CN105251273A - Filter screen for preventing and treating haze - Google Patents
Filter screen for preventing and treating haze Download PDFInfo
- Publication number
- CN105251273A CN105251273A CN201510779219.0A CN201510779219A CN105251273A CN 105251273 A CN105251273 A CN 105251273A CN 201510779219 A CN201510779219 A CN 201510779219A CN 105251273 A CN105251273 A CN 105251273A
- Authority
- CN
- China
- Prior art keywords
- catalyst
- layer
- screen pack
- active component
- weight content
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention discloses a filter screen which comprises a frame. At least six layers of net structures are fixed in the frame, according to each net structure, a metal wire mesh supporting layer, a porous fiber layer, an activated carbon layer, a catalyst layer, a porous fiber layer and a metal wire mesh supporting layer are sequentially stacked from inside to outside, and the catalyst layers are composed of a powdery catalyst, and comprise carriers, active components and promoter. After haze air passes through the filter screen, PM2.5 particles, nitric oxides and oxysulfide are all reduced to the extremely low level, air in a car is effectively purified, and respiratory system health of people in the car 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 the mixture of cerium oxide nano cube and γ-manganese dioxide nano pipe, and its mixing quality is than being 2:1-1:2;
Described active component is molybdenum, zirconium, vanadium and tungsten composite oxides, and its mol ratio is 1:(0.5-2): (0.5-2): (0.5-2), described active component weight content is in the catalyst 0.3%-10%;
Described co-catalyst is silver and anatase titanium dioxide, and the mol ratio of Ag and Ti is 2:5, and described co-catalyst weight content is in the catalyst 0.3%-6%.
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 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.
Described active carbon layer comprises following component:
A) the β type ferrosilite of 20%-60%, shown in described β type ferrosilite is composed as follows:
(x+y)M
(2/n)O·xFe
2O
3·yAl
2O
3·zSiO
2·wH
2O
In formula, M represents cation, and n is the valence of cation M, x+y+z=1, z/x to be 100-220, w be more than 1 positive integer;
B) V doped with Ce of 10%-30%
2o
5/ (MoO
3)
x(WO
3)
1-xwith TiO
2mixture, Ce:V
2o
5/ (MoO
3)
x(WO
3)
1-x: TiO
2mol ratio be 0.25:1:2, and described titanium dioxide is anatase crystal, and described active component weight content is in the composition 0.3%-10%, and described x is 0.1-0.5;
C) active carbon of surplus
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 cerium oxide nano cube and γ-manganese dioxide nano pipe as carrier, and choose the molybdenum of special ratios, zirconium, vanadium and tungsten composite oxides as active component, silver and anatase titanium dioxide, as co-catalyst, make 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
Prepare catalyst by infusion process, described carrier is the mixture of cerium oxide nano cube and γ-manganese dioxide nano pipe, and its mixing quality is than being 2:1;
Described active component is molybdenum, zirconium, vanadium and tungsten composite oxides, and its mol ratio is 1:1:1:1, and described active component weight content is in the catalyst 2%;
Described co-catalyst is silver and anatase titanium dioxide, and the mol ratio of Ag and Ti is 2:5, and described co-catalyst weight content is in the catalyst 1%.
By being simply mixed to get active carbon layer, described activated carbon layer comprises following composition:
A) the β type ferrosilite of 40%, shown in described β type ferrosilite is composed as follows:
(x+y)M
(2/n)O·xFe
2O
3·yAl
2O
3·zSiO
2·wH
2O
In formula, M represents Ce, and n is the valence of cation M, and x+y+z=1, z/x are 150, w is 2;
B) V doped with Ce of 30%
2o
5/ (MoO
3)
x(WO
3)
1-xwith TiO
2mixture, Ce:V
2o
5/ (MoO
3)
x(WO
3)
1-x: TiO
2mol ratio be 0.25:1:2, and described titanium dioxide is anatase crystal, and described active component weight content is in the composition 0.3%-10%, and described x is 0.1-0.5;
C) active carbon of surplus.
