JP2009018963A - Carbon fiber fine particles, and manufacturing method and apparatus therefor - Google Patents

Carbon fiber fine particles, and manufacturing method and apparatus therefor Download PDF

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JP2009018963A
JP2009018963A JP2007182991A JP2007182991A JP2009018963A JP 2009018963 A JP2009018963 A JP 2009018963A JP 2007182991 A JP2007182991 A JP 2007182991A JP 2007182991 A JP2007182991 A JP 2007182991A JP 2009018963 A JP2009018963 A JP 2009018963A
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carbon fiber
fine
particles
cut
fine particles
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Hajime Kanekuni
肇 兼國
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Kotegawa Kogyo Kk
小手川工業株式会社
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<P>PROBLEM TO BE SOLVED: To obtain a carbon fiber fine particle which is finely pulverized to have an average diameter of shorter than 10 μm from a substandard article generated between manufacturing processes of carbon fiber, an industrial waste of carbon fiber, and a carbon fiber object such as a waste material article or the like. <P>SOLUTION: The carbon fiber article is cut into a small size, ground, and finely pulverized to obtain the carbon fiber fine particle having an average diameter of shorter than 10 μm. Moreover, the manufacture method and apparatus of the carbon fiber fine particle are characterized in that in obtaining the carbon fiber fine particle, the carbon fiber is cut into a small size, the carbon fiber cut into a small size is suctioned, collected, stored and finely pulverized by either of a jet mill, a ball mill, a bead mill grinder or the like which utilizes impact friction force making the carbon fiber fine particle before the utilization. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、炭素繊維微粒子及びその製造方法と装置に関し、特に炭素繊維の製造各工程間で発生する規格外品及び、炭素繊維の産業廃棄物、廃材品等の炭素繊維物から、微粒子平均10μm未満の微細粉末としたことを特徴とする炭素繊維微粒子及びその製造方法と装置に関する。 The present invention relates to carbon fiber fine particles and a method and apparatus for producing the same, and in particular, an average particle size of 10 μm from non-standard products generated during each process of carbon fiber production and carbon fiber such as carbon fiber industrial waste and waste material products. The present invention relates to a carbon fiber fine particle, and a method and apparatus for producing the same.
従来より、炭素繊維の粉砕について、種々の方法や装置が開発されてきた。下記、特許文献1は、炭素長繊維を粉砕するに際し、粗粉砕を切断応力を利用した粉砕機で行い、微粉砕を剪断衝撃応力を利用した粉砕機で行い、超微粉砕を衝撃摩擦応力を利用した粉砕機で行うようにした微粉炭素繊維の製造方法であり、各種粉砕工程装置を専用の機器で順次小さく粉砕していくことが開示されている。 Conventionally, various methods and apparatuses have been developed for pulverizing carbon fibers. In Patent Document 1 below, when carbon long fibers are pulverized, coarse pulverization is performed with a pulverizer using cutting stress, fine pulverization is performed with a pulverizer using shear impact stress, and ultrafine pulverization is performed with impact friction stress. It is a method for producing fine carbon fiber that is carried out with a used pulverizer, and it is disclosed that various pulverization process apparatuses are successively pulverized in a small amount by a dedicated device.
下記、特許文献2は、繊維を高温高圧の流体処理し、処理物を媒体中で粉砕することを特徴とする微細粉砕物の製造方法である。 Patent Document 2 below is a method for producing a finely pulverized product, characterized in that a fiber is subjected to a high-temperature and high-pressure fluid treatment and the treated product is pulverized in a medium.
下記、特許文献3は炭素繊維、カーボンナノファイバー、カーボンナノファイバー集合体を得る方法及びその材料を使用粉砕し、繊維長が10μm以上のカーボンナノファイバーを得ることを特徴としている。 The following Patent Document 3 is characterized in that carbon fibers, carbon nanofibers, a method for obtaining carbon nanofiber aggregates, and materials thereof are pulverized to obtain carbon nanofibers having a fiber length of 10 μm or more.
