CN110258162A - Prepare cellulose spinning slurries device and preparation method thereof - Google Patents
Prepare cellulose spinning slurries device and preparation method thereof Download PDFInfo
- Publication number
- CN110258162A CN110258162A CN201910507271.9A CN201910507271A CN110258162A CN 110258162 A CN110258162 A CN 110258162A CN 201910507271 A CN201910507271 A CN 201910507271A CN 110258162 A CN110258162 A CN 110258162A
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- CN
- China
- Prior art keywords
- twin
- double
- screw extruder
- slurries
- nmmo
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/02—Methods of beating; Beaters of the Hollander type
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
It is a kind of to prepare cellulose spinning slurries device and preparation method thereof, including twin (double) screw extruder, screw conveyor and gear pump, one end of the twin (double) screw extruder is equipped with feed inlet, feed inlet includes first charging aperture and second charging aperture, the second charging aperture is connected to screw conveyor, the discharge port of the twin (double) screw extruder other end is connected to gear pump, in screw extruder cavity slurries when from the beginning portion to tail portion moves ahead pressure gradually rise, especially slurries are accelerated uniformly to mix under the action of the larger pressure in tail portion, bubble therein in being extruded, accelerate slurries and prepares process, shorten slurries preparation time, structure is simple, it is easy to use.
Description
Technical field
The present invention relates to the slurries preparation facilities fields of NMMO dissolution cellulose spinning, prepare fiber more particularly, to a kind of
Plain spinning slurry device and preparation method thereof.
Background technique
NMMO dissolution cellulose spinning technique is relatively simple, and solvent is recyclable, no pollution to the environment.In use, NMMO
It applies in the form of hydrates, it is liquid under high temperature that wherein NMMO monohydrate and NMMO dihydrate are solid-state at normal temperature, can
Dissolve cellulose；NMMO trihydrate and NMMO tetrahydrate are liquid at normal temperature, cannot dissolve cellulose；Various NMMO water
It closes object to mutually convert with the mass fraction difference of NMMO and water, cellulose fiber spinning exactly utilizes this characteristic of NMMO to realize.
When (being greater than 85 DEG C) when high temperature, NMMO is easy to happen decomposition, discoloration, and temperature is higher, decomposes, discoloration Shaoxing opera, produces to spinning
It is unfavorable.
Chinese patent CN106222771B " a kind of preparation method of cellulose fibre " carries out fibre using improved method
The preparation of cellulose fiber, and do not improved in equipment, it is mixed when preparation prepares cellulose spinning slurries using common
Clutch, where the problem of also will appear appeal, when high temperature (is greater than 85 DEG C), NMMO is easy to happen decomposition, discoloration, and temperature is got over
Height decomposes, discoloration Shaoxing opera, and it is unfavorable to produce to spinning.
Summary of the invention
Cellulose spinning slurries device and preparation method thereof is prepared the main purpose of the present invention is to provide a kind of, is solved high
When (being greater than 85 DEG C) when warm, NMMO is easy to happen decomposition, discoloration, and temperature is higher, decomposes, discoloration Shaoxing opera, not to spinning production
The problem of benefit.
In order to solve the above technical problems, the technical scheme adopted by the invention is that: it is a kind of to prepare cellulose spinning slurries dress
It sets, including twin (double) screw extruder, screw conveyor and gear pump, one end of the twin (double) screw extruder is equipped with feed inlet, charging
Mouth includes first charging aperture and second charging aperture, and the second charging aperture is connected to screw conveyor, the twin (double) screw extruder
The discharge port of the other end is connected to gear pump.
In preferred embodiment, weighing belt is equipped between the second charging aperture and screw conveyor.
In preferred embodiment, the first charging aperture is equipped with fluid flowmeter.
In preferred embodiment, the twin (double) screw extruder outer wall is equipped with heating mantle.
In preferred embodiment, the twin (double) screw extruder is equipped with exhaust outlet close to the place of discharge port.
