CN206521543U - A kind of high temperature cabonization device for being used to produce carbon fiber - Google Patents
A kind of high temperature cabonization device for being used to produce carbon fiber Download PDFInfo
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- CN206521543U CN206521543U CN201621151460.5U CN201621151460U CN206521543U CN 206521543 U CN206521543 U CN 206521543U CN 201621151460 U CN201621151460 U CN 201621151460U CN 206521543 U CN206521543 U CN 206521543U
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- heater
- high temperature
- temperature
- burner hearth
- warm area
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Abstract
The utility model discloses a kind of high temperature cabonization device for being used to produce carbon fiber, belong to carbon fiber production technical field.The high temperature cabonization device provided by the utility model for being used to produce carbon fiber; including body of heater, the sealing device that is connected to body of heater two ends, the gas extraction system connected with the burner hearth of body of heater and protection air feed system; the cooling chamber that the tow port of export of body of heater is connected by non-contacting seal device, and the temp detecting controller connected respectively by the temperature sensor and heater of temperature sensing circuit and temperature-control circuit and body of heater are additionally included in simultaneously.Low-temperature carbonization device provided by the utility model, cooling chamber is provided with the body of heater port of export, can effectively reduce the temperature that tow involves body of heater, prevents the high temperature tow by carbonization from, by the dioxygen oxidation in air, improving the quality of carbon fiber.Meanwhile, the utility model is mounted with that temperature sensor can be monitored and control to the temperature in body of heater in real time in furnace interior.
Description
Technical field
The utility model is related to a kind of high temperature cabonization device for being used to produce carbon fiber, belongs to carbon fiber production technology neck
Domain.
Background technology
In the production process of carbon fiber, precursor needs to be pre-oxidized and the process such as be carbonized is so that its molecular structure occurs
Change forms carbon fiber structural.Therefore, pre-oxidation and carbonization technique are the critical process links in carbon fiber production process.Its
In, the carbonization technique of carbon fiber is divided into low-temperature carbonization and high temperature cabonization again.Different carbon are needed to use in different carbonation stages
Change equipment to carry out.Wherein, high temperature cabonization process is that polyacrylonitrile fibril finally completes thermal decomposition, generates the mistake of high-quality carbon fiber
Journey, the temperature range of high temperature cabonization process is general between 800~1600 DEG C.During high temperature cabonization, polyacrylonitrile fibril
The decomposition of final stage is completed, with HCN or N2Mode release remnants nitrogen, obtain phosphorus content more than 95%, have
There is turbostratic graphite packed structures carbon fiber.High temperature cabonization often progressively segmentation heating, needs to make using inert gas during carbonization
For protection gas.The materials such as waste gas and tar can be produced in carbonisation, it is necessary to exclude, to prevent from causing dirt to carbon fiber
Dye.Simultaneously as carbon fiber passes through the carbonization of higher temperature in carbonizing plant, when the spinning by carbonization is drawn from carbonizing plant
When stretching, carried enough very easily by the dioxygen oxidation in air if temperature is not dropped to, so as to cause the matter of carbon fiber
Amount declines.Lack the cooling link of carbonization spinning outlet section in existing high temperature cabonization equipment, cause spinning to be oxidized easily, into
Product it is second-rate.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of high temperature cabonization device for being used to produce carbon fiber,
The technical scheme taken is as follows：
A kind of high temperature cabonization device for being used to produce carbon fiber, including body of heater 1, the sealing device for being connected to the two ends of body of heater 1
7th, the gas extraction system 4 and protection air feed system 5 connected with the burner hearth 11 of body of heater 1, and it is additionally included in the tow outlet of body of heater 1
The cooling chamber 2 that end is connected by non-contacting seal device 7, and pass through temperature sensing circuit 31 and temperature-control circuit respectively
32 temp detecting controllers 3 being connected with the temperature sensor 16 and heater 13 of body of heater 1.It is provided with the end of burner hearth 11
Differential manometer 19, to be detected to the pressure in burner hearth 11, prevents pressure from causing burner hearth and insulation material to aoxidize when being less than 20Pa,
Loss of function.
