JP2011067794A - High-shearing-type continuous dispersion apparatus - Google Patents

High-shearing-type continuous dispersion apparatus Download PDF

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JP2011067794A
JP2011067794A JP2009222997A JP2009222997A JP2011067794A JP 2011067794 A JP2011067794 A JP 2011067794A JP 2009222997 A JP2009222997 A JP 2009222997A JP 2009222997 A JP2009222997 A JP 2009222997A JP 2011067794 A JP2011067794 A JP 2011067794A
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rotor
peripheral side
raw material
outer peripheral
gap
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JP4840498B2 (en
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Katsuaki Odagi
克明 小田木
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Sintokogio Ltd
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Sintokogio Ltd
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Priority to JP2009222997A priority Critical patent/JP4840498B2/en
Priority to PCT/JP2010/063136 priority patent/WO2011036949A1/en
Priority to CN2010800035373A priority patent/CN102164660B/en
Priority to KR1020117013083A priority patent/KR101205444B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50—Mixing liquids with solids
    • B01F23/53—Mixing liquids with solids using driven stirrers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50—Mixing liquids with solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/40—Mixers with rotor-rotor system, e.g. with intermeshing teeth
    • B01F27/41—Mixers with rotor-rotor system, e.g. with intermeshing teeth with the mutually rotating surfaces facing each other
    • B01F27/411—Mixers with rotor-rotor system, e.g. with intermeshing teeth with the mutually rotating surfaces facing each other provided with intermeshing elements

Abstract

<P>PROBLEM TO BE SOLVED: To provide a continuous dispersion apparatus for carrying out efficient dispersion by reliably providing shearing energy to all of raw materials. <P>SOLUTION: The shearing-type dispersion apparatus, dispersing raw materials by combining a first rotor 1 and a second rotor 2 face to face to make the raw materials pass through the space between two rotors 1, 2 in the outer circumferential direction, is provided with a first rotation means 8 for rotating the first rotor 1 in the first direction R1, a second rotation means 9 for rotating the second rotor 2 in the second direction R2 reverse to the first direction R1 and has a raw material discharge port 20 to which raw materials are supplied in the rotation center of the first rotor 1 or the second rotor 2. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、効率よく複数の液体またはスラリー（粉末状の物質と液体の混合物）中の粉末状の物質を分散する連続分散装置に関する。   The present invention relates to a continuous dispersion apparatus for efficiently dispersing a powdery substance in a plurality of liquids or slurries (a mixture of a powdery substance and a liquid).

従来、高速回転する円形のローターと、回転しないステーターとの間の狭い空間に、複数の液体またはスラリーを通過させ、高速回転によって発生する高い遠心力と剪断力によって、複数の液体またはスラリー中の粉末状の物質を均一に連続的に分散する装置は公知である（例えば、特許文献１参照）。なお、「分散」とは、スラリー中の粉末状の物質を均一に分散する場合、あるいは、複数の液体を均一に混合する場合を意味するものとする。 Conventionally, a plurality of liquids or slurries are passed through a narrow space between a circular rotor that rotates at a high speed and a stator that does not rotate. An apparatus for uniformly and continuously dispersing a powdery substance is known (for example, see Patent Document 1). Note that “dispersion” means a case where a powdery substance in a slurry is uniformly dispersed or a case where a plurality of liquids are uniformly mixed.

特開２０００−１５３１６７号公報、図１JP 2000-153167 A, FIG.

しかしながら、回転しないステーターの壁面は速度がゼロであるため、ステーター壁面近傍の原料には剪断エネルギーが与えられにくく、分散効率が悪いという欠点があった。
また、剪断力によって原料は局所的には分散されるが、大きなスケールでみると分散状態が異なる部分が偏在することになり、均一な混合物を得るためには、大きなスケールで再混合する必要があった。このため、後工程にバッチ式の分散装置を別途設ける必要があった。
また、１回の処理では目的の分散状態に達しない場合は、原料を循環させるか、複数台の装置を接続して、繰り返し分散処理を行う必要があり、新たな循環用の設備や複数台の装置にかかるコスト・設置面積、または処理時間が増大するという問題があった。
本発明は、上記の問題に鑑みて成されたもので、全ての原料に剪断エネルギーを確実に与えることにより、また、剪断作用による局所的な分散機能と大きなスケールの分散機能とを組み込むことにより、効率的な分散を行う連続式分散装置を提供することを目的とする。 However, since the speed of the wall surface of the stator that does not rotate is zero, the raw material in the vicinity of the stator wall surface is difficult to be given shearing energy and has a disadvantage of poor dispersion efficiency.
In addition, although the raw material is locally dispersed by the shearing force, when viewed on a large scale, portions with different dispersion states are unevenly distributed, and in order to obtain a uniform mixture, it is necessary to remix on a large scale. there were. For this reason, it is necessary to separately provide a batch type dispersion apparatus in the post-process.
In addition, if the target dispersion state cannot be achieved in a single process, it is necessary to circulate the raw materials or connect a plurality of devices to perform repeated dispersion processing. There is a problem that the cost, installation area, or processing time of the apparatus increases.
The present invention has been made in view of the above-mentioned problems. By reliably applying shear energy to all raw materials, and incorporating a local dispersion function by a shearing action and a large-scale dispersion function. An object of the present invention is to provide a continuous dispersion apparatus that performs efficient dispersion.

上記目的を達成するために、本発明の第１の態様に係る剪断式分散装置は、たとえば図１および図２に示すように、第１のローター１と第２のローター２とを対面に組み合わせ、２つのローター１、２間の空間に原料を外周方向に通過させて原料を分散する剪断式分散装置であって、第１のローター１を第１の方向Ｒ１に回転する第１の回転手段８と；第２のローター２を第１の方向Ｒ１とは逆の第２の方向Ｒ２に回転する第２の回転手段９とを備え；第１または第２のローター１の回転中心に前記原料が供給される原料排出口２０が設けられている。     In order to achieve the above object, a shearing dispersion apparatus according to a first aspect of the present invention is a combination of a first rotor 1 and a second rotor 2 facing each other as shown in FIGS. 1 and 2, for example. A shear-type dispersion device that disperses a raw material by allowing the raw material to pass through the space between the two rotors 1 and 2 in the outer circumferential direction, and first rotating means for rotating the first rotor 1 in the first direction R1. 8; and second rotating means 9 for rotating the second rotor 2 in a second direction R2 opposite to the first direction R1; the raw material at the rotation center of the first or second rotor 1; Is provided with a raw material outlet 20.