また、従来から、オリエント竪型粉砕機、ロータリーカッターミル、インペラーミルなど、各粉砕装置メーカーから市販されている粉砕機、装置がある。
特開平11−322314 特開2003−105126 特開2006−152512
Conventionally, there are pulverizers and apparatuses commercially available from manufacturers of various pulverizers, such as an orientation vertical pulverizer, a rotary cutter mill, and an impeller mill.
JP-A-11-322314 JP 2003-105126 A JP 2006-152512 A
しかしながら、従来のこれらの方法で、様々な箇所から発生する種々雑多な炭素繊維を粉砕するにはその繊維の仕訳管理が複雑困難であり、装置内で材料の絡まり、残留が起こり、半製品、成品とも繊維長さのバラツキが大きく、また、繊維を高温高圧の流体処理し、処理物を媒体中で粉砕するには前処理、後処理の特殊処理装置が必要であり、従来装置を使用し粉砕処理を行っても、10数μmまで粉砕するのが限度であり、その粉砕繊維長さのバラツキも大きく、本発明者らが意図する微粒子、特に、10μm未満の微粒子を効率よく得ることはできなかった。 However, in these conventional methods, in order to pulverize various miscellaneous carbon fibers generated from various places, it is difficult to manage the journals of the fibers. The product has a large variation in fiber length, and special treatment equipment for pre-treatment and post-treatment is required to process the fiber at high temperature and high pressure fluid and crush the treated material in the medium. Even if the pulverization treatment is performed, the limit is to pulverize to a few tens of μm, and the variation of the pulverized fiber length is large, and it is possible to efficiently obtain fine particles intended by the present inventors, particularly fine particles of less than 10 μm. could not.
本発明は、かかる従来の欠点を解消し、効率よく、大量生産に適し、炭素繊維の製造各工程間で発生する規格外品及び、炭素繊維の産業廃棄物、廃材品等の炭素繊維物から、微細粉末化した炭素繊維微粒子特に、10μm未満の微粒子を得ることを目的とする。 The present invention eliminates the above-mentioned conventional drawbacks, is efficient, suitable for mass production, and from non-standard products generated between each process of carbon fiber production and carbon fiber products such as carbon fiber industrial waste and waste material products. The object is to obtain finely pulverized carbon fiber fine particles, particularly fine particles of less than 10 μm.
さらに、この微粒子を容易に製造するための方法として、従来からの粉砕方法ではなく、細切、粉切という方法に主眼を置いた方法を開発発明し、初期の目的を達成することが出来た。すなわち、複数のカット刃より構成される回転刃を好ましくは少なくとも2段階以上のかつ多層に分け、これにより炭素繊維物を細切粉切し、細切粉切された炭素繊維粒子を吸引収集備蓄し、利用前に微細粉末化した炭素繊維微粒子とするための衝撃摩擦力を利用したジェットミル・ボールミル・ビーズミル粉砕機等のいずれかで微細化する製造方法により、10μm未満の炭素繊維微粒子を得ることが出来た。 Furthermore, as a method for easily producing the fine particles, a method focusing on the method of chopping and pulverizing instead of the conventional pulverization method was developed and invented, and the initial purpose could be achieved. . That is, a rotary blade composed of a plurality of cut blades is preferably divided into multiple layers in at least two stages, whereby carbon fiber materials are cut into fine pieces, and the carbon fiber particles cut into fine pieces are sucked and collected. Then, carbon fiber fine particles of less than 10 μm are obtained by a manufacturing method in which the carbon fiber fine particles are made into a fine powder before use, and are refined by a jet mill, a ball mill, a bead mill or the like using an impact frictional force. I was able to.
さらに、上記方法を得るための1実施例として下記に示す炭素繊維微粒子の製造装置を開発した。 Furthermore, the carbon fiber fine particle manufacturing apparatus shown below was developed as an example for obtaining the above method.
