CN108774751A - Viscose deaeration system - Google Patents
Viscose deaeration system Download PDFInfo
- Publication number
- CN108774751A CN108774751A CN201810902137.4A CN201810902137A CN108774751A CN 108774751 A CN108774751 A CN 108774751A CN 201810902137 A CN201810902137 A CN 201810902137A CN 108774751 A CN108774751 A CN 108774751A
- Authority
- CN
- China
- Prior art keywords
- viscose
- knockout drum
- separator
- air ejector
- gas
- Prior art date
- 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.)
- Pending
Links
- 229920000297 Rayon Polymers 0.000 title claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 238000000926 separation method Methods 0.000 claims abstract description 6
- 239000003292 glue Substances 0.000 claims description 26
- 230000008676 import Effects 0.000 claims description 8
- 239000000110 cooling liquid Substances 0.000 claims description 7
- 230000005494 condensation Effects 0.000 claims 1
- 238000009833 condensation Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 17
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 9
- 238000009987 spinning Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 229920002678 cellulose Polymers 0.000 description 4
- 239000001913 cellulose Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 239000003513 alkali Substances 0.000 description 3
- 230000005587 bubbling Effects 0.000 description 3
- 239000002826 coolant Substances 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000009835 boiling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D1/00—Treatment of filament-forming or like material
- D01D1/10—Filtering or de-aerating the spinning solution or melt
- D01D1/103—De-aerating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Artificial Filaments (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
The invention discloses a viscose defoaming system, which comprises a defoaming barrel, a pre-separator, a pre-condenser, an air ejector, a gas-liquid separation tank and a water circulation vacuum pump, wherein the pre-separator is arranged on the defoaming barrel; the viscose with the bubbles enters a defoaming barrel, the bubbles take away water vapor and air and enter a pre-separator under a vacuum environment, the pre-separator is connected with a pre-condenser, the pre-condenser is connected with an air ejector, the air ejector is connected with an inlet of a gas-liquid separation tank through a water circulation vacuum pump, and an outlet of the gas-liquid separation tank is connected with the air ejector.
Description
Technical field
The present invention relates to technical field of viscose production, more particularly to a kind of viscose glue continuity bubbling system.
Background technology
Viscose glue is impregnated in alkali by a certain number of slurry Hectometer, and loose wadding is formed after squeezing removes extra lye and crushes
Then the alkali cellulose of shape acts on again with carbon disulfide and generates cellulose sulfonate, which is uniformly dissolved in diluted alkaline
Can be made into viscose glue in liquid, after viscose glue is made, also need after the delicate procedures such as filtering, deaeration, maturation, can just be made it is qualified and
Reach the viscose glue of spinning requirement.In the actual production process, spinning properties and raising fiber of these delicate procedures for viscose glue
The quality of finished product has great significance, and de-aeration therein is the bubble being discharged using deaerator in viscose glue, to prevent
It is that will spin the bubble in glue by continuously taking off system only thus to make the decline of spinning break and fibrous finished product quality, the purpose of deaeration
It removes, the viscose glue of bubble-free is provided for spinning workshop.Air containing air bubble and dissolving in viscose glue.In spinning, air pocket
It can make spinning break, lousiness；Minute bubbles can cause individual spinneret orifice fracture of wires and keep the number of filaments of ejection insufficient；Smaller bubble
Formation " cavity filament " in the fibre can then be retained, the strength of finished fiber is reduced, seriously affect final product quality.Deaeration principle：It is logical
It crosses and pressure in deaerator is reduced to a certain degree（20kpa）, vapor boils in viscose glue in deaerator, evaporation, and band is leaked water steaming
Air, CS are taken away while gas2、H2The gases such as S.Bubble in viscose glue includes：A kind of condensable gas（Vapor）, one kind is not
Condensable gas（Air, CS2、H2S）.