このように構成すると、第１のローターと第２のローターとが逆の方向に回転するので、全ての原料に剪断エネルギーを確実に与えることができ、効率的な分散を行う連続式分散装置となる。   If comprised in this way, since a 1st rotor and a 2nd rotor rotate in the reverse direction, all the raw materials can give shear energy reliably, and the continuous-type dispersion apparatus which performs efficient dispersion | distribution, Become.

また、本発明の第２の態様に係る剪断式分散装置は、たとえば図１に示すように、第１の態様に係る剪断式分散装置において、原料排出口２０の外周側に第１のローター１の平面２１と第２のローター２の平面３１とにより隙間３が形成され；隙間３の外周側に、隙間３よりも第１のローター１と第２のローター２との間隔が広くなったバッファ部６が形成され；バッファ部６の外周に、第１のローター１と第２のローター２との間隔をバッファ部６より狭くする外周側面３２が第２のローター２に形成される。
このように構成すると、隙間が剪断作用による局所的な分散機能を有し、バッファ部が大きなスケールの分散機能を有するので、効率的な分散を行う連続式分散装置となる。 Moreover, the shear type dispersion apparatus according to the second aspect of the present invention is, for example, as shown in FIG. 1, in the shear type dispersion apparatus according to the first aspect, the first rotor 1 on the outer peripheral side of the material discharge port 20. A gap 3 is formed by the plane 21 of the second rotor 2 and the plane 31 of the second rotor 2; a buffer in which the gap between the first rotor 1 and the second rotor 2 is wider than the gap 3 on the outer peripheral side of the gap 3. A part 6 is formed; on the outer periphery of the buffer part 6, an outer peripheral side surface 32 is formed on the second rotor 2, which makes the distance between the first rotor 1 and the second rotor 2 narrower than the buffer part 6.
If comprised in this way, since a clearance gap has the local dispersion | distribution function by a shearing action, and a buffer part has a dispersion | distribution function of a large scale, it will become a continuous dispersion apparatus which performs efficient dispersion | distribution.

また、本発明の第３の態様に係る剪断式分散装置は、たとえば図１に示すように、第２の態様に係る剪断式分散装置において、外周側面３２が、第１のローター１の回転軸８と平行に、あるいは、回転中心方向に傾斜して形成される。
このように構成すると、外周側面が第１のローターの回転軸と平行に、あるいは、回転中心方向に傾斜して形成されるので、バッファ部の容量を超える量の原料が流入しない限り、バッファ部から原料が外周側に流れず、バッファ部に滞留する。よって、バッファ部に滞留している原料に向かって、隙間から新たな原料が高速流入し激しく混ざり合うため、原料がバッファ部で、より均一に分散される。 In addition, as shown in FIG. 1, for example, the shearing dispersion device according to the third aspect of the present invention is the shearing dispersion device according to the second aspect, in which the outer peripheral side surface 32 is the rotational axis of the first rotor 1. 8 is formed so as to be inclined in parallel with the direction of the center of rotation or toward the center of rotation.
If comprised in this way, since an outer peripheral side surface is formed in parallel with the rotating shaft of a 1st rotor, or it inclines in the rotation center direction, unless the raw material of the quantity exceeding the capacity | capacitance of a buffer part flows in, a buffer part The raw material does not flow from the outer periphery to the buffer part. Therefore, since new raw materials flow in at high speed from the gap toward the raw materials staying in the buffer section and mix violently, the raw materials are more uniformly dispersed in the buffer section.

また、本発明の第４の態様に係る剪断式分散装置は、たとえば図４に示すように、第２または第３の態様に係る剪断式分散装置において、外周側面３２の先端が、回転中心方向に延伸した張り出し６２となっている。
このように構成すると、外周側面の先端が、回転中心方向に延伸した張り出しとなっているので、バッファ部の容量を超える量の原料が流入しない限り、バッファ部から原料が外周側に流れず、バッファ部に滞留する。よって、バッファ部に滞留している原料に向かって、隙間から新たな原料が高速流入し激しく混ざり合うため、原料がバッファ部で、より均一に分散される。 Moreover, the shear type dispersion apparatus according to the fourth aspect of the present invention is the shear type dispersion apparatus according to the second or third aspect, for example, as shown in FIG. The overhang 62 extends in the direction.
When configured in this way, since the tip of the outer peripheral side surface is an overhang extending in the direction of the rotation center, the raw material does not flow from the buffer part to the outer peripheral side unless an amount of raw material exceeding the capacity of the buffer part flows. Stay in the buffer. Therefore, since new raw materials flow in at high speed from the gap toward the raw materials staying in the buffer section and mix violently, the raw materials are more uniformly dispersed in the buffer section.

また、本発明の第５の態様に係る剪断式分散装置は、たとえば図１に示すように、第２ないし第４のいずれかの態様に係る剪断式分散装置において、隙間３が、原料排出口２０に隣接して配置される。
このように構成すると、隙間にある原料に第１のローターおよび第２のローターの回転による遠心力が作用して原料は外周側に流れようとして流速が増し、その内側には負圧が生じ、原料を原料排出口から隙間に吸引する。 Moreover, the shear type dispersion apparatus according to the fifth aspect of the present invention is the shear type dispersion apparatus according to any one of the second to fourth aspects, for example, as shown in FIG. 20 is arranged adjacent to.
If comprised in this way, the centrifugal force by rotation of a 1st rotor and a 2nd rotor will act on the raw material in a crevice, and the flow rate will increase so that a raw material may flow to the perimeter side, a negative pressure will arise inside, The raw material is sucked into the gap from the raw material outlet.

