CN203128704U - Non-melting furnace for producing asphalt carbon fibers - Google Patents
Non-melting furnace for producing asphalt carbon fibers Download PDFInfo
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- CN203128704U CN203128704U CN 201320105341 CN201320105341U CN203128704U CN 203128704 U CN203128704 U CN 203128704U CN 201320105341 CN201320105341 CN 201320105341 CN 201320105341 U CN201320105341 U CN 201320105341U CN 203128704 U CN203128704 U CN 203128704U
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Abstract
The utility model discloses a non-melting furnace for producing asphalt carbon fibers. The non-melting furnace consists of an air exhaust female pipe, an air exhaust fan and a plurality of layers of heating furnace bodies, wherein each layer of heating furnace body consists of a fiber bundle special wire belt conveying rail, a furnace cavity air heating and circulating system and a temperature measurement and control system. According to the non-melting furnace, fiber bundle special rail wire belts are used for conveying materials, so that phenomena of flocking and breakage which are caused by fiber friction are effectively avoided; each furnace cavity is provided with an independent hot air circulating system; due to a non-melting temperature field and uniform air speed, the temperature in each furnace cavity is easy to control; and the quality of the asphalt carbon fibers is improved.
Description
Technical field
The utility model relates to a kind of not melting furnace of producing the asphalt carbon fiber, and this device is the equipment of producing asphalt carbon fiber continuous filament yarn.
Background technology
Not melting is one of preparation asphalt carbon fiber significant process, and the melting process parameter does not directly influence structure and the performance of asphalt carbon fiber.Melting furnace is not the heat-treatment furnace that the charcoal fiber precursor is carried out oxidation processes, requires to have in the burner hearth uniform gas flow temperature and sufficient oxygen content, and not no dieseling appearance in the fusion process.Existing not melting furnace adopts external-heat resistance wire heater more, and resistance wire is arranged between the levels of each burner hearth of oxidation furnace usually, and it is arranged and distribution has limitation, and upward there is the heat conduction each other in lower hearth, causes furnace chamber temperature inhomogeneous.At the distribution of temperature range, fusion process generally need not carried out the multistage drawing-off, transform with the fibre structure that adapts to different phase, but drawing-off causes fibre pick, fracture of wire easily, thereby influences the mechanical property of fiber product.
Patent " a kind of pre-oxidation furnace " (patent No.: the pre-oxidation furnace of CN200910144302.5) mentioning, be applicable to the production of polyacrylonitrile based charcoal fiber, horizontal dividing plate is fixedly arranged in its body of heater, furnace chamber in the body of heater is divided into the separate furnace chamber of some layers, be provided with air inlet and air outlet on every layer of furnace chamber sidewall, this design has solved the problem of pre-oxidation equipment aspect temperature homogeneity, but continuous fiber synnema charcoal fiber is not melting in the production process because the friction traction, make fiber surface produce damage easily, lousiness, fracture of wire etc., cause fibre property to reduce greatly, product percent of pass reduces, special pitch fibers precursor intensity is low and more crisp, do not rubbing in the fusion process, traction will cause lousiness to pitch fibers, the influence that fracture of wire etc. are fatal.Patent " a kind of pre-oxidation furnace of producing the carbon fiber " (patent No.: CN201020672103.X) provide the pre-oxidation furnace that a kind of energy consumption is low, the furnace chamber temperature field produces carbon fiber uniformly.(patent No.: CN200620071568.3) provide a kind of laminated type pre-oxidation furnace, tow adopts the laminated type method of operation to patent " the outer hot pre-oxidation furnace of laminated type " in stove, realizes the turnover stove of asphalt carbon fibre bundle by the traction of godet roller.All there is same defective in the pre-oxidation furnace that above patent provides: in the fusion process, the traction friction will not produce damage to the asphalt carbon fiber surface, even fracture of wire, greatly reduce the performance of asphalt carbon fiber, and product percent of pass is reduced.
Li Anbang, high Rayleigh propose the continuous frame that freely falls of precursor and receive silk, the whole infusible process of frame in paper " pitch continuous spinning process and device "; The pitch fibers frame fibre bundle that freely falls is circle and huddles structure, multiple spot overlap joint between the tow.Do not melt the back fiber because crooked the generation between stress, the tow overlaps, tow is easy fracture of wire in post processing.
Summary of the invention
The purpose of this utility model is to provide a kind of not melting furnace of producing the asphalt carbon fiber, reduce the friction of manufacturing process medium pitch charcoal fiber, accomplish that the tractive force of asphalt carbon fiber is close to zero, effectively avoid the generation of asphalt carbon fiber because of mantle friction fluffing and phenomenon of rupture, improved the quality of asphalt carbon fiber product greatly.
