JPH0243006A - Continuously mixing method and device of powder with short fiber aggregate by dispersing in state of monofilament - Google Patents
Continuously mixing method and device of powder with short fiber aggregate by dispersing in state of monofilamentInfo
- Publication number
- JPH0243006A JPH0243006A JP19365288A JP19365288A JPH0243006A JP H0243006 A JPH0243006 A JP H0243006A JP 19365288 A JP19365288 A JP 19365288A JP 19365288 A JP19365288 A JP 19365288A JP H0243006 A JPH0243006 A JP H0243006A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- rotating body
- dispersed
- continuously
- raw material
- 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
- 239000000835 fiber Substances 0.000 title claims abstract description 80
- 239000000843 powder Substances 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000002156 mixing Methods 0.000 title abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 43
- 239000002245 particle Substances 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000007774 longterm Effects 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 13
- 229910052799 carbon Inorganic materials 0.000 description 13
- 229920000049 Carbon (fiber) Polymers 0.000 description 10
- 239000004917 carbon fiber Substances 0.000 description 10
- 239000004568 cement Substances 0.000 description 10
- 239000011819 refractory material Substances 0.000 description 8
- 230000002776 aggregation Effects 0.000 description 7
- 239000004760 aramid Substances 0.000 description 7
- 230000002265 prevention Effects 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 238000005054 agglomeration Methods 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 6
- 229910021487 silica fume Inorganic materials 0.000 description 6
- 229920003235 aromatic polyamide Polymers 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 239000010425 asbestos Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- 229910052895 riebeckite Inorganic materials 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 229920006231 aramid fiber Polymers 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 241000270295 Serpentes Species 0.000 description 1
- 241001433070 Xiphoides Species 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 210000002417 xiphoid bone Anatomy 0.000 description 1
Landscapes
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はカーボン、アラミド等短繊維の工場生産された
原材料の状態に於ける短繊維の凝集体を、蛇状態で１本
１本のモノフィラメント状に分散すると同時に、シリカ
ヒユーム等のサブミクロン微粉体成は同径程度の微細繊
維又はそれらと共にセメント、耐火物等の粉体と前記短
繊維とを均−且つ連続的に混合するための方法及び装置
に関する。Detailed Description of the Invention (Industrial Field of Application) The present invention is directed to converting aggregates of short fibers such as carbon and aramid fibers in the state of factory-produced raw materials into individual monofilaments in a snake state. At the same time, a method for uniformly and continuously mixing submicron fine powder such as silica fume with fine fibers of approximately the same diameter or powder of cement, refractories, etc., and the short fibers. Regarding equipment.
（従来技術）
本出願人は先に炭素短＃’ｉｔＨの小塊又はチゴツプ状
の短繊維を１本１本分散する装置（特公昭６２−５８８
８６号公報参照）を発明した。そして、この繊維分散装
置により分散された炭素短繊維をセメント、耐火物等の
成型品原材料中に均一に分散混合させ、凝集し易い特性
をもつ炭素繊維の単繊維同志が分散混合に際して互に接
触して凝集を起こさないようにするため、■１粒径０．
１μ〜１μ程度のシリカヒユーム等のサブミクロン微粉
体或は同径程度の微細繊維を１本１本のモノフィラメン
トの表面に吸着させ各繊維間に介在させた、）凝集防止
処理を施した乾状層の炭素短繊維原材料と上記成型品原
材料粉体とを混合させること、更に上記製造方法として
■、炭素短繊維小塊又はチョップ状の短繊維を１本１本
の炭素短繊維に分散しつつ、粒径０．１μ〜１μ程度゛
のシリカヒユーム等のサブミクロン微粉体或は同径程度
の微細繊維が霧状に拡散しているミキサー中に逐次投入
し、各炭素短繊維のモノフィラメントの表面にサブミク
ロン微粉体或は同径程度の微細繊維を吸着介在させたこ
とを特徴とする凝集防止処理を施した乾状層の炭素短繊
維原材料の製造方法。■、炭素短繊維小塊又はチョップ
状短繊維を１本１本の炭素短繊維に分散しつつ、粒径０
．１μ〜１μ程度のシリカヒユーム等のサブミクロン微
粉体或は同径程度の微細繊維を前記各炭素短繊維のモノ
フィラメントの表面に逐次吹きつけて吸着させ各繊維間
に介在させたことを特徴とする凝集防止処理を施した乾
状層の炭素短繊維原材料の製造方法。ＩＶ、炭素短繊維
小塊又はチョップ状短繊維と粒径０．１μ〜１μ程度の
シリカヒユーム等のサブミクロン微粉体或は同径程度の
微細繊維とを混合した状態で繊維の分散と同時に、各炭
素短繊維１本１本のモノフィラメントの表面にサブミク
ロン微粉体或は同径程度の微細繊維を吸着介在させるこ
とを特徴とする１Ｍ防止処理を施した乾状層の炭素短繊
維原材料の製造方法を提案した。そして、更に前記発明
による特公昭６２−５８８８６号公報に示す繊維分散装
置の問題点を解決する方法及び手段として、■。(Prior Art) The present applicant previously developed a device (Japanese Patent Publication No. 62-588
(see Publication No. 86). Then, the short carbon fibers dispersed by this fiber dispersion device are uniformly dispersed and mixed into raw materials for molded products such as cement and refractories, and the carbon fiber single fibers, which tend to aggregate easily, come into contact with each other during dispersion and mixing. In order to prevent agglomeration, ■1 particle size 0.
