CN103628149B - A kind of high pressure draught auxiliary nozzle spinning electrostatic spinning apparatus - Google Patents
A kind of high pressure draught auxiliary nozzle spinning electrostatic spinning apparatus Download PDFInfo
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- CN103628149B CN103628149B CN201310606374.3A CN201310606374A CN103628149B CN 103628149 B CN103628149 B CN 103628149B CN 201310606374 A CN201310606374 A CN 201310606374A CN 103628149 B CN103628149 B CN 103628149B
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Abstract
The present invention discloses a kind of high pressure draught auxiliary nozzle spinning electrostatic spinning apparatus, belongs to electrostatic spinning field.Mainly comprise feed arrangement, air compressor machine, spinning nozzle, battery lead plate, HV generator, lapping band, hot roll and exhausting system.Spinning nozzle is made up of flow control valve, spinning nozzle main body, rotary body, solution-polymerized SBR swivel nozzle, shower nozzle gas cap and charging runner.The high pressure draught principle of melt-spraying spinning combines with centrifugal electric spinning equipment by a kind of high pressure draught of the present invention auxiliary nozzle spinning electrostatic spinning apparatus, namely solve the inefficient problem of solution electrospinning single spraying pin, overcome again the shortcomings such as melt-spraying spinning method fibre diameter is thick, die head difficulty of processing is large simultaneously.This device adopts reassembling type design, by the replacing of shower nozzle can implement device maintainable, applied widely, maintenance cost is low.
Description
Technical field
The present invention relates to a kind of high pressure draught auxiliary nozzle spinning electrostatic spinning apparatus, belong to electrostatic spinning field.
Background technology
Polymer nanofiber and composite thereof are more and more paid close attention to because the advantage such as high porosity, high-specific surface area, low-density, excellent ductility of excellence is just being subject to scientific circles.Current polymer micro-nanometer fiber technology of preparing mainly comprises matrix polymerization method, phase separation method, self-assembly method and spinning process method, wherein spinning process method comprises again meltblown, method of electrostatic spinning, centrifugal spinning, bi-component composite spinning method etc., and different technologies of preparing has himself advantage limitation relative to it.
Meltblown is the most frequently used method of current industrial production nonwoven material, is to rely on high speed, high temperature gas flow winding-up polymer melt to make it be stretched rapidly and prepare a kind of method of superfine fibre.Melt-blown process is short owing to having technological process, and production efficiency advantages of higher makes it develop rapidly, suitability for industrialized production from the seventies just enters commercial market later.But the spinneret orifice footpath of the complicated die head in addition of its internal heat runner of meltblown spinning is very little, very easily cause melt blocking in spinning process, and spinning fibre diameter is mostly 5 microns, is staple fibre.
Centrifugal spinning is that a kind of centrifugal force of being produced by the device of High Rotation Speed by polymer melt and shearing force are thrown away by pore and prepare traditional spining technology of superfine fibre.The feature of centrifugal spinning device is that it utilizes device for spinning to rotate the centrifugal force produced and carries out spinning, the surface density of made the fibre web not only good but also fibre web of uniformity is also far above the Static Spinning fibre web of areal density, but it needs to utilize external force to allow spinning nozzle rotate, and in spinning process, variable factor is wayward.
Method of electrostatic spinning, the advantages such as its adaptability to raw materials is wide, cost is low, equipment is simple, extensively being thought that the simple method efficiently of micro nanometer fiber is prepared in a kind of industrialization by academia and industrial quarters, is also the most promising process.Its general principle is, polymer solution or melt, under the effect of high-pressure electrostatic field force, form taylor cone at capillary end, and then fly to receiving system, and the solvent evaporation in solution or melt solidification, finally form superfine fibre on the reception device.Although electrostatic spinning has a extensive future, because solution electrostatic spinning uses syringe needle to spray silk mostly, output is extremely low, and the current institute of the melt electrostatic spinning fibre diameter that spins is comparatively thick and industrialization is difficult, and the development of self is all restricted.