Prior art bubbling system as shown in Figure 1, evacuation of viscose system by deaerator A, steam jet pump B, liquid ring vacuum
Pump C, condenser D and cooling tower circulatory system composition.The bubbling system has the following problems：
Steam consumption quantity is big, and single line consumes 12600 tons/year of steam；Power consumption is high；4-5 DEG C of the temperature difference before and after deaeration, degasifying effect compared with
Difference；Condenser coolant temperature is high, up to 35 DEG C, and steam jet pump discharge steam cannot be condensed effectively, and vacuum pump pumping is negative
Lotus is big, and vacuum degree is poor（Condenser coolant liquid is provided by the cooling tower circulatory system, and summer degree environment temperature is high, and cooling pond water temperature is high,
Cooling effect is poor）.The steam injection used, dilute glue（Swelling body quantity is high）Cellulose sulfonic acid is dissolved after being mixed with dissolving alkali
Ester, technique is immature, and cellulose sulfonate solute effect is bad.Its all gas is removed by water ring vacuum pump.
Also Chinese patent notification number is CN204637661U, discloses a kind of deaeration system suitable for viscose filament yarn production
System, including it is connected with the defoaming device of auxiliary body, the auxiliary body is the technique system for realizing defoaming device vacuum environment
System is equipped with gumming pump on the defoaming device, and one end of the gumming pump is connected with viscose glue supply line, the other end and deaeration
The arrival end of device is connected.The present invention integrates the viscose glue of more diaphragm type deaerators of original supply through viscose glue supply line
Afterwards, it send together to defoaming device and carries out deaeration, and use vacuum defoamation mode, the viscose quality of abjection is more uniform, and than production
The comparable more diaphragm types deaerator deaeration quality of energy is more stablized, and energy consumption is lower, and floor space is less.It is above-mentioned practical new
The gas of type is removed by water ring vacuum pump.
Invention content
In order to overcome the defect of the above-mentioned prior art, the present invention provides a kind of evacuation of viscose system, which, which reduces, steams
Gas consumes, and reduces blowdown, reaches environmentally protective.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
A kind of evacuation of viscose system, including deaerator, it is characterised in that：Further include pre-separator, preposition condenser, air spray
Emitter, knockout drum and water circulation vavuum pump；Viscose glue with bubble enters deaerator, and under vacuum conditions, bubble band is leaked water
Steam and air enter pre-separator, and pre-separator is connect with preposition condenser, and preposition condenser connects with air ejector
It connects, air ejector is connected by the import of water circulation vavuum pump and knockout drum, and outlet and the air of knockout drum spray
Emitter connects.Viscose glue with bubble, even into deaerator, under vacuum conditions, vapor and air are taken away in bubble boiling.
Gas enters pre-separator（Remove the solid impurities such as rubber, blob of viscose a small amount of in gas）, enter back into preposition condenser（Make water
Steam liquefaction is liquid, removes condensable gas）, into air ejector, be pumped into knockout drum, removal air, CS2,
The not condensable gas such as H2S.
Further include heat exchanger, the import of the cooling liquid outlet and heat exchanger of knockout drum connects, and the outlet of heat exchanger is logical
The cooling liquid inlet for crossing water circulation vavuum pump and knockout drum connects.
The pipeline that the outlet of the knockout drum is connect with air ejector is equipped with valve.
The present invention has the following advantages：
1, the present invention includes pre-separator, preposition condenser, air ejector, knockout drum and water circulation vavuum pump；Band
The viscose glue of bubble enters deaerator, and under vacuum conditions, bubble takes away vapor and air enters pre-separator, preposition separation
Device is connect with preposition condenser, and preposition condenser is connect with air ejector, and air ejector passes through water circulation vavuum pump and gas
The import of liquid knockout drum connects, and the outlet of knockout drum is connect with air ejector.The system does not use steam, reaches section
About energy consumption.After being sprayed using air, on-site noise can drop to 50 decibels from 110 decibels, avoid noise pollution.Former technique is viscous
4-5 DEG C or so of the temperature difference after glue deaeration；Evacuation of viscose effect is insufficient under this temperature difference, and showing has micro-bubble in viscose glue,
Cavity filament and lousiness are on the high side in spinning process.8 DEG C -11 DEG C are increased to, evacuation of viscose effect is good under this temperature difference, shows viscous
Almost without bubble in glue, cavity filament and lousiness are seldom in spinning process, improve viscose glue spinnability.
2, the present invention includes heat exchanger, and the import of the cooling liquid outlet and heat exchanger of knockout drum connects, heat exchanger
Outlet is connected by the cooling liquid inlet of water circulation vavuum pump and knockout drum.Cooling water circulation uses, and avoids newly-increased daily
Water consumption is produced, blowdown is reduced, reaches environmentally protective.