This method comprises: S1, preparation NMMO are NMMO of the moisture less than 15%, by the heating mantle of twin (double) screw extruder outer wall
85 ° ~ 95 DEG C are heated to, guarantees that the temperature of NMMO is greater than 85 DEG C；
S2, NMMO is inputted into twin (double) screw extruder after fluid flowmeter measures；
S3, screw conveyor will be transported to pulp powder weighing belt weight calculation, and twin (double) screw extruder is also inputted after weight calculation；
S4, twin (double) screw extruder screw rod be divided into according to function and feed intake, mix, be swollen and dissolve four sections, the shape of every section of screw rod is equal
It changes, is not exactly the same, NMMO and pulp powder, by screw mixes, stirring, be gradually swollen in the cavity of twin (double) screw extruder,
Dissolution forms slurries；
S5, it is transported to gear pump, gear pump is transported to slurries using unit.
Cellulose spinning slurries device and preparation method thereof is prepared the present invention provides a kind of, by moisture less than 15%
It is mixed, is stirred inside NMMO and pulp powder conveying twin (double) screw extruder, be gradually swollen, dissolve and form slurries, then be transported to
Gear pump, gear pump are as required transported to slurries using unit, due to the constraint of gear pump 5, in twin (double) screw extruder cavity
Pressure gradually rises when slurries move ahead from head to tail portion, especially accelerates slurries uniformly to mix under the action of the larger pressure in tail portion
It closes, bubble therein is obtained in being extruded, and is accelerated slurries and is prepared process, shortens slurries preparation time, and slurries are used not while processed
Storage, when (being greater than 85 DEG C) when solving high temperature, NMMO is easy to happen decomposition, discoloration, and temperature is higher, decomposes, discoloration Shaoxing opera, right
Spinning produces unfavorable problem.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples:
Fig. 1 is overall system schematic diagram figure of the present invention；
Fig. 2 is twin (double) screw extruder schematic diagram of the present invention；
In figure: screw conveyor 1；Weighing belt 2；Fluid flowmeter 3；Twin (double) screw extruder 4；Gear pump 5；Heating mantle 6；Discharge port
7；First charging aperture 8；Second charging aperture 9；Exhaust outlet 10.
Specific embodiment
Embodiment 1
As shown in Figure 1 and 2, a kind of to prepare cellulose spinning slurries device, including twin (double) screw extruder 4, screw conveyor 1 and tooth
One end of wheel pump 5, the twin (double) screw extruder 4 is equipped with feed inlet, and feed inlet includes first charging aperture 8 and second charging aperture 9, institute
Second charging aperture 9 to be stated to be connected to screw conveyor 1, the discharge port 7 of 4 other end of twin (double) screw extruder is connected to gear pump 5,
Thus structure, first charging aperture 8 is for conveying NMMO liquid, and second charging aperture 9 is for conveying pulp powder, twin (double) screw extruder 4
Using conjugation twin-screw in the same direction, it is conjugated twin-screw enhancing slurries stirring intensity and crushing strength in the same direction, due to the pact of gear pump 5
Beam, in 4 cavity of twin (double) screw extruder slurries when from the beginning portion moves ahead to tail portion pressure gradually rise, especially in the larger pressure in tail portion
Slurries are accelerated uniformly to mix under the action of power, bubble therein is obtained in being extruded, and is accelerated slurries and is prepared process, shortens slurries system
The standby time, and slurries while processed with not storing, structure is simple, easy to use.
In preferred embodiment, weighing belt 2 is equipped between the second charging aperture 9 and screw conveyor 1, structure is simple, is used for
The weight of record conveying pulp powder.
In preferred embodiment, the first charging aperture 8 is equipped with fluid flowmeter 3, and structure is simple, for recording conveying NMMO
The metering of liquid.
In preferred embodiment, 4 outer wall of twin (double) screw extruder is equipped with heating mantle 6, and structure is simple, controls the system of feeding
NMMO temperature is greater than 85 DEG C, and when (being greater than 85 DEG C) when solving high temperature, NMMO is easy to happen decomposition, discoloration, and temperature is higher, point
Solution, discoloration Shaoxing opera, unfavorable problem is produced to spinning.