また、本発明の第６の態様に係る剪断式分散装置は、たとえば図１に示すように、第２ないし第５のいずれかの態様に係る剪断式分散装置において、バッファ部６の外周側に、第１のローター１の平面２３と第２のローター２の平面３３とにより、隙間３の間隔以下の間隔の第２の隙間４が形成され；第２の隙間２の外周側に、第２の隙間４より第１のローター１と第２のローター２との間隔が広くなった第２のバッファ部７が形成され；第２のバッファ部７の外周に、第１のローター１と第２のローター２との間隔を第２のバッファ部７より狭くする第２の外周側面２４が第１のローター１に形成される。
このように構成すると、隙間およびバッファ部に加えて、第２の隙間が剪断作用による局所的な分散機能を有し、第２のバッファ部が大きなスケールの分散機能を有するので、繰り返し分散処理を効率的に行う連続式分散装置となる。 Further, a shearing dispersion device according to a sixth aspect of the present invention is the shearing dispersion device according to any one of the second to fifth aspects, for example, as shown in FIG. The flat surface 23 of the first rotor 1 and the flat surface 33 of the second rotor 2 form a second gap 4 having an interval equal to or smaller than the interval of the gap 3; A second buffer portion 7 is formed in which the gap between the first rotor 1 and the second rotor 2 is wider than the gap 4 between the first rotor 1 and the second rotor 7 on the outer periphery of the second buffer portion 7. A second outer peripheral side surface 24 is formed on the first rotor 1 so that the distance from the rotor 2 is narrower than that of the second buffer portion 7.
If comprised in this way, in addition to a clearance gap and a buffer part, since a 2nd clearance gap has a local dispersion | distribution function by a shearing action, and a 2nd buffer part has a dispersion | distribution function of a large scale, it repeats a dispersion | distribution process. It becomes a continuous dispersion apparatus which performs efficiently.

また、本発明の第７の態様に係る剪断式分散装置は、たとえば図１に示すように、第６の態様に係る剪断式分散装置において、バッファ部６は第１のローター１が窪むことにより形成され；外周側面３２は、第２のローター２に形成され；第２のバッファ部７は第２のローター２が窪むことにより形成され；第２の外周側面２４は第１のローター１に形成される。
このように構成すると、第１のローターと第２のローターとに交互の窪みを形成することにより、隙間、バッファ部、外周側面、第２の隙間、第２のバッファ部および第２の外周側面が形成されるので、局所的な剪断と、これよりも大きなスケールの平均化混合を、交互に連続的に行う分散装置の製造が容易となる。 Further, the shearing dispersion device according to the seventh aspect of the present invention is, for example, as shown in FIG. 1, in the shearing dispersion device according to the sixth aspect, the buffer portion 6 has the first rotor 1 recessed. The outer peripheral side surface 32 is formed in the second rotor 2; the second buffer portion 7 is formed by the depression of the second rotor 2; and the second outer peripheral side surface 24 is formed in the first rotor 1. Formed.
If comprised in this way, a clearance gap, a buffer part, an outer peripheral side surface, a 2nd clearance gap, a 2nd buffer part, and a 2nd outer peripheral side surface will be formed by forming an alternately hollow in a 1st rotor and a 2nd rotor. Therefore, it is easy to manufacture a dispersion apparatus in which local shearing and averaging mixing of a larger scale are alternately and continuously performed.

本発明によれば、第１のローターと第２のローターとを対面に組み合わせ、２つのローター間の空間に原料を外周方向に通過させて原料を分散する剪断式分散装置であって、第１のローターを第１の方向に回転する第１の回転手段と、第２のローターを第１の方向とは逆の第２の方向に回転する第２の回転手段とを備え、第１のローターの回転中心に前記原料が供給される原料排出口が設けられているので、全ての原料に剪断エネルギーを効率的に与えることにより効率的な分散を行う剪断式分散装置となる。
また、原料排出口の外周側に第１のローターの平面と第２のローターの平面とにより隙間が形成され、隙間の外周側に、隙間よりも第１のローターと第２のローターとの間隔が広くなったバッファ部が形成され、バッファ部の外周に、第１のローターと第２のローターとの間隔をバッファ部より狭くする外周側面が第１のローターおよび／または第２のローターに形成されるので、局所的な剪断作用の後に大きなスケールの平均化混合作用を発生させ、局所的な剪断作用とこれよりも大きなスケールの平均化混合機能を組み込むことで、効率的な分散が可能になる。 According to the present invention, the first rotor and the second rotor are combined so as to face each other, and the shearing dispersion device disperses the raw material by passing the raw material in the outer circumferential direction through the space between the two rotors. First rotor for rotating the first rotor in a first direction, and second rotating means for rotating the second rotor in a second direction opposite to the first direction. Since the raw material discharge port through which the raw material is supplied is provided at the center of rotation, a shear type dispersing device that performs efficient dispersion by efficiently applying shear energy to all the raw materials is obtained.
Further, a gap is formed on the outer peripheral side of the raw material discharge port by the plane of the first rotor and the plane of the second rotor, and the distance between the first rotor and the second rotor on the outer peripheral side of the gap is greater than the gap. Is formed, and an outer peripheral side surface is formed on the first rotor and / or the second rotor so that an interval between the first rotor and the second rotor is narrower than that of the buffer unit. Therefore, it is possible to generate a large-scale averaging mixing action after the local shearing action, and incorporate the local shearing action and the larger-scale averaging mixing function to enable efficient dispersion. Become.

２つのローターを組み合わせた状態の断面概略図である。It is the cross-sectional schematic of the state which combined two rotors. 装置主要部の断面概略図である。It is the cross-sectional schematic of an apparatus principal part. 本発明及び従来装置の、断面速度分布の模式図である。It is a schematic diagram of a cross-sectional velocity distribution of the present invention and a conventional apparatus. バッファ部の容量を増加させる場合の構造例である。It is a structural example in the case of increasing the capacity of the buffer unit.

