CN201952535U - Pre-oxidation furnace for producing carbon fibers - Google Patents
Pre-oxidation furnace for producing carbon fibers Download PDFInfo
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- CN201952535U CN201952535U CN201020672103XU CN201020672103U CN201952535U CN 201952535 U CN201952535 U CN 201952535U CN 201020672103X U CN201020672103X U CN 201020672103XU CN 201020672103 U CN201020672103 U CN 201020672103U CN 201952535 U CN201952535 U CN 201952535U
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Abstract
A pre-oxidation furnace for producing carbon fibers is characterized in that two fiber passages (8) are arranged at the two ends of a furnace body (14), an air supply buffering cavity (5) and an air supply cavity (4) are arranged above a reaction cavity (6) inside the furnace body (14), perforated plates (13) are arranged between the reaction cavity (6) and the air supply buffering cavity (5) and between the air supply buffering cavity and the air supply cavity (4), an air discharging buffering cavity (9) and an air discharging cavity (10) are arranged below the reaction cavity (6), perforated plates (13) are arranged between the reaction cavity (6) and the air discharging buffering cavity (9) and between the air discharging buffering cavity (9) and the air discharging cavity (10), an air supply main pipe line (2) and air supply branch pipes (3) are arranged at the top of the furnace body (14), the air supply branch pipes (3) are connected with the air supply cavity (4), an inlet air sealing cavity (1) and an outlet air sealing cavity (7) respectively, an air discharging main pipe line (12) and air discharging branch pipes (11) are arranged at the bottom of the furnace body (14), and the air discharging branch pipes (11) are connected with the air discharging cavity (10), the inlet air sealing cavity (1) and the outlet air sealing cavity (7) respectively. The pre-oxidation furnace has the advantages of low energy consumption and even temperature field inside furnace cavities.
Description
Technical field
The utility model belongs to a kind of pre-oxidation furnace of producing carbon fiber.
Background technology
Carbon fiber is obtained after pre-oxidation, charing by raw fiber.The preparation of the production of carbon fiber, particularly high-performance carbon fibre, pre-oxidation occupies critical positions in the whole production link.Oxidizing process need guarantee the uniformity of whole oxidation furnace cavity temperature field, could guarantee the uniformity and the stability of carbon fiber quality like this.Existing pre-oxidation furnace adopts the resistance wire heater of external-heat more, resistive heater is arranged between the levels of each burner hearth of oxidation furnace, because resistance wire is arranged and spatially the limitation of distributing, and upward lower hearth heat conduction each other, cause its shortcoming power consumption high, heat radiation is inhomogeneous, causes the unbalanced of furnace chamber temperature field.
Summary of the invention
It is low that the purpose of this utility model provides a kind of energy consumption, and the furnace chamber temperature field produces the pre-oxidation furnace of carbon fiber uniformly.
The purpose of this utility model is to realize like this, it is made up of body of heater and fiber channel, two horizontal ends that it is characterized in that body of heater have fiber channel, inlet sealing gland chamber is arranged in the body of heater, outlet sealing gland chamber and reaction chamber, reaction chamber is between inlet sealing gland chamber and outlet sealing gland chamber, there is the air-supply cushion chamber reaction chamber top, between reaction chamber and the air-supply cushion chamber porous plate is arranged, on the air-supply cushion chamber wind pushing cavity is arranged, between air-supply cushion chamber and the wind pushing cavity porous plate is arranged, there is the air draft cushion chamber reaction chamber below, between reaction chamber and the air draft cushion chamber porous plate is arranged, the air draft chamber is arranged under the air draft cushion chamber, between air draft cushion chamber and the air draft chamber porous plate is arranged, at the body of heater top blast main road and blowpipe are arranged, the blast main road is connected with blowpipe, blowpipe and wind pushing cavity, inlet sealing gland chamber is connected respectively with outlet sealing gland chamber, at bottom of furnace body air draft trunk line and air draft arm is arranged, and the air draft trunk line is connected with the air draft arm, the air draft arm respectively with air draft chamber, inlet sealing gland chamber and export the sealing gland chamber and be connected.
Aforesaid porous plate has air vent, and the percent opening of air vent is 20-40%, diameter 3-5mm.
The most wind of circulating air in aforesaid blast main road carries out wind pushing cavity, small part enter the mouth sealing gland chamber and outlet sealing gland chamber.
The utility model adopts the hot air circulation heating, and hot blast any position in reaction cavity keeps flow velocity 1.5-2.0m/s.
Raw fiber carries out the pre-oxidation reaction through fiber channel turnover reaction chamber and back and forth operation therein.The circulating air that is heated to the fiber-reactive temperature enters inlet sealing gland chamber, wind pushing cavity and outlet sealing gland chamber respectively through blast main road and blowpipe, after entering wind pushing cavity, most of hot blast once cushioned, enter the air-supply cushion chamber through the porous plate uniform distribution again, enter reaction chamber through the porous plate uniform distribution again behind the secondary buffer, add to raw fiber and to carry reactor off-gas after the thermal response and distribute through porous plate again, entering the air draft cushion chamber downwards once cushions, enter air draft chamber secondary buffer through porous plate the 4th sub-distribution afterwards, at last by air draft arm and the discharging of air draft trunk line.An amount of hot blast enters inlet sealing gland chamber and outlet sealing gland chamber and enters air draft trunk line (12) discharging through bleeder downwards with the flow velocity of 1.5-2.0m/s, plays the effect that deadens furnace chamber and external environment.By air draft trunk line exhaust gas discharged a certain proportion of waste gas of externally draining in the system, replenish the new wind of corresponding proportion simultaneously, participate in circulation after the heating again.
In fire door inlet porting sealing gland chamber and outlet sealing gland chamber, avoid in the stove temperature Temperature Influence in external diffusion and ambient temperature change stove, guaranteed that the temperature in the cavity is even, consistent.The a certain proportion of reactor off-gas of discharging in the hot air circulation process, the new wind of additional corresponding proportion reacts required oxygen with assurance simultaneously.
The beneficial effects of the utility model are, cut apart by supply gas chamber, the cushion chamber of supplying gas, exhaust cushion chamber, discharge chamber and porous plate of setting, assurance enters consistent at the pressure at each position with the gas of discharging furnace chamber, thereby guarantees the flow speed stability of reaction chamber input and output gas, makes its temperature equalization.
Description of drawings
Fig. 1 is the pre-oxidation furnace schematic diagram that the utility model is produced carbon fiber.
Fig. 2 is a porous plate schematic diagram in the utility model pre-oxidation furnace.
As shown in the figure, the 1st, inlet sealing gland chamber, the 2nd, blast main road, the 3rd, blowpipe, the 4th, wind pushing cavity, the 5th, air-supply cushion chamber, the 6th, reaction chamber, the 7th, outlet sealing gland chamber, the 8th, fiber channel, the 9th, air draft cushion chamber, the 10th, air draft chamber, the 11st, air draft arm, the 12nd, the air draft trunk line, the 13rd, porous plate, the 14th, body of heater, the 15th, air vent.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described further.
Embodiment 1:
Two horizontal ends of body of heater 14 have fiber channel 8, inlet sealing gland chamber 1 is arranged in the body of heater 14, outlet sealing gland chamber 7 and reaction chamber 6, reaction chamber 6 is between inlet sealing gland chamber 1 and outlet sealing gland chamber 7, there is air-supply cushion chamber 5 reaction chamber 6 tops, between reaction chamber 6 and the air-supply cushion chamber 5 porous plate 13 is arranged, on the air-supply cushion chamber 5 wind pushing cavity 4 is arranged, between air-supply cushion chamber 5 and the wind pushing cavity 4 porous plate 13 is arranged, there is air draft cushion chamber 9 the reaction chamber below, between reaction chamber 6 and the air draft cushion chamber 9 porous plate 13 is arranged, air draft chamber 10 is arranged under the air draft cushion chamber 9, between air draft cushion chamber 9 and the air draft chamber 10 porous plate 13 is arranged, at body of heater 14 tops blast main road 2 and blowpipe 3 are arranged, blast main road 2 is connected with blowpipe 3, blowpipe 3 and wind pushing cavity 4, inlet sealing gland chamber 1 is connected respectively with outlet sealing gland 7 chambeies, in body of heater 14 bottoms air draft trunk line 12 and air draft arm 11 is arranged, and air draft trunk line 12 is connected with air draft arm 11, air draft arm 11 respectively with air draft chamber 10, inlet sealing gland chamber 1 and export sealing gland chamber 7 and be connected.Porous plate 13 has air vent 15.
Raw fiber carries out the pre-oxidation reaction through fiber channel (8) turnover reaction chamber (6) and back and forth operation therein.The circulating air that is heated to the fiber-reactive temperature enters inlet sealing gland chamber (1) respectively through blast main road (2) and blowpipe (3), wind pushing cavity (4) and outlet sealing gland chamber (7), most of hot blast enters wind pushing cavity (4) back and is once cushioned, enter air-supply cushion chamber (5) through porous plate (13) uniform distribution again, enter reaction chamber (6) through the porous plate uniform distribution again behind the secondary buffer, add to raw fiber and to carry reactor off-gas after the thermal response and distribute through porous plate again, entering air draft cushion chamber (9) downwards once cushions, enter air draft chamber (10) secondary buffer through porous plate the 4th sub-distribution afterwards, at last by air draft arm (11) and air draft trunk line (12) discharging.A spot of hot blast enters inlet sealing gland chamber (1) and outlet sealing gland chamber (7) enters air draft trunk line (12) discharging through bleeder downwards with the flow velocity of 1.5-2.0m/s, plays the effect of deadening furnace chamber and external environment.By air draft trunk line (12) exhaust gas discharged a certain proportion of waste gas of externally draining in the system, replenish the new wind of corresponding proportion simultaneously, participate in circulation after the heating again.Hot blast any position in reaction cavity keeps flow velocity 1.5-2.0m/s.