In preferred embodiment, the twin (double) screw extruder 4 is divided by function to feed intake, mixes, being swollen, dissolving four sections, every section of spiral shell
The shape of bar changes, and is not quite similar.
In preferred embodiment, cavity top of the twin (double) screw extruder 4 in the middle part of mixing section is equipped with exhaust outlet 10, structure letter
Single, for the gas in discharge slurries, the cavity top in the middle part of 4 mixing section of twin (double) screw extruder is provided with exhaust outlet 10, gas vent
Have the function of urgent plasma discharge when peep hole and failure concurrently.
Embodiment 2
It 1 further illustrates in conjunction with the embodiments, as shown in Figure 1 and 2, preparation NMMO is NMMO of the moisture less than 15%, and twin-screw is squeezed
The heating mantle 6 of 4 outer wall of press is heated to 85 ° ~ 95 °, and the NMMO moisture of feeding system is made to be greater than 85 DEG C less than 15%, temperature
NMMO, satisfaction prepare the temperature condition of slurries, and when (being greater than 85 DEG C) when solving high temperature, NMMO is easy to happen decomposition, discoloration, and temperature
Degree is higher, decomposes, discoloration Shaoxing opera, unfavorable problem is produced to spinning.
NMMO is inputted into twin (double) screw extruder 4 after the metering of fluid flowmeter 3, screw conveyor 1 will convey pulp powder
It is counted weight to weighing belt 2, twin (double) screw extruder 4, NMMO and pulp the powder quilt in the cavity of twin (double) screw extruder 4 is also inputted after weight calculation
Screw mixes, stirring are gradually swollen, dissolve and form slurries, are transported to gear pump 5, gear pump 5, which is as required transported to slurries, to be made
With unit, due to the constraint of gear pump 5, pressure is gradually when from the beginning portion moves ahead to tail portion for slurries in 4 cavity of twin (double) screw extruder
It increases, especially accelerates slurries uniformly to mix under the action of the larger pressure in tail portion, bubble therein is obtained in being extruded, and accelerates slurry
Liquid prepares process, shortens slurries preparation time, and slurries while processed with not storing.
The above embodiments are only the preferred technical solution of the present invention, and are not construed as limitation of the invention, this hair
Bright protection scope should be with the technical solution of claim record, technical characteristic in the technical solution recorded including claim
Equivalents are protection scope.Equivalent replacement i.e. within this range is improved, also within protection scope of the present invention.
Claims (6)
1. a kind of prepare cellulose spinning slurries device, it is characterized in that: include twin (double) screw extruder (4), screw conveyor (1) and
Gear pump (5), one end of the twin (double) screw extruder (4) are equipped with feed inlet, feed inlet include first charging aperture (8) and second into
Material mouth (9), the second charging aperture (9) are connected to screw conveyor (1), the discharging of twin (double) screw extruder (4) other end
Mouth (7) is connected to gear pump (5).
2. a kind of according to claim 1 prepare cellulose spinning slurries device, it is characterized in that: the second charging aperture (9)
Weighing belt (2) are equipped between screw conveyor (1).
3. a kind of according to claim 1 prepare cellulose spinning slurries device, it is characterized in that: the first charging aperture (8)
It is equipped with fluid flowmeter (3).
4. a kind of according to claim 1 prepare cellulose spinning slurries device, it is characterized in that: the twin (double) screw extruder
(4) outer wall is equipped with heating mantle (6).
5. a kind of according to claim 1 prepare cellulose spinning slurries device, it is characterized in that: the twin (double) screw extruder
(4) place close to discharge port (7) is equipped with exhaust outlet (10).
