CN104353304A - Filter screen - Google Patents
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- CN104353304A CN104353304A CN201410521221.3A CN201410521221A CN104353304A CN 104353304 A CN104353304 A CN 104353304A CN 201410521221 A CN201410521221 A CN 201410521221A CN 104353304 A CN104353304 A CN 104353304A
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Abstract
The invention belongs to the technical field of filtering devices, and particularly relates to a filter screen. The filter screen comprises a filter screen frame and a filtering material arranged in the filter screen frame; the filtering material is a polyurethane synthetic resin filtering material. The polyurethane synthetic resin filtering material has a relatively large filtration area and viscosity at the same time; air passing the filter screen can be filtered fully without influence on air permeability; when passing the filter screen, dust, germs even mosquitoes in the air can be stuck on the surface of the polyurethane synthetic resin filtering material; the filter effect is good; the polyurethane synthetic resin filtering material can be cleaned repeatedly; the matters stuck on the surface can be cleaned with tap water or detergent; original surface viscosity can be recovered; the filter screen can be cleaned effectively; the service life is long.
Description
Technical field
The present invention relates to filter technical field, particularly relate to a kind of screen pack.
Background technology
Current environmental pollution is on the rise, the residue discharged in the processes such as daily generating, industrial production, motor vehicle exhaust emission, and it produces a large amount of entered lung particles, directly compromises the healthy of people; Therefore the resident's health lived in city is subject to air-polluting infringement, and therefore, the screen pack researching and developing the material such as dust, pathogenic microorganisms in a kind of effective filtered air will play a positive role to human health.
Existing screen pack mainly adopts non-woven fabrics or INVENTIONPaper filter granule dust, charcoal absorption noxious odor isotype, but because these materials also exist a lot of defect, such as active carbon once with the water molecules in air, namely the ability of effectively absorption is lost, non-woven fabrics or paper material easily absorb water and are out of shape even tattered, and screen pack cannot effectively clean, therefore short, ability of existing screen pack pot life, filter effect has much room for improvement.
Summary of the invention
The object of the invention is to provide a kind of for the deficiencies in the prior art and can effectively carry out cleaning, the screen pack of long service life, good filtration effect.
The present invention is achieved through the following technical solutions.
A kind of screen pack, comprise filter screen frame and be arranged at the filtering material in filter screen frame, described filtering material is polyurethane synthetic resin filtering material.
Wherein, described polyurethane synthetic resin filtering material foaming is the leachy spongy filtering material of tool, and described spongy filtering material is arranged in filter screen frame.
Further, it also comprises the supporter being connected to filter screen frame, and polyurethane synthetic resin filtering material attaches on supporter.
Wherein, described supporter is thread like body or filamentous, and the diameter of described thread like body or filamentous is 0.01mm ~ 1mm.Thread like body can adopt metal wire or non-metal wire, and filamentous can adopt wire or nonmetal wire.
Wherein, described supporter comprises some thread like bodies or some filamentous, some support bars, described some support bars are vertically installed in plane formed by filter screen frame, some thread like bodies or some filamentous are set around different support bars, and described polyurethane synthetic resin filtering material attaches to thread like body or filamentous.
Wherein, described thread like body or filamentous interlock and are set around different support bar and form filter screen sandwich layer, described filter screen sandwich layer be two-layer more than.
Wherein, each described support bar all arranges and is provided with some breach, and described thread like body or filamentous are set around on the breach of support bar.
Further, described polyurethane synthetic resin filtering material comprises the raw material of following weight portion: polyether polyol resin 10 ~ 15 parts, acrylic resin 15 ~ 20 parts, unsaturated polyester resin 8 ~ 10 parts, 5 ~ 8 parts, phenolic resins, Merlon 3 ~ 5 parts, natural resin 2 ~ 5 parts, 8 ~ 10 parts, amino resins, epoxy resin 10 ~ 15 parts, organic siliconresin 10 ~ 18 parts, isocyanates 10 ~ 15 parts, 5 ~ 8 parts, curing agent, catalyst 1.5 ~ 2 parts, tackifier 8 ~ 10 parts, levelling agent 1.0 ~ 1.2 parts.This polyurethane synthetic resin filtering material has stickiness, can repeatedly clean, the material running water of surface adhesion or add washing agent and clean, and can recover original surface tackiness, can also use as seamless glue.
