CN102691134B - Method for producing and guiding carbon fiber by using high-temperature carbonization furnace and high-temperature carbonization furnace thereof - Google Patents
Method for producing and guiding carbon fiber by using high-temperature carbonization furnace and high-temperature carbonization furnace thereof Download PDFInfo
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- CN102691134B CN102691134B CN201210186204XA CN201210186204A CN102691134B CN 102691134 B CN102691134 B CN 102691134B CN 201210186204X A CN201210186204X A CN 201210186204XA CN 201210186204 A CN201210186204 A CN 201210186204A CN 102691134 B CN102691134 B CN 102691134B
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Abstract
The invention relates to method for producing and guiding carbon fiber by using a high-temperature carbonization furnace. The method adopts the high-temperature carbonization furnace, and is characterized by comprising the steps of: tying a plurality of carbon fiber graphitized ropes at the back end of a nickel-chromium metal wire which penetrates in from an inlet of the high-temperature carbonization furnace and out from an outlet of the high-temperature carbonization furnace to ensure that the carbon fiber graphitized ropes penetrate the high-temperature carbonization furnace and are detained at two ends of the high-temperature carbonization furnace, subjecting quantitative low-temperature carbon fiber carbonized tows to high-temperature processing of five temperature regions of the high-temperature carbonization furnace at a constant speed to form high-temperature carbonized tows, cutting when the length of the high-temperature carbonized tows guided out from the outlet of the high-temperature carbonization furnace reaches a specified length, and repeating the operations to continuously produce the high-temperature carbonized tows of the carbon fiber, wherein a triangular graphite block beneficial to guiding a traction appliance out of the outlet of the high-temperature carbonization furnace is arranged in a furnace hearth located at one end of the outlet of the high-temperature carbonization furnace. The method is scientific and reasonable, capable of saving the energy, increasing the raw material use rate and reducing the production cost, and capable of realizing efficient and rapid fiber guiding and therefore is high in finished product rate and good in finished product quality.
Description
Technical field
The present invention relates to carbon fiber production technology and device thereof, is that a method and high temperature carbonization furnace thereof are drawn in the production of a kind of high temperature carbonization furnace carbon fiber.
Background technology
Carbon fiber is one of high-tech new material, and purposes is extremely extensive.The carbon fiber production process is: polyacrylonitrile fibril is carried by the thread supplying machine structure, through atomizing, traction is 100～300 ℃ pre-oxidation furnace by the production temperature, the low-temperature zone pre-oxidation treatment of 6 warm areas, continue atomizing again, traction is 400～900 ℃ pre-oxygen fiber low temperature carbonization furnace by the production temperature, the low-temperature carbonization of 6 warm areas is handled and is formed the low-temperature carbonization silk, again through driving, drawing-off is 900～1400 ℃ high temperature carbonization furnace by the production temperature, the high-temperature process of 5 warm areas forms the high temperature cabonization silk, Continuous Drive, through the fiber surface processing mechanism high temperature cabonization silk is carried out surface treatment, Continuous Drive, through carbon fiber gluing processing mechanism surface-treated high temperature cabonization silk being carried out gluing handles, Continuous Drive again, make the carbon fiber rolling, doff is received silk and is become axle, after check, qualified finished product carbon fiber wire vanning, warehouse-in.The finished product carbon fiber wire is referred to as carbon fiber product.
