CN102101890A - Post dissolution process of viscose - Google Patents
Post dissolution process of viscose Download PDFInfo
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- CN102101890A CN102101890A CN 201010609129 CN201010609129A CN102101890A CN 102101890 A CN102101890 A CN 102101890A CN 201010609129 CN201010609129 CN 201010609129 CN 201010609129 A CN201010609129 A CN 201010609129A CN 102101890 A CN102101890 A CN 102101890A
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- viscose
- viscose glue
- grinding
- dissolution process
- temperature
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Abstract
The invention relates to a post dissolution process of viscose. The invention aims to solve the problem that the enlarging improvement on a single post dissolution machine cannot improve grinding capacity and the problem that the viscose glue temperature cannot be controlled to be in a process range in the prior art, and provides a post dissolution process of viscose, which can improve grinding capacity and effectively control the viscose glue temperature. In the invention, the dissolution and grinding conditions of the viscose glue are improved through process improvement and circulating grinding, the quality, particularly filtering performance, of the viscose glue is improved greatly, the installation of heat exchange equipment makes it possible to control viscose glue temperature effectively, ensures the post dissolution temperature can reach process requirements accurately and ensues the post dissolution effect, and thus, the overall quality of the viscose glue is improved.
Description
Technical field
The present invention relates to a kind of production technique of viscose fiber, more particularly, the present invention relates to a kind of back dissolution process of viscose fiber.
Background technology
Back dissolution process is positioned at the latter half of whole stoste adhesive-preparing technology, and previous operation is the yellow operation, and a back operation is the maturation operation.By back dissolving with the Mierocrystalline cellulose yellow acid fat that the yellow operation makes grind, uniform dissolution in alkali lye, obtain dissolving evenly, temperature, the stable viscose glue of degree of ripeness.Deliver to down operation by toothed gear pump.
The old operational path of dissolution process is behind the viscose fiber: the xanthating machine viscose glue enters the predissolve bucket through the discharging of R217 toothed gear pump through W2150 rough grinding pump, enters the blender(viscose) dissolving by the discharging of R217 toothed gear pump through the smooth grinding pump again.Blender(viscose) has inside and outside salt water jacket, is used for viscose glue temperature controlling (about 20 degrees centigrade), and blender(viscose) has the grinding function, viscose glue under the promotion of stirring blade in machine flow-ground, the dissolving.The next procedure maturation is sent in discharging when reaching processing requirement.
Back dissolution process production capacity is 42000 tons of pulp/years, can requirement back dissolving production capacity need be improved owing to expand, by the increasing transformation to the blender(viscose) unit, but fail to solve the problem of viscose glue temperature and grinding: this type (R224 type) blender(viscose) useful volume is 8.5 m
3, transforms the back volume and improve, but the salt water jacket does not have corresponding increase, so the viscose glue temperature can not be controlled in the processing range (about 20 degrees centigrade); Mill capacity does not have corresponding raising, and grinding effect is poor.
Summary of the invention
The present invention is intended to solve in the prior art increasing transformation to the blender(viscose) unit and can not improves mill capacity and viscose glue temperature and can not be controlled at problem in the processing range, a kind of enhancing mill capacity is provided, effectively controls the back dissolution process of the viscose fiber of viscose glue temperature.
In order to realize the foregoing invention purpose, concrete technical scheme of the present invention is as follows:
A kind of back dissolution process of viscose fiber is characterized in that: comprise following processing step:
A, the yellow of process xanthating machine make soda cellulose and CS
2Reaction generates the Mierocrystalline cellulose yellow acid fat that is dissolvable in water in the sig water, and the yellow discharging is ground through the rough grinding pump, and charging in the predissolve machine is carried out predissolve and obtained viscose glue uniformly;
The viscose glue that obtains after B, the predissolve successively through after being transported to two road rough grinding pumps, is regulated brine flow control viscose glue temperature automatically through plate-type heat exchanger, enters blender(viscose);
C, enter blender(viscose) after, grind through being transported to W108 smooth grinding pump again, 2-5 discharging afterwards of circulation is transported to tempering tank.
Abrasive disk space at the rough grinding pump described in the steps A is 1-4mm, and grinding temperature is 20-30 ℃.