従来の粉砕機による従来方法では、様々な箇所から発生する種々雑多な炭素繊維を粉砕するには、材料の不均一性等から、装置内での材料の絡まり、残留が起こり、半製品、成品とも繊維長さのバラツキ発生等の問題があったが、本発明の粉切装置による方法によれば、その粉末繊維長さのバラツキも小さく、特に、10μm未満の微粒子を簡単に効率よく得ることができた。さらにこの炭素繊維微粒子により、炭素繊維の特徴である軽い、強い、変形しにくい、導電性、化学変化に強い、熱膨張がないなど多くの特徴を活かした新用途成品を開発し、従来廃物として処理されていた炭素繊維の材料再生利用拡大を目指すものである。 In the conventional method using a conventional pulverizer, in order to pulverize miscellaneous carbon fibers generated from various locations, material entanglement and residue occur due to material non-uniformity, etc., resulting in semi-finished products and finished products. However, according to the method using the powder cutting device of the present invention, the dispersion of the powder fiber length is small, and in particular, fine particles of less than 10 μm can be obtained easily and efficiently. I was able to. Furthermore, by using these carbon fiber fine particles, we have developed a new application product that takes advantage of many features such as light, strong, hard to deform, conductivity, resistance to chemical changes, and no thermal expansion, which are the characteristics of carbon fiber. The aim is to expand the recycling of carbon fibers that have been treated.
本発明は、炭素繊維の製造各工程間で発生する規格外品及び、炭素繊維の産業廃棄物、廃材品等の炭素繊維物を細切粉切、粉砕し、微細粉末とすることを特徴とする炭素繊維微粒子である。 The present invention is characterized by finely pulverizing and pulverizing non-standard products generated during each process of carbon fiber production and carbon fiber products such as carbon fiber industrial waste and waste material products. Carbon fiber fine particles.
また、前記炭素繊維微粒子を得るために、種々研究を重ね、前記炭素繊維物から、炭素繊維微粒子を得るに際し、炭素繊維を好ましくは3mm以下に細切粉切し、該粉切された炭素繊維粒子を吸引収集備蓄し、利用前に炭素繊維微粒子にするための衝撃摩擦力を利用したジェットミル・ボールミル・ビーズミル粉砕機等のいずれかで微細粉末化することにより炭素繊維微粒子の製造方法を確立した。 Further, in order to obtain the carbon fiber fine particles, various studies have been made, and when obtaining the carbon fiber fine particles from the carbon fiber material, the carbon fibers are preferably chopped to 3 mm or less, and the chopped carbon fibers are obtained. Establishing a method for producing carbon fiber fine particles by collecting and collecting the particles and making them into fine powders using a jet mill, ball mill, or bead mill grinder that uses impact frictional force to make carbon fiber fine particles before use. did.
また、前記炭素繊維物から、炭素繊維粒子を得るに際し、複数のカット刃より構成される回転刃を多段層に分け、炭素繊維物をこれにより細切粉切する方法が、細かくバラツキが少なく切る事が出来る有効な手段である。 In addition, when obtaining carbon fiber particles from the carbon fiber material, a method of dividing a rotary blade composed of a plurality of cutting blades into multi-stage layers and cutting the carbon fiber material by this into finely cut pieces with little variation. It ’s an effective way to do things.