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 V of embodiment 1 is replaced with La, and all the other conditions are constant, and the PM2.5 value after 1 hour is 45, and the value of nitrogen oxide and oxysulfide is all higher than 1 milligram/cubic metre.
Comparative example 3
The Mo of embodiment 1 is replaced with Co, and all the other conditions are constant, and the PM2.5 value after 1 hour is 38, and the value of nitrogen oxide and oxysulfide is all higher than 1 milligram/cubic metre.
Comparative example 4
Carrier is used alone cerium oxide nano cube, and do not use γ-manganese dioxide nano pipe, all the other conditions are constant, and the value of nitrogen oxide and oxysulfide is all higher than 1 milligram/cubic metre, and after 1 hour, PM2.5 value is 39.
Comparative example 5
Carrier is used alone γ-manganese dioxide nano pipe, does not use cerium oxide nano cube, and all the other conditions are constant, and after 1 hour, PM2.5 value is 39, 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 the mixture of cerium oxide nano cube and γ-manganese dioxide nano pipe, and its mixing quality is than being 2:1-1:2;
Described active component is molybdenum, zirconium, vanadium and tungsten composite oxides, and its mol ratio is 1:(0.5-2): (0.5-2): (0.5-2), described active component weight content is in the catalyst 0.3%-10%;
Described co-catalyst is silver and anatase titanium dioxide, and the mol ratio of Ag and Ti is 2:5, and described co-catalyst weight content is in the catalyst 0.3%-6%;
Described active carbon layer comprises following component:
A) the β type ferrosilite of 20%-60%, shown in described β type ferrosilite is composed as follows:
(x+y)M
(2/n)O·xFe
2O
3·yAl
2O
3·zSiO
2·wH
2O
In formula, M represents cation, and n is the valence of cation M, x+y+z=1, z/x to be 100-220, w be more than 1 positive integer;
B) V doped with Ce of 10%-30%
2o
5/ (MoO
3)
x(WO
3)
1-xwith TiO
2mixture, Ce:V
2o
5/ (MoO
3)
x(WO
3)
1-x: TiO
2mol ratio be 0.25:1:2, and described titanium dioxide is anatase crystal, and described active component weight content is in the composition 0.3%-10%, and described x is 0.1-0.5;
C) active carbon of surplus.
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 |
|---|---|---|---|
| CN201510779219.0A CN105251273A (en) | 2015-11-13 | 2015-11-13 | Filter screen for preventing and treating haze |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510779219.0A CN105251273A (en) | 2015-11-13 | 2015-11-13 | Filter screen for preventing and treating haze |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105251273A true CN105251273A (en) | 2016-01-20 |
Family
ID=55091372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510779219.0A Pending CN105251273A (en) | 2015-11-13 | 2015-11-13 | Filter screen for preventing and treating haze |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105251273A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113145116A (en) * | 2021-01-20 | 2021-07-23 | 华东理工大学 | Integral TS-1 catalyst carrier and preparation and application thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2650849Y (en) * | 2003-06-12 | 2004-10-27 | 鸿富锦精密工业（深圳）有限公司 | Air filter |
| CN1772374A (en) * | 2004-11-08 | 2006-05-17 | 株式会社日本触媒 | Catalyst for processing waste gas and method for processing waste gas thereof |
| CN201061628Y (en) * | 2007-07-09 | 2008-05-21 | 钟喜生 | Nano TiO2 polarization fibre air purification net |
| CN101623637A (en) * | 2009-07-23 | 2010-01-13 | 天津大学 | Catalyst Au/MnOx-CeO2 used for preferential oxidation of carbon monoxide and preparation method thereof |
| CN102764643A (en) * | 2012-07-16 | 2012-11-07 | 中国科学院生态环境研究中心 | Vanadium-titanium oxide catalyst, and preparation method and application thereof |
