CN105002575A - Spinneret plate cleaning method - Google Patents
Spinneret plate cleaning method Download PDFInfo
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- CN105002575A CN105002575A CN201510513118.9A CN201510513118A CN105002575A CN 105002575 A CN105002575 A CN 105002575A CN 201510513118 A CN201510513118 A CN 201510513118A CN 105002575 A CN105002575 A CN 105002575A
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- spinneret plate
- spinnerets
- hour
- cleaning method
- compressed air
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Abstract
The invention relates to a spinneret plate cleaning method and belongs to the field of preparations of high-polymer materials. The cleaning method is characterized by comprising steps as follows: step one, a spinneret is disintegrated, a spinneret plate is soaked with water, material blocks on the surface are removed after being solidified, and then the spinneret plate is blown to be dry by dry compressed air; step two, the spinneret plate is subjected to ultrasonic treatment for one hour in pure water, and substances attached to the surface of the spinneret plate are removed; step three, the spinneret plate is soaked in a sodium hydroxide water solution with the mass concentration being 1%-20% and the temperature of 60 DEG C for 24 hours, so that polyacrylonitrile is hydrolyzed, then ultrasonic treatment is performed for one hour, and the spinneret plate is washed with pure water for one hour and then blown to be dry by the dry compressed air; step four, the cleaning condition of the spinneret plate is detected; step five, if the spinneret plate is detected to be unqualified, the third step can be repeated until the detection is qualified.
Description
Technical field
The present invention relates to a kind of preparation field of macromolecular material, specifically a kind of cleaning method of polyacrylonitrile base carbon fiber precursors spinning spinneret plate.
Background technology
As everyone knows, polyacrylonitrile fibril serves decisive action in carbon fiber preparation process, and the quality of spinnerets has directly had influence on the state of spinning, and the service life of spinnerets is also one of problem of being concerned about of each producer in addition.
Spinnerets needs cleaning after use, and cleaning requirement removes the material block of board falling face and endoporus, otherwise can have influence on spinning; Also to accomplish not injure spinnerets as far as possible, otherwise the service life of spinnerets can be had influence on, how spinnerets well be carried out the problem of cleaning and little injury spinnerets is a needs solution as far as possible.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of cleaning method of spinnerets, the flow process that spinnerets is cleaned is more simple, convenient, and reduces the damage to spinnerets.
The technical solution adopted for the present invention to solve the technical problems is: a kind of cleaning method of spinnerets, it is characterized in that comprising the steps: the first step, disintegrated by spinning head, spinnerets is soaked in water, solidify the rear material block removing surface, and dry up with dry compressed air; Second step, carries out ultrasonic process 1 hour in pure water, removes the material being attached on surface; 3rd step, soaks 24 hours, polyacrylonitrile is hydrolyzed, then ultrasonic process 1 hour in the aqueous solution of mass concentration 1% ~ 20%, temperature 60 C NaOH, dries up after 1 hour by pure water rinsing with dry compressed air; 4th step, detects the cleaning situation of spinnerets; 5th step, if detect defective repeat the 3rd step until detect qualified.
The invention has the beneficial effects as follows, the flow process that spinnerets is cleaned is more simple, convenient, and reduces the damage to spinnerets.
Detailed description of the invention
Below by embodiment, the present invention is further described.
Step of the present invention is as follows:
The first step, disintegrated by spinning head, spinnerets is soaked in water, and solidifies the rear material block removing surface, and dries up with dry compressed air;
Second step, carries out ultrasonic process 1 hour in pure water, removes the material being attached on surface;
3rd step, soaks 24 hours, polyacrylonitrile is hydrolyzed, then ultrasonic process 1 hour in the aqueous solution of mass concentration 1% ~ 20%, temperature 60 C NaOH, dries up after 1 hour by pure water rinsing with dry compressed air;
4th step, detects the cleaning situation of spinnerets;
5th step, if detect defective repeat the 3rd step until detect qualified.
Embodiment 1
According to the method described in the present invention spinnerets is cleaned.
Comparative example 1
In the present invention, the NaOH of the 3rd step is replaced by alcohols material (as ethylene glycol, triethylene glycol etc.) and cleans spinnerets.
Comparative example 2
Method of calcination is adopted to clean spinnerets in 3rd step in the present invention.
Comparative example 3
The method of ultrasonic process is adopted to clean spinnerets in 3rd step in the present invention.