In the predissolve described in the steps A is to open to stir when being fed to the 4-8% material level, turns over glue and grind when being fed to 50-70%.
Carry for adopting the R218 toothed gear pump in the conveying described in the step B.
Abrasive disk space at two road rough grinding pumps described in the step B is 1-4mm, and grinding temperature is 20-30 ℃.
In the control of the plate-type heat exchanger described in step B viscose glue temperature is 15-25 ℃.
Carry for adopting the R217 toothed gear pump in the conveying described in the step C.
The effect of rough grinding pump is with the first dissolved agglomerate viscose glue of xanthating machine, is transported to the rough grinding pump that runs up through toothed gear pump the viscose glue particle is pulverized.
The useful technique effect that the present invention brings:
By innovation to back dissolution system technical process, improved the dissolving polishing progress of viscose glue, quality to viscose glue, the strainability that mainly is viscose glue is greatly improved, back dissolving after the improvement can greatly reduce the viscose glue group in the viscose glue, improve the strainability of viscose glue, tear the ride number open with this filter that reduces maturation workshop section, reach and reduce the purpose that consumes, installation by heat-exchange equipment simultaneously can control effectively to the viscose glue temperature more effectively, guarantee that back dissolved temperature can reach processing requirement accurately, guarantee back dissolved effect, thereby improve the viscose glue total quality.
Description of drawings
Figure of description is a process flow sheet of the present invention.
Embodiment
Embodiment 1
A, the yellow of process xanthating machine make soda cellulose and CS
2Reaction generates the Mierocrystalline cellulose yellow acid fat that is dissolvable in water in the sig water, and the yellow discharging is ground through the rough grinding pump, and charging in the predissolve machine is carried out predissolve and obtained viscose glue uniformly; The abrasive disk space of described rough grinding pump is 1mm, and grinding temperature is 20 ℃; Described predissolve is open to stir when being fed to 4% material level, grinds being fed at 50% o'clock and turning over glue;
The viscose glue that obtains after B, the predissolve successively through behind conveying of R218 toothed gear pump and the two road rough grinding pumps, is regulated brine flow control viscose glue temperature automatically through plate-type heat exchanger, enters blender(viscose); The abrasive disk space of described two road rough grinding pumps is 1mm, and grinding temperature is 20 ℃; Described plate-type heat exchanger control viscose glue temperature is 15 ℃;
C, enter blender(viscose) after, carry with W108 smooth grinding pump through the R217 toothed gear pump again and grind, discharging is transported to tempering tank behind the circular grinding 2 times.
Embodiment 2
A, the yellow of process xanthating machine make soda cellulose and CS
2Reaction generates the Mierocrystalline cellulose yellow acid fat that is dissolvable in water in the sig water, and the yellow discharging is ground through the rough grinding pump, and charging in the predissolve machine is carried out predissolve and obtained viscose glue uniformly; The abrasive disk space of described rough grinding pump is 4mm, and grinding temperature is 30 ℃; Described predissolve is open to stir when being fed to 8% material level, grinds being fed at 70% o'clock and turning over glue;
The viscose glue that obtains after B, the predissolve successively through behind conveying of R218 toothed gear pump and the two road rough grinding pumps, is regulated brine flow control viscose glue temperature automatically through plate-type heat exchanger, enters blender(viscose); The abrasive disk space of described two road rough grinding pumps is 4mm, and grinding temperature is 30 ℃; Described plate-type heat exchanger control viscose glue temperature is 25 ℃;
C, enter blender(viscose) after, carry with W108 smooth grinding pump through the R217 toothed gear pump again and grind, discharging is transported to tempering tank behind the circular grinding 5 times.
