EP2534287A1 - Oxidationsofen - Google Patents
OxidationsofenInfo
- Publication number
- EP2534287A1 EP2534287A1 EP11701767A EP11701767A EP2534287A1 EP 2534287 A1 EP2534287 A1 EP 2534287A1 EP 11701767 A EP11701767 A EP 11701767A EP 11701767 A EP11701767 A EP 11701767A EP 2534287 A1 EP2534287 A1 EP 2534287A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- boxes
- hot air
- air
- fibers
- oxidation furnace
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003647 oxidation Effects 0.000 title claims abstract description 31
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 claims abstract description 46
- 238000007664 blowing Methods 0.000 claims abstract description 10
- 230000001590 oxidative effect Effects 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 239000000835 fiber Substances 0.000 claims description 26
- 238000002347 injection Methods 0.000 claims description 21
- 239000007924 injection Substances 0.000 claims description 21
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 4
- 239000004917 carbon fiber Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
- D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
- D01F9/32—Apparatus therefor
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
- D02J13/001—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass in a tube or vessel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/28—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity for treating continuous lengths of work
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/3005—Details, accessories, or equipment peculiar to furnaces of these types arrangements for circulating gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
Definitions
- the invention relates to an oxidation furnace for oxidative treatment of fibers, in particular for the production of carbon fibers, with a housing that apart from inlet and
- Outlet regions for the fibers is gas-tight; a process space located in the interior of the housing; a blowing device arranged in the middle region of the process space, with which hot air can be blown into the process space in opposite directions and which comprises a plurality of vertically spaced-apart injection boxes, which comprise an inlet opening and
- the process space can also be considered as a zone that can be repeated in the longitudinal direction of the furnace for different temperatures and air flows.
- the Einblashimsten forming the injection device have continuous upper and lower sides and have only at the opposite narrow end faces outlet openings for the hot air. This means that the interspaces between superposed blow boxes are not or at least not flowed through in a defined manner by hot air and the fibers are not treated oxidatively in the passage of these spaces. Since, for reasons of air distribution, the blow-in must have not insignificant dimensions, fall
- the object of the present invention is to provide an oxidation furnace of the type mentioned above in such a way that that a required distance of the oxidative treatment of the fibers in a smaller volume of
- Furnace housed, in particular, the furnace can be built lower.
- a stack in the top and the bottom at least one additional outlet opening for hot air.
- the gaps between overlapping blow boxes can be done in this way actively participate in the oxidative treatment of the fibers.
- the furnace can be kept lower.
- a number of advantages are associated with this: since fewer serpentine passages of the fibers through the process space are required, deflection rollers for the threads and lock devices, which prevent air from escaping in the region of the entry and exit of the threads into the process space, can be saved ,
- there is a weight saving for the entire furnace which has a favorable effect on the costs of a steel construction on which the furnace is constructed.
- the quality of the product obtained increases due to the better air flow of the threads in the process area.
- FIG. 1 shows a vertical section through an oxidation furnace for the production of carbon fibers according to line I-I of Figure 2;
- FIG. 2 shows a horizontal section through the oxidation furnace of FIG. 1;
- Figure 3 shows a detail enlargement of Figure 1 in the area
- Figure 4 is a sectional plan view of an injection box, as used in an alternative embodiment of an oxidation furnace, according to the line IV - IV of Figure 5;
- FIG. 5 shows a plan view of the injection box of Figure 4.
- FIGS. 1 to 3 a first exemplary embodiment of an oxidation is shown furnace, which is generally designated by the reference numeral 1 and is used for the production of carbon fibers.
- the oxidation furnace 1 comprises a housing 2, which in turn is composed of two vertical longitudinal walls 2a, 2b, two vertical end walls 2c, 2d, a top wall 2e and a bottom wall 2f.
- the housing 2 is gas-tight.
- Figure 2 indicated vertical center plane S-S formed.
- the process chamber 6 In the central region of the process chamber 6 is a generally provided with the reference numeral 13 blowing device, which will be explained in more detail below.
- suction devices 14 and 15 In the two outer end regions of the process chamber 6, adjacent to the inlet and outlet regions 3, 4, there are suction devices 14 and 15, respectively.
