CN101974789A - Twin-screw extruder pressurizing system used for blended spinning - Google Patents
Twin-screw extruder pressurizing system used for blended spinning Download PDFInfo
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- CN101974789A CN101974789A CN 201010534718 CN201010534718A CN101974789A CN 101974789 A CN101974789 A CN 101974789A CN 201010534718 CN201010534718 CN 201010534718 CN 201010534718 A CN201010534718 A CN 201010534718A CN 101974789 A CN101974789 A CN 101974789A
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- screw extruder
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- booster pump
- pressure sensor
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Abstract
The invention relates to a twin-screw extruder pressurizing system used for blended spinning. The pressurizing system comprises a twin-screw extruder, a pump base, a booster pump, a metering pump, a pressure sensor and a backflow flow regulating valve, wherein a backflow pipeline is arranged between the booster pump and the metering pump; the pressure sensor and the backflow flow regulating valve are arranged in the backflow pipeline; the blend melt flow of the booster pump is higher than that of the metering pump; the pressure between the booster pump and the metering pump is ensured to be between 6 and 10 MPa; and simultaneously extra melt is returned to the head, under a low pressure, of the extruder through the backflow flow regulating valve under the monitoring of the pressure sensor. The pump base adopted by the pressurizing system is provided with a fluid material inlet, a booster pump inlet, a booster pump outlet, a metering pump inlet, a metering pump outlet, a metered fluid outlet, and the backflow pipeline provided with the pressure sensor and the backflow flow regulating valve.
Description
Technical field
The present invention relates to the manufacturing equipment technology of blending and modifying fibre in differentiation, be specially a kind of double screw extruder pressure charging system that is used to produce the blending and modifying fibre in differentiation.
Background technology
The various modified powders of adding, coupling agent, dispersant are the important channels of preparation modified fibre in fiber-forming polymer, are used widely in the production of chemical fibre field.
Chemical fibre being carried out various chemical modifications and physical modification, make it meet or exceed natural fabric, is the main method of preparation fibre in differentiation.In the production process of traditional blending and modifying fibre in differentiation, generally fiber-forming polymer, various modified powder, coupling agent, dispersant are quantitatively added double screw extruder together, material is in double screw extruder behind the melt blending, extrude from the extruder die head, after pelletizing, make the blending and modifying section.The blending and modifying section is made the blending and modifying fibre in differentiation again through the single screw extrusion machine melt spinning.Through twice fusion, one side energy resource consumption height; Cause the thermal degradation of fiber-forming polymer on the other hand easily, its residue can promote the aging of fiber use.Adopt double screw extruder directly to carry out co-blended spinning, in order to remove the bubble in the spin fluid after the blend, on double screw extruder vaccum exhaust outlet will be set, the melt that enters head like this is not easy to reach high pressure, will influence carrying out smoothly of spinning process.
Summary of the invention
At the deficiencies in the prior art, the technical problem to be solved in the present invention is, designs a kind of double screw extruder pressure charging system that is used for co-blended spinning, makes through the spinning melt after blended melting, the vacuum defoamation to reach certain pressure, so that carry out spinning smoothly.
The scheme that the present invention solves the double screw extruder pressure charging system of described production blending and modifying fibre in differentiation is: the pump seat that designs a kind of special construction.Pump seat is a cuboid, the rear end connects the double screw extruder head, and left end connects booster pump, and right-hand member connects measuring pump, and in booster pump and melt flow channel that measuring pump links to each other, be provided with pressure sensor and return flow control valve in melt reflux line and the reflux line.At first by double screw extruder blend melt is sent into booster pump through pump seat, the blend melt after the supercharging is sent into measuring pump through pump seat, and the blend melt after supercharging, metering is sent into spinneret assembly through pump seat again, carries out spinning.The blend melt flow of booster pump will be higher than the blend melt flow of measuring pump, for making melt Conveying balance, the stable melt pressure that enters measuring pump, when the pressure between assurance booster pump and measuring pump is 6-10MPa, the melt that has more is under the monitoring of pressure sensor, through the return flow control valve, get back to the lower cross-head of pressure.
Description of drawings
Fig. 1 is the double screw extruder pressure charging system process flow diagram of an embodiment of the present invention.
Fig. 2 is the runner schematic diagram in the pump seat of double screw extruder pressure charging system of an embodiment of the present invention.
The specific embodiment
Further narrate the present invention below in conjunction with embodiment and accompanying drawing thereof.Specific embodiment does not constitute the restriction to claim of the present invention just in order to further specify the present invention.
Embodiment 1
Further narrate the present invention below in conjunction with embodiment and accompanying drawing thereof.Specific embodiment is just formed and structure in order further to clearly demonstrate double screw extruder pressure charging system of the present invention, does not constitute the restriction to claim of the present invention.
