JPH11267485A - Vertical agitator - Google Patents
Vertical agitatorInfo
- Publication number
- JPH11267485A JPH11267485A JP9227798A JP9227798A JPH11267485A JP H11267485 A JPH11267485 A JP H11267485A JP 9227798 A JP9227798 A JP 9227798A JP 9227798 A JP9227798 A JP 9227798A JP H11267485 A JPH11267485 A JP H11267485A
- Authority
- JP
- Japan
- Prior art keywords
- vertical
- gas
- tank
- blade
- flow
- 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.)
- Pending
Links
Landscapes
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、竪形撹拌装置に関
する。さらに詳しくは、水素添加反応、ＥＯ（エチレン
オキサイド）・ＰＯ（プロピレンオキサイド）の付加反
応、高粘度ガス吸収反応、高粘度系培養などの用途に用
いられ、主として液中に気体を混合し撹拌する竪形撹拌
装置に関する。TECHNICAL FIELD The present invention relates to a vertical stirring device. More specifically, it is used for applications such as a hydrogenation reaction, an addition reaction of EO (ethylene oxide) / PO (propylene oxide), a high-viscosity gas absorption reaction, and a high-viscosity culture, and mainly mixes and stirs a gas in a liquid. It relates to a vertical stirring device.
【０００２】[0002]
【従来の技術】古くからある撹拌装置として、図４に示
すような、多段パドル翼100 あるいはタービン翼を用い
た装置がある。しかし、このような上下に不連続な撹拌
翼では、それぞれの撹拌翼により半径方向に吐出された
流れは、槽壁にぶつかって上下に分かれるが、その後の
流れが各撹拌翼の引き起こす流れの相互干渉のため、上
下に分離した複数の循環流101 となり、槽底から液面ま
で全体として単一流動での循環流とならず混合性能が低
下していた。また、不連続な撹拌翼配置のために液面変
化に対し、不安定なガス吸収性能しか得られなかった。2. Description of the Related Art As an old stirring apparatus, there is an apparatus using a multi-stage paddle blade 100 or a turbine blade as shown in FIG. However, in such a vertically discontinuous stirring blade, the flow discharged in the radial direction by the respective stirring blades collides with the tank wall and splits vertically. Due to the interference, a plurality of circulating flows 101 were separated vertically, and the circulating flow from the tank bottom to the liquid level was not a single circulating flow as a whole, and the mixing performance was reduced. Also, due to the discontinuous arrangement of the stirring blades, only an unstable gas absorption performance was obtained even when the liquid level changed.
【０００３】そこで、このような問題を解決した撹拌翼
として、本出願人が提案しているパドルと格子翼を結合
した結合翼（従来例Ｉ、特公平１−３７１７３号公報）
や、前記従来例Ｉの格子翼を傾斜させ上方の半径を小さ
く下方の半径を大きくした傾斜結合翼（従来例II、特開
平８−２８１０８９号公報）がある。[0003] As a stirring blade that solves such a problem, a combined blade that combines a paddle and a lattice blade proposed by the present applicant (Conventional Example I, Japanese Patent Publication No. 1-337173).
Also, there is an inclined coupling blade (conventional example II, Japanese Patent Application Laid-Open No. 8-28089) in which the lattice blade of the conventional example I is inclined to reduce the upper radius and increase the lower radius.
【０００４】まず、前記従来例Ｉの結合翼を図５に基づ
き説明する。図５の(A) 図に示すように、円筒形の撹拌
槽１の中心に回転軸４が設けられ、この回転軸４に撹拌
翼２が固着されている。また、撹拌翼２の回転に伴う流
体の上下循環流を良好にするために槽内側壁に複数本の
バッフル３が設けられている。撹拌翼２は、回転軸４の
下部つまり槽底壁に近接する平板状のボトムパドル５
と、ボトムパドル５の上端に該パドル５の回転半径と同
じ回転半径をもつ格子翼６とからなる。この格子翼６は
一対の外側縦材７および一対の内側縦材８と、これらを
連結する横材によって構成されている。[0004] First, the connecting blade of the conventional example I will be described based on FIG. As shown in FIG. 5A, a rotating shaft 4 is provided at the center of a cylindrical stirring tank 1, and the stirring blade 2 is fixed to the rotating shaft 4. Also, a plurality of baffles 3 are provided on the inner wall of the tank in order to improve the vertical circulating flow of the fluid accompanying the rotation of the stirring blade 2. The stirring blade 2 has a flat bottom paddle 5 adjacent to the lower part of the rotating shaft 4, that is, the bottom wall of the tank.
