weak and cause, some people can produce spiritual sluggishness, listless phenomenon in the greasy weather.
(6) fecundity is affected
There are some researches show, be exposed to the crowd in the air of high density pollution for a long time, the success rate of its sperm the time of fertilization in vitro may reduce.Researcher has also found the association between toxic air and male fecundity decline.
On November 5th, 2013, " climate change Green Book: reply climate change report (2013) " that the Chinese Academy of Social Sciences, China Meteorological Administration combine issue is pointed out, immediate and mid-term China haze weather is totally in increase trend.Wherein, mist number of days is in obviously reducing, and haze number of days obviously increases, and continuation haze process increases significantly.
At present, along with traffic congestion, people treat more and more for a long time in the various vehicles, and because motor space is narrow and small, its impact by haze is the hugest.Automobile, for the purification of air in car, is generally carry out adsorption filtration purification by screen pack.
CN104043298A discloses a kind of car filters net, include housing, the top of described housing is provided with air inlet, the bottom of described housing is provided with air outlet, filament nonwoven filter cloth filter core is provided with in described housing, described filament nonwoven filter cloth filter core is formed by multilayer filament nonwoven filter cloth is stacked, it is characterized in that: be provided with layer of active carbon filter core below the inherent described filament nonwoven filter cloth filter core of described housing, described active carbon filter core comprises the active carbon be wrapped in non-woven fabrics.
The screen pack of prior art is all by filter or being used for of adsorbing purifies air, but nitrogen oxide in air or oxysulfide be not by filtering or Adsorption.
Summary of the invention
The object of the invention is to propose a kind of screen pack preventing and treating haze, this screen pack can purify haze air, and by the sulfur and nitrogen oxides fast decoupled in air, can effective purifying in-vehicle air.
For reaching this object, the present invention by the following technical solutions:
A kind of screen pack preventing and treating haze, described screen pack comprises frame, frame internal fixtion has at least 6 layers of network structure, and described network structure from inside to outside laminated structure has woven wire supporting layer, porous fiber layer, active carbon layer, catalyst layer, porous fiber layer and woven wire supporting layer.
Described catalyst layer is made up of grained catalyst, and it comprises carrier, active component and co-catalyst.
Described carrier is zeolite, and in the skeleton structure of zeolite, Si/ (Si+Al+P) mol ratio is 0.20.
Described active component is the mixture of titanium dioxide and cerium oxide, and the mol ratio of Ti and Ce is 4:3, and described titanium dioxide is anatase crystal.Described active component weight content is in the catalyst 0.3%-10%, preferred 0.5-%-8%, more preferably 2%-5%.Such as, 0.8%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%.
Described co-catalyst is silver and di-iron trioxide, and the mol ratio of Ag and Fe is 2:5, and described co-catalyst weight content is in the catalyst 0.3%-6%, preferred 0.5%-5%.Such as, 0.8%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%.
Preferably, the weight ratio of described active component and co-catalyst is 5:1 ~ 2:1.Such as 4.5:1,4:1,3.5:1,3:1,2.5:1.
The preparation method of described catalyst can take conventional infusion process and other alternatives, the prior art unrestricted choice that those skilled in the art can grasp according to it, and the present invention repeats no more.
Screen pack of the present invention may be used for the device of family expenses Steam central heating stove and other filtering gas.
The present invention is by choosing specific zeolite as carrier, and the Ti/Ce choosing special ratios is as active component, and Ag/Fe, as co-catalyst, makes this catalyst produce cooperative effect.Be applied to screen pack interlayer, haze air is after described screen pack, and PM2.5 particle, nitrogen oxide and oxysulfide are all reduced to pole low-level, has effectively purified air in car, protects the respiratory health of occupant.
Detailed description of the invention
The present invention is described screen pack of the present invention by following embodiment.
Embodiment 1
Catalyst is prepared by infusion process, carrier is zeolite, in the skeleton structure of zeolite, Si/ (Si+Al+P) mol ratio is 0.20, active component is the mixture of titanium dioxide and cerium oxide, and the mol ratio of Ti and Ce is 4:3, and described titanium dioxide is anatase crystal, described active component weight content is in the catalyst 5%, co-catalyst is silver and di-iron trioxide, and the mol ratio of Ag and Fe is 2:5, and described co-catalyst weight content is in the catalyst 2%.
