CN108744713A - A kind of the ultrasonic wave sputtering liquid charging unit and charging method of electret - Google Patents
A kind of the ultrasonic wave sputtering liquid charging unit and charging method of electret Download PDFInfo
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- CN108744713A CN108744713A CN201810490873.3A CN201810490873A CN108744713A CN 108744713 A CN108744713 A CN 108744713A CN 201810490873 A CN201810490873 A CN 201810490873A CN 108744713 A CN108744713 A CN 108744713A
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- liquid
- electret
- roll shaft
- liquid tank
- slot bottom
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
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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
- B01D2239/0435—Electret
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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
- B01D2239/10—Filtering material manufacturing
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- Chemical Kinetics & Catalysis (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Physical Vapour Deposition (AREA)
Abstract
The invention discloses a kind of ultrasonic wave of electret sputtering liquid charging unit and charging methods.In the ultrasonic wave sputtering charging unit of the electret, the trapezoidal shape of liquid tank, liquid tank slot bottom is horizontal by 20-65 ° of angle, can liquid tank be entered from liquid tank slot bottom lower end by unwinding device by the material of electret, being made by the first roll shaft and the second roll shaft can be by electret material attachment in liquid tank slot bottom, simultaneously to equipped with polar liquid and can by the liquid tank slot bottom of the material of electret apply ultrasonic wave, it can be gone out by the material of electret after liquid tank and be dried through drying device, the electret after being charged.This method can be by adjusting the first roll shaft, and the second roll shaft is at a distance from liquid tank slot bottom, and changes the gradient of liquid tank slot bottom, and simple, efficient, stable and uniform charging can be carried out by electret to different-thickness unlike material MULTILAYER COMPOSITE.
Description
Technical field
The present invention relates to the liquid charging unit and charging method of electret, the ultrasonic wave of specifically a kind of electret sputters
Liquid device and charging method.
Background technology
Conventional air filter material relies primarily on Blang's diffusion, interception effect, inertial collision and gravity natural subsidence etc.
Physical mechanical acts on stopping the particle in air.At present in air filting material field, the efficient low-resistance of material is pursued, and energy
The air filting material for enough reaching efficient low-resistance is nearly all to use electret material.By electret treated material, for sky
Gas filters its filtration other than physical mechanical acts on, also electrostatic adsorption.Electret is ensureing same mistake
Under the premise of filtering efficiency, the pore size of electret filter material can be bigger than the hole of common filtering material, compares traditional filtering
The pressure difference of device can reduce 20-80 times.
China Patent Publication No. CN1129963A, publication date are August in 1996 28, entitled " to make electret mistake
The method of filter medium charging ", this method is that be injected in thermoplasticity by using the water column or water droplet stream of certain pressure non-conductive micro-
On the nonwoven substrates of fiber, nonwoven substrates are enable to capture a large amount of charges, the method for this " spraying charging " is to staple fiber weight
Amount accounts for the material of 90% or more nonwoven substrates weight, and effect is fine, but nonwoven substrates water column that long fibre is formed or
Water droplet stream impact forces are inadequate so that and nonwoven substrates carried charge is reduced, and in order to improve the filter efficiency of base material, it needs to increase
The pressure of add water post or water droplet stream increases the cost and complexity of process equipment.
Chinese patent publication No. CN1518619A, publication date are August in 2004 4, it is entitled " electret processing
Manufacturing method and device ", the patent make suction using the method for " water suction charging " while non-conductive fiber sheet stock migrates
The crosscutting sheet stock width direction of mouth contacts, and is that the sheet stock surface of the opposite side of contact site contacts or is impregnated in the water surface
In water, carrying out suction to water with the suction nozzle makes to penetrate along sheet stock direction.To make to be impregnated with water in the non-conductive fibers sheet stock, make
It obtains fibre sheet material and carries a large amount of charge, the non-conductive fiber sheet stock is dried later.It should " water suction charging " method tool
Have that liquid penetration is strong, electret processed goods can fully be acted on, but due to being contacted with electret processed goods by suction nozzle
The area of water suction is small, and the penetrability of liquid is too strong, and destruction is easy tod produce to relatively low, thinner thickness the electret processed goods of strength.
