CN203021698U - Continuous graphitization superhigh-temperature tube furnace - Google Patents
Continuous graphitization superhigh-temperature tube furnace Download PDFInfo
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- CN203021698U CN203021698U CN201220452602.7U CN201220452602U CN203021698U CN 203021698 U CN203021698 U CN 203021698U CN 201220452602 U CN201220452602 U CN 201220452602U CN 203021698 U CN203021698 U CN 203021698U
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Abstract
The utility model discloses a continuous graphitization superhigh-temperature tube furnace with the heating operating temperature of 2200 DEG C-2800 DEG C. The furnace structurally comprises a muffle furnace, a protecting tube, an insulation refractory coating and a furnace shell, wherein a graphite muffle furnace hearth is tubular, is separated into three temperature areas and is the only heating body of the furnace. Water-cooling copper electrodes are respectively installed at the two ends of the muffle furnace, the protecting tube with an adjusting device is arranged outside the muffle furnace and positioned between the muffle furnace and an insulation refractory material, and the axis of the protecting tube can be adjusted through the adjusting device. An insulating system which comprises the materials such as a graphite hard felt, a soft felt and a carbon-carbon composite material is arranged in a furnace body, the airtight water-cooling steel structural furnace shell is arranged outside the insulating system and consists of a plurality of independent water-cooling cavity bodies, and the cavity bodies respectively cool different areas of the furnace body. The furnace has the advantages of high working furnace temperature, uniform and stable temperature field, less heat collecting phenomena generated on a muffle furnace surface, long muffle furnace service life, simplicity in structure, easiness in machining and the like.
Description
Technical field
The invention belongs to the high-temperature heating device field, particularly be applicable to material, especially carbon fiber carries out the superhigh temperature graphitization processing, to form high carbon containing, graphited new material.
Background technology
Graphite fibre refers to that phosphorus content is at the carbon fiber more than 99%.Carbon fiber is processed through 2200-2800 ℃ of high temperature graphitization just can obtain graphite fibre.Graphite fibre is compared with carbon fiber, and not only phosphorus content is high, and stretch modulus is high.Therefore.Graphite fibre also is called high modulus carbon fiber.In addition, graphite fibre also has the excellent properties such as the little and Heat stability is good of thermal coefficient of expansion, dimensionally stable, thereby is used for making firm and thin and composite element dimensionally stable, is widely used in space vehicle and field of aerospace.
The carbonization technique of carbon current fiber, carbon paper material is divided into low-temperature carbonization and high temperature cabonization substantially.Domestic superhigh temperature carbonization works in 1800 ℃ of left and right.External superhigh temperature stove maximum temperature can reach 2800 ℃, and domestic this level that all do not reach.
Reason due to the carbide furnace self structure, furnace chamber is built by graphite material, is designed with calandria horse outside not and by heat radiation, heat is passed in burner hearth, causes a plurality of calandria connection jaws in the both sides of stove, unfavorable wiring and sealing have increased energy consumption simultaneously.This mode of heating also easily causes the temperature field skewness of burner hearth, and complex structure is inconvenient to make.In carbon fiber production process, whether the Temperature Distribution of Muffle furnace is evenly one of the key factor that affects the carbonization quality of carbon fiber.
Summary of the invention
The object of the invention is to overcome the shortcoming of prior art, and a kind of ultra-high-temperature tube-type carbide furnace is provided, and its treatment temperature can reach 2800 ℃, and is simple in structure, low energy consumption, the convenient manufacturing.
