CN205077181U - A nitrogen purging device for carbon fiber production - Google Patents
A nitrogen purging device for carbon fiber production Download PDFInfo
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- CN205077181U CN205077181U CN201520789432.5U CN201520789432U CN205077181U CN 205077181 U CN205077181 U CN 205077181U CN 201520789432 U CN201520789432 U CN 201520789432U CN 205077181 U CN205077181 U CN 205077181U
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- carbon fiber
- purging device
- casing
- nitrogen purging
- nitrogen
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Abstract
The utility model relates to a nitrogen purging device for carbon fiber production, it contains casing and lower casing, and hinged joint is passed through in the left side of upper and lower casing, and the casing is fixed about accomplishing, setting up a preliminary heat treatment in oxidizing silk at the last casing and the lower intermediate position of casing and sweeping the passageway, a silk mouth is advanced in the left end setting that sweeps the passageway at the preliminary heat treatment in oxidizing silk, and the right -hand member that sweeps the passageway at the preliminary heat treatment in oxidizing silk sets up outlet wire port, be equipped with two handles on the right side of last casing. The utility model discloses a solid phase carbonisation of polymer organic fibre under the anaerobic condition has been accomplished to the nitrogen purging device, has improved the physical properties index of carbon fiber, has also improved the carbon yield, has reduced manufacturing cost, has increased economic benefits.
Description
[technical field]
The utility model relates to carbon fibre producing facility technical field, specifically, is a kind of nitrogen purging device produced for carbon fiber.
[background technology]
Carbon fiber be phosphorus content higher than 92% inorganic polymer fiber.Wherein phosphorus content higher than 99% title graphite fibre.Axial strength and the modulus of carbon fiber are high, and without creep, fatigue durability is good, and specific heat and electric conductivity are between nonmetal and metal, and thermal coefficient of expansion is little, good corrosion resistance, and the density of fiber is low.Be better than metal material with the engineering material of carbon fiber compound, its tensile strength is higher than 3-4 times of steel, and endurance is high 2 times, and doubly, the little 4-5 of thermal expansion doubly for the light 3-4 of weight ratio steel.Graphite fibre can accomplish zero variant.Carbon fiber is widely used in national defence, space flight and aviation, guided missile, stealth aircraft and airliner, the fields such as high-speed rail transportation, vessel, sports goods, chemical machinery, electric power facility, textile machine and medicine equipment.
In carbonization technique, first the PAN base carbon fiber protofilament of linearity molecular structure is sent into pre-oxidation furnace, produce after chemistry and physical reactions through heating, after fibrous inner structure is converted into heat-resisting trapezoidal-structure, send into carbide furnace, under anaerobic, carry out solid phase carbonization, form the inorganic polymer fiber with random graphits structure.
Fiber is when carbonization, and in carbide furnace, micro-oxygen content will lower than 5PPm, and micro-oxygen amount exceeds standard, and will affect the performance indications of carbon fiber, and carbon yield reduces; So controlling the inner oxygen content of pre-oxidation tow is one of most important condition producing high-performance carbon fibre.
In sum, improve the performance indications of carbon fiber, micro-oxygen content when pre-oxidation synnema inherence enters pre-carbon must be solved.
[utility model content]
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of nitrogen purging device produced for carbon fiber.
The purpose of this utility model is achieved through the following technical solutions:
For carbon fiber produce a nitrogen purging device, it is characterized in that, it comprises upper shell and lower house, upper-lower casing pass on left chain connection, complete upper-lower casing and fix; A preoxided thread purge passage is set in the centre position of upper shell and lower house, arranges into silk mouth at the left end of preoxided thread purge passage, filament mouth is set at the right-hand member of preoxided thread purge passage; Two handles are provided with on the right side of upper shell.
Nitrogen pod apertures is evenly distributed at the upper lower wall of purge passage.
The aperture of nitrogen pod apertures is 5mm, and pitch of holes is 50mm.
A heated chamber is respectively equipped with at upper-lower casing.
Described heated chamber is provided with heat-insulation layer; Heat-insulation layer is positioned at the centre position of heated chamber.
The thickness 10-20cm of described heat-insulation layer.
Heated chamber arranges the electrically heated rod of 4KW, and electrically heated rod is fixed on the horizontal centre position of heated chamber.
The number of described nitrogen inlet is six, and install the left side with upper-lower casing respectively, each housing three entrances, installation site is divided equally.
Described nitrogen inlet is by having 10m
3the spinner flowmeter of/h controls, concrete six 10m
3the spinner flowmeter of/h controls to control corresponding nitrogen inlet.
Carbon fiber wire carbonization technique comprises pre-oxidation, pre-carbon, high-carbon, surface treatment, slashing step, it is characterized in that, between pre-oxygen and pre-carbon, increase by a preoxided thread nitrogen purge step; Described purge step uses nitrogen amount 50m
3/ h, nitrogen temperature 150-200 DEG C.
Being provided with two handles on the right side of upper shell can switch freely.
Compared with prior art, good effect of the present utility model is:
The utility model provides a kind of and reduces the device that preoxided thread enters humidity before carbide furnace.
The utility model provides the device reducing pre-oxidation synnema oxygen content before entering carbide furnace.
[accompanying drawing explanation]
Fig. 1 is the utility model carbonization technique flow chart;
The top view of Fig. 2 the utility model preoxided thread nitrogen purging device;
Fig. 3 is the sectional view of A-A position in Fig. 2;
Fig. 4 is the sectional view of B-B position in Fig. 2;
Being labeled as in accompanying drawing: 001-oxidation step, 002-preoxided thread nitrogen purging device, 003 pre-carbon step, 201-hinge, 202-handle, 203-electrically heated rod, 204-nitrogen pod apertures, 205-fiber purge passage, 206-nitrogen inlet, 207-heat-insulation layer, 208-enters silk mouth, 209-filament mouth.