Described screen pack comprises frame, and frame internal fixtion has at least 6 layers of network structure, and described network structure from inside to outside laminated structure has woven wire supporting layer, porous fiber layer, active carbon layer, catalyst layer, porous fiber layer and woven wire supporting layer.Test when PM2.5 is 300, described contaminated air is passed through described screen pack with the speed of 1 meter per second close to respiration rate, test the air through filter screen process, its PM2.5 value is 18, the content of nitrogen oxide and oxysulfide all drops to less than 0.1 milligram/cubic metre, is far smaller than the requirement of the Indoor Air Quality standards that GB/T18883-2002 specifies.
Comparative example 1
The carrier of embodiment 1 is replaced with active carbon, and all the other conditions are constant, and PM2.5 value is 52, and the value of nitrogen oxide and oxysulfide is all higher than 1 milligram/cubic metre.
Comparative example 2
The Ce of embodiment 1 is replaced with La, and all the other conditions are constant, and PM2.5 value is 49, and the value of nitrogen oxide and oxysulfide is all higher than 1 milligram/cubic metre.
Comparative example 3
The Fe of embodiment 1 is replaced with Co, and all the other conditions are constant, and PM2.5 value is 36, and the value of nitrogen oxide and oxysulfide is all higher than 1 milligram/cubic metre.
Above-described embodiment and comparative example illustrate, there is specific contact between several component of catalyst that screen pack of the present invention adopts, omit or replace wherein one or more, all can not reach the certain effects of the application, prove to which create cooperative effect.
Applicant states, the present invention illustrates screen pack of the present invention by above-described embodiment, but the present invention is not limited to above-mentioned screen pack, does not namely mean that the present invention must rely on above-mentioned detailed catalysts and filter screen could be implemented.Person of ordinary skill in the field should understand, any improvement in the present invention, to equivalence replacement and the interpolation of auxiliary element, the concrete way choice etc. of each raw material of product of the present invention, all drops within protection scope of the present invention and open scope.
Claims (5)
1. prevent and treat the screen pack of haze for one kind, described screen pack comprises frame, frame internal fixtion has at least 6 layers of network structure, described network structure from inside to outside laminated structure has woven wire supporting layer, porous fiber layer, active carbon layer, catalyst layer, porous fiber layer and woven wire supporting layer, described catalyst layer is made up of grained catalyst, it comprises carrier, active component and co-catalyst, it is characterized in that
Described carrier is zeolite, and in the skeleton structure of zeolite, Si/ (Si+Al+P) mol ratio is 0.20;
Described active component is the mixture of titanium dioxide and cerium oxide, and the mol ratio of Ti and Ce is 4:3, and described titanium dioxide is anatase crystal, and described active component weight content is in the catalyst 0.3%-10%;
Described co-catalyst is silver and di-iron trioxide, and the mol ratio of Ag and Fe is 2:5, and described co-catalyst weight content is in the catalyst 0.3%-6%.
2. screen pack as claimed in claim 1, it is characterized in that, described active component weight content is in the catalyst 0.5-%-8%.
3. screen pack as claimed in claim 2, it is characterized in that, described active component weight content is in the catalyst 2%-5%.
4. screen pack as claimed in claim 1, it is characterized in that, described co-catalyst weight content is in the catalyst 0.5%-5%.
5. screen pack as claimed in claim 1, it is characterized in that, the weight ratio of described active component and co-catalyst is 5:1 ~ 2:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510779951.8A CN105289126A (en) | 2015-11-13 | 2015-11-13 | Filter screen used for preventing and controlling fog and haze |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510779951.8A CN105289126A (en) | 2015-11-13 | 2015-11-13 | Filter screen used for preventing and controlling fog and haze |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105289126A true CN105289126A (en) | 2016-02-03 |
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|---|---|---|---|
| CN201510779951.8A Pending CN105289126A (en) | 2015-11-13 | 2015-11-13 | Filter screen used for preventing and controlling fog and haze |
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| CN (1) | CN105289126A (en) |
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| US20140044636A1 (en) * | 2012-08-09 | 2014-02-13 | Exxonmobil Research And Engineering Company | CATALYTIC REDUCTION OF NOx WITH HIGH ACTIVITY CATALYSTS |
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2015
- 2015-11-13 CN CN201510779951.8A patent/CN105289126A/en active Pending
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|---|---|---|---|---|
| CN2650849Y (en) * | 2003-06-12 | 2004-10-27 | 鸿富锦精密工业（深圳）有限公司 | Air filter |
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| CN103252135A (en) * | 2013-05-08 | 2013-08-21 | 安徽省元琛环保科技有限公司 | Dedusting and denitration integrated functional filter material and preparation method thereof |
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Application publication date: 20160203 |