And a lattice blade 6 having the same turning radius as the turning radius of the paddle 5 at the upper end of the bottom paddle 5. The lattice wing 6 includes a pair of outer vertical members 7 and a pair of inner vertical members 8, and a horizontal member connecting these members.
【０００５】図５の(B) 図は半径方向吐出流の強さを示
しており、はボトムパドル５の吐出流、は外側縦材
７による吐出流、は内側縦材８による吐出流である。
同(C) 図は半径方向吐出流が撹拌槽１の内壁に衝突して
上向きに流れる上昇流の強さを示している。図７は半径
方向吐出流と上昇流を総合した流動パターンを示してい
る。FIG. 5B shows the strength of the discharge flow in the radial direction, wherein the discharge flow of the bottom paddle 5, the discharge flow of the outer vertical member 7, and the discharge flow of the inner vertical member 8. .
FIG. 3C shows the strength of the upward flow in which the radial discharge flow collides with the inner wall of the stirring tank 1 and flows upward. FIG. 7 shows a flow pattern combining the radial discharge flow and the upward flow.
【０００６】前記図５の(B) 図〜(C) 図の流れを説明す
ると、撹拌槽１内に満たされた液は、ボトムパドル５に
より半径方向に吐出されて槽側壁面に衝突すると共に、
バッフル３により円運動を抑制されて槽上部へと上昇さ
せられ、槽上部の側壁側から中心側へ移動して回転軸４
および格子翼６の最上段部分の近傍から下方へ移動し、
ボトムパドル５の所へ戻る。かかる大きな循環流の中
で、ボトムパドル５より上位に配置された格子翼６の縦
材と横材により下降中の液が剪断細分化され、この細分
化された液は、縦材と横材の後側に発生する微細渦に巻
き込まれて混合され、図７に示すような渦流／混合流が
生ずる。Referring to the flow chart of FIGS. 5B to 5C, the liquid filled in the stirring tank 1 is discharged by the bottom paddle 5 in the radial direction and collides with the side wall of the tank. ,
The circular motion is suppressed by the baffle 3 and is raised to the upper part of the tank.
And moving downward from near the uppermost portion of the lattice wing 6,
Return to bottom paddle 5. In such a large circulation flow, the descending liquid is sheared and fragmented by the vertical members and the horizontal members of the lattice blades 6 disposed above the bottom paddle 5, and the divided liquid is divided into the vertical members and the horizontal members. The vortex / mixed flow as shown in FIG. 7 is generated by being entrained and mixed in the fine vortex generated on the rear side.
【０００７】この従来例Ｉによると、液深Ｈと槽内径
（直径）Ｄとの比率がＨ／Ｄ＜1.5 の低液深であり、か
つ低粘度では、液面からのガスの巻き込み量も多く、剪
断が強いために、巻き込んだガスが細分化され、非常に
大きな気液接触面積を形成し、気液反応に極めて有効な
翼形状である。According to the conventional example I, when the ratio of the liquid depth H to the inner diameter (diameter) D of the tank is a low liquid depth of H / D <1.5 and the viscosity is low, the amount of gas entrained from the liquid surface is also small. In many cases, since the shear is strong, the entrained gas is subdivided to form a very large gas-liquid contact area, and the wing shape is extremely effective for the gas-liquid reaction.
