CN104004102B - Yellow system in a kind of viscose fiber production - Google Patents
Yellow system in a kind of viscose fiber production Download PDFInfo
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- CN104004102B CN104004102B CN201410247271.7A CN201410247271A CN104004102B CN 104004102 B CN104004102 B CN 104004102B CN 201410247271 A CN201410247271 A CN 201410247271A CN 104004102 B CN104004102 B CN 104004102B
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- alkali
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- dissolved water
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Abstract
The invention provides the yellow system in the production of a kind of viscose fiber, comprise xanthating machine, discharge valve, discharge pipe, pulverizer, described xanthating machine, discharge pipe, pulverizer connect successively, be provided with discharge valve between xanthating machine and discharge pipe, it is characterized in that: described discharge pipe is connected with liquid-inlet pipe; After yellow reaction terminates, add in xanthating machine and dissolve alkali and a dissolved water, after finishing, open discharge valve, in discharge pipe, add secondary dissolved water by liquid-inlet pipe simultaneously, when discharging reaches more than 90%, in xanthating machine, add flushing alkali, rinse and completely namely close discharge valve, stop pulverizer.Native system effectively achieves and shortens the xanthating machine production cycle, improves xanthating machine production capacity, improves stable equipment operation, reduces equipment use electric current, reduces the object of energy consumption.
Description
Technical field
The invention belongs to viscose fiber production field, be specifically related to the yellow system in the production of a kind of viscose fiber.
background of invention
As the saying goes: " seven points of glues, three points of spinning." quality of visible viscose quality and fiber product quality have larger impact, what play a decisive role to viscose quality is then control to yellow technique.The length of the cycle time of yellow, in yellowing processes, the control etc. of temperature is all the key issue determining viscose quality.
The viscose fiber yellow processing step of prior art is: after yellow reaction terminates; add successively in xanthating machine above xanthating machine once dissolve alkali, secondary dissolves alkali, dissolved water and carries out just dissolving; namely the viscose glue in obtained viscose staple fibre production; then discharging pump discharging is opened; material will add flushing alkali when will go out; material is closed bottom valve after rolling, is stopped making glue pump, stopping xanthate acid pulverizer, a now yellow end cycle.A yellow cycle required time is 110 minutes, and the whole yellow time in yellow cycle only needs about 50 minutes, and all the other times are more short better.
There is following shortcoming in the existing yellow discharging technology that adds water:
1, the xanthating machine production cycle is longer, and production capacity is lower;
2, during xanthating machine discharging discharging pump and pulverizer electric current high, energy consumption is high, and very easily trips, and causes yellow cycle stretch-out;
3, esterified degree is uneven, easily causes discharging pump stuck, equipment fluctuation of service.
As 200410084025.0, the patent of invention that name is called " a kind of for the yellow method in viscose fiber production ", disclose a kind of for the yellow method in viscose fiber production, its technical scheme is: soda cellulose and CS
2yellowing processes completed by dry xanthation and wet method yellow two step, namely soda cellulose first with CS
2carry out dry xanthation, and then in soda cellulose, add alkali lye carry out wet method yellow, until yellowing processes terminates.The mode that this patent adopts wet-dry change yellow to combine, viscose glue unites phenomenon obviously, and diameter of uniting can reach more than 1 meter, is unfavorable for follow-up dissolving and mills.
Summary of the invention
The present invention is directed to above-mentioned technical problem, provide the yellow system in the production of a kind of viscose fiber.Native system can add dissolved water to the discharge pipe of xanthating machine, effectively achieves and shortens the xanthating machine production cycle, improves xanthating machine production capacity, improves stable equipment operation, reduces equipment use electric current, reduces the object of energy consumption.
For achieving the above object, the present invention adopts following technical scheme:
Yellow system in a kind of viscose fiber production, comprise xanthating machine, discharge valve, discharge pipe, pulverizer, described xanthating machine, discharge pipe, pulverizer connect successively, be provided with discharge valve between xanthating machine and discharge pipe, it is characterized in that: described discharge pipe is connected with liquid-inlet pipe; After yellow reaction terminates, add in xanthating machine and dissolve alkali and a dissolved water, after finishing, open discharge valve, in discharge pipe, add secondary dissolved water by liquid-inlet pipe simultaneously, when discharging reaches more than 90%, in xanthating machine, add flushing alkali, rinse and completely namely close discharge valve, stop pulverizer.