The technical solution of the utility model is: a kind of not melting furnace of producing the asphalt carbon fiber, be made up of the female pipe of air draft and air draft blower fan and some layers of heating furnace body, every layer of heating furnace body is made up of fibre bundle special use guipure delivery track, the heating of furnace chamber gas and the circulatory system and measuring and controlling temp system;
The special-purpose guipure delivery track of described fibre bundle is made up of the special-purpose guipure of fibre bundle and transmission system thereof, be provided with some guipure projectioies according to traffic direction on the special-purpose guipure of fibre bundle, between two guipure projectioies of facing mutually, form guipure silk groove, the special-purpose guipure silk groove of top fiber bundle and the special-purpose guipure silk of lower floor's fibre bundle groove are with wide, and the special-purpose guipure silk of top fiber bundle groove is consistent with the center line of the special-purpose guipure silk of lower floor's fibre bundle groove, and the special-purpose guipure of fibre bundle is fixed by the mesh-belt conveying roller;
Described every layer of gas heating and the circulatory system are by hot air circulation blower, some heaters, the air intake distribution grid, the air-out distribution grid, the air draft control valve is formed, be provided with some heaters at every layer of hot air circulation blower outlet place and connect the furnace chamber air inlet, the place is provided with the air intake distribution grid at the furnace chamber air inlet, the place is provided with the air-out distribution grid at the furnace chamber air outlet, every layer of furnace chamber air outlet mended the air inlet that the wind control valve connects every layer of circulating fan through every layer of discharge pipe and every layer, every layer of furnace chamber air outlet also connects with the air draft air inlet through every layer of air draft control valve, and the air outlet of air draft blower fan connects atmosphere;
Described each furnace chamber all has temperature control system, is used for collection, monitoring and the control of furnace gas temperature.
The utility model also comprises fire extinguishing nitrogen system, fire extinguishing nitrogen system is made up of nitrogen feedway, the female tube valve of nitrogen, the female pipe of nitrogen, every layer of nitrogen valve, the nitrogen feedway connects with every layer of nitrogen valve couplet on the door through the female tube valve of nitrogen and the female pipe of nitrogen, and every layer of nitrogen valve connects every layer of hot air circulation blower air inlet.
The utlity model has following technique effect:
(1) adopts each fibre bundle dedicated track mesh-belt conveying, effectively avoided the generation of fibre frictoin fluffing, phenomenon of rupture, improved the asphalt carbon quality of fiber.
(2) adopt some furnace chambers, each furnace chamber is provided with independently hot air circulating system, and it is even not melt temperature field and wind speed, and each furnace chamber temperature is controlled easily, reduce the problem of damaging asphalt carbon fiber product quality because Control for Kiln Temperature is improper, improved the ratio of asphalt carbon fiber excellent product.
Description of drawings
Fig. 1 is the utility model embodiment front scheme of installation.
Fig. 2 is the utility model embodiment side scheme of installation.
Fig. 3 is the special-purpose guipure enlarged diagram of the utility model embodiment fibre bundle.
The specific embodiment
Bright specifically below in conjunction with the embodiment accompanying drawing.
As Fig. 1 and Fig. 2:
Be made up of the female pipe of air draft and air draft blower fan 9 and 3 layers of heating furnace body, every layer of heating furnace body is made up of fibre bundle special use guipure delivery track, the heating of furnace chamber gas and the circulatory system and measuring and controlling temp system;
The special-purpose guipure delivery track of ground floor fibre bundle is made up of the special-purpose guipure 2 of fibre bundle and mesh-belt conveying roller 12, and the special-purpose guipure 2 of fibre bundle is by the 12 fixing and transmissions of mesh-belt conveying roller.
The heating of ground floor gas and the circulatory system are by ground floor hot air circulation blower 4, some ground floor heaters 3, ground floor air intake distribution grid 5, ground floor air-out distribution grid 15, ground floor air draft control valve 10 is formed, be provided with some ground floor heaters 3 at outlet 6 places of ground floor hot air circulation blower 4 and connect ground floor furnace chamber air inlet, the place is provided with ground floor air intake distribution grid 5 at ground floor furnace chamber air inlet, the place is provided with ground floor air-out distribution grid 15 at ground floor furnace chamber air outlet, ground floor furnace chamber air outlet is mended the air inlet that wind control valve 8 connects ground floor circulating fan 4 through ground floor discharge pipe 11 and ground floor, ground floor furnace chamber air outlet also connects with the air inlet of air draft blower fan 9 through ground floor air draft control valve 10, and the air outlet of air draft blower fan 9 connects atmosphere.