また、本発明の炭素繊維微粒子を得るために、前記製造方法と共に、本発明の装置を完成したものである。すなわち、本装置は上部に投入口を設け、この投入口より投入された炭素繊維の規格外品や炭素繊維の産業廃棄物、廃材品等の炭素繊維物を、本装置内部に設けた複数個のカット刃より構成される回転刃を上部回転刃及び、下部回転刃、さらに必要により中間に何段かの中間回転刃を設けた多段層構造の回転刃ユニットとし、該回転刃群にて剪断力を用いて裁断、細切し、粉切することを特徴とする炭素繊維微粒子の製造装置の開発を行なった。この多層カット刃は下段になるほど外径を大きくし、回転周速を早くすることが好ましい。 Moreover, in order to obtain the carbon fiber fine particles of the present invention, the apparatus of the present invention is completed together with the production method. In other words, this device has an inlet at the top, and a plurality of carbon fiber materials such as non-standard carbon fiber products, carbon fiber industrial waste, waste material products, etc., which are supplied from this inlet, are provided inside the device. The rotary blade is composed of an upper rotary blade, a lower rotary blade, and, if necessary, a multi-layered rotary blade unit with several intermediate rotary blades in the middle. We have developed an apparatus for producing carbon fiber fine particles, which is characterized by cutting, chopping and pulverizing using force. It is preferable that the outer diameter of the multi-layer cutting blade is increased toward the lower stage to increase the rotational peripheral speed.
また、本装置上部投入口へ切断粉切された炭素繊維粒子が、カッター刃の回転風力により舞い上がるのを防止する為に、内面上部に飛散防止スカートを設け、これを投入口より投入される炭素繊維が滑り良く内部の回転刃へ落下到達するように、排出側の180度反対位置に落とす様に設けた。 In addition, in order to prevent the carbon fiber particles that have been cut and chopped into the upper inlet of this equipment from rising due to the rotating wind force of the cutter blade, a scattering prevention skirt is provided at the upper part of the inner surface. It was provided so that the fiber would drop to the opposite position of 180 degrees on the discharge side so that the fiber could slip and reach the internal rotary blade.
又、回転刃の下方位置に細切粉切された繊維粒子の規制セパレータを設け、さらに下部方向に裁断によってより細かく均一化するためにロータリーカッター刃を設け、粉切機の排出口手前に多孔プレートを設け、裁断された繊維粒子を排出口の外部に設けた集塵機で、集塵機の吸引力調整により粉切機内部の粉切された炭素繊維粒子を調整吸引収集する。 In addition, a fiber separator is provided at the lower position of the rotary blade, and a rotary cutter blade is provided in the lower direction to make it finer and uniform by cutting. A dust collector having a plate and cutting fiber particles outside the discharge port adjusts and collects the carbon fiber particles chopped inside the powder cutter by adjusting the suction force of the dust collector.
この多孔プレートを通過吸引した炭素繊維粒子は、通常環境では、凝集し易くなっているため、この時点で適宜備蓄し、炭素繊維微粒子の必要時に、次工程の衝撃摩擦力を利用したジェットミル・ボールミル・ビーズミル粉砕機等のいずれかで、本発明の最終目的である炭素繊維微粒子を製造することが好ましい。 Since the carbon fiber particles sucked through the perforated plate are easily aggregated in a normal environment, the carbon fiber particles are appropriately stored at this point, and when the carbon fiber fine particles are necessary, the jet mill using the impact friction force of the next process is used. It is preferable to produce the carbon fiber fine particles, which is the final object of the present invention, with a ball mill, a bead mill or the like.
備蓄した炭素繊維粒子は、凝集されている場合、ミキサー又は、プロセッサーで攪拌し分散させ、最終工程の衝撃摩擦力を利用したジェットミル・ボールミル・ビーズミル粉砕機等で、10μm未満の炭素繊維微粒子、さらには微粒子径平均7μm以下の微細粉末化した炭素繊維微粒子を得ることができる。 When the stocked carbon fiber particles are agglomerated, they are stirred and dispersed by a mixer or a processor, and the carbon fiber fine particles of less than 10 μm are dispersed by a jet mill, ball mill, bead mill, etc. using the impact frictional force of the final process, Furthermore, finely pulverized carbon fiber fine particles having an average fine particle diameter of 7 μm or less can be obtained.