Submicron fine powder such as silica fume with a size of 1μ to 1μ or fine fibers with the same diameter are adsorbed onto the surface of each monofilament and interposed between each fiber.Dry layer subjected to agglomeration prevention treatment. Mixing the carbon short fiber raw material and the molded product raw material powder, and further as the above manufacturing method, A submicron fine powder such as silica fume with a particle size of about 0.1 μm to 1 μm or a fine fiber of about the same diameter is sequentially introduced into a mixer in which it is dispersed in a mist. A method for producing a dry layer carbon short fiber raw material subjected to an agglomeration prevention treatment characterized by adsorbing micron fine powder or fine fibers of about the same diameter. ■, while dispersing carbon short fiber clumps or chopped short fibers into individual short carbon fibers, the particle size is 0.
．． Aggregation characterized in that submicron fine powder such as silica fume of about 1 μm to 1 μm or fine fibers of about the same diameter are sequentially sprayed onto the surface of the monofilament of each of the short carbon fibers, adsorbed, and interposed between each fiber. A method for producing a dry layer carbon short fiber raw material subjected to prevention treatment. IV, in a state where carbon short fiber small lumps or chopped short fibers are mixed with submicron fine powder such as silica fume with a particle size of about 0.1μ to 1μ or fine fibers with the same diameter, at the same time as the fibers are dispersed, each A method for producing a dry layer carbon short fiber raw material subjected to 1M prevention treatment, characterized in that submicron fine powder or fine fibers of about the same diameter are adsorbed and interposed on the surface of each monofilament of each short carbon fiber. proposed. Furthermore, as a method and means for solving the problems of the fiber dispersion device disclosed in Japanese Patent Publication No. 62-58886 according to the above-mentioned invention,
短繊維の凝集体を１対のベルトコンベアー等の移送装置
間を通して表面に多数の小突起を有する回転体の略中心
方向に強制供給し、該移送装置先端部で挟着保持された
凝集体を回転体表面の多数の小突起でかきとられ単繊維
状に分散さ′せる如くした短繊維の凝集体を単繊維状に
分散させる方法。■、多数の小突起を有する回転体の略
中心に向けて１対のベルトコンベアー等の移送装置を配
設し、短繊維の凝集体を該移送装置に供給する装置を有
し、前記移送装置の先端部に於いて強制移送される凝集
体が挟着保持され乍ら送り出される手段を備えた短繊維
の凝集体を単繊維状に分散させる装置を提案した。Aggregates of short fibers are forcibly fed approximately toward the center of a rotating body that has many small protrusions on its surface through a pair of transfer devices such as belt conveyors, and the aggregates held in place at the tip of the transfer device are A method for dispersing aggregates of short fibers into single fibers, which are scraped off by a large number of small protrusions on the surface of a rotating body and dispersed into single fibers. (2) A transfer device such as a pair of belt conveyors is disposed approximately toward the center of a rotating body having a large number of small protrusions, and a device is provided to supply aggregates of short fibers to the transfer device; We have proposed an apparatus for dispersing aggregates of short fibers into single fibers, which is equipped with a means for pinching and holding the aggregates being forcibly transferred at the tip of the apparatus and sending them out.
