JP6726003B2

JP6726003B2 - Slurry kneading/dispersing device

Info

Publication number: JP6726003B2
Application number: JP2016047112A
Authority: JP
Inventors: 順一長嶋; 嘉浩金丸
Original assignee: Inoue Mfg Inc
Current assignee: Inoue Mfg Inc
Priority date: 2016-03-10
Filing date: 2016-03-10
Publication date: 2020-07-22
Anticipated expiration: 2036-03-10
Also published as: JP2017159259A

Description

本発明は、化学、医薬、電子、食品、飼料その他の各種分野で使用されている固体/液体系処理材料であるスラリーを混練・分散処理する装置において、スラリーを供給するための供給ポンプを外部に設けずに処理槽に循環させて連続的に処理できるようにしたスラリーの混練・分散装置に関するものである。 INDUSTRIAL APPLICABILITY The present invention relates to an apparatus for kneading/dispersing a slurry, which is a solid/liquid type processing material used in various fields such as chemistry, medicine, electronics, food, feed, etc., and a supply pump for supplying the slurry to the outside. The present invention relates to a slurry kneading/dispersing device which is circulated in a processing tank and can be continuously processed without being provided in the above.

従来、固体/液体系の処理材料であるスラリーを混練・分散処理する場合、連続式に行うときは、処理槽の外部に供給ポンプを設けて処理材料を処理槽内に送り込むように構成することが多い。そのため、処理材料の品種替え等のときには、処理槽の洗浄とは別に供給ポンプの洗浄作業が必要になる。しかし、洗浄液として有機溶剤を使用しなければならないときは、作業環境的に好ましくなく、供給ポンプの完全洗浄は困難であった。また、供給ポンプにより原材料が破壊するおそれもあった。 Conventionally, when kneading/dispersing a slurry which is a solid/liquid type processing material, when performing a continuous process, a supply pump is provided outside the processing tank so that the processing material is fed into the processing tank. There are many. Therefore, when changing the type of processing material, it is necessary to clean the supply pump separately from the cleaning of the processing tank. However, when an organic solvent has to be used as the cleaning liquid, it is not preferable in terms of working environment and it is difficult to completely clean the supply pump. In addition, the feed pump may destroy the raw materials.

分散媒体(ビーズ)を用いて分散処理を行う媒体分散装置では、処理槽の外部に供給ポンプを設けずに連続式に処理できるようにした装置が知られている(例えば特許文献１参照)。この装置は、処理槽内に複数の円板を近接して設け、この円板を回転することによりディスクフローポンプの要領で吸引作用を発揮させて吸引口から処理槽内に処理材料を吸引し、分散媒体とともに円板で撹拌して分散処理する。そして、処理後の処理材料は、分散媒体を処理材料から分離する媒体分離装置を介して吐出口から吐出され、再び上記のように処理槽の吸引口から吸引されて循環処理することにより連続式に分散処理するように構成されている。この装置によれば、分散媒体を使用することにより効率よく分散処理することができるが、媒体分離装置部分や配管での付着ロス分が多くなり、高価な処理材料では数百ミリリットル程度の少量処理は困難であるから、簡単な確認テストに使用するというような使用態様はむずかしい。その上、分散機能が分散媒体のビーズ径や材質により変化し、分散媒体の磨耗や破損によりコンタミを生じたり、分散媒体による剪断、衝撃作用によって処理材料中の固体(粉体)が粒子破壊することもあった。 As a medium dispersion apparatus that performs dispersion processing using a dispersion medium (beads), there is known an apparatus that can perform continuous processing without providing a supply pump outside the processing tank (see, for example, Patent Document 1). This device has a plurality of discs arranged close to each other in the treatment tank, and by rotating these discs, the suction action is exerted in the manner of a disc flow pump to suck the treatment material from the suction port into the treatment tank. , And the dispersion medium is agitated with a disc for dispersion treatment. Then, the treated material after treatment is discharged from the discharge port through the medium separation device that separates the dispersion medium from the treated material, and is again sucked from the suction port of the treatment tank as described above and is circulated for continuous processing. It is configured to perform distributed processing. According to this device, it is possible to efficiently perform dispersion processing by using a dispersion medium, but the amount of adhesion loss in the medium separation device part and piping increases, and a small amount of processing of several hundred milliliters is required for expensive processing materials. Since it is difficult to use, it is difficult to use it for a simple confirmation test. In addition, the dispersion function changes depending on the bead diameter and material of the dispersion medium, causing contamination due to wear and damage of the dispersion medium, or the solid (powder) in the processing material is broken by the shearing and impact action of the dispersion medium. There were things.

