CN203754858U - Needleless electrostatic spinning device - Google Patents
Needleless electrostatic spinning device Download PDFInfo
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- CN203754858U CN203754858U CN201420031385.3U CN201420031385U CN203754858U CN 203754858 U CN203754858 U CN 203754858U CN 201420031385 U CN201420031385 U CN 201420031385U CN 203754858 U CN203754858 U CN 203754858U
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Abstract
The utility model provides a needleless electrostatic spinning device. The needleless electrostatic spinning device comprises a spinning jet, a receiving electrode, a high-voltage power supply, a solution tank for storing polymer solution, a waste solution tank, a base material, a winding system of the base material, etc.; or the needleless electrostatic spinning device comprises the spinning jet, the receiving electrode, the high-voltage power supply, a solution tank for storing polymer fused solution, the waste solution tank, the base material, the winding system of the base material, a heating device, an electric heating control device of the heating device, etc., wherein the spinning jet is a slit-type spinning jet which is formed by fitting closely a left half spinning jet part and a right half spinning jet part and integrally fastening through a screwed fitting; or the spinning jet is composed of a left spinning jet component, a right spinning jet component, and an equalizing grid tray clamping piece which is clamped between the left spinning jet component and the right spinning jet component. According to the needleless electrostatic spinning device, the slit-type spinning jet provided is convenient to dismount, mount and clean, nano-fibers can be continuously and efficiently produced, and thus the spinning efficiency can be raised; in addition, the needleless electrostatic spinning device is applicable to electrostatic spinning of both polymer solution and polymer fused solution.
Description
Technical field
The utility model relates to high-voltage electrostatic spinning field, particularly a kind of needleless hair style electrostatic spinning apparatus of producing nanofiber for continuous high-efficient.
Background technology
At present, electrostatic spinning technique is the mainstream technology of preparing nanofiber.The electrospinning device of single needle is just disclosed as far back as Anton Fomhals in 1934 in patent.But this single needle device for spinning efficiency is extremely low, prepares the production capacity of nanofiber and only has 0.001 ~ 0.01g/h.In order to improve spinning efficiency, succession has developed spininess hair style electrostatic spinning apparatus, as disclosed in patent 200910031948.2,200610157106.8, WO2005073441A1, normally tens of even hundreds of single syringe needles are grouped together and carry out electrostatic spinning.The spinning efficiency of Multi needle electrostatic spinning apparatus can be brought up to 0.1 ~ 1.0g/h.But because syringe needle easily stops up, clean and maintenance work is very loaded down with trivial details, so also do not solve well Industrialization.In recent years, someone proposed needle-less electrostatic spinning technique in succession, adopted metal roller, metal ball, rosette, the isostructural spinning head of spiral winding, in order to as generating taylor cone and causing the spinning appts of electrostatic spinning process.Especially " nanometer spider " the WO2012/139533 A1 technology convenient and efficient the most developing with ELMARCO company of Czech.It uses fixing metal wire-type of electrode as spinning appts, metal wire-type of electrode is through the aperture on liquid coating device, liquid coating device is realized reciprocating motion by its mechanical structure, and polymer solution is smeared in metal wire-type of electrode, the polymer solution in metal wire-type of electrode forms the taylor cone freely distributing and spray silk phenomenon occurs under the effect of electrostatic field.Its spinning width can reach 1.5 meters, and spinning efficiency can reach 1 ~ 5g/min.But, due to its device structure reason, can only carry out electrostatic spinning to polymer solution.The polymer solution mass concentration of its use is generally 10 ~ 20%wt, has a large amount of solvent evaporates in electrostatic spinning process, forms a large amount of to human body and the harmful organic exhaust gas of environment.
Summary of the invention
Easily stop up in order to overcome prior art needle-based electrostatic spinning apparatus syringe needle, clean difficult deficiency, and metal wire-type of electrode spinning appts can not carry out to polymer solution the deficiency of electrostatic spinning, the utility model provides a kind of needleless hair style electrostatic spinning apparatus, it is convenient disassembly not only, be convenient to clean, overcoming needle-based spinneret easily stops up, clean difficult shortcoming, and can realize the electrostatic spinning for polymer melt, overcome metal wire-type of electrode and can only carry out electrostatic spinning to polymer solution, spinning process has a large amount of solvent evaporates to form the deficiency of the organic exhaust gas of harmful contaminated environment.
The utility model for solving the problems of the technologies described above adopted technical scheme is:
The first scheme of needleless hair style electrostatic spinning apparatus, by spinning head, collecting electrode, high voltage source, form for NaOH solution tank NaOH, waste liquid tank, base material and the reel system thereof etc. that store polymer solution.
A. spinning head, the collecting electrode that is positioned at directly over spinning head are connected with the positive and negative electrode of high voltage source by high-tension cable respectively.
B. be connected with spinning head by solution feed pump, feed flow check valve, liquid feeding pipeline for the NaOH solution tank NaOH that stores polymer solution, form feed flow loop.
C. be positioned at spinning head bottom, collect the waste liquid tank that overflows polymer solution, be connected with waste liquid tank by waste drains pump, waste liquid check valve, waste liquid pipeline, form waste liquid and reclaim loop.
D. base material is by the reel system being made up of let off roll, wind-up roll, guide roller, and level is through spinning head and collecting electrode, and continuously-running.