以下に本発明装置の具体的実施例を、図面を参照して詳述する。図1は本発明の炭素繊維微粒子を得るための本発明による炭素繊維粒子の粉切装置の1例を示すが、本発明はこれらに限定されるものではない。
図中、1は上部回転刃、2は中間スライス回転刃、3は下部スライス回転刃、4,5,6はスペーサー、7はナット、8は投入口、9は飛散防止スカート、10は偏向スカート、11は規制セパレータ、12はロータリーカッター刃、13はモーター、14は多孔プレート、15は排出口ダクト、16は風量調節装置、17は集塵機を示す。
Specific embodiments of the apparatus of the present invention will be described in detail below with reference to the drawings. FIG. 1 shows an example of a carbon fiber particle cutting apparatus according to the present invention for obtaining the carbon fiber fine particles of the present invention, but the present invention is not limited to these.
In the figure, 1 is an upper rotary blade, 2 is an intermediate slice rotary blade, 3 is a lower slice rotary blade, 4, 5 and 6 are spacers, 7 is a nut, 8 is a slot, 9 is a splash skirt, and 10 is a deflection skirt. , 11 is a regulation separator, 12 is a rotary cutter blade, 13 is a motor, 14 is a perforated plate, 15 is a discharge duct, 16 is an air volume adjusting device, and 17 is a dust collector.
本装置内部に設けた2個の小径カット刃より構成される上部回転刃1、及び2個の中径カット刃より構成される中間スライス回転刃2にて剪断力を用いて裁断し、7個の大径カット刃より構成される下部スライス回転刃3にて衝撃力・剪断力を用い裁断によりカットをするなど少なくとも2段層以上よりなる多層カット刃を有し、各刃間は、スペーサー4,5,6で裁断に最適な間隔に保ち刃のブレを無くし、これらを1軸とし、上部をナット7で固定した。この多層カット刃は下段になるほど外径を大きくし、回転周速を早くすることが好ましい。
また、ナット7は、投入される炭素繊維が長い場合、繊維が絡まりやすく、乱流の発生を抑えるため、袋ナット、カップリングなどを取付ることが好ましい。また、上部回転刃1は、装置内での材料の絡まり、残留が起こるのを防止するため、平回転刃より、皿形刃やカップ形状の回転刃が好ましい。
The upper rotary blade 1 composed of two small-diameter cutting blades provided inside the apparatus and the intermediate slice rotary blade 2 composed of two medium-diameter cutting blades are cut using a shearing force. The lower slice rotary blade 3 composed of a large-diameter cut blade has a multi-layer cut blade composed of at least two layers, such as cutting by impact force / shearing force, and a spacer 4 between each blade. , 5 and 6 were kept at an optimum interval for cutting, and the blade was not shaken. It is preferable that the outer diameter of the multi-layer cutting blade is increased toward the lower stage to increase the rotational peripheral speed.
The nut 7 is preferably attached with a cap nut, a coupling, or the like in order to suppress the occurrence of turbulent flow when the input carbon fiber is long and the fiber tends to get entangled. Further, the upper rotary blade 1 is preferably a dish-shaped blade or a cup-shaped rotary blade rather than a flat rotary blade in order to prevent the material from becoming entangled and remaining in the apparatus.
本装置の上部には規格外品や産業廃棄物炭素繊維を投入するための投入口8を設け、この投入口8より投入され切断粉切された炭素繊維粒子が、カッター刃の回転風力により投入口へ舞い上がるのを防止する為に、内面上部に飛散防止スカート9を設け、投入口より投入される炭素繊維が滑り良く内部の回転刃へ落下到達するように、投入側の180度反対位置に落とす様に偏向スカート10を設けた。 At the top of this equipment, there is an inlet 8 for introducing non-standard products and industrial waste carbon fiber, and the carbon fiber particles that have been inserted and cut from the inlet 8 are input by the rotating wind power of the cutter blade. An anti-scattering skirt 9 is provided at the upper part of the inner surface to prevent it from rising to the mouth, so that the carbon fiber introduced from the inlet is slipped and reaches the internal rotary blade with a 180 degree opposite position on the inlet side. A deflection skirt 10 was provided so as to drop it.