液体/液体系の処理材料を混合する装置では、ケーシング内に設けた混合要素の回動中心軸に開口部を有する中空部を設け、ケーシング内に吸い込んだ処理材料を、開口部を通して中空部に導き、その後中空部から連通流路を通して混合要素の外周に導いて混合処理する方法、装置が提案されている(例えば特許文献２参照)。しかし、この装置で処理する処理材料は、液/液系の処理材料、すなわち粉体が部分凝集した凝集体のように解砕しにくい材料を含まないエマルジョンが対象であり、貫通孔を備えた複数の円板を重ねて中空部を有する混合要素を形成し中空部に入った処理材料を外周に流出させてディスクフローポンプの応用で循環する構成である。したがって、固体/液体系の処理材料であるスラリーのように、解砕しにくい粉体の凝集体を含む処理材料の場合には、積層した円板間を通して中空部から外周に流出させるだけでは、十分に解砕することができず、スラリーの混練・分散処理に適応することはむずかしい。 In a device for mixing liquid/liquid type processing materials, a hollow part having an opening is provided in the central axis of rotation of the mixing element provided in the casing, and the processing material sucked into the casing is passed through the opening to the hollow part. There has been proposed a method and apparatus for guiding and then conducting a mixing process by guiding the mixture from the hollow portion to the outer periphery of the mixing element through a communication channel (see, for example, Patent Document 2). However, the processing material to be processed by this device is a liquid/liquid type processing material, that is, an emulsion that does not contain a material that is difficult to crush, such as an aggregate in which powder is partially aggregated. This is a configuration in which a plurality of discs are stacked to form a mixing element having a hollow portion, and the processing material in the hollow portion is caused to flow out to the outer periphery and circulate by application of a disc flow pump. Therefore, in the case of a processing material containing agglomerates of powder that are difficult to disintegrate, such as a slurry that is a solid/liquid type processing material, simply by flowing out from the hollow portion to the outer periphery through the laminated discs, Since it cannot be sufficiently crushed, it is difficult to apply it to the kneading/dispersing treatment of the slurry.

特開２００１−１２０９７６公報（特許請求の範囲、図１）Japanese Patent Laid-Open No. 2001-120976 (claims, FIG. 1) 特開２０１３−１６３１８４公報（特許請求の範囲、図１、図２）JP, 2013-163184, A (claim, Drawing 1, Drawing 2)

本発明の解決課題は、固体/液体系の混合物であるスラリーを、処理槽の外部に供給ポンプを設けることなく循環させて連続式に混練、分散できるようにしたスラリーの混練・分散装置を提供することである。 The problem to be solved by the present invention is to provide a slurry kneading/dispersing device capable of continuously kneading and dispersing a slurry, which is a solid/liquid mixture, without providing a supply pump outside the processing tank. It is to be.

本発明によれば、固体/液体系処理材料の供給口と吐出口を有する処理槽と、該処理槽の内壁との間に環状の微少間隙を存して回転可能に設けられた回転体と、該回転体と上記供給口の間に設けられたポンプ室を具備し、該ポンプ室には上記回転体の端面に固定され上記微少間隙に近接する外径を有し回転により負圧作用を生じる吸引円板が設けられ、該吸引円板で処理材料を処理槽内に吸引して上記微少間隙で混練・分散し、上記吐出口から吐出することを特徴とするスラリーの混練・分散装置が提供され、上記解題が解決される。 According to the present invention, a processing tank having a supply port and a discharge port for a solid/liquid type processing material, and a rotating body rotatably provided with an annular minute gap between the inner wall of the processing tank and the processing tank. A pump chamber provided between the rotating body and the supply port, the pump chamber having an outer diameter fixed to an end surface of the rotating body and being close to the minute gap, thereby exerting a negative pressure action by rotation. The resulting suction disc is provided, and the treatment material is sucked into the treatment tank by the suction disc, kneaded and dispersed in the minute gap, and discharged from the discharge port. Provided and the above problem solved.

また、本発明によれば、上記吸引円板には中央のボス部から半径方向に延びる羽根状の***部が突設され、回転した際、処理材料が当接する該***部の側面は、好ましくはボス部の外径より約４５度の角度で傾斜し、ボス部から外周に向かって幅狭に形成されている上記スラリーの混練・分散装置が提供され、上記解題が解決される。 Further, according to the present invention, the suction disk is provided with a blade-shaped ridge portion extending in a radial direction from a central boss portion, and a side surface of the ridge portion with which the processing material abuts when rotated is preferable. Provides a kneading/dispersing device for the slurry, which is inclined at an angle of about 45 degrees from the outer diameter of the boss portion and is formed to have a narrow width from the boss portion toward the outer periphery, thereby solving the above problem.

