CN207646350U - A kind of pre-oxidation furnace - Google Patents
A kind of pre-oxidation furnace Download PDFInfo
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- CN207646350U CN207646350U CN201721711367.XU CN201721711367U CN207646350U CN 207646350 U CN207646350 U CN 207646350U CN 201721711367 U CN201721711367 U CN 201721711367U CN 207646350 U CN207646350 U CN 207646350U
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- oxidation
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Abstract
This application discloses a kind of pre-oxidation furnace, including furnace body and heating circulation system, it is equipped with furnace chamber in the furnace body, the furnace chamber is communicated with air inlet and exhaust outlet；The heating circulation system includes circulation air path, heater and circulating fan, the heater and circulating fan are arranged in the circulation air path, the circulation air path both ends are respectively communicated with air inlet and the exhaust outlet, the air inlet is equipped with air-distribution device, and air-guiding hole is uniformly provided on the air-distribution device.Pre-oxidation furnace provided by the present application, the hot wind of heated device heating is sent by circulating fan drum to air inlet, and entered in furnace chamber by the air-distribution device of air inlet, due to being uniformly provided with air-guiding hole on air-distribution device, hot wind can be evenly distributed along the height and width direction of furnace chamber, make wind even into and be distributed in furnace chamber, the furnace chamber temperature on same cross section can be made to be evenly distributed, to help to improve the quality of carbon fiber product.
Description
Technical field
The utility model belongs to carbon fibre producing facility technical field, and in particular to a kind of pre-oxidation furnace.
Background technology
Carbon fiber is a series of novel carbon materials of the phosphorus content that is transformed after heat treatments of organic fiber 90% or more
Material.Carbon fiber not only has a series of excellent property such as high strength and stiffness, high conductivity, high temperature high voltage resistant, anticorrosive
Can, also have the characteristics that the flexibility of fiber and braiding property, thus carbon fiber is frequently as the reinforcement of advanced composite material, in aviation
There is irreplaceable role in the industrial circles such as space flight, military affairs, civil construction, communications and transportation.
Carbon fiber preparation process includes mainly the flows such as production carbon fibre precursor, pre-oxidation and carbonization, influences carbon fiber
The factor of energy is numerous, and each production procedure all may have large effect to the quality of carbon fiber.Wherein, pre-oxidation treatment
It is an important link of carbon fiber production, and restricts the bottleneck of production.Pre-oxidation refers to carbon fibre precursor to be needed before carbonization
The process that pass through pre-oxidation is known as stabilizing in asphaltic base.In carbon fiber preoxidation process, precursor is in certain temperature
In air, tension appropriate is given, strand is made to become by the complicated chemistry such as a series of cyclisation, crosslinking, dehydrogenation, oxidation
Change, heat resistance, flame resistance and the electric conductivity of carbon fibre precursor is made to increase.
Currently, the pre-oxidizing the stage in carbon fiber preparation process is based on continuous production.Pre-oxidation furnace is carbon fiber master
The pre-oxidation equipment wanted mainly includes heating part and air-supply and air exhaust part, and carbon fiber Pre oxidation range is about
At 200 DEG C~300 DEG C, air-supply and air draft are to realize the necessary condition of pre-oxidation, and heating air can be made to have flowing uniform
Temperature field, keep heating temperature in stove uniform.But existing pre-oxidation furnace has that furnace air is unevenly distributed, and leads
Cause the temperature control of production process inconvenient, to keep production unstable, carbon fiber product it is of poor quality.
Utility model content
In view of the above-mentioned problems of the prior art, the purpose of this utility model is to provide a kind of pre-oxidation furnaces, in cloth
Be uniformly provided with air-guiding hole on wind apparatus, hot wind can be evenly distributed along the height and width direction of furnace chamber, make wind even into and point
Cloth can make the furnace chamber temperature on same cross section be evenly distributed in furnace chamber, to help to improve the matter of carbon fiber product
Amount.
The technical scheme that the utility model is provided is as follows：
A kind of pre-oxidation furnace, including furnace body and heating circulation system,
Furnace chamber is equipped in the furnace body, the furnace chamber is communicated with air inlet and exhaust outlet；
The heating circulation system includes circulation air path, heater and circulating fan, and the heater and circulating fan are set
It sets in the circulation air path, the circulation air path both ends are respectively communicated with air inlet and the exhaust outlet, are set on the air inlet
There is air-distribution device, air-guiding hole is uniformly provided on the air-distribution device.
Further, the air-distribution device is in 5 °~15 ° of angle with furnace body transverse direction, and makes the cycle of air inlet
The width in air duct, from large to small along the flow direction of wind.