Further, described polyurethane synthetic resin filtering material comprises the raw material of following weight portion: polyether polyol resin 12 ~ 13 parts, acrylic resin 16 ~ 18 parts, unsaturated polyester resin 9 ~ 10 parts, 6 ~ 7 parts, phenolic resins, Merlon 4 ~ 5 parts, natural resin 3 ~ 4 parts, 9 ~ 10 parts, amino resins, epoxy resin 10 ~ 13 parts, organic siliconresin 13 ~ 15 parts, isocyanates 11 ~ 14 parts, 6 ~ 7 parts, curing agent, catalyst 1.5 ~ 2 parts, tackifier 9 ~ 10 parts, levelling agent 1.1 ~ 1.2 parts.
Wherein, described natural resin is any mixture of a kind of in rosin, starch-resin or two kinds; Described curing agent is polyetheramine; Described catalyst is double metal cyanide catalyst; Described tackifier are silane coupler; Described levelling agent is no-solvent polyurethane.
Wherein, polyether polyol resin is preferably any one or two or more mixture in any proportion in polyoxypropyleneglycol, polytetrahydrofuran diol, oxolane-propylene oxide copolymer glycols etc., and the polyether polyol resin of other kind also can be applied in the present invention.Acrylic resin is preferably thermoplastic acrylic resin or the mixture for any one in thermosetting acrylic resin or two kinds, and the acrylic resin of other kind also can be applied in the present invention.Unsaturated polyester resin is preferably any one or two or more mixture in any proportion in O-phthalic acid type, M-phthalic acid type, bisphenol A-type and vinyl ester type, halo unsaturated polyester resin, and the unsaturated polyester resin of other kind also can be applied in the present invention.Amino resins is preferably any one or two or more mixture in any proportion in Lauxite (UF), melamine resin (MF) and Polyamide-Polyamsne-Epichlorohydrin (PAE), and the amino resins of other kind also can be applied in the present invention.Epoxy resin is preferably any one or two or more mixture in any proportion in glycidyl ether type epoxy resin, glycidyl ester epoxy resin, glycidyl amine epoxy resin, linear aliphatic based epoxy resin, alicyclic based epoxy resin, and the epoxy resin of other kind also can be applied in the present invention.Isocyanates is preferably toluene di-isocyanate(TDI) (TolueneDiisocyanate, be called for short TDI), methyl diphenylene diisocyanate (Methylenediphenyl Diisocyanate, be called for short MDI), 1, any one or two or more mixture in any proportion in hexamethylene-diisocyanate (HDI), the isocyanates of other kind also can be applied in the present invention.Similarly, all types of phenolic resins, Merlon, organic siliconresin all can be applicable in the present invention.
Further, it also comprises the PU color of 0.1 ~ 10 weight portion.
The preparation method of above-mentioned polyurethane synthetic resin filtering material is: by weight, is mixed by raw material, puts into the reactor of 120 DEG C ~ 140 DEG C, react 80 ~ 120 minutes while stirring, obtained polyurethane synthetic resin filtering material.Above-mentioned polyurethane synthetic resin filtering material adopts existing foaming technology foaming to be attach to after the leachy spongy filtering material of tool in filter screen frame or on supporter.
Compared with prior art, the present invention has following beneficial effect:
Screen pack of the present invention, comprise filter screen frame and be arranged at the filtering material in filter screen frame, described filtering material is polyurethane synthetic resin filtering material.Polyurethane synthetic resin filtering material has larger filter area, possesses the air of stickiness by screen pack simultaneously, both can be filtered fully, and not affect permeability again; Dust in air, germ even mosquito by screen pack time, the surface of polyurethane synthetic resin filtering material can be attached to, good filtration effect; Polyurethane synthetic resin filtering material can clean repeatedly, the material running water of surface adhesion or add washing agent and clean, and can recover original surface tackiness, therefore effectively can clean screen pack, long service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment 1 of a kind of screen pack of the present invention.
Fig. 2 is the structural representation of the embodiment 2 of a kind of screen pack of the present invention.
Fig. 3 is the structural representation of the hiding polyurethane synthetic resin filtering material of the embodiment 3 of a kind of screen pack of the present invention.
Fig. 4 is the side view of Fig. 3.
Fig. 5 is the thread like body of the embodiment 4 of a kind of screen pack of the present invention or the syndeton schematic diagram of filamentous and support bar.
Reference numeral
1---filter screen frame 2---supporter
3---filtering material 4---breach
21---support bar 22---thread like body or filamentous.
Detailed description of the invention
Below in conjunction with the drawings and the specific embodiments, the present invention is described in detail.
Embodiment 1
As shown in Figure 1, a kind of screen pack, the filtering material 3 comprising filter screen frame 1 and be arranged in filter screen frame 1, described filtering material 3 is polyurethane synthetic resin filtering material.Polyurethane synthetic resin filtering material foaming is the leachy spongy filtering material of tool, and described spongy filtering material is arranged in filter screen frame 1.
Polyurethane synthetic resin filtering material is directly arranged in filter screen frame 1, the dust in effective filtered air, germ even mosquito.Polyurethane synthetic resin filtering material has larger filter area, possesses stickiness simultaneously, by the air of screen pack, both can be filtered fully, and not affect permeability again; Dust in air, germ even mosquito by screen pack time, the surface of polyurethane synthetic resin filtering material can be attached to, good filtration effect; Polyurethane synthetic resin filtering material can clean repeatedly, the material running water of surface adhesion or add washing agent and clean, and can recover original surface tackiness, therefore effectively can clean screen pack, long service life.
Particularly, polyurethane synthetic resin filtering material, it comprises the raw material of following weight portion: polyether polyol resin 12 parts, acrylic resin 16 parts, unsaturated polyester resin 8 parts, 5 parts, phenolic resins, Merlon 4 parts, natural resin 3 parts, 10 parts, amino resins, epoxy resin 15 parts, organic siliconresin 15 parts, isocyanates 15 parts, 8 parts, curing agent, catalyst 2 parts, tackifier 10 parts, levelling agent 1.2 parts.Wherein, described natural resin is starch-resin; Described curing agent is polyetheramine; Described catalyst is double metal cyanide catalyst; Described tackifier are silane coupler; Described levelling agent is no-solvent polyurethane.The preparation method of polyurethane synthetic resin filtering material is: by weight, is mixed by raw material, puts into the reactor of 120 DEG C, reacts 90 minutes while stirring, obtained polyurethane synthetic resin filtering material.Polyurethane synthetic resin filtering material adopts existing foaming technology foaming to be attach in filter screen frame 1 after the leachy spongy filtering material of tool.
Embodiment 2
As shown in Figure 2, the difference of the present embodiment and embodiment 1 is: it also comprises the supporter 2 being connected to filter screen frame 1, and polyurethane synthetic resin filtering material attaches on supporter 2.
Supporter 2 is thread like body or filamentous 22.The diameter of thread like body or filamentous 22 is 0.01mm ~ 1mm.The two ends of thread like body or filamentous 22 are connected to filter screen frame 11, and thread like body or filamentous 22 can be arranged in parallel, or are staggered, and are closely arranged in filter screen frame 11, the dust in effective filtered air, germ even mosquito.The diameter of thread like body or filamentous 22 is 0.01mm ~ 1mm, particularly, diameter can arrange 0.01mm, 0.02mm, 0.03mm, 0.05mm, 0.08mm, 0.09mm, 0.1mm, 0.2mm, 0.3mm, 0.5mm, 0.8mm, 1.0mm etc., use thread like body or the filamentous 22 of above-mentioned diameter, make screen pack both reach good permeability, have good filter effect simultaneously.Thread like body can adopt metal wire or non-metal wire, and filamentous can adopt wire or nonmetal wire.
Particularly, polyurethane synthetic resin filtering material, it comprises the raw material of following weight portion: polyether polyol resin 15 parts, acrylic resin 20 parts, unsaturated polyester resin 10 parts, 7 parts, phenolic resins, Merlon 5 parts, natural resin 5 parts, 9 parts, amino resins, epoxy resin 13 parts, organic siliconresin 17 parts, isocyanates 13 parts, 6 parts, curing agent, catalyst 2 parts, tackifier 9 parts, levelling agent 1.1 parts, PU color 3 weight portion.Wherein, described natural resin is rosin; Described curing agent is polyetheramine; Described catalyst is double metal cyanide catalyst; Described tackifier are silane coupler; Described levelling agent is no-solvent polyurethane.The preparation method of polyurethane synthetic resin filtering material is: by weight, is mixed by raw material, puts into the reactor of 140 DEG C, reacts 80 minutes while stirring, obtained polyurethane synthetic resin filtering material.
Embodiment 3
As shown in Figure 3, the difference of the present embodiment and embodiment 2 is: described supporter 2 comprises some thread like bodies or some filamentous 22, some support bars 21, described some support bars 21 are vertically installed in plane formed by filter screen frame 11, thread like body or filamentous 22 are set around different support bars 21, and described polyurethane synthetic resin filtering material is arranged on thread like body or filamentous 22.
As shown in Figure 4, described thread like body or filamentous 22 is staggered is set around different support bars 21 and forms filter screen sandwich layer, described filter screen sandwich layer be two-layer more than.Thread like body or filamentous 22 carry out irregular or regular coiling thus form filter screen sandwich layer on support bar 21, then on ground floor filter screen sandwich layer, form the second layer filter screen sandwich layer staggered with its mesh, stereoscopic graticule can be formed after mode carries out several times according to this, because thread like body or filamentous 22 surface adhesion have polyurethane synthetic resin filtering material, so this netting gear has waterproof, mosquito-proof, dust-proof effect, do not affect ventilative, printing opacity simultaneously.
Particularly, polyurethane synthetic resin filtering material, it comprises the raw material of following weight portion: polyether polyol resin 10 parts, acrylic resin 15 parts, unsaturated polyester resin 9 parts, 6 parts, phenolic resins, Merlon 3.5 parts, natural resin 2.8 parts, 9 parts, amino resins, epoxy resin 12 parts, organic siliconresin 12 parts, isocyanates 13 parts, 6 parts, curing agent, catalyst 1.8 parts, tackifier 9 parts, levelling agent 1.0 parts.Wherein, described natural resin is the mixture of arbitrary proportion of rosin, starch-resin; Described curing agent is polyetheramine; Described catalyst is double metal cyanide catalyst; Described tackifier are silane coupler; Described levelling agent is no-solvent polyurethane.The preparation method of polyurethane synthetic resin filtering material is: by weight, is mixed by raw material, puts into the reactor of 120 DEG C, reacts 120 minutes while stirring, obtained polyurethane synthetic resin filtering material.
Embodiment 4
As shown in Figure 5, the difference of the present embodiment and embodiment 2 is: each described support bar 21 all arranges and is provided with some breach 4, and described thread like body or some filamentous 22 are set around on the breach 4 of support bar 21.The setting of breach 4, can make thread like body or filamentous 22 be fixed on the breach 4 of setting on some support bars 21, play the effect of fixing thread like body or filamentous 22, makes filter screen structure stable, firm, long service life.
Particularly, polyurethane synthetic resin filtering material, it comprises the raw material of following weight portion: polyether polyol resin 13 parts, acrylic resin 18 parts, unsaturated polyester resin 9 parts, 7 parts, phenolic resins, Merlon 4 parts, natural resin 3.8 parts, 10 parts, amino resins, epoxy resin 13 parts, organic siliconresin 15 parts, isocyanates 14 parts, 7 parts, curing agent, catalyst 1.8 parts, tackifier 10 parts, levelling agent 1.2 parts.Wherein, described natural resin is the mixture of arbitrary proportion of rosin, starch-resin; Described curing agent is polyetheramine; Described catalyst is double metal cyanide catalyst; Described tackifier are silane coupler; Described levelling agent is no-solvent polyurethane.The preparation method of polyurethane synthetic resin filtering material is: by weight, is mixed by raw material, puts into the reactor of 130 DEG C, reacts 110 minutes while stirring, obtained polyurethane synthetic resin filtering material.
Finally should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; although done to explain to the present invention with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to technical scheme of the present invention or equivalent replacement, and not depart from essence and the scope of technical solution of the present invention.
Claims (10)
1. a screen pack, comprise filter screen frame and be arranged at the filtering material in filter screen frame, it is characterized in that, described filtering material is polyurethane synthetic resin filtering material.
2. screen pack according to claim 1, is characterized in that, described polyurethane synthetic resin filtering material foaming is the leachy spongy filtering material of tool, and described spongy filtering material is arranged in filter screen frame.
3. screen pack according to claim 1, is characterized in that, it also comprises the supporter being connected to filter screen frame, and polyurethane synthetic resin filtering material attaches on supporter.
4. screen pack according to claim 3, is characterized in that, described supporter is thread like body or filamentous, and the diameter of described thread like body or filamentous is 0.01mm ~ 1mm.
5. screen pack according to claim 3, it is characterized in that, described supporter comprises some thread like bodies or some filamentous, some support bars, described some support bars are vertically installed in plane formed by filter screen frame, some thread like bodies or some filamentous are set around different support bars, and described polyurethane synthetic resin filtering material attaches to thread like body or filamentous.
6. screen pack according to claim 5, is characterized in that, described thread like body or filamentous interlock and be set around different support bar and form filter screen sandwich layer, described filter screen sandwich layer be two-layer more than.
7. screen pack according to claim 5, is characterized in that, each described support bar all arranges and is provided with some breach, and described thread like body or filamentous are set around on the breach of support bar.
8. the screen pack according to claim 1 ~ 7 any one, it is characterized in that, described polyurethane synthetic resin filtering material comprises the raw material of following weight portion: polyether polyol resin 10 ~ 15 parts, acrylic resin 15 ~ 20 parts, unsaturated polyester resin 8 ~ 10 parts, 5 ~ 8 parts, phenolic resins, Merlon 3 ~ 5 parts, natural resin 2 ~ 5 parts, 8 ~ 10 parts, amino resins, epoxy resin 10 ~ 15 parts, organic siliconresin 10 ~ 18 parts, isocyanates 10 ~ 15 parts, 5 ~ 8 parts, curing agent, catalyst 1.5 ~ 2 parts, tackifier 8 ~ 10 parts, levelling agent 1.0 ~ 1.2 parts.
9. screen pack according to claim 8, it is characterized in that, described polyurethane synthetic resin filtering material comprises the raw material of following weight portion: polyether polyol resin 12 ~ 13 parts, acrylic resin 16 ~ 18 parts, unsaturated polyester resin 9 ~ 10 parts, 6 ~ 7 parts, phenolic resins, Merlon 4 ~ 5 parts, natural resin 3 ~ 4 parts, 9 ~ 10 parts, amino resins, epoxy resin 10 ~ 13 parts, organic siliconresin 13 ~ 15 parts, isocyanates 11 ~ 14 parts, 6 ~ 7 parts, curing agent, catalyst 1.5 ~ 2 parts, tackifier 9 ~ 10 parts, levelling agent 1.1 ~ 1.2 parts.
10. screen pack according to claim 8, is characterized in that, described natural resin is any mixture of a kind of in rosin, starch-resin or two kinds; Described curing agent is polyetheramine; Described catalyst is double metal cyanide catalyst; Described tackifier are silane coupler; Described levelling agent is no-solvent polyurethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410521221.3A CN104353304A (en) | 2014-09-30 | 2014-09-30 | Filter screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410521221.3A CN104353304A (en) | 2014-09-30 | 2014-09-30 | Filter screen |
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| Publication Number | Publication Date |
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| CN104353304A true CN104353304A (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410521221.3A Pending CN104353304A (en) | 2014-09-30 | 2014-09-30 | Filter screen |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104799450A (en) * | 2015-04-08 | 2015-07-29 | 广西师范大学 | Haze-preventing respirator and production method thereof |
| CN106181668A (en) * | 2016-07-19 | 2016-12-07 | 柳州首光科技有限公司 | A kind of energy-efficient filter-type crystalline substance evil spirit slabstone machine for automatically polishing |
| CN106181776A (en) * | 2016-07-19 | 2016-12-07 | 柳州首光科技有限公司 | A kind of energy efficient filtration type crystalline substance evil spirit slabstone machine for automatically polishing based on Internet of Things |
| CN106215551A (en) * | 2016-08-31 | 2016-12-14 | 朱凤兮 | A kind of self-cleaning nona fiber filter material |
| CN107178795A (en) * | 2017-05-18 | 2017-09-19 | 浙江中力工具制造有限公司 | A kind of biomass fireplace with humidifier |
| CN108079662A (en) * | 2016-11-21 | 2018-05-29 | 宜兴市帝洲新能源科技有限公司 | A kind of screen material of household electrical appliance |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101275519A (en) * | 2007-12-28 | 2008-10-01 | 郭安民 | Improved polyurethane air filter core |
| CN201132091Y (en) * | 2007-12-28 | 2008-10-15 | 郭安民 | Improved cuboid polyurethane filter core of air cleaner |
| CN201263941Y (en) * | 2008-09-10 | 2009-07-01 | 杨卫 | Dustproof ventilated net |
| CN101725086A (en) * | 2009-12-11 | 2010-06-09 | 中材科技股份有限公司 | High-temperature resistant air filter paper and preparation method thereof |
| US20110220134A1 (en) * | 2008-09-16 | 2011-09-15 | Martin Duke | Filter For A Smoking Article |
| CN102824800A (en) * | 2011-06-15 | 2012-12-19 | 苏州波塞顿节能环保工程有限公司 | Polyvinyl chloride filter core |
| CN202741002U (en) * | 2012-06-27 | 2013-02-20 | 刘智勇 | Photocatalyst coating filtering net |
| CN103937197A (en) * | 2014-02-14 | 2014-07-23 | 东莞市想联实业投资有限公司 | Polyurethane synthetic resin for preparing traceless glue sticker and traceless glue sticker prepared by applying polyurethane synthetic resin |
-
2014
- 2014-09-30 CN CN201410521221.3A patent/CN104353304A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101275519A (en) * | 2007-12-28 | 2008-10-01 | 郭安民 | Improved polyurethane air filter core |
| CN201132091Y (en) * | 2007-12-28 | 2008-10-15 | 郭安民 | Improved cuboid polyurethane filter core of air cleaner |
| CN201263941Y (en) * | 2008-09-10 | 2009-07-01 | 杨卫 | Dustproof ventilated net |
| US20110220134A1 (en) * | 2008-09-16 | 2011-09-15 | Martin Duke | Filter For A Smoking Article |
| CN101725086A (en) * | 2009-12-11 | 2010-06-09 | 中材科技股份有限公司 | High-temperature resistant air filter paper and preparation method thereof |
| CN102824800A (en) * | 2011-06-15 | 2012-12-19 | 苏州波塞顿节能环保工程有限公司 | Polyvinyl chloride filter core |
| CN202741002U (en) * | 2012-06-27 | 2013-02-20 | 刘智勇 | Photocatalyst coating filtering net |
| CN103937197A (en) * | 2014-02-14 | 2014-07-23 | 东莞市想联实业投资有限公司 | Polyurethane synthetic resin for preparing traceless glue sticker and traceless glue sticker prepared by applying polyurethane synthetic resin |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104799450A (en) * | 2015-04-08 | 2015-07-29 | 广西师范大学 | Haze-preventing respirator and production method thereof |
| CN106181668A (en) * | 2016-07-19 | 2016-12-07 | 柳州首光科技有限公司 | A kind of energy-efficient filter-type crystalline substance evil spirit slabstone machine for automatically polishing |
| CN106181776A (en) * | 2016-07-19 | 2016-12-07 | 柳州首光科技有限公司 | A kind of energy efficient filtration type crystalline substance evil spirit slabstone machine for automatically polishing based on Internet of Things |
| CN106215551A (en) * | 2016-08-31 | 2016-12-14 | 朱凤兮 | A kind of self-cleaning nona fiber filter material |
| CN108079662A (en) * | 2016-11-21 | 2018-05-29 | 宜兴市帝洲新能源科技有限公司 | A kind of screen material of household electrical appliance |
| CN107178795A (en) * | 2017-05-18 | 2017-09-19 | 浙江中力工具制造有限公司 | A kind of biomass fireplace with humidifier |
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Application publication date: 20150218 |
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