本発明は上記のように構成され、処理槽は固体/液体系処理材料の供給口と吐出口を有し、該処理槽の内部には、内壁との間に環状の微少間隙を存して回転体が回転可能に設けられ、該回転体と上記供給口の間にポンプ室が設けられている。このポンプ室に、上記回転体の端面に固定され上記微少間隙に近接する外径を有し回転により負圧作用を生じる吸引円板を設けたので、吸引円板の回転により生じた負圧作用で供給口から処理槽内に処理材料が吸引され、この処理材料は、吸引円板の外周から吐出されて上記微少間隙に入り込み、該微少間隙内で回転体の外面と処理槽の内壁により混練・分散され、上記吐出口から吐出する。したがって、スラリーのように凝集力の大きい粉体も連続式に確実に解砕され、効率よく混練・分散処理することができる。また、色変えその他処理材料の品種変更等のときは、従来のように処理槽とは別に設けた供給ポンプ部分が存在しないので、洗浄作業の必要がなく、作業性が良くなり、連続化のための配管も短縮することができる。 The present invention is configured as described above, the treatment tank has a supply port and a discharge port for the solid/liquid type processing material, and inside the treatment tank, there is an annular minute gap between the inner wall and the inner wall. A rotating body is rotatably provided, and a pump chamber is provided between the rotating body and the supply port. Since this pump chamber is provided with a suction disk fixed to the end face of the rotating body and having an outer diameter close to the minute gap to generate a negative pressure effect by rotation, a negative pressure effect generated by rotation of the suction disk is provided. The processing material is sucked from the supply port into the processing tank, and the processing material is discharged from the outer circumference of the suction disk and enters the minute gap, where it is kneaded by the outer surface of the rotor and the inner wall of the processing tank. -Dispersed and discharged from the discharge port. Therefore, even a powder having a large cohesive force such as a slurry can be reliably crushed in a continuous manner and can be efficiently kneaded and dispersed. Also, when changing the color or changing the type of processing material, there is no separate supply pump part provided separately from the processing tank as in the past, so there is no need for cleaning work, workability is improved, and continuous operation is possible. The piping for can also be shortened.

本発明において、上記吸引円板に、中央のボス部から半径方向に延びる羽根状の***部を突設し、回転した際、処理材料が当接する該***部の側面を、好ましくはボス部の外径より約４５度の角度で傾斜させ、ボス部から外周に向かって幅狭に形成すると、この側面に当たったスラリー中の粗大粒子は吸引円板の回転方向(入力方向)に飛ばされるものと、半径方向(出力方向)に飛ばされるものがほぼ等しくなり、吸収円板を安定状態で運転することが可能となる。また、***部を先端に向かって幅狭に形成すると、隣接する***部間の凹部空間は、円周方向の幅が中心部から外周部に向かって幅広となり、この凹部空間に入り込んだ処理材料は、上記***部に沿って拡散するように吐出され、吐出量が多くなってポンプ作用が十分に発揮され、外周に運ばれた処理材料は、回転体と処理槽の内壁間の環状の微少間隙に積極的に入り込み、確実に混練・分散処理をすることができる。 In the present invention, the suction disk is provided with a blade-shaped ridge portion extending in a radial direction from a central boss portion, and the side surface of the ridge portion with which the processing material abuts when rotated is preferably the boss portion. When it is inclined at an angle of about 45 degrees from the outer diameter and formed narrower from the boss toward the outer circumference, coarse particles in the slurry hitting this side surface are blown in the rotation direction (input direction) of the suction disk. Then, what is blown in the radial direction (output direction) becomes almost equal, and it becomes possible to operate the absorption disk in a stable state. Further, when the ridges are formed narrower toward the tip, the recessed space between the adjacent ridges becomes wider in the circumferential direction from the central portion toward the outer peripheral portion, and the processing material that has entered this recessed space. Is discharged so as to diffuse along the raised portion, the discharge amount is increased and the pumping action is sufficiently exerted, and the processing material carried to the outer periphery is an annular minute particle between the rotating body and the inner wall of the processing tank. It is possible to positively enter the gap and surely perform kneading/dispersion processing.

本発明の一実施例を示し、処理槽部分を断面して示す説明図。An explanatory view showing an example of the present invention and showing a processing tank part in section. 回転体部分の説明図。Explanatory drawing of a rotary body part. 吸引円板の一実施例を示す正面図。The front view which shows one Example of a suction disc. 吸引円板の断面図。Sectional drawing of a suction disk. ***部の一部を断面した説明図。Explanatory drawing which crossed a part of raised part. 吸引円板の一実施例を示す斜視図。The perspective view which shows one Example of a suction disc. ***部側面のボス部に対する傾斜角度による相違を示し、(Ａ)は４５度傾斜させたとき、(Ｂ)は３０度傾斜させたとき、(Ｃ)は６０度傾斜させたときの各説明図。The difference in inclination angle with respect to the boss portion on the side surface of the ridge is shown. (A) is a 45-degree inclination, (B) is a 30-degree inclination, and (C) is a 60-degree inclination. .. 他の実施例を示し、処理槽を外した回転体部分の斜視図。The perspective view of the rotary body part which showed another Example and removed the processing tank.