Its spinning head adopts slit-type spinning head; Fitted tightly by left half sheet spinning head, right half sheet spinning head, and form by the fastening one of thread connector.Left and right two halves sheet spinning head is that top is by the intilted sharp-pointed taper in outside and the metal plate-like member that flushes, forms slotted opening after the two docking on slit-type spinning head top, forms the cavity of slit-type spinning head inside below slotted opening; Cavity comprises the liquid storage cylinder of the flow channel for liquids at slit, middle part on top and current-sharing grid thereof, bottom; The inlet opening UNICOM of liquid storage cylinder and slit-type spinning head bottom.
Or slit-type spinning head is by left and right two spinning head members, and the screen intermediate plate being clipped between left and right two spinning head members fits tightly, and consists of the fastening one of thread connector.On screen intermediate plate, there is the grizzly bar of current-sharing grid.Left and right two spinning head members and screen intermediate plate three form the cavity of slit-type spinning head inside.Form the slotted opening on spinning head top by left and right two spinning head members docking, or jointly form this slotted opening by left and right two spinning head members and screen intermediate plate three.
The another kind of scheme of needleless hair style electrostatic spinning apparatus, is by spinning head, collecting electrode, high voltage source, for storing fluid reservoir, waste liquid tank, base material and the reel system thereof of polymer melt, and the composition such as heater and electric heating control device thereof.
A. spinning head is connected with the earth by earth connection; Spinning head, the collecting electrode being positioned at directly over spinning head are connected with the positive and negative electrode of high voltage source by high-tension cable respectively.
B. for storing the fluid reservoir of polymer melt, its top is connected with compressed air source by compressed air piping; The outlet of fluid reservoir bottom is connected with spinning head by liquid feeding pipeline, forms the feed flow loop of polymer melt.
C. fluid reservoir disposes fluid reservoir heater; Feed pipe disposes feed pipe heater.
D. be positioned at spinning head bottom, for collecting the waste liquid tank of the polymer melt overflowing, and be connected by waste drains pump, waste liquid recovery tube between fluid reservoir, formation waste liquid recovery loop.
E. spinning head and waste liquid tank dispose spinning head and waste liquid tank heater, and this heater and sewer pipe heater, fluid reservoir heater, feed pipe heater are connected with electric heating control device jointly, form heating system.
F. base material is by the reel system being made up of let off roll, wind-up roll, guide roller, and level is through spinning head and collecting electrode, and continuously-running.
Its spinning head is to adopt slit-type spinning head equally; The formation of slit-type spinning head is identical with " the first scheme of needleless hair style electrostatic spinning apparatus ", no longer repeats at this.
The beneficial effects of the utility model are:
1. for single needle or spininess hair style electrostatic spinning apparatus, it is high, simple in structure that dismounting, easy to clean, spinning efficiency are convenient in the spinning of slit-type spinning head.And the problem of avoiding phase mutual interference between the each syringe needle of Multi needle system, improves spinning efficiency greatly.
2. for metal wire-type of electrode electrostatic spinning apparatus, slit-type spinning head not only can carry out electrostatic spinning to polymer solution, and can realize the molten mass of polymer is carried out to electrostatic spinning.And, make whole electrostatic spinning process can realize continuous continual operation.Having overcome metal wire-type of electrode can only carry out electrostatic spinning to polymer solution, and the deficiency of polymer solution electrostatic spinning existence: spinning process has a large amount of solvent evaporates, forms the organic exhaust gas of a large amount of harmful contaminated environment.
Brief description of the drawings
Fig. 1: the utility model is for the formation schematic diagram of the electrostatic spinning apparatus of polymer solution.
Fig. 2: the utility model is for the formation schematic diagram of the electrostatic spinning apparatus of polymer melt.
Fig. 3,4: shaft side figure, the axle of a kind of structural representation of slit-type spinning head are surveyed explosive view.
Fig. 5～7: the master of a kind of structural representation of slit-type spinning head depending on, overlook, side view.
View is put in the L office that view, Figure 13 are put in the A-A cutaway view of Fig. 8～10: Fig. 5, the K office of Fig. 6.
The D of the B-B cutaway view of Figure 11～13: Fig. 7, the C-C cutaway view of Fig. 8, Fig. 5 is to view.
Figure 14～16: the axle survey explosive view of the another kind of structural representation of slit-type spinning head and master, side view.
Figure 17～19: the E-E cutaway view of the another kind of structural representation Figure 15 of slit-type spinning head, the F-F cutaway view of Figure 16, the G-G cutaway view of Figure 17.
Figure 20: the schematic diagram blast 3D view of the third structure of slit-type spinning head.
Figure 21,22: the master of the third structural representation of slit-type spinning head looks, side view.
Figure 23～25: the H-H cutaway view of the third structural representation of slit-type spinning head Figure 21, the I-I cutaway view of Figure 22, the J-J cutaway view of Figure 23.
Figure 26: the structural representation of the screen intermediate plate of the third structure of slit-type spinning head.
Figure 27,28: the structural representation of the 4th kind of left and right two spinning head members of structure of slit-type spinning head.
Figure 29: the structural representation of the embedded screen intermediate plate of the 4th kind of structure of slit-type spinning head.
Figure 30: the structural representation axle of heat preserving type spinning head and waste liquid tank heater is surveyed explosive view.