Preferably, body of heater 1 includes burner hearth 11, is wrapped in the inner thermal insulating layer 12 in the outside of burner hearth 11, is fixed on inner thermal insulating layer 12
Heater 13 and temperature sensor 16 between burner hearth 11, be fixed on the outside of inner thermal insulating layer 12 external thermal insulation 14 and
The outer rigid housing body 15 outside external thermal insulation 14 is fixed on, cooling sandwith layer 18 is additionally provided with outer rigid housing body 15；In burner hearth 11
Between be provided with waste gas outlet 17, in order to which the waste gas in production process is discharged away.Differential manometer 19 is provided with the end of burner hearth 11, with
It is easy to detect the pressure in burner hearth 11, so that so that the pressure in burner hearth 11 meets process requirements when processing.
Preferably, burner hearth 11 from the import of tow 8 to outlet be independently arranged successively the first warm area, the second warm area, three-temperature-zone,
Four-temperature region, the 5th warm area, the 6th warm area, the 7th warm area and the 8th warm area；Wherein, the first heating region to the 6th warm area temperature
Gradually increase, the 7th warm area temperature reduction, the 8th warm area is transition warm area.
It is highly preferred that waste gas outlet 17 is located at intermediate side or the bottom of burner hearth 11, to prevent condensate exhaust gases from being made to spinning
Into pollution.
It is highly preferred that gas extraction system 4 includes the wind pipe 41 that is connected with waste gas outlet 17, with wind pipe 41 and some
The main exhaust duct 42 of gas sampling cover connection, the exhaust outlet 45 connected with main exhaust duct 42.
Preferably, sealing device 7 includes the first sealing device 71 being tightly connected with the tow entrance point of body of heater 1, connection
The tow port of export of body of heater 1 and the second sealing device 72 of the import of cooling chamber 2, and it is connected to the 3rd sealing of the outlet of cooling chamber 2
Device 73.
It is highly preferred that protection air feed system 5 will protect gas supply close by the pipeline provided with flowmeter and control valve 51
Seal apparatus 7 and/or protection gas heater 6.
It is highly preferred that protection air feed system 5 passes through low-temperature protection feed channel and the second sealing device 72 and the 3rd sealing
Device 73；It is connected by pipeline with protection gas heater 6, protection gas heater 6 passes through high temperature protection feed channel and first
Sealing device 71 and the connection of the end of burner hearth 11.
Preferably, cooling chamber 2 includes the water inlet 22 and delivery port 21 being connected with cooling water supply system, and positioned at silk
The interlayer 23 connected on the outside of beam introduction pipe with water inlet 22 and delivery port 21.
Preferably, in addition to apparatus for supplying cool water 9, apparatus for supplying cool water 9 is connected by water inlet 22 with cooling chamber 2
It is logical, it is right respectively to realize by controlling the water-cooling sandwich 18 of turnover provided with the water cooled electrode being connected with temp detecting controller 3
The different warm areas of burner hearth 11 are cooled down.
The beneficial effect that the utility model is obtained：
Low-temperature carbonization device provided by the utility model, cooling chamber is provided with the body of heater port of export, can effectively be reduced
Tow involves the temperature of body of heater, prevents the high temperature tow by carbonization from, by the dioxygen oxidation in air, improving the matter of carbon fiber
Amount.Meanwhile, the utility model is mounted with that temperature sensor can be monitored and control to the temperature in body of heater in real time in furnace interior
System.
The utility model fully reduces height by way of more piece heating warm area is engaged with transition warm area and cooling chamber
In warm carbonisation the problem of tow, to prevent tow oxidation by air.
Brief description of the drawings
Fig. 1 is the positive structure diagram (oven body part section view) of high temperature cabonization device of the present utility model.