Yellow system of the present invention by connecting liquid-inlet pipe on discharge pipe, dissolved water is added at twice, while discharging, in discharge pipe, add secondary dissolved water by liquid-inlet pipe, not only save the time added water, and, make water and cellulose sulfonate Homogeneous phase mixing in pulverizer, than the better effects if of the mixing that adds water in xanthating machine, the esterified degree of cellulose sulfonate is more even, avoid plugging, equipment runs more stable.On the other hand, because dissolved water adds through piping, the running current of pulverizer and discharging pump obviously declines; Directly can start the milling system of predissolve after the mixed viscose glue of pulverizer enters into predissolve machine, shorten the dissolving cycle, can also discharging time be shortened simultaneously, thus shorten the yellow cycle further.
Dissolving alkali of the present invention divides once dissolving alkali and secondary to dissolve alkali and successively adds, while adding secondary dissolving alkali, add a dissolved water.Adding the object of once dissolving alkali is that to start high-speed stirring load after adding alkali little, not easily trips, and adding the object that secondary dissolves alkali is that under xanthating machine high-speed stirring, mixing effect is better, and solute effect is better.
Preferably, after described once dissolving alkali finishes, xanthating machine raises speed to adding at a high speed secondary again in xanthating machine and dissolves alkali, and better mixed viscose and dissolving alkali, improve just solute effect.
Preferably, the mass ratio that described once dissolving alkali and secondary dissolve alkali is 1:3 ~ 1:1.
The mass ratio of a dissolved water of the present invention and secondary dissolved water is 1:4 ~ 2:3, mixing effectively during guarantee discharging.
The flow velocity of dissolving alkali of the present invention is 20 ~ 28L/s, ensures solute effect.
The flushing pressure of flushing alkali of the present invention is 0.2 ~ 0.6Mpa, ensures developing result.
The temperature of dissolving alkali of the present invention and dissolved water is 3 ~ 18 DEG C.
Beneficial effect of the present invention is:
1, yellow system of the present invention by connecting liquid-inlet pipe on discharge pipe, dissolved water is added at twice, while discharging, in discharge pipe, secondary dissolved water is added by liquid-inlet pipe, not only save the time added water, and, make water and cellulose sulfonate Homogeneous phase mixing in pulverizer, than the better effects if of the mixing that adds water in xanthating machine, the esterified degree of cellulose sulfonate is more even, can avoid uniting, unite diameter lower than 20 centimetres, avoid plugging, equipment runs more stable, is conducive to follow-up dissolving and milling work order simultaneously.
2, on the other hand, because dissolved water adds through piping, the running current of pulverizer and discharging pump obviously declines; Directly can start the milling system of predissolve after the mixed viscose glue of pulverizer enters into predissolve machine, eliminate follow-up mixed processes, shorten the dissolving cycle, can also discharging time be shortened simultaneously, thus shorten the yellow cycle further.
3, because yellow system energy efficient of the present invention, the esterified degree of product are high, the measured feature of matter, the interests brought to enterprise are considerable, the production capacity of every platform xanthating machine reaches 20,000 tons/platform/year, and production capacity improves 54%, saving power consumption 200,000 degree/year/platform, save power consumption 35%, the esterified degree of product reaches more than 50, under stay-in-grade prerequisite, has greatly saved cost.
4, the present invention is once being dissolved after alkali finishes, and xanthating machine speed-raising dissolves alkali to adding at a high speed secondary again in xanthating machine, restarts high-speed stirring load little, not easily trip after adding alkali, ensures that high-speed stirring can start smoothly; The object adding secondary alkali is better mixed viscose and dissolving alkali under xanthating machine high-speed stirring, improves just solute effect.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of viscose fiber production yellow system of the present invention.
Embodiment
Below in conjunction with embodiment, essentiality content of the present invention is described in further detail.
Embodiment 1
Yellow system in a kind of viscose fiber production, comprise xanthating machine, discharge valve, discharge pipe, pulverizer, described xanthating machine, discharge pipe, pulverizer connect successively, be provided with discharge valve between xanthating machine and discharge pipe, it is characterized in that: described discharge pipe is connected with liquid-inlet pipe; After yellow reaction terminates, add in xanthating machine and dissolve alkali and a dissolved water, after finishing, open discharge valve, in discharge pipe, add secondary dissolved water by liquid-inlet pipe simultaneously, when discharging reaches more than 90%, in xanthating machine, add flushing alkali, rinse and completely namely close discharge valve, stop pulverizer.
Embodiment 2
Yellow system in a kind of viscose fiber production, comprise xanthating machine, discharge valve, discharge pipe, pulverizer, described xanthating machine, discharge pipe, pulverizer connect successively, be provided with discharge valve between xanthating machine and discharge pipe, it is characterized in that: described discharge pipe is connected with liquid-inlet pipe; After yellow reaction terminates, add in xanthating machine and dissolve alkali and a dissolved water, after finishing, open discharge valve, in discharge pipe, add secondary dissolved water by liquid-inlet pipe simultaneously, when discharging reaches more than 90%, in xanthating machine, add flushing alkali, rinse and completely namely close discharge valve, stop pulverizer.
