CN109652870B - Activated carbon fiber low-temperature pre-oxidation equipment - Google Patents
Activated carbon fiber low-temperature pre-oxidation equipment Download PDFInfo
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- CN109652870B CN109652870B CN201811627637.8A CN201811627637A CN109652870B CN 109652870 B CN109652870 B CN 109652870B CN 201811627637 A CN201811627637 A CN 201811627637A CN 109652870 B CN109652870 B CN 109652870B
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- pipe
- gas
- waste gas
- carbon fiber
- carbonization
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
Abstract
The invention discloses active carbon fiber low-temperature pre-oxidation equipment, which belongs to the technical field of carbon fiber manufacturing and comprises a carbonization bin, a carbon fiber bundle and a gas conveying pipeline, wherein the gas conveying pipeline comprises a gas conveying pipe and a waste gas conveying pipe, the two sides of the carbonization bin are respectively connected with the gas conveying pipe and the waste gas conveying pipe, one side of the gas conveying pipeline, which is close to the gas conveying pipe, is provided with a hot air blower, and the waste gas conveying pipe penetrates through the gas conveying pipe. The moving direction of the carbon fiber bundle is opposite to the flowing direction of air in the carbonization bin, the carbonization bin is arranged, multi-temperature-section pre-oxidation treatment is realized under the condition of an air heater, energy is reasonably utilized, meanwhile, the manufacturing cost is saved, part of the waste gas conveying pipe penetrates through the gas conveying pipe, blown cold air can exchange heat with discharged waste gas in the flowing process, the energy is reasonably utilized, the waste gas discharging pipe penetrates through the hot water tank and is connected with the waste gas treatment bin, the waste heat of the discharged waste gas heats the water temperature in the hot water tank, and the energy is reasonably utilized.
Description
Technical Field
The invention relates to low-temperature pre-oxidation equipment, in particular to active carbon fiber low-temperature pre-oxidation equipment, and belongs to the technical field of carbon fiber processing.
Background
In recent years, under the promotion of the relevant ministry of China, China makes a major breakthrough in the aspects of industrialization and large-scale development, the carbon fiber industry enters an unprecedented new development stage, the trend of accelerated development appears in the carbon fiber engineering research and development under the complete carbon fiber research and development chain of China, a carbon fiber industry gathering place mainly comprising Shandong, Jiangsu, Jilin and the like is initially formed, a plurality of carbon fiber production backbone enterprises and a batch of carbon fiber composite material and product enterprises are cultivated, according to statistics, the carbon fiber capacity of China is increased from 6445 tons to 23810 tons during 2010-2016, the increase is nearly 4 times, the carbon fibers produced in China are all small tows, wherein the proportion of 12K exceeds 90%, the yields of 1K, 3K and 6K are respectively high, and although more and more enterprises are produced in China at present, the overall development rhythm is still slow, the products are still concentrated in the low modulus region, and the high-end products are still completely dependent on imports.
The carbon fiber needs to be at low temperature in ocean in the manufacturing process, the low-temperature pre-oxidation needs to be at extremely high temperature, and a plurality of greenhouses with gradually increasing temperature are needed, the existing high-temperature carbonization device is poor in heat preservation effect and serious in energy consumption, and the great waste of resources is caused.
Disclosure of Invention
The invention mainly aims to provide active carbon fiber low-temperature pre-oxidation equipment, which realizes multi-temperature-section pre-oxidation treatment under the conditions of arranging a carbonization bin chamber and an air heater, reasonably utilizes energy and saves the manufacturing cost.
The purpose of the invention can be achieved by adopting the following technical scheme:
the utility model provides an active carbon fiber low temperature pre-oxidation equipment, includes carbonization storehouse, carbon fiber bundle and gaseous transport pipe way, gaseous transport pipe way includes gaseous transport pipe and waste gas transport pipe, the carbonization storehouse is inlayed in the thermal-insulated insulation can, carbonization storehouse one side is equipped with gaseous transport pipe, carbonization storehouse opposite side is connected with waste gas transport pipe, gaseous transport pipe says and is close to gaseous transport pipe with one side that the carbonization storehouse is connected is equipped with the air heater, waste gas transport pipe is followed pass in the gaseous transport pipe.
Preferably, the gas conveying pipe comprises a gas inlet pipe, a gas diversion pipe and a gas conveying pipe, one end of the gas diversion pipe is connected with the gas inlet pipe and surrounds the lower end of the outer side of the heat insulation and preservation box, the gas conveying pipe is connected with the other side of the gas diversion pipe, the gas inlet pipe is connected with a gas pump, and the gas conveying pipe is connected with a gas inlet of the carbonization bin.