【０００８】しかし、高液深（Ｈ／Ｄ＞1.5 ）かつ高粘
度になると、ボトムパドル５の吐出力が不足するため、
上部の縦方向の格子部分で形成される吐出流と下部のボ
トムパドル５で形成された上昇流とが衝突し、上昇流が
減衰して液面上部に図５の(C) 図および図７に示す低流
動層Ｎができ、この結果、液面中心からの下降流が減少
してしまうために、一部のガスは下部の格子翼まで巻き
込まれずに上部の格子翼で吐出され、そのまま気相部へ
出るガスもあり、ガス巻き込み量が低下するという問題
があった。However, when the liquid depth is high (H / D> 1.5) and the viscosity is high, the discharge force of the bottom paddle 5 becomes insufficient.
The discharge flow formed by the upper vertical grid portion and the upward flow formed by the lower bottom paddle 5 collide with each other, and the upward flow is attenuated, and the upward flow is attenuated above the liquid level. As a result, the downward flow from the liquid surface center is reduced, so that a part of the gas is discharged from the upper lattice blade without being caught in the lower lattice blade, There is also a problem that some gas is discharged to the phase portion, and the amount of entrained gas is reduced.
【０００９】つぎに、前記従来例IIの傾斜結合翼を図６
に基づき説明する。図６の(A) 図に示すように、撹拌槽
の底部近くのボトムバドルを半径の大きい大形のパドル
翼５Ａとし、これに結合される格子翼６Ａを上方へ向け
て半径が漸減するように構成した傾斜格子翼６Ａとした
ものである。図６の(B) 図は半径方向吐出流の強さを示
しており、はボトムパドル５Ａの吐出流、は外側縦
材７Ａによる吐出流、は内側縦材８による吐出流であ
る。同(C) 図は半径方向吐出流が撹拌槽１の内壁に衝突
して上向きに流れる上昇流の強さを示している。図８は
半径方向吐出流と上昇流を総合した流動パターンを示し
ている。Next, the inclined connecting blade of the prior art II is shown in FIG.
It will be described based on. As shown in FIG. 6 (A), the bottom paddle near the bottom of the stirring tank is a large paddle blade 5A having a large radius, and the lattice blade 6A connected to the paddle blade 5A is formed so that the radius gradually decreases upward. This is the configured inclined lattice blade 6A. FIG. 6B shows the strength of the radial discharge flow, where is the discharge flow of the bottom paddle 5A, is the discharge flow of the outer vertical member 7A, and is the discharge flow of the inner vertical member 8. FIG. 3C shows the strength of the upward flow in which the radial discharge flow collides with the inner wall of the stirring tank 1 and flows upward. FIG. 8 shows a flow pattern obtained by integrating the radial discharge flow and the upward flow.
【００１０】この従来例IIでは、液深比Ｈ／Ｄが1.5 以
上のものでも大形パドル翼５Ａによる強い吐出流を確保
でき、格子翼６Ａの外側部が先細形に傾斜していること
から、槽上部に低流動層が形成されにくくなっている。
しかし、パドル翼５Ａの半径の長大化により回転数が低
下しており、格子部分での剪断が小さくなる。特に、高
粘度となりレイノイズ数が低くなると、巻き込んだガス
が細分化されにくくなり、やはり気体と液体の混合は十
分に行われ難いという問題がある。In the conventional example II, even when the liquid depth ratio H / D is 1.5 or more, a strong discharge flow can be secured by the large paddle blade 5A, and the outer portion of the lattice blade 6A is tapered and inclined. Therefore, it is difficult to form a low fluidized bed on the upper part of the tank.
However, the rotation speed is reduced due to the increase in the radius of the paddle blade 5A, and the shearing at the lattice portion is reduced. In particular, when the viscosity is high and the ray noise number is low, the entrained gas becomes difficult to be finely divided, so that there is a problem that the gas and the liquid are not sufficiently mixed.
【００１１】[0011]
【発明が解決しようとする課題】本発明は上記事情に鑑
み、ガス巻き込み量の向上を図り、気液接触面積を大幅
に増加させて気液混合を効率的に行えるようにした、竪
形撹拌装置を提供することを目的とする。SUMMARY OF THE INVENTION In view of the above circumstances, the present invention aims at improving the amount of gas entrainment and greatly increasing the gas-liquid contact area so that gas-liquid mixing can be performed efficiently. It is intended to provide a device.