（発明が解決しようとする問題点）
然るに、上記従来技術にあってはＶ、ＶＩの方法及び装
置により■の凝集防止処理を施した乾状層の炭素短繊維
原材料を製造しても、セメント又は耐火物等の成型品原
材料中に均一に分散混合させるため、それらを混合ミキ
サー中に投入して撹拌する際に、
（１）繊維径が比較的細く単位当り量の比容積が嵩高の
場合
（２）繊維径が比較的長くｍ位当り量の比容積が１′Ｍ
高の場合
（３）成型品原材料に比較して繊維混入量が多い場合
には短繊維は回転運動を与えられる）トによって造粒化
しがちになり、分散に問題が生じる恐れを有していた。(Problems to be Solved by the Invention) However, in the above-mentioned prior art, even if the dry layer carbon short fiber raw material subjected to the agglomeration prevention treatment of (2) is produced by the methods and apparatus of V and VI, cement Or, in order to uniformly disperse and mix raw materials for molded products such as refractories, when putting them into a mixer and stirring them, (1) When the fiber diameter is relatively small and the specific volume per unit is bulky. (2) The fiber diameter is relatively long and the specific volume per meter is 1'M
(3) If the amount of fiber mixed in is large compared to the raw material for the molded product, the short fibers will be given rotational motion) and will tend to form into granules, which may cause problems in dispersion. .
この条件をクリアーするためには、■に於けるシリカヒ
ユーム等のサブミクロン微粉体或は微細繊維の添加量を
増加させることによって成程度の調整は可能であるが、
それら微粉体等の添加量はセメント又は耐火物等の成型
品原材料に比較し限界を超えると強度低下等の影響が生
じ自ずから一定の制約を受けざるを得なかったし、更に
前項■の方法により短繊維と微粉体或は微細繊維とを予
め混合する際にも、その方法によっては上記のミキシン
グによる造粒化の傾向が懸念されていた。又、■による
乾状前の炭素短繊維とセメント或は耐火物等の成型品原
材料とを、ミキサーにより混合するため、ミキサー容量
に従ったバッチ方式を取らざるを得ず、製造効率からい
っても連続ｇＪ造造式式よる方法が優ることは論を持た
ないところである。In order to meet this condition, it is possible to adjust the degree by increasing the amount of submicron fine powder or fine fibers such as silica hume added in step (3).
Compared to raw materials for molded products such as cement or refractories, the amount of these fine powders, etc. added must be subject to certain restrictions since exceeding the limit will naturally cause effects such as a decrease in strength. Even when short fibers and fine powder or fine fibers are mixed in advance, depending on the method, the above-mentioned tendency of granulation due to mixing has been a concern. In addition, since the short carbon fibers before drying according to (2) and raw materials for molded products such as cement or refractories are mixed in a mixer, a batch method according to the capacity of the mixer has to be used, which is difficult in terms of production efficiency. There is no argument that the method based on the continuous gJ construction formula is superior.
（問題点を解決するための手段）
本発明は上記種々問題点を解決することを目的とし、（
Ｄ短繊維の凝集体を該原材料定量供給装置により、１対
のベルトコンベアー等の移送装置間を通して表面に多数
の小突起を有する第１の回転体の略中心方向に定量連続
強制供給し。(Means for solving the problems) The present invention aims to solve the various problems mentioned above.
The agglomerates of D short fibers are continuously and forcefully fed by the raw material quantitative supply device toward the approximate center of a first rotating body having a large number of small protrusions on its surface between a pair of conveying devices such as a belt conveyor.
該移送装置先端部で挟着保持された凝集体を該回転体表
面の多数の小突起でかきとりモノフィラメント状に分散
し、第１の回転体の回転方向前方に設置された表面に多
数の小突起を有する第２の回転体の表面に吹付けると共
に、粉体を第２の回転体上部に配設した粉体定量供給装
置により、該回転体表面に定量連続供給し飛散、させる
ことにより、モノフィラメント状になった短繊維と粉体
とを連続的に混合する方法。■多数の小突起を有する第
１の回転体の略中心に向けて１対のベルトコンベアー等
の移送装置を配設し、短繊維の凝集体を該原材料定量供
給装置により該移送装置間に定量連続供給する装置を有
し、前記移送装置先端部に於いて強制移送される凝集体
が挟着保持され乍ら送り出される手段を備え、且つ前記
回転体の回転方向前方に表面に多数の小突起を有する第
２の回転体を設置し、その上部に粉体の定量連♀）“２
供給が可能な粉体定量供給装置を有する短繊維の凝集体
をモノフィラメント状に分散し併せて該短繊維と粉体と
を連続的に混合する装置を特徴とするものである。The aggregate held at the tip of the transfer device is scraped off by a large number of small protrusions on the surface of the rotating body and dispersed in a monofilament shape, and a large number of small protrusions are disposed on the surface of the first rotating body installed at the front in the direction of rotation. The monofilament is sprayed onto the surface of the second rotating body having A method of continuously mixing short fibers and powder. ■ A pair of transfer devices such as a belt conveyor are arranged toward the approximate center of the first rotating body having many small protrusions, and aggregates of short fibers are quantified between the transfer devices by the raw material quantitative supply device. It has a continuous feeding device, a means for feeding out the aggregates forcibly transferred at the tip of the transfer device while being pinched and held, and a large number of small protrusions on the surface in the forward direction of rotation of the rotating body. A second rotating body with
The present invention is characterized by an apparatus for dispersing aggregates of short fibers into monofilaments and continuously mixing the short fibers and powder, which has a powder quantitative supply device capable of supplying powder.
