EP2534286A1 - Oxidation furnace - Google Patents
Oxidation furnaceInfo
- Publication number
- EP2534286A1 EP2534286A1 EP11701209A EP11701209A EP2534286A1 EP 2534286 A1 EP2534286 A1 EP 2534286A1 EP 11701209 A EP11701209 A EP 11701209A EP 11701209 A EP11701209 A EP 11701209A EP 2534286 A1 EP2534286 A1 EP 2534286A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air
- process space
- suction
- fibers
- hot air
- 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 34
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 58
- 238000007664 blowing Methods 0.000 claims abstract description 6
- 230000001590 oxidative effect Effects 0.000 claims abstract description 6
- 239000000835 fiber Substances 0.000 claims description 23
- 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
- 238000010276 construction Methods 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 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 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000000605 extraction Methods 0.000 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 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000004615 ingredient 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
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
- F26B13/005—Seals, locks, e.g. gas barriers for web drying enclosures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
- F26B13/06—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement with movement in a sinuous or zig-zag path
- F26B13/08—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement with movement in a sinuous or zig-zag path using rollers
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/02—Heating arrangements using combustion heating
- F26B23/022—Heating arrangements using combustion heating incinerating volatiles in the dryer exhaust gases, the produced hot gases being wholly, partly or not recycled into the drying enclosure
Definitions
- the invention relates to an oxidation furnace for the oxidative treatment of fibers, in particular for the production of carbon fibers, with a) a housing which is gas-tight except for inlet and outlet areas for the fibers; b) a process space located in the interior of the housing; c) a blowing device with which hot air can be injected into the process space; at least one suction device arranged in an end region of the process space, which sucks hot air from the process space and comprises a plurality of vertically spaced suction boxes, the at least one outlet opening for the hot air and at one side at least one communicating with the process space inlet opening for the have hot air; at least one fan that circulates the hot air through the sparger, the process space and the suction device; f) at least one heating device located in the flow path of the hot circulating air; g) guide rollers which serpentine the fibers tig through the spaces between superimposed extraction boxes leads.
- the flow direction can be aligned transversely to the barrel direction vertically or horizontally.
- Increasingly gaining acceptance of such oxidation furnace which have an air flow on the principle of "center-to-end".
- the hot air in the middle region of the process chamber in both directions ie in the direction of the opposite ends of the process chamber, blown out and sucked off again by suction at these two ends of the process chamber.
- the following description is based on the example of the "center-to-end" air duct; but the invention is not limited thereto.
- the process space can also be considered as a zone that repeats in the longitudinal direction of the furnace for different temperatures and air flows.
- Furnace housed, in particular, the furnace can be built lower.
- At least one inlet opening communicating with the process space is provided in the outward-pointing suction box, that is to say from the process space center.
- the furnace can be kept lower. There are a number of advantages associated with this: as few serpentine passages of the fibers through the
- Process space may be required, pulleys for the threads and lock facilities, which
- Inlet openings are provided in two opposite sides of the suction boxes. By selecting the total cross-sections of those on opposite sides
- Inlet openings can be set the proportion of air that is not already facing inward
- Inlet openings is sucked but flows through the spaces between the suction boxes to the outside.
- lock devices are provided in the inlet regions of the housing, which are provided for each between the suction boxes
- 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;
- FIG. 3 shows a detail enlargement from FIG. 1 in the region of a suction device
- FIG. 4 shows a section, similar to FIG. 3, in which FIG
- FIG. 1 in which an oxidation furnace is shown, 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 comprises two vertical longitudinal walls 2a, 2b, two
- Lock devices 22 are provided, gas-tight.
- Air duct 8 and 11 the heated air from
- Air ducts 9 and 10 blown. From there, the air enters each half of the injection device 13, from there in opposite directions flowing in
- outlets 30a, 30b are provided in the wall of the housing 2. These can be used to remove those gas or air volumes which arise either during the oxidation process or as fresh air via the intake and exhaust air Exit areas 3, 4 enter the process space 6, so as to maintain the air balance in the oxidation furnace 1 upright.
- the discharged gases which are also poisonous
- Contain ingredients are fed to a thermal Machverbrennung.
- the heat thus obtained can be used at least for the sake of the anticipation of the fresh air supplied to the oxidation furnace 1.
- the blowing device 13 is as follows in detail
- blow boxes 18 each of these blow boxes 18 has the shape of a hollow cuboid, wherein the longer dimension is transverse to the longitudinal direction of the process chamber 6 via the
- each injection box 18 is available
- Perforated sheets 18a can emerge.
- both stacks are stacked at a slight distance; the two stacks of blow boxes 18 are in turn, in the longitudinal direction of the
- Ratios is the vertical distance between
- FIG. 14 is shown in FIG. 3, essentially formed by a respective stack of suction boxes 19, which extend in a similar manner to the blow boxes 18 in the transverse direction through the entire process space 6 and at their transverse to the longitudinal extension of the
- Process space 6 extending narrow sides are formed as perforated plates 19a.