Preferably, the waste gas conveying pipe comprises a waste gas outlet pipe, a waste gas diversion pipe and a waste gas discharge pipe, wherein one end of the waste gas outlet pipe is connected with the gas outlet of the carbonization bin, the other end of the waste gas outlet pipe is connected with the waste gas diversion pipe wrapped inside the gas diversion pipe, and the waste gas discharge pipe penetrates through the gas diversion pipe and is connected with one end of the waste gas diversion pipe.
Preferably, a hot water tank is arranged below the heat insulation and preservation box and wrapped by the gas diversion pipe, a water inlet is formed in the upper end of one side of the hot water tank, a water outlet is formed in the upper end of the other side of the hot water tank, and the waste gas exhaust pipe penetrates through the hot water tank and is connected with a waste gas treatment bin.
Preferably, the carbon fiber bundle passes through the heat-insulation and heat-preservation bin and enters the carbonization bin from the end, far away from the air heater, of the carbonization bin, and the carbon fiber bundle passes through the heat-insulation and heat-preservation bin and leaves from the end, close to the air heater, of the carbonization bin.
Preferably, the connection part of the waste gas outlet pipe and the gas conveying pipe and the connection part of the waste gas discharge pipe and the gas conveying pipe are sealed in a high-temperature resistant manner.
The invention has the beneficial technical effects that:
1. according to the activated carbon fiber low-temperature pre-oxidation equipment provided by the invention, the movement direction of the carbon fiber bundle is opposite to the flow direction of air in the carbonization bin, the air heater is arranged at the air inlet of the carbonization bin, multi-temperature-section pre-oxidation treatment is realized under the condition that one carbonization bin and one air heater are arranged, the energy is reasonably utilized, and the manufacturing cost is saved.
2. According to the low-temperature pre-oxidation equipment for the activated carbon fibers, the part of the waste gas conveying pipe penetrates through the gas conveying pipe, the discharged waste gas has a certain temperature, and due to temperature emission, blown cold air can exchange heat with the discharged waste gas in the flowing process, so that the blown air is heated, the reaction in the carbonization bin is not influenced, and energy is reasonably utilized.
3. According to the activated carbon fiber low-temperature pre-oxidation equipment provided by the invention, the waste gas discharge pipe penetrates through the hot water tank to be connected with the waste gas treatment bin, the waste heat of the discharged waste gas heats the water temperature in the hot water tank, and the energy is reasonably utilized.
Drawings
Fig. 1 is a schematic cross-sectional view showing the overall structure of a preferred embodiment of the activated carbon fiber low-temperature pre-oxygenation apparatus according to the present invention.
In the figure: 1-carbonization bin, 2-heat insulation and preservation box, 3-gas transport pipeline, 4-hot water tank, 5-carbon fiber bundle, 6-air heater, 7-air pump, 31-gas transport pipe, 32-waste gas transport pipe, 41-water inlet, 42-water outlet, 311-gas inlet pipe, 312-gas transport pipe, 313-gas diversion pipe, 321-waste gas outlet pipe, 322-waste gas discharge pipe and 323-waste gas diversion pipe.
Detailed Description
In order to make the technical solutions of the present invention more clear and definite for those skilled in the art, the present invention is further described in detail below with reference to the examples and the accompanying drawings, but the embodiments of the present invention are not limited thereto.
As shown in fig. 1, the activated carbon fiber low-temperature pre-oxidation device provided by this embodiment includes a carbonization chamber 1, a carbon fiber bundle 5 and a gas transport pipe 3, the gas transport pipe 3 includes a gas transport pipe 31 and a waste gas transport pipe 32, the carbonization chamber 1 is embedded in a heat insulation and insulation box 2, the gas transport pipe 31 is disposed on one side of the carbonization chamber 1, the waste gas transport pipe 32 is connected to the other side of the carbonization chamber 1, an air heater 6 is disposed on one side of the gas transport pipe 3, which is close to the gas transport pipe 31 and connected to the carbonization chamber 1, and the waste gas transport pipe 32 passes through the gas transport pipe 31.
In this embodiment, as shown in fig. 1, the gas transport pipe 31 includes a gas inlet pipe 311, a gas diversion pipe 313 having one end connected to the gas inlet pipe 311 and disposed around the lower end of the outer side of the heat insulation and preservation box 2, and a gas transport pipe 312 connected to the other side of the gas diversion pipe 313, the gas inlet pipe 311 is connected to the air pump 7, the gas transport pipe 312 is connected to the air inlet of the carbonization bin 1, the air pump 7 blows air into the carbonization bin 1 through the gas transport pipe 31, and the tar generated by the preoxidation of the carbon fiber filaments in the carbonization bin 1 is taken away by the flow of the.
In this embodiment, as shown in fig. 1, the exhaust gas transporting pipe 31 includes an exhaust gas outlet pipe 321 having one end connected to the gas outlet of the carbonization chamber 1, an exhaust gas diversion pipe 323 connected to the other end of the exhaust gas outlet pipe 321 and wrapped inside the gas diversion pipe 313, and an exhaust gas discharge pipe 322 passing through the gas diversion pipe 313 and connected to one end of the exhaust gas diversion pipe 323, a part of the exhaust gas transporting pipe 32 passes through the gas transporting pipe 31, and the discharged exhaust gas has a certain temperature, and due to the temperature emission, the blown-in cold air can exchange heat with the discharged exhaust gas in the flowing process, so that the blown-in air is heated without affecting the reaction in the carbonization chamber 1, and energy is reasonably utilized.
In this embodiment, as shown in fig. 1, a hot water tank 4 is provided below the heat insulation and preservation box 2 and wrapped by a gas diversion pipe 313, a water inlet 41 is provided at an upper end of one side of the hot water tank 4, a water outlet 42 is provided at an upper end of the other side of the hot water tank 4, a waste gas discharge pipe 322 passes through the hot water tank 4 and is connected with a waste gas treatment bin, waste heat of discharged waste gas heats water in the hot water tank 4, and energy is reasonably utilized.
In this embodiment, as shown in fig. 1, the carbon fiber bundle 5 passes through the heat insulation and preservation chamber 2 and enters the carbonization chamber 1 from the end of the carbonization chamber 1 far from the air heater 6, the carbon fiber bundle 5 passes through the heat insulation and preservation chamber 2 from the end of the carbonization chamber 1 near the air heater 6 and leaves, the movement direction of the carbon fiber bundle 5 is opposite to the flow direction of the air in the carbonization chamber 1, and the air heater 6 is arranged at the air inlet of the carbonization chamber 1, so that the multi-temperature-section pre-oxidation treatment is realized under the condition that one carbonization chamber 1 and one air heater 6 are arranged, the energy is reasonably utilized, and the manufacturing cost is saved.
In the present embodiment, as shown in fig. 1, the connection between the exhaust gas outlet pipe 321 and the gas delivery pipe 312 and the connection between the exhaust gas exhaust pipe 322 and the gas delivery pipe 312 are both sealed at high temperature, so that the gas does not leak.
In conclusion, in the activated carbon fiber low-temperature pre-oxidation device of the embodiment, the exhaust gas transport pipe 32 includes the exhaust gas outlet pipe 321 with one end connected to the gas outlet of the carbonization chamber 1, the exhaust gas diversion pipe 323 connected to the other end of the exhaust gas outlet pipe 321 and wrapped inside the gas diversion pipe 313, and the exhaust gas discharge pipe 322 penetrating through the gas diversion pipe 313 and connected to one end of the exhaust gas diversion pipe 323, the discharged exhaust gas has a certain temperature, due to the temperature dissipation, the blown cold air can exchange heat with the discharged exhaust gas in the flowing process, so that the blown air is heated without affecting the reaction in the carbonization chamber 1, the energy is reasonably utilized, the exhaust gas discharge pipe 322 penetrates through the hot water tank 4 and is connected to the exhaust gas treatment chamber, the waste heat of the discharged exhaust gas heats the water in the hot water tank 4, the energy is reasonably utilized, the carbon fiber bundle 5 penetrates through the heat insulation and insulation thermal insulation box 2 and enters the carbonization chamber, the carbon fiber bundle 5 passes thermal-insulated insulation can 2 from carbonization storehouse 1 near the one end of air heater 6 and leaves, the direction of motion of carbon fiber bundle 5 and the flow direction of the interior air of carbonization storehouse 1 are opposite, and air heater 6 establishes the air inlet in carbonization storehouse 1, set up a carbonization storehouse 1, realize multi-temperature section pre-oxidation under the condition of an air heater 6 and handle, the manufacturing cost has been practiced thrift in the time of the rational utilization energy, the junction of waste gas outlet pipe 321 and gas delivery pipe 312 and the junction of waste gas delivery pipe 322 and gas delivery pipe 312 are all high temperature resistant sealed, high temperature seal makes gaseous can not reveal.
The above description is only for the purpose of illustrating the present invention and is not intended to limit the scope of the present invention, and any person skilled in the art can substitute or change the technical solution of the present invention and its conception within the scope of the present invention.
Claims (4)
1. The utility model provides an active carbon fiber low temperature pre-oxidation equipment, includes carbonization storehouse (1), carbon fiber bundle (5) and gas transport pipeline (3), its characterized in that: the gas transportation pipeline (3) comprises a gas transportation pipe (31) and a waste gas transportation pipe (32), the carbonization bin (1) is embedded in the heat insulation and preservation box (2), one side of the carbonization bin (1) is provided with the gas transportation pipe (31), the other side of the carbonization bin (1) is connected with the waste gas transportation pipe (32), the gas transportation pipeline (3) is close to one side of the gas transportation pipe (31) connected with the carbonization bin (1) and is provided with an air heater (6), the waste gas transportation pipe (32) passes through the gas transportation pipe (31), the gas transportation pipe (31) comprises a gas inlet pipe (311), one end of the gas inlet pipe (311) is connected with the gas inlet pipe (311) and surrounds the gas diversion pipe (313) arranged at the lower end of the outer side of the heat insulation and preservation box (2) and the gas transportation pipe (312) connected with the other side of the gas diversion pipe (313, gas intake pipe (311) are connected with air pump (7), gas delivery pipe (312) are connected with the air inlet in carbonization storehouse (1), waste gas transport pipe (32) include one end with waste gas outlet duct (321) that carbonization storehouse (1) gas outlet links to each other, with the parcel is connected to waste gas outlet duct (321) other end is in waste gas diversion pipe (323) inside gas diversion pipe (313) and pass gas diversion pipe (313) with waste gas drainage pipe (322) that waste gas diversion pipe (323) one end is connected.
2. The activated carbon fiber low-temperature pre-oxygenation device as claimed in claim 1, characterized in that: the gas diversion pipe (313) is wrapped below the heat insulation and preservation box (2) and is provided with a hot water tank (4), the upper end of one side of the hot water tank (4) is provided with a water inlet (41), the upper end of the other side of the hot water tank (4) is provided with a water outlet (42), and the waste gas discharge pipe (322) penetrates through the hot water tank (4) and is connected with a waste gas treatment bin.
3. The activated carbon fiber low-temperature pre-oxygenation device as claimed in claim 1, characterized in that: the carbon fiber bundle (5) penetrates through the heat-insulation heat-preservation box (2) and enters the carbonization bin (1) from one end, far away from the air heater (6), of the carbonization bin (1), and the carbon fiber bundle (5) penetrates through the heat-insulation heat-preservation box (2) from one end, close to the air heater (6), of the carbonization bin (1) and leaves.
4. The activated carbon fiber low-temperature pre-oxygenation device as claimed in claim 1, characterized in that: the joint of the waste gas outlet pipe (321) and the gas conveying pipe (312) and the joint of the waste gas discharge pipe (322) and the gas conveying pipe (312) are sealed in a high-temperature resistant manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811627637.8A CN109652870B (en) | 2018-12-28 | 2018-12-28 | Activated carbon fiber low-temperature pre-oxidation equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811627637.8A CN109652870B (en) | 2018-12-28 | 2018-12-28 | Activated carbon fiber low-temperature pre-oxidation equipment |
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| Publication Number | Publication Date |
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| CN109652870A CN109652870A (en) | 2019-04-19 |
| CN109652870B true CN109652870B (en) | 2021-05-18 |
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| CN201811627637.8A Active CN109652870B (en) | 2018-12-28 | 2018-12-28 | Activated carbon fiber low-temperature pre-oxidation equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20240035205A1 (en) * | 2020-03-24 | 2024-02-01 | Toray Industries, Inc. | Production method for precarbonized fiber bundle, production method for carbon fiber bundle, and precarbonization furnace |
| CN114717689B (en) * | 2022-04-20 | 2023-06-02 | 宁波益铸智能科技有限公司 | Low-temperature pre-oxidation equipment for activated carbon fibers |
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| CN205258696U (en) * | 2015-11-12 | 2016-05-25 | 荣成复合材料有限公司 | Carbon fiber preoxidation furnace |
| CN207891472U (en) * | 2018-01-29 | 2018-09-21 | 永虹先进材料股份有限公司 | Fiber pre-oxidation equipment |
| CN108823682A (en) * | 2018-08-15 | 2018-11-16 | 南安市品龙新材料科技有限公司 | A kind of pre-oxidation device being used to prepare carbon fiber |
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2018
- 2018-12-28 CN CN201811627637.8A patent/CN109652870B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1097032A (en) * | 1992-12-03 | 1995-01-04 | 陶氏化学公司 | The steam heat-treatment method that is used for polybenzazole fiber |
| CN101070643A (en) * | 2007-05-29 | 2007-11-14 | 肖颖 | Efficient energy-saving device of heating-gas circulation use for producing carbon fiber |
| CN201047003Y (en) * | 2007-05-31 | 2008-04-16 | 肖颖 | Heating gas cycle using high-effective energy-saving device for producing carbon-fiber |
| CN201738045U (en) * | 2010-07-09 | 2011-02-09 | 东华大学 | Simple preoxidation and carbonization integral device |
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Denomination of invention: Activated carbon fiber low temperature pre oxygenation equipment Effective date of registration: 20220125 Granted publication date: 20210518 Pledgee: Anhui Suma Financing Guarantee Co.,Ltd. Pledgor: ANHUI TIANFU ENVIRONMENTAL PROTECTION TECHNOLOGY MATERIAL Co.,Ltd. Registration number: Y2022980001007 |