CN106637761B - Carbon fiber pilot sizing drying device - Google Patents
Carbon fiber pilot sizing drying device Download PDFInfo
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- CN106637761B CN106637761B CN201611260597.9A CN201611260597A CN106637761B CN 106637761 B CN106637761 B CN 106637761B CN 201611260597 A CN201611260597 A CN 201611260597A CN 106637761 B CN106637761 B CN 106637761B
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- sizing
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/02—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fibres, slivers or rovings
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
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- Treatment Of Fiber Materials (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a carbon fiber pilot sizing drying device, and belongs to the technical field of carbon fiber production equipment. The device comprises a sizing device, a drying device and a drafting device for drafting tows through the sizing device and the drying device. The sizing device comprises a sizing roller, a power device for providing power for the sizing roller and a heat-insulating interlayer. The drying device comprises a drying furnace provided with a temperature sensor, a gas storage heating tank communicated with the drying furnace through a heat preservation pipeline, and a pneumatic regulating valve communicated with the gas storage heating tank through an air inlet pipe. The pilot sizing drying device provided by the invention can independently adjust factors such as the advancing speed, sizing speed, drying temperature, gas flow speed and the like of the tows in the sizing process, can simulate the production process of high-performance carbon fibers of each level, is convenient for cooperatively controlling the whole processing process, and can obtain technical information which is more close to production practice in adjusting process parameters or producing carbon fibers of different levels with different performances.
Description
Technical Field
The invention relates to a carbon fiber pilot sizing drying device, and belongs to the technical field of carbon fiber production equipment.
Background
The carbon fiber is an inorganic polymer fiber with carbon content of more than 90%, has the characteristics of soft processability, light weight, high specific strength and the like besides the characteristics of high temperature resistance, friction resistance, corrosion resistance, electric conduction, heat conduction and the like of a common carbon material, and is widely applied to various fields such as military, textile, sports equipment, chemical industry, medical equipment, machining and the like.
The preparation process of the polyacrylonitrile carbon fiber comprises raw material polymerization, steering spinning, water washing, drying densification, pre-oxidation, carbonization, sizing drying and the like. The sizing and drying are the last procedure in the preparation process of the carbon fiber, and the main purpose of the sizing and drying is to improve the bundling property, the wear resistance, the water absorption resistance and other properties of the carbon fiber so as to improve the processability of the fiber and facilitate the application.
The sizing and drying processes of carbon fibers are affected by many factors, such as the rotation speed of a roller in the sizing process, the strength of stretching and holding, the temperature and the flow speed of gas in the drying process, and the like, which can affect the sizing uniformity of fiber tows, the bundling property of tows, and the like. When changing the production process and preparing carbon fiber products with different properties and grades, the sizing and drying process often needs to be adjusted. Although some sizing and drying equipment exists in the carbon fiber production at present, the equipment is designed for actual production, has the characteristics of complex structure, strong specificity and the like, and because the production conditions are relatively fixed, the regulation and control range of the production conditions and environmental influence factors is small, the requirements of pilot-scale regulation and control are not met, and meanwhile, if the production equipment is simply reduced, the matched auxiliary device is also required to be correspondingly reduced, so that pilot-scale can not be carried out simply by reducing the production equipment. Furthermore, the whole production line needs to be stopped if debugging is to be performed. And the sizing drying equipment for miniature or small-sized tests is far different from a production system, and the reliability and the reference value of the results obtained by using the sizing drying equipment for the miniature or small-sized tests for test debugging are low. Therefore, a pilot plant for sizing and drying carbon fibers, which has a simple structure and is more similar to actual production, is lacking at present.
Disclosure of Invention
In order to solve the problems that in the adjustment process of the sizing and drying process of the carbon fiber, the debugging cost is high, the production is affected, the difference between micro or small equipment and the production is far, the result reference value is low, and the like, the invention provides a carbon fiber pilot sizing and drying device, which adopts the following technical scheme:
a carbon fiber pilot sizing and drying device, which comprises a sizing device 2, a drying device 3 and a drafting device for drafting tows 8 through the sizing device 2 and the drying device 3;
the sizing device 2 comprises a sizing roller 21, a power device for providing power for the sizing roller 21 and a heat-insulating interlayer 26;
the drying device 3 comprises a drying furnace 31 provided with a temperature sensor 32, a gas storage heating tank 34 communicated with the drying furnace 31 through a heat preservation pipeline 33, and a pneumatic control valve 37 communicated with the gas storage heating tank 34 through an air inlet pipe 35.
