JP4189831B2

JP4189831B2 - Media distribution device

Info

Publication number: JP4189831B2
Application number: JP30187399A
Authority: JP
Inventors: 政憲井上
Original assignee: Inoue Mfg Inc
Current assignee: Inoue Mfg Inc
Priority date: 1999-10-25
Filing date: 1999-10-25
Publication date: 2008-12-03
Anticipated expiration: 2019-10-25
Also published as: JP2001120976A

Description

【０００１】
【発明の属する技術分野】
本発明は、分散媒体を用いて固液スラリ−溶液等の処理材料中の固体粒子を微粒子化し、液中に分散するようにした媒体分散装置に関し、特にポンプを使用しないで処理材料を処理槽に循環できるようにした循環型の媒体分散装置に係るものである。
【０００２】
【従来の技術】
分散媒体を用いて分散処理を行う媒体分散装置は種々の用途で使用されている。その中で、固液スラリ−溶液等の処理材料を供給ポンプを使用せずに処理槽内に設けた円板の回転による吸引作用で該処理槽内に吸引し、分散媒体と共に攪拌して分散処理し、吐出口から吐出し、再び上記処理槽内に吸引し、循環して分散処理するようにした循環型の媒体分散装置が知られている。
【０００３】
上記循環型の媒体分散装置では、円筒状の処理槽内に複数枚の円板を設けて回転させているが、上記複数枚の円板は、ほぼ円柱状の連結部材で連結され、円板の表面は実質的に平坦に形成されており、円板による摩砕力、剪断力によって分散する機構である。そのため、循環流量は、上記円板の回転速度による遠心吐出量によって制限され、流量を増加させることがむずかしく、その上スラリ−溶液粘度が高粘度になると充分な処理ができなくなり、約２Pa.s (2000cps)程度までであった。
【０００４】
特に、近年は、処理材料の粘度が高粘度のものが多くなってきており、これに対応して分散媒体も比重の大きいセラミックスやジルコニアビ−ズ等が用いられ、円板の回転数も高くなってきているが、上述したように従来の循環型の媒体分散装置では円板が平坦なので高粘度の処理材料の吐出量を増加させることができず、問題となっていた。
【０００５】
上記円板に羽根を設けて遠心力で分散媒体等を外周に飛ばすようにすれば、吐出量を増すことができるかも知れないが、上述のような循環型の媒体分散装置では円板の外周部に分散媒体が集まり、分散媒体の全体の動きが悪くなるから、効率よく分散処理することができなくなる。
【０００６】
【発明が解決しようとする課題】
本発明の解決課題は、上記のように円筒状の処理槽内で複数枚の円板を回転させることにより吸引作用を生じさせて処理材料を処理槽内に吸引し、分散処理後吐出口から吐出し再び上記処理槽に吸引して循環して分散処理できるようにした媒体分散装置において、循環流量を多くして均一な分散への処理時間や洗浄時間を短縮でき、また高粘度の処理材料も処理できるようにして使用粘度範囲を広げ、これにより各種の用途に応用できるようにした媒体分散装置を提供することである。
【０００７】
【課題を解決するための手段】
本発明によれば、円筒状の処理槽内で間隔をあけて並列させた複数枚の円板を回転し、上記処理槽の円筒端面に設けた吸引口から上記円板の中央部に形成された貫通孔に処理材料を吸引し、該処理槽内に収納した分散媒体と共に上記処理材料を攪拌して分散し処理槽の外周に設けた吐出口から処理材料を吐出するようにした媒体分散装置において、上記円板間に上記分散媒体と処理材料を径方向へ飛ばすよう中央部の貫通孔に面する内端面と該内端面に連絡する両側面を有する放射状に延びる間隔部材を形成し、該間隔部材より外側の円板の外周部に上記分散媒体等に衝撃力を与える作用部を形成したことを特徴とする媒体分散装置が提供され、上記課題が解決される。
【０００８】
また、上記間隔部材は、複数枚の円板を連結する際の間隔保持部材及び連結部材としての機能を有し、かつ上記作用部を上記円板の半径の約６５〜９０％位置より外周、好ましくは約８０％位置に設けた上記媒体分散装置が提供され、上記課題が解決される。
【０００９】
【発明の実施の形態】
図１は、本発明の一実施例を示し、図において略円筒状の処理槽（１）内には、一体的に連結された複数枚の円板（２),（３),（４）が設けられ、該円板（４）にはモ−タ−（５）に連結された駆動軸（６）が取付けられている。該処理槽（１）の側面中央部（円筒端面）には吸引口（７）が形成され、該吸引口（７）に接続された供給パイプ（８）はバルブ（９）を介し固液スラリ−溶液等の処理材料(10)を収納したタンク(11)に連絡している。該処理槽内には分散媒体(12)…が収納され、外周には上記分散媒体を処理材料から分離する媒体分離装置(13)を介して吐出口(14)が形成され、該媒体分離装置(13)を通過した処理材料を上記タンク(11)へ戻すための循環パイプ(15)が設けられている。上記タンク(11)内にはモ−タ−(16)により上記処理材料を攪拌する攪拌翼(17)が設けられている。
【００１０】
上記円板（２),（３）の中央部には、図２、図３に示すように貫通孔(18)が形成されており、上記モ−タ−（５）によって上記円板（２),（３),（４）を回転すると吸引力を生じて処理材料(10)が上記タンク(11)から吸引口（７）を通って上記貫通孔に流入し、円板（２),（３),（４）の回転によって運動が与えられた分散媒体(12)と共に攪拌して、分散処理されるよう構成されている。
【００１１】
而して、上記円板間には、上記分散媒体(12)と処理材料(10)を径方向に飛ばすよう中央部から放射状に延びる複数個の間隔部材(19)…が設けられている。該間隔部材(19)は断面四辺形、台形等適宜の形状に形成できるが、図に示す実施例においては、図４、図５に示すように断面矩形状に形成され、上記貫通孔(18)に面する内端面(20)を幅狭に形成し、該内端面(20)に連絡する両側面のうち、一方の側面(21)を直線状に形成し、他の側面(22)に斜面(23)を設け、外端面(24)の角部を弧状に形成してある。また、該間隔部材(19)は、上記円板（２),（３),（４）を連結する連結部材と別に独立して形成することもできるが、図においては挿通孔(25)を形成し、該挿通孔(25)にボルト(26)を挿通して上記円板を連結する連結部材を兼ねている。この際、上記間隔部材(19)には円板に形成した係合凹部(27)に係合する係合突起(28)を設けて回り止めしてある。
【００１２】
上記間隔部材(19)…より外側の円板の外周部、すなわち間隔部材の回転軌跡の外側には、上記分散媒体(12)…にさらに積極的に運動を与えて強力に掻き混ぜできるよう作用部(29)が形成されている。該作用部(29)は円板の外周に密集しようとする分散媒体に衝撃力を加えることができるよう図に示すように好ましくは円板にピン状の突起(30)…を突設してあるが、処理材料や分散媒体の性状によっては、円板の表面に形成した突部、凹部や適宜の大きさの開孔等（図示略）であってもよい。
【００１３】
上記間隔部材(19)と作用部(29)の位置は、分散媒体(12)の充填率を処理槽（１）の容量の約６５〜８５％とした場合、上記間隔部材(19)…によって分散媒体が円板の外周部に飛ばされたときでも上記分散媒体に充分な運動を与えることができる位置に作用部が位置するようにしてある。実験によれば、この位置は上記円板の半径の約６５〜９０％位置、好ましくは約８０％位置に設ければ効率よく分散媒体に運動を与えられることが確かめられた。上記位置より内方に作用部が位置していると間隔部材による外周への飛ばし量が少なく、その結果所望とする循環流量が得られなくなり、また上記位置より外方に作用部が位置していると、間隔部材の外端部により分散媒体の動きが阻害され、円板の外周部に媒体が密集しすぎて充分な分散処理を行うことができない。
【００１４】
【実施例】
図２、図３に示すように円板間に間隔部材(19)…を取付け、ピン状の突起(30)を作用部(29)として設けた円板を有する本発明の装置と、間隔部材や作用部を具備せず平坦状の円板を円柱状の連結部材で単に連結した従来の装置を用いて粘度の異なる各種の固液スラリ−溶液を循環して分散処理を行ったところ、本発明の装置では、固液スラリ−溶液が間隔部材によって強制的に外周に飛ばされ、従来の装置に比較して循環流量を約２倍に増加することができた。また分散時間も短縮することができた。具体的には、ある塗料の分散処理において、従来の装置では、循環流量が８Kg／min で分散時間が２４時間であったものが、本発明の装置では循環流量が１７Kg／min となり、分散時間は１９時間であった。さらに、粘度は、本発明の装置では、約５Pa.s (5000cps)程度の高粘度のスラリ−溶液でも充分に分散処理することができた。
【００１５】
【発明の効果】
本発明は上記のように構成され、円筒状の処理槽内で間隔をあけて並列した複数枚の円板を回転し、上記処理槽の円筒端面に設けた吸引口から上記円板の中央部に形成された貫通孔に処理材料を吸引し、該処理槽内に収納した分散媒体と共に上記処理材料を攪拌して分散し処理槽の外周に設けた吐出口から処理材料を吐出するようにした媒体分散装置において、上記円板間に上記分散媒体と処理材料を径方向へ飛ばすよう中央部から放射状に延びる間隔部材を形成し、該間隔部材より外側の円板の外周部に上記分散媒体等に衝撃力を与える作用部を形成したから、間隔部材によってスラリ−溶液等の処理材料を強制的に外周に飛ばして循環流量を増やすことができ、その際該間隔部材の外周に作用部を設けたので、円板の外周部に密集する分散媒体に衝撃力を加えて強力に掻き混ぜることができ、均一な分散への時間短縮や洗浄時間の短縮が可能であり、また高粘度の処理材料でも分散処理することができ、適用粘度範囲が広く、応用範囲を広くすることができる。