Fire extinguishing nitrogen system is made up of nitrogen feedway 1, the female tube valve 7-1 of nitrogen, the female pipe of nitrogen, ground floor nitrogen valve 7-2, second layer nitrogen valve and the 3rd layer of nitrogen valve, nitrogen feedway 1 connects with ground floor nitrogen valve 7-2, second layer nitrogen valve and the 3rd layer of nitrogen valve couplet on the door through the female tube valve 7-1 of nitrogen and the female pipe of nitrogen, ground floor nitrogen valve 7-2 connects with ground floor hot air circulation blower 4 air inlets, second layer nitrogen valve connects with second layer hot air circulation blower air inlet, and the 3rd layer of nitrogen valve connects with the 3rd layer of hot air circulation blower air inlet.
The special-purpose guipure delivery track of the gas heating of the second layer and the 3rd layer and the circulatory system and fibre bundle and ground floor are same or similar.
Described each furnace chamber all has temperature control system, is used for collection, monitoring and the control of furnace gas temperature.
According to pre-oxidation process each cavity temperature is increased to whole temperature gradually.At first through the heater heating that circulates, the parallel air-out distribution grid that blows to uniformly behind the outlet of hot air circulation blower and furnace chamber air intake distribution grid heats furnace chamber the ON cycle blower fan with air in the furnace chamber.Furnace chamber heating back air-out connects the circulating fan air inlet through discharge pipe.
According to oxygen concentration in the production technology monitoring stove.Mend wind control valve 8 and ground floor air draft control valve 10 by adjusting ground floor, regulate toxic emission and replenish with new wind, to adjust the oxygen concentration in the stove.
After each cavity temperature is raised to the temperature and oxygen concentration of technological requirement, opens ground floor mesh-belt conveying roller 12 and drive special-purpose guipure 2 runnings of fibre bundle, open the second layer and three-layer network band conveying roller and drive the tape travel of fibre bundle private network, each layer guipure speed of service unanimity.
The asphalt carbon fiber is according to the direction motion of arrow 16.The asphalt carbon fibre bundle is put into the silk groove of the special-purpose guipure 2 of ground floor import fibre bundle, the special-purpose guipure 2 of ground floor fibre bundle moves from left to right pitch fibers synnema bundle is delivered to the special-purpose guipure of second layer fibre bundle top, pitch fibers synnema bundle freely falling body falls into the special-purpose guipure of second layer fibre bundle, the special-purpose guipure of second layer fibre bundle is turned left from the right side to move pitch fibers synnema bundle is delivered to the special-purpose guipure of the 3rd layer of fibre bundle top, the whole tow freely falling body of pitch fibers falls on the special-purpose guipure of the 3rd layer of fibre bundle, and the 3rd layer of special-purpose guipure of fibre bundle moves from left to right pitch fibers synnema bundle is sent not melting furnace.According to oxidation technology pair net tape running speed, send qualified not molten asphalt fibre bundle for the 3rd layer.
The ground floor body of heater is divided into two furnace chambers, all adopts left air intake, and right air draft mode, temperature arrange 130 ℃, 180 ℃, and furnace chamber temperature is even, air quantity 0.3m/s-2m/s, and the pitch tow dewaters through the ground floor body of heater, oven dry.Second layer body of heater is divided into into four warm areas of four furnace chambers with the 3rd layer of body of heater, temperature is respectively 225 ℃, 245 ℃ 280 ℃, 310 ℃, the body of heater furnace chamber temperature is even, air quantity 0.3m/s-2m/s, the pitch fibers tow is through the furnace chamber of mesh-belt conveying by different temperatures, temperature steadily rises, and the speed of control guipure operation reaches the infusible purpose of pitch fibers tow.
The special-purpose guipure of each layer fibre bundle is along the track cross level layout or be in tilted layout 5 °～45 ° at inclination angle.
As Fig. 3, be provided with some guipure projection 2-1 according to traffic direction on the special-purpose guipure 2 of fibre bundle, between two guipure projection 2-1 that face mutually, form guipure silk groove.
The width of the special-purpose guipure of each layer fibre bundle and silk groove thereof is identical.When the special-purpose guipure of fibre bundle is installed, need the special-purpose guipure silk of top fiber bundle groove consistent with the center line of the special-purpose guipure silk of lower floor's fibre bundle groove.