- the holes in 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 blow boxes 18 in the injection device 13.
- the fibers 20 to be treated are fed to the oxidation furnace 1 via a deflection roller 21 and thereby pass through a lock device 22, which is inserted into the
- Figures 1 and 3 is not shown exactly and this serves to prevent any gas escaping from the process space 6 to the outside.
- the fibers 20 are then
- Process chamber 6 is repeated several times in a serpentine manner, for which purpose a plurality of deflecting rollers 24 and 25, which lie parallel one above the other with their axes, are provided in both end regions of the oxidation furnace 1
- the suction devices 115 are formed by a stack of overlying suction boxes 119. Unlike the suction boxes 19 of the first embodiment, the suction boxes 119 of Figure 4 are provided only on the outwardly facing narrow side with gas inlet openings, while the opposite narrow side facing the center of the process chamber 6 is closed. At the top and the bottom of the suction boxes 119 angle profiles 125 are attached, which extend transversely to the flow direction of the air (indicated by arrows). These angle profiles 125 have the task to increase the air resistance and to even out the suction.
- an individually adjustable throttle valve (not shown) may be provided to keep the extracted volume flow for each suction box 119 the same.
- the lock device 123 comprises an outer,
- each suction box 119 an air channel 128 is attached, which can be supplied in the direction of the arrow 129 with pressurized fresh air.
- angled air baffles 130 are integrally formed or attached to the air channel 128. As shown in the drawing and symbolized by small arrows, narrow passages for the air, which in this way in particular reach the region of the openings 127 in the sheet 126, arise between these air guide plates 130 and the sheet 126.
- Process chamber 106 each enters an airspace 131 and then encounters the through between the spaces between
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)
- Furnace Details (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010007481A DE102010007481B4 (en) | 2010-02-09 | 2010-02-09 | oxidation furnace |
PCT/EP2011/000318 WO2011098215A1 (en) | 2010-02-09 | 2011-01-26 | Oxidation furnace |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2534286A1 true EP2534286A1 (en) | 2012-12-19 |
EP2534286B1 EP2534286B1 (en) | 2014-07-16 |
Family
ID=44209829
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11701209.6A Active EP2534286B1 (en) | 2010-02-09 | 2011-01-26 | Oxidation furnace |
Country Status (6)
Country | Link |
---|---|
US (2) | US9441881B2 (en) |
EP (1) | EP2534286B1 (en) |
JP (1) | JP5856081B2 (en) |
CN (1) | CN102753741B (en) |
DE (1) | DE102010007481B4 (en) |
WO (1) | WO2011098215A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10473398B2 (en) | 2015-02-09 | 2019-11-12 | Ciariant International Ltd | Modular furnace, in particular for the oxidative stabilization of a carbon fiber starting material |
Families Citing this family (24)
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 |
DE102011010298B3 (en) * | 2011-02-03 | 2012-06-14 | Eisenmann Ag | oxidation furnace |
CN102660808A (en) * | 2012-03-21 | 2012-09-12 | 上海联川自动化科技有限公司 | Automatic threading device of carbon fiber oxidation furnace |
DE102013206984A1 (en) * | 2013-04-18 | 2014-10-23 | Bayerische Motoren Werke Aktiengesellschaft | Process for producing carbon fibers |
CN103320900A (en) * | 2013-06-14 | 2013-09-25 | 镇江奥立特机械制造有限公司 | Novel nine-hot-roller draw machine |
EP3018238A4 (en) * | 2013-07-02 | 2016-06-29 | Mitsubishi Rayon Co | Horizontal heat treatment device and method for producing carbon fibers using horizontal heat treatment device |
DE102013015841B4 (en) * | 2013-09-24 | 2020-03-26 | Eisenmann Se | Oxidation furnace |
CN103726132B (en) * | 2013-12-31 | 2016-02-10 | 湖南顶立科技有限公司 | A kind of heated air circulation type pre-oxidation furnace |
DE102014009243B3 (en) | 2014-06-20 | 2015-11-19 | Eisenmann Ag | oxidation furnace |
DE102014009244B4 (en) | 2014-06-20 | 2016-07-28 | Eisenmann Se | oxidation furnace |
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 |
CN105734722B (en) * | 2016-05-05 | 2018-06-05 | 广东中窑窑业股份有限公司 | A kind of Carbon fibe continuous production pre-oxidation furnace |
DE102016116057A1 (en) | 2016-08-29 | 2018-03-15 | Eisenmann Se | oxidation furnace |