Described dissolving alkali divides once dissolving alkali and secondary to dissolve alkali and successively adds, while adding secondary dissolving alkali, add a dissolved water.
Embodiment 3
The embodiment of the present embodiment is substantially the same manner as Example 2, on this basis:
After described once dissolving alkali finishes, xanthating machine speed-raising dissolves alkali to adding at a high speed secondary again in xanthating machine.
Embodiment 4
The embodiment of the present embodiment is substantially the same manner as Example 2, on this basis:
After described once dissolving alkali finishes, xanthating machine speed-raising dissolves alkali to adding at a high speed secondary again in xanthating machine.
The mass ratio that described once dissolving alkali and secondary dissolve alkali is 1:3.
Embodiment 5
The embodiment of the present embodiment is substantially the same manner as Example 2, on this basis:
After described once dissolving alkali finishes, xanthating machine speed-raising dissolves alkali to adding at a high speed secondary again in xanthating machine.
The mass ratio that described once dissolving alkali and secondary dissolve alkali is 1:1.
A described dissolved water and the mass ratio of secondary dissolved water are 1:4.
Embodiment 6
The embodiment of the present embodiment is substantially the same manner as Example 2, on this basis:
After described once dissolving alkali finishes, xanthating machine speed-raising dissolves alkali to adding at a high speed secondary again in xanthating machine.
The mass ratio that described once dissolving alkali and secondary dissolve alkali is 1:2.
A described dissolved water and the mass ratio of secondary dissolved water are 2:3.
The flow velocity of described dissolving alkali is 28L/s.
Embodiment 7
The embodiment of the present embodiment is substantially the same manner as Example 2, on this basis:
After described once dissolving alkali finishes, xanthating machine speed-raising dissolves alkali to adding at a high speed secondary again in xanthating machine.
The mass ratio that described once dissolving alkali and secondary dissolve alkali is 1:1.5.
A described dissolved water and the mass ratio of secondary dissolved water are 1:2.
The flow velocity of described dissolving alkali is 20L/s.
The flushing pressure of described flushing alkali is 0.2Mpa.
Embodiment 8
The embodiment of the present embodiment is substantially the same manner as Example 2, on this basis:
After described once dissolving alkali finishes, xanthating machine speed-raising dissolves alkali to adding at a high speed secondary again in xanthating machine.
The mass ratio that described once dissolving alkali and secondary dissolve alkali is 1:2.5.
A described dissolved water and the mass ratio of secondary dissolved water are 1:3.
The flow velocity of described dissolving alkali is 25L/s.
The flushing pressure of described flushing alkali is 0.6Mpa.
The temperature of described dissolving alkali and dissolved water is 3 DEG C.
Embodiment 9
The embodiment of the present embodiment is substantially the same manner as Example 2, on this basis:
After described once dissolving alkali finishes, xanthating machine speed-raising dissolves alkali to adding at a high speed secondary again in xanthating machine.
The mass ratio that described once dissolving alkali and secondary dissolve alkali is 1:1.8.
A described dissolved water and the mass ratio of secondary dissolved water are 1:2.5.
The flow velocity of described dissolving alkali is 22L/s.
The flushing pressure of described flushing alkali is 0.3Mpa.
The temperature of described dissolving alkali and dissolved water is 18 DEG C.
Embodiment 10
The embodiment of the present embodiment is substantially the same manner as Example 2, on this basis:
After described once dissolving alkali finishes, xanthating machine speed-raising dissolves alkali to adding at a high speed secondary again in xanthating machine.
The mass ratio that described once dissolving alkali and secondary dissolve alkali is 1:2.8.
A described dissolved water and the mass ratio of secondary dissolved water are 1:3.5.
The flow velocity of described dissolving alkali is 26L/s.
The flushing pressure of described flushing alkali is 0.4Mpa.
The temperature of described dissolving alkali and dissolved water is 10 DEG C.
Embodiment 11
The embodiment of the present embodiment is substantially the same manner as Example 2, on this basis:
After described once dissolving alkali finishes, xanthating machine speed-raising dissolves alkali to adding at a high speed secondary again in xanthating machine.
The mass ratio that described once dissolving alkali and secondary dissolve alkali is 1:2.6.
A described dissolved water and the mass ratio of secondary dissolved water are 1:2.2.