In the existing carbon fiber production process, draw wire process at high temperature carbonization furnace, all be to adopt following steps: when the high temperature carbonization furnace furnace temperature reaches 900 ℃, adopt the refractory metal silk, it generally is the higher wire of Ni and Cr contained, the low-temperature carbonization silk was drawn high temperature carbonization furnace, other working condition is constant, treat that the carbonization furnace temperature reaches 1400 ℃ of production temperature, just the carbon fiber high temperature silk that will produce this moment is received silk, that is to say, can only be as waste product through the filament of high temperature carbonization furnace output before 1400 ℃ of the production temperature.If device fails operation and plant issue for example occur and causes fracture of wire, also furnace temperature to be down to 900 ℃ and draw silk again.Even down time is very short, so long as fracture of wire takes place, also to lowers the temperature and draw silk.Finish every batch of precursor production, when renewing a collection of precursor, equally also will lower the temperature and draw silk.This method, mainly Shi Nie Chrome metal can be operated in the time of 900 ℃, temperature raises and will cause the very soft even fusing of wire, during furnace temperature is by 900 ℃～1400 ℃, the loss that causes the energy and raw material is very big, be example with our 500 tons of carbon fiber production lines: the high temperature carbonization furnace heating rate is 120 ℃/h, want 4.2 hours consuming time by 900 ℃ to 1400 ℃, following loss is arranged during this period of time: high temperature carbonization furnace power consumption: 820KW * 4.2h * 0.6 yuan/kwh=2066 unit, in fact during this period of time all in operation, its electric energy all wastes whole production line.Except the total electric power of high temperature carbonization furnace production line is 5200kw, its power consumption is: 5200KW * 4.2h * 0.6 yuan/kwh=13104 unit, natural gas: 130m
3/ h * 4.2h * 3.5 yuan/m
3=1911 yuan, natural gas tank car rate: 1000 yuan/h * 4.2h=4200 unit, nitrogen: 900 m
3/ h * 4.2h * 0.5 yuan/m
3=1890 yuan, water: 60 m
3/ h * 4.2h * 4.8 yuan/m
3=1210 yuan, precursor: 210 * 1.5g/m * 4.2h * 7m/min * 45 yuan/kg=25005 unit, so, in these 4.2 hours, with regard to the loss of valuable 49386 yuan energy and raw material, and be all to want several of normal and abnormal generations in every month.Get off the whole year, the loss of units up to a million is arranged unexpectedly, and this does not also add artificial and administrative expenses and since prior art adopt wire as the high temperature carbonization furnace carbon fiber production draw an apparatus, cause a large amount of waste product carbon fiber wires to occur, caused waste and the economic loss of raw material, the energy.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, production is drawn a method and is carried out substantial improvements to existing high temperature carbonization furnace carbon fiber, provide a kind of methodological science reasonable, can energy savings, improve utilization rate of raw materials and reduce production costs, can realize drawing efficiently, fast silk, the yield rate height, a method is drawn in the production of the measured high temperature carbonization furnace carbon fiber of matter, and high temperature carbonization furnace rational in infrastructure is provided.
Realize that the technical scheme that the object of the invention is taked is: a method is drawn in the production of a kind of high temperature carbonization furnace carbon fiber, it comprises high temperature carbonization furnace, the production temperature of its high temperature carbonization furnace is 900～1400 ℃, it is characterized in that: with a nickel chromium triangle wire as Tractor, there are some carbon fiber and graphite ropes in the rear end system of Tractor, the Tractor of the solid some carbon fiber and graphite ropes of system penetrates from the entrance of high temperature carbonization furnace, pass from its outlet again, thereby make the carbon fiber and graphite rope run through and be stranded in the two ends of high temperature carbonization furnace, make and be stranded in some carbon fiber and graphite ropes of high temperature carbonization furnace and separate with Tractor, quantitative low temperature carbon fibre carbonizing tow and the wherein overhanging end that is positioned at several carbon fiber and graphite ropes of high temperature carbonization furnace porch are connected, tractive is positioned at the high temperature carbonization furnace exit, the overhanging end of its carbon fiber and graphite rope, with low temperature carbon fibre carbonizing tow at the uniform velocity via the high temperature carbonization furnace entrance, the high-temperature process of 5 warm areas by high temperature carbonization furnace, draw from the high temperature cabonization outlet of still and form the high temperature cabonization tow, when treating to reach the length of regulation from the high temperature cabonization tow that the high temperature cabonization outlet of still is drawn, cut off; Repeat aforesaid operations again, produce the high temperature cabonization tow of carbon fiber continuously.
At the burner hearth that is positioned at described high temperature cabonization outlet of still one end, be equipped with and be beneficial to the triangle graphite block that Tractor is derived the high temperature cabonization outlet of still.
