JP2000000453A - Dispersion apparatus and dispersion method - Google Patents
Dispersion apparatus and dispersion methodInfo
- Publication number
- JP2000000453A JP2000000453A JP17097598A JP17097598A JP2000000453A JP 2000000453 A JP2000000453 A JP 2000000453A JP 17097598 A JP17097598 A JP 17097598A JP 17097598 A JP17097598 A JP 17097598A JP 2000000453 A JP2000000453 A JP 2000000453A
- Authority
- JP
- Japan
- Prior art keywords
- dispersion
- dispersion chamber
- slurry
- chamber
- peripheral surface
- 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.)
- Abandoned
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】 本発明は、塗料やインク、染料
顔料、セラミックス粒子磁性粒子等の固形粒子をさらに
細分化するための分散装置及び分散方法に関する。特に
本発明は、固定分を含むスラリーを導入する導入部と分
散作用を受けたスラリーを排出する排出部とを備えた筒
状の分散室と、該分散室の内部に配置され回転駆動され
る攪拌部材とを備え、分散室の内部にはガラスビーズ等
の分散媒体が充填されて、攪拌部材の攪拌作用を受ける
分散媒体によってスラリーに与えられる剪断作用でスラ
リー内の固形分の分散を行なうようになった分散装置及
び分散方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dispersing apparatus and a dispersing method for further subdividing solid particles such as paints, inks, dye pigments, and ceramic particles. In particular, the present invention provides a cylindrical dispersion chamber having an introduction part for introducing a slurry containing a fixed portion and a discharge part for discharging the slurry subjected to the dispersing action, and is disposed inside the dispersion chamber and driven to rotate. A stirring member is provided, and the inside of the dispersion chamber is filled with a dispersion medium such as glass beads, and the solid content in the slurry is dispersed by the shearing action given to the slurry by the dispersion medium subjected to the stirring action of the stirring member. And a dispersing method.
【０００２】[0002]
【従来技術】 従来のこの種の分散装置は、固定された
筒状の分散室の内部に回転駆動される攪拌部材を配置
し、分散室の内部にはガラスビーズ等の分散媒体を充填
した構成を有する。分散室の軸方向一端に、固形分を含
み分散作用を受けるべきスラリーを導入する導入口が形
成され、分散室の軸方向他端にはビーズ分離用スクリー
ンを備えたスラリー出口が設けられる。スラリーは、ス
ラリー導入口から分散室内に導入され、スラリー押し込
み圧力の作用を受けて分散室内を軸方向に流れてスラリ
ー出口から排出される。この間に、攪拌部材が回転駆動
され、分散媒体に運動を与えるので、スラリーは分散媒
体間に生じる相対的運動により剪断力を受け、スラリー
内の固形分が分散作用を受ける。この従来の分散装置に
おいては、分散媒体は、分散室内をスラリー導入口から
スラリー出口に向かって流れるスラリーに押されて出口
側に押し付けられ、出口を閉塞する傾向がある。したが
って、スラリーの量を多くすることができず、また、分
散媒体の摩耗が激しいという問題が起きる。最近では、
分散径が極端に小さくなる傾向にあるが、それに応じて
分散媒体の直径を小さくすると、スクリーンの目も小さ
くせざるを得ず、出口を閉塞する傾向は一層強まること
になる。2. Description of the Related Art A conventional dispersing apparatus of this type has a structure in which a stirring member that is driven to rotate is disposed inside a fixed cylindrical dispersion chamber, and a dispersion medium such as glass beads is filled inside the dispersion chamber. Having. At one end in the axial direction of the dispersion chamber, an introduction port for introducing a slurry containing a solid content and to be subjected to a dispersion action is formed, and at the other end in the axial direction of the dispersion chamber, a slurry outlet provided with a screen for separating beads is provided. The slurry is introduced into the dispersion chamber from the slurry introduction port, flows in the dispersion chamber in the axial direction under the action of the slurry pushing pressure, and is discharged from the slurry outlet. During this time, the stirring member is driven to rotate and imparts motion to the dispersion medium, so that the slurry receives shearing force due to the relative motion generated between the dispersion media, and the solid content in the slurry undergoes a dispersion action. In this conventional dispersing apparatus, the dispersing medium tends to be pushed by the slurry flowing from the slurry inlet to the slurry outlet in the dispersing chamber and pressed against the outlet, thereby closing the outlet. Therefore, the amount of the slurry cannot be increased, and the abrasion of the dispersion medium is severe. recently,
The diameter of the dispersion tends to be extremely small, but if the diameter of the dispersion medium is reduced accordingly, the size of the screen must be reduced, and the tendency of closing the outlet becomes stronger.