【００１２】[0012]
【課題を解決するための手段】請求項１の竪形撹拌装置
は、竪形円筒形の撹拌槽の中心に槽外から回転駆動され
る回転軸を配置し、該回転軸の下部に、前記撹拌槽の底
壁面と僅かな間隔をあけて平板状のボトムパドルを装着
し、前記回転軸における前記ボトムパドルの上側に外側
縦材と内側縦材を組み合わせた格子翼を装着し、前記格
子翼の縦材の幅を上方から下方に向かって増大させてお
り、前記撹拌槽の側壁面に、上下方向にのびる複数本の
バッフルを周方向に間隔を有して固着していることを特
徴とする。請求項２の竪形撹拌装置は、前記格子翼の縦
材の内、外側の縦材の幅を上方から下方に向って増大さ
せたことを特徴とする。According to a first aspect of the present invention, there is provided a vertical stirrer, wherein a rotary shaft rotatably driven from outside the tank is disposed at the center of a vertical cylindrical stirring tank, and the rotary shaft is provided below the rotary shaft. A flat bottom paddle is mounted at a slight distance from the bottom wall surface of the stirring tank, and a lattice wing combining an outer vertical member and an inner vertical member is mounted above the bottom paddle on the rotating shaft, and the lattice wing is mounted. The width of the vertical member is increased from the upper side to the lower side, and a plurality of baffles extending in the vertical direction are fixed to the side wall surface of the stirring tank at intervals in the circumferential direction. I do. The vertical stirring device according to claim 2 is characterized in that, of the vertical members of the lattice wing, the width of the outer vertical member is increased from above to below.
【００１３】請求項１の発明によれば、格子翼の縦材は
上方が狭く、下方に向うにつれて広幅になっているの
で、格子翼の半径方向吐出流は上方から下方に向うにつ
れて強くなっている。また、撹拌翼の下端のボトムパド
ルは最も半径方向吐出流が強いので、撹拌翼全体として
みると、半径方向吐出流は上方から下方に向って強くな
っている。したがって、槽内で底部から槽内壁に沿って
上方に向う強い上昇流が得られ、しかも槽内上部の半径
方向吐出流は弱いので、上昇流との衝突が弱くなる。こ
のため、上下循環流が大きくなり、このことによって軸
中心部はより負圧となって、気液界面からガス巻き込み
量が増加し気液混合が効率よく行われる。請求項２の発
明によれば、軸心から遠く離れた格子翼の外側の縦材を
上方が狭く、下方に向くにつれて広幅にしているので、
広幅の部分の半径方向吐出流が強くなる。このため、上
下循環流が大きくなり、このことによって軸中心部はよ
り負圧となって、気液界面からガス巻き込み量が増加し
気液混合が効率よく行われる。According to the first aspect of the present invention, since the vertical members of the lattice blades are narrower at the upper part and wider at the lower part, the radial discharge flow of the lattice blades becomes stronger from the upper part to the lower part. I have. Further, the bottom paddle at the lower end of the stirring blade has the strongest radial discharge flow, so that the radial discharge flow becomes stronger from the upper side to the lower side as a whole of the stirring blade. Therefore, a strong upward flow from the bottom to the upper side along the inner wall of the tank is obtained, and the radial discharge flow in the upper part in the tank is weak, so that the collision with the upward flow is weak. For this reason, the vertical circulating flow becomes large, and thereby the center of the shaft becomes more negative pressure, the amount of gas involved from the gas-liquid interface increases, and gas-liquid mixing is performed efficiently. According to the second aspect of the present invention, the vertical members outside the lattice wing far away from the axis are narrower at the upper side and wider at the lower side.
The radial discharge flow in the wide portion becomes stronger. For this reason, the vertical circulating flow becomes large, and thereby the center of the shaft becomes more negative pressure, the amount of gas involved from the gas-liquid interface increases, and gas-liquid mixing is performed efficiently.
