CN207294959U - A kind of polyacrylonitrile-based precursor is dry to squirt method coagulating bath constant-current stabilizer - Google Patents
A kind of polyacrylonitrile-based precursor is dry to squirt method coagulating bath constant-current stabilizer Download PDFInfo
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- CN207294959U CN207294959U CN201721167278.3U CN201721167278U CN207294959U CN 207294959 U CN207294959 U CN 207294959U CN 201721167278 U CN201721167278 U CN 201721167278U CN 207294959 U CN207294959 U CN 207294959U
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- constant
- current stabilizer
- inner panel
- outside plate
- sieve inner
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- 239000003381 stabilizer Substances 0.000 title claims abstract description 34
- 230000001112 coagulating effect Effects 0.000 title claims abstract description 30
- 239000002243 precursor Substances 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 11
- 229920002239 polyacrylonitrile Polymers 0.000 title claims abstract description 11
- 230000015271 coagulation Effects 0.000 claims abstract description 14
- 238000005345 coagulation Methods 0.000 claims abstract description 14
- 239000000835 fiber Substances 0.000 abstract description 13
- 239000007788 liquid Substances 0.000 abstract description 7
- 230000000087 stabilizing effect Effects 0.000 abstract description 2
- 239000006210 lotion Substances 0.000 description 7
- 238000002166 wet spinning Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 238000009987 spinning Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical group C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000000578 dry spinning Methods 0.000 description 1
- 239000002305 electric material Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 210000003041 ligament Anatomy 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
Landscapes
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
Method coagulating bath constant-current stabilizer is squirted this application discloses a kind of polyacrylonitrile-based precursor is dry, including cylindric top half sets meshed half sieve inner panel, the cylindric outside plate being sleeved on outside half sieve inner panel, the annular upper cover plate for being separately fixed at outside plate and half sieve inner panel both ends and annular lower cover；Further include for the constant-current stabilizer to be fixed in coagulating tank immediately below spinneret so that the fixation kit that the upper surface of constant-current stabilizer is flushed with coagulation bath；The hollow closed chamber of annular is formed between the outside plate and half sieve inner panel；The exterior bottom of the outside plate is provided with coagulating bath loop head.The constant-current stabilizer that the application provides can significantly reduce surface of coagulation bath fluctuation, ensure liquid level stabilizing, as-spun fibre is passed through coagulating bath, improve strand quality.
Description
Technical field
The disclosure relates generally to technical field of chemical fiber manufacturing, and in particular to production equipment used for high-performance carbon fibre, especially
It is related to that a kind of polyacrylonitrile-based precursor is dry to squirt method coagulating bath constant-current stabilizer.
Background technology
Carbon fiber is a kind of new material with the excellent properties such as high intensity, high-modulus, high temperature resistant, corrosion-resistant, as
The reinforcing fiber of composite material, is widely used in aircraft construction material, electromagnetic shielding except the bodies such as electric material, artificial ligament are alternative
Material and manufacture rocket envelope, power ship, industrial robot, leaf springs of car and drive shaft etc..
Dry-jet wet-spinning is a kind of chemical fibre spinning method for combining dry spinning with wet spinning feature.Spinning
Stoste first passes through one section of space after spinning head extrusion, and subsequently into coagulating bath, the gas in space can be air or other are lazy
Property gas.During using dry-jet wet-spinning, stoste thread can be subjected to significant spinneret draft in atmosphere, draw zone length far more than
Liquid stream swells the length in area, therefore, using that can improve jet stretch multiple and spinning speed during dry-jet wet-spinning, in addition, using dry spray
Wet spinning can also relatively efficiently control fiber structure-forming process.At present, dry-jet wet-spinning has been used in polyacrylonitrile fibre and has produced
In.Polyacrylonitrile (PAN) realizes one of industrialized synthetic fibers as relatively early, and product mechanical property is excellent, is that production carbon is fine
The main precursor of dimension.Using dry-jet wet-spinning prepare PAN precursor when, fibre diameter irregularity be influence strand quality it is important because
Element, in as-spun fibre forming process, is added due to coagulation bath and causes liquid fluctuating, is directly affected as-spun fibre and is formed, into
And increase diameter irregularity.
