CN210026522U - High-efficiency low-resistance non-woven composite air filter material - Google Patents
High-efficiency low-resistance non-woven composite air filter material Download PDFInfo
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- CN210026522U CN210026522U CN201920106681.8U CN201920106681U CN210026522U CN 210026522 U CN210026522 U CN 210026522U CN 201920106681 U CN201920106681 U CN 201920106681U CN 210026522 U CN210026522 U CN 210026522U
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Abstract
The utility model relates to a compound air filter material technical field of non-weaving, and a compound air filter material of non-weaving of high-efficient low resistance is disclosed, including compound filter media body, compound filter media body includes that polypropylene filament machine weaves, polypropylene needle punching non-woven short-staple web, activated carbon deodorization layer, glass fiber layer, PTFE fibrous layer, polyimide superfine fiber net and polypropylene melt-blown non-woven short-staple web. The utility model discloses a compound filter media body can carry out gradient filtration to the particle, the filter media is implemented the layering from top layer to bottom according to the particle size of different particles and is filtered promptly, the great particle of particle diameter is intercepted by the great size of top layer fibre and great aperture, medium size's particle is adsorbed for the intermediate level, small size's particle blocks for the tiny fiber layer and the less aperture of bottom layer, can obtain good filtration efficiency from this, the filtration resistance rises slowly simultaneously, can reach the effect of high-efficient low resistance.
Description
Technical Field
The utility model relates to a non-weaving composite air filtering material technical field specifically is a non-weaving composite air filtering material of high-efficient low resistance.
Background
In recent years, national emission standards for industrial flue gas are becoming stricter. The demand of high-efficiency low-resistance air filtering materials for industrial ventilation filtering is increasing, and meanwhile, the requirements on the mechanical properties of the filtering materials, such as strength, abrasion resistance and the like, are also increasing. The non-woven fabrics are increasingly widely applied in the field of industrial ventilation and filtration, and particularly the compounding of the non-woven fabrics in different net forming modes can effectively improve the high-efficiency and low-resistance performance of the filter material. The polypropylene (PP) fiber has the advantages of good chemical resistance and insulating property, easily obtained raw materials, low cost, simple production process, high strength and light relative density, thereby having wide application in the development and production of non-woven fabrics. The melt-blown non-woven fabric is composed of superfine fibers, and the fibers have large specific surface area and small pores, so that the capacity of capturing and adsorbing small particles is strong, and the filtering efficiency is high. The pore diameter of the needle-punched non-woven fabric is larger, but the pore diameter distribution is more uniform, the porosity is high, the filtration resistance is small, and the mechanical property is excellent. However, under the working conditions with higher requirements on the mechanical properties of the filter material, the pure nonwoven composite filter material cannot meet the use requirements, so that woven fabrics with good tensile and wear-resisting properties are necessary to be used as a composite unit.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a non-woven composite air filter material of high-efficient low resistance has reached and has had good mechanical properties, can satisfy mechanical properties and require operation requirement's under the higher operating mode purpose.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high-efficient low resistance non-weaving composite air filter material, includes the composite filter material body, the composite filter material body includes that polypropylene filament machine weaves, polypropylene needle punching non-weaving short fiber net, activated carbon deodorization layer, glass fiber layer, PTFE fibrous layer, polyimide superfine fiber net and polypropylene melt-blow non-weaving short fiber net, the top that polypropylene filament machine weaves is the top layer of composite filter material body, the top of polypropylene needle punching non-weaving short fiber net is located the bottom that polypropylene filament machine weaves, the top of activated carbon deodorization layer is located the bottom of polypropylene needle punching non-weaving short fiber net, the glass fiber layer is located between activated carbon deodorization layer and the PTFE fibrous layer, and the top and the bottom of glass fiber layer bond with the relative one side of activated carbon deodorization layer and PTFE fibrous layer respectively, the top of polyimide superfine fiber net is located the bottom of PTFE fibrous layer, the top of the polypropylene melt-blown non-woven short fiber net is bonded with the bottom of the polyimide superfine fiber net, and the bottom of the polypropylene melt-blown non-woven short fiber net is the bottom layer of the composite filter material body.
Preferably, the thickness of the composite filter material body is 2.4-5.2 mm, the average pore diameter of the composite filter material body is 10-35 μm, the pore diameter variation coefficient of the composite filter material body is 45-90%, the surface density of the composite filter material body is 145-370 g/m2, the longitudinal breaking strength of the composite filter material body is 1100-1500N, the transverse breaking strength of the composite filter material body is 800-1200N, the longitudinal breaking elongation of the composite filter material body is 30-50%, and the transverse breaking elongation of the composite filter material body is 40-60%.