The present invention is achieved through the following technical solutions:
A kind of continuous graphitization ultra-high-temperature tube-type stove, the structure of carbide furnace comprises Muffle furnace, protection tube, thermal insulation fire-resistant layer, furnace shell; During work, heating-up temperature is 2600-2800 ℃; Muffle furnace is the graphite muffle thorax, and Muffle furnace is formed by connecting by two or more separable graphite-pipes in a tubular form, minute three warm areas in Muffle furnace; Horse two ends not are equipped with the copper electrode of water-cooled, and copper electrode is provided with electrode terminal; Horse is not outer is provided with protection tube, and protection tube is connected with regulator; Furnace shell is airtight water cooled furnace body, is made of the interior thermal insulation fire-resistant layer by jointly being comprised of carbon felt, graphite felt, carbon carbon composite of furnace shell a plurality of independently water-cooled cavitys.The Muffle furnace of ultra-high-temperature tube-type stove in a tubular form, is again the unique heater of stove simultaneously; Be divided into three warm areas in Muffle furnace, first, three-temperature-zone is as auxiliary warm area, temperature can reach 2600 ℃, and middle warm area is operation temperature area, and operating temperature reaches 2800 ℃.Muffle furnace is formed by connecting by two or more separable graphite-pipes, and whole Muffle furnace one end is fixed, and the other end at high temperature can free wxpansion.The two ends of Muffle furnace are equipped with the water-cooled copper electrode, and electrode is provided with terminals, and electrode can move with expanding with heat and contract with cold of Muffle furnace.The protection tube of ultra-high-temperature tube-type stove is arranged on the axial location of the regulator capable of regulating protection tube on furnace shell by adjusting between Muffle furnace and thermal insulation fire-resistant layer, to reach the dead in line on level and vertical direction of protection tube and body of heater.The regulator quantity of ultra-high-temperature tube-type stove is more than 4, and regulator is laterally having an angle α, and its value is the 10-120 degree.
Compared with prior art, beneficial effect of the present invention is: muffle tube greatly dwindles the size of body of heater as furnace chamber and heating tube, uniform distribution of temperature field is satisfying the manufacturing technique requirent of carbon fiber, reduces the wiring number, be easy to sealing, reduce nitrogen consumption and energy consumption.Reduce manufacturing cost.
Description of drawings
Fig. 1 is the structural representation of continuous graphitization ultra-high-temperature tube-type stove, and Fig. 2 is the B-B profile in Fig. 1.
In figure, 1. electrode, 2. furnace muffle, 3. protection tube, 4. heat insulating refractory material, 5. regulator, 6. wire
The specific embodiment
The below is described in further detail the specific embodiment of the present invention, but embodiments of the present invention are not limited to this.
Embodiment
In Fig. 1, carbon fiber enters furnace muffle (2) with the speed of 1m/min from the left end of carbide furnace, after the first warm area preliminary treatment of 2600 ℃, after carrying out the superhigh temperature graphitization processing through 2800 ℃ of second warm area, enter into the three-temperature-zone of 2600 ℃, the carbon fiber of processing leaves carbide furnace from the right-hand member fire door and enters next process.In the stove heating and cooling process, copper electrode (1) and wire (6) move with expanding with heat and contract with cold of furnace muffle (2), and providing of power supply is provided.In installation process or transportation; if it is obvious when mobile to find that protection tube (3) has; can raise or reduce the axis of protection tube by rotating clockwise or rotating counterclockwise each regulator (5), make level consistent with the axis of stove with vertical direction.
Claims (6)
1. continuous graphitization ultra-high-temperature tube-type stove, it is characterized in that: the structure of carbide furnace comprises Muffle furnace, protection tube, thermal insulation fire-resistant layer, furnace shell; During work, heating-up temperature is 2600-2800 ℃; Muffle furnace is the graphite muffle thorax, and Muffle furnace is formed by connecting by two or more separable graphite-pipes in a tubular form, minute three warm areas in Muffle furnace; Horse two ends not are equipped with the copper electrode of water-cooled, and copper electrode is provided with electrode terminal; Horse is not outer is provided with protection tube, and protection tube is connected with regulator; Furnace shell is airtight water cooled furnace body, is made of the interior thermal insulation fire-resistant layer by jointly being comprised of carbon felt, graphite felt, carbon carbon composite of furnace shell a plurality of independently water-cooled cavitys.