When coagulation bath adds coagulating tank, since body lotion flowing can make liquid level in coagulating tank produce fluctuation, shadow
As-spun fibre running orbit is rung, precursor diameter irregularity is added, fracture of wire can be caused under serious conditions.Carried on the utility model
For a kind of constant-current stabilizer, which can avoid producing liquid fluctuating during adding because of coagulation bath, reduce precursor diameter
Irregularity, improves strand quality.
The content of the invention
In view of drawbacks described above of the prior art or deficiency, being intended to provide a kind of can reduce the poly- of precursor diameter inequality rate
Acrylonitrile group precursor is dry to squirt method coagulating bath constant-current stabilizer.
In a first aspect, the application provides, a kind of polyacrylonitrile-based precursor is dry to squirt method coagulating bath constant-current stabilizer, including cylinder
The top half of shape sets meshed half sieve inner panel, the cylindric outside plate being sleeved on outside half sieve inner panel, is separately fixed at outside plate
Annular upper cover plate and annular lower cover with half sieve inner panel both ends；Further include for the constant-current stabilizer to be fixed on coagulating bath
So that the fixation kit that the upper surface of constant-current stabilizer is flushed with coagulation bath immediately below spinneret in circulating slot；The outside plate and half
The hollow closed chamber of annular is formed between sieve inner panel；The exterior bottom of the outside plate is provided with coagulating bath loop head.
According to technical solution provided by the embodiments of the present application, the diameter range of the mesh is 3mm-10mm.
According to technical solution provided by the embodiments of the present application, the mesh density scope on the half sieve inner panel is 0.5
Every square centimeter to 5 every square centimeter.
According to technical solution provided by the embodiments of the present application, the outside plate is identical with the height of half sieve inner panel；It is described outer
The diameter range of plate is 240mm-290mm；
According to technical solution provided by the embodiments of the present application, the altitude range of the outside plate is 200mm-300mm.
According to technical solution provided by the embodiments of the present application, the diameter range of the half sieve inner panel is 200mm-270mm.
According to technical solution provided by the embodiments of the present application, the width range of the closed chamber is 10mm-50mm.
The beneficial effect of the application is：By the utility model constant-current stabilizer be installed on coagulating bath circulating slot in spinneret just under
Side, the device upper surface are horizontal with surface of coagulation bath.When coagulation bath is added, body lotion is solidified from cylindric outside plate exterior bottom
Bath loop head is from bottom to top flowed into hollow closed chamber, then gentle from cylindric half sieve inner panel top half surface mesh
Outflow, makes as-spun fibre be in contact all the time with fresh coagulation bath.Not plus during the utility model constant-current stabilizer, precursor diameter is irregular
Rate is 8%-12%, and after the constant-current stabilizer, precursor diameter irregularity is down to 3%-5%, and the utility model constant-current stabilizer can
Surface of coagulation bath fluctuation is significantly reduced, ensures liquid level stabilizing, as-spun fibre is passed through coagulating bath, it is straight to significantly reduce precursor
Footpath irregularity, improves strand quality.
Brief description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, the application's is other
Feature, objects and advantages will become more apparent upon：
Fig. 1 is a kind of overlooking the structure diagram of embodiment of the application；
Fig. 2 is a kind of vertical schematic cross-sectional view of embodiment of the application；
Figure label：
10th, half sieve inner panel；20th, outside plate；30th, annular upper cover plate；40th, annular lower cover；50th, fixation kit；60th, it is hollow
Closed chamber；21st, coagulating bath loop head；11st, mesh；51st, side plate；52nd, support plate；53rd, reinforcing plate, 54, bolt.
Embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related invention, rather than the restriction to the invention.It also should be noted that in order to
It illustrate only easy to describe, in attached drawing with inventing relevant part.