回転刃の下方位置に、粉切された繊維粒子の規制セパレータ11を設け、さらに下部方向にロータリーカッター刃12を設け、これら各回転刃は下部に設けられたモーター13により駆動される。粉切機内部の排出口手前に多孔プレート14を設け、炭素繊維粒子をより細かく裁断すると同時にふるい分けされる。多孔プレート14の出口側は排出口ダクト15が設けられ、その途中には風量調節装置16を設け、排出口ダクト15の出口側に集塵機17を設け、集塵機17の吸引力の調整により粉切機内部の粉切された炭素繊維粒子大きさを調整し吸引収集する事が出来る。吸引力の調整は集塵機のモーター回転をインバータなどで制御することで、風量調節装置16と置き換えることも有効である。 At the lower position of the rotary blade, there is provided a regulation separator 11 for the fiber particles that have been cut off, and further, a rotary cutter blade 12 is provided in the lower direction. Each rotary blade is driven by a motor 13 provided at the lower portion. A perforated plate 14 is provided in front of the discharge port inside the powder cutting machine, and the carbon fiber particles are further finely cut and simultaneously screened. A discharge port duct 15 is provided on the outlet side of the perforated plate 14, an air volume adjusting device 16 is provided in the middle thereof, a dust collector 17 is provided on the outlet side of the discharge port duct 15, and a dust cutter 17 is adjusted by adjusting the suction force of the dust collector 17. It is possible to adjust the size of chopped carbon fiber particles inside and collect them by suction. It is also effective to adjust the suction force by replacing the air volume adjusting device 16 by controlling the motor rotation of the dust collector with an inverter or the like.
本実施例装置へ、炭素繊維の製造各工程間で発生した規格外品及び、炭素繊維の産業廃棄物、廃材品等の炭素繊維物を適当に混在して、投入し、運転を開始したところ、集塵機の吸引力の調整60%で炭素繊維が平均2.0mm長に細切粉切され1時間当たり2kgの炭素繊維粒子を得ることが出来た。さらにこれをジェットミル粉砕機で微細粉末化すると微粒子径平均7μmの炭素繊維微粒子を得ることが出来た。また、ほぼ同等の材料で、集塵機の吸引力の調整30%で炭素繊維が平均1.0mm長に細切粉切され1時間当たり1kgの炭素繊維粒子を得ることが出来た。同様にジェットミル粉砕機で微細粉末化すると微粒子径平均5μmの炭素繊維微粒子を得ることが出来た。 This example equipment is properly mixed with carbon fiber such as non-standard products generated during each process of carbon fiber manufacturing and carbon fiber industrial waste, waste materials, etc., and started operation. When the suction force of the dust collector was adjusted to 60%, the carbon fibers were chopped into an average length of 2.0 mm, and 2 kg of carbon fiber particles per hour could be obtained. Furthermore, when this was finely powdered with a jet mill grinder, carbon fiber fine particles having an average fine particle diameter of 7 μm could be obtained. In addition, carbon fibers were chopped into an average of 1.0 mm length by adjusting the suction force of the dust collector with 30% of the same material, and 1 kg of carbon fiber particles per hour could be obtained. Similarly, when finely powdered with a jet mill, a carbon fiber fine particle having an average fine particle diameter of 5 μm could be obtained.
さらに、本実施例装置へ、炭素繊維が平均2.0mm長に細切粉切されたものを2パス投入を繰り返し、行うと、平均1.0mm長に細切粉切され最大値は小さくなり、粒度分布
が小さくなり、均一化の傾向がみられた。これを同様にジェットミル粉砕機で微細粉末化すると微粒子径平均3μmの炭素繊維微粒子を得ることが出来た。
Furthermore, when carbon fiber is chopped to an average length of 2.0 mm and repeated two passes into the apparatus of this example, the average value is reduced to an average length of 1.0 mm and the maximum value is reduced. , The particle size distribution became smaller and the tendency of homogenization was observed. When this was similarly finely pulverized with a jet mill pulverizer, carbon fiber fine particles having an average fine particle diameter of 3 μm could be obtained.