（作 用）
本発明は３〜２５ ｎｗｌ＋程度の短繊維凝集体を、該
原材料収納用ホッパー下部に設置された定量供給装置に
より１対のベルトコンベアー等移送装置間に定量連続強
制供給し、該移送装置先端部に於いて凝集体を挟着保持
し乍ら第１の回転体表面の多数の小突起でかきとられモ
ノフィラメント状に分散されつつ第２の回転体表面に吹
付け、第２の回転体はその上部に配設された粉体定量供
給装置により粒径０．１μ〜１μ程度のシリカヒユーム
等の無機質微粉体又は径０．０１μ〜１μ程度の石綿テ
ーリング等の無機質微細繊維が該表面に定量連続供給さ
れ、回転する表面の小突起により飛散し第１の回転体か
ら吹付けられてくるモノフィラメント状になった短繊維
と連続的に混合され乍ら後方へ排出される。この際、上
記移送装置の移送速度及び粉体定量供給装置による単位
時間当りの供給量は目的仕様に合せて夫々！ｌ！ｉ整が
可能になっており、又、場合によって上記微粉体等は移
送装置により移送される凝集体原材料の表面から定量連
続供給し、第２の回転体上部の粉体定量供給装置からは
セメント或は耐火物等成型品原材料の粉体を連続チャー
ジすることも、更に第２の回転体の回転方向前方に同形
の第３の回転体を設置し、第２の回転体上部からは上記
微粉体等を第３の回転体上部からは成型品原材料の粉体
の連続供給を行ってもよいし、該原材料粉体の種類が複
数のときは予め混合し供給してもよい。かくして短繊維
凝集体はモノフィラメン１〜状となり、微粉体更に成型
品原材料粉体と均一に混合され長時間の連続加工製造を
行うことができる。(Function) The present invention continuously forcibly feeds short fiber aggregates of about 3 to 25 nwl+ between a pair of transfer devices such as a belt conveyor using a quantitative feed device installed at the bottom of the raw material storage hopper. While the aggregate is held between the ends of the transfer device, it is scraped off by a large number of small protrusions on the surface of the first rotating body, dispersed into monofilaments, and sprayed onto the surface of the second rotating body. The surface of the rotating body is supplied with inorganic fine powder such as silica fume with a particle size of about 0.1 μm to 1 μm or inorganic fine fibers such as asbestos tailings with a diameter of about 0.01 μm to 1 μm by a powder quantitative supply device installed on the top of the rotating body. The monofilament-shaped short fibers are scattered by the small protrusions on the rotating surface and continuously mixed with monofilament-shaped short fibers blown from the first rotating body, and then discharged to the rear. At this time, the transfer speed of the above-mentioned transfer device and the amount of powder supplied per unit time by the powder constant supply device should be adjusted according to the target specifications. l! In addition, depending on the case, the above-mentioned fine powder, etc. is continuously supplied in a fixed amount from the surface of the aggregate raw material transferred by the transfer device, and cement Alternatively, powder of raw material for molded products such as refractories may be continuously charged, and a third rotating body of the same shape may be installed in front of the second rotating body in the rotational direction, and the fine powder may be charged from the upper part of the second rotating body. The raw material powder for the molded product may be continuously supplied from the upper part of the third rotary body, or when there are a plurality of types of raw material powder, they may be mixed in advance and supplied. In this way, the short fiber aggregate becomes monofilament-like, and is uniformly mixed with the fine powder and the molded product raw material powder, allowing continuous processing and manufacturing over a long period of time.