Preferably, the warp of the polypropylene filament woven fabric is 75-120 dtex polypropylene multifilament, the weft of the polypropylene filament woven fabric is 75-120 dtex polypropylene multifilament, the warp density of the polypropylene filament woven fabric is 300-360/10 cm, the weft density of the polypropylene filament woven fabric is 240-320/10 cm, the weave structure of the polypropylene filament woven fabric is a plain weave, the area density of the polypropylene filament woven fabric is 50-180 g/m2, the thickness of the polypropylene filament woven fabric is 0.30-0.90 mm, the average pore diameter of the polypropylene filament woven fabric is 45-70 mu m, and the pore diameter variation coefficient of the polypropylene filament woven fabric is 25-60%.
Preferably, the thickness of the polypropylene needle-punched non-woven short fiber net is 2-4 mm, the average diameter of the polypropylene needle-punched non-woven short fiber net is 18-30 micrometers, the length of the polypropylene needle-punched non-woven short fiber net is 38-75 mm, the average pore diameter of the polypropylene needle-punched non-woven short fiber net is 20-45 micrometers, the pore diameter variation coefficient of the polypropylene needle-punched non-woven short fiber net is 25-50%, and the areal density of the polypropylene needle-punched non-woven short fiber net is 80-150 g/m 2.
Preferably, the thickness of the polypropylene melt-blown non-woven short fiber net is 0.1-0.3 mm, the average diameter of the polypropylene melt-blown non-woven short fiber net is 1-6 mu m, the average pore diameter of the polypropylene melt-blown non-woven short fiber net is 5-15 mu m, the pore diameter variation coefficient of the polypropylene melt-blown non-woven short fiber net is 12-30%, and the areal density of the polypropylene melt-blown non-woven short fiber net is 15-40 g/m 2.
Preferably, the PTFE fiber layer is added with nano copper fine powder and nano zinc oxide fine powder.
The utility model provides a non-woven composite air filtering material of high-efficient low resistance. The method has the following beneficial effects:
(1) the utility model discloses a from top layer to bottom, the fibre yardstick is by big to little in proper order, and the average aperture of fibre web is by big to little, forms the two gradient structures of fibre yardstick, aperture yardstick, because the fibre yardstick is littleer, makes its catching ability to tiny particle stronger more, and the ability of blockking to tiny particle is stronger more simultaneously.
(2) The utility model discloses a compound filter media body can carry out gradient filtration to the particle, the filter media is implemented the layering from top layer to bottom according to the particle size of different particles and is filtered promptly, the great particle of particle diameter is intercepted by the great size of top layer fibre and great aperture, medium size's particle is adsorbed for the intermediate level, small particle's particle blocks for the tiny fiber layer and the less aperture of bottom layer, can obtain good filtration efficiency from this, the filtration resistance rises slowly simultaneously, can reach the effect of high-efficient low resistance.
(3) The utility model discloses because the top layer is woven for polypropylene filament machine, cooperates the interpolation on glass fiber layer simultaneously, cooperates its physical properties for compound filter media has good mechanical properties, can satisfy the operation requirement under the higher operating mode of mechanical properties requirement.
(4) The utility model discloses because polyimide microfiber net's setting not only can make whole compound filter media body can filter PM 2.5's dust particle to mechanical properties is stable, has prolonged air filtering material's life.
Drawings
Fig. 1 is a top view of the structure of the present invention;
fig. 2 is a front sectional view of the structure of the present invention.
In the figure: 1 composite filter material body, 11 polypropylene filament woven fabrics, 12 polypropylene needle-punched non-woven short fiber nets, 13 activated carbon deodorization layers, 14 glass fiber layers, 15PTFE fiber layers, 16 polyimide superfine fiber nets and 17 polypropylene melt-blown non-woven short fiber nets.