In figure: 1-slit-type spinning head or abbreviation spinning head, 2-collecting electrode, 3-high voltage source GYDY, 4-NaOH solution tank NaOH, 5-waste liquid tank, 6-waste liquid tank, 7-base material, 8-manifold, 9-fluid reservoir, 11-high-voltage power cathode, 21-negative pole high-tension cable, 41-solution feed pump GYB, pneumatic diaphragm pump, 42-feed flow check valve, 43-liquid feeding pipeline, 51-waste drains pump FYB, pneumatic diaphragm pump, 52-waste liquid check valve, 53-waste liquid pipeline, 71 let off roll, 72-wind-up roll, 73-guide roller, 90-electric heating control device JRKZ, 91-fluid reservoir heater, 92-compressed air piping, under 93-, export, 94-feed pipe, 95-feed pipe heater, 96-spinning head and waste liquid tank heat insulation and heating equipment, 97-waste liquid reclaiming pump FYB ', 98-sewer pipe heater, 99-sewer pipe, the left half sheet spinning head of 101-one side flow-guiding type, the right half sheet spinning head of 102-one side flow-guiding type, 103-bolt, 104-flow channel for liquids, 105-current-sharing grid, 106-liquid storage cylinder, 107-slit, 108-slotted opening, 109-locating hole, 110-screw, 111-inlet opening, 120-earth connection, 121-the earth, the left half sheet spinning head of 201-double baffle type, the right half sheet spinning head of 202-double baffle type, left spinning head member of 301-screen clip type, right spinning head member of 302-screen clip type, 303-screen intermediate plate, 304-grizzly bar, the embedded left spinning head member of 305-, 306-locating dowel, the embedded right spinning head member of 307-, the embedded screen intermediate plate of 308-, the embedded screen intermediate plate of 309-locating hole, 601-erecting bed, 602-left side wall, 603-right side wall, 604-end cap, 605-metallic support, 606-platform, 607-perforate, 608-waste liquid tank bottom, 609-outage, 610-circular hole, 611-heating rod.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment 1:
The utility model shown in Figure 1 carries out the formation of the needleless hair style electrostatic spinning apparatus of electrostatic spinning for polymer solution.It is by slit-type spinning head 1, collecting electrode 2, high voltage source GYDY (3), form for NaOH solution tank NaOH 4, waste liquid tank 6, base material 7 and the reel system thereof etc. that store polymer solution.
1. slit-type spinning head 1 is connected with the positive pole of high voltage source 3 by positive extra high voltage cable 11; Provide positive polarity high pressure by high voltage source 3.
The collecting electrode 2 being positioned at directly over spinning head is connected with the negative pole of high voltage source 3 by negative pole high-tension cable 21; Provide negative polarity high pressure by high voltage source 3.
2. be stored in NaOH solution tank NaOH 4 for the polymer solution of electrostatic spinning.NaOH solution tank NaOH 4 is connected with slit-type spinning head 1 by solution feed pump GYB (41), feed flow check valve 42, liquid feeding pipeline 43, jointly forms feed flow loop.Solution feed pump 41 adopts pneumatic diaphragm pump; Liquid feeding pipeline 43 adopts polyfluortetraethylene pipe.
3. in electrostatic spinning process, if the polymer solution overflowing in slit-type spinning head 1 is not used up completely, can enter the waste liquid tank 6 that is installed on spinning head 1 bottom.
Collection is overflowed and the waste liquid tank 6 of unexhausted polymer solution, is connected with waste liquid pipeline 53 by waste drains pump FYB (51), waste liquid check valve 52 with waste liquid tank 5, jointly forms waste liquid and reclaims loop.Waste drains pump 51 adopts pneumatic diaphragm pump; Waste liquid pipeline 53 adopts polyfluortetraethylene pipe.
4. base material 7 is by the reel system being made up of let off roll 71, guide roller 73, wind-up roll 72, and level is through spinning head 1 and collecting electrode 2, and continuously-running.
Operation principle:
1. when high voltage source GYDY (3) works, slit-type spinning head 1 is as positive electrode, and collecting electrode 2, as negative electrode, can form high-voltage electrostatic field E from bottom to top between positive and negative electrode.
2. polymer solution is sent to spinning head 1 by feed flow loop, and can overflow at the slotted opening of spinning head top 108.Now in manifold 8, set up high-voltage electrostatic field E, polymer solution can, under the effect of electric field force, form numerous taylor cone intensive and that evenly arrange at slotted opening 108 places of spinning head 1.
3. when the electric-field intensity of high-voltage electrostatic field E exceedes a threshold value, polymer solution will overcome capillary effect, sprays, and form countless tiny jets on the top of taylor cone.
4. the jet of polymer solution sprays from bottom to top in high-voltage electrostatic field, being attended by this course the moving and splitting phenomenon of stretching, whip occurs, and along with the solvent composition in polymer solution jet volatilizees gradually, finally form the even fiber of nano-scale of sub-micron.
5. the final nanofiber forming can be deposited near collecting electrode 2 and be positioned on the base material 7 of its below.Base material 7 is by reel system coiling wind-up roll 72, and operation continuously.
The structure of slit-type spinning head:
1. the slit-type spinning head of one side flow-guiding type left-right asymmetry:
In a kind of structure of the spinning head of slit-type shown in Fig. 3～13, i.e. the structure of one side flow-guiding type left-right asymmetry slit-type spinning head.This slit-type spinning head is fitted tightly by a left side half sheet spinning head 101 of one side flow-guiding type left-right asymmetry, right half sheet spinning head 102, and is that the fastening one of bolt 103 forms by thread connector.Left and right two halves sheet spinning head 101,102 is by the intilted sharp-pointed taper in outside and the metal plate-like member that flushes for top, after the two docking, form slotted opening 108 on slit-type spinning head 1 top, below slotted opening 108, form the cavity of spinning head inside.Cavity comprises slit 107, the flow channel for liquids 104 at middle part and the current-sharing grid 105 of interval flow channel for liquids 104 thereof on top, the liquid storage cylinder 106 of bottom.Inlet opening 111 UNICOMs of liquid storage cylinder 106 and spinning head 1 bottom.