（実施例）
以下、第１図に示した実施例に基づいて具体的に説明す
る。１，１４は表面に多数の針状突起２，１５を突設し
た円筒形の第１、第２の回転ドラムで夫々直径４００ｍ
ｍ、 ９８０．７５Ｏｒ、ｐ、Ｉｆｆで矢印方向に回転
している。３は３〜２５ｍｎ程度にカットされたピッチ
系炭素短繊維或はアラミド短繊維の凝集体原材料、４は
該原材料収納用ホッパー、５，５′はホッパー４の下部
に設けられた１対の原材料定量供給用回転部材で夫々矢
印方向に回転し、回転速度の可変により供給量を増減な
し得る機構になっており、６は略々水平状に配設された
原材料移送供給用ベルトコンベアーで矢印方向に可動し
、ガイドローラー７．８より先端は第１の回転ドラム１
の中心に向けられ、該垂直部６′先端と針状突起２とは
僅かの間隙を設けられている。９は前記垂直部６′と略
々平行に配設された噴込用ベルトコンベアーで矢印方向
に可動し、その先端ガイドローラー１０は側面に配設さ
れたスプリングによってベルトコンベアー６の垂直部６
′先端のガイドローラー１１に向って常時押圧されてい
る。１２はガイドローラー８上方に水平に配設した補助
ベルトコンベアーで矢印方向に可動している。１３はケ
ーシングでベルトコンベアー６の垂直部６′先端より第
１の回転ドラム１の回転方向に沿って巻回配設され、第
１の回転ドラム１との間隔が次第に広くなる構造になっ
ており、第２の回転ドラム１４下部も同様で、且つ垂直
方向上下にスライドし間隔調整がなし得るようになって
いる。１６は粉体用ホッパー１７は粒径０．１μ〜１μ
程度のシリカヒユームの無機質粉体又は径０．０１μ〜
１μ程度の石綿テーリングの無機質微細繊維、１８は粉
体用ホッパ−１６下部に水平状に配設された粉体供給用
ベルトコンベアーで矢印方向に移送しうる様になってお
り、その上面と粉体用ホッパー１６の下部とは僅かの間
隙が設けられ、且つ間隙の調整により粉体量の増減が可
能になっている。(Example) Hereinafter, a detailed explanation will be given based on the example shown in FIG. 1 and 14 are cylindrical first and second rotating drums each having a diameter of 400 m, each having a large number of needle-like protrusions 2 and 15 protruding from their surfaces.
It is rotating in the direction of the arrow at m, 980.75Or, p, If. 3 is an aggregate raw material of pitch-based short carbon fibers or short aramid fibers cut into about 3 to 25 mm, 4 is a hopper for storing the raw materials, and 5 and 5' are a pair of raw materials provided at the bottom of hopper 4. It has a mechanism in which the rotating members for quantitative supply rotate in the directions of the arrows, and the supply amount can be increased or decreased by varying the rotation speed. 6 is a belt conveyor for transferring and supplying raw materials arranged approximately horizontally, and rotates in the direction of the arrows. The tip of the guide roller 7.8 is the first rotating drum 1.
The tip of the vertical portion 6' and the needle-like protrusion 2 are provided with a slight gap. Reference numeral 9 denotes an injection belt conveyor disposed approximately parallel to the vertical portion 6' and movable in the direction of the arrow, and its tip guide roller 10 moves toward the vertical portion 6 of the belt conveyor 6 by means of a spring disposed on the side.
'It is constantly pressed toward the guide roller 11 at the tip. Reference numeral 12 denotes an auxiliary belt conveyor disposed horizontally above the guide roller 8, and is movable in the direction of the arrow. Reference numeral 13 denotes a casing, which is wound along the rotational direction of the first rotating drum 1 from the tip of the vertical portion 6' of the belt conveyor 6, and has a structure in which the distance between the casing and the first rotating drum 1 gradually increases. The lower part of the second rotary drum 14 is similar, and can be slid vertically up and down to adjust the spacing. 16 is a powder hopper 17 has a particle size of 0.1μ to 1μ
Inorganic powder of silica hume or diameter 0.01μ~
Inorganic fine fibers with asbestos tailings of about 1μ, 18, can be transported in the direction of the arrow by a powder supply belt conveyor installed horizontally at the bottom of the powder hopper 16. A slight gap is provided with the lower part of the body hopper 16, and the amount of powder can be increased or decreased by adjusting the gap.
１９は粉体供給用円筒形回転ドラム直径１５０ｎｗｎ、
２５０ｒ 、１．ｍで矢印方向に回転しその円周部には
長手方向にスリットを設け、ベルトコンベアー１８の端
部より落下されてくる粉体との摩擦抵抗を大にし、第２
の回転ドラム１４表面の剣状突起１５に供給し易い構造
になっている。19 is a cylindrical rotating drum for powder supply with a diameter of 150 nwn;
250r, 1. It rotates in the direction of the arrow at m, and has a slit in the longitudinal direction on its circumference to increase the frictional resistance with the powder falling from the end of the belt conveyor 18.