【図面の簡単な説明】
【図１】本発明の一実施例を示す説明図。
【図２】円板の一部を断面した正面図。
【図３】円板の一部を断面した側面図。
【図４】間隔部材の一実施例を示す正面図。
【図５】図４に示す間隔部材の側面図。
【符号の説明】
１処理槽
２，３，４円板
７吸引口
10 処理材料
12 分散媒体
14 吐出口
19 間隔部材
29 作用部
30 ピン状の突起[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to a medium dispersing apparatus in which solid particles in a processing material such as a solid-liquid slurry solution are made into a fine particle using a dispersion medium and dispersed in the liquid, and in particular, the processing material is processed without using a pump. The present invention relates to a circulation type medium dispersion device that can be circulated in a continuous manner.
[0002]
[Prior art]
Media dispersion apparatuses that perform dispersion processing using a dispersion medium are used in various applications. Among them, a processing material such as a solid-liquid slurry solution is sucked into the processing tank by a rotating action of a disk provided in the processing tank without using a supply pump, and is stirred and dispersed together with a dispersion medium. 2. Description of the Related Art A circulation type medium dispersion device is known which is processed, discharged from a discharge port, sucked again into the treatment tank, and circulated for dispersion treatment.
[0003]
In the circulation type medium dispersing apparatus, a plurality of disks are provided in a cylindrical processing tank and rotated. However, the plurality of disks are connected by a substantially columnar connecting member. The surface of this is formed to be substantially flat, and is a mechanism that disperses by the grinding force and shearing force of the disk. Therefore, the circulation flow rate is limited by the centrifugal discharge amount due to the rotational speed of the disk, and it is difficult to increase the flow rate. Moreover, when the slurry-solution viscosity becomes high, sufficient treatment cannot be performed, and about 2 Pa.s. (2000cps).
[0004]
In particular, in recent years, the viscosity of processing materials has increased in viscosity. Correspondingly, ceramics and zirconia beads having a high specific gravity are used as the dispersion medium, and the rotational speed of the disk is high. However, as described above, in the conventional circulation type medium dispersion device, since the disk is flat, the discharge amount of the processing material having a high viscosity cannot be increased, which is a problem.
[0005]
If the disk is provided with blades and the dispersion medium is blown to the outer periphery by centrifugal force, the discharge amount may be increased. However, in the circulation type medium dispersion device as described above, the outer periphery of the disk Since the dispersion medium gathers in the section and the overall movement of the dispersion medium becomes worse, it becomes impossible to perform dispersion processing efficiently.
[0006]
[Problems to be solved by the invention]
The problem to be solved by the present invention is that the processing material is sucked into the processing tank by rotating a plurality of disks in the cylindrical processing tank as described above, and is discharged from the discharge port after the dispersion processing. In a medium dispersion device that can be discharged and sucked into the treatment tank and circulated for dispersion treatment, the circulation flow rate can be increased to shorten treatment time for uniform dispersion and washing time, and high viscosity treatment material It is also possible to provide a medium dispersing device that can be applied to various uses by expanding the viscosity range in use.
[0007]
[Means for Solving the Problems]
According to the present invention, a plurality of discs arranged in parallel at intervals in a cylindrical processing tank are rotated and formed at the central portion of the disc from a suction port provided on the cylindrical end surface of the processing tank. A medium dispersing apparatus that sucks the processing material into the through-hole , stirs and disperses the processing material together with the dispersion medium stored in the processing tank, and discharges the processing material from the discharge port provided on the outer periphery of the processing tank A radially extending spacing member having an inner end face facing the through hole in the central portion and both side faces communicating with the inner end face so as to fly the dispersion medium and the processing material in the radial direction between the discs, Provided is a medium dispersing device characterized in that an action portion for applying an impact force to the dispersion medium or the like is formed on the outer peripheral portion of the disk outside the spacing member, and the above-mentioned problems are solved.
