CN106521711A - Horizontal direct-current resistance type continuous ultrahigh temperature graphitizing furnace - Google Patents
Horizontal direct-current resistance type continuous ultrahigh temperature graphitizing furnace Download PDFInfo
- Publication number
- CN106521711A CN106521711A CN201610979298.4A CN201610979298A CN106521711A CN 106521711 A CN106521711 A CN 106521711A CN 201610979298 A CN201610979298 A CN 201610979298A CN 106521711 A CN106521711 A CN 106521711A
- Authority
- CN
- China
- Prior art keywords
- graphite
- heater
- carbon black
- furnace
- graphitizing furnace
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 68
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 56
- 239000010439 graphite Substances 0.000 claims abstract description 56
- 239000006229 carbon black Substances 0.000 claims abstract description 23
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052802 copper Inorganic materials 0.000 claims abstract description 12
- 239000010949 copper Substances 0.000 claims abstract description 12
- 238000000462 isostatic pressing Methods 0.000 claims abstract description 5
- 239000012774 insulation material Substances 0.000 claims description 14
- 238000005087 graphitization Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 abstract 6
- 239000011810 insulating material Substances 0.000 abstract 3
- 238000001816 cooling Methods 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 description 12
- 238000009413 insulation Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- CREMABGTGYGIQB-UHFFFAOYSA-N carbon carbon Chemical compound C.C CREMABGTGYGIQB-UHFFFAOYSA-N 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
- D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
Abstract
The invention discloses a horizontal direct-current resistance type continuous ultrahigh temperature graphitizing furnace. The heating working temperature is 2400-3000 DEG C. The horizontal direct-current resistance type continuous ultrahigh temperature graphitizing furnace comprises a graphite heating element, a protection sleeve, copper electrodes, a heat-insulating material, a furnace shell, a temperature-measuring hole, a hydraulic lifting mechanism and a support frame. The whole furnace body has a horizontal structure; the graphite heating element is composed of three sections of isostatic pressing formed graphite tubes in same length, which are in threaded connection with each other; water-cooling type copper electrodes are arranged at the two ends of the graphite heating element; a graphite sleeve is arranged on the exterior of the graphite heating element; carbon black is filled between the graphite sleeve and the furnace shell and is used as the heat-insulating material; the temperature-measuring hole is reserved in the furnace shell; the hydraulic lifting mechanism and the support frame are arranged under the whole furnace body. According to the invention, the carbon black is used as the heat-insulating material, so that the heat-insulating property is greatly increased and the heat loss is obviously reduced; the hydraulic lifting mechanism is arranged under the whole furnace body, so that the heat-insulating carbon black can be conveniently filled and replaced; the replacement of the easily damaged section of graphite heating element can be easily realized; the running cost can be obviously lowered; the industrialized application can be realized.
Description
Technical field
The invention belongs to Carbon fibe continuous filament yarn high temperature graphitization processing equipment field, and in particular to a kind of horizontal direct current
The continuous superhigh temperature graphitizing furnace of resistive, the graphitization of the critical process Carbon fibe in preparing for high-modulus Carbon fibe continuous filament yarn
Process.
Background technology
So-called high-modulus Carbon fibe refers to the Carbon fibe processed through 2000～3000 DEG C of high temperature graphitizations, because which has
The speciality such as excellent rigidity and dimensional stability, is particularly well-suited to the big space environment of day and night temperature, and using it as reinforcement can
To prepare the various structural types and functional material that thermal coefficient of expansion is zero, it has also become solve outer space structure and work(
Can the indispensable crucial reinforcement of composite.
And the preparation of high-modulus Carbon fibe be unable to do without the superhigh temperature graphitization equipment of continous way, current China's independent development
Superhigh temperature graphitizing furnace insulation material is usually used (such as Chinese invention patents such as PAN based carbon fiber felt bodies, carbon carbon composite
CN102797075A), but carbon felt content of ashes in the market is high, generally in more than 1000ppm, what hot stage overflowed
Volatile matter meeting heavy corrosion graphite heater, greatly reduces the service life of graphitizing furnace.And carbon black is through more than 2300 DEG C
Purity height (≤40ppm), high insulating effect after graphitization processing.But rarely have graphitizing furnace using high-purity carbon black as insulation at present
Material, traces it to its cause and is because that carbon black granularity big compared with little, dust, filling, replacing are difficult, cause which extensively should without extensive
With.
As can be seen here, the material of the superhigh temperature graphitizing furnace heat-insulation layer of current China's independent development is selected and structure design side
Face still suffers from weak point, causes its superhigh temperature service life short, can not still fully meet that to prepare high-modulus Carbon fibe continuously long
It is prepared by the requirement of silk, the production domesticization and industrialization for seriously having constrained China's high-modulus Carbon fibe.