【０００３】特開昭60-48126号公報には、円筒形の外周
面に多数の小孔又はスリットを形成したバスケットを備
える分散装置が開示されている。この分散装置において
は、バスケットは、該バスケット内に多数のガラスビー
ズ等の分散用媒体を収納して分散槽内に回転しないよう
に支持される。バスケット内には攪拌部材が回転自在に
配置され、回転軸によりバスケットに対して相対的に回
転させられる。バスケットの上部にはスラリー導入口が
あり、スラリーはバスケット上部の導入口からバスケッ
ト内部に入り、攪拌部材により与えられる回転力に基づ
く遠心力作用で半径方向外向きの習性を与えられ、円筒
形外周面の小孔又はスリットから分散槽内に排出され
る。この分散装置は、スラリーがこのようにしてバスケ
ットを何回も循環するように構成して、所望の分散効果
を達成するものである。[0003] Japanese Patent Application Laid-Open No. 60-48126 discloses a dispersing apparatus provided with a basket in which a number of small holes or slits are formed in a cylindrical outer peripheral surface. In this dispersing apparatus, the basket stores a large number of dispersion media such as glass beads in the basket and is supported so as not to rotate in the dispersion tank. A stirring member is rotatably arranged in the basket, and is rotated relatively to the basket by a rotation shaft. At the top of the basket, there is a slurry inlet, and the slurry enters the inside of the basket from the inlet at the top of the basket, and is given a radial outward behavior by centrifugal force based on the rotational force given by the stirring member. It is discharged into the dispersion tank through small holes or slits on the surface. The dispersing device is configured such that the slurry circulates through the basket multiple times in order to achieve the desired dispersing effect.
【０００４】ヨーロッパ公開特許公報第0378056 号にも
同様な分散装置が開示されている。このヨーロッパ公開
特許公報の装置では、分散器のバスケットが回転させら
れ、バスケット内の攪拌部材は回転しないように保持さ
れる。また、バスケットは、上下両面にスラリー導入口
となる小孔又はスリットが形成される。これら従来の分
散装置における分散器の構造は、いずれもバスケットの
上下面のいずれか一方又は両方にスラリー導入口となる
小孔又はスリットを形成するものである。しかし、これ
ら小孔又はスリットは、バスケット内の分散用媒体が外
に漏れるのを阻止できるよう、十分に小さくすることが
必要である。そのため、スラリーき流入抵抗が大きくな
り、攪拌部材やバスケットの回転によりスラリーに与え
られる遠心力の作用でスラリーに流動が生じても、スラ
リーの大部分はバスケット内に入らず、バスケットの上
下の表面に沿って流れる傾向を生じる。その結果、バス
ケット内を縦貫するスラリーの流量が少なくなり、分散
に時間を要することとなる。また、前記特許において
は、バスケットがスラリーの内に入って回転しているた
め、バスケット内に導入されたスラリーも分散が進むに
従ってスラリー内の末分散粒子の含有率が低下するので
分散効率も低下する。[0004] EP-A-0378056 discloses a similar dispersing device. In the device of this publication, the basket of the disperser is rotated and the stirring member in the basket is held against rotation. Further, the basket has small holes or slits formed on both upper and lower surfaces to serve as slurry introduction ports. The structure of the disperser in these conventional dispersing apparatuses is such that small holes or slits serving as slurry introduction ports are formed on one or both of the upper and lower surfaces of the basket. However, these small holes or slits need to be small enough to prevent the dispersion medium in the basket from leaking out. Therefore, even if the slurry flows in due to the centrifugal force exerted on the slurry by the rotation of the stirring member and the basket, most of the slurry does not enter the basket, and the upper and lower surfaces of the basket are rotated. Tend to flow along. As a result, the flow rate of the slurry passing through the inside of the basket decreases, and it takes time for dispersion. In addition, in the above patent, since the basket rotates inside the slurry, the dispersion efficiency of the slurry introduced into the basket decreases as the dispersion of the slurry introduced into the basket decreases as the dispersion proceeds. I do.
【０００５】[0005]
【発明が解決しようとする課題】 本発明は、上述した
従来の分散装置における問題点に着目して、スラリーの
導入抵抗が少なく、分散室内での分散媒体により閉塞が
起こり難く、高い分散効果を達成できる分散装置及び分
散方法を提供することを課題とする。SUMMARY OF THE INVENTION The present invention focuses on the problems of the above-described conventional dispersing apparatus, and has a low slurry introduction resistance, is less likely to be blocked by a dispersing medium in a dispersing chamber, and has a high dispersing effect. It is an object to provide a dispersion apparatus and a dispersion method that can be achieved.