[0008]
Further, the spacing member has a function as a spacing holding member and a connecting member when connecting a plurality of discs, and the action portion is located at an outer periphery from a position of about 65 to 90% of the radius of the disc. Preferably, the above-mentioned medium dispersing apparatus provided at a position of about 80% is provided, and the above-mentioned problems are solved.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows an embodiment of the present invention, and a plurality of discs (2), (3), (4) integrally connected in a substantially cylindrical processing tank (1) in the figure. A drive shaft (6) connected to a motor (5) is attached to the disk (4). A suction port (7) is formed in the central portion (cylindrical end surface) of the side surface of the treatment tank (1), and a supply pipe (8) connected to the suction port (7) is connected to a solid-liquid slurry via a valve (9). -It communicates with a tank (11) containing a processing material (10) such as a solution. The dispersion tank (12) is accommodated in the treatment tank, and a discharge port (14) is formed on the outer periphery via a medium separation device (13) for separating the dispersion medium from the treatment material. A circulation pipe (15) is provided for returning the processing material that has passed through (13) to the tank (11). In the tank (11), a stirring blade (17) for stirring the processing material by a motor (16) is provided.
[0010]
As shown in FIGS. 2 and 3, a through hole (18) is formed in the center of the disks (2) and (3), and the disk (2) is formed by the motor (5). ), (3), (4), a suction force is generated, and the processing material (10) flows from the tank (11) through the suction port (7) into the through hole , and the disks (2), (4), The dispersion medium (12) is given a motion by the rotation of (3) and (4) and is agitated and dispersed.
[0011]
Thus, a plurality of spacing members (19) extending radially from the central portion are provided between the disks so as to fly the dispersion medium (12) and the processing material (10) in the radial direction. The spacing member (19) is a cross-sectional quadrilateral, can be formed in trapezoid appropriate shape, in the illustrated embodiment, FIG. 4, is formed in a rectangular sectional shape as shown in FIG. 5, the through hole (18 The inner end face (20) facing the inner end face is formed with a narrow width, and one side face (21) is linearly formed on both side faces connecting to the inner end face (20), and the other side face (22) is formed. A slope (23) is provided, and the corner of the outer end surface (24) is formed in an arc shape. The spacing member (19) can be formed independently of the connecting member for connecting the disks (2), (3), (4), but in the figure, the insertion hole (25) is formed. The connecting member is also formed to connect the disk by inserting the bolt (26) through the insertion hole (25). At this time, the spacing member (19) is provided with an engaging projection (28) that engages with an engaging recess (27) formed in a disc to prevent rotation.
[0012]
The outer circumferential portion of the outer disk of the spacing member (19), that is, the outer side of the rotation trajectory of the spacing member, acts to positively impart the motion to the dispersion medium (12) and vigorously stir the mixture. A portion (29) is formed. The action part (29) is preferably provided with a pin-like protrusion (30) ... protruding from the disk, as shown in the figure, so that an impact force can be applied to the dispersion medium to be concentrated on the outer periphery of the disk. However, depending on the properties of the treatment material and the dispersion medium, it may be a protrusion formed on the surface of the disk, a recess, an opening of an appropriate size, etc. (not shown).
[0013]
