CN207356720U - A kind of low impedance high efficient energy air filting material - Google Patents
A kind of low impedance high efficient energy air filting material Download PDFInfo
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- CN207356720U CN207356720U CN201720381073.9U CN201720381073U CN207356720U CN 207356720 U CN207356720 U CN 207356720U CN 201720381073 U CN201720381073 U CN 201720381073U CN 207356720 U CN207356720 U CN 207356720U
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Abstract
The utility model discloses a kind of low impedance high efficient energy air filting material, belong to filtering material field.The air filting material reduces resistance during air filting material work, reduces energy consumption while filter efficiency is ensured.The air filting material of the utility model, including basic unit and film layer, film layer is fixedly connected on substrate surface, and the basic unit is nonwoven needled filter felt, and film layer is sprayed on the nano-fiber nonwoven layer of substrate surface repeatedly to move in circles using electrostatic spinning process.
Description
Technical field
A kind of air filting material is the utility model is related to, it particularly relates to a kind of low impedance high efficient energy air filtration
Material.
Background technology
The effect of air filting material is to be intercepted by fiber and catch dust, to reach gas solid separation purpose.Air mistake
Filter material material can intercept the dust in air.Usually, in order to improve filter efficiency, air filting material is prepared very
It is fine and close.Although fine and close air filting material can improve filter efficiency, resistance when air filting material works is very big,
Cause energy consumption very high.The air filting material applied now is mostly to have high efficiency, the performance characteristic of high energy consumption.
Utility model content
Technical problem to be solved in the utility model is：A kind of low impedance high efficient energy air filting material is provided, true
While protecting filter efficiency, resistance during air filting material work is reduced, reduces energy consumption.
In order to solve the above technical problems, the utility model embodiment uses following technical scheme：
A kind of low impedance high efficient energy air filting material, including basic unit and film layer, film layer are fixedly connected on basic unit's table
Face, the basic unit are nonwoven needled filter felt, and film layer is nano-fiber nonwoven layer.
As preference, the grammes per square metre of the basic unit is 80~150g/ ㎡.
As preference, the film layer is 2~4 layers of nano-fiber nonwoven layer.
As preference, the film layer is repeatedly moved in circles using electrostatic spinning process to be sprayed on substrate surface and is formed.
As preference, the film layer grammes per square metre is 3~12g/ ㎡.
Compared with prior art, the air filting material of the utility model embodiment, while filter efficiency is ensured, drop
Resistance during low air filting material work, reduces energy consumption.The utility model embodiment is by high-intensity low-gramweight nonwoven needled
Filter felt and nano-fiber film it is compound.Nonwoven needled filter felt porosity as supporter is high, can not be used as filtering
Form of medium exists.But nonwoven needled filter felt solves the problems, such as that Electrospun nano-fibers intensity is low well.Through
The extruding of overtension roller and the chilling of condensation rollers but, can strengthen nano-fiber film layer and nonwoven needled filter felt adhesive force,
Nano-fiber film layer is further avoided to come off.
Brief description of the drawings
Fig. 1 is the sectional view of the utility model embodiment.
Have in figure：Basic unit 1, film layer 2.
Embodiment
The technical solution of the utility model embodiment use is described in detail below.
A kind of low impedance high efficient energy air filting material that the utility model embodiment provides, including basic unit 1 and film layer
2.Film layer 2 is fixedly connected on 1 surface of basic unit, and the basic unit 1 is nonwoven needled filter felt, and film layer 2 is non-for nanofiber
Weaving layer.
As preference, film layer 2 is repeatedly moved in circles using electrostatic spinning process and is sprayed on 1 surface of basic unit and is formed.It is thin
Film layer 2 is 2~4 layers of nano-fiber nonwoven layer.
In the embodiment, the dust in air is filtered by basic unit and film layer.The grammes per square metre of basic unit for 80~
150g/ ㎡, film layer grammes per square metre are 3~12g/ ㎡, the Ke/㎡ of air filting material grammes per square metre≤200.In this way, compared to more existing gram
The great dust removal and filtration Nomex in 450g/ ㎡, the air filting material of the application are the material of ultralow gram weight.Therefore, this Shen
Please air filting material filter efficiency higher, meanwhile, impedance smaller.