It has a structure that allows it to be easily supplied to the xiphoid protrusion 15 on the surface of the rotating drum 14.
次に作用について説明する。原材料収納用ホッパー４の
下部に設置された定量供給用回転部材５，５′の間から
原材料移送供給用ベルトコンベアー６上に定量連続供給
された原材料３は補助ベルトコンベアー１２に上方を押
えられ。Next, the effect will be explained. The raw material 3 is continuously supplied in a quantitative manner onto the raw material transfer/supply belt conveyor 6 from between the quantitative supply rotary members 5 and 5' installed at the lower part of the raw material storage hopper 4, and is pressed upward by the auxiliary belt conveyor 12.
ベルトコンベアー６の垂直部６′と噴込用ベルトコンベ
アー９間に上方より送り込まれた両者間を強制移送され
、先端にあるガイドローラー１０．１１により挟着保持
され乍ら送り出され、第１の回転ドラム１の針状突起２
により掻きとられモノフィラメント状に分散される。分
散された単繊維は第１の回転ドラム１の回転により生ず
る強力な空気の流れにより、次第に広がっているケーシ
ング１３との空隙間を通過し、次第に体積が膨張してよ
り一層単繊維化が促進さ・れ乍ら、第２の回転ドラム１
４の表面に突設された針状突起１５に吹付けられる。こ
の際、第１、第２の回転ドラム１，１４の周速度に夫々
差異があるため単繊維化は一段と増進され、更に第２の
回転ドラム上部より落下し飛散される無機質粉体又は無
機質微細繊維１７と均−且つ連続的に混合され乍ら後方
へ排出される。斯くの如く、短繊維凝集体原材料３の定
量供給用回転部材５，５′による供給量、原材料供給用
ベルトコンベアー６の供給速度、及び無機質微粉体等１
７の供給量を仕様に基づき当初夫々調整を行うことによ
り、カーボン、アラミド等短繊維が乾状前で高い混入率
をもって均一に混入されたドライコンパウンドを連続的
に加工′！Ａａすることが可能となる。It is forcibly transferred between the vertical part 6' of the belt conveyor 6 and the injection belt conveyor 9 from above, and is sent out while being pinched and held by the guide rollers 10 and 11 at the tip. Needle-like protrusion 2 of rotating drum 1
It is scraped off and dispersed into monofilaments. Due to the strong air flow generated by the rotation of the first rotary drum 1, the dispersed single fibers pass through the gap between the casing 13 and the casing 13, which gradually expands, and the volume thereof gradually expands, further promoting the formation of single fibers. However, the second rotating drum 1
The liquid is sprayed onto needle-like protrusions 15 protruding from the surface of 4. At this time, since the circumferential speeds of the first and second rotating drums 1 and 14 are different, the formation of single fibers is further promoted, and the inorganic powder or inorganic fine particles that fall from the upper part of the second rotating drum and are scattered. It is uniformly and continuously mixed with the fibers 17 and discharged to the rear. As described above, the supply amount of the short fiber aggregate raw material 3 by the rotating members 5, 5' for quantitative supply, the supply speed of the raw material supply belt conveyor 6, and the inorganic fine powder etc. 1
By initially adjusting the supply amount of 7 based on the specifications, we can continuously process a dry compound in which short fibers such as carbon and aramid are evenly mixed in at a high mixing rate before drying! It becomes possible to do Aa.
〔成型品原材料と混合する場合の一実施例〕１ 。[An example of mixing with molded product raw materials] 1.