Left and right two halves sheet spinning head 101,102 is left and right dissymmetrical structure.Wherein one and half sheet spinning heads, have several along horizontal alternate uniform grizzly bar and several longitudinal fluting on the composition surface of left half sheet spinning head 101; Another part half sheet spinning head, the composition surface of right half sheet spinning head 102 is plane.After left and right two halves sheet spinning head 101,102 docking, left half sheet spinning head 101 end faces of current-sharing grid grizzly bar and the plane engaging surface closed butt joint of second half sheet spinning head 102 form current-sharing grid 105, and longitudinal fluting forms flow channel for liquids 104.Because only having on left half sheet spinning head 101, two halves sheet spinning head has flow channel for liquids 104, therefore claim one side flow-guiding type spinning head.
Fig. 6,9 illustrates the structure of this slit-type spinning head top slotted opening 108.The width of the slotted opening 108 of slit-type spinning head and cavity top slit 107 is between 0.05 ~ 2mm; The length L of spinning head is 200mm ~ 2000mm.Cavity top is slit 107, and the width of slit 107 is identical with the width of slotted opening 108.
Fig. 4,11 illustrates the structure of current-sharing grid 105.Current-sharing grid grizzly bar is that several are along the horizontal alternate boss that is distributed on flow channel for liquids 104.The section configuration that the grizzly bar of current-sharing grid flows to along electrostatic spinning liquid is water-drop-shaped, and its shape can also be melon seeds shape, Yangtze River Delta shape, the shape such as elongated rectangular shape and prismatic with pinnacle; Except there being pinnacle, other has property at parts of edges and corners will have arc transition.In the time that liquid flows from liquid storage cylinder 106 to slotted opening 108, current-sharing grid 105 play the effect that fluid well-distributing is distributed.The quantity of current-sharing grid 105 increases along with the increase of spinning head length, can be tens of even hundreds of.
Flow channel for liquids 104 bottoms are liquid storage cylinders 106, can be processed into square, semicircle, arc or trapezoidal etc. groove.The width of liquid storage cylinder 106 is the decades of times of slit width, in 5mm ~ 20mm scope.Liquid storage cylinder 106 bottoms have circular inlet opening 111.
Figure 10,13 illustrates the position in this slit-type spinning head bottom liquid inlet hole 111.This routine inlet opening 111 is positioned at the bottom of left half sheet spinning head 101.Inlet opening 111 can be arranged in 1 two any bottoms of of spinning head, or respectively processes a symmetrical semi-circular hole two bottoms, is spliced into a circular hole.Inlet opening 111 is connected with outside feed flow loop, when spinning solution is from inlet opening 111 enters spinning head 1, first can be full of liquid storage cylinder 106, and the spinning solution pressure that enters flow channel for liquids 104 in order to guarantee is even.The number of inlet opening 111 can be two or several according to the length of spinning head 1.All the other have: locating hole 109: impermeable circular hole, fixing spinning head 1 use is installed; Screw 110: construction bolt 103 use.
Two metallic plates that upper end is sharp-pointed of left and right two halves sheet spinning head, can adopt stainless steel, alloy type or surface treated cast iron manufacture.Processing can casting, can be also by the processes such as milling, laser engraving.
2. the symmetrical slit-type spinning head of double baffle type:
In the another kind of structure of the spinning head of slit-type shown in Figure 14～19, i.e. the structure of the symmetrical slit-type spinning head of double baffle type.It is symmetrical left and right two halves sheet spinning head 201,202 by double baffle type and fits tightly, and consists of the fastening one of bolt 103.
On the composition surface of left and right two halves sheet spinning head 201,202, having respectively and be symmetrical several grizzly bars along horizontal alternate uniform current-sharing grid, is longitudinal fluting between grizzly bar; After left and right two halves sheet spinning head 201,202 docking, the grizzly bar end face of current-sharing grid is to being connected into current-sharing grid 105, and longitudinal fluting forms flow channel for liquids 104.On two halves sheet spinning head, all there is flow channel for liquids 104, therefore claim double baffle type spinning head.
Left and right two halves sheet spinning head 201,202, with symmetrical structure, forms slotted opening 108 on slit-type spinning head top after docking, form the cavity of spinning head inside below slotted opening 108.
The liquid storage cylinder 106 of left and right two halves sheet spinning head 201,202, is respectively processed into a half-terete groove in two halves sheet spinning head bottom, is spliced into a columned groove.
The inlet opening 111 of left and right two halves sheet spinning head 201,202, in two symmetrical semi-circular hole of the each processing in two halves sheet spinning head bottom, is spliced into two circular holes.
All the other are identical with one side flow-guiding type left-right asymmetry slit-type spinning head.
3. screen clip type slit-type spinning head:
In the third structure of the spinning head of slit-type shown in Figure 20～26--the structure of screen clip type slit-type spinning head.It is by being symmetrical left and right two spinning head members 301,302, and the screen intermediate plate 303 being clipped between left and right two spinning head members 301,302 fits tightly, and consists of the fastening one of bolt 103.Left and right two spinning head members 301,302 and screen intermediate plate 303 threes form slotted opening 108 and the inner cavity on slit-type spinning head top jointly; Cavity comprises the liquid storage cylinder 106 of the flow channel for liquids 104 at slit 107, middle part on top and current-sharing grid 105 thereof, bottom.