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the application in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Fig. 1 and Fig. 2 is a kind of dry structure diagram for squirting method coagulating bath constant-current stabilizer of polyacrylonitrile-based precursor of the application,
Constant-current stabilizer includes half sieve inner panel 10, the circle being sleeved on outside half sieve inner panel 10 that cylindric top half is provided with mesh 11
Tubular outside plate 20, the annular upper cover plate 30 for being separately fixed at 20 and half sieve inner panel of outside plate, 10 both ends and annular lower cover 40；Also
Including for the constant-current stabilizer is fixed on immediately below spinneret in coagulating bath circulating slot so that the upper surface of constant-current stabilizer with
The fixation kit 50 that coagulation bath flushes；The hollow closed chamber 60 of annular is formed between the 20 and half sieve inner panel 10 of outside plate；
The exterior bottom of the outside plate 20 is provided with coagulating bath loop head 21.
In above-described embodiment, the upper surface of the lower surface of annular upper cover plate 30 and annular lower cover 40 close to interior collar and
The edge of outer collar is both provided with annular groove, and the top of the 20 and half sieve inner panel 10 of outside plate is connected to the annular upper cover
In the annular groove of the lower surface of plate 30；The bottom of outside plate and half sieve inner panel 10 is stuck in the ring of the upper surface of annular lower cover 40
In connected in star.In other embodiments, annular upper cover plate 30 and annular lower cover 40 can also be that others can be by 20 He of outside plate
The other structures that half sieve inner panel 10 is fixedly connected.
In a preferred embodiment, fixation kit 50 includes being welded on the side of the rectangular distribution of two couples of coagulating tank inner wall
Plate 51, be individually positioned in two two strip support plates 52 on side plate 51, the reinforcing plate 53 below support plate 52；Institute
The center for stating support plate 52 offers strip hole；The both ends of reinforcing plate offer threaded hole；Fastening bolt 54 through strip hole and
Support plate 52 is fixedly connected by threaded hole with reinforcing plate 53；The constant-current stabilizer of the application be placed in two support plates 52 bolt it
Between.In other embodiments, fixation kit 50 can also be easy for the other structures that constant-current stabilizer is fixed in coagulating tank.
Above-mentioned constant-current stabilizer is installed in coagulating bath circulating slot immediately below spinneret, constant-current stabilizer upper surface and coagulating bath
Liquid level.When coagulation bath is added, body lotion from cylindric 20 exterior bottom coagulating bath loop head 21 of outside plate from bottom to top
Be flowed into hollow closed chamber 60, then gently flowed out from cylindric half sieve inner panel, 10 top half surface mesh 11, body lotion by
One changes into multiply, reduces the fluctuation produced during body lotion is added, as-spun fibre is connected all the time with fresh coagulation bath
Reach current stabilization effect while tactile.In addition, tow enters in the cavity that half sieve inner panel 10 is first passed through during coagulating bath, in half sieve
Body lotion in coagulating bath is divided into inside and outside two parts by plate 10, it is ensured that half sieve inner panel, 10 inside body lotion is from half sieve inner panel
The influence that 10 outer bath fluid waves move, reaches current stabilization effect.In the prior art, precursor diameter irregularity is 8-12%, and use is above-mentioned
After constant-current stabilizer, precursor diameter irregularity is down to 3%-5%；It can be seen that the above device of the application significantly reduces precursor diameter not
Even rate, improves strand quality.
In a preferred embodiment, the diameter range of the mesh is 3mm-10mm.
In a preferred embodiment, the mesh density scope on the half sieve inner panel 10 is every square centimeter to 5 for 0.5
It is a every square centimeter.
In a preferred embodiment, the outside plate 20 is identical with the height of half sieve inner panel 10；The diameter of the outside plate 20
Scope is 240mm-290mm.
In a preferred embodiment, the altitude range of the outside plate 20 is 200mm-300mm.
In a preferred embodiment, the diameter range of the half sieve inner panel 10 is 200mm-270mm.
In a preferred embodiment, the width range of the closed chamber 60 is 10mm-50mm.The width of closed chamber is outside plate
The difference of the outer radius of 20 inside radius and half sieve inner panel 10.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.People in the art
Member should be appreciated that invention scope involved in the application, however it is not limited to the technology that the particular combination of above-mentioned technical characteristic forms
Scheme, while should also cover in the case where not departing from the inventive concept, carried out by above-mentioned technical characteristic or its equivalent feature
The other technical solutions for being combined and being formed.Such as features described above has similar work(with (but not limited to) disclosed herein
The technical solution that the technical characteristic of energy is replaced mutually and formed.
