CN106637513B - A kind of low-temperature carbonization device for carbon fiber production - Google Patents
A kind of low-temperature carbonization device for carbon fiber production Download PDFInfo
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- CN106637513B CN106637513B CN201610933155.XA CN201610933155A CN106637513B CN 106637513 B CN106637513 B CN 106637513B CN 201610933155 A CN201610933155 A CN 201610933155A CN 106637513 B CN106637513 B CN 106637513B
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- 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 kind of low-temperature carbonization devices for carbon fiber production, belong to carbon fiber production technical field.The low-temperature carbonization device, including furnace body, the sealing device that is connected to furnace body both ends, the exhaust system being connected to the burner hearth of furnace body and protection air feed system.In addition, further including the cooling chamber connected in the tow outlet end of furnace body by non-contacting seal device, and the temp detecting controller connected by the temperature sensor of temperature sensing circuit and furnace body.Low-temperature carbonization device provided by the present invention is provided with cooling chamber in furnace body outlet end, can be effectively reduced the temperature that tow involves furnace body, prevent the high temperature tow by carbonization by the dioxygen oxidation in air, improve the quality of carbon fiber.Meanwhile the present invention is mounted with that temperature sensor can be monitored and control to the intracorporal temperature of furnace in real time in furnace interior.
Description
Technical field
The present invention relates to a kind of low-temperature carbonization devices for carbon fiber production, belong to carbon fiber production technical field.
Background technique
In the production process of carbon fiber, the processes such as precursor is pre-oxidized and is carbonized are so that its molecular structure occurs
Variation forms carbon fiber structural.Therefore, it pre-oxidizes and carbonization technique is the critical process link in carbon fiber production process.Its
In, the carbonization technique of carbon fiber is divided into low-temperature carbonization and high temperature cabonization again.It needs in different carbonation stages using different carbon
Change equipment to carry out.Wherein, low-temperature carbonization often gradually segmentation heating, when carbonization, need using inert gas as protecting gas.
The substances such as exhaust gas and tar can be generated in carbonisation, need to exclude, to prevent from polluting carbon fiber.Meanwhile by
The carbonization for passing through higher temperature in carbonizing plant in carbon fiber, when the spinning by carbonization is stretched next from carbonizing plant,
If temperature does not drop to mentions the very easy dioxygen oxidation by air enough, decline so as to cause the quality of carbon fiber.It is existing
The cooling link for lacking carbonization spinning outlet section in some low-temperature carbonization equipment, leads to the second-rate of spinning.
Summary of the invention
In order to solve the above technical problems, being adopted the present invention provides a kind of low-temperature carbonization device for carbon fiber production
The technical solution taken is as follows:
A kind of low-temperature carbonization device for carbon fiber production including furnace body 1, is connected to the sealing device at 1 both ends of furnace body
7, the exhaust system 4 and protection air feed system 5 being connected to the burner hearth 11 of furnace body 1.It meanwhile further including going out in the tow of furnace body 1
Mouth end passes through the cooling chamber 2 that non-contacting seal device 7 connects, and passes through the temperature biography of temperature sensing circuit 31 and furnace body 1
The temp detecting controller 3 that sensor 16 connects.
Preferably, the temp detecting controller 3 by the heating device 13 in temperature-control circuit 32 and furnace body 1 into
Trip temperature computer heating control is chain.
Preferably, furnace body 1 includes burner hearth 11, is wrapped in the silicon carbide bushing 12 in 11 outside of burner hearth, is fixed on silicon carbide lining
Heating device 13 and temperature sensor 16 among set 12 are fixed on the insulating layer 14 in 12 outside of silicon carbide bushing and are fixed on
Outer rigid housing body 15 outside insulating layer 14；Waste gas outlet 17 is equipped among burner hearth 11.
It is highly preferred that burner hearth 11 is from 8 import of tow to outlet is divided into the first heating region, the second heating region, third add
Warm area, equalized temperature area, the 4th heating region, the 5th heating region and the 6th heating region；Wherein, the first heating region temperature is lower than second
Heating region, the second heating region are lower than third heating region；6th heating region temperature is lower than the 5th heating region, and the 5th heating region temperature is low
In the 4th heating region.
It is highly preferred that waste gas outlet 17 is located at the side or bottom in equalized temperature area.
Preferably, exhaust system 4 includes the wind pipe 41 being connected to waste gas outlet 17, with wind pipe 41 and several useless
The main air-exhausting duct 42 of gas collecting hood connection, the exhaust outlet 45 being connected to main air-exhausting duct 42.
Preferably, sealing device 7 includes the first sealing device 71 being tightly connected with the tow input end of furnace body 1, connection
Second sealing device 72 of 1 tow outlet end of furnace body and 2 import of cooling chamber, and it is connected to the third sealing of the outlet of cooling chamber 2
Device 73.