The preparation method of the air filting material of above-described embodiment, including：
Step 10）The fiber of two kinds of different melting points is fed intake into hopper, mix is uniform, and networking is combed through carding machine；Through
After acupuncture consolidation, needle fabric is formed.
Wherein, step 10）In, the fiber of two kinds of different melting points refers to PET staple fibers and PP staple fibers.Preferably, institute
The thickness for stating PET staple fibers is 1.5D, and the thickness of PP staple fibers is 1.35D, and PET staple fibers and the PP staple fibers of 1.35D are pressed
According to mass ratio 1:1 is mixed.
Step 20）Needling non-woven is arranged into baking oven, penetrates needle fabric using hot wind, and make acupuncture is non-to knit
Make cloth and be in semi-molten state；Then needle fabric is sent to cold roll under the action of convoying curtain, carries out fast quickly cooling
Swash sizing, form the nonwoven needled filter felt as basic unit.
Wherein, step 20）In, preferably, needle fabric is inserted in baking oven according to 3 meters per minute of speed.
The melting temperature of the temperature of the hot wind fiber more relatively low than fusing point is 8~12 DEG C low.When hot blast temperature is set and melting temperature phase
When melting temperature, fiber can melt, so the melting temperature low 8 of the temperature of the hot wind fiber more relatively low than fusing point
~12 DEG C, when needle fabric is in semi-molten state, form did not both change, also easily bonding between fiber.Gram of basic unit
It is preferably 80~150g/ ㎡ again.
Needle fabric is sent to cold roll under the action of convoying curtain, carries out quick cold shock sizing.In this process
In, it is subject to the low-melting fiber of condensation can form consolidation obvolvent with high-melting fibre rapidly, makes fiber because melt bonded
Net consolidation, high intensity can be realized by being formed under low grammes per square metre state.And it can make between bicomponent fibers by cold roll chilling
Obvolvent is even closer, and intensity further improves, and reduces elongation, it is possessed the support as nano-fiber film material
Body form exists.The effect of cold roll also makes needle fabric surface more smooth, is that nanofiber is uniform on its surface
Sedimentation provides condition.
Step 30）Basic unit is wound with storage cloth holder, storage cloth is placed at 50~75 cm of electrospinning device front end,
Carrier using basic unit as electrostatic spinning injection silk.
Preferably, step 30）In, basic unit is wound with storage cloth holder by speed 2.5m/min.
Step 40）Using needle-less electrospinning device, using solution electrostatic spinning process, nanofiber is sprayed to base
Layer surface, nanofiber are settled down to substrate surface, and by repeatedly moving in circles injection, in substrate surface formation, nanofiber is non-knits
Make layer；Basic unit containing nano-fiber nonwoven layer is extruded and rapid condensation, and it is hot rolled compound, make nanofiber non-
Weaving layer is chimeric with basic unit, so that air filting material be made.
Preferably, the step 40）In, nano-fiber nonwoven layer is to be superimposed 2~4 in substrate surface by nanofiber
Layer is formed.Using in solution electrostatic spinning process, the winding speed of basic unit is 2.5m/min.Film layer grammes per square metre is 3~12g/ ㎡,
The Ke/㎡ of air filting material grammes per square metre≤200.
Basic unit containing nano-fiber nonwoven layer is extruded, can be realized by jockey pulley.By squeezing action,
Nanofiber can be increased fully to be complexed with the fiber in nonwoven needled filter felt before condensation.Then the urgency Jing Guo condensation rollers
Cooling, is improved nano-fiber film drafting force.The filtering material that will be covered with micro/nano-fibre non-woven film passes through heat
Roll hot rolling, makes micro/nano-fibre non-woven film more firmly be entrenched togather with basic unit, avoids micro/nano-fibre non-woven thin
Film comes off from substrate surface.
Air filting material prepared by above-described embodiment, the grammes per square metre of basic unit is 80~150g/ ㎡.Basic unit is high for ultralow gram weight
Intensity Nomex.Carrier of the basic unit as film layer, solves the strength problem of nanofiber itself.