以下、本発明を実施するための最良の形態を説明する。なお、図中、互いに同一又は相当する装置等には同一符号を付し、重複した説明は省略する。本発明は、高速回転する２つのローターを互いに逆方向に回転するように組み合わせ、その間の狭い空間に原料を遠心力によって通過させ、複数の原料を均一に分散させる装置である。図１に示すように、凹凸を有する２枚のローター１・２を、回転中心軸を同一にして、鉛直方向に対向するように設置すると、それぞれの凹凸部の組み合わせによって、狭い隙間３〜５と広い空間６・７が交互に配列される構造となる。ここで、高い剪断力を発生させる狭い空間３〜５を剪断力発生部、これより大きなスケールの混合を行う広い空間６・７をバッファ部と呼ぶことにする。図２に示すように、ローター１・２はそれぞれ中空の回転軸８・９に接続され、これらの回転軸８・９は、軸受１５を介し強固に固定された軸受箱１６で支えられ（固定方法は図示せず）、ベルト、チェーン、歯車などと接続された電動機（図示せず）で駆動され、その回転方向Ｒ１・Ｒ２は互いに逆となる。ここでは、回転軸８・９をそれぞれ原料供給口１２・１４の側から見て、時計方向に回転することとする。回転数は、対象原料や目標とする分散の度合によって、任意に設定することができる。原料供給口１２・１４に供給された原料は、中空回転軸の中空部を貫流してローター１・２の回転中心に設けられた原料排出口２０から２枚のローター１・２の間に供給される。なお、ここでは中空回転軸９の原料排出口は栓１０によって原料が流入・流出しないようになっている。   Hereinafter, the best mode for carrying out the present invention will be described. In the drawings, the same or corresponding devices are denoted by the same reference numerals, and redundant description is omitted. The present invention is an apparatus in which two rotors rotating at high speed are combined so as to rotate in opposite directions, and a raw material is passed through a narrow space between them by centrifugal force to uniformly disperse a plurality of raw materials. As shown in FIG. 1, when two rotors 1 and 2 having irregularities are installed so as to face each other in the vertical direction with the same rotation center axis, narrow gaps 3 to 5 are obtained depending on the combination of the respective irregularities. And wide spaces 6 and 7 are alternately arranged. Here, the narrow spaces 3 to 5 for generating a high shear force are referred to as shear force generating portions, and the wide spaces 6 and 7 for mixing a larger scale are referred to as buffer portions. As shown in FIG. 2, the rotors 1 and 2 are respectively connected to hollow rotary shafts 8 and 9, and these rotary shafts 8 and 9 are supported by a bearing box 16 that is firmly fixed via a bearing 15 (fixed). The method is not shown) and is driven by an electric motor (not shown) connected to a belt, chain, gear, etc., and the rotation directions R1 and R2 are opposite to each other. Here, the rotary shafts 8 and 9 are rotated in the clockwise direction when viewed from the raw material supply ports 12 and 14, respectively. The number of rotations can be arbitrarily set depending on the target raw material and the target degree of dispersion. The raw material supplied to the raw material supply ports 12 and 14 flows between the two rotors 1 and 2 from the raw material discharge port 20 provided at the rotation center of the rotors 1 and 2 through the hollow portion of the hollow rotary shaft. Is done. Here, the raw material discharge port of the hollow rotary shaft 9 is configured so that the raw material does not flow in or out by the stopper 10.

本分散装置においては、図１でローター１・２の外径Dは２００ｍｍであり、高さｈ１及びｈ２はそれぞれ５５、１５ｍｍである。剪断力発生部３〜５の隙間は０．０５〜２ｍｍまで調整が可能である。なお、剪断力発生部３〜５の隙間は同一である必要はなく、ローター１・２の形状・寸法の設計により、目的に応じ適宜変更することができる。たとえば、剪断力発生部３、剪断力発生部４、剪断力発生部５と隙間の間隔を順次狭くすることにより、原料の凝集粒子を順次細かく分解すると、均一に分散しやすくなる。バッファ部６・７の外周側面３２・２４の角度α・βはそれぞれ５０度・７０度であるが、この角度に限定されるものではなく、ローター１・２の形状・寸法の設計により、鋭角あるいは直角として、すなわち、回転中心方向（中空回転軸８・９の方向）に傾斜してあるいは中空回転軸８・９と平行に、適宜選定することができる。また、本分散装置の場合の回転数はインバーター制御により０〜１７２０ｒｐｍの間で設定ができるが、電動機、プーリー、ギヤなどの選定によって適宜変更することができる。   In this dispersing apparatus, the outer diameter D of the rotors 1 and 2 in FIG. 1 is 200 mm, and the heights h1 and h2 are 55 and 15 mm, respectively. The clearance between the shearing force generators 3 to 5 can be adjusted to 0.05 to 2 mm. In addition, the clearance gap between the shear force generation | occurrence | production parts 3-5 does not need to be the same, and can be suitably changed according to the objective by the design of the shape and dimension of the rotors 1 and 2. For example, if the gaps between the shearing force generator 3, the shearing force generator 4, the shearing force generator 5 and the gap are sequentially narrowed, the agglomerated particles of the raw material are sequentially finely decomposed to facilitate uniform dispersion. The angles α and β of the outer peripheral side surfaces 32 and 24 of the buffer units 6 and 7 are 50 degrees and 70 degrees, respectively, but are not limited to these angles, and the acute angle depends on the shape and dimensions of the rotors 1 and 2 Alternatively, it can be appropriately selected as a right angle, that is, inclined in the direction of the rotation center (direction of the hollow rotation shafts 8 and 9) or parallel to the hollow rotation shafts 8 and 9. Moreover, although the rotation speed in the case of this dispersion | distribution apparatus can be set between 0-1720 rpm by inverter control, it can change suitably by selection of an electric motor, a pulley, a gear, etc.

