CN105288887A - Respiratory mask with filtering and purifying functions - Google Patents
Respiratory mask with filtering and purifying functions Download PDFInfo
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- CN105288887A CN105288887A CN201510779841.1A CN201510779841A CN105288887A CN 105288887 A CN105288887 A CN 105288887A CN 201510779841 A CN201510779841 A CN 201510779841A CN 105288887 A CN105288887 A CN 105288887A
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- catalyst
- canister
- layer
- adsorption
- mask body
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Abstract
A respiratory mask with the filtering and purifying functions is composed of a mask body and a canister. The mask body comprises a main mask body, eye windows, an interphone, a respiratory valve and a fastener. The respiratory mask is characterized by further comprising a double-layer exhalation valve or a multi-layer exhalation valve composed of two or more exhalation valve plates connected in series to be combined; grids are arranged between the exhalation valve plates and between the exhalation valve plates and the main mask body; an air inlet is formed in the bottom of the mask body and connected with the canister through an air guide pipe; and the canister comprises a first adsorption component, a catalyst component and a second adsorption component which are stacked front and back. After removing is carried out, the concentration of benzene, toluene, xylene, ethylbenzene, styrene, formaldehyde, acetaldehyde and acrolein in air in a building can be smaller than 0.05 mg per cubic meter through the catalyst, and the content of microorganisms in circulation gas is obviously reduced.
Description
Technical field
The present invention relates to technical field of air purification, be specifically related to a kind of breathing mask possessing filtration and purification function.
Background technology
Breathing mask is as personal protection equipment, and for the respiratory apparatus to personnel, eyes and skin of face provide effective protection.Mask by face shield, wireway and canister composition, face shield can, directly with canister or filter malicious box and be connected and use, be called direct-connected; Or with wireway and canister with filter malicious box and be connected and use, be called catheter type.Gas mask can select the canister of various model respectively according to requirement of shelter, be applied in chemical industry, warehouse, scientific research, various poisonous, harmful operating environment.
Common breathing mask is made up of face shield and canister (or filter element).Face shield comprises the parts such as cover body, eye window, communication, respiratory valve and headband (or helmet).Canister is in order to purify toxic gas, and these 2 kinds of materials also can be mixed and made into filter, be assembled into filter element by in-built filter poison layer and adsorbent.Lighter (about 200 grams) canister or filter element can directly be connected on face shield, and heavier canister is connected with face shield by wireway.
Canister is generally cylindrical, is made up of metal or plastics, and surperficial overbrushing is with alkali prevention paint.Canister divides has particulate filter and without particulate filter two kinds, little without particulate filter canister resistance, is more conducive to prolonged labor operating environment, is generally used for the industry that petrochemical industry and steel-making coal etc. are applicable to prolonged labor operation protection.There is particulate filter canister can filtering toxic smoke, malicious mist, biological warfare agent and radioaerosol; Can toxic agent steam effectively in absorbed air without particulate filter canister.Be placed in the air draft of ventilation or suction apparatus as scheduled or gas outlet.For breathing mask be belong to individual protective articles, personnel wear a gas mask breathe time, the external world be contaminted air through canister filter become clean air for personnel breathe.Filter element has filter paper, glass fibre or other synthetic materials.Be through the active carbon of process in filling layer, be used for adsorbing for different poison gas.
In various dust industry, its breathing mask structure used is simple, and it generally adopts direct-connected breathing mask, and its filter element (canister) only comprises filter course, with Chalk-dust filtering.But in actual application, produce the environment of dust, generally can produce various chemical substance, pungent peculiar smell can be produced, cause healthy.Such as at paper industry, its operating environment has very large dust, and have fibre object to rot and various dusty gas that papermaking operation produces, but its breathing mask adopted only possesses filtering function simultaneously, not there is filtration, eliminate the effect of pernicious gas, the healthy of operator can be damaged.
Summary of the invention
The object of the invention is to propose a kind of breathing mask possessing filtration and purification function, it adopts specific expiration and air suction structure, coordinate the canister without particulate filter, under the prerequisite realizing filtering function, catalysis can also be carried out to air, by the harmful substance in air, such as nitrogen oxide, oxycarbide, organic odor contamination such as benzene, toluene, dimethylbenzene, ethylbenzene, styrene, formaldehyde, acetaldehyde, methacrylaldehyde etc., decompose, oxidation is or/and absorption, bactericidal purifying is carried out to air, guarantee filtered air is clean, protect the healthy of operator.