The content of the invention
The technical problem to be solved is for above-mentioned deficiency of the prior art, there is provided a kind of horizontal direct current
The continuous superhigh temperature graphitizing furnace of resistance-type.The characteristics of equipment is, as insulation material, significantly can to carry high-purity carbon black
High heat preservation performance, significantly reduces thermal losses；The graphite that protection sleeve pipe is conveniently replaceable damage is installed outside graphite heater
Hot body；Hydraulicefficiency elevation structure is installed to be easy to filling and change insulation carbon black below body of heater；Three-stage screw connection structure is easy to
The replacing of rapid wear section graphite heater is realized, operating cost is significantly reduced, industrial applications are realized.
To solve above-mentioned technical problem, the technical solution used in the present invention is：
A kind of continuous superhigh temperature graphitizing furnace of horizontal direct current resistive, warmed operating temperature is at 2400～3000 DEG C.Including
Graphite heater, protection sleeve pipe, copper electrode, insulation material, furnace shell, thermometer hole, hydraulicefficiency elevation structure and bracing frame.Its feature exists
In：Whole body of heater is horizontal type structure, and graphite heater is threaded connection by three sections of isometric isostatic pressing formed graphite pipes and is constituted, in stone
The two ends of black heater are provided with water-cooled copper electrode, and graphite protective sleeve pipe is provided with outside graphite heater, and graphite is protected
High-purity carbon black is filled between protecting pipe and furnace shell as insulation material, thermometer hole is reserved with furnace shell, is installed below whole body of heater
There are hydraulicefficiency elevation structure and bracing frame.
The graphite heater is threaded connection by three sections of isometric isostatic pressing formed graphite pipes, and wherein interlude is work temperature
Area, up to 3000 DEG C, two sections are auxiliary warm area to temperature in front and back, and temperature is no less than 300mm up to 2600 DEG C, per segment length.
The copper electrode is for giving graphite heater galvanization itself.
The material of described protection sleeve pipe is isostatic pressed fine grained high purity graphite.
The insulation material is the high-purity carbon black through 2300 DEG C of graphitization processings.
The thermometer hole is that the graphite siphunculus by being embedded in carbon black heat-insulation layer is connected with graphite heater.
The hydraulicefficiency elevation structure and bracing frame be used to changing, it is carbon black-filled when incline body of heater.
The present invention has advantages below compared with prior art：
1st, using carbon black as insulation material, heat-insulating property not only can be greatly improved, significantly reduces thermal losses, together
When can significantly extend the service life of graphitizing furnace.2600 DEG C of continuous operating times can be stablized more than March.
2nd, the graphite heater that protection sleeve pipe is conveniently replaceable damage is installed outside the graphite heater；Install below body of heater
Hydraulicefficiency elevation structure and bracing frame are easy to filling and change insulation carbon black.
3rd, graphite heater is easily achieved the replacing of rapid wear section graphite heater using three-stage screw connection structure, significantly
Operating cost is reduced, industrial applications are realized.
Below by drawings and Examples, technical scheme is described in further detail.
Description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the body of heater and hydraulicefficiency elevation structure, support frame structure schematic diagram of the present invention.
Description of reference numerals:
| 1 furnace shell； | 2 thermometer holes； | 3 protection sleeve pipes； |
| 4 graphite heaters； | 5 insulation materials； | 6 copper electrodes； |
| 7 hydraulicefficiency elevation structures； | 8 bracing frames； |
Specific embodiment
Embodiment 1
As shown in figure 1, the present invention includes graphite heater 4, protection sleeve pipe 3, copper electrode 6, insulation material 5, furnace shell 1, survey
Warm hole 2, hydraulicefficiency elevation structure 7 and bracing frame 8.Whole body of heater is horizontal type structure, and graphite heater 4 is by three sections of isometric isostatic presseds
Graphite-pipe is threaded connection composition, is provided with water-cooled copper electrode 6 at the two ends of graphite heater 4, in graphite heater 4
Outside is provided with graphite protective sleeve pipe 3, fills high-purity carbon black as insulation material 5, stove between graphite protective sleeve pipe 3 and furnace shell 1
Thermometer hole 2 is reserved with shell 1, hydraulicefficiency elevation structure 7 and bracing frame 8 are installed below whole body of heater.
Graphite heater 4 is threaded connection by three sections of isometric isostatic pressing formed graphite pipes, and wherein interlude is operation temperature area,
Up to 3000 DEG C, two sections are auxiliary warm area to temperature in front and back, and temperature is up to 2600 DEG C, wherein 300mm is no less than per segment length.Copper electricity
Pole 6 is mainly used in giving graphite heater 4 galvanization itself.The material of protection sleeve pipe 3 is isostatic pressed fine grained high purity graphite.Insulation
Material 5 is the high-purity carbon black through 2300 DEG C of graphitization processings.