本発明は、化学、医薬、電子、セラミックス、食品、飼料その他の分野の固体/液体系の処理材料であるスラリーを混練、分散処理して微粒子化することができ、粘度範囲が約１〜１００ｄＰａ・ｓの低粘度から中粘度の処理材料(スラリー)の処理に好適に使用することができる。 INDUSTRIAL APPLICABILITY The present invention can knead and disperse a slurry, which is a solid/liquid type processing material in the fields of chemistry, medicine, electronics, ceramics, food, feed and other fields, into fine particles, and has a viscosity range of about 1 to 100 dPa. It can be suitably used for treating a low to medium viscosity treatment material (slurry) of s.

図１に示すように、本発明の混練・分散装置は、処理槽(ベッセル)１とこの処理槽内で回転する回転体(ローター)２を有する。処理槽１の前蓋３には、固体と液体を含む処理材料をホッパー４から受け入れる供給口５が設けられ、回転体の後方には処理された材料を処理槽から吐出する吐出口６が設けられ、該吐出口６は配管７を通して上記ホッパー４に連絡され、回転体２と供給口５の間にはポンプ室８が形成されている。なお、供給口５の位置は、図１に示すように、処理材料が低粘度のときは処理槽１の中心部とし、中粘度のときは後記する吸引作用により生じる吸引位置の程度に応じて中心部より上方に設けることが好ましい。処理槽１の周囲には、冷却水等の調温媒体を流通させるジャケット９が設けられ、ジャケットには流入口１０と流出口１１が設けられている。上記回転体２は、メカニカルシール１２を通して駆動モーター(図示略)に連結された駆動軸１３により回転される。 As shown in FIG. 1, the kneading/dispersing apparatus of the present invention has a processing tank (vessel) 1 and a rotating body (rotor) 2 that rotates in the processing tank. The front lid 3 of the processing tank 1 is provided with a supply port 5 for receiving a processing material containing a solid and a liquid from the hopper 4, and a discharge port 6 for discharging the processed material from the processing tank is provided behind the rotating body. The discharge port 6 is connected to the hopper 4 through a pipe 7, and a pump chamber 8 is formed between the rotating body 2 and the supply port 5. The position of the supply port 5 is, as shown in FIG. 1, the center of the processing tank 1 when the processing material has a low viscosity, and when the processing material has a medium viscosity, the position of the supply port 5 depends on the degree of the suction position generated by the suction action described later. It is preferably provided above the central portion. A jacket 9 for circulating a temperature control medium such as cooling water is provided around the processing tank 1, and an inlet 10 and an outlet 11 are provided in the jacket. The rotating body 2 is rotated by a drive shaft 13 connected to a drive motor (not shown) through a mechanical seal 12.

上記処理槽１の内壁と回転体２の外周面間には環状の微少間隙１４が形成され、上記供給口５から供給された処理材料(スラリー)は、この環状の微少間隙１４に送り込まれ、混練・分散処理を受ける。この微少間隙の寸法は、約１．０〜１０ｍｍ、好ましくは約２．０〜５．０ｍｍ程度に形成してある。 An annular minute gap 14 is formed between the inner wall of the treatment tank 1 and the outer peripheral surface of the rotating body 2, and the treatment material (slurry) supplied from the supply port 5 is fed into the annular minute gap 14. Kneading and dispersion processing is performed. The size of the minute gap is set to about 1.0 to 10 mm, preferably about 2.0 to 5.0 mm.

上記回転体２は、種々の形状に形成することができるが、図１に示す実施例では断面円形の筒状体に形成され、回転体の回転により処理材料は、微少間隙内で連続的に圧縮、剪断作用を受けことにより混練・分散される。回転体の外周面はフラットな面でもよいが、図１に示す実施例では、回転体２の外周面に、円周方向に間隔をあけて凹部１５を設けることにより長手方向に延びる複数の帯状突起１６を形成してある。このように、回転体２に長手方向に延びる帯状突起１６を形成すると、この帯状突起１６の部分で処理材料は圧縮、剪断作用を受け、突起間の凹部１５では、開放、膨張作用を受ける。このような圧縮、剪断作用と開放、膨張作用は、供給口５側から吐出口６側に流動する間に処理材料に繰り返して作用される。 The rotating body 2 can be formed into various shapes, but in the embodiment shown in FIG. 1, the rotating body 2 is formed into a cylindrical body having a circular cross section, and the rotation of the rotating body causes the processing material to continuously flow in a minute gap. It is kneaded and dispersed by being subjected to compression and shearing actions. The outer peripheral surface of the rotating body may be a flat surface, but in the embodiment shown in FIG. 1, a plurality of strips extending in the longitudinal direction are provided on the outer peripheral surface of the rotating body 2 by providing recesses 15 at circumferential intervals. The protrusion 16 is formed. When the strip-shaped projections 16 extending in the longitudinal direction are formed on the rotating body 2 in this manner, the processing material is subjected to compression and shearing action at the portions of the strip-shaped projections 16 and the opening and expansion actions are performed at the recesses 15 between the projections. Such compression, shearing action, opening action, and expansion action are repeatedly applied to the processing material while flowing from the supply port 5 side to the discharge port 6 side.

