CN202830261U - Circulating flow-stabilizing device for polyacrylonitrile strand coagulating bath - Google Patents
Circulating flow-stabilizing device for polyacrylonitrile strand coagulating bath Download PDFInfo
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- CN202830261U CN202830261U CN 201220366067 CN201220366067U CN202830261U CN 202830261 U CN202830261 U CN 202830261U CN 201220366067 CN201220366067 CN 201220366067 CN 201220366067 U CN201220366067 U CN 201220366067U CN 202830261 U CN202830261 U CN 202830261U
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- coagulating
- coagulating bath
- circulating
- liquid
- bubbles
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Abstract
The utility model discloses a circulating flow-stabilizing device for a polyacrylonitrile strand coagulating bath. The device is designed for reducing the fluctuation of coagulating liquid in a circulating device and the influence of bubbles in the coagulating liquid on nascent fibers. The device is arranged at the front end of a coagulating bath groove, and separated by a hole plate; a vent hole with a valve is formed at the top end of the device; a coagulating bath circulating inlet is formed at the bottom end of the device; and a longitudinal division plate with an opening at bottom is arranged in the device. In an operating process, the coagulating liquid inflows from the coagulating bath circulating inlet, and flows back so as to achieve buffering after being contacted with a top plate; the bubbles carried in the coagulating liquid are obstructed at the top of the device; then, the coagulating liquid slowly flows through the opening at the bottom of the longitudinal division plate, and stably flows into the coagulating bath groove after being shunted by the hole plate; the surface of a liquid level of the coagulating bath groove does not fluctuate; and fiber tows operate stably. According to the circulating flow-stabilizing device, the circulating coagulating liquid is prevented from being contacted with the nascent fibers directly; a strand breakage rate is reduced effectively; and no bubbles are generated in the coagulating bath groove by the regular venting of the vent hole.
Description
Technical field
The utility model relates to a kind of polyacrylonitrile fibril coagulating bath circulation constant-current stabilizer, belongs to technical field.
Background technology
Polyacrylonitrile-based carbon fibre is with its excellent performance, is widely used in national defence and the field such as civilian.The performance of carbon fiber depends primarily on the quality of precursor, and in the wet spinning process, acrylonitrile polymerization liquid directly enters in the coagulating bath with uniform temperature and dimethyl sulfoxide (DMSO) (DMSO) concentration by spinning head, and fibroblast is separated.The quality that forms as-spun fibre in the coagulating bath directly has influence on other operation of spinning, and then affects former yarn quality.At present, coagulating bath has with it supporting solidification liquid circulating device, in coagulating tank, the flow direction of solidification liquid is identical with the traffic direction of fibre bundle, except temperature and two key process parameters of DMSO concentration, the flow regime of solidification liquid also is one of key factor that affects acrylonitrile polymerization liquid fibroblast.As-spun fibre is more tender and lovely, if be subject to the resistance that solidification liquid flows in the process of setting, will strengthen the fracture of wire probability, and therefore in coagulating bath, solidification liquid flows should be steady as far as possible, and any turbulent flow and fluctuation can not be arranged, simultaneously more can not entrained air bubbles in the solidification liquid.
Summary of the invention
The purpose of this utility model is to provide a kind of polyacrylonitrile fibril coagulating bath circulation constant-current stabilizer, and it can solve the fluctuation problem of solidification liquid in the circulating device, reduces circulation solidification liquid bubble to the impact of as-spun fibre.
Concrete technical scheme of the present utility model is as follows:
This circulation constant-current stabilizer is located at the coagulating tank front end, is separated by with orifice plate; Circulation constant-current stabilizer top is provided with the steam vent with valve, and the bottom is provided with the coagulating bath loop head; Be provided with the longitudinal baffle of bottom opening in the circulation constant-current stabilizer.
Description of drawings
Fig. 1 is polyacrylonitrile fibril coagulating bath circulation constant-current stabilizer schematic diagram.
Fig. 2 is polyacrylonitrile fibril coagulating bath circulation constant-current stabilizer top view.
The specific embodiment
With reference to Fig. 1 and 2 embodiment of the present utility model is further specified:
Embodiment:
Polyacrylonitrile fibril coagulating bath circulation constant-current stabilizer comprises coagulating tank 1, orifice plate 2, longitudinal baffle 3, coagulating bath loop head 4, circulation constant-current stabilizer 5 and steam vent 6 etc.;
Circulation constant-current stabilizer 5 is located at coagulating tank 1 front end, is separated by with orifice plate 2; Circulation constant-current stabilizer 5 tops are provided with the steam vent 6 with valve, and the bottom is provided with coagulating bath loop head 4; Be provided with the longitudinal baffle 3 of bottom opening in the circulation constant-current stabilizer 5.