The invention has the beneficial effects as follows, owing to adopt the carbon fiber and graphite rope and need the low temperature carbon fibre carbonizing tow of high-temperature process to be connected, the carbon fiber and graphite rope is only the connector of traction low temperature carbon fibre carbonizing tow, and an one metal wire nickel chromium triangle Tractor as the carbon fiber and graphite rope, Tractor just makes things convenient for the carbon fiber and graphite rope to run through and be stranded in the two ends of high temperature carbonization furnace, the carbon fiber and graphite rope has high temperature resistant, having under the inert gas shielding, can anti-2500 ℃～3000 ℃ high temperature; Good corrosion resistance can anti-strong acid, the corrosion of highly basic; Intensity is big, and its tensile strength can reach 30～50GPa, quality softness, but setting fastening, braiding, and the characteristic that is complementary with high temperature carbonization furnace heating curve and other equipment are after fibre bundle leaves low temperature carbonization furnace, when the high temperature furnace furnace temperature also reaches the production temperature, can draw silk, ordinary production.Its methodological science is reasonable, can energy savings, improve utilization rate of raw materials, shortened nonproductive time, and reduced production cost, can realize efficiently, draw fast silk, the yield rate height, quality is good; Because in the burner hearth of high temperature cabonization outlet of still one end, be equipped with and be beneficial to the triangle graphite block that Tractor is derived the high temperature cabonization outlet of still, it is rational in infrastructure, makes things convenient for the traction of carbon fiber and graphite rope, has shortened the used time of traction carbon fiber and graphite rope.
Description of drawings
Fig. 1 is the high temperature carbonization furnace cross-sectional schematic (Tractor that is connected with the carbon fiber and graphite rope penetrates the high temperature carbonization furnace state) that a method is drawn in the production of high temperature carbonization furnace carbon fiber.
Fig. 2 is the high temperature carbonization furnace cross-sectional schematic (several carbon fiber and graphite ropes run through and be stranded in the two ends state of high temperature carbonization furnace) that a method is drawn in the production of high temperature carbonization furnace carbon fiber.
Fig. 3 is the high temperature carbonization furnace cross-sectional schematic (carbon fiber and graphite rope traction carbon fibre carbonizing tow state) that a method is drawn in the production of high temperature carbonization furnace carbon fiber.
Among the figure: 1 entrance, 2 burner hearths, 3 triangle graphite blocks, 4 nickel chromium triangle wires, 5 carbon fiber and graphite ropes, 6 outlets.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
With reference to Fig. 1-Fig. 3, a method is drawn in high temperature carbonization furnace carbon fiber of the present invention production, comprise high temperature carbonization furnace, the production temperature of its high temperature carbonization furnace is 900～1400 ℃, with a nickel chromium triangle wire 4 as Tractor, there are some carbon fiber and graphite ropes 5 in the rear end system of Tractor, the Tractor of the solid some carbon fiber and graphite ropes 5 of system penetrates from the entrance 1 of high temperature carbonization furnace, pass from its outlet 6 again, thereby make carbon fiber and graphite rope 5 run through and be stranded in the two ends of high temperature carbonization furnace, make and be stranded in some carbon fiber and graphite ropes 5 of high temperature carbonization furnace and separate with Tractor, quantitative low temperature carbon fibre carbonizing tow and the wherein overhanging end that is positioned at several carbon fiber and graphite ropes 5 at high temperature carbonization furnace entrance 1 place are connected, tractive is positioned at high temperature cabonization outlet of still 6 places, the overhanging end of its carbon fiber and graphite rope 5, with low temperature carbon fibre carbonizing tow at the uniform velocity via high temperature carbonization furnace entrance 1, the high-temperature process of 5 warm areas by high temperature carbonization furnace, draw from high temperature cabonization outlet of still 6 and form the high temperature cabonization tow, when treating to reach the length of regulation from the high temperature cabonization tow that the high temperature cabonization outlet of still is drawn, cut off; Repeat aforesaid operations again, produce the high temperature cabonization tow of carbon fiber continuously.
At the burner hearth 2 that is positioned at described high temperature cabonization outlet of still 6 one ends, be equipped with and be beneficial to the triangle graphite block 3 that Tractor is derived high temperature cabonization outlet of still 6, make the outlet 6 of passing high temperature carbonization furnace along domatic the moving ahead of triangle graphite block 3 as the nickel chromium triangle wire of Tractor.
The high temperature carbonization furnace that has triangle graphite block 3 in the improved burner hearth 2, utilize high temperature carbonization furnace carbon fiber of the present invention production to draw a method, through 8 months trial production, obtain significant technology and economic effect, realized the object of the invention and described effect.
The present invention does not limit to this specific embodiment, and those skilled in the art are any to copy and improve without creationary, should be considered as the scope of claim protection of the present invention.
Claims (1)
1. a method is drawn in high temperature carbonization furnace carbon fiber production, it comprises high temperature carbonization furnace, the production temperature of its high temperature carbonization furnace is 900～1400 ℃, it is characterized in that: with a nickel chromium triangle wire as Tractor, there are some carbon fiber and graphite ropes in the rear end system of Tractor, the Tractor of the solid some carbon fiber and graphite ropes of system penetrates from the entrance of high temperature carbonization furnace, pass from its outlet again, thereby make the carbon fiber and graphite rope run through and be stranded in the two ends of high temperature carbonization furnace, make and be stranded in some carbon fiber and graphite ropes of high temperature carbonization furnace and separate with Tractor, quantitative low temperature carbon fibre carbonizing tow and the wherein overhanging end that is positioned at several carbon fiber and graphite ropes of high temperature carbonization furnace porch are connected, tractive is positioned at the overhanging end of the carbon fiber and graphite rope in high temperature carbonization furnace exit, with low temperature carbon fibre carbonizing tow at the uniform velocity via the high temperature carbonization furnace entrance, the high-temperature process of 5 warm areas by high temperature carbonization furnace, draw from the high temperature cabonization outlet of still and form the high temperature cabonization tow, when treating to reach the length of regulation from the high temperature cabonization tow that the high temperature cabonization outlet of still is drawn, cut off; Repeat aforesaid operations again, produce the high temperature cabonization tow of carbon fiber continuously.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210186204XA CN102691134B (en) | 2012-06-07 | 2012-06-07 | Method for producing and guiding carbon fiber by using high-temperature carbonization furnace and high-temperature carbonization furnace thereof |
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| CN201210186204XA CN102691134B (en) | 2012-06-07 | 2012-06-07 | Method for producing and guiding carbon fiber by using high-temperature carbonization furnace and high-temperature carbonization furnace thereof |
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| CN102691134A CN102691134A (en) | 2012-09-26 |
| CN102691134B true CN102691134B (en) | 2013-09-11 |
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| CN106167926A (en) * | 2016-06-27 | 2016-11-30 | 广州赛奥碳纤维技术有限公司 | Tow cooling and power-saving technology in a kind of novel carbon fiber production carbide furnace |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956250A (en) * | 2010-09-17 | 2011-01-26 | 西安航科等离子体科技有限公司 | Low-temperature carbide furnace for producing continuous carbon fiber |
| CN101956248A (en) * | 2010-09-17 | 2011-01-26 | 西安航科等离子体科技有限公司 | Low-temperature carbide furnace for producing continuous carbon fibers |
| CN202247063U (en) * | 2011-08-12 | 2012-05-30 | 中国石油天然气股份有限公司 | Tractor enabling fiber to penetrate through low temperature carbonization furnace during carbon fiber production |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH01124627A (en) * | 1987-11-09 | 1989-05-17 | Toa Nenryo Kogyo Kk | Production of carbon fiber and apparatus therefor |
| US9725314B2 (en) * | 2008-03-03 | 2017-08-08 | Performancy Polymer Solutions, Inc. | Continuous process for the production of carbon nanofiber reinforced continuous fiber preforms and composites made therefrom |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956250A (en) * | 2010-09-17 | 2011-01-26 | 西安航科等离子体科技有限公司 | Low-temperature carbide furnace for producing continuous carbon fiber |
| CN101956248A (en) * | 2010-09-17 | 2011-01-26 | 西安航科等离子体科技有限公司 | Low-temperature carbide furnace for producing continuous carbon fibers |
| CN202247063U (en) * | 2011-08-12 | 2012-05-30 | 中国石油天然气股份有限公司 | Tractor enabling fiber to penetrate through low temperature carbonization furnace during carbon fiber production |
Non-Patent Citations (3)
| Title |
|---|
| JP平1-124627A 1989.05.17 |
| 关于生产过程中提高碳纤维产品质量的探讨;姜泽;《高科技纤维与应用》;20090831;第34卷(第4期);第19-21页 * |
| 姜泽.关于生产过程中提高碳纤维产品质量的探讨.《高科技纤维与应用》.2009,第34卷(第4期),第19-21页. |
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Owner name: JILIN FANGDA JIANGCHENG CARBON FIBER CO., LTD. Free format text: FORMER NAME: SINOSTEEL JIANGCHENG CARBON FIBER CO., LTD. |
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Address after: 132512 No. nine, 516-1 street, Jilin economic and Technological Development Zone, Jilin Patentee after: JILIN FANGDA JIANGCHENG CARBON FIBER CO., LTD. Address before: 132512 No. nine, 516-1 street, Jilin economic and Technological Development Zone, Jilin Patentee before: SINOSTEEL Jiangcheng Carbon Fiber Co.,Ltd. |
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