また、上記回転体２の表面は、回転体製造時の表面のままでもよいが、混練、分散を推進できる形状、構造にすることもできる。例えば回転体２の表面全体や上記帯状突起１６の表面に、ローレット加工により、刻み目を形成することができる。図１に示す実施例では、回転体の帯状突起１６の表面に、水平線状、斜め線状等の平目状ローレットや、四角目、クロス目、ダイヤ目等の綾目状ローレットの刻み目を形成してある。この刻み目により形成される微小凹凸部の高さは、約１．０〜０．１ｍｍ、好ましくは約０．６〜０．３ｍｍに設けられている。 Further, the surface of the rotator 2 may be the surface at the time of manufacturing the rotator, but may have a shape and a structure that can promote kneading and dispersion. For example, notches can be formed on the entire surface of the rotating body 2 or the surface of the band-shaped projection 16 by knurling. In the embodiment shown in FIG. 1, flat knurls such as horizontal lines and diagonal lines, and notches of twilled knurls such as squares, crosses, and diamonds are formed on the surface of the band-shaped projection 16 of the rotating body. There is. The height of the minute concavo-convex portion formed by the notches is about 1.0 to 0.1 mm, preferably about 0.6 to 0.3 mm.

上記ポンプ室８には、環状の上記微少間隙１４に近接する外径を有し回転により負圧を発生してポンプ作用を生じる吸引円板１７が設けられている。該吸引円板１７は、筒状の上記回転体の端部に嵌合して固定するための嵌合部１８を基板の一端側に有し、他端側の中央に、回転体２と共に上記駆動軸１３に取り付けるためのボルト(図示略)を固定するナット嵌めこみ用の孔２０有するボス部１９が形成されている。該ボス部１９の外周にはボス部から半径方向に延びる羽根状の***部２１が突設されている。該***部２１は、吸引円板１７が回転した際、固体粒子の飛距離性と方向性を考慮して、ボス部付近に負圧を発生させて処理材料を吸引し、遠心力で処理材料を外周に飛散させて効率よくポンプ作用を奏することができる適宜の形状に形成されている。図に示す実施例では、あたかも手裏剣のように、十字手裏剣型に、基端から先端に向かって次第に幅狭になる形状の４個の***部２１を形成してあるが、３個、５〜１０個等複数の***部を設けることができる。そして、研究によれば、各***部２１は、図３に示すように、上記吸引円板１７の円形を直交する中心線で４等分し、***部２１の中央線２２が、上記中心線の一方の中心線２３から約６０度の角度で傾斜するものとした際、処理材料が当接する***部側面２４が上記ボス部１９の外径、すなわち上記中心線の他方の中心線２５に対し約４５度の角度で傾斜している形状が好ましいことが確かめられた。また、上記***部側面２４は、回転した際、ボス部１９から吸引円板の外周に流れる処理材料が上記***部側面２４側に入り込むよう傾斜しており(図５参照)、***部２１の外表面から見て***部に沿って少し内方に凹んでいる。 The pump chamber 8 is provided with a suction disk 17 having an outer diameter close to the annular minute gap 14 and generating a negative pressure by rotation to generate a pumping action. The suction disk 17 has a fitting portion 18 for fitting and fixing the end portion of the cylindrical rotating body on one end side of the substrate, and at the center of the other end side together with the rotating body 2 the above. A boss portion 19 having a nut fitting hole 20 for fixing a bolt (not shown) for attaching to the drive shaft 13 is formed. On the outer periphery of the boss portion 19, a blade-shaped raised portion 21 extending in the radial direction from the boss portion is provided in a protruding manner. When the suction disk 17 rotates, the raised portion 21 generates a negative pressure near the boss portion to suck the processing material in consideration of the flight distance and the directionality of the solid particles, and the processing material is centrifugally applied. Is formed in an appropriate shape that can scatter to the outer periphery to efficiently perform a pumping action. In the embodiment shown in the drawing, like a shuriken, four ridges 21 having a shape gradually narrowing from the base end to the tip are formed in a cross shuriken shape. Multiple ridges, such as ten, can be provided. Then, according to the research, as shown in FIG. 3, each ridge 21 divides the circle of the suction disk 17 into four equal parts with the center line orthogonal to each other, and the center line 22 of the ridge 21 is the center line. When inclined at an angle of about 60 degrees from one of the center lines 23, the side surface 24 of the raised portion against which the processing material abuts is the outer diameter of the boss portion 19, that is , the other center line 25 of the center line. It has been determined that a shape inclined at an angle of about 45 degrees is preferred. Further, the ridge portion side surface 24 is inclined so that the processing material flowing from the boss portion 19 to the outer circumference of the suction disk enters the ridge portion side surface 24 side when rotating (see FIG. 5 ), and A slight indentation along the ridge viewed from the outer surface.

