CN108002699A - A kind of scattered superfine glass microfibre centrifugal injection method fiber-forming process of easily mashing - Google Patents
A kind of scattered superfine glass microfibre centrifugal injection method fiber-forming process of easily mashing Download PDFInfo
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- CN108002699A CN108002699A CN201711164527.8A CN201711164527A CN108002699A CN 108002699 A CN108002699 A CN 108002699A CN 201711164527 A CN201711164527 A CN 201711164527A CN 108002699 A CN108002699 A CN 108002699A
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- Prior art keywords
- glass
- mashing
- centrifugal
- scattered
- injection method
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/06—Manufacture of glass fibres or filaments by blasting or blowing molten glass, e.g. for making staple fibres
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C13/00—Fibre or filament compositions
Abstract
The invention discloses a kind of scattered glass microfiber blowing process fiber-forming process of easily mashing, including glass metal is produced and glass metal wire drawing forming step, wherein glass metal component meet SiO2：63 66%, B2O3：4 7%, Al2O3：2.5 3.5%, by centrifuging once into fibre, annular bocca secondary high-temperature drawing-off and compressed air ring secondary cooling drawing-off, form the glass microfiber that easily mashing is scattered.
Description
Technical field
The invention belongs to glass microfiber manufacturing process technology field, specifically, it is related to a kind of scattered super of easily mashing
Thin glass microfiber centrifugal injection method production technology.
Background technology
Glass microfiber refers to the super glass wool of fibre diameter≤5 μm, and appearance is in flocculence, production technology mainly have from
Two kinds of heart blowing process and burner blowing process.
Burner blowing process generally uses crucible wire drawing method, need to flow glass marble secondary fusion, glass metal from crucible leakage hole
Go out to be drafted into once silk, the high temperature and high speed flame zone sprayed into combustion chamber forms microfibre.Burner blowing process produces micro-
Fibre diameter dispersion is larger, and its due to production equipment it is simple, technique fall behind, operating environment is poor, causes it with yield
Low, high energy consumption, it is of high cost the defects of, limit its widely apply.
Centrifugal injection method production super glass wool is by the raw mineral materials such as quartz sand, feldspar, lime stone and soda ash, borax etc.
Industrial chemicals mixes according to a certain percentage, mixture through furnace into uniformly, clarification glass metal, glass metal through supply channel from
Special bushing is uniform and stable to be entered on centrifuge in high-speed rotating centrifugal pan, small from centrifugal pan side wall under the action of the centrifugal force
Hole throw away after under the high-temperature high-speed airflow stretching action that centrifuge annular burner ejects draw forming.
The glass microfiber of centrifugal injection method production overcomes the shortcomings of burner blowing process, it is possible to achieve scale,
Automated production, compared to burner blowing process, has the advantages that unit production capacity is high, specific energy consumption is low, fibre diameter dispersion is low etc.,
Certain fields progressively instead of the application of burner blowing process.Simultaneously as the glass microfiber diameter of centrifugal injection method production is thin
And uniformly, sound absorption, heat-insulating property it is excellent, it is needing to keep the temperature the higher building of thermal insulation, sound insulation, fire protection requirement, household electrical appliances, transport etc.
Field, which has, is more and more widely used expansion.