ここで、図１を参照して、剪断力発生部３・４・５とバッファ部６・７の構成を説明する。上部ローター１の、下部ローター２と対面する面は、原料排出口２０の外周に回転軸に垂直な平面２１として形成される。平面２１の外周側に内周側面２２と平面２１に平行な平面２３と外周側面２４とで構成された窪みが形成される。外周側面２４は、平面２１の面よりも下部ローター２側に延伸し、その先端に平面２１に平行な平面２５が形成される。下部ローター２の上部ローター１と対面する面には、平面２１と平行に対向する平面３１が形成され、平面３１は内周側面２２を越えて外周側に延伸する。平面３１から外周側面３２が上部ローター１に向けて形成され、外周側面３２の先端から平面２３に平行に対面する平面３３が形成される。平面３３は、外周側面２４よりも内周側に位置する内周側面３４と平面２５に平行に対面する平面３５とで窪みを形成する。   Here, with reference to FIG. 1, the structure of the shearing force generation | occurrence | production part 3 * 4 * 5 and the buffer part 6 * 7 is demonstrated. The surface of the upper rotor 1 that faces the lower rotor 2 is formed on the outer periphery of the material discharge port 20 as a flat surface 21 that is perpendicular to the rotation axis. A recess composed of an inner peripheral side surface 22, a plane 23 parallel to the plane 21 and an outer peripheral side surface 24 is formed on the outer peripheral side of the plane 21. The outer peripheral side surface 24 extends to the lower rotor 2 side with respect to the surface of the flat surface 21, and a flat surface 25 parallel to the flat surface 21 is formed at the tip thereof. A plane 31 facing the upper rotor 1 of the lower rotor 2 is formed parallel to the plane 21, and the plane 31 extends beyond the inner peripheral side surface 22 to the outer peripheral side. An outer peripheral side surface 32 is formed from the flat surface 31 toward the upper rotor 1, and a flat surface 33 facing in parallel to the flat surface 23 from the tip of the outer peripheral side surface 32 is formed. The flat surface 33 forms a recess with an inner peripheral side surface 34 located on the inner peripheral side with respect to the outer peripheral side surface 24 and a flat surface 35 facing in parallel with the flat surface 25.

上記の面を有する上部ローター１と下部ローター２とを組み合わせることにより、平面２１と平面３１とで剪断力発生部３を形成し、平面２３と平面３３とで剪断力発生部４を形成し、平面２５と平面３５とで剪断力発生部５を形成する。また、内周側面２２と平面２３と外周側面３２と平面３１とで囲まれた領域がバッファ部６を、内周側面３４と平面２３と外周側面２４と平面３５とで囲まれた領域がバッファ部７を形成する。外周側面２４は、平面２１の面よりも下部ローター２側に延伸してバッファ部７を形成するので、バッファ部７の容量が大きくなり、より大きなスケールでの分散による均一化が行われる。   By combining the upper rotor 1 and the lower rotor 2 having the above surfaces, the plane 21 and the plane 31 form the shear force generating unit 3, the plane 23 and the plane 33 form the shear force generating unit 4, The flat surface 25 and the flat surface 35 form the shearing force generator 5. The area surrounded by the inner peripheral side surface 22, the flat surface 23, the outer peripheral side surface 32, and the flat surface 31 is the buffer unit 6, and the region surrounded by the inner peripheral side surface 34, the flat surface 23, the outer peripheral side surface 24, and the flat surface 35 is the buffer. Part 7 is formed. Since the outer peripheral side surface 24 extends to the lower rotor 2 side than the plane 21 to form the buffer portion 7, the capacity of the buffer portion 7 is increased, and uniformization by dispersion on a larger scale is performed.

なお、上記の例では、外周側面２４が平面２１の面より下部ローター２側に延伸するものとして説明したが、外周側面２４は平面２１の面と同じ位置までしか延伸せず、すなわち、平面２１と平面２５とが同一平面上であってもよい。このように構成すると、上部ローター１に１つの窪みを形成し、下部ローター２に１つの突起（外周側面３２と平面３３と内周側面３４で囲まれた部分）を形成することにより、３つの剪断力発生部３〜５と２つのバッファ部６・７を形成することができ、局所的な剪断と、この局所的部分よりも大きなスケールの平均化混合を、交互に連続的に行う分散装置の製造が容易となる。また、外周側面２４は平面２１の面の手前側までしか延伸していなくてもよい。   In the above example, the outer peripheral side surface 24 has been described as extending to the lower rotor 2 side from the plane 21 surface. However, the outer peripheral side surface 24 extends only to the same position as the plane 21 surface, that is, the plane 21 And the plane 25 may be on the same plane. With this configuration, one recess is formed in the upper rotor 1, and one protrusion (a portion surrounded by the outer peripheral side surface 32, the flat surface 33, and the inner peripheral side surface 34) is formed on the lower rotor 2. Dispersing apparatus capable of forming shearing force generating units 3 to 5 and two buffer units 6 and 7, and alternately and continuously performing local shearing and averaging mixing of a scale larger than the local part. Is easy to manufacture. Further, the outer peripheral side surface 24 may extend only to the near side of the plane 21.

また、平面２１、２３、２５、３１、３３、３５は、回転軸に垂直で、互いに平行であるとして説明したが、それぞれ回転軸に垂直ではなく、また、互いに平行でなくてもよい。さらに、剪断力発生部３〜５を形成するために対面する平面同士も平行でなくてもよい。剪断力発生部３〜５の隙間が外周側に向けて狭くなるようにすることにより、原料の凝集粒子を順次細かく分解する構造とすることができる。   The planes 21, 23, 25, 31, 33, and 35 have been described as being perpendicular to the rotation axis and parallel to each other, but are not necessarily perpendicular to the rotation axis and may not be parallel to each other. Furthermore, the planes facing each other in order to form the shearing force generators 3 to 5 may not be parallel to each other. By making the gap between the shearing force generating portions 3 to 5 narrow toward the outer peripheral side, it is possible to make a structure in which the aggregated particles of the raw material are finely decomposed sequentially.

バッファ部６・７は、剪断力発生部３・４にて局所的な分散を受けた原料を混合するために液を貯留する領域であり、大きな容量を有する。そのために、たとえば、バッファ部６を形成するための平面３１の半径方向の長さＬ１は、平面２１と対向して剪断力発生部３を形成する半径方向の長さＬ２の、少なくとも０．５倍以上、通常は１倍以上の長さとする。また、バッファ部６の高さ（剪断力発生部３の隙間の間隔と内周側面２２の高さの和）は、剪断力発生部３の隙間の間隔の、少なくとも３倍以上、通常は５倍以上の高さとする。   The buffer units 6 and 7 are regions for storing liquids for mixing the raw materials that have been locally dispersed by the shear force generation units 3 and 4 and have a large capacity. Therefore, for example, the length L1 in the radial direction of the plane 31 for forming the buffer portion 6 is at least 0.5 of the length L2 in the radial direction facing the plane 21 and forming the shearing force generating portion 3. The length is at least twice, usually at least one time. Further, the height of the buffer unit 6 (the sum of the gap interval of the shearing force generation unit 3 and the height of the inner peripheral side surface 22) is at least three times the gap interval of the shearing force generation unit 3, usually 5 Make it at least twice as high.