図７は、***部側面２４の傾斜角度による吸引円板１７の駆動作用の相違を示している。図７に示すように該***部側面２４に当たったスラリーに含まれている粗大粒子は、吸引円板の回転により吸引円板の回転方向(入力方向)と、半径方向(出力方向)に飛ばされるが、同(Ａ)に示すように、傾斜角度を約４５度に形成すると、回転方向(入力方向)に飛ばされるものと、半径方向(出力方向)に飛ばされるものがほぼ等しくなり、吸引円板を安定状態で運転することが可能となる。これに対し、例えば約３０度と、傾斜角度を大きくすると、同図(Ｂ)に示すように衝突量が多くなり、円板を回転させるための動力が大きくなり、また発熱も多くなって処理材料に影響を与えるおそれがある。一方、同図(Ｃ)に示すように、傾斜度が例えば約６０度と小さいと、衝突が少なくなり、円周方向流が主体となって吐き出しが弱くなり、ポンプ作用が減少する。 FIG. 7 shows the difference in the driving action of the suction disk 17 depending on the inclination angle of the side surface 24 of the raised portion. As shown in FIG. 7, coarse particles contained in the slurry hitting the side surface 24 of the raised portion are scattered in the rotation direction (input direction) of the suction disk and the radial direction (output direction) by the rotation of the suction disk. However, as shown in (A), if the tilt angle is set to about 45 degrees, what is blown in the rotation direction (input direction) is almost equal to that blown in the radial direction (output direction), and suction is performed. It is possible to operate the disk in a stable state. On the other hand, if the tilt angle is increased to about 30 degrees, for example, the amount of collision increases, the power for rotating the disc increases as shown in FIG. May affect material. On the other hand, as shown in FIG. 6C, when the inclination is small, for example, about 60 degrees, collisions are reduced, the circumferential flow becomes the main component, the discharge is weakened, and the pump action is reduced.

上記のように、***部２１の先端をボス部側の基端の幅より次第に狭く形成したことにより隣接する***部との間には円周方向の幅が中心部で狭く外周部で幅広になった凹部空間２６が形成される。この凹部空間２６には、負圧によりポンプ室に入った処理材料が入り込み、吸収引板１７の回転により凹部空間２６を通って外周に向かって拡散されるが、外周縁が幅広になっているので、吐出量を増大させることができる。その結果、吸引円板によるポンプ作用が高められ、上記環状の微少間隙に処理材料を積極的に送り込むことができる。 As described above, by forming the tip of the raised portion 21 to be gradually narrower than the width of the base end on the boss side, the circumferential width between the adjacent raised portions is narrow at the central portion and wide at the outer peripheral portion. The recessed space 26 is formed. The processing material that has entered the pump chamber due to negative pressure enters the recess space 26, and is diffused toward the outer periphery through the recess space 26 by the rotation of the absorption drawing plate 17, but the outer peripheral edge is wide. Therefore, the discharge amount can be increased. As a result, the pumping action of the suction disk is enhanced, and the processing material can be positively fed into the annular minute gap.

上記のようにしてポンプ室８から環状に微少間隙１４に送り込まれた処理材料は、回転体２の外面と処理槽１の内壁間で圧縮、剪断作用をうけて混練・分散され、上記吐出口６から吐出する。吐出口６から出た処理材料は配管７を通してホッパー４に戻り、再度供給口５から処理槽１に自己吸引され、所望程度になるまで連続式に混練・分散される。 The processing material annularly sent from the pump chamber 8 to the minute gap 14 is kneaded and dispersed between the outer surface of the rotating body 2 and the inner wall of the processing tank 1 by being compressed and sheared, and the discharge port is discharged. Discharge from 6. The processing material discharged from the discharge port 6 returns to the hopper 4 through the pipe 7, is again self-sucked from the supply port 5 into the processing tank 1, and is continuously kneaded and dispersed to a desired degree.