Conventional air filter material is the filter element based on the non-woven cloth of acupuncture or spun lacing method preparation, to increase
Add material grammes per square metre and consistency to reach high efficiency, high grammes per square metre and larger consistency cause gas permeability to decline, and resistance is big.In order to
Filter efficiency is further improved, in film adhered one layer of non-woven surfaces using PTFE microporous membranes prepared by drawing method as into one
Walk safeguard, resistance is further lifted, and drawing method prepare microporous barrier relative to Electrospun nano-fibers film and
Speech, hole is uneven, also declines permeability, and resistance is big.The filter efficiency of film layer and resistance in the utility model embodiment
Power can adjust the superposition number of plies as needed to adjust, and densification is improved without the needle fabric by being used as support unit
Property and grammes per square metre are realized.The filter layer of air filting material is greatly lowered in this, reduces material consumption and filtration resistance.
In the preparation method of the utility model embodiment, step 40）Using the injection that repeatedly moves in circles, in substrate surface shape
Into nano-fiber nonwoven layer.By rationally setting the superposition number of plies of the nanofiber in basic unit, it is ensured that air filting material
Filter efficiency and the requirement for reducing resistance.Step 40）In, nanofiber is directly sprayed and is deposited in substrate surface, uncooled
Before impose the technique that forces of machinery, uniformity, permeability and the hole mesh number of hole is ensured.Pass through rapid condensation and warp
Method hot rolling, makes nano-fiber nonwoven layer chimeric with basic unit, overcomes the problem that film layer easily comes off from basic unit.
The air filting material of the utility model embodiment, film layer is provided with substrate surface, relative to not passing through film
For general acupuncture and spun lacing filtering material prepared by filtering technique, the air filting material filtering accuracy of the present embodiment is protected
Hold higher standard.
In the preparation method of the utility model embodiment, the nanofiber prepared by using solution electrostatic spinning process is non-
Weaving layer, for the PTFE membrane filtration materials prepared using drawing method, hole is more uniform, micropore hole mesh number it is more and
Film is to the permeability of air-flow also higher.
Using solution electrospun film fiber, the nano-scale fiber of 60nm is less than particularly with diameter, is had to particulate matter well
Linear longitudinal slip effect feature, make filtering pressure drop reduction.
Filtration pressure is reduced different from common micron with inertial impaction of higher level's fiber to particulate matter, the present embodiment, institute
Other filter mediums are significantly lower than with overall drag.Low energy consumption for efficient dust filtering equipment realizes guarantee on material.
The utility model embodiment, is heated and consolidated through high temperature using two kinds of melting-point fibers, by Electrospun nano-fibers
Injection is to nonwoven fabric surface and does superimposed layer, and coagulated by chilling makes film and the fiber of basic unit fully chimeric with surface negative pressure, keeps away
Exempt from membrane material to come off.And the prior art is that fiber is prepared into the non-of high fine and close high grammes per square metre >=400g/ ㎡ by combing, acupuncture consolidation
Woven cloths, the function of the non-woven cloth is to filter as the main purpose.Overlay film will be avoided to make to further improve filter efficiency
Preparation process for further option, and film is prepared by drawing method, and hole is uneven.Filter material manufactured in the present embodiment
Material, is the smooth effect of the nano-scale fiber prepared with solwution method, and the resistance caused air flow through is less than ordinary filter fiber（Directly
Footpath is more than 500nm）The resistance of air-flow is intercepted.The utility model embodiment has overturned the efficient high resistant of conventional films filtering material
Structural issue, make it possible high-effect, the lower resistance of filtrate.
The air filting material of the utility model embodiment can be used as heart-filter bag of industrial sack cleaner, can
The common fault of industrial bag-type dust collecting equipment high energy consumption is solved, industrial pocket type dust filtration equipment more can while minimum discharge is realized
Realize low energy consumption, achieve the purpose that really energy saving.The utility model embodiment can also be used for central ventilation system dust filtering and HVAC
Air conditioning filter, can also prepare haze screen window and haze and industrial security protection mask and industrial filter core, filter material for air filters.
Specific embodiment is enumerated below, has verified that the utility model has high intensity, lower resistance and high filtration performance.