図１において、原料の流れが矢印で示されている。便宜上、一つの流れしか示していないが、実際にはローター１・２によって構成される空間の至るところで同様の流れが発生している。ここで、再び図２も参照する。ローター１・２が回転している状態で、中空回転軸８に接続され回り止め（図示せず）が施された回転継手１１の原料供給口１２より原料を供給すると、原料は原料排出口２０から、２つのローター１・２の間に供給される。原料は２つのローター１・２から構成される剪断力発生部３、バッファ部６、剪断力発生部４、バッファ部７、剪断力発生部５の順に、遠心力の方向に沿って通過し、ローターの外周の原料排出部１３から排出される。原料が遠心力により外周方向に流れ、流速が増すので、原料排出口２０は負圧となり、原料排出口２０からの原料の流れは促進される。 In FIG. 1, the flow of raw materials is indicated by arrows. For convenience, only one flow is shown, but in reality, a similar flow is generated throughout the space formed by the rotors 1 and 2. Here, FIG. 2 will be referred to again. When the raw material is supplied from the raw material supply port 12 of the rotary joint 11 connected to the hollow rotary shaft 8 and provided with a detent (not shown) while the rotors 1 and 2 are rotating, the raw material is discharged from the raw material discharge port 20. From between the two rotors 1 and 2. The raw material passes along the direction of the centrifugal force in the order of the shearing force generating unit 3, the buffer unit 6, the shearing force generating unit 4, the buffer unit 7, and the shearing force generating unit 5 composed of the two rotors 1 and 2, It is discharged from the raw material discharge portion 13 on the outer periphery of the rotor. Since the raw material flows in the outer circumferential direction by the centrifugal force and the flow velocity increases, the raw material discharge port 20 becomes negative pressure, and the flow of the raw material from the raw material discharge port 20 is promoted.

なお、中空回転軸９の排出口の栓１０を除去し、原料供給口１４から別の原料を供給し、原料供給口１２から供給した原料とローター部で混合することもできるが、この場合はローター及び中空軸の中心軸を水平に設置するか、または原料供給用のポンプが必要となる。原料排出口２０における負圧は、通常、原料を中空回転軸９の高さだけ吸引するほどに大きくはないからである。 In addition, although the plug 10 at the discharge port of the hollow rotary shaft 9 can be removed, another raw material can be supplied from the raw material supply port 14, and the raw material supplied from the raw material supply port 12 can be mixed in the rotor portion. The rotor and the central shaft of the hollow shaft are installed horizontally, or a pump for supplying raw materials is required. This is because the negative pressure at the raw material discharge port 20 is usually not so great as to suck the raw material by the height of the hollow rotary shaft 9.

また、本分散装置では２つの回転軸はそれぞれ別個の電動機から駆動されるが、歯車などで動力を分配し、１台の電動機で駆動してもよい。これらの電動機、ベルト、チェーン、歯車などと、中空回転軸８・９が回転手段を構成する。 In the present dispersion apparatus, the two rotating shafts are driven by separate motors, but the power may be distributed by gears or the like and may be driven by a single motor. These electric motors, belts, chains, gears, and the like, and the hollow rotary shafts 8 and 9 constitute rotating means.

次に、原料の分散プロセスについて、図１を用いて説明する。まず原料は、１段目の剪断力発生部３を通過するときに高い剪断力を受け、乳化あるいは微粒子の凝集物の分解がなされる。このとき、２つのローター１・２が両方とも同じ速度で回転しているとすれば、剪断力発生部３のＡ−Ａ矢視及びＢ部の原料の速度分布は図３（ａ）に示すようになり、速度ゼロの部分は発生しない。一方、ローター１・２が片側しか回転しない従来の方式では、下部ローター２を固定とすると図３（ｂ）に示すような速度分布となり、下部ローター２の壁面の速度は回転方向でも遠心力による半径方向でもゼロとなるため、下部ローター２壁面近傍の原料は分散されにくい。本発明では、回転方向の速度がゼロとなる２つのローター１・２の中間位置でも遠心力による半径方向の速度はゼロとはならない。それは、その中間位置の両側で遠心力による半径方向の速度が同じ外側を向いて生じており、その剪断力（粘性）を受ける中間位置も同じ外側向きに引っ張られるからである。速度ゼロとなる部分がないため、原料に確実に剪断力を付与することができ、分散効果が得られる。厳密には、図３（ａ）Ａ−Ａ矢視に示すように、２つのローター壁面の中間位置では剪断力が弱くなるが、全く速度がない固定ローター壁面とは異なり、高速回転するため速度変動が激しく、分散効果に影響を及ぼすものではない。剪断力発生部で高い剪断力を受けて局所的に乳化あるいは微粒子の凝集物の分解および／あるいは分散がなされた原料は、剪断力発生部３から排出されたあと、１段目のバッファ部６に流入する。バッファ部６には、外周側にローター１・２間の間隔を狭くする外周側面３２が形成されているため、バッファ部６に流入した原料はバッファ部の容量を超える量の原料が流入しない限り、バッファ部から流出せず、滞留する。バッファ部６内の原料は、遠心力によってバッファ部６内の外周側面３２に押し付けられるが、バッファ部６の外周側面３２は図１に示すように流れに対し抵抗となるように傾斜がついているため、原料がこのバッファ部６から排出されるにはバッファ部の容量を超える原料がバッファ部６に流入する必要がある。このとき、先にバッファ部６に流入し滞留している原料は、後に剪断力発生部３からバッファ部６に高速流入してくる原料と激しく混じり合うことになり、局所的に乳化・分散した原料は、この局所的部分よりも大きなスケールでの混合によって平均化される。続いて、原料は２段目の剪断力発生部４とバッファ部７を通過して１段目と同様の分散が行われ、最終の３段目の剪断力発生部５を通過し、さらに分散が行われる。   Next, the raw material dispersion process will be described with reference to FIG. First, the raw material is subjected to a high shearing force when passing through the first-stage shearing force generating unit 3, and is emulsified or the aggregates of fine particles are decomposed. At this time, if the two rotors 1 and 2 are both rotating at the same speed, the A-A arrow view of the shearing force generating section 3 and the speed distribution of the raw material of the B section are shown in FIG. Thus, the zero speed portion does not occur. On the other hand, in the conventional method in which the rotors 1 and 2 rotate only on one side, if the lower rotor 2 is fixed, a speed distribution as shown in FIG. 3B is obtained, and the speed of the wall surface of the lower rotor 2 depends on the centrifugal force even in the rotational direction. Since it becomes zero even in the radial direction, the raw material near the wall surface of the lower rotor 2 is not easily dispersed. In the present invention, the radial speed due to the centrifugal force does not become zero even at an intermediate position between the two rotors 1 and 2 where the rotational speed becomes zero. This is because the radial speed due to the centrifugal force is generated toward the same outside on both sides of the intermediate position, and the intermediate position receiving the shearing force (viscosity) is also pulled outward in the same direction. Since there is no portion where the speed becomes zero, a shearing force can be reliably applied to the raw material, and a dispersion effect can be obtained. Strictly speaking, as shown by arrows AA in FIG. 3 (a), the shearing force is weak at an intermediate position between the two rotor wall surfaces, but unlike the fixed rotor wall surface having no speed at all, the rotational speed is high. Fluctuating and does not affect the dispersion effect. The raw material that is locally emulsified or decomposed and / or dispersed of the fine particle agglomerates by receiving a high shearing force in the shearing force generating part is discharged from the shearing force generating part 3 and then the first stage buffer part 6. Flow into. Since the buffer portion 6 is formed with an outer peripheral side surface 32 that narrows the distance between the rotors 1 and 2 on the outer peripheral side, the raw material that has flowed into the buffer portion 6 has no amount of raw material exceeding the capacity of the buffer portion. , Stays without flowing out of the buffer. The raw material in the buffer unit 6 is pressed against the outer peripheral side surface 32 in the buffer unit 6 by centrifugal force, but the outer peripheral side surface 32 of the buffer unit 6 is inclined so as to be resistant to flow as shown in FIG. Therefore, in order for the raw material to be discharged from the buffer unit 6, it is necessary for the raw material exceeding the capacity of the buffer unit to flow into the buffer unit 6. At this time, the raw material that has flowed into and stayed in the buffer unit 6 first violently mixed with the raw material that subsequently flows into the buffer unit 6 from the shear force generating unit 3 at high speed, and was locally emulsified and dispersed. The raw material is averaged by mixing on a larger scale than this local part. Subsequently, the raw material passes through the second-stage shear force generation unit 4 and the buffer unit 7 and is dispersed in the same manner as in the first stage, and then passes through the final third-stage shear force generation unit 5 to be further dispersed. Is done.