【００１４】[0014]
【発明の実施の形態】つぎに、本発明の実施形態を図面
に基づき説明する。図１は本発明の一実施形態に係る竪
形撹拌装置の縦断面図、図２の(A) 図は本発明の竪形撹
拌装置の概略縦断面図、同(B) 図は半径方向吐出流の説
明図、同(C) 図は上昇流の説明図、図３は図１の竪形撹
拌装置における液体の流動パターンの説明図である。Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a vertical sectional view of a vertical stirring device according to an embodiment of the present invention, FIG. 2A is a schematic vertical sectional view of the vertical stirring device of the present invention, and FIG. FIG. 3 (C) is an explanatory view of an upward flow, and FIG. 3 is an explanatory view of a liquid flow pattern in the vertical stirring device of FIG. 1.
【００１５】図１において、１は円筒形の撹拌槽であ
り、この中心に回転軸４が上下に延びるように設けられ
ている。回転軸４の上方には、図示しない駆動モータ等
が連結され、回転軸４の下端は図示しない軸受で回転自
在に支持されている。また、撹拌槽１の内壁には複数本
のバッフル３が取付けられている。このバッフル３は、
流体の水平面内での旋回を止め、半径方向の吐出流を上
昇流に変換するためのものである。In FIG. 1, reference numeral 1 denotes a cylindrical stirring tank, on which a rotating shaft 4 is provided so as to extend vertically. A drive motor or the like (not shown) is connected above the rotary shaft 4, and a lower end of the rotary shaft 4 is rotatably supported by a bearing (not shown). A plurality of baffles 3 are attached to the inner wall of the stirring tank 1. This baffle 3
This is for stopping the swirling of the fluid in the horizontal plane and converting the radial discharge flow into an upward flow.
【００１６】前記回転軸４には、撹拌翼２が取付けられ
ており、この撹拌翼２はボトムパドル５と格子翼６とか
ら構成されている。ボトムパドル５は槽底壁との間にわ
ずかの隙間をあけて、回転軸４の下部に取付けられた板
状の翼である。格子翼６は前記ボトムパドル５と同一半
径を有し、ボトムパドル５の上方において回転軸４に取
付けられている。そして、格子翼６の翼径は、上下方向
において同じである。A stirring blade 2 is mounted on the rotating shaft 4, and the stirring blade 2 includes a bottom paddle 5 and a lattice blade 6. The bottom paddle 5 is a plate-like wing attached to a lower portion of the rotating shaft 4 with a small gap between the bottom paddle 5 and the bottom wall. The lattice blade 6 has the same radius as the bottom paddle 5 and is attached to the rotating shaft 4 above the bottom paddle 5. The blade diameter of the lattice blade 6 is the same in the vertical direction.
【００１７】この格子翼６は、一対の外側縦材７と一対
の内側縦材８を有し、これらを結合する複数本の横材９
とから構成されている。図示の例では、横材９を上端に
のみ１本設けているが、格子翼６の上端と下端の間に適
数本の横材を組合せてもよい。The lattice blade 6 has a pair of outer vertical members 7 and a pair of inner vertical members 8, and a plurality of cross members 9 connecting these members.
It is composed of In the illustrated example, one cross member 9 is provided only at the upper end, but an appropriate number of cross members may be combined between the upper end and the lower end of the lattice blade 6.
【００１８】前記内側縦材８は上下にわたって同じ幅で
あるが、前記外側縦材７は、上端から下端に向うにつれ
て広幅となるように連続的に変化しており、この点に本
実施形態の特徴がある。While the inner vertical member 8 has the same width in the vertical direction, the outer vertical member 7 continuously changes so as to increase in width from the upper end to the lower end. There are features.