【０００６】[0006]
【課題を解決するための手段】 上記課題を解決するた
めの本発明による分散装置は、一端が第１回転駆動軸に
結合され多数の孔を周面に有する中空筒状の分散室と、
該分散室内に配置されて第２回転駆動軸により回転駆動
される攪拌部材と、攪拌部材より半径方向内側において
分散室内にスラリーを導入するスラリー導入手段を備え
る。分散室内には分散媒体が充填され、分散室の外側に
は、該分散室を囲むように回収槽が配置される。そし
て、第１及び第２回転駆動軸の両方を、分散室の周面と
攪拌部材との間に相対的運動を生じるように駆動する駆
動手段が設けられる。本発明の好ましい態様において
は、分散装置は、一端が中空の回転駆動軸に結合され周
面にスクリーン状多孔質の円筒面を有する中空円筒状の
分散室と、該中空の回転駆動軸内を通って分散室に挿入
された第２の回転駆動軸に結合され分散室の長さ方向中
心軸線より半径方向外側の位置において該中心軸線に対
してほぼ平行に延びる複数の攪拌部材と、攪拌部材に対
して半径方向内側において分散室内に配置され周面にス
クリーン状多孔質の円筒面を有するスラリー導入室とを
備える。分散室とスラリー導入室との間には、分散用ビ
ーズが充填される。そして分散室の周面と攪拌部材との
間に相対的運動を生じるように中空の回転駆動軸と第２
の回転駆動軸の両方を駆動する駆動手段が設けられる。
分散室の外側には、該分散室を囲むように回収槽が配置
される。Means for Solving the Problems A dispersion apparatus according to the present invention for solving the above problems has a hollow cylindrical dispersion chamber having one end coupled to a first rotary drive shaft and having a large number of holes on a peripheral surface thereof.
A stirring member disposed in the dispersion chamber and driven to rotate by the second rotary drive shaft; and a slurry introduction unit for introducing slurry into the dispersion chamber radially inside the stirring member. A dispersion medium is filled in the dispersion chamber, and a collection tank is arranged outside the dispersion chamber so as to surround the dispersion chamber. Then, a driving means is provided for driving both the first and second rotary drive shafts so as to cause relative movement between the peripheral surface of the dispersion chamber and the stirring member. In a preferred aspect of the present invention, the dispersion device has a hollow cylindrical dispersion chamber having one end connected to a hollow rotary drive shaft and having a screen-like porous cylindrical surface on a peripheral surface, and the inside of the hollow rotary drive shaft. A plurality of stirring members coupled to the second rotary drive shaft inserted through the dispersion chamber and extending substantially parallel to the central axis at a position radially outward from the longitudinal center axis of the dispersion chamber; And a slurry introduction chamber which is disposed in the dispersion chamber on the radial inner side and has a screen-like porous cylindrical surface on the peripheral surface. The beads for dispersion are filled between the dispersion chamber and the slurry introduction chamber. A hollow rotary drive shaft and a second rotating drive shaft are provided so as to cause relative movement between the peripheral surface of the dispersion chamber and the stirring member.
Drive means for driving both of the rotary drive shafts.
A collection tank is arranged outside the dispersion chamber so as to surround the dispersion chamber.
【０００７】さらに、本発明による分散方法は、多孔質
の外周面を有する回転駆動可能な筒状の分散室内にビー
ズ状の分散媒体を充填し、該分散室内に回転駆動可能な
攪拌部材を備える分散装置を使用する。そして、攪拌部
材に対して半径方向内方の位置において分散室内にスラ
リーを導入しながら分散室の外周面と攪拌部材との間に
相対的な運動を生じるように、該分散室と該攪拌部材の
両方を回転駆動し、この回転による遠心力の作用でスラ
リーを分散室の半径方向内側から外周面に向けて移動さ
せる。この移動速度は遠心力に比例するのでスラリー流
量は、分散室の回転速度によって定まり、スラリー導入
室に送り込まれたスラリー１００％を分散室に送り込む
速度にする導入されたスラリーは、攪拌部材の攪拌作用
を受ける分散媒体により与えられる剪断力でスラリー内
の固形粒子の分散を行う。分散速度は、分散室と攪拌部
材の相対速度によって定まるので、攪拌部材の回転数は
最良の分散速度が得られる速度を選択する。分散された
スラリーは分散室の外周面の孔を通して排出する。Further, in the dispersion method according to the present invention, a bead-shaped dispersion medium is filled in a rotatable cylindrical dispersion chamber having a porous outer peripheral surface, and a rotatable stirring member is provided in the dispersion chamber. Use a dispersing device. The dispersion chamber and the stirring member are moved so that relative movement occurs between the outer peripheral surface of the dispersion chamber and the stirring member while introducing the slurry into the dispersion chamber at a position radially inward with respect to the stirring member. Are rotationally driven, and the slurry is moved from the radial inside to the outer peripheral surface of the dispersion chamber by the action of centrifugal force due to this rotation. Since this moving speed is proportional to the centrifugal force, the slurry flow rate is determined by the rotation speed of the dispersion chamber, and the introduced slurry is adjusted to a speed at which 100% of the slurry sent to the slurry introduction chamber is sent to the dispersion chamber. The dispersion of the solid particles in the slurry is effected by the shear force provided by the dispersing medium under action. Since the dispersion speed is determined by the relative speed between the dispersion chamber and the stirring member, the speed at which the best dispersion speed is obtained is selected for the rotation speed of the stirring member. The dispersed slurry is discharged through holes on the outer peripheral surface of the dispersion chamber.