The flow velocity of described dissolving alkali is 24L/s.
The flushing pressure of described flushing alkali is 0.5Mpa.
The temperature of described dissolving alkali and dissolved water is 15 DEG C.
Claims (8)
1. the yellow technique in a viscose fiber production, comprise xanthating machine, discharge valve, discharge pipe, pulverizer, described xanthating machine, discharge pipe, pulverizer connect successively, be provided with discharge valve between xanthating machine and discharge pipe, it is characterized in that: described discharge pipe is connected with liquid-inlet pipe; After yellow reaction terminates, add in xanthating machine and dissolve alkali and a dissolved water, after finishing, open discharge valve, in discharge pipe, add secondary dissolved water by liquid-inlet pipe simultaneously, when discharging reaches more than 90%, in xanthating machine, add flushing alkali, rinse and completely namely close discharge valve, stop pulverizer.
2. the yellow technique in a kind of viscose fiber production according to claim 1, is characterized in that: described dissolving alkali divides once dissolving alkali and secondary to dissolve alkali and successively adds, while adding secondary dissolving alkali, adds a dissolved water.
3. the yellow technique in a kind of viscose fiber production according to claim 2, it is characterized in that: after described once dissolving alkali finishes, xanthating machine speed-raising dissolves alkali to adding at a high speed secondary again in xanthating machine.
4. the yellow technique in a kind of viscose fiber production according to claim 2, is characterized in that: the mass ratio that described once dissolving alkali and secondary dissolve alkali is 1:3 ~ 1:1.
5. the yellow technique in a kind of viscose fiber production according to claim 1, is characterized in that: a described dissolved water and the mass ratio of secondary dissolved water are 1:4 ~ 2:3.
6. the yellow technique in a kind of viscose fiber production according to claim 1, is characterized in that: the flow velocity of described dissolving alkali is 20 ~ 28L/s.
7. the yellow technique in a kind of viscose fiber production according to claim 1, is characterized in that: the flushing pressure of described flushing alkali is 0.2 ~ 0.6Mpa.
8. the yellow technique in a kind of viscose fiber production according to claim 1, is characterized in that: the temperature of described dissolving alkali and dissolved water is 3 ~ 18 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410247271.7A CN104004102B (en) | 2014-06-06 | 2014-06-06 | Yellow system in a kind of viscose fiber production |
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| CN201410247271.7A CN104004102B (en) | 2014-06-06 | 2014-06-06 | Yellow system in a kind of viscose fiber production |
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| CN104004102A CN104004102A (en) | 2014-08-27 |
| CN104004102B true CN104004102B (en) | 2016-02-10 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105418771A (en) * | 2015-12-11 | 2016-03-23 | 宜宾海丝特纤维有限责任公司 | State feedback system of xanthating machine locator |
| CN108250305B (en) * | 2018-02-12 | 2020-12-04 | 赛得利（福建）纤维有限公司 | Yellowing subsequent process capable of improving viscose preparation productivity |
| CN112083743B (en) * | 2020-09-07 | 2021-07-09 | 赛得利(江苏)纤维有限公司 | A etiolation temperature regulating system for viscose fiber production |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1618816A (en) * | 2004-10-18 | 2005-05-25 | 保定天鹅股份有限公司 | Xanthating method used in viscous fiber production |
| CN1986571A (en) * | 2006-10-24 | 2007-06-27 | 唐山三友集团化纤有限公司 | Technological process of controlling yellowing of short viscose fiber by means of recipe program |
| CN102393694A (en) * | 2011-09-27 | 2012-03-28 | 宜宾海丝特纤维有限责任公司 | Yellowing automatic control system in production of short fiber stock solution viscose |
| CN203960098U (en) * | 2014-06-06 | 2014-11-26 | 成都丽雅纤维股份有限公司 | The yellow system that viscose fiber is produced |
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2014
- 2014-06-06 CN CN201410247271.7A patent/CN104004102B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1618816A (en) * | 2004-10-18 | 2005-05-25 | 保定天鹅股份有限公司 | Xanthating method used in viscous fiber production |
| CN1986571A (en) * | 2006-10-24 | 2007-06-27 | 唐山三友集团化纤有限公司 | Technological process of controlling yellowing of short viscose fiber by means of recipe program |
| CN102393694A (en) * | 2011-09-27 | 2012-03-28 | 宜宾海丝特纤维有限责任公司 | Yellowing automatic control system in production of short fiber stock solution viscose |
| CN203960098U (en) * | 2014-06-06 | 2014-11-26 | 成都丽雅纤维股份有限公司 | The yellow system that viscose fiber is produced |
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