ここで、原料の均一な混合を実現するには、本装置に供給される原料は、前工程の予備混合によって、剪断発生部の最小隙間のスケール以下の乳化や凝集物への分解がなされ、かつ、少なくとも最小剪断部の容量（体積＝剪断面積×隙間の大きさ）の単位以下の均一な混合がなされているのが好ましい。剪断発生部３の隙間を通過するスケールで液の乳化や凝集物の分解がなされていないと、剪断発生部３への流入時に、隙間よりも大きなスケールの液滴や凝集物が剪断発生部３の隙間に入り込みにくくなるため不均一な分散や詰まりの原因となったり、過大な応力の発生によって装置に損傷を与える原因ともなる。また、最小剪断部の体積単位の均一な混合とは、予備混合された原料を、最小剪断部と同等の体積分だけ任意に取り出した場合、その体積中の複数の原料の割合が一定ということであり、乳化や微粒子の凝集物の分解には無関係な状態である。たとえば、図１においては最小剪断部の容量は隙間３の部分となり、隙間３が０．１ｍｍのとき、その体積は約０．３ｍｌとなる。なお、本発明の分散機を予備混合に利用する場合は、これらの条件が全て当てはまる必要はない。   Here, in order to achieve uniform mixing of the raw materials, the raw materials supplied to this apparatus are emulsified below the scale of the minimum gap of the shearing portion or decomposed into aggregates by the preliminary mixing in the previous step. In addition, it is preferable that uniform mixing at least equal to or less than the unit of the capacity (volume = shear area × gap size) of the minimum shearing portion. If the liquid is not emulsified and the aggregates are not decomposed on the scale passing through the gaps of the shearing unit 3, droplets and aggregates having a larger scale than the gaps are generated when flowing into the shearing unit 3. This makes it difficult to enter the gaps between them, causing non-uniform dispersion and clogging, and causing excessive stress to damage the apparatus. In addition, the uniform mixing of the volume unit of the minimum shearing part means that when the premixed raw material is arbitrarily taken out by the same volume as the minimum shearing part, the ratio of the plurality of raw materials in the volume is constant. It is in a state irrelevant to emulsification and decomposition of fine particle aggregates. For example, in FIG. 1, the capacity of the minimum shearing portion is the gap 3 portion, and when the gap 3 is 0.1 mm, the volume is about 0.3 ml. In addition, when using the disperser of this invention for premixing, it is not necessary to apply all these conditions.

なお、バッファ部６・７の形状は、図１に示すような外周側面３２・２４が傾斜する形状に限定されるわけではなく、バッファ部６・７の容量をより増加させるためには、図４のように、バッファ部６・７の外周側面３２・２４の先端に、回転中心方向（中空回転軸８・９方向）に延伸する張り出し部６２・５４を有する構造にしてもよい。また、張り出し部６２の上部ローター４１の平面２３と対面する平面６３も剪断力発生部４を形成するので、剪断力発生部４の半径方向の長さを長くでき、局所的な分散をより多く行うことができる。同様に、張り出し部５４の下部ローター４２の平面３５と対面する平面５５もより大きな剪断力発生部５を形成して、局所的な分散をより多く行うことができる。   The shape of the buffer units 6 and 7 is not limited to the shape in which the outer peripheral side surfaces 32 and 24 are inclined as shown in FIG. 1. In order to further increase the capacity of the buffer units 6 and 7, FIG. As shown in FIG. 4, the end portions of the outer peripheral side surfaces 32 and 24 of the buffer portions 6 and 7 may have a projecting portion 62 and 54 extending in the rotation center direction (the direction of the hollow rotation shafts 8 and 9). Further, since the flat surface 63 facing the flat surface 23 of the upper rotor 41 of the overhanging portion 62 also forms the shear force generating portion 4, the radial direction length of the shear force generating portion 4 can be increased, and local dispersion can be increased. It can be carried out. Similarly, the plane 55 facing the plane 35 of the lower rotor 42 of the overhanging section 54 can also form a larger shearing force generating section 5 to perform more local dispersion.