【０００８】本発明の分散装置及び分散方法において
は、スラリーは、分散室の半径方向内方の位置で該分散
室に導入される。分散媒体は、分散室の回転によって遠
心力を与えられ、分散室の周壁に押し付けられるが、分
散室の周壁に対して相対的運動をする攪拌部材のため
に、周方向に層状になって流動する。スラリーは、この
ように流動している分散媒体の層を内側から外側に通過
しながら、分散媒体間に生じる速度差に基づく剪断力の
作用で分散され、分散室の周面の孔又はスリットから外
に流出する。分散室の周面の孔又はスリットは、分散媒
体の直径の1/2 ないし1/ 4程度とすることが好ましく、
1/3 程度が一層好ましい。スラリーは、分散室の周面の
孔又はスリットにより分散媒体から分離されて分散室の
外に排出される。この本発明の分散装置及び分散方法
は、従来のものに比べて極めて高い分散効果を短時間で
達成できることが確認された。In the dispersing apparatus and the dispersing method of the present invention, the slurry is introduced into the dispersion chamber at a position radially inside the dispersion chamber. The dispersion medium is given a centrifugal force by the rotation of the dispersion chamber and pressed against the peripheral wall of the dispersion chamber, but flows in a layered manner in the circumferential direction due to the stirring member that moves relative to the peripheral wall of the dispersion chamber. I do. The slurry is dispersed by the action of the shearing force based on the speed difference generated between the dispersion media while passing from the inside to the outside of the layer of the dispersion medium flowing in such a manner, and from the holes or slits on the peripheral surface of the dispersion chamber. Spill out. The hole or slit on the peripheral surface of the dispersion chamber is preferably about 1/2 to 1/4 of the diameter of the dispersion medium,
About 1/3 is more preferable. The slurry is separated from the dispersion medium by holes or slits on the peripheral surface of the dispersion chamber and discharged out of the dispersion chamber. It was confirmed that the dispersing apparatus and the dispersing method of the present invention can achieve an extremely high dispersing effect in a short time as compared with the conventional apparatus.
【０００９】[0009]
【実施例】 以下、本発明の実施例を図に付いて説明す
る。先ず図１を参照すると、分散室１は、一対の円板状
の端板１ａ、１ｂと、該端板間に渡して配置された多数
の小孔を有する外筒１ｃを有する。分散室１の外側に
は、該分散室１を囲むように回収槽２が配置され、該回
収槽２の下部にはスラリー取出口２ａが形成されてい
る。中空の第１回転駆動軸３が設けられ、その一端が回
収槽２の壁を通って該回収槽２内に入り、分散室１の端
板１ｂに結合されている。第１回転駆動軸３の他端には
プーリ４が固定され、ベルト５を介して図示しないモー
ター等の駆動手段に結合される。分散室１の内部には、
多数の小孔を有する円筒状周面６ａを備えたスラリー導
入室６が形成され、このスラリー導入室６には、分散室
１の端板１ａに形成した開口６ｂを通るスラリー導入管
７からスラリーが供給される。分散室１内には、攪拌板
８が配置され、この攪拌板８に、複数の棒状の攪拌部材
８ａが固定されている。攪拌部材８ａは、スラリー導入
室６の周面６ａより半径方向外側の位置において、分散
室１の円筒の中心軸に対してほぼ平行に延びるように配
置される。攪拌板８には第２回転駆動軸９の一端が固定
される。該第２回転駆動軸９は、中空の第１回転駆動軸
３の内部を通って延び、他端は駆動モーター１０に結合
されている。分散室１の内部でスラリー導入室６の外側
の部分には、ガラスビーズ等の分散媒体１１が充填され
る。Embodiments of the present invention will be described below with reference to the drawings. First, referring to FIG. 1, the dispersion chamber 1 has a pair of disk-shaped end plates 1a and 1b, and an outer cylinder 1c having a large number of small holes arranged between the end plates. A collection tank 2 is arranged outside the dispersion chamber 1 so as to surround the dispersion chamber 1, and a slurry outlet 2 a is formed below the collection tank 2. A hollow first rotary drive shaft 3 is provided, one end of which enters the collection tank 2 through the wall of the collection tank 2 and is connected to the end plate 1 b of the dispersion chamber 1. A pulley 4 is fixed to the other end of the first rotation drive shaft 3, and is connected to a drive unit such as a motor (not shown) via a belt 5. Inside the dispersion chamber 1,
A slurry introduction chamber 6 having a cylindrical peripheral surface 6a having a large number of small holes is formed. The slurry introduction chamber 6 has a slurry introduced from a slurry introduction pipe 7 passing through an opening 6b formed in an end plate 1a of the dispersion chamber 1. Is supplied. A stirring plate 8 is disposed in the dispersion chamber 1, and a plurality of rod-shaped stirring members 8 a are fixed to the stirring plate 8. The stirring member 8 a is disposed at a position radially outside the peripheral surface 6 a of the slurry introduction chamber 6 so as to extend substantially parallel to the central axis of the cylinder of the dispersion chamber 1. One end of a second rotary drive shaft 9 is fixed to the stirring plate 8. The second rotary drive shaft 9 extends through the inside of the hollow first rotary drive shaft 3, and the other end is connected to a drive motor 10. A portion outside the slurry introduction chamber 6 inside the dispersion chamber 1 is filled with a dispersion medium 11 such as glass beads.