For reaching this object, the present invention by the following technical solutions:
Possess the breathing mask filtered with purification function, be made up of face shield and canister; Face shield comprises cover body, eye window, communication, respiratory valve and securing member, it is characterized in that, also comprises the double-deck outlet valve or multilayer outlet valve that are made up of the expiration valve block of two or more mutual tandem compounds; Grid is provided with between described expiration valve block and between expiration valve block and cover body, the bottom of described mask body is provided with air inlet, described air inlet is connected with canister by wireway, the first adsorption element superposed before and after described canister comprises, catalytic member and the second adsorption element.
Described first adsorption element is provided with fibrous filter layer, and described fibrous filter layer is superimposed with paper fiber thing filter course and ultra-fine fibre glass thing filter course.
Described catalytic member is provided with catalyst layer, and described catalyst comprises carrier, active component and co-catalyst.Described carrier is β zeolite, and in the skeleton structure of zeolite, Si/ (Si+Al+P) mol ratio is 0.30;
Described active component is the V doped with Sb
2o
5/ (MoO
3)
x(WO
3)
1-xwith TiO
2mixture, Sb: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 catalyst 0.3%-10%, and described x is 0.1-0.5;
Described co-catalyst is silver and palladium, and silver is 2:5 with the mol ratio of palladium, 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.
Described second adsorption element is provided with adsorption layer, and described adsorption layer is made up of the nano titanium oxide of active carbon and Ag-bearing, and its mixing quality such as, than being 5:1-2:1,4.5:1,4:1,3.5:1,3:1 etc.
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.
By breathing mask of the present invention, the air of suction enters the first adsorption element, in the first adsorption element, successively through the filtration of paper fiber layer and ultra-fine fibre glass layer, filters the particle in air and macromolecular substances.
Air after filtering enters catalytic member subsequently, and in catalytic member, the organic pollution in air, such as formaldehyde etc., catalyzed oxidation, becomes harmless or be easy to other organic matters of absorbing.
Air after catalysis, enters the second adsorption element.In air, the organic pollution of catalyzed oxidation is absorbed by active carbon, and is distributed in the silver in active carbon, kills virus to the microorganism in air, thus reduces the content of bacterium.
Breathing mask special-purpose catalyst of the present invention by choosing specific β zeolite as carrier, and chooses the V doped with Sb of special ratios
2o
5/ (MoO
3)
x(WO
3)
1-xwith TiO
2mixture is as active component, silver and palladium are as co-catalyst, this catalyst is made to produce cooperative effect, make the removal of this canister to benzene in air, toluene, dimethylbenzene, ethylbenzene, styrene, formaldehyde, acetaldehyde, methacrylaldehyde reach less than 0.05 milligram/cubic metre, significantly reduce the content of microorganisms in circulating air simultaneously.
Detailed description of the invention
The present invention is described breathing mask of the present invention and special-purpose catalyst thereof by following embodiment.
Embodiment 1
Possess the breathing mask filtered with purification function, be made up of face shield and canister; Face shield comprises cover body, eye window, communication, respiratory valve and securing member, it is characterized in that, also comprises the double-deck outlet valve or multilayer outlet valve that are made up of the expiration valve block of two or more mutual tandem compounds; Grid is provided with between described expiration valve block and between expiration valve block and cover body, the bottom of described mask body is provided with air inlet, described air inlet is connected with canister by wireway, the first adsorption element superposed before and after described canister comprises, catalytic member and the second adsorption element.
Described first adsorption element is provided with fibrous filter layer, and described fibrous filter layer sequencing is superimposed with paper fiber thing filter course and ultra-fine fibre glass thing filter course.。
Described catalytic member is provided with catalyst layer, prepares catalyst by infusion process, and carrier is β zeolite, and in the skeleton structure of zeolite, Si/ (Si+Al+P) mol ratio is 0.30, and described active component is the V doped with Sb
2o
5/ (MoO
3)
x(WO
3)
1-xwith TiO
2mixture, Sb: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 catalyst 4%, and described x is 0.25;
Described co-catalyst is silver and palladium, and silver is 2:5 with the mol ratio of palladium, and described co-catalyst weight content is in the catalyst 1%.
Described second adsorption layer is made up of the nano titanium oxide of active carbon and Ag-bearing, and its mixing quality is than being 3:1.
For testing its purification function, in new wind, pass into haze PM2.5 index is the air of 300, and makes the benzene,toluene,xylene of indoor gas, ethylbenzene, styrene, formaldehyde, acetaldehyde, level of acrolein reach 10 milligrams/cubic metre.By described gas by breathing mask of the present invention, its haze PM2.5 index is 7, and benzene,toluene,xylene, ethylbenzene, styrene, formaldehyde, acetaldehyde, level of acrolein reach less than 0.05 milligram/cubic metre.