Described each chamber guipure is smooth, operates steadily diameter＞300 of the special-purpose guipure drive roll of fibre bundle and driven voller millimeter.
Each air intake control valve, air-out control valve are by adopting solenoid control air intake or air draft air quantity.
Claims (3)
1. not melting furnace of producing the asphalt carbon fiber, it is characterized in that: be made up of the female pipe of air draft and air draft blower fan and some layers of heating furnace body, every layer of heating furnace body is made up of fibre bundle special use guipure delivery track, the heating of furnace chamber gas and the circulatory system and measuring and controlling temp system;
The special-purpose guipure delivery track of described fibre bundle is made up of the special-purpose guipure of fibre bundle and transmission system thereof, be provided with some guipure projectioies according to traffic direction on the special-purpose guipure of fibre bundle, between two guipure projectioies of facing mutually, form guipure silk groove, the special-purpose guipure silk groove of top fiber bundle and the special-purpose guipure silk of lower floor's fibre bundle groove are with wide, and the special-purpose guipure silk of top fiber bundle groove is consistent with the center line of the special-purpose guipure silk of lower floor's fibre bundle groove, and the special-purpose guipure of fibre bundle is fixed by the mesh-belt conveying roller;
Described every layer of gas heating and the circulatory system are by hot air circulation blower, some heaters, the air intake distribution grid, the air-out distribution grid, the air draft control valve is formed, be provided with some heaters at every layer of hot air circulation blower outlet place and connect the furnace chamber air inlet, the place is provided with the air intake distribution grid at the furnace chamber air inlet, the place is provided with the air-out distribution grid at the furnace chamber air outlet, every layer of furnace chamber air outlet mended the air inlet that the wind control valve connects every layer of circulating fan through every layer of discharge pipe and every layer, every layer of furnace chamber air outlet also connects with the air draft air inlet through every layer of air draft control valve, and the air outlet of air draft blower fan connects atmosphere;
Described each furnace chamber all has temperature control system, is used for collection, monitoring and the control of furnace gas temperature.
2. a kind of not melting furnace of producing the asphalt carbon fiber according to claim 1, it is characterized in that: also comprise fire extinguishing nitrogen system, fire extinguishing nitrogen system is made up of nitrogen feedway, the female tube valve of nitrogen, the female pipe of nitrogen, every layer of nitrogen valve, the nitrogen feedway connects with every layer of nitrogen valve couplet on the door through the female tube valve of nitrogen and the female pipe of nitrogen, and every layer of nitrogen valve connects every layer of hot air circulation blower air inlet.
3. a kind of not melting furnace of producing the asphalt carbon fiber according to claim 2, it is characterized in that: its heating furnace body is formed by 3 layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320105341 CN203128704U (en) | 2013-03-08 | 2013-03-08 | Non-melting furnace for producing asphalt carbon fibers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320105341 CN203128704U (en) | 2013-03-08 | 2013-03-08 | Non-melting furnace for producing asphalt carbon fibers |
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| Publication Number | Publication Date |
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| CN203128704U true CN203128704U (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320105341 Expired - Fee Related CN203128704U (en) | 2013-03-08 | 2013-03-08 | Non-melting furnace for producing asphalt carbon fibers |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643353A (en) * | 2013-11-21 | 2014-03-19 | 宿迁澳鑫斯新材料有限公司 | Infusible production apparatus of industrial continuous silicon carbide precursor fiber-polycarbosilane fiber |
| CN116590811A (en) * | 2023-07-19 | 2023-08-15 | 新创碳谷集团有限公司 | New air mixing adjusting system and method for carbon fiber pre-oxidation furnace |
-
2013
- 2013-03-08 CN CN 201320105341 patent/CN203128704U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643353A (en) * | 2013-11-21 | 2014-03-19 | 宿迁澳鑫斯新材料有限公司 | Infusible production apparatus of industrial continuous silicon carbide precursor fiber-polycarbosilane fiber |
| CN103643353B (en) * | 2013-11-21 | 2015-09-23 | 宿迁澳鑫斯新材料有限公司 | A kind of industrialization continuous carbofrax fibre precursor wire---the infusible process units of polycarbosilane fiber |
| CN116590811A (en) * | 2023-07-19 | 2023-08-15 | 新创碳谷集团有限公司 | New air mixing adjusting system and method for carbon fiber pre-oxidation furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Non-melting furnace for producing asphalt carbon fibers Effective date of registration: 20161104 Granted publication date: 20130814 Pledgee: Ma Jiaolu Pledgor: Sichuan Chuangyue Carbon Material Co., Ltd. Registration number: 2016510000060 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20190308 |