In order to obtain better spinning fibre, some researchers attempt different spining technology to combine, if Chinese patent 201010594117.9 is in conjunction with centrifugal and electrostatic, utilizing woven wire rotation to be thrown away by melt and carry out spinning, there is melt and is fed to woven wire process problem of non-uniform in this patent.International monopoly WO 2005/033381 A2 of U. S. application proposes the device of a kind of by electroblowing spinning Hyaluronan fibers, melt-spraying spinning output is high and that electrospinning fibre diameter is thin advantage combines, although this device utilizes high pressure draught to assist solution electrostatic spinning, be beneficial to solution flow out faster, accelerate the efficiency of spinning fibre, but itself still utilizes single nozzle needle, specific yield does not have the change of matter, secondly it is only applicable to solution-polymerized SBR, can anti-limitednumber.
Summary of the invention
The present invention is under the prerequisite ensureing spinning fibre diameter fineness, to improve spinning output for target, propose a kind of high pressure draught assist under the centrifugal electric spinning equipment of spinning, the high pressure draught principle of melt-spraying spinning is combined with centrifugal electric spinning equipment, namely solve the inefficient problem of solution electrospinning single spraying pin, overcome again the shortcomings such as melt-spraying spinning method fibre diameter is thick, die head difficulty of processing is large simultaneously.This device adopts reassembling type design, by the replacing of shower nozzle can implement device maintainable, maintenance cost is low.
The technical scheme realizing above-mentioned purpose is: a kind of high pressure draught auxiliary nozzle spinning electrostatic spinning apparatus, comprise feed arrangement, air compressor machine, spinning nozzle, battery lead plate, HV generator, lapping band, hot roll, exhausting system and receiving system, air compressor machine is connected with spinning nozzle flow channel by gas flow regulating valve, feed arrangement is connected with charging runner by liquid inventory control valve, lapping band is installed on immediately below spinning nozzle, lapping band upper surface is close to by battery lead plate, connect HV generator, in order to be beneficial to the normal work of exhausting system, battery lead plate adopts mesh distribution equalizing structure, order number 20-500 order, exhausting system is in immediately below battery lead plate.
The present invention relates to a kind of high pressure draught auxiliary nozzle spinning electrostatic spinning apparatus, wherein spinning nozzle comprise for regulator solution flow control valve and control the gas control valve of gas flow rate, spinning nozzle main body, rotary body, solution-polymerized SBR swivel nozzle, the shower nozzle gas cap guiding gas flow and charging runner.For implement device is maintainable, shower nozzle adopts dismountable design, solution-polymerized SBR swivel nozzle and rotary body cavity of resorption and be all threaded connection between rotary body epicoele and nozzle body, rotary body epicoele and cavity of resorption are two parts, can realize rotating freely, shower nozzle gas cap and nozzle body are threaded connection, and shower nozzle gas cap inwall coordinates with spinning swivel nozzle outer wall the annular airflow road formed to external diffusion.
The present invention relates to a kind of high pressure draught auxiliary nozzle spinning electrostatic spinning apparatus, wherein solution-polymerized SBR swivel nozzle is tapered clamp laminar, and interlayer inside adopts whirlpool flow passage structure, can realize rotating freely under the effect of centrifugal power.
The present invention relates to a kind of high pressure draught auxiliary nozzle spinning electrostatic spinning apparatus, shower nozzle gas cap is independent design, is threaded connection with nozzle body, and coordinates the annular airflow road formed to external diffusion with spinning swivel nozzle.
The present invention relates to a kind of high pressure draught auxiliary nozzle spinning electrostatic spinning apparatus, combine melt-spraying spinning method, centrifugal spinning and method of electrostatic spinning, ensure that spinning quality and spinning efficiency simultaneously, apparatus design is easy, spinning nozzle can be changed at any time to safeguard, meet the more wide market demand.
Accompanying drawing explanation
Fig. 1 is a kind of high pressure draught auxiliary nozzle spinning electrostatic spinning apparatus general assembly schematic diagram that the present invention relates to.
Fig. 2 is the shower nozzle of solution-polymerized SBR shown in Fig. 1 schematic diagram.
Fig. 3 is the rotation body structure generalized section shown in Fig. 2.
Fig. 4 is the solution-polymerized SBR swivel nozzle generalized section shown in Fig. 2.
Fig. 5 is the solution-polymerized SBR swivel nozzle whirlpool runner schematic diagram shown in Fig. 2.