従来、炭素繊維の製造各工程間で発生する規格外品及び、炭素繊維の産業廃棄物、廃材品等として、廃物として処理されていた炭素繊維の材料を、本発明の炭素繊維微粒子特に、従来困難とされていた10μm未満の微粒子を得ることにより、炭素繊維の軽くて・強い・変形しにくい等の性質から、本発明品は、塗料の強化材、混連物等として、さらには新素材、新用途製品の開発も期待され、再生利用拡大を可能にするものである。 Conventionally, carbon fiber materials that have been treated as waste, such as non-standard products generated between carbon fiber manufacturing processes, carbon fiber industrial waste, waste materials, etc. By obtaining fine particles of less than 10 μm, which were considered difficult, the carbon fiber is light, strong, and difficult to deform. Therefore, the product of the present invention can be used as a paint reinforcement, a mixture, etc. Development of new-use products is also expected, enabling the expansion of recycling.
さらに、本発明の製造方法、装置により、炭素繊維微粒子を容易に、効率よく、大量生産する事が出来、産業廃棄物の減少、公害防止にも効果が有る。 Furthermore, the production method and apparatus of the present invention enables mass production of carbon fiber fine particles easily and efficiently, and is effective in reducing industrial waste and preventing pollution.
炭素繊維粒子製造の紛切装置の1実施例An embodiment of a cutting device for producing carbon fiber particles
符号の説明Explanation of symbols
1 上部回転刃
2 中間スライス回転刃
3 下部スライス回転刃
4 スペーサー
5 スペーサー
6 スペーサー
7 ナット
8 投入口
9 飛散防止スカート
10 偏向スカート
11 規制セパレータ
12 ロータリーカッター刃
13 モーター
14 多孔プレート
15 排出口ダクト
16 風量調節装置
17 集塵機
DESCRIPTION OF SYMBOLS 1 Upper rotary blade 2 Middle slice rotary blade 3 Lower slice rotary blade 4 Spacer 5 Spacer 6 Spacer 7 Nut 8 Slot 9 Splash prevention skirt 10 Deflection skirt 11 Control separator 12 Rotary cutter blade 13 Motor 14 Porous plate 15 Discharge port duct 16 Air volume Adjustment device 17 Dust collector

Claims (6)

  1. 炭素繊維物を細切粉切、粉砕に際し複数のカット刃より構成される回転刃を多層に分け、炭素繊維物をこれにより好ましくは3mm以下に細切粉切し、該粉切された炭素繊維粒子を吸引収集備蓄し、利用前に炭素繊維微粒子とするための衝撃摩擦力を、利用したジェットミル・ボールミル・ビーズミル粉砕機等のいずれかで、微細粉末化することにより出来得る微粒子平均10μm未満の微細粉末としたことを特徴とする炭素繊維微粒子。 When the carbon fiber material is chopped and pulverized, the rotary blade composed of a plurality of cutting blades is divided into multiple layers, whereby the carbon fiber material is preferably chopped into 3 mm or less, and the chopped carbon fiber Average particle size of less than 10μm that can be obtained by fine powdering with any of jet mill, ball mill, bead mill pulverizer, etc. that uses impact friction force to store and collect particles and make carbon fiber particles before use. Carbon fiber fine particles characterized by being made of a fine powder.
  2. 炭素繊維の製造各工程間で発生する規格外品及び、炭素繊維の産業廃棄物、廃材品等の炭素繊維物から、炭素繊維微粒子を得るに際し、複数のカット刃より構成される回転刃を多層に分け、炭素繊維物をこれにより細切粉切し、該粉切された炭素繊維粒子を吸引収集備蓄し、3mm以下に炭素繊維物を細切粉切し得る細切粉砕機を使用し、微粒子平均10μm未満の炭素繊維微粒子の製造方法。 Multi-layered rotating blades composed of multiple cutting blades are used to obtain carbon fiber fine particles from non-standard products generated during each process of carbon fiber production and carbon fiber such as carbon fiber industrial waste and waste materials. The carbon fiber material is cut into finely divided pieces, the carbon fiber particles that have been cut into pieces are collected by suction, and a finely pulverized machine capable of cutting the carbon fiber material into fine pieces of 3 mm or less is used. A method for producing carbon fiber fine particles having an average fine particle size of less than 10 μm.