CN106637516B (en) * | 2016-12-21 | 2019-04-02 | 湖南顶立科技有限公司 | Pre-oxidation furnace hot air circulating system |
DE102017123739A1 (en) | 2017-10-12 | 2019-04-18 | Eisenmann Se | Oven and method of treating material |
WO2019084618A1 (en) * | 2017-11-02 | 2019-05-09 | Furnace Engineering Pty Ltd | Controlled atmosphere recirculation oven |
CN110485000B (en) * | 2019-09-18 | 2023-06-09 | 浙江精工集成科技股份有限公司 | Pre-oxidation furnace |
CN110578189B (en) * | 2019-09-18 | 2024-03-15 | 浙江精工集成科技股份有限公司 | Return air case and pre-oxidation stove for pre-oxidation stove |
CN110578190B (en) * | 2019-09-18 | 2024-03-15 | 浙江精工集成科技股份有限公司 | Online suction and insertion structure of net hole plate of return air inlet of pre-oxidation furnace and pre-oxidation furnace |
CN110578186B (en) * | 2019-09-18 | 2024-03-15 | 浙江精工集成科技股份有限公司 | Pre-oxidation furnace with end-to-end blowing structure |
CN115279958B (en) | 2020-03-18 | 2024-04-16 | 东丽株式会社 | Flame-retardant fiber bundle, method for producing carbon fiber bundle, and flame-retardant furnace |
CN115522283B (en) * | 2022-09-30 | 2024-03-08 | 江苏鹰游纺机有限公司 | Method for solving inlet and outlet chimney effect of oxidation furnace |
CN116377617B (en) * | 2023-05-31 | 2023-08-04 | 新创碳谷集团有限公司 | End gas seal system for oxidation furnace |
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JPS59112063A (en) * | 1982-12-17 | 1984-06-28 | 東レ株式会社 | Heat treatment apparatus for preparing flame resistant yarn |
US4515561A (en) * | 1983-03-07 | 1985-05-07 | Despatch Industries, Inc. | Fiber treatment oven |
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US5142796A (en) | 1989-02-23 | 1992-09-01 | Mitsubishi Rayon Co., Ltd. | Flameresisting apparatus |
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US5137441A (en) | 1990-10-30 | 1992-08-11 | Minnesota Mining And Manufacturing Company | Mold assembly for making an ocular lens blank |
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JPH10237723A (en) * | 1996-12-16 | 1998-09-08 | Toray Ind Inc | The treatment furnace and production of carbon fiber |
EP0848090B1 (en) * | 1996-12-16 | 2001-08-08 | Toray Industries, Inc. | A heat treatment furnace for fibers |
US6027337A (en) * | 1998-05-29 | 2000-02-22 | C.A. Litzler Co., Inc. | Oxidation oven |
CA2409620C (en) * | 2001-03-26 | 2009-09-15 | Toho Tenax Co., Ltd. | Heat treatment apparatus for oxidation and operating method of the apparatus |
DE10123241C1 (en) * | 2001-05-12 | 2002-10-02 | Sgl Carbon Ag | Gas sealing system for reactor treating carbon fiber strand or tape, includes gas distribution system with nozzles and baffles near openings, to direct flow toward interior |
US6776611B1 (en) * | 2002-07-11 | 2004-08-17 | C. A. Litzler Co., Inc. | Oxidation oven |
CN2663895Y (en) * | 2003-11-20 | 2004-12-15 | 佳木斯电机股份有限公司 | Oxidation oven |
CN201193259Y (en) * | 2008-03-26 | 2009-02-11 | 威海拓展纤维有限公司 | Oxidation furnace |
JP5207796B2 (en) * | 2008-03-28 | 2013-06-12 | 三菱レイヨン株式会社 | Flame resistant treatment apparatus and precursor fiber bundle flame resistant treatment method |
DE102011010298B3 (en) * | 2011-02-03 | 2012-06-14 | Eisenmann Ag | oxidation furnace |
-
2010
- 2010-02-09 DE DE102010007481A patent/DE102010007481B4/en active Active
-
2011
- 2011-01-26 WO PCT/EP2011/000318 patent/WO2011098215A1/en active Application Filing
- 2011-01-26 JP JP2012552291A patent/JP5856081B2/en active Active
- 2011-01-26 EP EP11701209.6A patent/EP2534286B1/en active Active
- 2011-01-26 CN CN201180008912.8A patent/CN102753741B/en active Active
- 2011-01-26 US US13/577,506 patent/US9441881B2/en active Active
- 2011-01-29 US US13/577,468 patent/US8955235B2/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2011098215A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10473398B2 (en) | 2015-02-09 | 2019-11-12 | Ciariant International Ltd | Modular furnace, in particular for the oxidative stabilization of a carbon fiber starting material |
Also Published As
Publication number | Publication date |
---|---|
CN102753741A (en) | 2012-10-24 |
JP2013519004A (en) | 2013-05-23 |
EP2534286B1 (en) | 2014-07-16 |
US8955235B2 (en) | 2015-02-17 |
US20120304479A1 (en) | 2012-12-06 |
US20120304480A1 (en) | 2012-12-06 |
WO2011098215A1 (en) | 2011-08-18 |
US9441881B2 (en) | 2016-09-13 |
DE102010007481A1 (en) | 2011-08-11 |
DE102010007481B4 (en) | 2012-07-12 |
CN102753741B (en) | 2014-11-05 |
JP5856081B2 (en) | 2016-02-09 |
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