Detailed Description
As shown in fig. 1-2, the utility model provides a technical solution: a high-efficiency low-resistance non-woven composite air filter material comprises a composite filter material body 1, wherein the thickness of the composite filter material body 1 is 2.4-5.2 mm, the average pore diameter of the composite filter material body 1 is 10-35 mu m, the pore diameter variation coefficient of the composite filter material body 1 is 45-90%, the surface density of the composite filter material body 1 is 145-370 g/m2, the longitudinal breaking strength of the composite filter material body 1 is 1100-1500N, the transverse breaking strength of the composite filter material body 1 is 800-1200N, the longitudinal breaking elongation of the composite filter material body 1 is 30-50%, the transverse breaking elongation of the composite filter material body 1 is 40-60%, the composite filter material body 1 comprises a polypropylene woven filament 11, a polypropylene needle-punched non-woven short fiber net 12, an activated carbon deodorization layer 13, a glass fiber layer 14, a PTFE fiber layer 15, a polyimide ultra-fine fiber net 16 and a polypropylene melt-blown non-woven short fiber net 17, the top of the polypropylene filament woven fabric 11 is the surface layer of the composite filter material body 1, the warp of the polypropylene filament woven fabric 11 is 75-120 dtex polypropylene multifilament, the weft of the polypropylene filament woven fabric 11 is 75-120 dtex polypropylene multifilament, the warp density of the polypropylene filament woven fabric 11 is 300-360/10 cm, the weft density of the polypropylene filament woven fabric 11 is 240-320/10 cm, the weave structure of the polypropylene filament woven fabric 11 is a plain weave, the surface density of the polypropylene filament woven fabric 11 is 50-180 g/m2, the thickness of the polypropylene filament woven fabric 11 is 0.30-0.90 mm, the average pore diameter of the polypropylene filament woven fabric 11 is 45-70 μm, the pore diameter variation coefficient of the polypropylene filament woven fabric 11 is 25-60%, the top of the polypropylene needle-punched non-woven short fiber net 12 is positioned at the bottom of the polypropylene filament woven fabric 11, and the thickness of the polypropylene needle-punched non-short fiber net 12 is 2-4 mm, the average diameter of the polypropylene needle-punched non-woven short fiber net 12 is 18-30 mu m, the length of the polypropylene needle-punched non-woven short fiber net 12 is 38-75 mm, the average pore diameter of the polypropylene needle-punched non-woven short fiber net 12 is 20-45 mu m, the pore diameter variation coefficient of the polypropylene needle-punched non-woven short fiber net 12 is 25-50%, the surface density of the polypropylene needle-punched non-woven short fiber net 12 is 80-150 g/m2, the top of the active carbon deodorization layer 13 is positioned at the bottom of the polypropylene needle-punched non-woven short fiber net 12, the glass fiber layer 14 is positioned between the active carbon deodorization layer 13 and the PTFE fiber layer 15, the top and the bottom of the glass fiber layer 14 are respectively bonded with the opposite sides of the active carbon deodorization layer 13 and the PTFE fiber layer 15, the top of the polyimide superfine fiber net 16 is positioned at the bottom of the PTFE fiber layer 15, nano copper micro powder and nano zinc oxide are added in the PTFE fiber layer 15, the top of the polypropylene melt-blown non-woven short fiber net 17 is bonded with the bottom of the polyimide superfine fiber net 16, the bottom of the polypropylene melt-blown non-woven short fiber net 17 is the bottom layer of the composite filter material body 1, the thickness of the polypropylene melt-blown non-woven short fiber net 17 is 0.1-0.3 mm, the average diameter of the polypropylene melt-blown non-woven short fiber net 17 is 1-6 mu m, the average pore diameter of the polypropylene melt-blown non-woven short fiber net 17 is 5-15 mu m, the pore diameter variation coefficient of the polypropylene melt-blown non-woven short fiber net 17 is 12-30%, and the surface density of the polypropylene melt-blown non-woven short fiber net 17 is 15-40 g/m 2.
In summary, the following results can be obtained: the utility model forms a double gradient structure with fiber dimension and aperture dimension by the fiber dimension from the surface layer to the bottom layer, the smaller the fiber dimension, the stronger the catching ability of the fiber mesh and the stronger the blocking ability of the fine particles, the gradient filtering can be carried out on the particles by the composite filter material body 1, namely, the layered filtering can be carried out on the filter material from the surface layer to the bottom layer according to the particle diameters of different particles, the particles with larger particle diameters are intercepted by the fibers with larger dimension and larger aperture on the surface layer, the particles with medium particle diameters are absorbed by the middle layer, the particles with small particle diameters are blocked by the fine fiber layer and smaller aperture on the bottom layer, thereby the excellent filtering efficiency can be obtained, the filtering resistance rises slowly, the effect of high efficiency and low resistance can be achieved, the utility model discloses a polypropylene filament woven fabric 11 on the surface layer, the interpolation of cooperation glass fiber layer cooperates its physical properties simultaneously for compound filter media has good mechanical properties, can satisfy the operation requirement under the higher operating mode of mechanical properties requirement, the utility model discloses because polyimide microfiber web 16's setting not only can make whole compound filter media body 1 can filter PM 2.5's dust granule, and mechanical properties is stable, has prolonged air filtering material's life.