Comparative example 1
The carrier of embodiment 1 is replaced with alundum (Al2O3), and all the other conditions are constant, and its PM2.5 value is 31, and benzene,toluene,xylene, ethylbenzene, styrene, formaldehyde, acetaldehyde, level of acrolein are more than 0.1 milligram/cubic metre.
Comparative example 2
The Sb of embodiment 1 is replaced with La, and all the other conditions are constant, and its PM2.5 value is 36, and benzene,toluene,xylene, ethylbenzene, styrene, formaldehyde, acetaldehyde, level of acrolein are more than 0.1 milligram/cubic metre.
Comparative example 3
The palladium of embodiment 1 is replaced with Co, and all the other conditions are constant, and its PM2.5 value is 27, and benzene,toluene,xylene, ethylbenzene, styrene, formaldehyde, acetaldehyde, level of acrolein are more than 0.1 milligram/cubic metre.
Above-described embodiment and comparative example explanation, specific contact is there is between several component of breathing mask special-purpose catalyst of the present invention and between catalyst carrier, 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 breathing mask of the present invention and special-purpose catalyst thereof by above-described embodiment, but the present invention is not limited to above-mentioned catalyst, does not namely mean that the present invention must rely on above-mentioned detailed catalysts and could implement.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 (1)
1. possess the breathing mask filtered with purification function, be made up of face shield and canister; Face shield comprises cover body, eye window, communication, respiratory valve and securing member, it is characterized in that, also comprises the double-deck outlet valve or multilayer outlet valve that are made up of the expiration valve block of two or more mutual tandem compounds; Grid is provided with between described expiration valve block and between expiration valve block and cover body, the bottom of described mask body is provided with air inlet, described air inlet is connected with canister by wireway, the first adsorption element superposed before and after described canister comprises, catalytic member and the second adsorption element
Described first adsorption element is provided with fibrous filter layer, and described fibrous filter layer is superimposed with paper fiber thing filter course and ultra-fine fibre glass thing filter course, it is characterized in that,
Described catalytic member is provided with catalyst layer, and described catalyst comprises carrier, active component and co-catalyst, and described carrier is β zeolite, and in the skeleton structure of zeolite, Si/ (Si+Al+P) mol ratio is 0.30;
Described active component is the V doped with Sb
2o
5/ (MoO
3)
x(WO
3)
1-xwith TiO
2mixture, Sb: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 catalyst 0.3%-10%, and described x is 0.1-0.5;
Described co-catalyst is silver and palladium, and silver is 2:5 with the mol ratio of palladium, and described co-catalyst weight content is in the catalyst 0.3%-6%;
Described second adsorption filtration adsorption element is provided with adsorption layer, and described adsorption layer is made up of the nano titanium oxide of active carbon and Ag-bearing, and its mixing quality is than being 5:1-2:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510779841.1A CN105288887A (en) | 2015-11-13 | 2015-11-13 | Respiratory mask with filtering and purifying functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510779841.1A CN105288887A (en) | 2015-11-13 | 2015-11-13 | Respiratory mask with filtering and purifying functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105288887A true CN105288887A (en) | 2016-02-03 |
Family
ID=55187129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510779841.1A Withdrawn CN105288887A (en) | 2015-11-13 | 2015-11-13 | Respiratory mask with filtering and purifying functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105288887A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2253218Y (en) * | 1996-01-22 | 1997-04-30 | 广州市天源企业有限公司 | Acousto-optic alarm self-saving mask |
| CN202342720U (en) * | 2011-10-19 | 2012-07-25 | 中国石油化工股份有限公司 | Half-face gas mask |
| CN104422019A (en) * | 2013-08-22 | 2015-03-18 | 袁满雪 | Complex multi-functional indoor air pollution control unit |
-
2015
- 2015-11-13 CN CN201510779841.1A patent/CN105288887A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2253218Y (en) * | 1996-01-22 | 1997-04-30 | 广州市天源企业有限公司 | Acousto-optic alarm self-saving mask |
| CN202342720U (en) * | 2011-10-19 | 2012-07-25 | 中国石油化工股份有限公司 | Half-face gas mask |
| CN104422019A (en) * | 2013-08-22 | 2015-03-18 | 袁满雪 | Complex multi-functional indoor air pollution control unit |
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| PB01 | Publication | ||
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Application publication date: 20160203 |
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| WW01 | Invention patent application withdrawn after publication |