図８に示す実施例は、回転体２の外面の形状が上記図１に示す実施例と相違している。この実施例では、回転体２は軸方向に沿って略平行四辺形の撹拌突起２７を間隔をあけて多数設けてある。この平行四辺形は、回転体の軸方向に長い２辺が並び、他の斜行する２辺は供給口側から吐出口側に向かって傾斜している。この回転体２によれば、処理槽１の内壁と回転体２の外面間の環状の微少間隙１４に送り込まれた処理材料はあたかも栓流(プラグフロー)状に流れ、効率よく混練・分散することができる。 The embodiment shown in FIG. 8 differs from the embodiment shown in FIG. 1 in the shape of the outer surface of the rotating body 2. In this embodiment, the rotating body 2 is provided with a large number of substantially parallelogram stirring protrusions 27 at intervals along the axial direction. In this parallelogram, two long sides are arranged in the axial direction of the rotating body, and the other two slanting sides are inclined from the supply port side toward the discharge port side. According to the rotating body 2, the processing material fed into the annular minute gap 14 between the inner wall of the processing tank 1 and the outer surface of the rotating body 2 flows like a plug flow and is efficiently kneaded and dispersed. be able to.

上記実施例では、吸引円板によるポンプ作用は遠心ポンプを応用しており、渦巻ポンプに似ているが、***部の外側に位置するよう複数の案内羽根を前蓋の内側に設けてタービンポンプ様のポンプ作用にすることもできる。 In the above embodiment, the pumping action by the suction disk applies a centrifugal pump, which is similar to a centrifugal pump, but a plurality of guide vanes are provided inside the front lid so as to be located outside the ridge and the turbine pump It is also possible to have a similar pumping action.

(実施例１)
株式会社井上製作所のセラミック回転体(ローター)を有する混練・分散機ＣＰＭ−２を使用し、ローター２の端部に、図８に示すように吸引円板１７を取付けた。ホッパー４に水を供給し、周速３．６ｍ/secで運転したところ、１．７ｋg/minの吐出量で、滞留時間は４．４秒であり、水柱圧力計で測定したところ、ポンプ室に０．００７ＭPa(GAUGE)の吸引圧を生じた。
また、周速１１ｍ/secで運転したところ、８．６ｋg/minの吐出量で、滞留時間は０．８７秒、吸引圧は０．０３４ＭPa(GAUGE)であった。 (Example 1)
Using a kneading/dispersing machine CPM-2 having a ceramic rotor (rotor) manufactured by Inoue Seisakusho Co., Ltd., a suction disk 17 was attached to an end of the rotor 2 as shown in FIG. When water was supplied to the hopper 4 and operated at a peripheral speed of 3.6 m/sec, the discharge rate was 1.7 kg/min, the residence time was 4.4 seconds, and when measured with a water column pressure gauge, the pump chamber A suction pressure of 0.007 MPa (GAUGE) was generated.
When operated at a peripheral speed of 11 m/sec, the discharge rate was 8.6 kg/min, the residence time was 0.87 seconds, and the suction pressure was 0.034 MPa (GAUGE).

(実施例２)
同じ装置を用い、ホッパーに供給粘度５５ｄPa・sの２．２５％のＣＭＣ(カルボキシメチルセルロース)水溶液を供給して運転した。吐出時２７ｄPa・sで周速７．３ｍ/sec時、０．１３ｋg/minの吐出量で、滞留時間は５８秒、吸引圧は０．０１ＭPa(GAUGE)であった。
また、周速１５ｍ/secで運転したところ、４．９ｋg/minの吐出量で、滞留時間は１．５秒、吸引圧は０．０５ＭPa(GAUGE)であり、中粘度材料の処理も可能であることが確かめられた。
(評価)
実施例１、２に示す通り吸収円板によりポンプ室に負圧を生じて吸引圧を発生することができ、従来のような供給ポンプを処理槽の外部に設ける必要がないことが確かめられた。 (Example 2)
Using the same apparatus, operation was performed by supplying a 2.25% CMC (carboxymethyl cellulose) aqueous solution having a supply viscosity of 55 dPa·s to the hopper. When the discharge was 27 dPa·s, the peripheral speed was 7.3 m/sec, the discharge rate was 0.13 kg/min, the residence time was 58 seconds, and the suction pressure was 0.01 MPa (GAUGE).
When operated at a peripheral speed of 15 m/sec, the discharge rate was 4.9 kg/min, the residence time was 1.5 seconds, and the suction pressure was 0.05 MPa (GAUGE). It was confirmed that there was.
(Evaluation)
As shown in Examples 1 and 2, it was confirmed that the absorption disk can generate a negative pressure in the pump chamber to generate a suction pressure, and that it is not necessary to provide a conventional supply pump outside the processing tank. ..