The double screw extruder pressure charging system of the present invention's design comprises double screw extruder 1, pump seat 2, booster pump 3, measuring pump 4, pressure sensor 5, return flow control valve 6.Fiber-forming polymer, modified powder, coupling agent, dispersant are under the double screw extruder effect, finish blend, fusion, vacuum defoamation, blend melt subsequently enters pump seat inlet 21, enter booster pump 3 through pump seat outlet 22, the blend melt after the supercharging enters pump seat inlet 23, enters measuring pump 4 through 24, blend melt after the metering enters pump seat inlet 25,, enter spinneret assembly, carry out spinning after the blend melt after the supercharging, metering is extruded from pump seat outlet 26.
The blend melt flow of booster pump will be higher than the blend melt flow of measuring pump, promptly in the ducted blend melt Pressure control of pump seat 23 to 24 in 8MPa, the melt that has more through the return flow control valve, is got back to the lower cross-head of pressure under the monitoring of pressure sensor.
The present invention does not address part and is applicable to prior art.
Claims (2)
1. double screw extruder pressure charging system that is used for co-blended spinning, this pressure charging system comprises double screw extruder, pump seat, booster pump, measuring pump, pressure sensor, return flow control valve, it is characterized in that being provided with reflux line between booster pump and the measuring pump, pressure sensor and return flow control valve are arranged in the reflux line; During work, the blend melt flow of booster pump will be higher than the blend melt flow of measuring pump, for making melt Conveying balance, the stable melt pressure that enters measuring pump, when the pressure between assurance booster pump and measuring pump is 6-10MPa, the melt that has more is under the monitoring of pressure sensor, through the return flow control valve, get back to the lower cross-head of pressure.
2. a kind of double screw extruder pressure charging system that is used for co-blended spinning according to claim 1, it is characterized in that having offered on the described pump seat fluid foods import, booster pump and measuring pump import and export, fluid issuing after metering, and the reflux line that pressure sensor and return flow control valve are housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105347180A CN101974789B (en) | 2010-11-04 | 2010-11-04 | Twin-screw extruder pressurizing system used for blended spinning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105347180A CN101974789B (en) | 2010-11-04 | 2010-11-04 | Twin-screw extruder pressurizing system used for blended spinning |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101974789A true CN101974789A (en) | 2011-02-16 |
| CN101974789B CN101974789B (en) | 2012-05-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105347180A Expired - Fee Related CN101974789B (en) | 2010-11-04 | 2010-11-04 | Twin-screw extruder pressurizing system used for blended spinning |
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| Country | Link |
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| CN (1) | CN101974789B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104073894A (en) * | 2014-07-01 | 2014-10-01 | 武汉纺织大学 | Efficient and short-process multi-component melt spinning device |
| CN110484978A (en) * | 2019-08-30 | 2019-11-22 | 河南乾元过滤设备有限公司 | A kind of pressurization fondant filter |
| CN112301546A (en) * | 2020-11-02 | 2021-02-02 | 江苏惠沣环保科技有限公司 | Process for manufacturing permanently electrostatic melt-blown fabric by using graphene additive |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2344399Y (en) * | 1998-08-07 | 1999-10-20 | 湖北省环境科学研究院 | Multi-stage water-purifying device |
| CN1515706A (en) * | 2003-08-28 | 2004-07-28 | 鹰 冯 | Production equipment of polyurethane fibre chip and application method of said polyurethane fibre chip |
| CN1884834A (en) * | 2006-07-10 | 2006-12-27 | 西安交通大学 | Double-screw mixing transmission pump |
| CN101220522A (en) * | 2008-01-25 | 2008-07-16 | 东华大学 | Method for manufacturing cellulose/ion liquid spinning liquid with double-screw extrusion machine |
| CN201190558Y (en) * | 2008-04-23 | 2009-02-04 | 东营市科美特工贸有限公司 | Supercharging water injection device |
-
2010
- 2010-11-04 CN CN2010105347180A patent/CN101974789B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2344399Y (en) * | 1998-08-07 | 1999-10-20 | 湖北省环境科学研究院 | Multi-stage water-purifying device |
| CN1515706A (en) * | 2003-08-28 | 2004-07-28 | 鹰 冯 | Production equipment of polyurethane fibre chip and application method of said polyurethane fibre chip |
| CN1884834A (en) * | 2006-07-10 | 2006-12-27 | 西安交通大学 | Double-screw mixing transmission pump |
| CN101220522A (en) * | 2008-01-25 | 2008-07-16 | 东华大学 | Method for manufacturing cellulose/ion liquid spinning liquid with double-screw extrusion machine |
| CN201190558Y (en) * | 2008-04-23 | 2009-02-04 | 东营市科美特工贸有限公司 | Supercharging water injection device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104073894A (en) * | 2014-07-01 | 2014-10-01 | 武汉纺织大学 | Efficient and short-process multi-component melt spinning device |
| CN110484978A (en) * | 2019-08-30 | 2019-11-22 | 河南乾元过滤设备有限公司 | A kind of pressurization fondant filter |
| CN112301546A (en) * | 2020-11-02 | 2021-02-02 | 江苏惠沣环保科技有限公司 | Process for manufacturing permanently electrostatic melt-blown fabric by using graphene additive |
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| Publication number | Publication date |
|---|---|
| CN101974789B (en) | 2012-05-02 |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20120502 Termination date: 20161104 |