According to common centrifugal injection method technique productions the general fibre diameter of glass microfiber uniformly, single fiber intensity and
Tenacity of fibre is high, but with the expansion of centrifugal injection method application field, compared to traditional construction material industry centrifugally glass-wool, difference should
The fibre property of the glass microfiber produced with field to centrifugal injection method proposes some particular/special requirements, wherein in certain applications
Field needs by glass microfiber be beaten scattered, it is desirable to which it is scattered that glass microfiber is easy to mashing.But common production technology
There is the long shadow of beating time in the mashing papermaking process in the application process of certain customers in the glass microfiber of production
Ring the poor phenomenon for reducing paper surface flatness of production efficiency, dispersiveness.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention discloses a kind of centrifugation for producing the easily glass microfiber that mashing is scattered
Blowing process.Specifically, the technical solution adopted in the present invention is as follows：
The scattered superfine glass microfibre centrifugal injection method fiber-forming process of a kind of easily mashing, it is characterised in that the technique includes
Following steps：
1）Glass metal is produced：According to mass percent, material composition SiO is chosen2：63-66%, B2O3：4-7%, Al2O3：2.5-
3.5%, mix and fully melt through kiln, clarify, be homogenized after forming component is stable, uniform glass metal；
2）Glass metal wire drawing is into fibre：The glass metal melted is flowed into the centrifugal energy nozzle of centrifuge by supply channel by bushing,
Laterally throw away to form primary fiber from going out wire hole under the action of the centrifugal, annular flame of the primary fiber laterally thrown away in centrifuge
Drawing-off, i.e. a high temperature drawing-off under the action of the high-temperature high-speed airflow that mouth sprays downwards, form the glass micro-fibers of diameter≤5 μm
Dimension, below centrifugal energy nozzle≤10cm places set compressed air ring, the horizontal ejection pressure-air of the compressed air ring, to whereabouts
Under glass microfiber further across the cooling and drawing-off of the pressure-air, i.e. secondary cooling drawing-off, it is further to form diameter
The glass microfiber that the easy mashing reduced disperses,
Wherein, the temperature of glass liquid formed after fusing is 1020-1200 DEG C, and glass flow quantity is 150-400kg/h, centrifugal energy nozzle
Interior holding temperature is 850-1020 DEG C, and the flow for the high-temperature high-speed airflow that annular bocca sprays is 500-900m3/h, and compression is empty
High-pressure air pressure in compression ring is maintained at 0.1Mpa-0.25Mpa.
Preferably, the internal diameter of the compressed air ring is bigger 1-4cm than the diameter of the outer shroud of annular bocca, compressed air ring
Venthole be some apertures for being arranged on inner face.
Additionally preferably, the combustion gas of annular bocca is air and the mixture of natural gas, wherein air and natural gas
Mixed proportion be 10:1-13:1.
It is further preferred that the centrifugal energy nozzle wire vent aperture is 0.6-0.8mm.
In a preferred approach, a diameter of 3-4 μm of the glass microfiber that the easy mashing obtained disperses.
The glass microfiber manufactured by present invention process method, has suitable fibre diameter and length, toughness and strong
Degree, mashing and good dispersion property.
Embodiment
In order to manufacture the glass microfiber with good mashing and dispersion performance, the present invention develops a kind of new manufacture work
Skill, production have suitable diameter, length, toughness and intensity, have the glass microfiber of good mashing dispersion performance.
In one embodiment, centrifugal injection technological requirement glass metal components Component stable and uniform, bubble and the impurity
Less, the glass metal component meets 63%≤SiO2≤ 66%, 4%≤B2O3≤ 7%, 2.5%≤Al2O3≤ 3.5%, glass metal is through peace
Bushing mounted in material path lower part flows into the subsidiary high-speed rotating centrifugal energy nozzle of centrifuge.
In one embodiment, bushing quantifies the glass metal in material path in feeding centrifugal energy nozzle at the uniform velocity, the bushing
For band ear circular hole bushing, material is nickel base superalloy, and aperture of leting slip a remark is 25-32mm, length of leting slip a remark is 70-100mm, using electricity
Mode of heating, to achieve the purpose that quick regulation and stabilized glass flow quantity.
In a preferred embodiment, 1020-1200 DEG C of temperature of glass liquid, glass flow quantity are 150-400kg/h.
In one embodiment, centrifugal energy nozzle is installed on the main shaft of dedicated blowing device centrifuge, passes through motor band
Dynamic centrifugal energy nozzle rotates at a high speed, and the centrifugal energy nozzle outside diameter φ 400mm, wire vent aperture Φ 0.6-0.8mm, flow into from the bushing
Glass in centrifugal energy nozzle laterally throws away to form primary fiber from going out wire hole under the action of the centrifugal force.
In a preferred embodiment, the centrifugal energy nozzle material is nickel base superalloy, 850-1020 DEG C of operating temperature, institute
The origin of heat for stating centrifugal energy nozzle is mainly high-temperature glass liquid heat transfer and high-temperature high-speed airflow heating.