【００１０】作動においては、第１回転駆動軸３と第２
回転駆動軸９は、それぞれのモーターにより互いに異な
る回転速度で回転駆動される。すなわち、分散室１の外
周面すなわち外筒１ｃの回転周速度と、攪拌部材８ａの
周方向の速度とが異なり、相互に相対的な運動を生じる
ように第１回転駆動軸３と第２回転駆動軸９を駆動す
る。同時に、スラリー導入管７からスラリーを導入室６
内に導入する。分散室１内の分散媒体１１は、攪拌部材
８ａにより与えられる回転作用に基づく遠心力の影響
で、分散室１内において外筒１ｃの壁面に押し付けら
れ、該外筒１ｃと攪拌部材８ｃの間の速度差により層状
になって周方向に流動する。導入室６に導入されたスラ
リーは、該導入室６の回転により回転習性を与えられ、
その回転によって生じる遠心力の影響で周面６ａの小孔
を通り分散室１内に入る。そして、上述したように層状
になって流動する分散媒体の間を通り、外筒１ｃの小孔
から回収槽２内に排出される。この間に、スラリーは、
相対的に運動する分散媒体１１により与えられる剪断力
の作用で分散作用を受ける。In operation, the first rotary drive shaft 3 and the second
The rotary drive shaft 9 is rotationally driven at different rotational speeds by the respective motors. In other words, the outer peripheral surface of the dispersion chamber 1, that is, the rotational peripheral speed of the outer cylinder 1c is different from the peripheral speed of the stirring member 8a, and the first rotary drive shaft 3 and the second rotary shaft are moved so as to cause relative movement. The drive shaft 9 is driven. At the same time, the slurry is introduced from the slurry introduction pipe 7 into the introduction chamber 6.
Introduce within. The dispersion medium 11 in the dispersion chamber 1 is pressed against the wall surface of the outer cylinder 1c in the dispersion chamber 1 under the influence of centrifugal force based on the rotating action given by the stirring member 8a, and the space between the outer cylinder 1c and the stirring member 8c is formed. And flows in the circumferential direction due to the speed difference. The slurry introduced into the introduction chamber 6 is given a rotation behavior by the rotation of the introduction chamber 6,
Under the influence of the centrifugal force generated by the rotation, the liquid enters the dispersion chamber 1 through the small holes in the peripheral surface 6a. Then, as described above, the liquid is discharged into the collection tank 2 through the small holes of the outer cylinder 1c, passing between the dispersion media flowing in a layered manner. During this time, the slurry
The dispersing action is exerted by the action of the shear force provided by the dispersing medium 11 that moves relatively.