6. any one of according to claim 1 ~ 5 it is described it is a kind of prepare cellulose spinning slurries device prepare cellulose spinning slurries
Method, this method comprises:
S1, preparation NMMO be NMMO of the moisture less than 15%, by the heating mantle (6) of twin (double) screw extruder (4) outer wall be heated to 85 ° ~
95 DEG C, guarantee that the temperature of NMMO is greater than 85 DEG C；
S2, NMMO is inputted into twin (double) screw extruder (4) after fluid flowmeter (3) metering；
S3, screw conveyor (1) will be transported to pulp powder weighing belt (2) weight calculation, and twin (double) screw extruder is also inputted after weight calculation
(4)；
S4, NMMO and pulp powder are interior by screw mixes, stirring in the cavity of twin (double) screw extruder (4), are gradually swollen, dissolve formation
Slurries；
S5, it is transported to gear pump (5), gear pump (5) is transported to slurries using unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910507271.9A CN110258162A (en) | 2019-06-12 | 2019-06-12 | Prepare cellulose spinning slurries device and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910507271.9A CN110258162A (en) | 2019-06-12 | 2019-06-12 | Prepare cellulose spinning slurries device and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN110258162A true CN110258162A (en) | 2019-09-20 |
Family
ID=67917886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910507271.9A Pending CN110258162A (en) | 2019-06-12 | 2019-06-12 | Prepare cellulose spinning slurries device and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115323501A (en) * | 2022-06-30 | 2022-11-11 | 武汉纺织大学 | Film forming evaporator and method for processing Lyocell fiber spinning solution |
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| CN1796624A (en) * | 2004-12-30 | 2006-07-05 | 株式会社晓星 | Method for producing cellulose fiber |
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| CN102358957A (en) * | 2011-08-24 | 2012-02-22 | 中国纺织科学研究院 | Method for preparing cellulose spinning stock solution |
| CN102933753A (en) * | 2010-04-08 | 2013-02-13 | 利斯特股份公司 | Process for producing a product |
| CN103952775A (en) * | 2014-04-25 | 2014-07-30 | 中国石油化工股份有限公司 | Horizontal double-shaft dissolving and defoaming device |
| KR20180085857A (en) * | 2017-01-19 | 2018-07-30 | 주식회사 효성 | Addititives containing lyocell fibers |
| CN109295506A (en) * | 2018-09-13 | 2019-02-01 | 清华大学 | A kind of p-aramid fiber spinning solution compounding system and its preparation method |
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2019
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Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1336451A (en) * | 2001-09-11 | 2002-02-20 | 东华大学 | Prepn process of spinning dope for producing cellulose fibre through solvent process |
| CN1468889A (en) * | 2002-06-22 | 2004-01-21 | 韩国科学技术研究院 | Process for preparing cellulose solution with excellent workability |
| CN1523139A (en) * | 2003-02-23 | 2004-08-25 | 炯 许 | LYOCELL fabric double screw bolts spinning machine and process therefor |
| CN1612958A (en) * | 2003-06-30 | 2005-05-04 | 株式会社晓星 | A solution containing cellulose dissolved in N-methylmorpholine-N-oxide and high tenacity lyocell multifilament using the same |
| CN1796624A (en) * | 2004-12-30 | 2006-07-05 | 株式会社晓星 | Method for producing cellulose fiber |
| CN101298705A (en) * | 2008-05-26 | 2008-11-05 | 清华大学深圳研究生院 | Method for preparing luminous Lyocell fibre |
| CN101775668A (en) * | 2009-01-12 | 2010-07-14 | 上海博迪纺织新材料有限公司 | High-strength high-modulus polyethylene continuous-dissolution and spinning device with pectinate unwinding device |
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| CN103952775A (en) * | 2014-04-25 | 2014-07-30 | 中国石油化工股份有限公司 | Horizontal double-shaft dissolving and defoaming device |
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| CN109295506A (en) * | 2018-09-13 | 2019-02-01 | 清华大学 | A kind of p-aramid fiber spinning solution compounding system and its preparation method |
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| CN115323501A (en) * | 2022-06-30 | 2022-11-11 | 武汉纺织大学 | Film forming evaporator and method for processing Lyocell fiber spinning solution |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190920 |