Preferably, the sizing drying device further comprises a control device 5 which is interlocked with the drafting device, the power mechanism of the sizing roller 21, the temperature sensor 32, the gas storage heating tank 34 and the pneumatic control valve 38, so as to cooperatively control factors or parameters such as traction force, traction speed, speed of the filament bundle in the sizing drying process, temperature of sizing agent, sizing time, drying temperature, drying speed, flow rate of hot air and the like, so as to facilitate process optimization of the sizing drying process.
The control device 5 may be a computer control system provided with a DCS system and/or a PLC system, or other existing systems capable of implementing control functions. Specific control instructions can be written by those skilled in the art according to experimental needs and specific requirements.
Preferably, the drafting device consists of a drafting machine I1 and a drafting machine II 4; the power devices of the draft machine I1 and the draft machine II4 connected with the draft roller are interlocked with the control device 5.
The chain can be electrically connected in the forms of a wire, an electric wire, a data wire and the like; or may be linked by a signal in the form of a network signal or the like.
Preferably, air locks 38 are arranged at two ends of the heating and drying cavity of the drying furnace 31, so that the drying air is sealed when static drying is adopted, and the stability of the temperature in the heating and drying cavity of the drying furnace is ensured.
Preferably, the airlock 38 is a labyrinth airlock.
Preferably, the air storage heating tank 34 is connected with one end of a pneumatic control valve 37 or a manual control valve 36.
Preferably, the sizing device 2 comprises a sizing tank, a sizing roller 21, a guide roller 24, a power device connected with the sizing roller 21 and the guide roller 24, and a heat-insulating interlayer 26 wrapped outside the sizing tank.
More preferably, the tow introduction and withdrawal ends of the sizing tank each have a sizing roller 21 and a guide roller 24; the guide roller 24 is positioned above the sizing roller 21; the sizing roller 21 is partially or completely immersed in the sizing agent in the sizing tank.
More preferably, the bottom of the sizing tank is provided with a liquid inlet 22 and a liquid outlet 23 connected with an external circulation device through a pipe.
More preferably, the liquid inlet 22 is positioned at the filament bundle outlet end of the sizing tank;
the liquid outlet 23 is positioned at the tow introduction end of the sizing tank.
Preferably, the drying chamber of the drying furnace 31 of the drying device 3 has a diameter of 100-200 mm and a length of 1.2-2.5 m. Meanwhile, an insulating layer with the thickness of 120-150 mm is arranged outside the drying cavity, and the insulating layer is aluminum silicate cotton so as to ensure the temperature in the isolated production process, ensure the temperature in the furnace to be 120-200 ℃, and ensure the temperature outside the road to be lower than 30 ℃.
Compared with the prior art, the invention has the beneficial effects that:
the pilot sizing drying device provided by the invention has high similarity with actual production equipment, can independently adjust the advancing speed of tows, the sizing speed, the drying temperature, the gas flow speed and other factors in the sizing process, can simulate the production process of high-performance carbon fibers of each level, is convenient for cooperatively controlling the whole processing process, and can acquire technical information which is more close to production reality in adjusting process parameters or producing carbon fibers of different levels with different performances. Meanwhile, the device can independently carry out the sizing and drying process of the fiber tows, and the normal operation of fiber production is not affected.
The pilot sizing drying equipment provided by the invention can provide basis for accumulating high-performance carbon fiber production process data and guiding industrial production. Meanwhile, the problems of high energy consumption, large waste and serious environmental pollution caused by the test of large-scale production equipment and product technology can be avoided.
The device provided by the invention can carry out sizing drying test on 1-10 bundles of carbon fiber tows, and can be flexibly adjusted according to factors such as experimental requirements.
Drawings
Fig. 1 is a schematic structural diagram of a carbon fiber pilot sizing drying device in a preferred embodiment of the invention.
In the figure: 1, a drafting machine I;2, sizing device; 3, a drying device; 4, a drafting machine II;5, a control device; 8, a silk bundle; 21, sizing roller; 22, a liquid inlet; 23, a liquid outlet; 24, guiding rollers; 25, a gear box; 26, heat preservation interlayer; 31, a drying furnace; 32, a temperature sensor; 33, a heat preservation pipeline; 34, a gas storage heating tank; 35, an air inlet pipe; 36, manually adjusting the valve; 37, pneumatic control valve; 38, airlock.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, but the following detailed description is not to be taken in a limiting sense.
Fig. 1 is a schematic structural diagram of a carbon fiber pilot sizing drying device in a preferred embodiment of the invention. As can be seen from fig. 1, the sizing and drying device is composed of a drawing machine I1, a sizing device 2, a drying device 3 and a drawing machine II4 in this order from right to left. The drafting machine I1 and the drafting machine II4 are the same in arrangement, are five-roller drafting machines, and are arranged in a staggered manner from top to bottom in three of 5 drafting rollers. The rear side of the drawing roller is provided with a power device for providing power for the drawing roller, and the power device can be composed of a motor, a speed reducer thereof and a gear box.