【００１１】本発明による効果を確認するための実施例
として、分散室１の外径が165 mm、軸方向長さが80mm、
スラリー導入室６の直径が65mm、奥行きが40mmの分散装
置を準備し、平均粒子径23μｍのCaCo3 粉末を含む固形
分30％のスラリー20リットルを調整して分散を行なった。こ
こで、分散室１の回転速度を365rpmとし、攪拌部材８ａ
の回転速度を1075rpm とした。ガラスビーズは直径２mm
で、充填率は85％であった。この運転条件では、分散室
１と攪拌部材８ａの相対速度は、9、75m/sec となる。こ
の実施例における分散時間と平均粒子径の関係を図２に
線ａにより示す。比較例として、軸方向にスラリーを流
す従来の横置き型分散装置を使用して分散を行なった。
使用した従来の装置は、分散室容量が1.1リットル で、スラ
リーの流量は0.37リットル/minで、実施例におけると同様に
調整したスラリー20リットルを使用した。この比較例におけ
る分散時間と平均粒子径の関係を図２に線ｂにより示
す。As an example for confirming the effect of the present invention, the outer diameter of the dispersion chamber 1 is 165 mm, the axial length is 80 mm,
A dispersing apparatus having a diameter of the slurry introduction chamber 6 of 65 mm and a depth of 40 mm was prepared, and 20 liters of a 30% solid content slurry containing CaCo 3 powder having an average particle diameter of 23 μm was adjusted and dispersed. Here, the rotation speed of the dispersion chamber 1 is set to 365 rpm, and the stirring member 8a
Was set to 1075 rpm. Glass beads are 2mm in diameter
And the filling factor was 85%. Under these operating conditions, the relative speed between the dispersion chamber 1 and the stirring member 8a is 9, 75 m / sec. The relationship between the dispersion time and the average particle size in this example is shown by the line a in FIG. As a comparative example, dispersion was performed using a conventional horizontal dispersing apparatus in which the slurry flows in the axial direction.
The conventional apparatus used had a dispersion chamber capacity of 1.1 liters, a slurry flow rate of 0.37 liters / min, and used 20 liters of slurry adjusted as in the examples. The relationship between the dispersion time and the average particle size in this comparative example is shown by the line b in FIG.
【００１２】図２から明らかなように、本発明の分散装
置は、従来の装置に比べて際立って高い分散効果を示
す。図３は、本発明の分散装置において、平均分散径３
μｍを達成するのに要する分散時間と、分散室と攪拌部
材の間の相対速度の関係を示すものである。図から明ら
かなように、相対速度が高いほど、分散時間は短くな
る。図４は、相対速度をパラメーターとして、分散時間
と平均分散径の関係を示すものである。この図によって
も、相対速度の顕著な効果が認められる。図５は、図１
に示す分散装置を使用して循環方式で分散を行なうシス
テムを示す。図１の装置における回収槽２のスラリー取
出口２ａからのスラリーを受けるようにスラリータンク
１２が配置され、該スラリータンク１２の下部に接続さ
れる導管１３が、ポンプ１４及びバルブ１５を介してス
ラリー導入管７に接続される。スラリータンク１２内に
は、必要に応じてスラリー攪拌機１６が設けられ、タン
ク１２内のスラリーを攪拌する。この構成により、スラ
リーは分散装置に循環されて所要程度の分散が達成され
る。As is apparent from FIG. 2, the dispersion apparatus of the present invention shows a remarkably high dispersion effect as compared with the conventional apparatus. FIG. 3 shows an average dispersion diameter of 3 in the dispersion apparatus of the present invention.
It shows the relationship between the dispersion time required to achieve μm and the relative speed between the dispersion chamber and the stirring member. As is clear from the figure, the higher the relative speed, the shorter the dispersion time. FIG. 4 shows the relationship between the dispersion time and the average dispersion diameter using the relative speed as a parameter. This figure also shows a remarkable effect of the relative speed. FIG.
1 shows a system for performing dispersion by a circulation system using the dispersion apparatus shown in FIG. A slurry tank 12 is arranged to receive slurry from a slurry outlet 2 a of the recovery tank 2 in the apparatus of FIG. 1, and a conduit 13 connected to a lower portion of the slurry tank 12 is connected to a slurry 14 via a pump 14 and a valve 15. Connected to introduction pipe 7. A slurry stirrer 16 is provided in the slurry tank 12 as needed to stir the slurry in the tank 12. With this configuration, the slurry is circulated through the dispersing device to achieve a required degree of dispersion.
【００１３】図６は、本発明を縦型の装置に実施した例
を示す断面図である。図において、図１の構造に対応す
る部分は同一の符号を付して示し、詳細な説明は省略す
る。この縦型の分散装置においても、横型と同様に本発
明の効果を達成することができる。FIG. 6 is a sectional view showing an embodiment in which the present invention is applied to a vertical device. In the figure, portions corresponding to the structure of FIG. 1 are denoted by the same reference numerals, and detailed description thereof will be omitted. The effects of the present invention can be achieved in this vertical dispersing device as well as in the horizontal dispersing device.
【図１】 本発明の一実施例を示す分散装置の断面図で
ある。FIG. 1 is a cross-sectional view of a dispersion apparatus showing one embodiment of the present invention.
【図２】 本発明の分散装置を使用した場合の分散時間
と平均粒子径の関係を従来の分散機の場合との対比で示
す図表である。FIG. 2 is a table showing the relationship between the dispersion time and the average particle size when the dispersion apparatus of the present invention is used, in comparison with the case of a conventional dispersion machine.
