CN106861288A - A kind of compound air purification filtration and compound air purification filter core - Google Patents
A kind of compound air purification filtration and compound air purification filter core Download PDFInfo
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- CN106861288A CN106861288A CN201710151007.7A CN201710151007A CN106861288A CN 106861288 A CN106861288 A CN 106861288A CN 201710151007 A CN201710151007 A CN 201710151007A CN 106861288 A CN106861288 A CN 106861288A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
-
- 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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/068—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
- B32B17/10018—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising only one glass sheet
- B32B17/10027—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising only one glass sheet the glass sheet not being an outer layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
- B32B27/322—Layered products comprising a layer of synthetic resin comprising polyolefins comprising halogenated polyolefins, e.g. PTFE
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/16—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer formed of particles, e.g. chips, powder or granules
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
- B32B9/007—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile comprising carbon, e.g. graphite, composite carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B9/045—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0407—Additives and treatments of the filtering material comprising particulate additives, e.g. adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/702—Hydrocarbons
- B01D2257/7027—Aromatic hydrocarbons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/025—Particulate layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
Abstract
The present invention relates to a kind of compound air purification filtration and compound air purification filter core, the compound air purification filtration ecto-entad includes PTFE filter membranes, HEPA filter layer, adsoption catalysis layer of particulate matter and non-woven fibrous filter layer successively.This compound air purification filtration is compared with existing filtration, by setting PTFE filter membranes and HEPA melt blown filters layer, realize the filtration to Particulate Pollution thing, prolonging service life of filter elements, by setting adsoption catalysis stratum granulosum, the purpose of fast purification gaseous contaminant is reached, and improves service life of the filter core for gaseous contaminant.
Description
Technical field
The present invention relates to technical field of air purification, more particularly to a kind of compound air purification filtration and composite air
Purifying filter element.
Background technology
With the improvement of people ' s living standards, problem of environmental pollution is caused gradually to aggravate.Especially into autumn and winter,
With collective's heating and the discharge of trade waste of compatriots, to result in and be flooded with substantial amounts of particulate matter in environment, cause mist
Haze phenomenon, influence is caused on the air quality in indoor environment.Often collocation has in conventional indoor air purifier device
The middle effect or the melt-blown nonwoven cloth materials of efficient PP of particulate matter function are removed, to be blocked to the particulate matter in indoor environment
Cut, reach the effect of the dust particles and bacterium in removal indoor environment.However, the season taken place frequently for haze, removal
The HEPA filter screens of particulate matter, its dust containing capacity is easy to reach saturation state, causes screen pack to be blocked by dust and fails.
Meanwhile, in numerous indoor pollutants, formaldehyde is one of gas pollutant of most serious, and it is colourless, with strong
Penetrating odor, is defined as strong carcinogenic teratogen by the World Health Organization (WHO).Research shows that the Form aldehyde release cycle is long
Up to three to ten five years.Therefore, in the urgent need to the compound air purification filtration with effectively removal indoor accelerated test and formaldehyde,
Realize the quick effective purification to environment.
The filtration made by compound air purification filtration of the invention can have high dust containing capacity and right
The high adsoption catalysis disposal ability of formaldehyde, while extending the service life of filtration.The filter core can extensive use
In air purifier, air-conditioning, fresh air ventilated purification apparatus, the motor vehicle in filter and factory's pollution environmental improvement.
The content of the invention
The present invention is for the short deficiency of existing clarifier filtration service life, it is proposed that one kind is conducive to significantly improving
The compound air purification filtration of indoor accelerated test and formaldehyde pollution clean-up effect and extension filtration service life and should
With its filter core.
The invention provides a kind of compound air purification filtration for removing Particulate Pollution thing, its ecto-entad is successively
Including PTFE filter membranes, HEPA filter layer, adsoption catalysis layer of particulate matter and non-woven fibrous filter layer.