また、本説明では剪断力発生部は３段、バッファ部は２段の構成となっているが、この段数の組み合わせに限定されるわけではなく、対象原料や目標とする分散の度合によって任意の組み合わせをとることができる。   Further, in this description, the shear force generation unit has a three-stage configuration and the buffer unit has a two-stage configuration. However, the present invention is not limited to the combination of the number of stages, and can be arbitrarily determined depending on the target raw material and the target degree of dispersion. Combinations can be taken.

１ 上部ローター
２ 下部ローター
３〜５ 剪断力発生部（隙間）
６、７ バッファ部
８、９ 中空回転軸（回転手段）
１０ 内部栓
１１ 回転継手
１２、１４ 原料供給口
１３ 原料排出部
１５ 軸受
１６ 軸受箱
２０ 原料排出口
２１、２３、２５、３１、３３、３５、５５、６３ 平面
２４、３２ 外周側面
６２、５４ 張り出し部 1 Upper rotor 2 Lower rotor 3-5 Shear force generation part (gap)
6, 7 Buffer unit 8, 9 Hollow rotating shaft (rotating means)
DESCRIPTION OF SYMBOLS 10 Inner plug 11 Rotary joint 12, 14 Raw material supply port 13 Raw material discharge part 15 Bearing 16 Bearing box 20 Raw material discharge port 21, 23, 25, 31, 33, 35, 55, 63 Plane 24, 32 Outer peripheral side surface 62, 54 Overhang Part

Claims (7)

第１のローターと第２のローターとを対面に組み合わせ、前記２つのローター間の空間に原料を外周方向に通過させて前記原料を分散する剪断式分散装置であって：
前記第１のローターを第１の方向に回転する第１の回転手段と；
前記第２のローターを前記第１の方向とは逆の第２の方向に回転する第２の回転手段とを備え；
前記第１または第２のローターの回転中心に前記原料が供給される原料排出口が設けられた；
剪断式分散装置。 A shearing type dispersing device that combines a first rotor and a second rotor in a face-to-face relationship, and disperses the raw material by passing the raw material in the outer circumferential direction through a space between the two rotors:
First rotating means for rotating the first rotor in a first direction;
Second rotating means for rotating the second rotor in a second direction opposite to the first direction;
A raw material outlet through which the raw material is supplied is provided at the rotation center of the first or second rotor;
Shear type dispersion device. 前記原料排出口の外周側に前記第１のローターの平面と前記第２のローターの平面とにより隙間が形成され；
前記隙間の外周側に、前記隙間より前記第１のローターと前記第２のローターとの間隔が広くなったバッファ部が形成され；
前記バッファ部の外周に、前記第１のローターと前記第２のローターとの間隔を前記バッファ部より狭くする外周側面が前記前記第２のローターに形成された；
請求項１の剪断式分散装置。 A gap is formed by the plane of the first rotor and the plane of the second rotor on the outer peripheral side of the raw material discharge port;
A buffer portion is formed on an outer peripheral side of the gap, the gap between the first rotor and the second rotor being wider than the gap;
An outer peripheral side surface formed on the outer periphery of the buffer portion, the outer periphery of which the interval between the first rotor and the second rotor is narrower than the buffer portion is formed on the second rotor;
The shear type dispersion apparatus according to claim 1. 前記外周側面が、前記第１のローターの回転軸と平行に、あるいは、回転中心方向に傾斜して形成された；
請求項２の剪断式分散装置。 The outer peripheral side surface is formed in parallel with the rotation axis of the first rotor or inclined toward the rotation center;
The shear type dispersion apparatus according to claim 2. 前記外周側面の先端が、回転中心方向に延伸した張り出しとなっている；
請求項２または請求項３の剪断式分散装置。 The tip of the outer peripheral side surface is an overhang extending in the rotation center direction;
4. A shearing dispersion apparatus according to claim 2 or claim 3. 前記隙間が、前記原料排出口に隣接して配置される；
請求項２ないし請求項４のいずれか１項の剪断式分散装置。 The gap is disposed adjacent to the material outlet;
The shearing dispersion device according to any one of claims 2 to 4. 前記バッファ部の外周側に、前記第１のローターの平面と前記第２のローターの平面とにより、前記隙間の間隔以下の間隔の第２の隙間が形成され；
前記第２の隙間の外周側に、前記第２の隙間より前記第１のローターと前記第２のローターとの間隔が広くなった第２のバッファ部が形成され；
前記第２のバッファ部の外周に、前記第１のローターと前記第２のローターとの間隔を前記第２のバッファ部より狭くする第２の外周側面が前記第１のローターに形成された；
請求項２ないし請求項５のいずれか１項の剪断式分散装置。 A second gap having an interval equal to or less than the gap is formed by the plane of the first rotor and the plane of the second rotor on the outer peripheral side of the buffer portion;
A second buffer portion having an interval between the first rotor and the second rotor wider than the second gap is formed on an outer peripheral side of the second gap;
A second outer peripheral side surface is formed on the first rotor on an outer periphery of the second buffer portion, so that a distance between the first rotor and the second rotor is narrower than that of the second buffer portion;
The shear type dispersion apparatus according to any one of claims 2 to 5. 前記バッファ部は前記第１のローターが窪むことにより形成され；
前記外周側面は、前記第２のローターに形成され；
前記第２のバッファ部は前記第２のローターが窪むことにより形成され；
前記第２の外周側面は前記第１のローターに形成された；
請求項６の剪断式分散装置 The buffer portion is formed by recessing the first rotor;
The outer peripheral side is formed in the second rotor;
The second buffer portion is formed by recessing the second rotor;
The second outer peripheral side is formed in the first rotor;
7. A shearing dispersion device according to claim 6.
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KR20120064647A (en) 2012-06-19
CN102164660A (en) 2011-08-24
JP4840498B2 (en) 2011-12-21
KR101205444B1 (en) 2012-11-27
WO2011036949A1 (en) 2011-03-31

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