China Patent Publication No. CN106964199A, publication date are on July 21st, 2017, entitled " electret material
The liquid charging method and device of material ", the method for " the liquid centrifugal atomization charging " which uses, when with roller inner cylinder rotating
It drives surrounding liquid to generate centrifugal atomization, makes that the penetration power of liquid is stronger, evenly when not destroying base material；It simultaneously can electret
Porous substrate docile improve the contact area of liquid and base material in a liquid in outer surface of cylinder and soaking and make charging more
Uniformly.The method there are one on condition that " make when not destroying base material the penetration power of liquid stronger, evenly " to difference
The electret of thickness unlike material MULTILAYER COMPOSITE, the precondition that reach above-mentioned is more complicated and difficult, especially to multilayer
The adaptability of compound electret is bad.
Invention content
In view of the above-mentioned problems, the object of the present invention is to provide a kind of mixed to long fibre, staple fiber or long and short fiber to form
Electret and different-thickness unlike material MULTILAYER COMPOSITE electret, especially thickness is thin, the low electret of strength carry out it is simple,
Efficiently, liquid charging unit and charging method uniform and that do not damage electret.
To achieve the goals above, its technical solution is as follows.
A kind of ultrasonic wave sputtering liquid charging unit of electret, including the unwinding device in the charging of electret liquid, volume
Winding apparatus, liquid charging unit and drying device, the trapezoidal shape of liquid tank in the charging unit, liquid tank slot bottom with it is horizontal
The angle in face is 20-65 °, and the both ends of liquid tank slot bottom are respectively arranged with the first roll shaft, the second roll shaft, the first roll shaft and the second roller
The center line of axis is parallel with inclined liquid tank slot bottom, the first roll shaft, the second roll shaft vertical height adjustable from liquid tank slot bottom
Degree range is 0.5mm-50mm, and the centre-to-centre spacing of the first roll shaft and the second roll shaft is 0.5-2m, and the side wall of liquid tank offers out
Liquid mouth, inlet, liquid outlet are located at the lower section of the first roll shaft central horizontal line, and inlet is located at the second roll shaft central horizontal line
Top is close to be provided with the supersonic generator that power is 500-5000w below liquid tank slot bottom, in liquid charging unit and volume
The drying device being made of microwave drying device is set between winding apparatus.
A kind of ultrasonic wave sputtering liquid charging method of electret, the charging method include：By the material of electret, pass through
Unwinding device is that 1-50m/min enters the liquid tank equipped with polar liquid from liquid tank slot bottom lower end with line rate, by electret
Material first passes through the lower section of the first roll shaft, then the lower section through the second roll shaft, by adjusting the first roll shaft, the second roll shaft and liquid tank
The distance of slot bottom so that by the material attachment of electret in liquid tank slot bottom, inlet rate of influx is the polar liquid of 5-30m/min
Body, polar liquid is flowed out from liquid outlet, while being applied to the liquid tank slot bottom equipped with the material by electret being impregnated with by polar liquid
Add the power to be the ultrasonic wave of 500-5000w, ul-trasonic irradiation in attach liquid tank slot bottom by polar liquid be impregnated with by electret
Material causes polar liquid high-frequency vibration, the quilt that the polar liquid of high-frequency vibration is impregnated with to attaching liquid tank slot bottom by polar liquid
The material of electret is impacted, and is dried through drying device after being come out from liquid tank by the material of electret, staying after being charged
Polar body.
The material by electret is that natural fiber or chemical fibre composition or natural fiber mix group with chemical fibre
At single-layer or multi-layer porous sheet material.
The polar liquid is the mixture of deionized water or ethyl alcohol or both.
Due to using the technology described above, the ultrasonic wave sputtering liquid charging method and device of a kind of electret of the present invention,
Its advantageous effects is：
(1) by adjusting the first roll shaft at a distance from the second roll shaft and liquid tank slot bottom, different-thickness unlike material can be made
The charging effect for the electret that the electret and long fibre of MULTILAYER COMPOSITE, staple fiber or length/staple fiber mix composition is non-
It is often uniform and stable, it is very extensive to the applicability of the electret of different component unlike material different-thickness, and electret side
Formula is simple, efficient, electret can be made to charge；
(2) present invention uses inclined liquid tank slot bottom, it is ensured that has company by the material of electret by what polar liquid was impregnated with
The continuous new polar liquid for not making the used material by electret, while inclined liquid tank slot bottom can pass through different inclinations
Angle, adjusts the flowing velocity of the new polar liquid of high-frequency vibration, so the new polar liquid for adjusting high-frequency vibration act on by
The time of the material of electret can be improved in this way by the carried charge and charging uniformity of the material of electret；
(3) present invention is especially thin to thickness, and for the low material by electret of strength in charging, physical force is soft,
It will not damage by the strength of the material of electret.