比較例Comparative example

上記と同じ装置を用い、吸引円板の代わりに表面が平らな従来の円板ワッシャーを取り付けた。ホッパーに水を供給し、周速３．６ｍ/secから１１ｍ/secまで運転し、水柱圧力計による吸引圧を確認したところ、吸引圧は極めて低く、吐出量は約２ｋg/minであり、ポンプ作用は認められなかった。 Using the same equipment as above, a conventional disk washer with a flat surface was attached instead of the suction disk. Water was supplied to the hopper, the peripheral speed was operated from 3.6 m/sec to 11 m/sec, and the suction pressure was confirmed by the water column pressure gauge. The suction pressure was extremely low and the discharge rate was about 2 kg/min. No effect was observed.

以上のように、処理槽１の供給口５側にポンプ室８を設けてその内部で吸引円板１７を回転させることにより負圧によるポンプ作用を生じさせることができ、従来のように供給ポンプを処理槽の外部に設置する必要がない。そのため、供給ポンプが不要になり、かつ連続化のための配管を短縮することが可能となり、少量の処理材料の確認テストにも使用でき、スラリーを自己吸引式に連続して効率よく混練・分散処理することができる。 As described above, by providing the pump chamber 8 on the supply port 5 side of the processing tank 1 and rotating the suction disk 17 inside the pump chamber 8, it is possible to generate a pumping action by negative pressure. Need not be installed outside the processing tank. As a result, a supply pump is not required and the piping for continuity can be shortened, it can also be used for confirmation tests of small amounts of processing materials, and the slurry can be continuously kneaded and dispersed efficiently in a self-suction system. Can be processed.

１処理槽
２回転体
５供給口
６吐出口
８ポンプ室
１４微少間隙
１７吸引円板
２１ ***部
２４ ***部側面
２６凹部空間 DESCRIPTION OF SYMBOLS 1 Processing tank 2 Rotating body 5 Supply port 6 Discharge port 8 Pump chamber 14 Small gap 17 Suction disk 21 Raised part 24 Raised part side surface 26 Recessed space

Claims

固体/液体系処理材料の供給口と吐出口を有する処理槽と、該処理槽の内壁との間に環状の微少間隙を存して回転可能に設けられた回転体と、該回転体と上記供給口の間に設けられたポンプ室を具備し、該ポンプ室には上記回転体の端面に固定され上記微少間隙に近接する外径を有し回転により負圧作用を生じる吸引円板が設けられ、上記吸引円板にはボス部から半径方向に延びる羽根状の***部が突設され、該***部はボス部から外周に向かって次第に幅狭に形成されており、該吸引円板で処理材料を処理槽内に吸引して上記微少間隙で混練・分散し、上記吐出口から吐出することを特徴とするスラリーの混練・分散装置。 A processing tank having a supply port and a discharge port for a solid/liquid type processing material, a rotating body rotatably provided with an annular minute gap between the inner wall of the processing tank, the rotating body, and the above A pump chamber provided between the supply ports is provided, and the pump chamber is provided with a suction disk having an outer diameter fixed to the end surface of the rotating body and having a diameter close to the minute gap and generating a negative pressure action by rotation. The suction disk is provided with a blade-shaped ridge extending in a radial direction from the boss, and the ridge is gradually narrowed from the boss toward the outer circumference. A kneading/dispersing apparatus for a slurry, wherein a processing material is sucked into a processing tank, kneaded/dispersed in the minute gap, and discharged from the discharge port.

上記吸引円板の円形を直交する中心線で４等分し、上記***部の中心線が、上記中心線の一方の中心線から６０度の角度で傾斜するものとした際、***部側面は、上記中心線の他方の中心線に対し４５度の角度で傾斜している請求項１に記載のスラリーの混練・分散装置。 When the circle of the suction disk is divided into four equal parts by orthogonal center lines and the center line of the ridge is inclined at an angle of 60 degrees from one center line of the center line, the side face of the ridge is The kneading/dispersing device for a slurry according to claim 1, wherein the device is inclined at an angle of 45 degrees with respect to the other center line of the center lines.

上記吸引円板が回転した際、処理材料が当接する上記***部の側面は***部に沿って凹んでいる請求項１又は２に記載のスラリーの混練・分散装置。 3. The slurry kneading/dispersing device according to claim 1, wherein a side surface of the raised portion, which comes into contact with the processing material when the suction disk rotates, is recessed along the raised portion .

上記吐出口と供給口はホッパーを介して連結され、処理槽で吸引された処理材料を連続式に処理するようにした請求項１から３のいずれかに記載のスラリーの混練・分散装置。 The slurry kneading/dispersing device according to any one of claims 1 to 3, wherein the discharge port and the supply port are connected via a hopper so that the processing material sucked in the processing tank is processed continuously .