| 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 |
| CN103534210A (en) * | 2011-05-17 | 2014-01-22 | 东曹株式会社 | Beta-type iron silicate composition and method for reducing nitrogen oxides |
| US20140044636A1 (en) * | 2012-08-09 | 2014-02-13 | Exxonmobil Research And Engineering Company | CATALYTIC REDUCTION OF NOx WITH HIGH ACTIVITY CATALYSTS |
-
2015
- 2015-11-13 CN CN201510779219.0A patent/CN105251273A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2650849Y (en) * | 2003-06-12 | 2004-10-27 | 鸿富锦精密工业（深圳）有限公司 | Air filter |
| CN1772374A (en) * | 2004-11-08 | 2006-05-17 | 株式会社日本触媒 | Catalyst for processing waste gas and method for processing waste gas thereof |
| CN201061628Y (en) * | 2007-07-09 | 2008-05-21 | 钟喜生 | Nano TiO2 polarization fibre air purification net |
| CN101623637A (en) * | 2009-07-23 | 2010-01-13 | 天津大学 | Catalyst Au/MnOx-CeO2 used for preferential oxidation of carbon monoxide and preparation method thereof |
| CN103534210A (en) * | 2011-05-17 | 2014-01-22 | 东曹株式会社 | Beta-type iron silicate composition and method for reducing nitrogen oxides |
| CN102764643A (en) * | 2012-07-16 | 2012-11-07 | 中国科学院生态环境研究中心 | Vanadium-titanium oxide catalyst, and preparation method and application thereof |
| US20140044636A1 (en) * | 2012-08-09 | 2014-02-13 | Exxonmobil Research And Engineering Company | CATALYTIC REDUCTION OF NOx WITH HIGH ACTIVITY CATALYSTS |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113145116A (en) * | 2021-01-20 | 2021-07-23 | 华东理工大学 | Integral TS-1 catalyst carrier and preparation and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105214394A (en) | A kind of screen pack preventing and treating haze | |
| CN105233675A (en) | Filter screen for preventing and controlling haze | |
| CN105251273A (en) | Filter screen for preventing and treating haze | |
| CN105289127A (en) | Filter screen used for preventing and controlling fog and haze | |
| CN105327566A (en) | Air purifier for preventing and treating haze | |
| CN105289128A (en) | Filter screen used for preventing and controlling fog and haze | |
| CN105251346A (en) | Filter screen for preventing and treating haze | |
| CN105435541A (en) | Filtering mesh capable of preventing and controlling haze | |
| CN105289125A (en) | Filter screen | |
| CN105289126A (en) | Filter screen used for preventing and controlling fog and haze | |
| CN105233676A (en) | Filter screen for preventing and controlling haze | |
| CN105233581A (en) | Filter screen capable of controlling haze | |
| CN105212359A (en) | A kind of mouth mask preventing and treating haze | |
| CN105251342A (en) | Air conditioner filter for preventing and treating haze | |
| CN105457411A (en) | Air-conditioning filter for control of haze | |
| CN105344241A (en) | An air-conditioning filter cleaner for control of fog and haze | |
| CN105435629A (en) | Air condition filter for preventing and controlling haze | |
| CN105214485A (en) | A kind of air-conditioning filter cleaner preventing and treating haze | |
| CN105233680A (en) | Air-conditioning filter capable of controlling haze | |
| CN105233677A (en) | Air-conditioning filter for preventing and controlling haze | |
| CN105251294A (en) | Air conditioner filter for preventing and treating haze | |
| CN105413323A (en) | Air conditioner filter for preventing and controlling haze | |
| CN105413451A (en) | Air conditioner filter for preventing and controlling haze | |
| CN105597434A (en) | Filter screen for preventing and treating haze | |
| CN105344243A (en) | Air purifier for simultaneous prevention and control of haze and sulfur oxide and nitrogen oxide contamination |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160120 |
|
| WD01 | Invention patent application deemed withdrawn after publication |