In figure：1, body of heater；2, cooling chamber；3, temp detecting controller；4, gas extraction system；5, protect air feed system；
6, protect gas heater；7, sealing device；8, tow；9, apparatus for supplying cool water；11, burner hearth；12, inner thermal insulating layer；13,
Heater；14, external thermal insulation；15, shell body；16, temperature sensor；17, waste gas outlet；18, cooling sandwith layer；19, minute-pressure
Meter；21, delivery port；22, water inlet；23, interlayer；31, temperature sensing circuit；32, temperature-control circuit；41, wind pipe；
42, main exhaust duct；43, the first gas sampling cover；44, the second gas sampling cover；45, exhaust outlet；51, control valve；71, first is close
Seal apparatus；72, the second sealing device；73, third sealing device.A directions are the direction of advance of tow；B directions are the stream of nitrogen
Logical direction.
Embodiment
The utility model is described in further details below in conjunction with the accompanying drawings, but described further below is not intended as to this practicality
New restriction.
Fig. 1 is a kind of positive structure diagram of preferred scheme high temperature carbonizing plant of the utility model, wherein body of heater portion
Divide section view.A directions are the direction of advance of tow；B directions are the circulating direction of nitrogen.The circulating direction of nitrogen advances with tow
It is in opposite direction.From fig. 1, it can be seen that the low temperature carbonization furnace is by body of heater 1, cooling chamber 2, temp detecting controller 3, gas extraction system
4, air feed system 5 is protected, gas heater 6 is protected, sealing device 7 and cooling water supply unit 9 are constituted.
Wherein, body of heater 1 is provided with inner thermal insulating layer 12 by burner hearth 11 at its center in the outside of the body of burner hearth 11,
Heater 13 and temperature sensor 16 are additionally provided between inner thermal insulating layer 12 and burner hearth 11.What it is in the outer wrap of inner thermal insulating layer 12 is
External thermal insulation 14, what it is in the external stability of external thermal insulation 14 installation is outer rigid housing body 15.It is provided with and body of heater 1 in the middle of burner hearth 11
The waste gas outlet 17 of ft connection, in order to which the waste gas produced in carbonisation is discharged to outside body of heater 1.The inside of body of heater 1 is set
There are 8 warm areas being independently arranged, the first warm area, the second warm area, three-temperature-zone, heating are followed successively by from the entrance of tow 8 to outlet
Area, the 5th warm area, the 6th warm area, the 7th warm area and the 8th warm area.Wherein, the first warm area to the 6th warm area temperature gradually
Rise, the temperature reduction of the 7th warm area, the 8th warm area is transition warm area.So form tow and gradually risen into rear temperature and dropped again
Low gradient temperature change.Sidepiece or bottom in the middle of burner hearth 11 are provided with waste gas outlet 17, to prevent condensate exhaust gases from forming Jiao
Oil, or the tar of discharge pipe flow back to drop on fibre bundle.Cooling sandwith layer is provided with inside the outer rigid housing body 15 of body of heater 1
18, cooling sandwith layer 18 is provided with the water cooled electrode being connected with each warm area.In addition, being additionally provided with one near the port of export of burner hearth 11
Differential manometer, to be monitored to the pressure in burner hearth 11, to ensure that the pressure in burner hearth 11 meets production requirement.
Temp detecting controller 3 is externally provided with body of heater 1, temp detecting controller 3 has the He of temperature sensing circuit 31
Temperature-control circuit 32, it is connected by temperature sensing circuit 31 with the temperature sensor 16 inside body of heater 1, to realize to body of heater
The real-time detection of interior warm temperature.Meanwhile, it is connected by temperature-control circuit 31 with the heater 13 in body of heater 1, to realize
Control to the heating-up temperature of different heating regions in body of heater 1.In addition, temp detecting controller 3 also with the cooling sandwith layer of body of heater 1
18 water cooled electrode connection, to realize the control to cooling water, so as to accurately adjust warm temperature.
First sealing device 71 is fixedly connected with the entrance point of tow 8 of body of heater 1, is fixed in the port of export of tow 8 of body of heater 1
A cooling chamber 2 being fixedly connected by the second sealing device 72 is connected with, the 3rd is fixedly connected with the other end of cooling chamber 2
Sealing device 73.Cooling chamber 2 is externally provided with interlayer 23 in tow fairlead, be on the top of interlayer 23 by a delivery port 22, under
Portion is provided with a water inlet 21.Water inlet 21 and delivery port 22 and cooling water supply system connectivity, by the way of bottom in and top out
Cold water intaking is filled in interlayer 23, to be cooled down to tow.