The position of the spacing member (19) and the action portion (29) is determined by the spacing member (19) when the filling rate of the dispersion medium (12) is about 65 to 85% of the capacity of the processing tank (1). Even when the dispersion medium is blown to the outer peripheral portion of the disk, the action portion is located at a position where sufficient movement can be given to the dispersion medium. According to experiments, it has been confirmed that if this position is provided at a position of about 65 to 90%, preferably about 80% of the radius of the disk, the dispersion medium can be efficiently moved. If the action part is located inward from the above position, the amount of flying to the outer periphery by the spacing member is small, and as a result, the desired circulation flow rate cannot be obtained, and the action part is located outward from the position. If this is the case, the movement of the dispersion medium is hindered by the outer end portion of the spacing member, and the medium is excessively concentrated on the outer periphery of the disk, so that sufficient dispersion treatment cannot be performed.
[0014]
【Example】
As shown in FIG. 2 and FIG. 3, the apparatus of the present invention having a disc with a spacing member (19) attached between the discs and having a pin-like projection (30) as an action portion (29), and the spacing member When various solid-liquid slurry solutions with different viscosities were circulated using a conventional apparatus in which a flat disk without a working part was simply connected by a cylindrical connecting member, dispersion treatment was performed. In the apparatus of the invention, the solid-liquid slurry solution was forcibly blown to the outer periphery by the spacing member, and the circulation flow rate could be increased about twice as compared with the conventional apparatus. Also, the dispersion time could be shortened. Specifically, in the dispersion treatment of a paint, in the conventional apparatus, the circulation flow rate was 8 kg / min and the dispersion time was 24 hours. In the apparatus of the present invention, the circulation flow rate was 17 kg / min, and the dispersion time was Was 19 hours. Further, the viscosity of the apparatus according to the present invention could be sufficiently dispersed even with a slurry solution having a high viscosity of about 5 Pa.s (5000 cps).
[0015]
【The invention's effect】
The present invention is configured as described above, and rotates a plurality of disks arranged in parallel at intervals in a cylindrical processing tank, and from the suction port provided on the cylindrical end surface of the processing tank, the central part of the disk The processing material is sucked into the through-holes formed in the processing tank, and the processing material is stirred and dispersed together with the dispersion medium stored in the processing tank, and the processing material is discharged from the discharge port provided on the outer periphery of the processing tank. In the medium dispersing apparatus, a spacing member extending radially from the central portion is formed between the disks so as to fly the dispersion medium and the processing material in the radial direction, and the dispersion medium or the like is formed on the outer peripheral portion of the disk outside the spacing member. Since the action part that gives impact force to the surface is formed, the treatment material such as slurry solution can be forcibly blown to the outer periphery by the spacing member, and the circulation flow rate can be increased. As a result, it is concentrated on the outer periphery of the disk. The impact force can be applied to the medium and stirred vigorously, reducing the time for uniform dispersion and shortening the washing time.Dispersion treatment can also be performed with high-viscosity processing materials. Wide application range.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing an embodiment of the present invention.
FIG. 2 is a front view showing a cross section of a part of a disc.
FIG. 3 is a side view showing a cross section of a part of a disc.
FIG. 4 is a front view showing an embodiment of a spacing member.
5 is a side view of the spacing member shown in FIG. 4. FIG.
[Explanation of symbols]
1 Treatment tank 2, 3, 4 Disc 7 Suction port
10 Processing materials
12 Dispersion media
14 Discharge port
19 Spacing member
29 Action part
30 Pin-shaped protrusion