  3. 細切粉砕機を使用した後に、平均微粒子10μm未満の炭素繊維微粒子とするための衝撃摩擦力を利用したジェットミル・ボールミル・ビーズミル粉砕機等のいずれかで微細粉末化することを特徴とする炭素繊維微粒子の製造方法。 Carbon is characterized by being finely pulverized with a jet mill, ball mill, or bead mill pulverizer using impact frictional force to make carbon fiber fine particles with an average fine particle of less than 10 μm after using a fine pulverizer A method for producing fiber fine particles.
  4. 複数のカット刃より構成される回転刃を少なくとも2段層以上の多層に設け、下段層になるほど外径を大きくした回転刃とし、該回転刃を回転せしめるように構成したことを特徴とする炭素繊維物の粉切装置。 Carbon having a configuration in which rotary blades composed of a plurality of cut blades are provided in multiple layers of at least two layers, a rotary blade whose outer diameter is increased toward the lower layer, and the rotary blade is rotated. Textile cutting equipment.
  5. 回転刃の上方位置に素材投入口を設け、その排出側の180度反対位置方向へ向いた繊維の飛散防止スカートを設けたことを特徴とする請求項4に記載の炭素繊維物の粉切装置。 5. A carbon fiber material cutting apparatus according to claim 4, wherein a material input port is provided at a position above the rotary blade, and a fiber scattering prevention skirt directed in the direction opposite to 180 degrees on the discharge side is provided. .
  6. 回転刃の下方位置に細切された繊維粒子の規制セパレータを設け、さらに下部方向にロータリーカッター刃を設け、裁断した粉切機内部の排出口手前に多孔プレートを設け、排出口の外部に集塵機を設け、集塵機の吸引力により粉砕機内部の細切粉切された炭素繊維粒子を吸引収集することを特徴とする請求項4または請求項5に記載の炭素繊維物の粉切装置。



    A fiber separator is provided at the lower position of the rotary blade, a rotary cutter blade is provided in the lower direction, a perforated plate is installed in front of the cut outlet inside the dust cutter, and a dust collector is installed outside the outlet. 6. The carbon fiber material cutting apparatus according to claim 4, wherein the carbon fiber particles cut into fine pieces inside the pulverizer are sucked and collected by a suction force of a dust collector.



JP2007182991A 2007-07-12 2007-07-12 Carbon fiber fine particles, and manufacturing method and apparatus therefor Pending JP2009018963A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013255879A (en) * 2012-06-12 2013-12-26 Kureha Corp Method of sieving short carbon fiber, and the short carbon fiber
CN108940530A (en) * 2018-06-27 2018-12-07 郑州煤矿机械制造技工学校 Device is mechanically pulverized in chinese medicine material
CN111617863A (en) * 2020-05-15 2020-09-04 侯西成 Preparation method and preparation equipment of western medicine composition for treating bronchitis

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013255879A (en) * 2012-06-12 2013-12-26 Kureha Corp Method of sieving short carbon fiber, and the short carbon fiber
CN108940530A (en) * 2018-06-27 2018-12-07 郑州煤矿机械制造技工学校 Device is mechanically pulverized in chinese medicine material
CN108940530B (en) * 2018-06-27 2020-11-03 郑州煤矿机械制造技工学校 Mechanical crushing device for traditional Chinese medicine materials
CN111617863A (en) * 2020-05-15 2020-09-04 侯西成 Preparation method and preparation equipment of western medicine composition for treating bronchitis

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