EP2534287A1 - Four à oxydation - Google Patents

Four à oxydation

Info

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
Application number
EP11701767A
Other languages
German (de)
English (en)
Other versions
EP2534287B1 (fr
Inventor
Karl Berner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eisenmann SE
Original Assignee
Eisenmann SE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Eisenmann SE filed Critical Eisenmann SE
Publication of EP2534287A1 publication Critical patent/EP2534287A1/fr
Application granted granted Critical
Publication of EP2534287B1 publication Critical patent/EP2534287B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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

L'invention concerne un four à oxydation (1) pour traiter des fibres (20) par oxydation, en particulier pour fabriquer des fibres de carbone, comprenant de manière connue une chambre de traitement (6) située à l'intérieur d'une enveloppe (2), un dispositif d'insufflation (13) disposé dans la zone centrale de la chambre de traitement (6), un dispositif d'aspiration (14, 15) placé dans chacune des deux zones d'extrémité opposées de la chambre de traitement (6), au moins un ventilateur (21) qui fait circuler l'air chaud à travers le dispositif d'insufflation (13), la chambre de traitement (6) et les deux dispositifs d'aspiration (14, 15), ainsi qu'au moins un dispositif de chauffage (18) situé dans le chemin d'écoulement de l'air chaud en circulation. Le dispositif d'insufflation (13) comprend une pluralité de caissons d'insufflation (18; 118) qui sont superposés à distance les uns des autres verticalement et présentent une ouverture d'entrée et des ouvertures de sortie pour l'air chaud sur chacun des côtés opposés. Optionnellement, le dispositif d'insufflation (13) comprend deux empilements de caissons d'insufflation (18) superposés à distance les uns des autres qui sont disposés de manière espacée l'un derrière l'autre, vus dans le sens de déplacement des fibres (20), et/ou les caissons encastrés (118) d'un empilement présentent au moins une ouverture de sortie additionnelle (130) pour l'air chaud dans le côté supérieur et le côté inférieur. Cette conception permet d'augmenter la longueur effective de la distance sur laquelle les fibres sont exposées au processus d'oxydation, comparativement aux constructions classiques, de sorte que le four peut présenter en particulier une hauteur réduite.
EP11701767.3A 2010-02-09 2011-01-29 Four d'oxydation Active EP2534287B1 (fr)

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 (fr) 2010-02-09 2011-01-29 Four à oxydation

Publications (2)

Publication Number Publication Date
EP2534287A1 true EP2534287A1 (fr) 2012-12-19
EP2534287B1 EP2534287B1 (fr) 2014-11-05

Family

ID=44220316

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11701767.3A Active EP2534287B1 (fr) 2010-02-09 2011-01-29 Four d'oxydation

Country Status (6)

Country Link
EP (1) EP2534287B1 (fr)
JP (1) JP5856082B2 (fr)
CN (1) CN102782198B (fr)
DE (1) DE102010007480B3 (fr)
ES (1) ES2526296T3 (fr)
WO (1) WO2011098223A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
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
EP3882382A4 (fr) * 2018-11-12 2022-08-17 Toray Industries, Inc. Procédé permettant de produire un faisceau de fibres résistant à la flamme et faisceau de fibres de carbone et four d'ignifugation
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
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
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
JPWO2021187518A1 (fr) 2020-03-18 2021-09-23
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)

* Cited by examiner, † Cited by third party
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
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
US5142796A (en) * 1989-02-23 1992-09-01 Mitsubishi Rayon Co., Ltd. Flameresisting apparatus
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 (fr) * 1996-12-16 2001-08-08 Toray Industries, Inc. Four de traitement pour fibres
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011098223A1 *

Also Published As

Publication number Publication date
CN102782198B (zh) 2014-09-03
WO2011098223A1 (fr) 2011-08-18
JP2013519005A (ja) 2013-05-23
CN102782198A (zh) 2012-11-14
JP5856082B2 (ja) 2016-02-09
EP2534287B1 (fr) 2014-11-05
ES2526296T3 (es) 2015-01-09
DE102010007480B3 (de) 2011-07-21

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