Description of the drawings
Fig. 1 is that the ultrasonic wave of electret sputters the schematic diagram of liquid charging process.
Specific implementation mode
Present invention is further described in detail for explanation below in conjunction with the accompanying drawings, sees attached drawing.
A kind of ultrasonic wave sputtering liquid charging unit of electret, including the unwinding device in the charging of electret liquid, volume
Winding apparatus, liquid charging unit and drying device, the 3 trapezoidal shape of liquid tank in the charging unit, 3 slot bottom of liquid tank and water
The angle of plane is 20-65 °, and the both ends of 3 slot bottom of liquid tank are respectively arranged with the first roll shaft 4, the second roll shaft 5,4 He of the first roll shaft
The center line of second roll shaft 5 is parallel with 3 slot bottom of inclined liquid tank, and the first roll shaft 4, the second roll shaft 5 are adjustable from 3 slot bottom of liquid tank
The vertical span of section is 0.5mm-50mm, and the centre-to-centre spacing of the first roll shaft 4 and the second roll shaft 5 is 0.5-2m, liquid tank
Side wall offers liquid outlet 6, inlet 7, and liquid outlet 6 is located at the lower section of 4 central horizontal line of the first roll shaft, and inlet 7 is located at the
The top of two roll shafts, 5 central horizontal line is close to be provided with the ultrasonic wave generation that power is 500-5000w below 3 slot bottom of liquid tank
The drying device 9 being made of microwave drying device is arranged in device 8 between liquid charging unit and winding device 10.
The material of the first roll shaft 4 and the second roll shaft 5 in the present invention, can make insulating materials, be preferably selected ceramics or stone
English.
The first roll shaft 4, the second roll shaft 5 in the present invention are from the adjustable vertical span of 3 slot bottom of liquid tank
0.5mm-50mm is defined by the thickness of the material of electret also in 0.5mm-50mm.
It can be single group or multigroup that the microwave drying device of drying device 9 is formed in the present invention.
A kind of ultrasonic wave sputtering liquid charging method of electret, the charging method include：By the material 11 of electret, lead to
Cross unwinding device 1 with line rate be 1-50m/min from 3 slot bottom lower end of liquid tank enter equipped with polar liquid liquid tank 3, by
The material 11 of pole first passes through the lower section of the first roll shaft 4, then the lower section through the second roll shaft 5, by adjusting the first roll shaft 4, the second roller
Axis 5 is at a distance from 3 slot bottom of liquid tank so that by the material attachment of electret in 3 slot bottom of liquid tank, 6 rate of influx of inlet is 5-
The polar liquid of 30m/min, polar liquid are flowed out from liquid outlet 7, while to equipped with the material by electret being impregnated with by polar liquid
3 slot bottom of liquid tank of material 11 applies the ultrasonic wave that power is 500-5000w, and ul-trasonic irradiation is in attaching 3 slot bottom of liquid tank by pole
Property liquid immersion caused polar liquid high-frequency vibration by the material 11 of electret, the polar liquid of high-frequency vibration is to attaching liquid tank
3 slot bottoms are impacted by what polar liquid was impregnated with by the material 11 of electret, are passed through after being come out from liquid tank 3 by the material 11 of electret
Drying device 9 is dried, the electret after being charged.The material by electret forms for natural fiber or chemical fibre, or
Person's natural fiber mixes the single-layer or multi-layer porous sheet material of composition with chemical fibre.The polar liquid be deionized water or
The mixture of ethyl alcohol or both.
It is needed before entering liquid tank by corona discharge assembly 2 carries out at corona by the material of electret in the present invention
Reason.
It is thicker by 11 thickness of the material of electret in the present invention, it needs the time charged in liquid charging unit longer, drops
The line rate of the low material by electret be 1-50m/min and the first roll shaft 4, the centre distance 0.5-2m of the second roll shaft 5 come
Extend the time charged in liquid charging unit, by increasing 20-65 ° of the angle of inclined liquid tank 3, increases polar liquid
The speed 5-30m/min of the inflow and power 500-5000w for increasing ultrasonic generator, come increase polar liquid to by
The electret intensity of the material of pole.