The sizing device 2 is composed of a sizing tank, a sizing roller 21 and a guide roller 24 which are respectively positioned in and above the sizing tank, and a heat-insulating interlayer 26 which is wrapped outside the sizing tank. Wherein the sizing roller 21 and the guide roller 24 are respectively one of the tow leading-in end and the tow leading-out end of the sizing tank, and the sizing roller 21 and the guide roller 24 on the same side are connected with a gear box 25 of a power device for providing power thereto. The bottom of the sizing tank is provided with a liquid inlet 22 and a liquid outlet 23, wherein the liquid inlet 22 is positioned at the tow leading-out end, and the liquid outlet 23 is positioned at the leading-in end of the tow 8. The liquid inlet 22 and the liquid outlet 23 are connected with a circulation system of sizing agent. In use, the sizing agent may be caused to flow in a direction opposite to the direction of travel of the tow.
The drying device 3 mainly comprises a drying furnace 31 positioned at the upper part and a heating device positioned at the bottom of the drying furnace. The drying furnace 31 is provided with a drying cavity which is penetrated along the length direction or the axial direction, air locks 38 can be arranged at two sides of the heating drying cavity, and when the drying furnace adopts sealed static drying, labyrinth air locks can be selected for sealing so as to prevent the air for drying from overflowing from two sides of the drying cavity and ensure the stability of the temperature in the drying cavity. Accordingly, a humid air exhaust port is provided in the furnace chamber to exhaust humid air generated during the drying process. The air lock 38 is not adopted, and air recovery devices are arranged at the two sides of the inlet and the outlet of the drying cavity to suck the recovered gas so as to be convenient for recycling. In the drying oven 31, 3 temperature sensors 32 are provided for detecting and feeding back temperature information at different positions in the drying chamber. The bottom of the drying furnace 31 is a heating device. The inside of the heating device is provided with a gas storage heating tank 34 for storing and heating air inputted through an air inlet pipe 35. The gas storage heating tank 34 is communicated with the middle part of the drying cavity of the drying furnace 31 through a heat preservation pipeline 33 to provide a drying heat source for the drying furnace 31. The air intake pipe 35 is provided with a manual regulating valve 36 and a pneumatic regulating valve 37 so as to control the amount of intake air and the flow rate of air into the air storage heating tank 34 manually or automatically. The air storage heating tank 34 is provided with a button capable of controlling heating so as to manually control the heating temperature. Meanwhile, in order to prevent the heat of the air storage heating tank 34 from leaking, an insulation layer may be further provided outside thereof. Wherein, the length of the drying cavity in the drying furnace 31 can be set to be 2m, the diameter is 150mm, and a 130mm thick aluminum silicate cotton heat insulation layer is arranged outside the drying cavity so as to ensure the constant temperature difference between the inside and the outside of the furnace. When the temperature in the drying cavity reaches 200 ℃, the outside of the drying cavity can still be maintained below 30 ℃.
In this preferred embodiment, a control device 5 is also provided. The control device 5 is interlocked with the power mechanism of the drawing machine I1, the drawing machine II4, the power mechanism of the guide roller 24 and the sizing roller 21, the temperature adjusting mechanism of the heat-insulating interlayer 26, the pneumatic adjusting valve 37, the air storage heating tank 34 and the temperature sensor 32, respectively. Thereby realizing the independent and cooperative control of factors such as the traction speed, the sizing temperature, the drying air quantity or the drying air flow speed of the tows 8, so as to optimize the technological parameters of the sizing drying process and adapt to the production of carbon fibers with different requirements. The control device 5 may be a computer system equipped with a DCS or/and PLC control system, or may be another conventional control function capable of realizing the above control function. As for specific control instructions, those skilled in the art can write according to specific experimental requirements and actual conditions.
While the invention has been described in terms of preferred embodiments, it is not intended to be limited thereto, but rather to enable any person skilled in the art to make various changes and modifications without departing from the spirit and scope of the present invention, which is therefore to be limited only by the appended claims.
Claims (8)
1. The pilot sizing and drying device for the carbon fiber is characterized by comprising a sizing device (2), a drying device (3) and a drafting device for drafting tows (8) through the sizing device (2) and the drying device (3);
the sizing device (2) comprises a sizing roller (21), a power device for providing power for the sizing roller (21) and a heat-insulating interlayer (26);
the drying device (3) comprises a drying furnace (31) provided with a temperature sensor (32), a gas storage heating tank (34) communicated with the drying furnace (31) through a heat preservation pipeline (33), and a pneumatic regulating valve (37) communicated with the gas storage heating tank (34) through an air inlet pipe (35);
the device also comprises a control device (5) connected with the drafting device, the power mechanism of the sizing roller (21), the temperature sensor (32), the gas storage heating tank (34) and the pneumatic regulating valve (37);
one end of the air storage heating tank (34) is connected with a pneumatic adjusting valve (37) or a manual adjusting valve (36).