2. continuous graphitization ultra-high-temperature tube-type stove according to claim 1 is characterized in that: described Muffle furnace in a tubular form, is again the unique heater of stove simultaneously; Be divided into three warm areas in Muffle furnace, first, three-temperature-zone is as auxiliary warm area, temperature can reach 2600 ℃, and middle warm area is operation temperature area, and operating temperature reaches 2800 ℃.
3. continuous graphitization ultra-high-temperature tube-type stove according to claim 1, it is characterized in that: described Muffle furnace is formed by connecting by two or more separable graphite-pipes, and whole Muffle furnace one end is fixed, and the other end at high temperature can free wxpansion.
4. continuous graphitization ultra-high-temperature tube-type stove according to claim 1, it is characterized in that: the two ends of described Muffle furnace are equipped with the water-cooled copper electrode, and electrode is provided with terminals, and electrode can move with expanding with heat and contract with cold of Muffle furnace.
5. continuous graphitization ultra-high-temperature tube-type stove according to claim 1; it is characterized in that: described protection tube is between Muffle furnace and thermal insulation fire-resistant layer; be arranged on the axial location of the regulator capable of regulating protection tube on furnace shell by adjusting, to reach the dead in line on level and vertical direction of protection tube and body of heater.
6. continuous graphitization ultra-high-temperature tube-type stove according to claim 5, it is characterized in that: regulator quantity is more than 4, and regulator is laterally having an angle α, and its value is the 10-120 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220452602.7U CN203021698U (en) | 2012-09-06 | 2012-09-06 | Continuous graphitization superhigh-temperature tube furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220452602.7U CN203021698U (en) | 2012-09-06 | 2012-09-06 | Continuous graphitization superhigh-temperature tube furnace |
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| Publication Number | Publication Date |
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| CN203021698U true CN203021698U (en) | 2013-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220452602.7U Expired - Lifetime CN203021698U (en) | 2012-09-06 | 2012-09-06 | Continuous graphitization superhigh-temperature tube furnace |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797075A (en) * | 2012-09-06 | 2012-11-28 | 广州赛奥碳纤维技术有限公司 | Continuous graphitizing ultra-high temperature tube furnace |
| CN106521711A (en) * | 2016-11-08 | 2017-03-22 | 湖南大学 | Horizontal direct-current resistance type continuous ultrahigh temperature graphitizing furnace |
| CN106829915A (en) * | 2017-03-03 | 2017-06-13 | 中国科学院合肥物质科学研究院 | A kind of method of growth in situ carbon fiber in graphite felt |
| CN108928813A (en) * | 2018-07-28 | 2018-12-04 | 赣州市翔义科技有限公司 | Tubular furnace for preparing graphene |
-
2012
- 2012-09-06 CN CN201220452602.7U patent/CN203021698U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797075A (en) * | 2012-09-06 | 2012-11-28 | 广州赛奥碳纤维技术有限公司 | Continuous graphitizing ultra-high temperature tube furnace |
| CN106521711A (en) * | 2016-11-08 | 2017-03-22 | 湖南大学 | Horizontal direct-current resistance type continuous ultrahigh temperature graphitizing furnace |
| CN106829915A (en) * | 2017-03-03 | 2017-06-13 | 中国科学院合肥物质科学研究院 | A kind of method of growth in situ carbon fiber in graphite felt |
| CN106829915B (en) * | 2017-03-03 | 2018-10-30 | 中国科学院合肥物质科学研究院 | A kind of method of growth in situ carbon fiber in graphite felt |
| CN108928813A (en) * | 2018-07-28 | 2018-12-04 | 赣州市翔义科技有限公司 | Tubular furnace for preparing graphene |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 511356 2nd floor, No.5 Huafeng Road, Yonghe Economic Zone, Guangzhou Economic and Technological Development Zone, Guangdong Province Patentee after: Guangzhou sail Carbon Fiber Technology Co.,Ltd. Address before: 511356 2nd floor, No.5 Huafeng Road, Yonghe Economic Zone, Guangzhou Economic and Technological Development Zone, Guangdong Province Patentee before: ATA CARBON FIBER TECH. GUANGZHOU Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130626 |
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| CX01 | Expiry of patent term |