According to the present invention, when Particulate Pollution thing is by PTFE filter membranes, the particle diameter particle smaller than PTFE filter membrane leads to
Filtration is crossed, the HEPA melt blown filters layer set after；The particle diameter particle bigger than PTFE filter membrane is preferentially by PTFE mistakes
Filter membrane is intercepted, and plays a part of to intercept particulate matter.The PTFE filter membranes play a part of filtering, and HEPA melt blown filters layer rises
The effect for holding dirt is intercepted and primarily served to filtering, it is effective to increased disposal ability of the whole screen pack to particulate matter.Urge
Changing adsorption particle nitride layer can effectively adsorb the VOC gas componants such as the formaldehyde in indoor environment, and can realize the VOC such as PARA FORMALDEHYDE PRILLS(91,95)
The adsoption catalysis degradation of molecule, increased the service life of filter core.
In any of the above-described technical scheme, it is preferred that wherein described HEPA filter layer is by the melt-blown electret materials of PP or glass
Fibrage is made.
In any of the above-described technical scheme, it is preferred that the PTFE filter membranes are with polytetrafluoroethylene (PTFE) as raw material, by swollen
Form a kind of with micro porous film, membrane aperture scope 0.02um-2.5um, it is preferred that the PTFE filter membranes after changing stretching
Thickness be 1-20um, its grammes per square metre 0.1-10g/m2。
Play intercept and hold dirt effect be efficient HEPA filter paper, can be made up of the melt-blown electret material layers of PP, also may be used
Constituted with by glass layer.Preferably, the filter efficiency of the efficient HEPA filter paper for playing interception function is generally 90%
More than.
According to the present invention, the adsoption catalysis stratum granulosum can be the activated carbon system by being impregnated with room temperature formaldehyde catalyst
Into the room temperature formaldehyde catalyst is MnOx、CeOx、Co3O4、FeOx、CuxO、NiO、TiO2In one or several copolymerization
Thing.
According to the present invention, the adsoption catalysis stratum granulosum can also be made up of the activated carbon for being impregnated with catalyst carrier, catalysis
Room temperature formaldehyde catalyst is loaded with agent carrier.The catalyst carrier is metal oxide MnOx、CeOx、Co3O4、FeOx、
CuxO、NiO、TiO2In one or several copolymer, the room temperature formaldehyde catalyst powder be selected from Pt, Pd, Au, Ru,
One or more in Rh, Ag.
According to the present invention, the adsoption catalysis stratum granulosum can be also made up of room temperature formaldehyde catalyst layer, wherein the catalysis
Agent is metal oxide MnOx、CeOx、Co3O4、FeOx、CuxO、NiO、TiO2In one or several copolymer.
According to the present invention, the adsoption catalysis stratum granulosum is by being loaded with the catalyst carrier structure of room temperature formaldehyde catalyst powder
Into the catalyst carrier is metal oxide MnOx、CeOx、Co3O4、FeOx、CuxO、NiO、TiO2In one or several
Copolymer, the room temperature formaldehyde catalyst powder be selected from Pt, Pd, Au, Ru, Rh, Ag in one or more.
In any of the above-described technical scheme, it is preferred that the above-mentioned activated carbon for being impregnated with catalyst can select CTC (tetrachloros
Change carbon, carbon tetrachloride) activated carbon granule of the clearance more than 60.
In any of the above-described technical scheme, it is preferred that the above-mentioned catalyst carrier for carrying room temperature catalyst powder can be with
It is metal oxide MnOx、CeOx、Co3O4、FeOx、CuxO、NiO、TiO2In one or several copolymer.Especially,
To improve the effect of its indoor air purification, optionally in metal oxide surface depositing noble metal, such as Pt, Pd, Au,
One or more in Ru, Rh, Ag.Beneficial effect using this step is：Can be real in metal oxide surface depositing noble metal
Now to the effect of the VOC Molecular Adsorption catalytic purifications such as Indoor Air Formaldehyde, and extend the service life of filtration.
In any of the above-described technical scheme, it is preferred that above-mentioned activated carbon granule or room temperature are catalyzed class catalyst material
Particle diameter is about in 20~100 mesh.
The fibrous filter layer primarily serve support activated carbon granule nitride layer effect, the base material include non-woven fabrics, PP,
At least one of cellucotton.Its grammes per square metre is in 10~100g/m2。
In any of the above-described technical scheme, it is preferred that the PTFE filter membranes, HEPA filter layer, activated carbon catalysis particle
Nitride layer and non-woven fibrous filter layer are fitted together by hot pressing or gluing technique.
Compound air purification filtration made by the present invention is mainly used for making compound air purification filter core.