On screen intermediate plate 303, process several along horizontal alternate uniform grizzly bar 304, as the grizzly bar of current-sharing grid.Between grizzly bar 304, the bottom at interval and liquid storage cylinder are linked up.On the two ends of screen intermediate plate 303 and the periphery of bottom, there is the fixing hole of bolt 103.
The thickness of screen intermediate plate 303 has determined the width of slotted opening 108 and slit, and this width is between 0.05 ~ 2mm.
Left and right two spinning head members 301,302 are symmetrical structure with screen intermediate plate 303.The symmetrical approximate semi-circular hole of a pair of one-tenth is respectively arranged at the bottom of left and right two spinning head members, is spliced into circular hole, i.e. an inlet opening with screen intermediate plate 303.Equally, the liquid storage cylinder of left and right two spinning head members is the half-terete groove being similar to, and is spliced into a cylindrical recess with screen intermediate plate 303.The bottom interval of the grizzly bar 304 of liquid storage cylinder and screen intermediate plate is linked up, to be communicated with flow channel for liquids.
Double dot dash line in Figure 26 is the position of liquid storage cylinder.All the other are identical with above-mentioned two kinds of slit-type spinning heads.
4. embedded screen clip type slit-type spinning head:
In the 4th kind of structure of the spinning head of slit-type shown in Figure 27～29--be called for short the structure of embedded slit-type spinning head.It is by being symmetrical embedded left and right two spinning head members 305,307, and the embedded screen intermediate plate 308 being clipped between embedded left and right two spinning head members 305,307 fits tightly, and consists of the fastening one of bolt 103.
Embedded left spinning head member 305 and right spinning head member 307 are symmetrical structure; The top docking of the two forms the slotted opening 108 of slit-type spinning head 1.Fluted on the composition surface of embedded left and right two spinning head members 305,307, the embedded screen intermediate plate 308 of setting-in in groove.Embedded left and right two spinning head members 305,307 and embedded screen intermediate plate 308 threes form the cavity of slit-type spinning head inside.
Double dot dash line in Figure 27,28 is that the riding position of embedded screen intermediate plate 308 on embedded left and right two spinning head members 305,307 is groove location.On left spinning head member 305, there is locating dowel 306.
On embedded screen intermediate plate 308, be processed with several along horizontal alternate uniform grizzly bar 304, as the grizzly bar of current-sharing grid.Embedded screen intermediate plate 308 is flush-mounted in the groove of left and right two spinning head members 305,307, and grizzly bar 304 forms current-sharing grid with the bottom surface of left and right two spinning head members, 305,307 grooves, and spinning head is not exposed in the two ends of embedded screen intermediate plate 308 and bottom.
The bottom of grizzly bar 304 is connected by the base of embedded screen intermediate plate 308.The screen intermediate plate base of embedded screen intermediate plate 308 is on the position of liquid storage cylinder 106, makes screen intermediate plate base not hinder the circulation of spinning solution.
On embedded screen intermediate plate 308, there is locating hole 309, corresponding with the locating dowel 306 on left half sheet spinning head member 305.The two is located for screen intermediate plate 308.
The thickness of embedded screen intermediate plate 308 is slightly larger than the width of slotted opening and cavity slit, and this width is between 0.05 ~ 2mm.The spacing at liquid storage cylinder 106 positions will be much larger than the thickness of embedded screen intermediate plate 308.
Embodiment 2:
The composition that carries out the needleless hair style electrostatic spinning apparatus of electrostatic spinning for polymer melt shown in Figure 2.It by slit-type spinning head 1, collecting electrode 2, high voltage source GYDY (3), store fluid reservoir 9, waste liquid tank 6, base material 7 and the reel system thereof of polymer melt, and the composition such as heater and electric heating control device JRKZ (90) thereof.
1. slit-type spinning head 1 is connected with the earth 121 by earth connection 120.Collecting electrode 2 is connected to high voltage source GYDY (3) by negative pole high-tension cable 21, provides negative polarity high pressure by high voltage source 3.
2. be stored in fluid reservoir 9 for the polymer melt of electrostatic spinning.Fluid reservoir 9 tops, by compressed air piping 92, are connected with compressed air source; The outlet 93 of fluid reservoir 9 bottoms, is connected with spinning head by liquid feeding pipeline 94, forms the feed flow loop of polymer melt.Compressed air enters fluid reservoir 9 with the pressure setting, and the polymer melt in fluid reservoir 9 is extruded by the outlet 93 that is positioned at fluid reservoir 9 bottoms, and sends into slit-type spinning head 1 by liquid feeding pipeline 94; Slit-type spinning head 1 is connected with the earth 121 by earth connection 120.
Fluid reservoir 9 is equipped with independently heater 91, and to ensure that polymer melt can not solidify, fluid reservoir is connected with the earth 121 by earth connection 120.Liquid feeding pipeline 94 adopts metal tube; Liquid feeding pipeline disposes independent feed pipe heater 95, to ensure that polymer melt can not solidify in the process of carrying.
3. in electrostatic spinning process, if the polymer melt overflowing in slit-type spinning head 1 is not used up completely, can enter the waste liquid tank 6 that is installed on spinning head 1 bottom.Slit-type spinning head 1 and be positioned at that the waste liquid tank 6 of its bottom is common uses a set of heater 96, to ensure that polymer melt can not solidify in through spinning head 1 and waste collection process, spinning head 1 is connected with the earth 121 by earth connection 120 with waste liquid tank 6.