The present embodiment is a specific embodiment of the present invention, specially following steps：
Step 1：Line replacement is entered to the air in graphite heater and heat-insulation layer with high-purity argon gas first, each position in stove is treated
Oxygen content≤5ppm, during dew point≤- 40 DEG C, starts to give electricity intensification；
Step 2：Using the direct-fired form of resistance, graphite heater is integrally heated with the rate of heat addition of 5 DEG C/min
To 2600 DEG C, then it is incubated；
Step 3：Carbon fibe is entered into graphite muffle thorax from the left end of graphitizing furnace with the speed of 2m/min, through 2600
DEG C continuous processing, the Carbon fibe after process are left from right-hand member fire door, into lower one treatment process, with Carbon fiber prepared by this technique
Dimension modulus can be up to more than 600GPa, and continuous service life is up to more than March.
Step 4：When insulation carbon black is damaged to be needed to change, one end that hydraulicefficiency elevation structure lifts body of heater is enabled, carbon black is made
Thoroughly flow out from burner hearth, while also allowing for filling, the carbon black of closely knit renewal.
Embodiment 2
The present embodiment is a specific embodiment of the present invention, specially following steps：
The entirety of graphite heater will be heated to 2800 DEG C in step 2 in embodiment 1, be then incubated；With this technique system
Standby Carbon fibe modulus can be up to more than 800GPa, and continuous service life is up to more than January.When graphitizing furnace heater is damaged
After, it is only necessary to the part damaged in replacing three sections of Muffles, then can reactivate.
The above, is only presently preferred embodiments of the present invention, not the present invention is imposed any restrictions, every according to the present invention
Any simple modification, change and equivalent structure change that technical spirit is made to above example, still fall within skill of the present invention
In the protection domain of art scheme.
Claims (7)
1. the continuous superhigh temperature graphitizing furnace of a kind of horizontal direct current resistive, it is characterised in that：Including graphite heater (4), protection
Sleeve pipe (3), copper electrode (6), insulation material (5), furnace shell (1), thermometer hole (2), hydraulicefficiency elevation structure (7) and bracing frame (8), it is whole
Individual body of heater is horizontal type structure, and graphite heater (4) is threaded connection by three sections of isometric isostatic pressing formed graphite pipes and is constituted, in graphite
The two ends of heater (4) are provided with water-cooled copper electrode (6), outside graphite heater (4) are provided with graphite protective sleeve pipe
(3), carbon black-filled as insulation material (5) between graphite protective sleeve pipe (3) and furnace shell (1), furnace shell is reserved with thermometer hole on (1)
(2) hydraulicefficiency elevation structure (7) and bracing frame (8), are installed below whole body of heater, warmed operating temperature at 2400～3000 DEG C,.
2. the continuous superhigh temperature graphitizing furnace of a kind of horizontal direct current resistive according to claim 1, it is characterised in that：It is described
The interlude of graphite heater (4) is operation temperature area, and up to 3000 DEG C, two sections are auxiliary warm area to temperature in front and back, and temperature is reachable
2600 DEG C, 300mm is no less than per segment length.
3. the continuous superhigh temperature graphitizing furnace of a kind of horizontal direct current resistive according to claim 1, it is characterised in that：It is described
Copper electrode (6) is for giving graphite heater galvanization itself.
4. the continuous superhigh temperature graphitizing furnace of a kind of horizontal direct current resistive according to claim 1, it is characterised in that：It is described
Graphite protective sleeve pipe (3) material be isostatic pressed fine grained high purity graphite.
5. the continuous superhigh temperature graphitizing furnace of a kind of horizontal direct current resistive according to claim 1, it is characterised in that：It is described
Insulation material (5) is the high-purity carbon black through 2300 DEG C of graphitization processings.
6. the continuous superhigh temperature graphitizing furnace of a kind of horizontal direct current resistive according to claim 1, it is characterised in that：It is described
Thermometer hole (2) is connected with graphite heater (4) by the graphite siphunculus being embedded in carbon black insulation material (5).