Gas extraction system 4 includes the wind pipe 41 connected with waste gas outlet 17, with wind pipe 41 and two gas samplings
The main exhaust duct 42 that cover (the first gas sampling cover 43 and the second gas sampling cover 44) is connected, the exhaust connected with main exhaust duct 42
Mouth 45.Wherein, main exhaust duct 42 is horizontally disposed pipeline, and bottom discharges the waste gas in burner hearth 11, two by wind pipe 41
End is connected by bend pipe with the first gas sampling cover 43 and the second gas sampling cover 44, to collect lacking of being overflowed in process
Measure waste gas and inertia protection gas.The top of main exhaust duct 42 is by pipeline communication exhaust outlet 45, so as to which waste gas is discharged away.
Protection air feed system 5 passes through the low-temperature protection feed channel provided with flowmeter and control valve 51 and the second sealing device
72 connect with third sealing device 73, while being connected by pipeline with protection gas heater 6.Protect 6 couples of guarantors of gas heater
Shield gas is heated to meet the requirement into burner hearth 11.High temperature protection gas by heating again by be again provided with flowmeter and
The high temperature protection feed channel of control valve 51 enters first sealing device 71 to prevent air from entering in burner hearth 11.Meanwhile, then pass through
Feed channel is protected with being connected near the end of burner hearth 11, with the direction injection protection gas opposite with the direction of advance of tow 8, so as to right
Tow 8 during low-temperature carbonization is protected.
In addition to described above, the actual demand that those skilled in the art can be in production process, to all parts
Material and shape and size carry out conventional selection.For example, being used as heat-insulation layer from aluminium silicate wool as protection gas from nitrogen
Insulation material, from graphite as inner thermal insulating layer, from outer rigid housing body of the carbon steel as body of heater, from water cooling graphite heating electricity
Pole is used as heater of furnace interior etc..
Although the utility model is disclosed as above with preferred embodiment, it is not limited to the utility model, appoints
What person skilled in the art, is not departing from spirit and scope of the present utility model, can do various changes and modification, therefore
What protection domain of the present utility model should be defined by claims is defined.
Claims (10)
1. a kind of high temperature cabonization device for being used to produce carbon fiber, including body of heater (1), the sealing dress for being connected to body of heater (1) two ends
Put (7), the gas extraction system (4) connected with the burner hearth (11) of body of heater (1) and protection air feed system (5), it is characterised in that also wrap
The cooling chamber (2) that the tow port of export included in body of heater (1) is connected by non-contacting seal device (7), and pass through temperature respectively
What degree detection circuit (31) and temperature-control circuit (32) were connected with the temperature sensor (16) and heater (13) of body of heater (1)
Temp detecting controller (3)；Differential manometer (19) is provided with burner hearth (11) end.
2. high temperature cabonization device according to claim 1, it is characterised in that body of heater (1) includes burner hearth (11), is wrapped in stove
Inner thermal insulating layer (12) on the outside of thorax (11), is fixed on heater (13) and temperature between inner thermal insulating layer (12) and burner hearth (11)
Sensor (16), the external thermal insulation (14) being fixed on the outside of inner thermal insulating layer (12) and is fixed on the rigidity of external thermal insulation (14) outside
Shell body (15), cooling sandwith layer (18) is additionally provided with outer rigid housing body (15)；Waste gas outlet is provided with the middle of burner hearth (11)
(17)。
3. high temperature cabonization device according to claim 1, it is characterised in that burner hearth (11) is from tow (8) import to outlet
Be independently arranged successively the first warm area, the second warm area, three-temperature-zone, four-temperature region, the 5th warm area, the 6th warm area, the 7th warm area with
And the 8th warm area；Wherein, the first heating region to the 6th warm area temperature gradually increases, the reduction of the 7th warm area temperature, and the 8th warm area is
Transition warm area.
