CN105251153A - Respiratory mask with filtering and purifying functions - Google Patents
Respiratory mask with filtering and purifying functions Download PDFInfo
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- CN105251153A CN105251153A CN201510781321.4A CN201510781321A CN105251153A CN 105251153 A CN105251153 A CN 105251153A CN 201510781321 A CN201510781321 A CN 201510781321A CN 105251153 A CN105251153 A CN 105251153A
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Abstract
The invention discloses a respiratory mask with filtering and purifying functions. The respiratory mask is composed of a mask and a canister, wherein the mask comprises a mask body, eye windows, an interphone, a breathing valve and a fastener. The respiratory mask is characterized by further comprising a double-layer breathing valve or a multi-layer breathing valve consisting of two or more breathing valve plates which are in series connected and combined with one another; grids are arranged between the breathing valve plates and between the breathing valve plates and the mask body; a gas inlet is formed in the bottom of the mask body; the gas inlet is connected with the canister through a gas guide tube; and the canister comprises a first adsorption part, a catalytic part and a second adsorption part which are superposed front and rear. By virtue of a catalyst, benzene, methylbenzene, dimethylbenzene, ethylbenzene, styrene, formaldehyde, acetaldehyde and acraldehyde in air in a building can be reduced to be less than 0.05 milligram/cubic meter; and meanwhile, content of microorganisms in recycle gas is remarkably 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 carrier is the mixture of zeolite and manganese dioxide nano-rod, and in the skeleton structure of zeolite, Si/ (Si+Al+P) mol ratio is 0.20, and the mass ratio of zeolite and manganese dioxide is 1:2-2:1;
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%.
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 is by choosing specific zeolite and manganese dioxide nano-rod as carrier, and the Ti/Ce choosing special ratios is as active component, Ag/Fe is 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, catalyst is prepared by infusion process, carrier is zeolite and manganese dioxide nano-rod, the mass ratio of the two is 1:1, 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, 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, the mol ratio of Ag and Fe is 2:5, described co-catalyst weight content is in the catalyst 2%.
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 3, 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 manganese dioxide nano-rod, and all the other conditions are constant, and its PM2.5 value is 41, and benzene,toluene,xylene, ethylbenzene, styrene, formaldehyde, acetaldehyde, level of acrolein are more than 0.1 milligram/cubic metre.
Comparative example 2
The Ce of embodiment 1 is replaced with La, and all the other conditions are constant, and its PM2.5 value is 44, and benzene,toluene,xylene, ethylbenzene, styrene, formaldehyde, acetaldehyde, level of acrolein are more than 0.1 milligram/cubic metre.
Comparative example 3
The Fe of embodiment 1 is replaced with Co, and all the other conditions are constant, and its PM2.5 value is 48, and benzene,toluene,xylene, ethylbenzene, styrene, formaldehyde, acetaldehyde, level of acrolein are more than 0.1 milligram/cubic metre.
Comparative example 4
The carrier of embodiment 1 is replaced with active carbon, and all the other conditions are constant, and its PM2.5 value is 32, and benzene,toluene,xylene, ethylbenzene, styrene, formaldehyde, acetaldehyde, level of acrolein are more than 0.1 milligram/cubic metre.
Comparative example 5
The carrier of embodiment 1 is all replaced with zeolite of the present invention, and all the other conditions are constant, and its PM2.5 value is 47, 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, described catalyst comprises carrier, active component and co-catalyst, described carrier is the mixture of zeolite and manganese dioxide nano-rod, in the skeleton structure of zeolite, Si/ (Si+Al+P) mol ratio is 0.20, and the mass ratio of zeolite and manganese dioxide is 1:2-2:1;
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%;
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 |
|---|---|---|---|
| CN201510781321.4A CN105251153A (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 |
|---|---|---|---|
| CN201510781321.4A CN105251153A (en) | 2015-11-13 | 2015-11-13 | Respiratory mask with filtering and purifying functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105251153A true CN105251153A (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510781321.4A Withdrawn CN105251153A (en) | 2015-11-13 | 2015-11-13 | Respiratory mask with filtering and purifying functions |
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| CN (1) | CN105251153A (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 |
| CN101301605A (en) * | 2008-01-22 | 2008-11-12 | 成都理工大学 | Load type nanocomposite oxide material for purifying environment and preparation thereof |
| CN202342720U (en) * | 2011-10-19 | 2012-07-25 | 中国石油化工股份有限公司 | Half-face gas mask |
-
2015
- 2015-11-13 CN CN201510781321.4A patent/CN105251153A/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 |
| CN101301605A (en) * | 2008-01-22 | 2008-11-12 | 成都理工大学 | Load type nanocomposite oxide material for purifying environment and preparation thereof |
| CN202342720U (en) * | 2011-10-19 | 2012-07-25 | 中国石油化工股份有限公司 | Half-face gas mask |
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Application publication date: 20160120 |