Waste liquid tank 6 is connected with fluid reservoir 9, is made up of the waste liquid recovery loop that connects them waste drains pump FYB ' (97), sewer pipe 99.The metal tube 94 that waste liquid reclaims loop all disposes independent heater 98, to ensure that polymer melt can not solidify in recovery enters the process of fluid reservoir 9, the waste drains pump 97 in waste liquid reclaim line and metal tube 94 are connected with the earth 121 by earth connection 120.Waste drains pump 97 adopts gear pump conventionally; Sewer pipe 99 adopts metal tube.
4. slit-type spinning head 1 and waste liquid tank 6 are furnished with heat preserving type spinning head and waste liquid tank heater 96.This heater and sewer pipe heater 95, fluid reservoir heater 91, feed pipe heater 95, be connected with electric heating control device 90 jointly, controlled by electric heating control device 90, forms heating system.
5. base material 7 is by the reel system being made up of let off roll 71, guide roller 73, wind-up roll 72, and level is through spinning head 1 and collecting electrode 2, and operation continuously.
Carrying out the slit-type spinning head of electrostatic spinning for polymer melt, is that itself and waste liquid tank are combined, and configuration has the heat insulation and heating equipment of heating and tool heat-insulation and heat-preservation, insulation function, forms heat preserving type spinning head and waste liquid tank heater 96.
The structure of heat preserving type spinning head shown in Figure 30 and waste liquid tank heater 96.
Heat preserving type spinning head and waste liquid tank heater 96 are made up of lagging casing, metallic support 605, platform 606, slit-type spinning head 1, heating rod 611, waste liquid tank 608 etc.Lagging casing is made up of left and right two sidewalls 602,603 and end cap 604 3 parts.Above-mentioned three parts of lagging casing by the metallic support 605 of bottom around fixing.In lagging casing, there is the platform 606 of laying slit-type spinning head on it; The hole 607 of settling feed tube is arranged at platform 606 bottoms, and platform both sides are useful on the waste liquid tank 608 of collecting the waste liquid overflowing in spinning head.Outage 609 is arranged at waste liquid tank bottom 608, and outage 609 is connected with outside discharge opeing loop; On the end cap 604 of lagging casing, there are left and right two rows, 6～8 circular holes 610, in circular hole, are inserted with the heating rod 611 that heats use to spinning head 1.Lagging casing is poured into a mould by lightweight refracrory.Lightweight refracrory, as: silicate, aluminate, diatom, expanded perlites etc. all can adopt.
Operation principle: substantially the same manner as Example 1.Difference is:
1. fluid reservoir 9 is to store polymer melt, and fluid reservoir 9 and feed pipe need be joined heater, and feed pipe adopts metal tube.
2. spinning head, waste liquid tank, sewer pipe all need to configure heater, adopt metal tube to make sewer pipe, and form heating system with heating control apparatus.For polymer melt heating, the insulation of electrostatic spinning.
3. liquid-supplying system difference: compressed air enters fluid reservoir 9 upper ends with the pressure setting, polymer melt in fluid reservoir 9 is extruded by the outlet 93 that is positioned at fluid reservoir 9 bottoms, and send into slit-type spinning head 1 by metal tube 94, slit-type spinning head 1 is connected with the earth 121 by earth connection 120.
The spinning head of the electrostatic spinning apparatus of the present embodiment polymer melt, identical with embodiment 1, be to adopt needleless hair style spinning head, i.e. slit-type spinning head.Slit-type spinning head can be: one side flow-guiding type left-right asymmetry, symmetrical, the screen clip type of double baffle type, and the slit-type spinning head of embedded screen clip type.Adopt slit-type spinning head can realize the electrostatic spinning of polymer melt.
Claims (9)
1. a needleless hair style electrostatic spinning apparatus, comprises spinning head, collecting electrode, high voltage source, for storing NaOH solution tank NaOH, waste liquid tank, base material and the reel system thereof of polymer solution;
A. spinning head, the collecting electrode that is positioned at directly over spinning head are connected with the positive and negative electrode of high voltage source by high-tension cable respectively;
B. be connected with spinning head by solution feed pump, feed flow check valve, liquid feeding pipeline for the NaOH solution tank NaOH that stores polymer solution, form feed flow loop;
C. be positioned at spinning head bottom, collect the waste liquid tank that overflows polymer solution, be connected with waste liquid tank by waste drains pump, waste liquid check valve, waste liquid pipeline, form waste liquid and reclaim loop;
D. base material is by the reel system being made up of let off roll, wind-up roll, guide roller, and level is through spinning head and collecting electrode, and continuously-running;
It is characterized in that: said spinning head is slit-type spinning head (1); Fitted tightly by left half sheet spinning head, right half sheet spinning head, and form by the fastening one of thread connector; Left and right two halves sheet spinning head is that top is by the intilted sharp-pointed taper in outside and the metal plate-like member that flushes, after the two docking, form slotted opening (108) on slit-type spinning head (1) top, below slotted opening (108), form the inner cavity of slit-type spinning head (1); Cavity comprises the liquid storage cylinder (106) of the flow channel for liquids (104) at slit (107), middle part on top and current-sharing grid (105) thereof, bottom; Inlet opening (111) UNICOM of liquid storage cylinder (106) and slit-type spinning head (1) bottom;
Or slit-type spinning head (1) is by left and right two spinning head members, and the screen intermediate plate being clipped between left and right two spinning head members fits tightly, and consists of the fastening one of thread connector; On screen intermediate plate, there is the grizzly bar of current-sharing grid; Left and right two spinning head members and screen intermediate plate three form the cavity of spinning head inside; Form the slotted opening (108) on spinning head top by left and right two spinning head members docking, or jointly form this slotted opening (108) by left and right two spinning head members and screen intermediate plate three.