Description of the drawings
Fig. 1 is the structural schematic diagram of the prior art；
Fig. 2 is the structural schematic diagram of the present invention.
It is marked in figure：1, deaerator, 2, pre-separator, 3, preposition condenser, 4, air ejector, 5, gas-liquid separation
Tank, 6, water circulation vavuum pump, 7, heat exchanger.
Specific implementation mode
The present invention is further elaborated below in conjunction with the accompanying drawings, but the present invention is not limited to following embodiment, the methods
It is conventional method unless otherwise instructed, the material can obtain unless otherwise instructed from open commercial sources.
Embodiment 1
As shown in Fig. 2, a kind of evacuation of viscose system, including deaerator 1, further include pre-separator 2, preposition condenser 3, air
Injector 4, knockout drum 6 and water circulation vavuum pump 5；Viscose glue with bubble enters deaerator 1, under vacuum conditions, bubble
It takes away vapor and air enters pre-separator 2, pre-separator 2 is connect with preposition condenser 3, preposition condenser 3 and sky
Gas blowout emitter 4 connects, and air ejector 4 is connect by water circulation vavuum pump 6 with the import of knockout drum 5, knockout drum 5
Outlet connect with air ejector 4.Its operation principle is：Viscose glue with bubble, even into deaerator, in vacuum environment
Under, vapor and air are taken away in bubble boiling.Gas enters pre-separator（It is solid to remove rubber, blob of viscose a small amount of in gas etc.
Body impurity）, enter back into preposition condenser（It is liquid to make vapor liquefaction, removes condensable gas）, into air ejector,
It is pumped into knockout drum, removes the not condensable gas such as air, CS2, H2S.
To avoid newly-increased production water consumption daily, blowdown is reduced, further includes heat exchanger 7, the coolant liquid of knockout drum 5 goes out
Mouth is connect with the import of heat exchanger 7, and the outlet of heat exchanger 7 passes through the cooling liquid inlet of water circulation vavuum pump 6 and knockout drum 5
Connection.The pipeline that the outlet of the knockout drum 5 is connect with air ejector 4 is equipped with valve.
Claims (3)
1. a kind of evacuation of viscose system, including deaerator (1), it is characterised in that：Further include pre-separator (2), preposition condensation
Device (3), air ejector (4), knockout drum (5) and water circulation vavuum pump (6)；Viscose glue with bubble enters deaerator (1),
Under vacuum conditions, bubble takes away vapor and air enters pre-separator (2), pre-separator (2) and preposition condenser
(3) it connects, preposition condenser (3) connect with air ejector (4), and air ejector (4) passes through water circulation vavuum pump (6) and gas
The import of liquid knockout drum (5) connects, and the outlet of knockout drum (5) is connect with air ejector (4).
2. a kind of evacuation of viscose system according to claim 1, it is characterised in that：Further include heat exchanger (7), gas-liquid separation
The cooling liquid outlet of tank (5) is connect with the import of heat exchanger (7), and the outlet of heat exchanger (7) passes through water circulation vavuum pump (6) and gas
The cooling liquid inlet of liquid knockout drum (5) connects.
3. a kind of evacuation of viscose system according to claim 1, it is characterised in that：The outlet of the knockout drum (5)
The pipeline being connect with air ejector (4) is equipped with valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810902137.4A CN108774751A (en) | 2018-08-09 | 2018-08-09 | Viscose deaeration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810902137.4A CN108774751A (en) | 2018-08-09 | 2018-08-09 | Viscose deaeration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108774751A true CN108774751A (en) | 2018-11-09 |
Family
ID=64029264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810902137.4A Pending CN108774751A (en) | 2018-08-09 | 2018-08-09 | Viscose deaeration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108774751A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111331883A (en) * | 2019-10-29 | 2020-06-26 | 上海辛帕工业自动化有限公司 | Defoaming and pouring device and defoaming and pouring method |
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|---|---|---|---|---|
| GB726804A (en) * | 1951-09-25 | 1955-03-23 | Nyma Kunstzijdespinnerij Nv | Improvements in or relating to the deaeration of viscose |
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-
2018
- 2018-08-09 CN CN201810902137.4A patent/CN108774751A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111331883A (en) * | 2019-10-29 | 2020-06-26 | 上海辛帕工业自动化有限公司 | Defoaming and pouring device and defoaming and pouring method |
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Application publication date: 20181109 |