2. The carbon fiber pilot sizing drying device according to claim 1, wherein the drafting device consists of a drafting machine I (1) and a drafting machine II (4); the power devices of the drafting machine I (1) and the drafting machine II (4) which are connected with the drafting rollers are interlocked with the control device (5).
3. The carbon fiber pilot sizing drying device according to claim 1, wherein air locks (38) are arranged at two ends of a heating drying cavity of the drying furnace (31).
4. A carbon fiber pilot sizing drying device according to claim 1, wherein the sizing device (2) comprises a sizing tank, a sizing roller (21), a guide roller (24), a power device connected with the sizing roller (21) and the guide roller (24), and a heat-insulating interlayer (26) wrapped outside the sizing tank.
5. A carbon fiber pilot sizing drying device according to claim 4, wherein the tow inlet and outlet ends of the sizing tank are each provided with a sizing roller (21) and a guide roller (24); the guide roller (24) is positioned above the sizing roller (21); the sizing roller (21) is partially or completely immersed in sizing agent in the sizing tank.
6. The carbon fiber pilot sizing drying device according to claim 5, wherein a liquid inlet (22) and a liquid outlet (23) which are connected with an external circulation device through a pipeline are arranged at the bottom of the sizing tank.
7. The carbon fiber pilot sizing drying device according to claim 6, wherein the liquid inlet (22) is positioned at a sizing tank tow outlet; the liquid outlet (23) is positioned at the tow introduction end of the sizing tank.
8. The carbon fiber pilot sizing drying device according to claim 1, wherein the diameter of a drying cavity of a drying furnace (31) of the drying device (3) is 100-200 mm, and the length is 1.2-2.5 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611260597.9A CN106637761B (en) | 2016-12-30 | 2016-12-30 | Carbon fiber pilot sizing drying device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611260597.9A CN106637761B (en) | 2016-12-30 | 2016-12-30 | Carbon fiber pilot sizing drying device |
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| CN106637761A CN106637761A (en) | 2017-05-10 |
| CN106637761B true CN106637761B (en) | 2023-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611260597.9A Active CN106637761B (en) | 2016-12-30 | 2016-12-30 | Carbon fiber pilot sizing drying device |
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| CN113373614B (en) * | 2021-03-12 | 2022-11-18 | 山东玻纤集团股份有限公司 | Sizing and drying device for glass fiber production and using method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101831719A (en) * | 2010-05-21 | 2010-09-15 | 江苏神泰科技发展有限公司 | High-performance fiber synchrotron radiation in-situ testing machine |
| CN202826146U (en) * | 2012-09-20 | 2013-03-27 | 天津市飞荣达科技有限公司 | Gum dipping device for continuously infiltrating sizing agent on surfaces of multiple fibers |
| CN103334246A (en) * | 2013-06-28 | 2013-10-02 | 中简科技发展有限公司 | Sizing, drying and shaping device for polyacrylonitrile-based carbon fiber |
| CN203411789U (en) * | 2013-06-28 | 2014-01-29 | 中简科技发展有限公司 | Device for producing polyacrylonitrile carbon fiber |
| CN206385337U (en) * | 2016-12-30 | 2017-08-08 | 哈尔滨天顺化工科技开发有限公司 | A kind of carbon fiber pilot scale starching drying device |
-
2016
- 2016-12-30 CN CN201611260597.9A patent/CN106637761B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831719A (en) * | 2010-05-21 | 2010-09-15 | 江苏神泰科技发展有限公司 | High-performance fiber synchrotron radiation in-situ testing machine |
| CN202826146U (en) * | 2012-09-20 | 2013-03-27 | 天津市飞荣达科技有限公司 | Gum dipping device for continuously infiltrating sizing agent on surfaces of multiple fibers |
| CN103334246A (en) * | 2013-06-28 | 2013-10-02 | 中简科技发展有限公司 | Sizing, drying and shaping device for polyacrylonitrile-based carbon fiber |
| CN203411789U (en) * | 2013-06-28 | 2014-01-29 | 中简科技发展有限公司 | Device for producing polyacrylonitrile carbon fiber |
| CN206385337U (en) * | 2016-12-30 | 2017-08-08 | 哈尔滨天顺化工科技开发有限公司 | A kind of carbon fiber pilot scale starching drying device |
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| CN106637761A (en) | 2017-05-10 |
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