Further, the heating circulation system includes the first heating circulation system and the second heating circulation system, described
First heating circulation system is arranged with second heating circulation system along the furnace body length direction；
The furnace chamber includes the first furnace chamber and the second furnace chamber, and first furnace chamber and second furnace chamber are long along the furnace body
Spend direction arrangement, first heating circulation system is connected to the air inlet of first furnace chamber, second heat cycles and
The air inlet of second furnace chamber is connected to.
Further, the air inlet on first furnace chamber is provided close to one end of second furnace chamber, and described
The air inlet on second furnace chamber is provided close to one end of first furnace chamber.
Further, the wind-guiding pore diameter size is 10mm~16mm.
Further, the furnace cavity bottom is equipped with deflector roll along the furnace body length direction, and the deflector roll is for conveying carbon fiber
Tie up product.
Further, the deflector roll includes organic frame, drive roll and driven voller, and the drive roll and the driven voller are installed
In the rack, driving mechanism is connected on the drive roll.
Further, the velocity of rotation of the deflector roll is adjustable.
Further, the bearing of the deflector roll uses high temperature resistant bearing.
Further, the exhaust outlet is equipped with air purifier.
Pre-oxidation furnace provided by the utility model is equipped with air-distribution device, air-distribution device on the air inlet blown to furnace chamber
On be uniformly provided with air-guiding hole, the hot wind of heated device heating is sent by circulating fan drum to air inlet, and passes through air inlet
Air-distribution device enters in furnace chamber, due to being uniformly provided with air-guiding hole on air-distribution device, can along furnace chamber height and width direction it is uniform
Distribute hot wind, make wind even into and be distributed in furnace chamber, the setting of air-distribution device can ensure that in furnace chamber to be not in air gas
Dead zone is flowed, the furnace chamber temperature on same cross section can be made to be evenly distributed, to help to improve the quality of carbon fiber product.
Description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments described in application, for those of ordinary skill in the art, without creative efforts,
Other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram for the pre-oxidation furnace that the embodiments of the present invention provide.
Reference sign：Furnace body 1；Furnace chamber 2；First furnace chamber 201；Second furnace chamber 202；Circulation air path 3；Heater 4；It follows
Ring wind turbine 5；Air-distribution device 6；First heating circulation system 7；Second heating circulation system 8；Deflector roll 9；Drive roll 901；Driven voller
902；Carbon fiber product 10.
Specific implementation mode
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in example is applied, technical solutions in the embodiments of the present application is clearly and completely described, it is clear that described implementation
Example is merely a part but not all of the embodiments of the present application.Based on the embodiment in the application, this field is common
The every other embodiment that technical staff is obtained without making creative work should all belong to the application protection
Range.
Firstly the need of explanation, " length direction of furnace body " described herein refers to be pre-oxidized in furnace body 1
The direction that carbon fiber conveys in journey；" transverse direction " and " cross-sectional direction " of furnace body 1, refers both to carbon fiber product 10 in vertical furnace body 1
Transporting direction.In the application, " burner " refers to that furnace body 1 exports one end of carbon fiber, and " stove tail " refers to 1 carbon fiber of furnace body
One end of entrance.
As shown in Figure 1, a kind of pre-oxidation furnace provided in this embodiment, including furnace body 1 and heating circulation system, the furnace body
Furnace chamber 2 is equipped in 1, the furnace chamber 2 is communicated with air inlet and exhaust outlet；The heating circulation system includes circulation air path 3, heating
Device 4 and circulating fan 5, the heater 4 and circulating fan 5 are arranged in the circulation air path 3,3 both ends of the circulation air path
It is respectively communicated with air inlet and the exhaust outlet, the air inlet is equipped with air-distribution device 6, is uniformly provided on the air-distribution device 6
Air-guiding hole.
Pre-oxidation furnace provided in this embodiment is equipped with air-distribution device 6, air-distribution device 6 on the air inlet blown to furnace chamber 2
On be uniformly provided with air-guiding hole, the hot wind that heated device 4 heats is sent by the drum of circulating fan 5 to air inlet, and passes through air inlet
Air-distribution device 6 enter furnace chamber 2 in, height that can be along furnace chamber 2 due to being uniformly provided with air-guiding hole on air-distribution device 6 and width side
To hot wind is evenly distributed, make wind even into and be distributed in furnace chamber 2, the setting of air-distribution device 6 can ensure that in furnace chamber 2 to go out
Existing air draught dead zone, can make uniformity of temperature profile in the furnace chamber 2 on same cross section, to help to improve carbon fiber product
10 quality.