- two opposing air circuits are maintained: Starting, for example, from the suction devices 14, 15, the air in the sense of the arrows visible in Figure 2 through the air ducts 7 and 12 to a filter 16 or 17 and then through a heating unit 18a and 18b guided in the air guide 8 and 11 respectively. From the air duct 8 and 11, the heated air is sucked by a fan 21 a and 21 b and in the Air ducts 9 and 10 blown. From there, the air passes in each case into one half of the injection device 13 described in more detail below, from there in opposite directions flowing into the process space 6 and from there to the suction device 14 or 15, whereby the two air circuits are closed.
- outlets 30a, 30b are provided in the wall of the housing 2. These can be used to remove those gas or air volumes which either arise during the oxidation process or enter the process space 6 as fresh air via the inlet and outlet areas 3, 4 in order to maintain the air balance in the oxidation furnace 1 ,
- the injector 13 is constructed in detail as follows:
- blow-in boxes 18 It comprises two “stacks" of blow-in boxes 18. Each of these blow-in boxes 18 has the shape of a hollow square, the longer dimension extending transversely to the longitudinal direction of the process space 6 over its entire width. The respectively facing the process space 6
- Narrow sides of the blow boxes 18 are formed as perforated plates 18a.
- one end face of each injection box 18 is connected to the air guide space 9 or air guide space 10 in such a way that the from.
- Fan 20 or 21 conveyed air is blown into the interior of the respective injection box 18 and can escape from there via the perforated plates 18 a.
- the vertical distance between two injection boxes 18 in a stack is the same as the distance between the two stacks 18 in the longitudinal direction of the process space 6.
- the two suction devices 14, 15 are essentially of a respective stack of suction boxes 19
- the holes of the perforated plates 19a can have any geometric shape.
- the suction boxes 19 in the suction devices 14, 15 have the same vertical distance from each other as the
- the fibers 20 to be treated are fed to the oxidation furnace 1 via a deflection roller 21 and pass through
- Pulleys 24 and 25 are provided. After this
- the fiber 20 leaves the oxidation furnace 1 and is thereby guided over a further deflection roller 26.
- Exit from the oxidation furnace 1 is at least one
- Oxidation step essentially completed. Further oxidation steps can follow.
- FIG. 3 shows how the air flows in the region of the injection device 13 run. Due to the provided on both narrow longitudinal sides of the inlet boxes 18 perforated plates 18 a can in the interior of each injection box 18 from the corresponding fan
- Figures 4 and 5 show an injection box 118, which in an alternative embodiment of a
- Oxidation furnace can be used and each
- Injection box 118 used whose dimension parallel to the longitudinal direction of the process chamber 6 corresponds to the sum of the corresponding dimensions of two injection boxes 18 of Figure 1.
- Top and bottom can escape air as
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Fibers (AREA)
- Tunnel Furnaces (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201010007480 DE102010007480B3 (de) | 2010-02-09 | 2010-02-09 | Oxidationsofen |
PCT/EP2011/000415 WO2011098223A1 (de) | 2010-02-09 | 2011-01-29 | Oxidationsofen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2534287A1 true EP2534287A1 (de) | 2012-12-19 |
EP2534287B1 EP2534287B1 (de) | 2014-11-05 |
Family