【図３】 本発明の分散装置における分散室周面と攪拌
部材の間の相対速度と平均分散径３μｍを達成するのに
必要な分散時間の関係を示す図表である。FIG. 3 is a chart showing a relationship between a relative speed between a peripheral surface of a dispersion chamber and a stirring member and a dispersion time required to achieve an average dispersion diameter of 3 μm in the dispersion apparatus of the present invention.
【図４】 本発明の分散装置における分散室周面と攪拌
部材の間の相対速度が分散時間と平均分散径との関係に
及ぼす影響を示す図表である。FIG. 4 is a table showing the effect of the relative speed between the peripheral surface of the dispersion chamber and the stirring member in the dispersion apparatus of the present invention on the relationship between the dispersion time and the average dispersion diameter.
【図５】 本発明の図１に示す実施例の分散装置の一使
用例を示す側面図である。FIG. 5 is a side view showing an example of use of the dispersion apparatus of the embodiment shown in FIG. 1 of the present invention.
【図６】 本発明を縦型の分散装置に実施した例を示す
断面図である。FIG. 6 is a sectional view showing an example in which the present invention is applied to a vertical dispersion device.
１・・・分散室、１ｃ・・・外周壁、２・・・回収槽、
３・・・第１回転駆動軸、６・・・スラリー導入室、７
・・・スラリー導入管、８ａ・・・攪拌部材、９・・・
第１回転駆動軸、１０・・・モーター、１１・・・分散
媒体、DESCRIPTION OF SYMBOLS 1 ... Dispersion chamber, 1c ... Outer peripheral wall, 2 ... Collection tank,
3 ... first rotation drive shaft, 6 ... slurry introduction chamber, 7
... Slurry introduction pipe, 8a ... Stirring member, 9 ...
1st rotation drive shaft, 10 ... motor, 11 ... dispersion medium,
Claims (3)
孔を周面に有する中空筒状の分散室と、前記分散室内に
配置されて第２回転駆動軸により回転駆動される攪拌部
材と、前記攪拌部材より半径方向内側において前記分散
室内にスラリーを導入するスラリー導入手段と、前記分
散室内に充填された分散媒体と、前記分散室の外側にお
いて該分散室を囲むように配置された回収槽と、前記第
１及び第２回転駆動軸の両方を前記分散室の前記周面と
前記攪拌部材との間に相対的運動を生じるように駆動す
る駆動手段と、を備えることを特徴とする分散装置。A hollow cylindrical dispersion chamber having one end coupled to a first rotary drive shaft and having a large number of holes on its peripheral surface, and a stirring member disposed in the dispersion chamber and driven to rotate by a second rotary drive shaft. A slurry introduction unit for introducing slurry into the dispersion chamber radially inside the stirring member; a dispersion medium filled in the dispersion chamber; and a dispersion medium disposed outside the dispersion chamber so as to surround the dispersion chamber. A recovery tank, and driving means for driving both the first and second rotary drive shafts so as to cause relative movement between the peripheral surface of the dispersion chamber and the stirring member. Dispersion equipment.
にスクリーン状多孔質の円筒面を有する中空円筒状の分
散室と、前記中空の回転駆動軸内を通って前記分散室に
挿入された第２の回転駆動軸に結合され前記分散室の長
さ方向中心軸線より半径方向外側の位置において該中心
軸線に対してほぼ平行に延びる複数の攪拌部材と、前記
攪拌部材に対して半径方向内側において前記分散室内に
配置され周面にスクリーン状多孔質の円筒面を有するス
ラリー導入室と、前記分散室と前記スラリー導入室との
間において前記分散室内に充填された分散用ビーズと、
前記分散室の周面と前記攪拌部材との間に相対的運動を
生じるように前記中空の回転駆動軸と前記第２の回転駆
動軸の両方を駆動する駆動手段と、前記分散室の外側に
おいて該分散室を囲むように配置された回収槽と、を備
えることを特徴とする分散装置。2. A hollow cylindrical dispersion chamber having one end coupled to a hollow rotary drive shaft and having a screen-like porous cylindrical surface on a peripheral surface, and inserted into the dispersion chamber through the hollow rotary drive shaft. A plurality of agitating members coupled to the second rotating drive shaft and extending substantially parallel to the central axis at a position radially outside the longitudinal central axis of the dispersion chamber; A slurry introduction chamber having a screen-like porous cylindrical surface on the peripheral surface arranged in the dispersion chamber on the inner side in the direction, and beads for dispersion filled in the dispersion chamber between the dispersion chamber and the slurry introduction chamber,
Driving means for driving both the hollow rotary drive shaft and the second rotary drive shaft so as to cause relative movement between the peripheral surface of the dispersion chamber and the stirring member; A collection tank disposed so as to surround the dispersion chamber.