Embodiment 3
A, the yellow of process xanthating machine make soda cellulose and CS
2Reaction generates the Mierocrystalline cellulose yellow acid fat that is dissolvable in water in the sig water, and the yellow discharging is ground through the rough grinding pump, and charging in the predissolve machine is carried out predissolve and obtained viscose glue uniformly; The abrasive disk space of described rough grinding pump is 2mm, and grinding temperature is 25 ℃; Described predissolve is open to stir when being fed to 6% material level, grinds being fed at 60% o'clock and turning over glue;
The viscose glue that obtains after B, the predissolve successively through behind conveying of R218 toothed gear pump and the two road rough grinding pumps, is regulated brine flow control viscose glue temperature automatically through plate-type heat exchanger, enters blender(viscose); The abrasive disk space of described two road rough grinding pumps is 2mm, and grinding temperature is 25 ℃; Described plate-type heat exchanger control viscose glue temperature is 20 ℃;
C, enter blender(viscose) after, carry with W108 smooth grinding pump through the R217 toothed gear pump again and grind, discharging is transported to tempering tank behind the circular grinding 3 times.
Embodiment 4
A, the yellow of process xanthating machine make soda cellulose and CS
2Reaction generates the Mierocrystalline cellulose yellow acid fat that is dissolvable in water in the sig water, and the yellow discharging is ground through the rough grinding pump, and charging in the predissolve machine is carried out predissolve and obtained viscose glue uniformly; The abrasive disk space of described rough grinding pump is 3mm, and grinding temperature is 27 ℃; Described predissolve is open to stir when being fed to 7% material level, grinds being fed at 55% o'clock and turning over glue;
The viscose glue that obtains after B, the predissolve successively through behind conveying of R218 toothed gear pump and the two road rough grinding pumps, is regulated brine flow control viscose glue temperature automatically through plate-type heat exchanger, enters blender(viscose); The abrasive disk space of described two road rough grinding pumps is 3mm, and grinding temperature is 25 ℃; Described plate-type heat exchanger control viscose glue temperature is 20 ℃;
C, enter blender(viscose) after, carry with W108 smooth grinding pump through the R217 toothed gear pump again and grind, discharging is transported to tempering tank behind the circular grinding 4 times.
Embodiment 5
By the circular grinding of W108 pump, can effectively reduce the viscose glue population, improve the viscose filtration performance; The average 60-65 of viscose filtration value before transforming transforms after-filtration value 75-80, and wood, bamboo pulp blend proportion also is much improved, and before two maturation sheet frame filters are torn the total platform number of car open and transformed average 98/day, transforms average 60/day of back; Viscose glue population 35000-40000 before transforming reduces to 20000-25000 after the transformation; The cost aspect can shorten the viscose glue dissolution time, reduces the viscose glue power consumption cost, and square glue power consumption can reduce by 1/3.
Claims (7)
1. the back dissolution process of a viscose fiber is characterized in that: comprise following processing step:
A, yellow discharging are ground through the rough grinding pump, and charging in the predissolve machine is carried out predissolve and obtained uniform viscose glue;
The viscose glue that obtains after B, the predissolve successively through after being transported to two road rough grinding pumps, is regulated brine flow control viscose glue temperature automatically through plate-type heat exchanger, enters blender(viscose);
C, enter blender(viscose) after, grind through being transported to W108 smooth grinding pump again, 2-5 discharging afterwards of circulation is transported to tempering tank.
2. the back dissolution process of a kind of viscose fiber according to claim 1, it is characterized in that: the abrasive disk space at the rough grinding pump described in the steps A is 1-4mm, and grinding temperature is 20-30 ℃.
3. the back dissolution process of a kind of viscose fiber according to claim 1 is characterized in that: in the predissolve described in the steps A is to open to stir when being fed to the 4-8% material level, turns over glue and grind when being fed to 50-70%.
4. the back dissolution process of a kind of viscose fiber according to claim 1 is characterized in that: carry for adopting the R218 toothed gear pump in the conveying described in the step B.
5. the back dissolution process of a kind of viscose fiber according to claim 1, it is characterized in that: the abrasive disk space at two road rough grinding pumps described in the step B is 1-4mm, and grinding temperature is 20-30 ℃.
6. the back dissolution process of a kind of viscose fiber according to claim 1 is characterized in that: in the control of the plate-type heat exchanger described in step B viscose glue temperature is 15-25 ℃.