【００１９】上記の竪形撹拌装置では、図２の(B) 図に
示すように、半径方向の吐出量、すなわち、ボトムパド
ル５の吐出流、内側縦材８の吐出流は図７の従来例
Ｉと同様であるが、つぎの特徴がある。すなわち、格子
翼６外側縦材７の吐出流は、上方が弱く、下方に向う
につれて連続的に強くなっている。この結果、撹拌翼２
の下方に強い半径方向吐出流が得られ、それが槽内壁に
衝突して強い上昇流となり、一方では格子翼６の上方の
半径方向吐出流は弱いので、上昇流との衝突も弱くな
る。このため、同図(C) に示すように、上方に向って連
続的に減少するが下方で非常に強い上昇流が発生し、図
３に示すよう上下循環流が大きくなる。In the above vertical stirring device, as shown in FIG. 2B, the discharge amount in the radial direction, that is, the discharge flow of the bottom paddle 5 and the discharge flow of the inner vertical member 8 are the same as those shown in FIG. Same as Example I, but with the following characteristics. That is, the discharge flow of the outer longitudinal member 7 of the lattice blade 6 is weak at the upper part and continuously increased as it goes downward. As a result, the stirring blade 2
Below, a strong radial discharge flow is obtained, which collides with the inner wall of the tank and becomes a strong upward flow, while the radial discharge flow above the lattice blade 6 is weak, so that the collision with the upward flow is also weak. As a result, as shown in FIG. 3C, the flow continuously decreases upward, but a very strong upward flow occurs below, and the vertical circulation flow increases as shown in FIG.
【００２０】上記の理由により、軸中心部はより負圧の
程度が高くなり、気液界面からのガス差込み量が増加す
るので、気液混合が効率よく行える。さらに、格子翼６
を構成する縦材７．８や横材９により、液を剪断細分化
することができるので、気体を微細渦に巻き込みやすく
なる。よって、槽内径（直径）Ｄと液深Ｈの比が、高液
深（H/D>1.5 ）であり、かつ高粘度であっても、効率よ
く気液混合することができる。なお、内側縦材８を外側
縦材７と同様に上端から下端に向けて広幅とした場合、
外側縦材ほどの効果はないが半径方向吐出流を変化させ
ることはでき、上記に準ずる気液混合効果を奏すること
ができる。For the above reasons, the degree of negative pressure is higher at the center of the shaft, and the amount of gas inserted from the gas-liquid interface increases, so that gas-liquid mixing can be performed efficiently. Further, the lattice wing 6
The liquid can be sheared and finely divided by the vertical member 7.8 and the horizontal member 9 constituting, so that the gas can be easily entrained in the fine vortex. Therefore, even if the ratio between the tank inner diameter (diameter) D and the liquid depth H is high (H / D> 1.5) and high in viscosity, gas-liquid mixing can be performed efficiently. When the inner vertical member 8 is widened from the upper end to the lower end similarly to the outer vertical member 7,
Although not as effective as the outer longitudinal members, the radial discharge flow can be changed, and a gas-liquid mixing effect equivalent to the above can be achieved.
【００２１】[0021]
【発明の効果】請求項１の発明によれば、格子翼の半径
方向吐出流は上方から下方に向うにつれて強くなってい
るので、槽内で底部から槽内壁に沿って上方に向う強い
上昇流が得られ、しかも槽内上部の半径方向吐出流は弱
いので、上昇流との衝突が弱くなる。このため、上下循
環流が大きくなり、このことによって軸中心部はより負
圧となって、気液界面からガス巻き込み量が増加し気液
混合が効率よく行われる。よって、高液深かつ高粘度で
あっても、効率の良い気液混合が行える。請求項２の発
明によれば、軸心から遠く離れた格子翼の外側の縦材を
上方が狭く、下方に向くにつれて広幅にしているので、
広幅の部分の半径方向吐出流が強くなる。このため、上
下循環流が大きくなり、このことによって軸中心部はよ
り負圧となって、気液界面からガス巻き込み量が増加し
気液混合が効率よく行われる。According to the first aspect of the present invention, since the radial discharge flow of the lattice blades becomes stronger from the upper side to the lower side, a strong upward flow from the bottom to the upper side along the tank inner wall in the tank. And the radial discharge flow in the upper part of the tank is weak, so that the collision with the upward flow is weak. For this reason, the vertical circulating flow becomes large, and thereby the center of the shaft becomes more negative pressure, the amount of gas involved from the gas-liquid interface increases, and gas-liquid mixing is performed efficiently. Therefore, efficient gas-liquid mixing can be performed even at a high liquid depth and high viscosity. According to the second aspect of the present invention, the vertical members outside the lattice wing far away from the axis are narrower in the upper part and wider in the downward direction.