The pre-oxidation furnace provides the hot wind for being parallel to carbon fiber layer into furnace chamber 2, is suitable for the carbon fibers such as production felt class, dry goods
Tie up product 10.Specifically, furnace chamber 2 is arranged in juxtaposition with circulation air path 3 along 1 length direction of furnace body, air inlet and exhaust outlet distinguish cloth
It sets at the both ends of furnace chamber 2.The hot wind that heater 4 heats is sent through the drum of circulating fan 5 to air inlet, and is filled by the cloth wind of air inlet
It sets 6 distribution to enter in furnace chamber 2, and goes out to flow and be discharged by exhaust outlet to exhaust outlet in furnace chamber 2, the hot wind of discharge enters cycle
Air duct 3 carries out concurrent heating using heater 4, is recycled into circulating fan 5.It is produced with carbon fiber flow direction of the wind in furnace chamber 2
The transporting direction of product 10, the two can be opposite, can also be identical.
Preferably, the air-distribution device 6 and the furnace body 1 are in laterally 5 °~15 ° of angle, and make the cycle of air inlet
The width in air duct 3, from large to small along the flow direction of wind.Air-distribution device 6 and the angle of furnace body transverse direction are denoted as α, as shown in Figure 1,
Be conducive to hot wind in this way by circulation air path 3 to be entered in furnace chamber 2.The specific wind-guiding pore diameter size is 10mm~16mm.
Wherein, the heating circulation system includes the first heating circulation system 7 and the second heating circulation system 8, and described the
One heating circulation system 7 is arranged with second heating circulation system 8 along 1 length direction of the furnace body；The furnace chamber 2 includes the
One furnace chamber 201 and the second furnace chamber 202, first furnace chamber 201 and second furnace chamber 202 are along 1 length direction cloth of the furnace body
Set, first heating circulation system 7 is connected to the air inlet of first furnace chamber 201, second heat cycles with it is described
The air inlet of second furnace chamber 202 is connected to.Carbon fiber is introduced into the first furnace chamber 201 and carries out heating reaction, subsequently into the second furnace chamber
202 and continue heating reaction.
First heating circulation system 7 is identical as the structure of the second heating circulation system 8, and the first heating circulation system 7 includes
First circulation air duct, primary heater and first circulation wind turbine, the second heating circulation system 8 include second circulation air duct, second
Heater and second circulation wind turbine；First furnace chamber 201 is identical as the structure of the second furnace chamber 202, on the air inlet of the first furnace chamber 201
Equipped with the first air-distribution device, the air inlet of the second furnace chamber 202 is equipped with the second air-distribution device.Hot wind is in the first furnace chamber 201
Flow direction and flow direction of the hot wind in the second furnace chamber 202, may be the same or different.
Pre-oxidation furnace provided in this embodiment includes two independent heating circulation systems, shortens hot wind in furnace chamber 2
The distance of cycle reduces the temperature difference of burner and stove tail in furnace body 1, is conducive to improve product quality.
Specifically, the air inlet on first furnace chamber 201 is provided close to one end of second furnace chamber 202, and
The air inlet on second furnace chamber 202 is provided close to one end of first furnace chamber 201.That is, because first
Furnace chamber 201 and the second furnace chamber 202 are arranged along the length direction of furnace body 1, therefore the air inlet of the first furnace chamber 201 and the second furnace chamber 202
Air inlet it is close, be distributed in the middle part of furnace body 1, the hot wind of the first heating circulation system 7 is from the air inlet on the first furnace chamber 201
Mouth enters, and is gone out by stove last row, and the hot wind of the second heating circulation system 8 enters from the air inlet on the second furnace chamber 202, and by stove
Head discharge.
In the present embodiment, 2 bottom of the furnace chamber is equipped with deflector roll 9 along 1 length direction of the furnace body, and the deflector roll 9 is for defeated
Send carbon fiber product 10.The pre-oxidation furnace conveys carbon fiber product 10 in preoxidation process, using deflector roll 9, makes product and stove
The position that the deflector roll 9 of 2 bottom of chamber contacts constantly changes, and can effectively avoid the supported deflector roll in product bottom 9 and blocks and occur anti-
Incomplete situation is answered, 10 pre-oxidation of carbon fiber product is abundant, and product quality is good.
Wherein, the deflector roll 9 includes organic frame, drive roll and driven voller, and the drive roll and the driven voller are mounted on
In the rack, driving mechanism is connected on the drive roll.Rack arranges that the quantity of drive roll can along 1 length direction of furnace body
It is determined according to the length of furnace body 1, at least provided with a drive roll, drive roll is distributed between driven voller, and each drive roll is equal
There are one driving mechanism, driving mechanism preferably uses variable-frequency motor, driving mechanism to drive drive roll rotation, drive carbon fiber for connection
Product 10 moves forward, and is exported from burner end, and the setting of driven voller can both reduce the resistance in 10 transmission process of carbon fiber product
Power, is convenient for the conveying of product, and is not required to increase the quantity of driving mechanism, simplifies the structure of pre-oxidation furnace, has saved cost.It is excellent
Choosing, the velocity of rotation of the deflector roll 9 is adjustable, and the bearing of the deflector roll 9 uses high temperature resistant bearing.