In one embodiment, high-temperature high-speed airflow sprays downwards from the annular bocca of the centrifuge, will laterally get rid of
The primary fiber drawing-off gone out is into the glass microfiber of diameter≤5 μm, i.e. a high temperature drawing-off.The annular bocca inner ring
Diameter phi 404- φ 406mm, the annular bocca width 6-9mm.The high temperature and high speed gas stream of the annular bocca injection
500-900m3/h is measured, fuel gas is air and natural gas mixture, and wherein air and natural gas mixed proportion are 10:1-13:1.
In a further embodiment, the glass microfiber of a high temperature drawing-off is by high-temperature high-speed airflow injection shaping
Afterwards, the pressure-air cooling gone out at the centrifugal energy nozzle lower part≤10cm using compressed air ring spray, is promoted still in melting
The glass microfiber surface quick-hardening shaping of state, i.e. secondary cooling drawing-off.The compressed air ring is arranged on the annular
Outside bocca outer shroud at 1-4cm, the aperture of 120-240 a diameter of φ 1- φ 2.5mm is provided with the compressed air ring,
The pressure-air sprays downwards from the aperture.High-pressure air pressure is 0.1Mpa-0.25MPa in the compressed air ring.
In order to deepen the understanding of the present invention, the present invention is described in further detail below in conjunction with embodiment, the reality
Apply example to be only used for explaining the present invention, protection scope of the present invention is not formed and is limited.
Embodiment 1：The glass microfiber that the easy mashing of 3-4 μm of average diameter disperses.
Prepare mixture by regulation, fully melt through kiln, clarify, be homogenized after forming component is stable, uniform glass metal,
Glass metal component meets SiO2：64%, B2O3：5.5%, Al2O3：3.5% requirement.The glass metal melted flows into supply channel and adjusts
Temperature of glass liquid is to 1100 ± 15 DEG C.Bushing of the aperture for 30mm is selected, glass liquid stream is controlled by adjusting bushing heated current
Measure as 300 ± 20kg/h.Using outside diameter φ 400mm, the nickel base superalloy centrifugal energy nozzle of wire vent aperture φ 0.7mm, adjust from
950 ± 20 DEG C of heart nozzle temperature.It is φ 404mm to adjust annular bocca annular diameters, and annular bocca width is 8mm.Adjust
The air capacity of blast pass is 800m3/h, adjusts air, natural gas mixed proportion is 12:1.The outlet of compressed air ring is set
Small hole number is 200, and hole diameter is φ 1.8mm, and adjusting compressed air pressure is 0.16MPa.Pass through above-mentioned centrifugal injection
Technique can obtain a diameter of 3-4 μm of the glass microfiber for being easy to mashing and disperseing.
Embodiments of the present invention are described in detail above in conjunction with specific embodiment, but the invention is not restricted to upper
Embodiment is stated, in the knowledge that technical field those of ordinary skill possesses, the present invention can also not departed from
Made a variety of changes on the premise of objective.
Claims (5)
- A kind of 1. scattered superfine glass microfibre centrifugal injection method fiber-forming process of easily mashing, it is characterised in that the technique bag Include following steps：1）Glass metal is produced：According to mass percent, material composition SiO is chosen2：63-66%, B2O3：4-7%, Al2O3：2.5- 3.5%, mix and fully melt through kiln, clarify, be homogenized after forming component is stable, uniform glass metal；2）Glass metal wire drawing is into fibre：The glass metal melted is flowed into the centrifugal energy nozzle of centrifuge by supply channel by bushing, Laterally throw away to form primary fiber from going out wire hole under the action of the centrifugal, annular flame of the primary fiber laterally thrown away in centrifuge Drawing-off, i.e. a high temperature drawing-off under the action of the high-temperature high-speed airflow that mouth sprays downwards, form the glass micro-fibers of diameter≤5 μm Dimension, below centrifugal energy nozzle≤10cm places set compressed air ring, the horizontal ejection pressure-air of the compressed air ring, to whereabouts Under glass microfiber further across the cooling and drawing-off of the pressure-air, i.e. secondary cooling drawing-off, it is further to form diameter The glass microfiber that the easy mashing reduced disperses,Wherein, the temperature of glass liquid formed after fusing is 1020-1200 DEG C, and glass flow quantity is 150-400kg/h, centrifugal energy nozzle Interior holding temperature is 850-1020 DEG C, and the flow for the high-temperature high-speed airflow that annular bocca sprays is 500-900m3/h, and compression is empty High-pressure air pressure in compression ring is maintained at 0.1Mpa-0.25Mpa.