[detailed description of the invention]
The detailed description of the invention of a kind of nitrogen purging device for carbon fiber production of the utility model is below provided.
Embodiment 1
Refer to accompanying drawing 1,2,3,4, a kind of nitrogen purging device produced for carbon fiber, carbon fiber wire carbonization technique, broad-leaved epiphyllum technique comprises pre-oxidation, pre-carbon, high-carbon, surface treatment, slashing step, it is characterized in that, between pre-oxygen and pre-carbon, increase by a preoxided thread nitrogen purge step;
Described purge step uses nitrogen amount 50m
3/ h, nitrogen temperature 150-200 DEG C.
Described nitrogen purging device comprises upper shell and lower house, and the hinge 201 that passes on left of upper-lower casing connects, and completes upper-lower casing and fixes.
A preoxided thread purge passage 205 is set in the centre position of upper shell and lower house, arranges into silk mouth 208 at the left end of preoxided thread purge passage, filament mouth 209 is set at the right-hand member of preoxided thread purge passage.
Being provided with two handles 202 on the right side of upper shell can switch freely.
Nitrogen pod apertures 204 is evenly distributed at the upper lower wall of purge passage.
The aperture of nitrogen pod apertures is 5mm, and pitch of holes is 50mm.
A heated chamber is respectively equipped with at upper-lower casing.
Described heated chamber is provided with heat-insulation layer 207; Heat-insulation layer is positioned at the centre position of heated chamber.
The thickness 10-20cm of described heat-insulation layer.
Heated chamber arranges the electrically heated rod 203 of 4KW, and electrically heated rod is fixed on the horizontal centre position of heated chamber.
The number of described nitrogen inlet 206 is six, and install the left side with upper-lower casing respectively, each housing 3 entrances, installation site is divided equally.
Described nitrogen inlet is by having 10m
3the spinner flowmeter of/h controls, concrete six 10m
3the spinner flowmeter of/h controls to control corresponding nitrogen inlet.
Carbonization technique of the present utility model, mainly solves micro-oxygen content when pre-oxidation synnema inherence enters pre-carbon; For this reason, on existing carbonization technique, the technological improvement carried out.
As shown in Figure 1, carbonization technique of the present utility model is between 001 pre-oxygen step and 003 pre-carbon, increases by 002 nitrogen purge step.
002 nitrogen purging device of the present utility model, is characterized in that being made up of two and half shells, has independently nitrogen heater and nitrogen water conservancy diversion to arrange respectively, can equip seamless link with pre-carbon.
Device of the present utility model has six nitrogen inlets 206, has nitrogen spinner flowmeter to control respectively, every half shell: specified nitrogen amount 25m
3/ h, specified heating power 4kw, rated temperature 200 DEG C.
Carbonization technology of the present utility model is that pre-oxidation synnema is when entering pre-carbon, at 200 DEG C, and 50m
3under the purging of/h nitrogen, reach the existence of the micro-oxygen of humidity and inside removing pre-oxidation synnema.
Carbonization technique of the present utility model and pre-oxidation synnema nitrogen purging device complete macromolecule organic fiber solid phase carbonisation under anaerobic, improve the physical performance index of carbon fiber, also improve carbon yield, reduce production cost, add economic benefit.
The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, without departing from the concept of the premise utility; can also make some improvements and modifications, these improvements and modifications also should be considered as in protection domain of the present utility model.
Claims (4)
1. for carbon fiber produce a nitrogen purging device, it is characterized in that, it comprises upper shell and lower house, upper-lower casing pass on left chain connection, complete upper-lower casing and fix; A preoxided thread purge passage is set in the centre position of upper shell and lower house, arranges into silk mouth at the left end of preoxided thread purge passage, filament mouth is set at the right-hand member of preoxided thread purge passage; Two handles are provided with on the right side of upper shell.
2. as claimed in claim 1 a kind of for carbon fiber produce nitrogen purging device, it is characterized in that, nitrogen pod apertures is evenly distributed at the upper lower wall of purge passage.
3. as claimed in claim 1 a kind of for carbon fiber produce nitrogen purging device, it is characterized in that, the aperture of nitrogen pod apertures is 5mm, and pitch of holes is 50mm.
4. as claimed in claim 1 a kind of for carbon fiber produce nitrogen purging device, it is characterized in that, the thickness 10-20cm of described heat-insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520789432.5U CN205077181U (en) | 2015-10-12 | 2015-10-12 | A nitrogen purging device for carbon fiber production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520789432.5U CN205077181U (en) | 2015-10-12 | 2015-10-12 | A nitrogen purging device for carbon fiber production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205077181U true CN205077181U (en) | 2016-03-09 |
Family
ID=55429598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520789432.5U Active CN205077181U (en) | 2015-10-12 | 2015-10-12 | A nitrogen purging device for carbon fiber production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205077181U (en) |
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2015
- 2015-10-12 CN CN201520789432.5U patent/CN205077181U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220707 Address after: 312000 91 hills, Binhai Industrial Zone, Keqiao District, Shaoxing, Zhejiang Patentee after: Zhejiang Baojing carbon material Co.,Ltd. Address before: 312030 North 4th Road, Binhai Avenue, jiuyiqiu, Binhai Industrial Zone, Keqiao District, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG JINGYE XINXING MATERIAL Co.,Ltd. |
|
| TR01 | Transfer of patent right |