Further, the exhaust outlet is equipped with air purifier.Air purifier is used to purify from the anti-of the interior discharge of furnace chamber 2
Hot gas after answering, recycles again convenient for hot gas.Air purifier can also be set to the circulated air between exhaust outlet and heater 4
On road 3.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use this practicality new
Type.Various modifications to these embodiments will be apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest range consistent with features of novelty.
Claims (10)
1. a kind of pre-oxidation furnace, including furnace body (1) and heating circulation system, which is characterized in that
Furnace chamber (2) is equipped in the furnace body (1), the furnace chamber (2) is communicated with air inlet and exhaust outlet；
The heating circulation system includes circulation air path (3), heater (4) and circulating fan (5), the heater (4) and is followed
In the circulation air path (3), circulation air path (3) both ends are respectively communicated with air inlet and the air draft for ring wind turbine (5) setting
Mouthful, the air inlet is equipped with air-distribution device (6), and air-guiding hole is uniformly provided on the air-distribution device (6).
2. pre-oxidation furnace according to claim 1, which is characterized in that the air-distribution device (6) is lateral with the furnace body (1)
In 5 °~15 ° of angle, and make the width of the circulation air path (3) of air inlet, from large to small along the flow direction of wind.
3. pre-oxidation furnace according to claim 1, which is characterized in that the heating circulation system includes the first heat cycles
System (7) and the second heating circulation system (8), first heating circulation system (7) and second heating circulation system (8)
It is arranged along the furnace body (1) length direction；
The furnace chamber (2) includes the first furnace chamber (201) and the second furnace chamber (202), first furnace chamber (201) and second stove
Chamber (202) is along the furnace body (1) length direction arrangement, first heating circulation system (7) and first furnace chamber (201)
Air inlet is connected to, and second heat cycles are connected to the air inlet of second furnace chamber (202).
4. pre-oxidation furnace according to claim 3, which is characterized in that the air inlet on first furnace chamber (201)
Be provided close to one end of second furnace chamber (202), and the air inlet on second furnace chamber (202) be provided close to it is described
One end of first furnace chamber (201).
5. pre-oxidation furnace according to claim 1, which is characterized in that the wind-guiding pore diameter size is 10mm~16mm.
6. pre-oxidation furnace according to claim 1, which is characterized in that furnace chamber (2) bottom is along the furnace body (1) length
Direction is equipped with deflector roll (9), and the deflector roll (9) is for conveying carbon fiber product.
7. pre-oxidation furnace according to claim 6, which is characterized in that the deflector roll (9) include organic frame, drive roll and from
Dynamic roller, the drive roll and the driven voller are mounted in the rack, and driving mechanism is connected on the drive roll.
8. pre-oxidation furnace according to claim 6, which is characterized in that the velocity of rotation of the deflector roll (9) is adjustable.
9. pre-oxidation furnace according to claim 6, which is characterized in that the bearing of the deflector roll (9) uses high temperature resistant bearing.
10. pre-oxidation furnace according to claim 1, which is characterized in that the exhaust outlet is equipped with air purifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721711367.XU CN207646350U (en) | 2017-12-11 | 2017-12-11 | A kind of pre-oxidation furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721711367.XU CN207646350U (en) | 2017-12-11 | 2017-12-11 | A kind of pre-oxidation furnace |
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| Publication Number | Publication Date |
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| CN207646350U true CN207646350U (en) | 2018-07-24 |
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ID=62879776
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| CN201721711367.XU Active CN207646350U (en) | 2017-12-11 | 2017-12-11 | A kind of pre-oxidation furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111394835A (en) * | 2020-05-12 | 2020-07-10 | 天华化工机械及自动化研究设计院有限公司 | Carbon fiber oxidation furnace |
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2017
- 2017-12-11 CN CN201721711367.XU patent/CN207646350U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111394835A (en) * | 2020-05-12 | 2020-07-10 | 天华化工机械及自动化研究设计院有限公司 | Carbon fiber oxidation furnace |
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| CP01 | Change in the name or title of a patent holder |
Address after: 410118 Dingli science and Technology Park, Muyun Economic Development Zone, Tianxin District, Changsha City, Hunan Province Patentee after: Hunan Dingli Technology Co.,Ltd. Address before: 410118 Dingli science and Technology Park, Muyun Economic Development Zone, Tianxin District, Changsha City, Hunan Province Patentee before: ADVANCED CORPORATION FOR MATERIALS & EQUIPMENTS Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |