KR20110078250A - Heat treatment apparatus for oxidation of carbon fiber with heating distribution means - Google Patents

Heat treatment apparatus for oxidation of carbon fiber with heating distribution means Download PDF

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KR20110078250A
KR20110078250A KR1020090135009A KR20090135009A KR20110078250A KR 20110078250 A KR20110078250 A KR 20110078250A KR 1020090135009 A KR1020090135009 A KR 1020090135009A KR 20090135009 A KR20090135009 A KR 20090135009A KR 20110078250 A KR20110078250 A KR 20110078250A
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hot air
heat treatment
distribution means
treatment apparatus
carbon fiber
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KR1020090135009A
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KR101574802B1 (en
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조철호
방윤혁
김성룡
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주식회사 효성
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    • 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
    • D01F9/127—Carbon filaments; Apparatus specially adapted for the manufacture thereof by thermal decomposition of hydrocarbon gases or vapours or other carbon-containing compounds in the form of gas or vapour, e.g. carbon monoxide, alcohols
    • D01F9/133—Apparatus therefor
    • 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

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Inorganic Fibers (AREA)

Abstract

PURPOSE: A heat treatment apparatus for oxidation of carbon fiber with hot air distribution means is provided to keep air volume and temperature inside a thermal processing chamber uniform by having a hot air distribution means at the upper part of the thermal processing chamber, in which vertical hot air of the heat treatment apparatus for oxidation flows in. CONSTITUTION: The heat treatment apparatus for oxidation of carbon fiber with hot air distribution means includes a thermal processing chamber; a folding roller; and a hot air distribution means. In the thermal processing chamber, vertical hot air flows in through a top vent plate by a hot air distribution means, and a precursor fiber is oxidized. The folding roller puts the precursor fiber in or out the thermal processing chamber. The hot air distribution means(40) is located in the top vent plate of the thermal processing chamber top, in which the vertical hot air flows in.

Description

열풍분배수단을 구비한 탄소섬유용 산화 열처리장치{Heat treatment apparatus for oxidation of carbon fiber with heating distribution means}Heat treatment apparatus for oxidation of carbon fiber with heating distribution means

본 발명은 열풍분배수단을 구비한 탄소섬유용 산화 열처리장치에 관한 것으로서, 더욱 상세하게는 산화 열처리장치의 수직열풍이 유입되는 열처리실 상부에 열풍분배수단을 구비하여 열처리실 내부의 풍량 및 온도를 균일하게 할 수 있는 열풍분배수단을 구비한 탄소섬유용 산화 열처리장치에 관한 것이다.The present invention relates to an oxidizing heat treatment apparatus for carbon fiber having a hot air distribution means, and more particularly, a hot air distribution means on an upper portion of a heat treatment chamber into which a vertical hot air flows from the oxidizing heat treatment apparatus is introduced. The present invention relates to an oxidizing heat treatment apparatus for carbon fibers having a uniform hot air distribution means.

아크릴로니트릴(acrylonitrile)계 중합체로부터 제조되는 탄소섬유, 소위 PAN(Polyacrylonitrile)계 탄소섬유는 강도가 매우 우수하여, 탄소섬유의 원료로서 많이 사용되고 있다. 최근에는 전체 탄소섬유의 90%이상이 PAN계 탄소섬유이다. 또한, PAN계 탄소섬유는 2차전지용 탄소 전극 재료 및 탄소 필름 등에도 적용가능성이 있기 때문에, 이에 대한 연구개발도 활발하게 진행되고 있다. Carbon fibers made from acrylonitrile polymers, so-called PAN (Polyacrylonitrile) carbon fibers, have excellent strength and are widely used as raw materials for carbon fibers. Recently, more than 90% of all carbon fibers are PAN-based carbon fibers. In addition, since PAN-based carbon fibers have applicability to carbon electrode materials for secondary batteries, carbon films, and the like, research and development on these have been actively conducted.

아크릴로니트릴계 중합체로부터 탄소섬유를 제조하는 경우에는 아크릴로니트릴계 중합체를 방사하여 얻어진 아크릴 섬유, 즉 탄소섬유용 전구체를 산화 분위기 에서 200~400℃로 내염화 처리를 실시하는데, 이렇게 제조된 섬유를 내염화섬유라고 한다. 이렇게 얻어진 내염화섬유를 불활성가스 분위기에서 800~2000℃로 탄화처리하여 탄소섬유를 제조한다. 또한, 이렇게 얻어진 탄소섬유를 더욱 고온의 불활성가스 중에서 처리하는 경우도 있는데, 이렇게 얻어진 섬유를 흑연섬유라고 한다.In the case of producing carbon fibers from acrylonitrile-based polymers, the acrylic fibers obtained by spinning acrylonitrile-based polymers, that is, precursors for carbon fibers, are subjected to flame resistance treatment at 200 to 400 ° C. in an oxidizing atmosphere. Is called flame resistant fiber. The flame resistant fiber thus obtained is carbonized at 800 to 2000 ° C. in an inert gas atmosphere to produce carbon fiber. In addition, the carbon fibers thus obtained are sometimes treated in a higher temperature inert gas, and the fibers thus obtained are called graphite fibers.

탄소섬유 제조에 있어 산화 열처리장치는 열처리실 외부에 설치된 소정 세트의 폴딩롤러를 구비하고 있으며, 프리커서 섬유는 상기 폴딩롤러에 의하여 슬릿을 통하여 열처리실 내부로 유입된다. 열풍순환로에 구비된 히터로 가열된 열풍은 팬에 의하여 상방유로로 이동하며 열처리실 상부의 상부통기판을 통하여 열처리실에서 패스를 형성하여 주행하고 있는 프리커서 섬유사이를 통과하면서 프리커서 섬유를 산화열처리 시킨다.In the production of carbon fiber, the oxidation heat treatment apparatus includes a predetermined set of folding rollers installed outside the heat treatment chamber, and the precursor fiber is introduced into the heat treatment chamber through the slit by the folding roller. The hot air heated by the heater provided in the hot air circulation passage moves to the upper flow path by the fan and oxidizes the precursor fiber while passing through the precursor fibers running by forming a path in the heat treatment chamber through the upper vent board at the top of the heat treatment chamber. Heat treatment

상부통기판을 통하여 열처리실 내부로 유입되는 열풍이 열처리실 내부로 열풍을 균일하게 공급하지 못함에 따라 필라멘트의 밀도편차를 크게 함으로서 탄소섬유의 물성이 불균일해해지는 문제점이 있다. Since hot air flowing into the heat treatment chamber through the upper vent board does not uniformly supply the hot air into the heat treatment chamber, there is a problem in that the physical properties of the carbon fiber become uneven by increasing the density deviation of the filament.

본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로서, 산화 열처리장치의 수직열풍이 유입되는 열처리실 상부에 열풍분배수단을 구비하여 열처리실 내부의 풍량 및 온도를 균일하게 할 수 있는 열풍분배수단을 구비한 탄소섬유용 산화 열처리장치를 제공함에 그 목적이 있다.The present invention has been made in order to solve the above problems, the hot air distribution means for providing a uniform air flow rate and temperature inside the heat treatment chamber by having a hot air distribution means on the upper heat treatment chamber in which the vertical hot air of the oxidation heat treatment apparatus is introduced Its purpose is to provide an oxidation heat treatment apparatus for a carbon fiber having a.

상술한 바와 같은 목적을 구현하기 위한 본 발명의 열풍분배수단을 구비한 탄소섬유용 산화 열처리장치는 열풍공급수단, 상기 열풍공급수단에 의하여 상부통기판을 통하여 수직열풍이 유입되어 프리커서 섬유를 산화시키는 열처리실 및 상기 프리커서 섬유를 상기 열처리실에 유입 또는 유출하는 폴딩롤러를 포함하는 탄소섬유용 산화 열처리장치에 있어서, 수직열풍이 유입되는 열처리실 상부의 상기 상부통기판에 열풍분배수단을 구비하여 열처리실 내부의 풍량 및 온도를 균일하게 하는 것을 특징으로 한다. Oxidation heat treatment apparatus for carbon fiber having a hot air distribution means of the present invention for realizing the object as described above is a hot air supply means, the vertical hot air flows through the upper vent board by the hot air supply means to oxidize the precursor fiber In the oxidation heat treatment apparatus for carbon fiber comprising a heat treatment chamber for the inlet and outlet of the heat treatment chamber and the precursor fiber to the heat treatment chamber, hot air distribution means is provided in the upper vent board on the heat treatment chamber upper part of the vertical hot air flows; It is characterized in that the air volume and temperature inside the heat treatment chamber to be uniform.

또한 상기 열풍분배수단은 수직열풍이 유입되는 경로로부터 각각 독립적인 크기를 갖고 순차적으로 설치되는 제1,제2,제3 및 제4 다공판인 것을 특징으로 한다. In addition, the hot air distribution means is characterized in that the first, second, third and fourth perforated plate sequentially installed in a size independent from the path through which the vertical hot air flows.

또한 상기 제1 다공판은 500~400메시(mesh), 제2 다공판은 350~250메시, 제3 다공판은 200~100메시 및 제4 다공판은 50~10메시인 것을 특징으로 한다.In addition, the first porous plate is 500 to 400 mesh (mesh), the second porous plate is 350 to 250 mesh, the third porous plate is characterized in that the 200 to 100 mesh and the fourth porous plate is 50 to 10 mesh.

본 발명에 따른 열풍분배수단을 구비한 탄소섬유용 산화 열처리장치에 의하면, 산화 열처리장치의 수직열풍이 유입되는 열처리실 상부에 열풍분배수단을 구비하여 열처리실 내부의 풍량 및 온도를 균일하게 하므로써 탄소섬유의 물성균일화를 얻을 수 있는 장점이 있다. According to the oxidizing heat treatment apparatus for carbon fiber provided with the hot air distribution means according to the present invention, by providing a hot air distribution means in the upper part of the heat treatment chamber into which the vertical hot air of the oxidizing heat treatment apparatus is introduced, the temperature and temperature of the inside of the heat treatment chamber are uniformed. There is an advantage in that the physical properties of the fiber can be obtained.

이하 첨부한 도면을 참조하여 본 발명의 바람직한 실시예에 대한 구성 및 작용을 상세히 설명하면 다음과 같다. 여기서, 종래와 동일한 구성요소에 대해서는 동일한 도면부호를 사용하기로 한다.Hereinafter, the configuration and operation of the preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. Here, the same reference numerals will be used for the same components as the prior art.

도 1은 본 발명에 따른 열풍분배수단을 구비한 탄소섬유용 산화 열처리장치의 구성도이며, 도 2는 본 발명에 따른 열풍분배수단의 일실시예이다. 1 is a block diagram of an oxidizing heat treatment apparatus for a carbon fiber having a hot air distribution means according to the present invention, Figure 2 is an embodiment of the hot air distribution means according to the present invention.

도 1에서 보는 바와 같이, 산화 열처리장치(100)는 열처리실(50) 내부에는 다수개의 패스를 형성하여 프리커서 섬유(10)가 주행하고 있으며, 상기 프리커서 섬유(10)는 열처리실(50) 외부에 설치된 소정 세트의 폴딩롤러(20)에 의해 폴딩되어 슬릿(30)을 통하여 열처리실(50)에 반복 공급된다. As shown in FIG. 1, the oxidizing heat treatment apparatus 100 forms a plurality of paths inside the heat treatment chamber 50 so that the precursor fiber 10 travels, and the precursor fiber 10 is heated in the heat treatment chamber 50. The sheet is folded by a predetermined set of folding rollers 20 externally and repeatedly supplied to the heat treatment chamber 50 through the slit 30.

여기서 상기 프리커서 섬유(10)를 산화열처리하기 위한 열풍발생공급수단(도시하지는 않음)은 열처리실 외부에 설치되는 히터에 의하여 발생된 열풍이 상방열풍유로를 따라 상기 열처리실(50) 상측으로부터 상부통기판을 통하여 열처리실(50) 내부로 유입되어 하부통기판을 통하여 배출되며 배출된 열풍은 하방열풍유로를 따라 히터로 순환된다. 산화열처리 장치에서의 열풍발생공급수단은 해당기술의 통상의 지식을 갖는 자에게는 자명한 사항이므로 자세한 설명은 생략한다.Here, the hot wind generation supply means (not shown) for oxidative heat treatment of the precursor fiber 10 has hot air generated by a heater installed outside the heat treatment chamber from above the heat treatment chamber 50 along the upper hot air flow passage. It enters into the heat treatment chamber 50 through the vent board and is discharged through the lower vent board. Since the hot air generation supply means in the oxidation heat treatment apparatus is obvious to those skilled in the art, detailed description thereof will be omitted.

또한 열풍분배수단(40)은 수직열풍이 유입되는 열처리실(50) 상부의 상기 상부통기판에 구비된다. 탄소섬유의 물성을 균일하게 하기 위해서는 프리커서 섬유의 개개의 필라멘트의 밀도를 균일하게 할 필요성이 있다. 따라서 열풍분배수단(40)을 이용하여 유입되는 수직열풍이 열처리실 내부 전체에 균일하게 공급되어 온도 및 열풍 풍량에 따른 편차를 작게 함으로서 프리커서 섬유의 밀도를 균일하게 할 수 있다. In addition, the hot air distribution means 40 is provided on the upper vent board above the heat treatment chamber 50 into which the vertical hot air flows. In order to make the physical property of carbon fiber uniform, it is necessary to make uniform the density of each filament of precursor fiber. Therefore, the vertical hot air introduced by using the hot air distribution means 40 is uniformly supplied to the entire inside of the heat treatment chamber, thereby making it possible to make the density of the precursor fiber uniform by reducing the variation according to the temperature and the amount of hot air.

도 2에서 보는 바와 같이, 본 발명의 열풍분배수단(40)은 열처리실 상부로 부터 수직열풍이 유입되는 경로로부터 각각 독립적인 크기를 갖고 순차적으로 설치되는 제1 다공판(41),제2 다공판(42),제3 다공판(43) 및 제4 다공판(44)으로 구성된다. 여기서 다공판의 구멍의 크기를 나타내는 단위로 1인치 길이안에 있는 눈금의 수인 메시(mesh)로 정의된다.As shown in Figure 2, the hot air distribution means 40 of the present invention is the first porous plate 41, the second perforated and sequentially installed each having a size independent from the vertical hot air flow path from the heat treatment chamber top The plate 42, the third porous plate 43, and the fourth porous plate 44 are constituted. Here, it is defined as mesh, which is the number of scales within 1 inch of the unit indicating the size of the hole of the perforated plate.

여기서 히터에 의하여 가열된 열풍은 팬을 통하여 열처리실 상부에 설치된 상기 500~400메시(mesh)를 갖는 제1 다공판(41)을 첫번째로 통과하며, 그 후 순차적으로 350~250메시를 갖는 제2 다공판(42), 200~100메시를 갖는 제3 다공판(43) 및 50~10메시를 갖는 제4 다공판(44)을 순차적으로 통과하여 열처리실 내부로 공급된다. Here, the hot air heated by the heater first passes through the first porous plate 41 having the 500 to 400 mesh installed on the heat treatment chamber through a fan, and then sequentially has the 350 to 250 mesh. The second porous plate 42, the third porous plate 43 having 200 to 100 mesh, and the fourth porous plate 44 having 50 to 10 mesh are sequentially passed through and are supplied into the heat treatment chamber.

즉 수직열풍이 점차적으로 구멍크기가 커지는 4개의 층을 갖는 다공판(40)을 통과함에 따라 열처리실 내부로 풍량이 고르게 분배되며, 이에 따라 열처리실 내부의 온도가 균일하게 됨을 알수 있다. 본 발명의 열풍분배수단을 이용하여 열처리실의 풍량편차(좌우편차)는 0.2m/sec 이하, 온도편차는 1℃이하이며, 프리커서 섬유의 개개간 필라멘트의 밀도편차(최대값-최소값)sms 0.003g/cm3이하의 프리커서 섬유를 얻을 수 있다. That is, as the vertical hot air passes through the porous plate 40 having the four layers gradually increasing in size, the air volume is evenly distributed into the heat treatment chamber, and thus the temperature in the heat treatment chamber is uniform. The air volume deviation (left and right deviation) of the heat treatment chamber using the hot air distribution means of the present invention is 0.2m / sec or less, the temperature deviation is 1 ℃ or less, the density deviation (maximum value-minimum value) sms of individual filaments of precursor fibers A precursor fiber of 0.003 g / cm 3 or less can be obtained.

본 발명은 상기 실시예에 한정되지 않고 본 발명의 기술적 요지를 벗어나지 아니하는 범위 내에서 다양하게 수정·변형되어 실시될 수 있음은 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 있어서 자명한 것이다.It is apparent to those skilled in the art that the present invention is not limited to the above embodiments and can be practiced in various ways without departing from the technical spirit of the present invention. will be.

도 1은 본 발명에 따른 열풍분배수단을 구비한 탄소섬유용 산화 열처리장치의 구성도1 is a block diagram of an oxidizing heat treatment apparatus for carbon fiber having a hot air distribution means according to the present invention

도 2는 본 발명에 따른 열풍분배수단의 일실시예이다. 2 is an embodiment of a hot air distribution means according to the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

10:프리커서 섬유 20:폴딩롤러10: precursor fiber 20: folding roller

30:슬릿 40:다공판30: Slit 40: perforated plate

50:열처리실 100:산화 열처리장치50: heat treatment chamber 100: oxidation heat treatment apparatus

Claims (3)

열풍공급수단, 상기 열풍공급수단에 의하여 상부통기판을 통하여 수직열풍이 유입되어 프리커서 섬유를 산화시키는 열처리실 및 상기 프리커서 섬유를 상기 열처리실에 유입 또는 유출하는 폴딩롤러를 포함하는 탄소섬유용 산화 열처리장치에 있어서,For the carbon fiber comprising a hot air supply means, a heat treatment chamber for injecting vertical hot air through the upper vent board by the hot air supply means to oxidize the precursor fiber, and a folding roller for inflow or outflow of the precursor fiber into the heat treatment chamber. In the oxidation heat treatment apparatus, 수직열풍이 유입되는 열처리실 상부의 상기 상부통기판에 열풍분배수단을 구비하여 열처리실 내부의 풍량 및 온도를 균일하게 하는 것을 특징으로 하는 열풍분배수단을 구비한 탄소섬유용 산화 열처리장치. An oxidative heat treatment apparatus for a carbon fiber having hot air distribution means, characterized in that the air flow distribution means is provided on the upper vent board on the heat treatment chamber in which the vertical hot air flows, to equalize the air volume and the temperature inside the heat treatment chamber. 제 1항에 있어서,The method of claim 1, 상기 열풍분배수단은 수직열풍이 유입되는 경로로부터 각각 독립적인 크기를 갖고 순차적으로 설치되는 제1,제2,제3 및 제4 다공판인 것을 특징으로 하는 열풍분배수단을 구비한 탄소섬유용 산화 열처리장치.The hot air distribution means is an oxidation for carbon fiber having a hot air distribution means, characterized in that the first, second, third and fourth perforated plates sequentially installed and each having a size independent from the vertical hot air flow path. Heat treatment device. 제 2항에 있어서,3. The method of claim 2, 상기 제1 다공판은 500~400메시(mesh), 제2 다공판은 350~250메시, 제3 다공판은 200~100메시 및 제4 다공판은 50~10메시인 것을 특징으로 하는 열풍분배수단 을 구비한 탄소섬유용 산화 열처리장치.The first porous plate is 500 to 400 mesh (mesh), the second porous plate is 350 to 250 mesh, the third porous plate is 200 to 100 mesh and the fourth porous plate is 50 to 10 mesh, characterized in that the hot air distribution Oxidation heat treatment apparatus for carbon fiber provided with a means.
KR1020090135009A 2009-12-31 2009-12-31 Heat treatment apparatus for oxidation of carbon fiber with heating distribution means KR101574802B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101296718B1 (en) * 2011-07-20 2013-08-20 최대규 A manufacture apparatus for carbon fiber
KR102319723B1 (en) * 2021-02-19 2021-11-03 주식회사 원준 Oxidation furnace for manufacturing carbon fiber

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4292771B2 (en) 2001-09-27 2009-07-08 東レ株式会社 Heat treatment furnace
JP5205767B2 (en) * 2006-02-17 2013-06-05 東レ株式会社 Heat treatment furnace and carbon fiber manufacturing method
JP2007217835A (en) 2006-02-17 2007-08-30 Toho Tenax Co Ltd Flameproofing treatment oven
JP4809757B2 (en) * 2006-12-07 2011-11-09 三菱レイヨン株式会社 Flame-resistant heat treatment apparatus and method for producing flame-resistant fiber bundle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101296718B1 (en) * 2011-07-20 2013-08-20 최대규 A manufacture apparatus for carbon fiber
KR102319723B1 (en) * 2021-02-19 2021-11-03 주식회사 원준 Oxidation furnace for manufacturing carbon fiber

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