筒状の分散室内にビーズ状の分散媒体を充填し、該分散
室内に回転駆動可能な攪拌部材を備える分散装置を使用
し、前記攪拌部材に対して半径方向内方の位置において
前記分散室内にスラリーを導入しながら前記分散室の外
周面と前記攪拌部材との間に相対的な運動を生じるよう
に、該分散室と該攪拌部材の両方を回転駆動し、この回
転による遠心力の作用でスラリーを分散室の半径方向内
側から外周面に向けて移動させて、前記攪拌部材の攪拌
作用を受ける分散媒体により与えられる剪断力でスラリ
ー内の固形粒子の分散を行い、分散されたスラリーを前
記分散室の外周面の孔を通して排出する段階からなるこ
とを特徴とする分散方法。3. A dispersing device having a bead-shaped dispersion medium filled in a rotatable cylindrical dispersion chamber having a porous outer peripheral surface and a rotatable stirring member in the dispersion chamber is used. The dispersion chamber and the agitator are moved so that relative movement occurs between the outer peripheral surface of the dispersion chamber and the agitator while introducing the slurry into the dispersion chamber at a position radially inward with respect to the agitator. Both the members are rotationally driven, and the slurry is moved from the radially inner side of the dispersion chamber toward the outer peripheral surface by the action of centrifugal force due to this rotation, and the shear force given by the dispersion medium subjected to the stirring action of the stirring member is used. Dispersing the solid particles in the slurry and discharging the dispersed slurry through holes in the outer peripheral surface of the dispersion chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17097598A JP2000000453A (en) | 1998-06-18 | 1998-06-18 | Dispersion apparatus and dispersion method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17097598A JP2000000453A (en) | 1998-06-18 | 1998-06-18 | Dispersion apparatus and dispersion method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000000453A true JP2000000453A (en) | 2000-01-07 |
Family
ID=15914832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17097598A Abandoned JP2000000453A (en) | 1998-06-18 | 1998-06-18 | Dispersion apparatus and dispersion method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000000453A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001190974A (en) * | 2000-01-07 | 2001-07-17 | Masumi Kusunoki | Cracking filter device for powder dispersing machine |
| KR100649581B1 (en) | 2003-12-29 | 2006-11-28 | 삼성전기주식회사 | A Method of Deagglomeration of Ceramic Powder, Deagglomeration Mill Used Therefor and A Method for Producing High Dispersed Slurry Using the Deagglomerated Powder |
| CN1304118C (en) * | 2004-04-28 | 2007-03-14 | 兰州理工大学 | Apparatus and method for pulverizing rhizome type materials for traditional Chinese medicinal materials |
| JP2008183518A (en) * | 2007-01-30 | 2008-08-14 | Oliver Y Batlle Sa | Vertical agitating grinder |
| CN105107405A (en) * | 2015-09-18 | 2015-12-02 | 湖州南浔双林振森实木加工厂 | Coating production device high in applicability |
| CN115400669A (en) * | 2022-10-13 | 2022-11-29 | 广东顺德菲尔特润滑科技有限公司 | Super-microparticle-based lubricating oil timely shot blasting type production equipment |
-
1998
- 1998-06-18 JP JP17097598A patent/JP2000000453A/en not_active Abandoned
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001190974A (en) * | 2000-01-07 | 2001-07-17 | Masumi Kusunoki | Cracking filter device for powder dispersing machine |
| KR100649581B1 (en) | 2003-12-29 | 2006-11-28 | 삼성전기주식회사 | A Method of Deagglomeration of Ceramic Powder, Deagglomeration Mill Used Therefor and A Method for Producing High Dispersed Slurry Using the Deagglomerated Powder |
| CN1304118C (en) * | 2004-04-28 | 2007-03-14 | 兰州理工大学 | Apparatus and method for pulverizing rhizome type materials for traditional Chinese medicinal materials |
| JP2008183518A (en) * | 2007-01-30 | 2008-08-14 | Oliver Y Batlle Sa | Vertical agitating grinder |
| JP4583387B2 (en) * | 2007-01-30 | 2010-11-17 | オリバー イー バトレ ソシエダッド アノニマ | Vertical stirring pulverizer |
| CN105107405A (en) * | 2015-09-18 | 2015-12-02 | 湖州南浔双林振森实木加工厂 | Coating production device high in applicability |
| CN115400669A (en) * | 2022-10-13 | 2022-11-29 | 广东顺德菲尔特润滑科技有限公司 | Super-microparticle-based lubricating oil timely shot blasting type production equipment |
| CN115400669B (en) * | 2022-10-13 | 2024-01-19 | 广东顺德菲尔特润滑科技有限公司 | Lubricating oil timely shot blasting type production equipment based on ultrafine particles |
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