Claims (6)
1. The utility model provides a compound air filter material of non-weaving of high-efficient low resistance, includes compound filter media body (1), its characterized in that: the composite filter material body (1) comprises a polypropylene filament woven fabric (11), a polypropylene needle-punched non-woven short fiber net (12), an activated carbon deodorization layer (13), a glass fiber layer (14), a PTFE fiber layer (15), a polyimide superfine fiber net (16) and a polypropylene melt-blown non-woven short fiber net (17), the top of the polypropylene filament woven fabric (11) is the surface layer of the composite filter material body (1), the top of the polypropylene needle-punched non-woven short fiber net (12) is positioned at the bottom of the polypropylene filament woven fabric (11), the top of the activated carbon deodorization layer (13) is positioned at the bottom of the polypropylene needle-punched non-woven short fiber net (12), the glass fiber layer (14) is positioned between the activated carbon deodorization layer (13) and the PTFE fiber layer (15), and the top and the bottom of the glass fiber layer (14) are respectively bonded with the opposite side of the activated carbon deodorization layer (13) and the PTFE fiber layer (15), the top of the polyimide superfine fiber net (16) is positioned at the bottom of the PTFE fiber layer (15), the top of the polypropylene melt-blown non-woven short fiber net (17) is bonded with the bottom of the polyimide superfine fiber net (16), and the bottom of the polypropylene melt-blown non-woven short fiber net (17) is the bottom layer of the composite filter material body (1).
2. The high efficiency, low resistance nonwoven composite air filtration material of claim 1, wherein: the thickness of the composite filter material body (1) is 2.4-5.2 mm, the average pore diameter of the composite filter material body (1) is 10-35 mu m, the pore diameter variation coefficient of the composite filter material body (1) is 45-90%, the surface density of the composite filter material body (1) is 145-370 g/m2, the longitudinal breaking strength of the composite filter material body (1) is 1100-1500N, the transverse breaking strength of the composite filter material body (1) is 800-1200N, the longitudinal breaking elongation of the composite filter material body (1) is 30-50%, and the transverse breaking elongation of the composite filter material body (1) is 40-60%.
3. The high efficiency, low resistance nonwoven composite air filtration material of claim 1, wherein: the warp of the polypropylene filament woven fabric (11) is 75-120 dtex polypropylene multifilament, the weft of the polypropylene filament woven fabric (11) is 75-120 dtex polypropylene multifilament, the warp density of the polypropylene filament woven fabric (11) is 300-360/10 cm, the weft density of the polypropylene filament woven fabric (11) is 240-320/10 cm, the weave structure of the polypropylene filament woven fabric (11) is a plain weave, the surface density of the polypropylene filament woven fabric (11) is 50-180 g/m2, the thickness of the polypropylene filament woven fabric (11) is 0.30-0.90 mm, the average pore diameter of the polypropylene filament woven fabric (11) is 45-70 mu m, and the pore diameter variation coefficient of the polypropylene filament woven fabric (11) is 25-60%.
4. The high efficiency, low resistance nonwoven composite air filtration material of claim 1, wherein: the thickness of the polypropylene needle-punched non-woven short fiber net (12) is 2-4 mm, the average diameter of the polypropylene needle-punched non-woven short fiber net (12) is 18-30 mu m, the length of the polypropylene needle-punched non-woven short fiber net (12) is 38-75 mm, the average pore diameter of the polypropylene needle-punched non-woven short fiber net (12) is 20-45 mu m, the pore diameter variation coefficient of the polypropylene needle-punched non-woven short fiber net (12) is 25-50%, and the areal density of the polypropylene needle-punched non-woven short fiber net (12) is 80-150 g/m 2.
5. The high efficiency, low resistance nonwoven composite air filtration material of claim 1, wherein: the thickness of the polypropylene melt-blown non-woven short fiber net (17) is 0.1-0.3 mm, the average diameter of the polypropylene melt-blown non-woven short fiber net (17) is 1-6 mu m, the average pore diameter of the polypropylene melt-blown non-woven short fiber net (17) is 5-15 mu m, the pore diameter variation coefficient of the polypropylene melt-blown non-woven short fiber net (17) is 12-30%, and the areal density of the polypropylene melt-blown non-woven short fiber net (17) is 15-40 g/m 2.
6. The high efficiency, low resistance nonwoven composite air filtration material of claim 1, wherein: the PTFE fiber layer (15) is added with nano copper micro powder and nano zinc oxide micro powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920106681.8U CN210026522U (en) | 2019-01-22 | 2019-01-22 | High-efficiency low-resistance non-woven composite air filter material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920106681.8U CN210026522U (en) | 2019-01-22 | 2019-01-22 | High-efficiency low-resistance non-woven composite air filter material |
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| Publication Number | Publication Date |
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| CN210026522U true CN210026522U (en) | 2020-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920106681.8U Expired - Fee Related CN210026522U (en) | 2019-01-22 | 2019-01-22 | High-efficiency low-resistance non-woven composite air filter material |
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| CN (1) | CN210026522U (en) |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200207 Termination date: 20220122 |