Fig. 6 is the liquation spinning nozzle gas cap generalized section shown in Fig. 2.
In figure: 1-feed arrangement; 2-air compressor machine; 3-spinning nozzle; 4-battery lead plate; 5-HV generator; 6-lapping band; 7-hot roll; 8-exhausting system; 9-receiving system; 10-liquid inventory control valve; 11-gas flow regulating valve; 12-spinning nozzle main body; 13-rotary body; 14-solution-polymerized SBR swivel nozzle; 15-shower nozzle gas cap; 16-spinning-nozzle outer wall; 17-shower nozzle gas cap inwall; 18-spinning-nozzle taper interlayer; Whirlpool runner in 19-spinning-nozzle interlayer; 20-rotary body epicoele; 21-rotary body cavity of resorption; 22-annular airflow road; 23-charging runner; 24-spinning-nozzle exports.
Detailed description of the invention
The present invention proposes a kind of high pressure draught auxiliary nozzle spinning electrostatic spinning apparatus.As shown in Figure 1, this device for spinning comprises feed arrangement 1, air compressor machine 2, spinning nozzle 3, battery lead plate 4, HV generator 5, lapping band 6, hot roll 7, exhausting system 8 and receiving system 9 to device general illustration.Air compressor machine 2 is connected with annular airflow road 22 by gas flow regulating valve 11, feed arrangement 1 is connected with charging runner 23 by liquid inventory control valve 10, lapping band 6 is installed on immediately below spinning nozzle 3, lapping band 6 upper surface is close to by battery lead plate 4, connect HV generator 5, in order to be beneficial to the normal work of exhausting system 8, battery lead plate 4 adopts mesh distribution equalizing structure, and exhausting system is in immediately below battery lead plate 4.Wherein spinning nozzle schematic diagram is as shown in figures 2-6, spinning nozzle 3 comprise for regulator solution flow liquid inventory control valve 10 and control the gas flow regulating valve 11 of gas flow rate, spinning nozzle main body 12, rotary body 13, solution-polymerized SBR swivel nozzle 14, the shower nozzle gas cap 15 guiding gas flow and charging runner 23.For implement device is maintainable, shower nozzle adopts dismountable design, solution-polymerized SBR swivel nozzle 14 and rotary body cavity of resorption 21 and be all threaded connection between rotary body epicoele 20 and spinning nozzle main body 12, rotary body epicoele and cavity of resorption are two parts, can realize rotating freely, shower nozzle gas cap 15 and spinning nozzle main body 12 are threaded connection, and shower nozzle gas cap inwall 17 coordinates the annular airflow road 22 formed to external diffusion with spinning-nozzle outer wall 16.Solution-polymerized SBR swivel nozzle 14 is tapered clamp laminar, and solution flows out from spinning-nozzle taper interlayer 18 internal interstices, and interlayer inside adopts whirlpool runner 19 structure in spinning-nozzle interlayer.
As shown in figures 1 to 6, spinning process is as follows: when carrying out solution-polymerized SBR, charging runner 23 is passed through to spinning nozzle 3 delivered solution by feed arrangement 1, apply certain pressure, charging runner 23 front end is draw form, solution forms high pressure herein, solution-polymerized SBR swivel nozzle 14 is entered subsequently by rotary body 13, hydraulic shock swivel nozzle, in spinning-nozzle interlayer, whirlpool runner 19 moves, under the effect of High-Pressure Water, form centrifugal force, thus drive solution-polymerized SBR swivel nozzle 14 automatic rotation, liquid is when in spinning-nozzle interlayer, whirlpool runner 19 is thrown out of, 24 edges can be exported at spinning-nozzle and form thread, taylor cone is formed under the effect of high-pressure electrostatic field force, enter annular airflow road 22 from the high pressure draught of air compressor machine 2 simultaneously, outwards spray in the conical surface to external diffusion in spinning-nozzle outlet 24, high velocity air mixes with solution rotating thread, not only drawing-off is carried out to thread, form superfine nano fiber, play the effect guiding diffusion simultaneously, make jet more stable.