2. a needleless hair style electrostatic spinning apparatus, comprises spinning head, collecting electrode, high voltage source, for storing fluid reservoir, waste liquid tank, base material and the reel system thereof of polymer melt, and heater and electric heating control device thereof;
A. spinning head is connected with the earth by earth connection; Spinning head, the collecting electrode being positioned at directly over spinning head are connected with the positive and negative electrode of high voltage source by high-tension cable respectively;
B. for storing the fluid reservoir of polymer melt, its top is connected with compressed air source by compressed air piping; The outlet of fluid reservoir bottom is connected with spinning head by liquid feeding pipeline, forms the feed flow loop of polymer melt;
C. fluid reservoir disposes fluid reservoir heater; Feed pipe disposes feed pipe heater;
D. be positioned at spinning head bottom, for collecting the waste liquid tank of the polymer melt overflowing, and be connected by waste drains pump, waste liquid recovery tube between fluid reservoir, formation waste liquid recovery loop;
E. spinning head and waste liquid tank dispose spinning head and waste liquid tank heater, and this heater and sewer pipe heater, fluid reservoir heater, feed pipe heater are connected with electric heating control device jointly, form heating system;
F. base material is by the reel system being made up of let off roll, wind-up roll, guide roller, and level is through spinning head and collecting electrode, and continuously-running;
It is characterized in that: said spinning head is slit-type spinning head (1); Fitted tightly by left half sheet spinning head, right half sheet spinning head, and form by the fastening one of thread connector; Left and right two halves sheet spinning head is that top is by the intilted sharp-pointed taper in outside and the metal plate-like member that flushes, after the two docking, form slotted opening (108) on slit-type spinning head (1) top, below slotted opening (108), form the cavity of spinning head inside; Cavity comprises the liquid storage cylinder (106) of the flow channel for liquids (104) at slit (107), middle part on top and current-sharing grid (105) thereof, bottom; Inlet opening (111) UNICOM of liquid storage cylinder (106) and spinning head (1) bottom;
Or slit-type spinning head (1) is by left and right two spinning head members, and the screen intermediate plate being clipped between left and right two spinning head members fits tightly, and consists of the fastening one of thread connector; On screen intermediate plate, there is the grizzly bar of current-sharing grid; Left and right two spinning head members and screen intermediate plate three form the cavity of spinning head inside; Form the slotted opening (108) on spinning head top by left and right two spinning head members docking, or jointly form this slotted opening (108) by left and right two spinning head members and screen intermediate plate three.
3. needleless hair style electrostatic spinning apparatus according to claim 1 and 2, is characterized in that: said left and right two halves sheet spinning head is the left and right two halves sheet spinning head (101,102) that one side flow-guiding type is left-right asymmetry; Wherein on the composition surface of one and half sheet spinning heads (101), have several along horizontal alternate uniform current-sharing grid grizzly bar and longitudinal fluting, the composition surface of another part half sheet spinning head (102) is plane; The plane closed butt joint of the composition surface of current-sharing grid grizzly bar and second half sheet spinning head (102) forms current-sharing grid (105), and longitudinal fluting forms flow channel for liquids (104).
4. needleless hair style electrostatic spinning apparatus according to claim 1 and 2, is characterized in that: said left and right two halves sheet spinning head is that double baffle type is symmetrical left and right two halves sheet spinning head (201,202); On the composition surface of left and right two halves sheet spinning head (201,202), having respectively and be symmetrical several grizzly bars along horizontal alternate uniform current-sharing grid, is longitudinal fluting between grizzly bar; After left and right two halves sheet spinning head (201,202) docking, the grizzly bar end face of current-sharing grid is to being connected into current-sharing grid (105), and longitudinal fluting forms flow channel for liquids (104).
5. needleless hair style electrostatic spinning apparatus according to claim 1 and 2, is characterized in that: said left and right two spinning head members are to be symmetrical left and right two spinning head members (301,302); Left and right two spinning head members (301,302) and the screen intermediate plate (303) between the two fit tightly, and form slit-type spinning head by the fastening one of thread connector; Left and right two spinning head members (301,302) and screen intermediate plate (303) three form slotted opening (108) and inner cavity jointly; On said screen intermediate plate, having the grizzly bar of current-sharing grid, is on screen intermediate plate (303), to have several along horizontal alternate uniform grizzly bar (304); Between grizzly bar (304), the bottom at interval and liquid storage cylinder are linked up; On the two ends of screen intermediate plate (303) and the periphery of bottom, there is the fixing hole of thread connector.
6. needleless hair style electrostatic spinning apparatus according to claim 1 and 2, is characterized in that: said left and right spinning head member is to be symmetrical embedded left and right two spinning head members (305,307); Said screen intermediate plate is embedded screen intermediate plate (308); Embedded left and right two spinning head members (305,307) and the embedded screen intermediate plate (308) being clipped between the two fit tightly, and form slit-type spinning head (1) by the fastening one of thread connector; Fluted in the composition surface of embedded left and right two spinning head members (305,307), the embedded screen intermediate plate of setting-in (308) in groove; Embedded left and right two spinning head members (305,307) and embedded screen intermediate plate (308) three form the cavity of slit-type spinning head inside;
On said screen intermediate plate, there is the grizzly bar of current-sharing grid, on embedded screen intermediate plate (308), to have several along horizontal alternate uniform grizzly bar (304), the bottom of grizzly bar (304) is connected by screen intermediate plate base, and screen intermediate plate base is on the position of liquid storage cylinder (106); On embedded screen intermediate plate (308), there is locating hole (309), corresponding with the locating dowel (306) on embedded left and right half sheet spinning head member (305).