Embodiment 1
The schematic diagram of liquid charging process, 50mm single layered porous natural fibers are sputtered according to the ultrasonic wave that Fig. 1 is electret
Flaky material with line rate is 1m/min by unwinding device, first passes through corona unit and carries out sided corona treatment, from 65 ° of inclination liquid
Body slot slot bottom lower end enters the liquid tank equipped with deionized water, in the first roll shaft of ceramic making and the second roll shaft of ceramic making
The distance between heart line is 2m, by adjusting the first roll shaft of ceramic making, the second roll shaft and liquid tank slot bottom of ceramic making
Vertical range be 50mm so that first pass through the lower section of the first roll shaft of ceramic making, then the second roll shaft through ceramic making
The 50mm single layered porous natural fiber flaky materials of lower section are attached at liquid tank slot bottom, while to equipped with being impregnated with by deionized water
The liquid tank slot bottoms of 50mm single layered porous natural fiber flaky materials applies the ultrasonic wave that power is 5000w, ul-trasonic irradiation in
Deionized water high-frequency vibration, high-frequency vibration is caused to go by the 50mm single layered porous natural fiber flaky materials that deionized water is impregnated with
Ionized water impacts the 50mm single layered porous natural fiber flaky materials being impregnated with by deionized water, when by 50mm single layered porous
Natural fiber flaky material is dried after being come out from liquid tank through drying device, and the uniform and stable electret of charging effect is obtained.
Embodiment 2
The schematic diagram of liquid charging process, the multi-layer porous chemical fibres of 0.5mm are sputtered according to the ultrasonic wave that Fig. 1 is electret
Flaky material with line rate is 10m/min by unwinding device, first passes through corona unit and carries out sided corona treatment, from 20 ° of inclination liquid
Body slot slot bottom lower end enters the liquid tank equipped with ethyl alcohol, the second roll shaft center line that the first roll shaft that quartz makes makes with quartz
The distance between be 0.5m, pass through the first roll shaft for adjusting quartz and making, the second roll shaft and liquid tank slot bottom that quartz makes
Vertical range is 0.5mm so that first passes through the lower section of the first roll shaft of quartz making, then under the second roll shaft made through quartz
The chemical fibre material that the 0.5mm of side is multi-layer porous is attached at liquid tank slot bottom, while to more equipped with the 0.5mm being impregnated with by ethyl alcohol
The liquid tank slot bottom of layer porous chemical fiber sheet material applies the ultrasonic wave that power is 500w, and ul-trasonic irradiation is soaked in by ethyl alcohol
The multi-layer porous chemical fibre flaky materials of saturating 0.5mm cause ethyl alcohol high-frequency vibration, and the ethyl alcohol of high-frequency vibration by ethyl alcohol to being impregnated with
The multi-layer porous chemical fibre flaky materials of 0.5mm impacted, when the multi-layer porous chemical fibre flaky materials of 0.5mm are from liquid
Slot is dried after coming out through drying device, and the uniform and stable electret of charging effect is obtained.
Embodiment 3
According to Fig. 1 be electret ultrasonic wave sputter liquid charging process schematic diagram, polar liquid be deionized water with
The mass ratio of ethyl alcohol is 30:70 deionized water/alcohol mixeding liquid, the multi-layer porous natural fibers of 5mm are mixed with chemical fibre
Flaky material with line rate is 50m/min by unwinding device, first passes through corona unit and carries out sided corona treatment, from 45 ° of inclination liquid
Body slot slot bottom lower end enters the liquid tank equipped with deionized water/alcohol mixeding liquid, and the first roll shaft that quartz makes makes with quartz
The distance between the second roll shaft center line be 1m, pass through the first roll shaft for adjusting quartz and making, the second roll shaft that quartz makes
Vertical range with liquid tank slot bottom is 5mm so that the lower section of the first roll shaft of quartz making is first passed through, then made through quartz
The flaky material that the multi-layer porous natural fibers of 5mm of the lower section of second roll shaft are mixed with chemical fibre is attached at liquid tank slot bottom,
Sheet to being mixed with chemical fibre equipped with the multi-layer porous natural fibers of 5mm being impregnated with by deionized water/alcohol mixeding liquid simultaneously
The liquid tank slot bottom of material applies the ultrasonic wave that power is 3000w, and ul-trasonic irradiation is impregnated in by deionized water/alcohol mixeding liquid
The flaky material that is mixed with chemical fibre of the multi-layer porous natural fibers of 5mm cause deionized water/alcohol mixeding liquid high-frequency vibration,
Deionized water/alcohol mixeding liquid of high-frequency vibration is to the multi-layer porous natural fibers of the 5mm being impregnated with by deionized water/alcohol mixeding liquid
The flaky material mixed with chemical fibre is impacted, when the sheet material that the multi-layer porous natural fibers of 5mm are mixed with chemical fibre
Material is dried after being come out from liquid tank through drying device, and the uniform and stable electret of charging effect is obtained.
Claims (4)
1. a kind of ultrasonic wave sputtering liquid charging unit of electret, including the unwinding device in the charging of electret liquid, winding
Device, liquid charging unit and drying device, it is characterised in that：Liquid tank (3) trapezoidal shape in the charging unit, liquid
The angle of slot (3) slot bottom and horizontal plane is 20-65 °, and the both ends of liquid tank (3) slot bottom are respectively arranged with the first roll shaft (4), second
The center line of roll shaft (5), the first roll shaft (4) and the second roll shaft (5) is parallel with inclined liquid tank (3) slot bottom, the first roll shaft
(4), the second roll shaft (5) is 0.5mm-50mm, the first roll shaft (4) from the adjustable vertical span of liquid tank (3) slot bottom
Centre-to-centre spacing with the second roll shaft (5) is 0.5-2m, and the side wall of liquid tank offers liquid outlet (6), inlet (7), liquid outlet (6)
Positioned at the lower section of the first roll shaft (4) central horizontal line, inlet (7) is located at the top of the second roll shaft (5) central horizontal line, is close to
The supersonic generator (8) that power is 500-5000w is provided with below liquid tank (3) slot bottom, in liquid charging unit and winding
The drying device (9) being made of microwave drying device is set between device (10).
2. the ultrasonic wave of electret a kind of sputters liquid charging method, which is characterized in that the charging method includes：By electret
Material (11) is entered from liquid tank (3) slot bottom lower end for 1-50m/min with line rate by unwinding device (1) and polar liquid is housed
The liquid tank (3) of body, the lower section of the first roll shaft (4), then the lower section through the second roll shaft (5) are first passed through by the material (11) of electret,
By adjusting the first roll shaft (4), the second roll shaft (5) at a distance from liquid tank (3) slot bottom so that by the material attachment of electret in liquid
Body slot (3) slot bottom, inlet (6) rate of influx are the polar liquid of 5-30m/min, and polar liquid is flowed out from liquid outlet (7), together
When to apply power to liquid tank (3) slot bottom equipped with the material (11) by electret being impregnated with by polar liquid be 500-5000w
Ultrasonic wave, ul-trasonic irradiation cause polarity in attaching liquid tank (3) slot bottom by the material (11) by electret that polar liquid is impregnated with
Liquid high-frequency vibration, the material by electret that the polar liquid of high-frequency vibration is impregnated with to attaching liquid tank (3) slot bottom by polar liquid
Material (11) is impacted, and is dried, is charged through drying device (9) after being come out from liquid tank (3) by the material (11) of electret
Electret afterwards.
3. a kind of ultrasonic wave of electret as claimed in claim 2 sputters liquid charging method, which is characterized in that it is described by
The material (11) of pole is the single layer or more that natural fiber or chemical fibre composition or natural fiber mix composition with chemical fibre
Layer porous sheet material.
4. a kind of ultrasonic wave of electret as claimed in claim 2 sputters liquid charging method, which is characterized in that the polarity
Liquid is the mixture of deionized water or ethyl alcohol or both.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810490873.3A CN108744713B (en) | 2018-05-21 | 2018-05-21 | Ultrasonic sputtering liquid charging device and method for electret |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810490873.3A CN108744713B (en) | 2018-05-21 | 2018-05-21 | Ultrasonic sputtering liquid charging device and method for electret |
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| Publication Number | Publication Date |
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| CN108744713A true CN108744713A (en) | 2018-11-06 |
| CN108744713B CN108744713B (en) | 2021-05-14 |
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| CN201810490873.3A Active CN108744713B (en) | 2018-05-21 | 2018-05-21 | Ultrasonic sputtering liquid charging device and method for electret |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111171359A (en) * | 2020-01-07 | 2020-05-19 | 南京大学 | Method for activating polytetrafluoroethylene and application |
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| CN111171359A (en) * | 2020-01-07 | 2020-05-19 | 南京大学 | Method for activating polytetrafluoroethylene and application |
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