Claims

円筒状の処理槽内で間隔をあけて並列させた複数枚の円板を回転し、上記処理槽の円筒端面に設けた吸引口から上記円板の中央部に形成された貫通孔に処理材料を吸引し、該処理槽内に収納した分散媒体と共に上記処理材料を攪拌して分散し処理槽の外周に設けた吐出口から処理材料を吐出するようにした媒体分散装置において、上記円板間に上記分散媒体と処理材料を径方向へ飛ばすよう中央部の貫通孔に面する内端面と該内端面に連絡する両側面を有する放射状に延びる間隔部材を形成し、該間隔部材より外側の円板の外周部に上記分散媒体等に衝撃力を与える作用部を形成したことを特徴とする媒体分散装置。A processing material is rotated from a suction port provided on the cylindrical end surface of the processing tank to a through hole formed in the central portion of the disk by rotating a plurality of disks arranged in parallel in the cylindrical processing tank at intervals. In the medium dispersing apparatus in which the processing material is stirred and dispersed together with the dispersion medium stored in the processing tank, and the processing material is discharged from the discharge port provided on the outer periphery of the processing tank. Forming a radially extending spacing member having an inner end face facing the through hole in the central portion and both side faces communicating with the inner end face so as to fly the dispersion medium and the processing material in the radial direction, and a circle outside the spacing member. An apparatus for dispersing a medium, wherein an action portion for applying an impact force to the dispersion medium or the like is formed on an outer peripheral portion of a plate.

複数枚の上記円板は、上記間隔部材部分で連結されている請求項１に記載の媒体分散装置。The medium dispersing apparatus according to claim 1, wherein the plurality of disks are connected by the spacing member portion.

上記作用部は、上記円板の半径の６５〜９０％位置より外周に設けられている請求項１または２に記載の媒体分散装置。The medium dispersing apparatus according to claim 1, wherein the action portion is provided on an outer periphery from a position of 65 to 90% of a radius of the disc.