7. the back dissolution process of a kind of viscose fiber according to claim 1 is characterized in that: carry for adopting the R217 toothed gear pump in the conveying described in the step C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010609129 CN102101890A (en) | 2010-12-28 | 2010-12-28 | Post dissolution process of viscose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010609129 CN102101890A (en) | 2010-12-28 | 2010-12-28 | Post dissolution process of viscose |
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| CN102101890A true CN102101890A (en) | 2011-06-22 |
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| CN 201010609129 Pending CN102101890A (en) | 2010-12-28 | 2010-12-28 | Post dissolution process of viscose |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104479030A (en) * | 2014-12-09 | 2015-04-01 | 成都丽雅纤维股份有限公司 | Xanthating machine |
| CN105367668A (en) * | 2015-11-25 | 2016-03-02 | 宜宾丝丽雅股份有限公司 | Dissolving process for preparing viscose |
| CN106400131A (en) * | 2016-11-28 | 2017-02-15 | 宜宾海丝特纤维有限责任公司 | Processing system for decreasing viscose particle number in spinning technology |
| CN108250305A (en) * | 2018-02-12 | 2018-07-06 | 赛得利（福建）纤维有限公司 | A kind of yellow subsequent process that can be improved viscose glue and prepare production capacity |
| CN111636108A (en) * | 2020-06-08 | 2020-09-08 | 宜宾丝丽雅股份有限公司 | Titanium white liquid blending method for viscose fiber production |
| CN112111792A (en) * | 2020-09-03 | 2020-12-22 | 赛得利(江苏)纤维有限公司 | Automatic control system for viscose temperature |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0388706A (en) * | 1989-08-31 | 1991-04-15 | Hitachi Chem Co Ltd | Production of carbon material |
| CN1337479A (en) * | 2000-08-05 | 2002-02-27 | 吉林化纤集团高科技开发有限公司 | Unioresistant viscose fibre producing process |
| CN1399011A (en) * | 2002-08-13 | 2003-02-26 | 河北吉藁化纤有限责任公司 | Bamboo viscose fiber and its production process |
| CN101104959A (en) * | 2007-06-14 | 2008-01-16 | 山东海龙股份有限公司 | Method for preparing viscose fiber |
| CN101503833A (en) * | 2009-03-06 | 2009-08-12 | 黄志鹏 | Method of preparing bamboo viscose fiber |
-
2010
- 2010-12-28 CN CN 201010609129 patent/CN102101890A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0388706A (en) * | 1989-08-31 | 1991-04-15 | Hitachi Chem Co Ltd | Production of carbon material |
| CN1337479A (en) * | 2000-08-05 | 2002-02-27 | 吉林化纤集团高科技开发有限公司 | Unioresistant viscose fibre producing process |
| CN1399011A (en) * | 2002-08-13 | 2003-02-26 | 河北吉藁化纤有限责任公司 | Bamboo viscose fiber and its production process |
| CN101104959A (en) * | 2007-06-14 | 2008-01-16 | 山东海龙股份有限公司 | Method for preparing viscose fiber |
| CN101503833A (en) * | 2009-03-06 | 2009-08-12 | 黄志鹏 | Method of preparing bamboo viscose fiber |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104479030A (en) * | 2014-12-09 | 2015-04-01 | 成都丽雅纤维股份有限公司 | Xanthating machine |
| CN105367668A (en) * | 2015-11-25 | 2016-03-02 | 宜宾丝丽雅股份有限公司 | Dissolving process for preparing viscose |
| CN106400131A (en) * | 2016-11-28 | 2017-02-15 | 宜宾海丝特纤维有限责任公司 | Processing system for decreasing viscose particle number in spinning technology |
| CN106400131B (en) * | 2016-11-28 | 2018-07-20 | 宜宾海丝特纤维有限责任公司 | A kind of processing system reducing viscose glue population suitable for spinning technique |
| CN108250305A (en) * | 2018-02-12 | 2018-07-06 | 赛得利（福建）纤维有限公司 | A kind of yellow subsequent process that can be improved viscose glue and prepare production capacity |
| CN111636108A (en) * | 2020-06-08 | 2020-09-08 | 宜宾丝丽雅股份有限公司 | Titanium white liquid blending method for viscose fiber production |
| CN112111792A (en) * | 2020-09-03 | 2020-12-22 | 赛得利(江苏)纤维有限公司 | Automatic control system for viscose temperature |
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Application publication date: 20110622 |