（１）ピッチ系炭素短繊維（長さ２０ｍ）３％（重量比
）
（２）無機質微粉体
（シリカヒユーム、粒径０．１μ〜１μ）９％（）
（３）セメント ６０％（）（４）骨
材（炭酸カルシューム粉）
（粒度調整 粒径２０μ〜２００μ）
２８％（）
２゜
（１）ピッチ系カーボン短繊維（長さ３ｍｍ）３．８％
（重量比）
（２）アラミド短繊維（長さ３ ｎ＋ｎ＋ ）３．８％
（）
（３）無機質微細繊維
（石綿テーリング、径０．０１μ〜１μ）１５．４％
（）
（４）フェノール樹脂粉末 ７．０％（）（５）炭酸
カルシューム粉
（粒度調整 粒径１０μ〜１２０μ）
７０．０％（）
（効 果）
本発明はカーボン、アラミド等各種短繊維の凝集体を該
原材料定量供給装置により、円筒形の外周部表面に多数
の細かい突起が小間隔を置いて立設され一定方向に回転
する第１の回転体の表面の任意の位置より、該回転体の
中心に向けて設置されたベルトコンベアー等の供給移送
装置上法こ定量連続供給し、１対のベルトコンベアー等
の供給移送装置の間を通しつつ強制供給を行ない、供給
原材料を供給移送装置先端部で強固に保持し乍ら第１の
回転体表面の綱かい突起による可動部材とにより、上記
凝集体をモノフィラメント状に分散しつつ第２の回転体
表面に吹付け、該回転体上部より連続的に定量づつ落下
し飛散する無機質微粉体、無機質微細繊維或はセメント
等成型品原材料粉体と均−且つ連続的に混合なし得るこ
とを特徴とした短繊維の凝集体をモノフィラメント状に
分散すると同時に、粉体と均−且つ連続的に混合する方
法及び装置を要旨としているので、従来技術による分散
方法、装置に比較し次の様な長所を有している。(1) Pitch-based carbon short fibers (length 20m) 3% (weight ratio) (2) Inorganic fine powder (silica hume, particle size 0.1μ to 1μ) 9% () (3) Cement 60% () (4 )Bone
Material (calcium carbonate powder) (particle size adjustment particle size 20μ to 200μ) 28% () 2゜ (1) Pitch-based short carbon fiber (length 3mm) 3.8%
(Weight ratio) (2) Aramid staple fiber (length 3 n+n+) 3.8%
() (3) Inorganic fine fibers (asbestos tailings, diameter 0.01μ to 1μ) 15.4%
() (4) Phenol resin powder 7.0% () (5) Calcium carbonate powder (particle size adjustment: particle size 10μ to 120μ) 70.0% () (Effects) The present invention uses various short fibers such as carbon and aramid. The aggregate is rotated by the raw material quantitative supply device from any position on the surface of the first rotating body, which has a cylindrical outer peripheral surface with many fine protrusions erected at small intervals and rotates in a constant direction. The raw material is continuously supplied in a constant quantity on a supply and transfer device such as a belt conveyor installed toward the center of the body, and forcedly fed while passing between a pair of supply and transfer devices such as a belt conveyor. While being firmly held at the tip, the aggregate is dispersed in a monofilament form and sprayed onto the surface of the second rotating body using a movable member formed by a rope protrusion on the surface of the first rotating body, and the aggregate is sprayed onto the surface of the second rotating body from the upper part of the rotating body. Dispersion of aggregates of short fibers in the form of monofilaments, which can be uniformly and continuously mixed with inorganic fine powder, inorganic fine fibers, or powdered raw materials for molded products such as cement, which continuously fall and scatter in fixed amounts. At the same time, since it is a method and apparatus for uniformly and continuously mixing powder, it has the following advantages compared to conventional dispersion methods and apparatuses.
（１）凝集防止処理を施した乾状態の炭素短繊維の製造
が容易なこと。(1) It is easy to produce dry short carbon fibers that have been subjected to agglomeration prevention treatment.
（２）短繊維の凝集体とセメント及び耐火物等粉体との
トライブレンドが容易なこと。(2) It is easy to tri-blend short fiber aggregates with powders such as cement and refractories.
（３）短繊維が高混入率のとき、或は繊維長が長く嵩高
の場合のブレンドが容易なこと。(3) Easy blending when short fibers are mixed at a high rate or when the fibers are long and bulky.
（４）従来のバッチ方式と異なり連続加工方式がとるこ
とが出来るので高能率なこと。(4) Unlike the conventional batch method, a continuous processing method can be used, so it is highly efficient.
又、本発明による方法及び装置により得られた凝集防止
処理を施した乾状態のカーボン、アラミド短繊維原材料
が使用され、更にセメント及び耐火物等粉体と高い混入
率をもつこれ等短繊維のドライコンパウンドが多方面に
渡り利用されることによって、カーボン、アラミド短繊
維等将来の可能性を有する新素材の用途開発が社会的に
より一層促進されることは確実である。In addition, dry carbon and aramid short fiber raw materials subjected to agglomeration prevention treatment obtained by the method and apparatus according to the present invention are used, and furthermore, these short fibers having a high mixing rate with powders such as cement and refractory materials are used. It is certain that the use of dry compounds in a wide range of fields will further promote the development of applications for new materials with future potential, such as carbon and aramid staple fibers.