ID=44220316
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11701767.3A Active EP2534287B1 (de) | 2010-02-09 | 2011-01-29 | Oxidationsofen |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2534287B1 (de) |
JP (1) | JP5856082B2 (de) |
CN (1) | CN102782198B (de) |
DE (1) | DE102010007480B3 (de) |
ES (1) | ES2526296T3 (de) |
WO (1) | WO2011098223A1 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9217212B2 (en) | 2011-01-21 | 2015-12-22 | Despatch Industries Limited Partnership | Oven with gas circulation system and method |
US9598795B2 (en) * | 2013-04-26 | 2017-03-21 | Illinois Tool Works Inc. | Fiber oxidation oven with multiple independently controllable heating systems |
DE102013015841B4 (de) | 2013-09-24 | 2020-03-26 | Eisenmann Se | Oxidationsofen |
DE102014009244B4 (de) * | 2014-06-20 | 2016-07-28 | Eisenmann Se | Oxidationsofen |
US10676847B2 (en) * | 2014-11-07 | 2020-06-09 | Illinois Tool Works Inc. | Discharge nozzle plate for center-to-ends fiber oxidation oven |
US10458710B2 (en) * | 2014-11-07 | 2019-10-29 | Illinois Tool Works Inc. | Supply plenum for center-to-ends fiber oxidation oven |
JP2017089050A (ja) * | 2015-11-10 | 2017-05-25 | 東邦テナックス株式会社 | 炭素繊維の製造方法及び耐炎化繊維の製造方法 |
DE102016116057A1 (de) | 2016-08-29 | 2018-03-15 | Eisenmann Se | Oxidationsofen |
US12060659B2 (en) * | 2018-11-12 | 2024-08-13 | Toray Industries, Inc. | Method of producing flame-resistant fiber bundle and carbon fiber bundle and flameproofing furnace |
CN110578186B (zh) * | 2019-09-18 | 2024-03-15 | 浙江精工集成科技股份有限公司 | 一种端对端吹风结构的预氧化炉 |
CN110485000B (zh) * | 2019-09-18 | 2023-06-09 | 浙江精工集成科技股份有限公司 | 一种预氧化炉 |
CN110578190B (zh) * | 2019-09-18 | 2024-03-15 | 浙江精工集成科技股份有限公司 | 一种预氧化炉回风口网孔板的在线抽插结构及预氧化炉 |
CN115279958B (zh) | 2020-03-18 | 2024-04-16 | 东丽株式会社 | 耐燃化纤维束及碳纤维束的制造方法以及耐燃化炉 |
CN114351292B (zh) * | 2022-02-11 | 2022-09-09 | 新创碳谷控股有限公司 | 一种多规格丝束适应型碳纤维预氧化炉 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4515561A (en) * | 1983-03-07 | 1985-05-07 | Despatch Industries, Inc. | Fiber treatment oven |
US4559010A (en) * | 1984-05-01 | 1985-12-17 | Toray Industries, Inc. | Apparatus for producing oxidized filaments |
DE69027737T2 (de) * | 1989-02-23 | 1996-12-05 | Mitsubishi Rayon Co | Flammfestmachender apparat |
JP2971498B2 (ja) * | 1989-02-23 | 1999-11-08 | 三菱レイヨン株式会社 | 耐炎化処理装置 |
US5263265A (en) * | 1989-10-23 | 1993-11-23 | Despatch Industries | Convection/radiation material treatment oven |
JPH04108117A (ja) * | 1990-08-21 | 1992-04-09 | Mitsubishi Rayon Co Ltd | 耐炎化処理装置 |
EP0848090B1 (de) * | 1996-12-16 | 2001-08-08 | Toray Industries, Inc. | Wärmebehandlungsofen für Fasern |
JP5207796B2 (ja) * | 2008-03-28 | 2013-06-12 | 三菱レイヨン株式会社 | 耐炎化処理装置および前駆体繊維束の耐炎化処理方法 |
-
2010
- 2010-02-09 DE DE201010007480 patent/DE102010007480B3/de active Active
-
2011
- 2011-01-29 ES ES11701767.3T patent/ES2526296T3/es active Active
- 2011-01-29 WO PCT/EP2011/000415 patent/WO2011098223A1/de active Application Filing
- 2011-01-29 JP JP2012552293A patent/JP5856082B2/ja active Active
- 2011-01-29 CN CN201180008871.2A patent/CN102782198B/zh active Active
- 2011-01-29 EP EP11701767.3A patent/EP2534287B1/de active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2011098223A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP5856082B2 (ja) | 2016-02-09 |
EP2534287B1 (de) | 2014-11-05 |
DE102010007480B3 (de) | 2011-07-21 |
CN102782198B (zh) | 2014-09-03 |
JP2013519005A (ja) | 2013-05-23 |
CN102782198A (zh) | 2012-11-14 |
ES2526296T3 (es) | 2015-01-09 |
WO2011098223A1 (de) | 2011-08-18 |
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