4. high temperature cabonization device according to claim 3, it is characterised in that waste gas outlet (17) is located in the middle of burner hearth (11)
Sidepiece or bottom.
5. high temperature cabonization device according to claim 4, it is characterised in that gas extraction system (4) includes and waste gas outlet
(17) wind pipe (41) of connection, the main exhaust duct (42) connected with wind pipe (41) and some gas sampling covers, with master
The exhaust outlet (45) of exhaust duct (42) connection.
6. high temperature cabonization device according to claim 1, it is characterised in that sealing device (7) includes the silk with body of heater (1)
The second of the first sealing device (71) that beam entrance point is tightly connected, connection body of heater (1) the tow port of export and cooling chamber (2) import
Sealing device (72), and it is connected to the third sealing device (73) of cooling chamber (2) outlet.
7. high temperature cabonization device according to claim 6, it is characterised in that protection air feed system (5) is by provided with stream
Gauge and the pipeline of control valve (51) will protect gas supply sealing device (7) and/or protection gas heater (6).
8. high temperature cabonization device according to claim 7, it is characterised in that protection air feed system (5) is protected by low temperature
Shield feed channel is connected with the second sealing device (72) and third sealing device (73)；Pass through pipeline and protection gas heater (6)
Connection, protection gas heater (6) is connected by high temperature protection feed channel with first sealing device (71) and burner hearth (11) end.
9. high temperature cabonization device according to claim 1, it is characterised in that cooling chamber (2) includes and cooling water supply system
The water inlet (22) and delivery port (21) of system connection, and positioned at tow introduction pipe outside and water inlet (22) and delivery port
(21) interlayer (23) of connection.
10. high temperature cabonization device according to claim 1, it is characterised in that cold also including apparatus for supplying cool water (9)
But water feeder (9) is connected by water inlet (22) with cooling chamber (2), by provided with temp detecting controller (3) even
The water-cooling sandwich (18) of the water cooled electrode control turnover connect, is cooled down to the different warm areas of burner hearth (11) respectively with realizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621151460.5U CN206521543U (en) | 2016-10-31 | 2016-10-31 | A kind of high temperature cabonization device for being used to produce carbon fiber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621151460.5U CN206521543U (en) | 2016-10-31 | 2016-10-31 | A kind of high temperature cabonization device for being used to produce carbon fiber |
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| CN206521543U true CN206521543U (en) | 2017-09-26 |
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ID=59888016
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621151460.5U Active CN206521543U (en) | 2016-10-31 | 2016-10-31 | A kind of high temperature cabonization device for being used to produce carbon fiber |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106283274A (en) * | 2016-10-31 | 2017-01-04 | 哈尔滨天顺化工科技开发有限公司 | A kind of high temperature cabonization device for producing carbon fiber |
| CN111733485A (en) * | 2020-07-30 | 2020-10-02 | 广州赛奥碳纤维技术股份有限公司 | Atmosphere balance system of carbonization furnace |
| CN117328168A (en) * | 2023-09-27 | 2024-01-02 | 陕西美兰德新材料股份有限公司 | Tubular high-temperature ceramic furnace for carbon fiber |
-
2016
- 2016-10-31 CN CN201621151460.5U patent/CN206521543U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106283274A (en) * | 2016-10-31 | 2017-01-04 | 哈尔滨天顺化工科技开发有限公司 | A kind of high temperature cabonization device for producing carbon fiber |
| CN106283274B (en) * | 2016-10-31 | 2018-07-17 | 哈尔滨天顺化工科技开发有限公司 | A kind of high temperature cabonization device for producing carbon fiber |
| CN111733485A (en) * | 2020-07-30 | 2020-10-02 | 广州赛奥碳纤维技术股份有限公司 | Atmosphere balance system of carbonization furnace |
| CN117328168A (en) * | 2023-09-27 | 2024-01-02 | 陕西美兰德新材料股份有限公司 | Tubular high-temperature ceramic furnace for carbon fiber |
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