Example 1
A kind of preparation method of low impedance high efficient energy air filting material, including：
Step 10）The fiber of two kinds of different melting points is fed intake into hopper, mix is uniform, and networking is combed through carding machine；Through
After acupuncture consolidation, needle fabric is formed；Described two different melting points are the PET staple fibers that thickness is 1.5D and thickness is
The PP staple fibers of 1.35D, and PET staple fibers and the PP staple fibers of 1.35D are according to mass ratio 1:1 is mixed.
Step 20）Needle fabric is inserted in baking oven according to 3 meters per minute of speed, it is non-to penetrate acupuncture using hot wind
Woven cloths, and needle fabric is in semi-molten state；Then needle fabric is transmitted under the action of convoying curtain
To cold roll, quick cold shock sizing is carried out, forms the nonwoven needled filter felt as basic unit；The temperature of the hot wind compares fusing point
The melting temperature of relatively low fiber is 8 DEG C low.
Step 30）Basic unit is wound with storage cloth holder by speed 2.5m/min, before storage cloth is placed on electrospinning device
Hold at 50~75 cm, the carrier using basic unit as electrostatic spinning injection silk；
Step 40）Using needle-less electrospinning device, using solution electrostatic spinning process, the winding speed of basic unit is
2.5m/min, nanofiber is sprayed to substrate surface, nanofiber and is settled down to substrate surface, by the spray that repeatedly moves in circles
Penetrate, 4 layers of nano-fiber nonwoven layer are formed in substrate surface；Basic unit containing nano-fiber nonwoven layer is subjected to extruding and fast
Quickly cooling is coagulated, and hot rolled compound, makes nano-fiber nonwoven layer chimeric with basic unit, so that air filting material be made.
Air filting material grammes per square metre made of examples detailed above is 160 Ke/㎡.
Comparative example 1
Existing air filting material, material are terylene micropore film filtrate, and grammes per square metre is 460 Ke/㎡.
Carry out strength test, filter efficiency test and resistance measurement respectively to example 1 and comparative example 1.Wherein, strength test
Carried out according to the method for state label GB/T6719-2009.Filter efficiency test according to state label GB/T6719-2009 method into
OK.Resistance measurement is carried out according to the method for state label GB/T6719-2009.Test result is as shown in table 1.
Table 1
As can be seen from Table 1：The intensity and filter effect of example 1 and comparative example 1 are essentially identical, but 1 resistance system of example
Number only has 1/3 or so of comparative example 1.As it can be seen that the resistance of the air filting material of this example 1 substantially reduces.
The basic principle, main feature and advantage of the utility model has been shown and described above.Those skilled in the art
It should be appreciated that limitation of the utility model from above-mentioned specific embodiment, the description in above-mentioned specific embodiment and specification is only
It is the principle in order to further illustrate the utility model, on the premise of not departing from the spirit and scope of the utility model, this practicality
New also to have various changes and modifications, these various changes and improvements fall within the scope of the claimed invention.This reality
With new claimed scope by claims and its equivalent thereof.
Claims (2)
1. a kind of low impedance high efficient energy air filting material, it is characterised in that including basic unit (1) and film layer (2), film layer
(2) basic unit (1) surface is fixedly connected on, the basic unit (1) is nonwoven needled filter felt；The grammes per square metre of the basic unit (1) is 80
~150g/ ㎡；Film layer (2) is nano-fiber nonwoven layer；The film layer (2) is repeatedly circulated past using electrostatic spinning process
Basic unit (1) surface is sprayed on again to be formed；The film layer (2) is 2~4 layers of nano-fiber nonwoven layer.
2. low impedance high efficient energy air filting material described in accordance with the claim 1, it is characterised in that the film layer (2) gram
Weight is 3~12g/ ㎡.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720381073.9U CN207356720U (en) | 2017-04-12 | 2017-04-12 | A kind of low impedance high efficient energy air filting material |
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| CN201720381073.9U CN207356720U (en) | 2017-04-12 | 2017-04-12 | A kind of low impedance high efficient energy air filting material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112921708A (en) * | 2019-12-05 | 2021-06-08 | 广州华创化工材料科技开发有限公司 | High-efficiency low-resistance surface filtering material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112921708A (en) * | 2019-12-05 | 2021-06-08 | 广州华创化工材料科技开发有限公司 | High-efficiency low-resistance surface filtering material and preparation method thereof |
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