Claims (3)
1. pre-oxidation furnace of producing carbon fiber, it is made up of body of heater (14) and fiber channel (8), two horizontal ends that it is characterized in that body of heater (14) have fiber channel (8), inlet sealing gland chamber (1) is arranged in the body of heater (14), outlet sealing gland chamber (7) and reaction chamber (6), reaction chamber (6) is positioned between inlet sealing gland chamber (1) and the outlet sealing gland chamber (7), there is air-supply cushion chamber (5) reaction chamber (6) top, between reaction chamber (6) and the air-supply cushion chamber (5) porous plate (13) is arranged, on the air-supply cushion chamber (5) wind pushing cavity (4) is arranged, between air-supply cushion chamber (5) and the wind pushing cavity (4) porous plate (13) is arranged, there is air draft cushion chamber (9) reaction chamber (6) below, between reaction chamber (6) and the air draft cushion chamber (9) porous plate (13) is arranged, air draft chamber (10) is arranged under the air draft cushion chamber (9), between air draft cushion chamber (9) and air draft chamber (10) porous plate (13) is arranged, at body of heater (14) top blast main road (2) and blowpipe (3) are arranged, blast main road (2) is connected with blowpipe (3), blowpipe (3) and wind pushing cavity (4), inlet sealing gland chamber (1) is connected respectively with outlet sealing gland (7) chamber, in body of heater (14) bottom air draft trunk line (12) and air draft arm (11) are arranged, air draft trunk line (12) is connected with air draft arm (11), air draft arm (11) respectively with air draft chamber (10), inlet sealing gland chamber (1) and export sealing gland chamber (7) and be connected.
2. a kind of pre-oxidation furnace of producing carbon fiber as claimed in claim 1 is characterized in that described porous plate (13) has air vent (15).
3. a kind of pre-oxidation furnace of producing carbon fiber as claimed in claim 1, the percent opening that it is characterized in that described air vent is 20-40%, diameter 3-5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020672103XU CN201952535U (en) | 2010-12-22 | 2010-12-22 | Pre-oxidation furnace for producing carbon fibers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020672103XU CN201952535U (en) | 2010-12-22 | 2010-12-22 | Pre-oxidation furnace for producing carbon fibers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201952535U true CN201952535U (en) | 2011-08-31 |
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ID=44496656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020672103XU Expired - Lifetime CN201952535U (en) | 2010-12-22 | 2010-12-22 | Pre-oxidation furnace for producing carbon fibers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201952535U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102660810A (en) * | 2012-03-21 | 2012-09-12 | 上海联川自动化科技有限公司 | Fireproof layers of carbon fiber oxidation furnace |
| CN104213254A (en) * | 2014-08-08 | 2014-12-17 | 中国科学院宁波材料技术与工程研究所 | Device to improve temperature field uniformity of pre-oxidation furnace |
| CN106337218A (en) * | 2016-11-22 | 2017-01-18 | 郑州搜趣信息技术有限公司 | Multi-airduct carbon fiber pre-oxidation furnace |
| CN106702537A (en) * | 2016-12-21 | 2017-05-24 | 湖南顶立科技有限公司 | Air distributor and preoxidation furnace hot air circulating system |
| CN107164843A (en) * | 2017-05-31 | 2017-09-15 | 南通不二环境科技有限公司 | A kind of carbon fiber pre-oxidation furnace |
| CN111485292A (en) * | 2019-01-28 | 2020-08-04 | 株式会社Ｓｎｔ | Carbon fiber precursor stabilization device |
-
2010
- 2010-12-22 CN CN201020672103XU patent/CN201952535U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102660810A (en) * | 2012-03-21 | 2012-09-12 | 上海联川自动化科技有限公司 | Fireproof layers of carbon fiber oxidation furnace |
| CN102660810B (en) * | 2012-03-21 | 2014-04-09 | 上海联川自动化科技有限公司 | Fireproof layers of carbon fiber oxidation furnace |
| CN104213254A (en) * | 2014-08-08 | 2014-12-17 | 中国科学院宁波材料技术与工程研究所 | Device to improve temperature field uniformity of pre-oxidation furnace |
| CN106337218A (en) * | 2016-11-22 | 2017-01-18 | 郑州搜趣信息技术有限公司 | Multi-airduct carbon fiber pre-oxidation furnace |
| CN106702537A (en) * | 2016-12-21 | 2017-05-24 | 湖南顶立科技有限公司 | Air distributor and preoxidation furnace hot air circulating system |
| CN106702537B (en) * | 2016-12-21 | 2019-03-29 | 湖南顶立科技有限公司 | Ventilation terminal and pre-oxidation furnace hot air circulating system |
| CN107164843A (en) * | 2017-05-31 | 2017-09-15 | 南通不二环境科技有限公司 | A kind of carbon fiber pre-oxidation furnace |
| CN111485292A (en) * | 2019-01-28 | 2020-08-04 | 株式会社Ｓｎｔ | Carbon fiber precursor stabilization device |
| CN111485292B (en) * | 2019-01-28 | 2022-04-29 | 株式会社Snt | Carbon fiber precursor stabilization device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110831 |