CN105396232A - Canister for gas mask - Google Patents

Canister for gas mask Download PDF

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Publication number
CN105396232A
CN105396232A CN201510780047.9A CN201510780047A CN105396232A CN 105396232 A CN105396232 A CN 105396232A CN 201510780047 A CN201510780047 A CN 201510780047A CN 105396232 A CN105396232 A CN 105396232A
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CN
China
Prior art keywords
catalyst
canister
adsorption
layer
adsorption element
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.)
Withdrawn
Application number
CN201510780047.9A
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Chinese (zh)
Inventor
沈秋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuxi Qingyang Machinery Manufacturing Co Ltd
Original Assignee
Wuxi Qingyang Machinery Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wuxi Qingyang Machinery Manufacturing Co Ltd filed Critical Wuxi Qingyang Machinery Manufacturing Co Ltd
Priority to CN201510780047.9A priority Critical patent/CN105396232A/en
Publication of CN105396232A publication Critical patent/CN105396232A/en
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B23/00—Filters for breathing-protection purposes
    • A62B23/02—Filters for breathing-protection purposes for respirators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/54—Nitrogen compounds
    • B01D53/56—Nitrogen oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/62—Carbon oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B01J23/44—Palladium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/48—Silver or gold

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Biomedical Technology (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Catalysts (AREA)

Abstract

The invention discloses a canister with a purifying function. The canister comprises a first adsorption component, a catalyst component and a second adsorption component which are overlapped front and back. The removal rate of benzene, methylbenzene, xylene, ethylbenzene, styrene, formaldehyde, acetaldehyde and acrolein of air in a building reaches below 0.05 mg/m<3> by means of catalysts, and the content of microorganisms in circulating air is reduced obviously.

Description

A kind of breathing mask canister
Technical field
The present invention relates to technical field of air purification, be specifically related to a kind of breathing mask canister.
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 the canister proposing a kind of easy band purification function; particularly a kind of without particulate filter canister; it adopts special-purpose catalyst; 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,xylene, ethylbenzene, styrene, formaldehyde, acetaldehyde, methacrylaldehyde etc.; carry out decomposing, being oxidized or/and adsorb; bactericidal purifying is carried out to air; guarantee filtered air is clean, protects the healthy of operator.
For reaching this object, the present invention by the following technical solutions:
With a canister for purification function, it the first adsorption element, catalytic member and the second adsorption element of superposing before and after comprising.
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.
Canister of the present invention is used for breathing mask, and 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.
Canister 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 canister of the present invention and special-purpose catalyst thereof by following embodiment.
Embodiment 1
With a canister for purification function, it the first adsorption element, catalytic member and the second adsorption element of superposing before and after comprising.
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 canister of the present invention, its haze PM2.5 index is 13, 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 51, 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 46, 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 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 canister 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 canister 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. the canister with purification function, it the first adsorption element, catalytic member and the second adsorption element of superposing before and after comprising, is characterized in that,
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.
CN201510780047.9A 2015-11-13 2015-11-13 Canister for gas mask Withdrawn CN105396232A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510780047.9A CN105396232A (en) 2015-11-13 2015-11-13 Canister for gas mask

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510780047.9A CN105396232A (en) 2015-11-13 2015-11-13 Canister for gas mask

Publications (1)

Publication Number Publication Date
CN105396232A true CN105396232A (en) 2016-03-16

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Family Applications (1)

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CN201510780047.9A Withdrawn CN105396232A (en) 2015-11-13 2015-11-13 Canister for gas mask

Country Status (1)

Country Link
CN (1) CN105396232A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN203029858U (en) * 2012-11-30 2013-07-03 中国人民武装警察部队学院 Poison gas personal respiratory protection canister with compound filtering material layer
CN104422019A (en) * 2013-08-22 2015-03-18 袁满雪 Complex multi-functional indoor air pollution control unit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN203029858U (en) * 2012-11-30 2013-07-03 中国人民武装警察部队学院 Poison gas personal respiratory protection canister with compound filtering material layer
CN104422019A (en) * 2013-08-22 2015-03-18 袁满雪 Complex multi-functional indoor air pollution control unit

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Application publication date: 20160316