The contrast of the different cleaning method of table 1
Claims (1)
1. a cleaning method for spinnerets, is characterized in that comprising the steps: the first step, and disintegrated by spinning head, spinnerets is soaked in water, and solidifies the rear material block removing surface, and dries up with dry compressed air; Second step, carries out ultrasonic process 1 hour in pure water, removes the material being attached on surface; 3rd step, soaks 24 hours, polyacrylonitrile is hydrolyzed, then ultrasonic process 1 hour in the aqueous solution of mass concentration 1% ~ 20%, temperature 60 C NaOH, dries up after 1 hour by pure water rinsing with dry compressed air; 4th step, detects the cleaning situation of spinnerets; 5th step, if detect defective repeat the 3rd step until detect qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510513118.9A CN105002575A (en) | 2015-08-20 | 2015-08-20 | Spinneret plate cleaning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510513118.9A CN105002575A (en) | 2015-08-20 | 2015-08-20 | Spinneret plate cleaning method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105002575A true CN105002575A (en) | 2015-10-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510513118.9A Pending CN105002575A (en) | 2015-08-20 | 2015-08-20 | Spinneret plate cleaning method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105002575A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105483840A (en) * | 2015-11-24 | 2016-04-13 | 宜宾丝丽雅股份有限公司 | Novel spinning head washing technology |
| CN107201556A (en) * | 2017-04-28 | 2017-09-26 | 中简科技股份有限公司 | A kind of cleaning method of wet-dry change PAN spinning stainless steel spinneret |
| CN107630255A (en) * | 2017-11-13 | 2018-01-26 | 苏州金泉新材料股份有限公司 | The cleaning method of polyphenylene sulfide melt spinning spinneret |
| CN112323149A (en) * | 2020-09-24 | 2021-02-05 | 烟台泰和新材料股份有限公司 | Spinneret plate cleaning process |
Citations (5)
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| WO2005058969A1 (en) * | 2003-12-18 | 2005-06-30 | Lenzing Aktiengesellschaft | Method for purifying aggregates that are contaminated with macromolecular carbohydrates and/or the degradation products thereof |
| CN101165237A (en) * | 2006-10-18 | 2008-04-23 | 中国石化上海石油化工股份有限公司 | Method for preparing polyacrylonitrile-based carbon fiber protofilament |
| CN103305929A (en) * | 2012-03-06 | 2013-09-18 | 江苏天地化纤有限公司 | High-efficiency cleaning and maintenance method of spinning assembly |
| CN103451748A (en) * | 2012-05-28 | 2013-12-18 | 中国科学院宁波材料技术与工程研究所 | Cleaning method for polyacrylonitrile precursor spinning spinneret |
| CN104775167A (en) * | 2015-03-23 | 2015-07-15 | 中复神鹰碳纤维有限责任公司 | Cleaning method and equipment of spinneret plate for polyacrylonitrile fiber |
-
2015
- 2015-08-20 CN CN201510513118.9A patent/CN105002575A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005058969A1 (en) * | 2003-12-18 | 2005-06-30 | Lenzing Aktiengesellschaft | Method for purifying aggregates that are contaminated with macromolecular carbohydrates and/or the degradation products thereof |
| CN101165237A (en) * | 2006-10-18 | 2008-04-23 | 中国石化上海石油化工股份有限公司 | Method for preparing polyacrylonitrile-based carbon fiber protofilament |
| CN103305929A (en) * | 2012-03-06 | 2013-09-18 | 江苏天地化纤有限公司 | High-efficiency cleaning and maintenance method of spinning assembly |
| CN103451748A (en) * | 2012-05-28 | 2013-12-18 | 中国科学院宁波材料技术与工程研究所 | Cleaning method for polyacrylonitrile precursor spinning spinneret |
| CN104775167A (en) * | 2015-03-23 | 2015-07-15 | 中复神鹰碳纤维有限责任公司 | Cleaning method and equipment of spinneret plate for polyacrylonitrile fiber |
Non-Patent Citations (1)
| Title |
|---|
| 赵彦民: "《涤纶短纤维生产设备》", 31 May 1992, 东南大学出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105483840A (en) * | 2015-11-24 | 2016-04-13 | 宜宾丝丽雅股份有限公司 | Novel spinning head washing technology |
| CN107201556A (en) * | 2017-04-28 | 2017-09-26 | 中简科技股份有限公司 | A kind of cleaning method of wet-dry change PAN spinning stainless steel spinneret |
| CN107630255A (en) * | 2017-11-13 | 2018-01-26 | 苏州金泉新材料股份有限公司 | The cleaning method of polyphenylene sulfide melt spinning spinneret |
| CN107630255B (en) * | 2017-11-13 | 2019-06-07 | 苏州金泉新材料股份有限公司 | The cleaning method of polyphenylene sulfide melt spinning spinneret |
| CN112323149A (en) * | 2020-09-24 | 2021-02-05 | 烟台泰和新材料股份有限公司 | Spinneret plate cleaning process |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151028 |