第１図は本発明装置の一実施例正面図である。
１．１４・・・第１回転ドラム、第２回転ドラム２．１
５・・・針状突起
３・・短繊維凝集体原材料
４・・・原材料収納用ホッパー
５．５′・・・原材料定量供給用回転部材６．６′・・
・原材料移送供給用ベルトコンベアー７．８，１０．１
１・・・ガイドローラー９・・・噴込用ベルトコンベア
ー
１２・・補助ベルトコンベアー
１３・・・ケーシング
１６・・・粉体収納用ホッパー
１７・・・無機質微粉体又は無機質微細繊維１８・・・
粉体供給用ベルトコンベアー１９・・・粉体供給用回転
ドラムFIG. 1 is a front view of one embodiment of the apparatus of the present invention. 1.14...First rotating drum, second rotating drum 2.1
5... Acicular protrusion 3... Short fiber aggregate raw material 4... Hopper for storing raw material 5.5'... Rotating member for quantitative supply of raw material 6.6'...
・Belt conveyor for raw material transfer and supply 7.8, 10.1
1... Guide roller 9... Belt conveyor for injection 12... Auxiliary belt conveyor 13... Casing 16... Hopper for storing powder 17... Inorganic fine powder or inorganic fine fiber 18...
Powder supply belt conveyor 19... Rotating drum for powder supply
Claims (2)
１対のベルトコンベアー等の移送装置間を通して表面に
多数の小突起を有する第１の回転体の略中心方向に定量
連続強制供給し、該移送装置先端部で挟着保持された凝
集体を該回転体表面の多数の小突起でかきとりモノフィ
ラメント状に分散し、第１の回転体の回転方向前方に設
置された表面に多数の小突起を有する第２の回転体の表
面に吹付けると共に、粉体を第２の回転体上部に配設し
た粉体定量供給装置により、該回転体表面に定量連続供
給し飛散させることにより、モノフィラメント状になっ
た短繊維と粉体とを連続的に混合する方法。(1) Aggregates of short fibers are collected by the raw material quantitative supply device,
A fixed amount is continuously and forcibly fed through a pair of transfer devices such as a belt conveyor toward the approximate center of a first rotating body having a large number of small protrusions on its surface, and the agglomerates held by the tip of the transfer device are The powder is scraped off with a large number of small protrusions on the surface of the rotating body and dispersed in the form of monofilaments, and is sprayed onto the surface of a second rotating body, which has a large number of small protrusions on its surface, which is installed in front of the first rotating body in the direction of rotation. By continuously supplying powder to the surface of the rotating body in a fixed amount using a powder quantitative supply device disposed on the upper part of the second rotating body and scattering it, the monofilament-shaped short fibers and the powder are continuously mixed. Method.
けて１対のベルトコンベアー等の移送装置を配設し、短
繊維の凝集体を該原材料定量供給装置により該移送装置
間に定量連続供給する装置を有し、前記移送装置先端部
に於いて強制移送される凝集体が挟着保持され乍ら送り
出される手段を備え、且つ前記回転体の回転方向前方に
表面に多数の小突起を有する第２の回転体を設置し、そ
の上部に粉体の定量連続供給が可能な粉体定量供給装置
を有する短繊維の凝集体をモノフィラメント状に分散し
併せて該短繊維と粉体とを連続的に混合する装置。(2) A transfer device such as a pair of belt conveyors is arranged approximately toward the center of the first rotating body having a large number of small protrusions, and aggregates of short fibers are transferred between the transfer devices by the raw material quantitative supply device. It has a device for continuously supplying a fixed amount of the aggregate to the tip of the transfer device, and has a means for holding and sending out the aggregates forcibly transferred at the tip of the transfer device, and has a large number of particles on the surface in front of the rotational direction of the rotating body. A second rotary body having small protrusions is installed, and a powder quantitative supply device capable of continuously supplying powder is installed on the top of the second rotating body. Aggregates of short fibers are dispersed in the form of monofilaments, and the short fibers and powder are dispersed in the form of monofilaments. A device that continuously mixes with the body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19365288A JPH0243006A (en) | 1988-08-03 | 1988-08-03 | Continuously mixing method and device of powder with short fiber aggregate by dispersing in state of monofilament |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19365288A JPH0243006A (en) | 1988-08-03 | 1988-08-03 | Continuously mixing method and device of powder with short fiber aggregate by dispersing in state of monofilament |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0243006A true JPH0243006A (en) | 1990-02-13 |
| JPH0550965B2 JPH0550965B2 (en) | 1993-07-30 |
Family
ID=16311508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19365288A Granted JPH0243006A (en) | 1988-08-03 | 1988-08-03 | Continuously mixing method and device of powder with short fiber aggregate by dispersing in state of monofilament |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0243006A (en) |
-
1988
- 1988-08-03 JP JP19365288A patent/JPH0243006A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0550965B2 (en) | 1993-07-30 |
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