- 2. the scattered superfine glass microfibre centrifugal injection method fiber-forming process of easily mashing as claimed in claim 1, its feature exist In the internal diameter of the compressed air ring is bigger 1-4cm than the diameter of the outer shroud of annular bocca, and the venthole of compressed air ring is to set Put some apertures in inner face.
- 3. the scattered superfine glass microfibre centrifugal injection method fiber-forming process of easily mashing as claimed in claim 1, its feature exist In the combustion gas of annular bocca is air and the mixture of natural gas, and the wherein mixed proportion of air and natural gas is 10:1- 13:1。
- 4. the scattered superfine glass microfibre centrifugal injection method fiber-forming process of easily mashing as claimed in claim 1, its feature exist In the centrifugal energy nozzle wire vent aperture is 0.6-0.8mm.
- 5. the scattered superfine glass microfibre centrifugal injection method fiber-forming process of easily mashing as claimed in claim 1, its feature exist In a diameter of 3-4 μm of the glass microfiber that the easy mashing obtained disperses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711164527.8A CN108002699A (en) | 2017-11-21 | 2017-11-21 | A kind of scattered superfine glass microfibre centrifugal injection method fiber-forming process of easily mashing |
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| CN201711164527.8A CN108002699A (en) | 2017-11-21 | 2017-11-21 | A kind of scattered superfine glass microfibre centrifugal injection method fiber-forming process of easily mashing |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110981184A (en) * | 2019-11-25 | 2020-04-10 | 东营华德利新材料有限公司 | Production device and production method of centrifugal blowing and pulping integrated superfine glass fiber cotton |
| CN112663228A (en) * | 2020-12-22 | 2021-04-16 | 陕西省石油化工研究设计院 | Method for preparing micro-nano-scale GF (glass fiber) and PP (polypropylene) composite material |
| WO2021143308A1 (en) * | 2020-01-19 | 2021-07-22 | 赢胜节能集团有限公司 | Environmentally-friendly method for preparing superfine fiber glass wool |
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| CN103570237A (en) * | 2012-07-31 | 2014-02-12 | 苏州维艾普新材料有限公司 | Low-temperature centrifugation method for preparing superfine glass wool |
| CN103570247A (en) * | 2012-07-24 | 2014-02-12 | 南京航空航天大学 | Ultrafine glass wool obtained by centrifugation and preparation method thereof |
| CN103641383A (en) * | 2013-12-10 | 2014-03-19 | 重庆再升科技股份有限公司 | Special thermal insulation glass fiber composite material for aviation and preparation method thereof |
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Patent Citations (5)
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| CN103570247A (en) * | 2012-07-24 | 2014-02-12 | 南京航空航天大学 | Ultrafine glass wool obtained by centrifugation and preparation method thereof |
| CN103570237A (en) * | 2012-07-31 | 2014-02-12 | 苏州维艾普新材料有限公司 | Low-temperature centrifugation method for preparing superfine glass wool |
| CN104628251A (en) * | 2013-11-13 | 2015-05-20 | 南京航空航天大学 | Low-beating degree ultrafine centrifugal glass wool drawing device and drawing method |
| CN103641383A (en) * | 2013-12-10 | 2014-03-19 | 重庆再升科技股份有限公司 | Special thermal insulation glass fiber composite material for aviation and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110981184A (en) * | 2019-11-25 | 2020-04-10 | 东营华德利新材料有限公司 | Production device and production method of centrifugal blowing and pulping integrated superfine glass fiber cotton |
| WO2021143308A1 (en) * | 2020-01-19 | 2021-07-22 | 赢胜节能集团有限公司 | Environmentally-friendly method for preparing superfine fiber glass wool |
| CN112663228A (en) * | 2020-12-22 | 2021-04-16 | 陕西省石油化工研究设计院 | Method for preparing micro-nano-scale GF (glass fiber) and PP (polypropylene) composite material |
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Application publication date: 20180508 |