It is highly preferred that protection gas feed system 5 is supplied by being equipped with the pipeline connective protection gas of flowmeter and control valve 51
Sealing device 7 and/or protection gas heating device 6, and with control system control chain.
It is highly preferred that protection air feed system 5 is sealed by low-temperature protection feed channel and the second sealing device 72 and third
Device 73 connects；Connect by pipeline with protection gas heating device 6, protection gas heating device 6 by high temperature protection feed channel and
First sealing device 71 connects.
Preferably, cooling chamber 2 includes the water inlet 22 and water outlet 21 connecting with cooling water supply system, and is located at silk
The interlayer 23 being connected on the outside of beam introduction pipe with water inlet 22 and water outlet 21.
It is that the present invention obtains the utility model has the advantages that
Low-temperature carbonization device provided by the present invention is provided with cooling chamber in furnace body outlet end, can be effectively reduced tow
The temperature for involving furnace body prevents the high temperature tow by carbonization by the dioxygen oxidation in air, improves the quality of carbon fiber.Together
When, the present invention is mounted with that temperature sensor can be monitored and control to the intracorporal temperature of furnace in real time in furnace interior.
Detailed description of the invention
Fig. 1 is the positive structure diagram (oven body part section view) of high temperature cabonization device of the invention.
In figure: 1, furnace body；2, cooling chamber；3, temp detecting controller；4, exhaust system；5, protect gas feed system；
6, protect gas heating device；7, sealing device；8, tow；11, burner hearth；12, silicon carbide bushing；13, heating device；14, heat preservation
Layer；15, outer housing；16, temperature sensor；17, waste gas outlet；21, water outlet；22, water inlet；23, interlayer；31, temperature inspection
Slowdown monitoring circuit；32, temperature-control circuit；41, wind pipe；42, main air-exhausting duct；43, the first gas sampling cover；44, the second exhaust gas
Collecting hood；45, exhaust outlet；51, control valve；71, first sealing device；72, the second sealing device；73, third sealing device.
Specific embodiment
The present invention is described in further details with reference to the accompanying drawing, but following detailed description is not intended as to limit of the invention
It is fixed.
Fig. 1 is a kind of positive structure diagram of preferred embodiment high temperature carbonizing plant of the present invention, and wherein oven body part is cutd open
Depending on.From fig. 1, it can be seen that the low temperature carbonization furnace is to protect gas by furnace body 1, cooling chamber 2, temp detecting controller 3, exhaust system 4
Feed system 5 protects gas heating device 6 and sealing device 7 to form.
Wherein, furnace body 1 is by burner hearth 11 at its center, the semi-circular silicon carbide bushing pipe being wrapped on the outside of 11 tube body of burner hearth
12, heating device 13 and temperature sensor 16 inside silicon carbide bushing pipe 12.What is wrapped up outside silicon carbide bushing pipe 12 is
Insulating layer 14, what is be fixedly mounted outside insulating layer 14 is outer rigid housing body 15.It is equipped among burner hearth 11 and connects with outside furnace body 1
Logical waste gas outlet 17, in order to which the exhaust gas generated in carbonisation to be discharged to outside furnace body 1.The inside of furnace body 1 is equipped with 6 and adds
Warm area is followed successively by the first heating region, the second heating region, third heating region, the 4th heating region, the 5th from 8 entrance of tow to outlet
Heating region and the 6th heating region.Wherein, still there is an equalized temperature area between third heating region and the 4th heating region.Together
When, there is some difference for the temperature of each heating region, wherein the temperature of the first heating region is lower than the second heating region, the second heating region
Temperature is lower than third heating region；And the temperature of the 6th heating region is lower than the 5th heating region, the temperature of the 5th heating region is lower than the 4th
The temperature of heating region.Tow is formed in this way, and the gradient temperature variation gradually decreased again is gradually risen into rear temperature.In third and
The side or bottom in the equalized temperature area between the 4th heating region are equipped with waste gas outlet 17, to prevent condensate exhaust gases from forming tar,
Or the tar of discharge pipe flows back to drip on fibre bundle.
It is externally provided with temp detecting controller 3 in furnace body 1, temp detecting controller 3 has 31 He of temperature sensing circuit
Temperature-control circuit 32 is connect by temperature sensing circuit 31 with the temperature sensor 16 inside furnace body 1, to realize to furnace body
The real-time detection of interior warm temperature.Meanwhile being connect by temperature-control circuit 31 with the heating device 13 in furnace body 1, to realize
Control to the heating temperature of heating regions different in furnace body 1.