The compound air purification filter core, including the compound air purification filtering knot as described in above-mentioned any one technical scheme
Structure, compound air purification filter core compound air purification filtration as described in single or multiple lift is made.
In any of the above-described technical scheme, it is preferred that the compound air purification filtration is shaped to ripple to be folded
The mode of shape wave is set, bond frame it is fixed-type, the compound air purification filtration be made into tabular, cylindrical shape,
The form of semicircle shape, convex-shaped.
Compound air purification filtration of the present invention and the filter core including it are relative to traditional filter screen structure
With significant advantage：
1. compound air purification filter core according to embodiments of the present invention is by pre-setting PTFE filter membranes, and it is right to realize
The filtration of the Particulate Pollution thing molecule in indoor environment.
2. play a part of aided filter interception and primarily serve to hold dirt by setting HEPA melt blown filters layer, it is effective
Disposal ability of the whole screen pack to particulate matter is increased, the service life of filter core is extended.
3. combined filtration structure according to embodiments of the present invention is by setting adsoption catalysis stratum granulosum, and its grain diameter is relative
The particle of plain gauze reduces a lot, improves the contact area of whole adsoption catalysis stratum granulosum and gaseous contaminant, reaches fast
The purpose of fast purifying air pollution thing, catalytic active component thereon increased use longevity of the filtration for gaseous contaminant
Life.
4. compound air purification filtration according to embodiments of the present invention can be realized quickly and efficiently removing first simultaneously
The toxic and harmfuls such as aldehyde, benzene, TVOC, the function of the fine particulates in purify air largely facilitates raising to air
Clean-up effect.
Brief description of the drawings
Fig. 1 is the structural representation of one embodiment of compound air purification filtration of the invention；
Wherein ecto-entad is followed successively by：
1st, PTFE filter membranes 2, HEPA filter layer 3, adsoption catalysis layer of particulate matter 4, non-woven fibrous filter layer
Specific embodiment
Principle of the invention and feature are described below, example is served only for explaining the present invention, is not intended to limit
Determine the scope of the present invention.
Embodiment one
1) from the membrane aperture scope 0.05um of PTFE filter membranes；Thickness is 10.0um, its grammes per square metre 1.0g/m2；
2) HEPA filter layer is from the melt-blown filter paper of PP that filter efficiency is 99.9%；
3) adsoption catalysis stratum granulosum 3 is activated carbon supported metal oxide M nOxComposite construction, by the presoma nitre of Mn
Sour manganese solution mixes with activated carbon, impregnates stir process, impregnates 24h, then at 300 DEG C of roasting 30min, room temperature catalytic oxidation is obtained
Formaldehyde catalyst particle, is thus made adsoption catalysis stratum granulosum 3, wherein, activated carbon selects CTC clearances more than 60% and grain
Footpath is the activated carbon granule of 20-100 mesh, and the mass percent of catalyst component dipping is 5%.
4) non-woven fibrous filter layer choosing is that grammes per square metre is 50g/m2PET material.
5) respectively one layer of addition is fabricated to composite filter paper to above-mentioned four layer material by gluing technique, and structure is as shown in Figure 1.Its
In, composite filter paper is fabricated to the flat multiple of 310mm × 242mm × 35mm or so by techniques such as cutting, paper folding, shapings
Close purifying filter element.Sample is put into air purifier, according to GB GB/T18801-2015 method of testings, purification of air is tested
Device purifying formaldehyde, the CADR values of particulate matter and CCM numerical value in hurricane shelves.
6) have chosen conventional composite screen (only HEPA screen packs, catalysis activity layer of charcoal and non-woven fabrics fiber layer)
Contrasted, Experimental comparison's data are as shown in table 1.As can be seen here, using PTFE filter membranes as intercept layer, and HEPA melt blown filters
Layer plays auxiliary interception function and as holding knoisphere, whole screen pack to the disposal ability of particulate matter by 6800mg lifted to
12560mg：
Table 1
Embodiment two
1) from the membrane aperture scope 0.1um of PTFE filter membranes；Thickness is 10.0um, its grammes per square metre 1.0g/m2；
2) HEPA filter layer is from the melt-blown filter paper of PP that filter efficiency is 99.9%；
3) adsoption catalysis stratum granulosum 3 is activated carbon supported metal oxide Au/MnOxComposite construction, by the presoma of Mn
Manganese nitrate solution, HAuCl4The aqueous solution mixes with activated carbon, impregnates stir process, impregnates 24h, then at 300 DEG C of roasting 30min,
Room temperature catalytic oxidation formaldehyde catalyst particle is obtained, adsoption catalysis stratum granulosum 3 is thus made, wherein, activated carbon is removed from CTC
Rate is more than 60% and particle diameter is the activated carbon granule of 20-100 mesh, and the mass percent of the catalyst component dipping is
10.0%；
4) non-woven fibrous filter layer choosing is that grammes per square metre is 50g/m2PET material.
5) respectively one layer of the addition of above-mentioned four layer material, composite filter paper is fabricated to by gluing technique, and structure is as shown in Figure 1.Its
In, composite filter paper is fabricated to the flat multiple of 310mm × 242mm × 35mm or so by techniques such as cutting, paper folding, shapings
Close purification filtering structure.Sample is put into air purifier, according to GB GB/T18801-2015 method of testings, air is tested
Clarifier purifying formaldehyde, the CADR values of particulate matter and CCM numerical value in hurricane shelves.
6) contrast composite screen (only PTFE filter membranes, HEPA screen packs, pure active carbon layer and non-woven fabrics be have chosen
Fibrage) contrasted, Experimental comparison's data are as shown in table 2.As can be seen here, from Au/MnOx composite construction modified activated carbons
Adsoption catalysis stratum granulosum 3 is made compared with original active carbon layer, the CCM numerical value of its formaldehyde is promoted to 660mg by 340mg；By
The ability of this visible its treatment formaldehyde pollutants is significantly enhanced.
7) Experimental comparison's data are as shown in table 2.
Table 2
Embodiment three
1) from the membrane aperture scope 0.1um of PTFE filter membranes；Thickness is 10.0um, its grammes per square metre 1.0g/m2；
2) HEPA filter layer is from the melt-blown filter paper of PP that filter efficiency is 95.0%；
3) adsoption catalysis stratum granulosum 3 is activated carbon supported metal oxide M nOxComposite construction, by the presoma nitre of Mn
Sour manganese solution mixes with activated carbon, impregnates stir process, impregnates 24h, then at 300 DEG C of roasting 30min, room temperature catalytic oxidation is obtained
Formaldehyde catalyst particle, is thus made adsoption catalysis stratum granulosum 3, wherein, activated carbon selects CTC clearances more than 60% and grain
Footpath is the activated carbon granule of 20-100 mesh, and the mass percent of catalyst component dipping is 5.0%.
4) non-woven fibrous filter layer choosing is that grammes per square metre is 70g/m2PET material.
5) respectively one layer of addition is fabricated to composite filter paper to above-mentioned four layer material by gluing technique, and structure is as shown in Figure 1.Its
In, composite filter paper is fabricated to the cylindrical of ￠ 243mm* ￠ 167mm*260mm and is combined by techniques such as cutting, paper folding, shapings
Purifying filter element.Sample is put into air purifier, according to GB GB/T18801-2015 method of testings, air purifier is tested
The CADR values of purifying formaldehyde, particulate matter in hurricane shelves.
6) have chosen conventional composite screen (only HEPA screen packs, catalysis activity layer of charcoal and non-woven fabrics fiber layer)
Contrasted, Experimental comparison's data are as shown in table 3.As can be seen here, using PTFE filter membranes as intercept layer, and HEPA melt blown filters
Layer plays auxiliary and intercepts and hold knoisphere effect, whole screen pack to the disposal ability of particulate matter by 12290mg lifted to
32350mg；
Table 3
Example IV
1) from the membrane aperture scope 0.1um of PTFE filter membranes；Thickness is 10.0um, its grammes per square metre 1.0g/m2；
2) HEPA filter layer is from the melt-blown filter paper of PP that filter efficiency is 95.0%；
3) adsoption catalysis stratum granulosum 3 is activated carbon supported metal oxide Au/MnOxComposite construction.By the presoma of Mn
Four water acetic acid manganese solutions, HAuCl4The aqueous solution and activated carbon mix, and impregnate stir process, impregnate 24h, then at 300 DEG C of roastings
30min, is obtained room temperature catalytic oxidation formaldehyde catalyst particle, is thus made adsoption catalysis stratum granulosum 3.Wherein, activated carbon is selected
CTC clearances are more than 60% and particle diameter is the activated carbon granule of 20-100 mesh, and the mass percent of catalyst component dipping is
10.0%.
4) non-woven fibrous filter layer choosing is that grammes per square metre is 70g/m2PET material.
5) respectively one layer of addition is fabricated to composite filter paper to above-mentioned four layer material by gluing technique, and structure is as shown in Figure 1.Its
In, composite filter paper is fabricated to the cylindrical of ￠ 243mm* ￠ 167mm*260mm and is combined by techniques such as cutting, paper folding, shapings
Purifying filter element.Sample is put into air purifier, according to GB GB/T18801-2015 method of testings, air purifier is tested
The CADR values of purifying formaldehyde, particulate matter in hurricane shelves.
6) contrast composite screen (only PTFE filter membranes, HEPA screen packs, pure active carbon layer and non-woven fabrics be have chosen
Fibrage) contrasted, Experimental comparison's data are as shown in table 4.As can be seen here, from Au/MnOxComposite construction modified activated carbon
Adsoption catalysis stratum granulosum 3 is made compared with original active carbon layer, the CCM numerical value of its formaldehyde is promoted to 1260mg by 630mg；By
The ability of this visible its treatment formaldehyde pollutants is significantly enhanced.
Table 4
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all it is of the invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (10)
1. a kind of compound air purification filtration, its ecto-entad includes that PTFE filter membranes, HEPA filter layer, absorption are urged successively
Change layer of particulate matter and non-woven fibrous filter layer.
2. compound air purification filtration according to claim 1, wherein the HEPA filter layer is by the melt-blown electrets of PP
Material or glass layer are made.
3. compound air purification filtration according to claim 1, wherein the adsoption catalysis stratum granulosum is by being impregnated with
The activated carbon of room temperature formaldehyde catalyst is made, and the room temperature formaldehyde catalyst is MnOx、CeOx、Co3O4、FeOx、CuxO、NiO、
TiO2In one or several copolymer.
4. compound air purification filtration according to claim 1, wherein the adsoption catalysis stratum granulosum is by being loaded with
The activated carbon of catalyst carrier is made, and room temperature formaldehyde catalyst powder is loaded with the catalyst carrier, wherein the catalysis
Agent carrier is metal oxide MnOx、CeOx、Co3O4、FeOx、CuxO、NiO、TiO2In one or several copolymer, institute
Room temperature formaldehyde catalyst powder is stated selected from one or more in Pt, Pd, Au, Ru, Rh, Ag.
5. compound air purification filtration according to claim 1, wherein the adsoption catalysis stratum granulosum is by room temperature first
Aldehyde catalyst layer is constituted, wherein the catalyst is metal oxide MnOx、CeOx、Co3O4、FeOx、CuxO、NiO、TiO2In
One or several copolymer.
6. compound air purification filtration according to claim 1, wherein the adsoption catalysis stratum granulosum is by being loaded with
The catalyst carrier of room temperature formaldehyde catalyst powder is constituted, and the catalyst carrier is metal oxide MnOx、CeOx、Co3O4、
FeOx、CuxO、NiO、TiO2In one or several copolymer, the room temperature formaldehyde catalyst powder be selected from Pt, Pd, Au,
One or more in Ru, Rh, Ag.
7. compound air purification filtration according to any one of claim 1 to 6, wherein the adsoption catalysis particle
The particle diameter of particle is in 20~100 mesh in layer.
8. compound air purification filtration according to any one of claim 1 to 6, wherein the fibrous filter layer is selected
From at least one of non-woven fabrics, PP, cellucotton.
9. a kind of composite air of the compound air purification filter core, including single or multiple lift as any one of claim 1 to 8
Purification filtering structure.
10. compound air purification filter core according to claim 9, it is characterised in that the compound air purification filtering knot
Structure is shaped to corrugated mode and sets to be folded, and it is fixed-type to bond frame, the compound air purification filtration quilt
It is made the one form of which in tabular, cylindrical shape, semicircle shape, convex-shaped.
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