7. needleless hair style electrostatic spinning apparatus according to claim 1 and 2, is characterized in that: the slotted opening (108) of said slit-type spinning head and the width of cavity top slit (107) are between 0.05 ~ 2mm; The length L of slit-type spinning head is 200mm ~ 2000mm.
8. needleless hair style electrostatic spinning apparatus according to claim 1 and 2, is characterized in that: the section configuration that the grizzly bar of said current-sharing grid flows to along electrostatic spinning liquid is water-drop-shaped.
9. needleless hair style electrostatic spinning apparatus according to claim 2, is characterized in that: said spinning head and waste liquid tank heater are heat preserving type spinning head and waste liquid tank heater (96); It comprises the lagging casing of being poured into a mould by lightweight refracrory; Lagging casing is made up of left and right two sidewalls (602,603) and end cap (604) three parts; Three parts of lagging casing by the metallic support (605) of bottom around there being platform (606) in fixing lagging casing (6); On platform (606), lay slit-type spinning head (1), the hole (607) of settling feed tube is arranged at platform (606) bottom; There is waste liquid tank (608) platform both sides, and outage (609) is arranged at waste liquid tank (608) bottom, and outage (609) is connected with outside discharge opeing loop; On the end cap (604) of lagging casing, there are left and right two row's circular holes (610), in circular hole, are inserted with the heating rod (611) to slit-type spinning head (1) heating use.
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| CN201420031385.3U CN203754858U (en) | 2014-01-18 | 2014-01-18 | Needleless electrostatic spinning device |
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| CN201420031385.3U CN203754858U (en) | 2014-01-18 | 2014-01-18 | Needleless electrostatic spinning device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104790048A (en) * | 2014-01-18 | 2015-07-22 | 青岛中科华联新材料有限公司 | Needleless electrostatic spinning device |
| CN104988586A (en) * | 2015-07-21 | 2015-10-21 | 中国第一汽车股份有限公司 | Porous material syringe needle-free static spinning apparatus |
| CN105506758A (en) * | 2015-11-25 | 2016-04-20 | 东华大学 | Jagged annular needleless static spinning device and application method thereof |
| CN105821497A (en) * | 2016-05-06 | 2016-08-03 | 东华大学 | Double-circular-ring-shaped slit type electrostatic spinning device and method |
| CN105937057A (en) * | 2016-06-27 | 2016-09-14 | 佛山轻子精密测控技术有限公司 | Conical surface electrostatic spinning nozzle in helical line array mode |
| CN110241467A (en) * | 2019-05-23 | 2019-09-17 | 东华大学 | Inner cone angie type electrostatic spinning apparatus and its application method |
| CN114481340A (en) * | 2022-03-11 | 2022-05-13 | 李红梅 | Automatic electrostatic spinning device and using method thereof |
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2014
- 2014-01-18 CN CN201420031385.3U patent/CN203754858U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104790048A (en) * | 2014-01-18 | 2015-07-22 | 青岛中科华联新材料有限公司 | Needleless electrostatic spinning device |
| CN104988586A (en) * | 2015-07-21 | 2015-10-21 | 中国第一汽车股份有限公司 | Porous material syringe needle-free static spinning apparatus |
| CN105506758A (en) * | 2015-11-25 | 2016-04-20 | 东华大学 | Jagged annular needleless static spinning device and application method thereof |
| CN105821497A (en) * | 2016-05-06 | 2016-08-03 | 东华大学 | Double-circular-ring-shaped slit type electrostatic spinning device and method |
| CN105821497B (en) * | 2016-05-06 | 2018-01-02 | 东华大学 | A kind of double circular slots formula electrostatic spinning apparatus and method |
| CN105937057A (en) * | 2016-06-27 | 2016-09-14 | 佛山轻子精密测控技术有限公司 | Conical surface electrostatic spinning nozzle in helical line array mode |
| CN110241467A (en) * | 2019-05-23 | 2019-09-17 | 东华大学 | Inner cone angie type electrostatic spinning apparatus and its application method |
| CN114481340A (en) * | 2022-03-11 | 2022-05-13 | 李红梅 | Automatic electrostatic spinning device and using method thereof |
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Address after: Six No. 266510 mountain road, Qingdao economic and Technological Development Zone, Qingdao, Shandong, 16 Patentee after: QINGDAO ZHONGKE HUALIAN NEW MATERIAL CO., LTD. Address before: Six No. 266510 mountain road, Qingdao economic and Technological Development Zone, Qingdao, Shandong, 16 Patentee before: Qingdao Zhongke Hualian New Materials Co.,Ltd. |
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Effective date of registration: 20160728 Address after: 266510 Shandong, Qingdao Province, No. six road, Huangdao District No. 16 Patentee after: Qingdao Huashijie Environment Protection Technology Co., Ltd. Address before: Six No. 266510 mountain road, Qingdao economic and Technological Development Zone, Qingdao, Shandong, 16 Patentee before: QINGDAO ZHONGKE HUALIAN NEW MATERIAL CO., LTD. |
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Granted publication date: 20140806 Termination date: 20180118 |