It is fixedly connected with first sealing device 71 in 8 input end of tow of furnace body 1, is fixed in 8 outlet end of tow of furnace body 1
It is connected with the cooling chamber 2 being fixedly connected by the second sealing device 72, is fixedly connected with third in the other end of cooling chamber 2
Sealing device 73.Cooling chamber 2 is externally provided with interlayer 23 in tow fairlead, the top of interlayer 23 be by a water outlet 22, under
Portion is equipped with a water inlet 21.Water inlet 21 and water outlet 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 cool down to tow.
Exhaust system 4 includes the wind pipe 41 being connected to waste gas outlet 17, with wind pipe 41 and two gas samplings
The main air-exhausting duct 42 that cover (the first gas sampling cover 43 with the second gas sampling cover 44) is connected to, the exhaust being connected to main air-exhausting duct 42
Mouth 45.Wherein, main air-exhausting duct 42 be horizontally disposed pipeline, bottom by wind pipe 41 be discharged burner hearth 11 in exhaust gas, two
End is connected to by bend pipe with the first gas sampling cover 43 and the second gas sampling cover 44, to collect lacking of overflowing in process
It measures exhaust gas and inertia protects gas.The top of main air-exhausting duct 42 is connected to exhaust outlet 45 by pipeline, so that exhaust gas to be discharged away.
Gas feed system 5 is protected to pass through low-temperature protection feed channel and the second sealing device equipped with flowmeter and control valve 51
72 are connected to third sealing device 73, while being connected to by pipeline with protection gas heating device 6.6 couples of gas heating device guarantors of protection
Shield gas is heated to meet the requirement for entering burner hearth 11.High temperature protection gas by heating is passed through by high temperature protection feed channel
First sealing device 71 enters in burner hearth 11, to protect to the tow 8 during low-temperature carbonization.Meanwhile protecting gas
Heating device 6 also is provided with the steam line of connection 11 both ends port of burner hearth, is adequately protected with the oxidation process to tow 8.
Protect gas feed system 5, protection gas heating device 6 and sealing device 7 can with outside Schwelvorrichtung computer or control
System processed control chain.
In addition to described above, those skilled in the art can be according to the actual demand in production process, to all parts
Material and shape and size carry out conventional selection.For example, selecting nitrogen as protection gas, select aluminium silicate wool as insulating layer
Thermal insulation material selects outer rigid housing body of the carbon steel as furnace body, selects heating device etc. of the nickel filament as furnace interior.
Although the present invention has been disclosed in the preferred embodiment as above, it is not intended to limit the invention, any to be familiar with this
The people of technology can do various changes and modification, therefore protection of the invention without departing from the spirit and scope of the present invention
Range should subject to the definition of the claims.
Claims (10)
1. it is a kind of for carbon fiber production low-temperature carbonization device, including furnace body (1), be connected to furnace body (1) both ends sealing dress
Set (7), the exhaust system (4) being connected to the burner hearth (11) of furnace body (1) and protection air feed system (5), which is characterized in that also wrap
It includes and passes through the cooling chamber (2) that non-contacting seal device (7) connect in the tow outlet end of furnace body (1), and examined by temperature
The temp detecting controller (3) that slowdown monitoring circuit (31) is connect with the temperature sensor (16) of furnace body (1), the inside of furnace body (1) are set
There are 6 heating regions, the first heating region, the second heating region, third heating region, equalized temperature are followed successively by from tow entrance to outlet
Area, the 4th heating region, the 5th heating region and the 6th heating region, wherein the temperature of the first heating region be lower than the second heating region, second
Heating region temperature is lower than third heating region；The temperature of 6th heating region is lower than the 5th heating region, and the 5th heating region temperature is lower than the
The temperature of four heating regions.
2. low-temperature carbonization device described in claim 1, which is characterized in that the temp detecting controller (3) passes through temperature
Control circuit (32) and heating device (13) the progress temperature computer heating control in furnace body (1) are chain.
3. low-temperature carbonization device described in claim 1, which is characterized in that furnace body (1) includes burner hearth (11), is wrapped in burner hearth
(11) the silicon carbide bushing (12) on the outside of is fixed on silicon carbide bushing (12) intermediate heating device (13) and temperature sensor
(16), the insulating layer (14) that is fixed on the outside of silicon carbide bushing (12) and it is fixed on the outer rigid housing body of insulating layer (14) outside
(15)；Waste gas outlet (17) are equipped among burner hearth (11).
4. low-temperature carbonization device as claimed in claim 3, which is characterized in that burner hearth (11) from tow (8) import to outlet successively
Be divided into the first heating region, the second heating region, third heating region, equalized temperature area, the 4th heating region, the 5th heating region and the 6th plus
Warm area；Wherein, the first heating region temperature is lower than the second heating region, and the second heating region is lower than third heating region；6th heating region temperature
Degree is lower than the 5th heating region, and the 5th heating region temperature is lower than the 4th heating region.
5. low-temperature carbonization device as claimed in claim 4, which is characterized in that waste gas outlet (17) is located at the side in equalized temperature area
Or bottom.