7. the continuous superhigh temperature graphitizing furnace of a kind of horizontal direct current resistive according to claim 1, it is characterised in that：It is described
Hydraulicefficiency elevation structure (7) and bracing frame (8) for changing, it is carbon black-filled when incline body of heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610979298.4A CN106521711B (en) | 2016-11-08 | 2016-11-08 | A kind of continuous superhigh temperature graphitizing furnace of horizontal direct current resistive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610979298.4A CN106521711B (en) | 2016-11-08 | 2016-11-08 | A kind of continuous superhigh temperature graphitizing furnace of horizontal direct current resistive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106521711A true CN106521711A (en) | 2017-03-22 |
| CN106521711B CN106521711B (en) | 2018-10-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610979298.4A Active CN106521711B (en) | 2016-11-08 | 2016-11-08 | A kind of continuous superhigh temperature graphitizing furnace of horizontal direct current resistive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106521711B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110055621A (en) * | 2019-05-15 | 2019-07-26 | 西安富瑞达科技发展有限公司 | A kind of superhigh temperature graphitizing furnace |
| CN112408379A (en) * | 2020-10-22 | 2021-02-26 | 中钢集团新型材料（浙江）有限公司 | Temperature measuring tube arrangement method and temperature control method for isostatic pressing graphite production by Acheson furnace |
| CN112689689A (en) * | 2018-04-09 | 2021-04-20 | 万俊有限责任公司 | Furnace with a heat exchanger |
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| CN201497336U (en) * | 2009-07-30 | 2010-06-02 | 株洲红亚电热设备有限公司 | Horizontal type continuous high temperature graphitizing furnace |
| CN203021698U (en) * | 2012-09-06 | 2013-06-26 | 广州赛奥碳纤维技术有限公司 | Continuous graphitization superhigh-temperature tube furnace |
| CN104386682A (en) * | 2014-11-19 | 2015-03-04 | 宜宾天原集团股份有限公司 | Graphitization furnace and method for heat treatment of graphite powder by virtue of graphitization furnace |
| CN105036125A (en) * | 2015-09-08 | 2015-11-11 | 耿巨泉 | Lithium-battery negative electrode material graphitization furnace and graphitization technology |
| CN106498563A (en) * | 2016-11-08 | 2017-03-15 | 湖南大学 | The continuous superhigh temperature graphitizing furnace of one kind sensing auxiliary resistance formula |
-
2016
- 2016-11-08 CN CN201610979298.4A patent/CN106521711B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201497336U (en) * | 2009-07-30 | 2010-06-02 | 株洲红亚电热设备有限公司 | Horizontal type continuous high temperature graphitizing furnace |
| CN203021698U (en) * | 2012-09-06 | 2013-06-26 | 广州赛奥碳纤维技术有限公司 | Continuous graphitization superhigh-temperature tube furnace |
| CN104386682A (en) * | 2014-11-19 | 2015-03-04 | 宜宾天原集团股份有限公司 | Graphitization furnace and method for heat treatment of graphite powder by virtue of graphitization furnace |
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| CN106498563A (en) * | 2016-11-08 | 2017-03-15 | 湖南大学 | The continuous superhigh temperature graphitizing furnace of one kind sensing auxiliary resistance formula |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112689689A (en) * | 2018-04-09 | 2021-04-20 | 万俊有限责任公司 | Furnace with a heat exchanger |
| CN110055621A (en) * | 2019-05-15 | 2019-07-26 | 西安富瑞达科技发展有限公司 | A kind of superhigh temperature graphitizing furnace |
| CN112408379A (en) * | 2020-10-22 | 2021-02-26 | 中钢集团新型材料（浙江）有限公司 | Temperature measuring tube arrangement method and temperature control method for isostatic pressing graphite production by Acheson furnace |
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| Publication number | Publication date |
|---|---|
| CN106521711B (en) | 2018-10-19 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20171115 Address after: 410000 Hunan province Changsha Wenxuan High-tech Development Zone, Road No. 27 building 2202 room Yuyuan Lu Valley F1 Applicant after: HUNAN DONGYING CARBON MATERIAL TECHNOLOGY CO.,LTD. Address before: Yuelu District City, Hunan province 410082 Changsha Lushan Road No. 2 Applicant before: Hunan University |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Horizontal direct-current resistance type continuous ultrahigh temperature graphitizing furnace Effective date of registration: 20190731 Granted publication date: 20181019 Pledgee: Bank of Changsha Limited by Share Ltd. science and Technology Branch Pledgor: HUNAN DONGYING CARBON MATERIAL TECHNOLOGY CO.,LTD. Registration number: 2019430000072 |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room 2202, building F1, Lugu Yuyuan, No.27 Wenxuan Road, high tech Development Zone, Changsha City, Hunan Province Patentee after: Hunan Dongying Carbon Materials Technology Co.,Ltd. Address before: Room 2202, building F1, Lugu Yuyuan, No.27 Wenxuan Road, high tech Development Zone, Changsha City, Hunan Province Patentee before: HUNAN DONGYING CARBON MATERIAL TECHNOLOGY CO.,LTD. |
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| CP03 | Change of name, title or address |
Address after: 410000, No. 467 Xianjiahu West Road, Lugu Street, Xiangjiang New District, Changsha City, Hunan Province Patentee after: Hunan Dongying Carbon Materials Technology Co.,Ltd. Country or region after: China Address before: Room 2202, building F1, Lugu Yuyuan, No.27 Wenxuan Road, high tech Development Zone, Changsha City, Hunan Province Patentee before: Hunan Dongying Carbon Materials Technology Co.,Ltd. Country or region before: China |