After coagulating tank 1 front end installs circulation constant-current stabilizer 5 additional, close steam vent 6, the start operation.Solidification liquid vertically upward flows into from the coagulating bath loop head 4 of bottom of device, and contacting turns back behind the top board refluxes and obtain buffering, simultaneously the bubble of carrying secretly in the solidification liquid is intercepted at the device top.Then, the circulation solidification liquid slowly flows through longitudinal baffle 3 bottom openings with the advection state, through orifice plate 2 shuntings, flows into reposefully coagulating tank 1 again, makes the 9 surperficial ripple disables of coagulating tank liquid level, and fibre bundle 8 operates steadily.The circulation constant-current stabilizer solidification liquid of avoiding circulating directly contacts as-spun fibre, effectively reduces wire broken rate, can pass through steam vent 6 regular exhausts, makes in the coagulating tank 1 without Bubble formation.
Claims (1)
1. polyacrylonitrile fibril coagulating bath circulation constant-current stabilizer is characterized in that:
Circulation constant-current stabilizer (5) is located at coagulating tank (1) front end, is separated by with orifice plate (2); Circulation constant-current stabilizer (5) top is provided with the steam vent (6) with valve, and the bottom is provided with coagulating bath loop head (4); Be provided with the longitudinal baffle (3) of bottom opening in the circulation constant-current stabilizer (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220366067 CN202830261U (en) | 2012-07-26 | 2012-07-26 | Circulating flow-stabilizing device for polyacrylonitrile strand coagulating bath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220366067 CN202830261U (en) | 2012-07-26 | 2012-07-26 | Circulating flow-stabilizing device for polyacrylonitrile strand coagulating bath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202830261U true CN202830261U (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220366067 Expired - Fee Related CN202830261U (en) | 2012-07-26 | 2012-07-26 | Circulating flow-stabilizing device for polyacrylonitrile strand coagulating bath |
Country Status (1)
| Country | Link |
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| CN (1) | CN202830261U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104451914A (en) * | 2014-12-09 | 2015-03-25 | 成都丽雅纤维股份有限公司 | Acid feeder for viscose fiber spinning machine |
| CN105597580A (en) * | 2014-10-27 | 2016-05-25 | 中国石油化工股份有限公司 | Solidification liquid preparation apparatus, solidification liquid preparation method, and applications of solidification liquid preparation apparatus |
| CN110129902A (en) * | 2019-05-20 | 2019-08-16 | 中国科学院山西煤炭化学研究所 | Polyacrylonitrile fibre and coagulation forming method, polyacrylonitrile-based carbon fibre and preparation method |
| CN112746341A (en) * | 2020-12-30 | 2021-05-04 | 江苏关怀医疗科技有限公司 | Spinning line gel tank with internal circulation pipeline |
| CN112877799A (en) * | 2020-12-31 | 2021-06-01 | 荣成碳纤维科技有限公司 | Method and system for producing carbon fiber dry-jet wet-spun precursor |
-
2012
- 2012-07-26 CN CN 201220366067 patent/CN202830261U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105597580A (en) * | 2014-10-27 | 2016-05-25 | 中国石油化工股份有限公司 | Solidification liquid preparation apparatus, solidification liquid preparation method, and applications of solidification liquid preparation apparatus |
| CN105597580B (en) * | 2014-10-27 | 2018-04-06 | 中国石油化工股份有限公司 | The device for formulating and compound method of solidification liquid and application |
| CN104451914A (en) * | 2014-12-09 | 2015-03-25 | 成都丽雅纤维股份有限公司 | Acid feeder for viscose fiber spinning machine |
| CN110129902A (en) * | 2019-05-20 | 2019-08-16 | 中国科学院山西煤炭化学研究所 | Polyacrylonitrile fibre and coagulation forming method, polyacrylonitrile-based carbon fibre and preparation method |
| CN112746341A (en) * | 2020-12-30 | 2021-05-04 | 江苏关怀医疗科技有限公司 | Spinning line gel tank with internal circulation pipeline |
| CN112877799A (en) * | 2020-12-31 | 2021-06-01 | 荣成碳纤维科技有限公司 | Method and system for producing carbon fiber dry-jet wet-spun precursor |
| CN112877799B (en) * | 2020-12-31 | 2022-03-11 | 荣成碳纤维科技有限公司 | Method and system for producing carbon fiber dry-jet wet-spun precursor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20210726 |