6. low-temperature carbonization device described in claim 1, which is characterized in that exhaust system (4) includes connecting with waste gas outlet (17)
Logical wind pipe (41), the main air-exhausting duct (42) being connected to wind pipe (41) and several gas sampling covers, with main air-exhausting duct
(42) exhaust outlet (45) being connected to.
7. low-temperature carbonization device described in claim 1, which is characterized in that sealing device (7) include with the tow of furnace body (1) into
The first sealing device (71) that mouth end is tightly connected connects second sealing of furnace body (1) tow outlet end and cooling chamber (2) import
Device (72), and it is connected to the third sealing device (73) of cooling chamber (2) outlet.
8. low-temperature carbonization device as claimed in claim 7, which is characterized in that protection air feed system (5) is by being equipped with flowmeter
Sealing device (7) and/or protection gas heating device (6) are supplied with the pipeline connective protection gas of control valve (51).
9. low-temperature carbonization device according to any one of claims 8, which is characterized in that protection air feed system (5) passes through low-temperature protection gas
Pipeline is connect with the second sealing device (72) and third sealing device (73)；It is connect by pipeline with protection gas heating device (6),
Protection gas heating device (6) is connect by high temperature protection feed channel with first sealing device (71).
10. low-temperature carbonization device described in claim 1, which is characterized in that cooling chamber (2) includes connecting with cooling water supply system
The water inlet (22) and water outlet (21) connect, and be located on the outside of tow introduction pipe and connect with water inlet (22) and water outlet (21)
Logical interlayer (23).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610933155.XA CN106637513B (en) | 2016-10-31 | 2016-10-31 | A kind of low-temperature carbonization device for carbon fiber production |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610933155.XA CN106637513B (en) | 2016-10-31 | 2016-10-31 | A kind of low-temperature carbonization device for carbon fiber production |
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| Publication Number | Publication Date |
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| CN106637513A CN106637513A (en) | 2017-05-10 |
| CN106637513B true CN106637513B (en) | 2019-10-11 |
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| CN201610933155.XA Active CN106637513B (en) | 2016-10-31 | 2016-10-31 | A kind of low-temperature carbonization device for carbon fiber production |
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| CN107541810B (en) * | 2017-09-18 | 2019-01-25 | 中安信科技有限公司 | The tracing system of carbon fibre carbonizing furnace exhaust pipeline |
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| CN101451279A (en) * | 2008-12-30 | 2009-06-10 | 山东大学 | Novel composite high temperature carbonization furnace |
| CN201652786U (en) * | 2010-01-22 | 2010-11-24 | 重庆工商大学 | Tubular type electric heater |
| CN201817599U (en) * | 2010-09-17 | 2011-05-04 | 西安航科等离子体科技有限公司 | Low-temperature carbonizing furnace used for producing continuous carbon fibers |
| CN202099435U (en) * | 2011-05-17 | 2012-01-04 | 上海联川自动化科技有限公司 | High-temperature carbonization furnace |
| CN204958411U (en) * | 2015-05-31 | 2016-01-13 | 浙江富来森能源科技有限公司 | Continuous alkali activation tunnel kiln of many temperature section active carbons of kun formula |
| CN205133822U (en) * | 2015-11-12 | 2016-04-06 | 荣成复合材料有限公司 | High -temperature carbonizing furnace for carbon fiber production |
| CN206143363U (en) * | 2016-10-31 | 2017-05-03 | 哈尔滨天顺化工科技开发有限公司 | A low temperature carbonization device for carbon fiber production |
-
2016
- 2016-10-31 CN CN201610933155.XA patent/CN106637513B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101451279A (en) * | 2008-12-30 | 2009-06-10 | 山东大学 | Novel composite high temperature carbonization furnace |
| CN201652786U (en) * | 2010-01-22 | 2010-11-24 | 重庆工商大学 | Tubular type electric heater |
| CN201817599U (en) * | 2010-09-17 | 2011-05-04 | 西安航科等离子体科技有限公司 | Low-temperature carbonizing furnace used for producing continuous carbon fibers |
| CN202099435U (en) * | 2011-05-17 | 2012-01-04 | 上海联川自动化科技有限公司 | High-temperature carbonization furnace |
| CN204958411U (en) * | 2015-05-31 | 2016-01-13 | 浙江富来森能源科技有限公司 | Continuous alkali activation tunnel kiln of many temperature section active carbons of kun formula |
| CN205133822U (en) * | 2015-11-12 | 2016-04-06 | 荣成复合材料有限公司 | High -temperature carbonizing furnace for carbon fiber production |
| CN206143363U (en) * | 2016-10-31 | 2017-05-03 | 哈尔滨天顺化工科技开发有限公司 | A low temperature carbonization device for carbon fiber production |
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