Claims (1)
1. a high pressure draught auxiliary nozzle spinning electrostatic spinning apparatus, it is characterized in that: mainly comprise feed arrangement, air compressor machine, spinning nozzle, battery lead plate, HV generator, lapping band, hot roll, exhausting system and receiving system, air compressor machine is connected with spinning nozzle flow channel by gas flow regulating valve, feed arrangement is connected with charging runner by liquid inventory control valve, lapping band is installed on immediately below spinning nozzle, lapping band upper surface is close to by battery lead plate, connect HV generator, battery lead plate adopts mesh distribution equalizing structure, its order number is 20-500 order, exhausting system is in immediately below battery lead plate, spinning nozzle comprise for regulator solution flow liquid inventory control valve and control the gas flow regulating valve of gas flow rate, spinning nozzle main body, rotary body, solution-polymerized SBR swivel nozzle, guide shower nozzle gas cap and the charging runner of gas flow, solution-polymerized SBR swivel nozzle and rotary body cavity of resorption and be all threaded connection between rotary body epicoele and nozzle body, rotary body epicoele and cavity of resorption are two parts, can realize rotating freely, shower nozzle gas cap and nozzle body are threaded connection, shower nozzle gas cap inwall coordinates the annular airflow road formed to external diffusion with spinning-nozzle outer wall, solution-polymerized SBR swivel nozzle is tapered clamp laminar, and interlayer inside adopts whirlpool flow passage structure.
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| CN103628149B true CN103628149B (en) | 2015-10-14 |
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| CN105019039B (en) * | 2014-04-30 | 2017-01-04 | 崔建中 | Nanofiber prepared by melting electrostatic spinning method and the method |
| CN103924308A (en) * | 2014-05-03 | 2014-07-16 | 北京化工大学 | Solution differential electrostatic spinning device assisted by internal and external high-speed airflow |
| CN104060336A (en) * | 2014-05-30 | 2014-09-24 | 张家港市宏盛贸易有限公司 | Multi-nozzle static spinning device |
| CN104313708B (en) * | 2014-11-20 | 2017-02-22 | 江西先材纳米纤维科技有限公司 | Method and device for producing polymer nano fibers through high-speed airflow and high-voltage static |
| CN105350095A (en) * | 2015-11-13 | 2016-02-24 | 广东工业大学 | Airflow-assisted centrifugal spinning device |
| CN105350093B (en) * | 2015-11-13 | 2018-04-17 | 广东工业大学 | A kind of negative pressure array centrifuges pneumoelectric device for spinning |
| CN105332068B (en) * | 2015-12-11 | 2018-03-02 | 天津英鸿光大纳米科技有限公司 | Melting electrostatic spinning equipment |
| CN105543984B (en) * | 2015-12-15 | 2018-01-16 | 佛山轻子精密测控技术有限公司 | A kind of adjustable melting electrostatic spinning shower nozzle of hole |
| CN105568403B (en) * | 2016-01-27 | 2017-11-24 | 广东工业大学 | A kind of centrifugation electrostatic spinning apparatus for having rotating air suction |
| CN106757436A (en) * | 2016-12-13 | 2017-05-31 | 武汉纺织大学 | A kind of microgravity suspension centrifugal spinning method |
| CN109468710B (en) * | 2018-12-19 | 2024-04-09 | 内蒙古红阳高温隔热材料科技有限公司 | Ceramic fiber cotton blowing device and method |
| CN114990708B (en) * | 2022-06-30 | 2023-04-07 | 北京化工大学 | Preparation device for nano carbon fiber precursor by differential electrostatic spinning of steam-assisted liquid film |
| CN115467032B (en) * | 2022-08-22 | 2023-08-25 | 青岛大学 | Electrostatic spinning auxiliary device |
| CN115627548B (en) * | 2022-08-30 | 2023-07-28 | 江苏新视界先进功能纤维创新中心有限公司 | Cyclone airflow auxiliary device and melt differential electrostatic spinning device |
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Effective date of registration: 20210621 Address after: Building 5, China Shengze textile technology pioneer park, no.1188, West 2nd Ring Road, Shengze Town, Wujiang District, Suzhou City, Jiangsu Province Patentee after: Jiangsu new vision advanced functional fiber Innovation Center Co.,Ltd. Address before: 100029, No. 15 East Third Ring Road, Chaoyang District, Beijing Patentee before: BEIJING University OF CHEMICAL TECHNOLOGY |