Claims (7)
1. a kind of polyacrylonitrile-based precursor is dry to squirt method coagulating bath constant-current stabilizer, it is characterised in that including the cylindric first half
Point it is uniformly provided with half sieve inner panel (10) of mesh (11), is sleeved on the outer cylindric outside plate (20) of half sieve inner panel (10), respectively
It is fixed on the annular upper cover plate (30) of outside plate (20) and half sieve inner panel (10) both ends and annular lower cover (40)；Further include and be used for
The constant-current stabilizer is fixed in coagulating bath circulating slot immediately below spinneret so that the upper surface of constant-current stabilizer and coagulation bath
The fixation kit (50) flushed；The hollow closed chamber (60) of annular is formed between the outside plate (20) and half sieve inner panel (10)；
The exterior bottom of the outside plate (20) is provided with coagulating bath loop head (21).
2. constant-current stabilizer according to claim 1, it is characterised in that the diameter range of the mesh (11) is 3mm-
10mm。
3. constant-current stabilizer according to claim 1, it is characterised in that half sieve inner panel (10) the mesh density scope is
0.5 every square centimeter to 5 every square centimeter.
4. constant-current stabilizer according to any one of claims 1 to 3, it is characterised in that in the outside plate (20) and half sieve
The height of plate (10) is identical；The diameter range of the outside plate (20) is 240mm-290mm.
5. constant-current stabilizer according to claim 4, it is characterised in that the altitude range of the outside plate (20) is 200mm-
300mm。
6. constant-current stabilizer according to claim 5, it is characterised in that the diameter range of the half sieve inner panel (10) is
200mm-270mm。
7. constant-current stabilizer according to claim 6, it is characterised in that the width range of the closed chamber (60) is 10mm-
50mm。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721167278.3U CN207294959U (en) | 2017-09-13 | 2017-09-13 | A kind of polyacrylonitrile-based precursor is dry to squirt method coagulating bath constant-current stabilizer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721167278.3U CN207294959U (en) | 2017-09-13 | 2017-09-13 | A kind of polyacrylonitrile-based precursor is dry to squirt method coagulating bath constant-current stabilizer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109837597A (en) * | 2019-03-21 | 2019-06-04 | 东华大学 | A kind of controllable free liquid level mushroom-head electrostatic spinning nozzle and its application method suitable for high-speed motion |
| CN110093677A (en) * | 2019-05-20 | 2019-08-06 | 中国科学院山西煤炭化学研究所 | A kind of polyacrylonitrile fibre, polyacrylonitrile-based carbon fibre and preparation method thereof |
-
2017
- 2017-09-13 CN CN201721167278.3U patent/CN207294959U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109837597A (en) * | 2019-03-21 | 2019-06-04 | 东华大学 | A kind of controllable free liquid level mushroom-head electrostatic spinning nozzle and its application method suitable for high-speed motion |
| CN109837597B (en) * | 2019-03-21 | 2021-05-25 | 东华大学 | Controllable free liquid level mushroom head type electrostatic spinning nozzle suitable for high-speed movement and using method thereof |
| CN110093677A (en) * | 2019-05-20 | 2019-08-06 | 中国科学院山西煤炭化学研究所 | A kind of polyacrylonitrile fibre, polyacrylonitrile-based carbon fibre and preparation method thereof |
| CN110093677B (en) * | 2019-05-20 | 2021-08-31 | 中国科学院山西煤炭化学研究所 | Polyacrylonitrile fiber, polyacrylonitrile-based carbon fiber and preparation method thereof |
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Effective date of registration: 20241017 Address after: 065000 West side of Fengxiang Road, south of Longxian Road, Hebei Langfang High tech Industrial Development Zone, Anci District, Langfang City, Hebei Province Patentee after: Changsheng (Langfang) Technology Co.,Ltd. Country or region after: China Patentee after: KANGDE CARBON VALLEY TECHNOLOGY CO.,LTD. Address before: 065000 Hebei, Langfang, Anci, south of Ruifeng Road, Chang Fu Road. Patentee before: ZHONG AN XIN TECHNOLOGY CO.,LTD. Country or region before: China Patentee before: KANGDE CARBON VALLEY TECHNOLOGY CO.,LTD. |