The radial discharge flow in the wide portion becomes stronger. For this reason, the vertical circulating flow becomes large, and thereby the center of the shaft becomes more negative pressure, the amount of gas involved from the gas-liquid interface increases, and gas-liquid mixing is performed efficiently.
【図１】本発明の一実施形態に係る竪形撹拌装置の縦断
面図である。FIG. 1 is a vertical sectional view of a vertical stirring device according to an embodiment of the present invention.
【図２】(A) 図は図１の竪形撹拌装置の概略縦断面図、
(B) 図は半径方向吐出流の説明図、(C) 図は上昇流の説
明図である。FIG. 2 (A) is a schematic longitudinal sectional view of the vertical stirring device of FIG. 1,
(B) is an explanatory diagram of the radial discharge flow, and (C) is an explanatory diagram of the upward flow.
【図３】図１の竪形撹拌装置における液体の流動パター
ンの説明図である。FIG. 3 is an explanatory diagram of a flow pattern of a liquid in the vertical stirring device of FIG.
【図４】従来の撹拌装置の縦断面図である。FIG. 4 is a longitudinal sectional view of a conventional stirring device.
【図５】(A) 図は従来例Ｉの撹拌装置の縦断面図、(B)
図は半径方向吐出流の説明図、(C) 図は上昇流の説明図
である。FIG. 5 (A) is a longitudinal sectional view of a stirring device of Conventional Example I, and FIG.
The figure is an explanatory view of the radial discharge flow, and the figure (C) is an explanatory view of the upward flow.
【図６】(A) 図は従来例IIの撹拌装置の縦断面図、(B)
図は半径方向吐出流の説明図、(C) 図は上昇流の説明図
である。FIG. 6 (A) is a longitudinal sectional view of a stirrer of Conventional Example II, and FIG.
The figure is an explanatory view of the radial discharge flow, and the figure (C) is an explanatory view of the upward flow.
【図７】従来例Ｉにおける流動パターンの説明図であ
る。FIG. 7 is an explanatory diagram of a flow pattern in Conventional Example I.
【図８】従来例IIにおける流動パターンの説明図であ
る。FIG. 8 is an explanatory diagram of a flow pattern in Conventional Example II.
１ 撹拌槽 ２ 撹拌翼 ４ 回転軸 ５ ボトムパドル ６ 格子翼 ７ 外側縦材 ８ 内側縦材 DESCRIPTION OF SYMBOLS 1 Stirring tank 2 Stirrer blade 4 Rotary axis 5 Bottom paddle 6 Lattice blade 7 Outer vertical member 8 Inner vertical member
Claims (2)
駆動される回転軸を配置し、該回転軸の下部に、前記撹
拌槽の底壁面と僅かな間隔をあけて平板状のボトムパド
ルを装着し、前記回転軸における前記ボトムパドルの上
側に外側縦材と内側縦材を組み合わせた格子翼を装着
し、前記格子翼の縦材の幅を上方から下方に向かって増
大させており、前記撹拌槽の側壁面に、上下方向にのび
る複数本のバッフルを周方向に間隔を有して固着してい
ることを特徴とする竪形撹拌装置。1. A rotating shaft that is driven to rotate from outside the tank is disposed at the center of a vertical cylindrical stirring tank, and a flat plate is formed below the rotating shaft at a slight distance from the bottom wall surface of the stirring tank. The bottom paddle is attached, and a lattice wing combining an outer longitudinal member and an inner longitudinal member is attached above the bottom paddle on the rotation axis, and the width of the longitudinal member of the lattice wing is increased from above to below. A vertical stirrer comprising a plurality of baffles extending in a vertical direction fixed to a side wall surface of the stirring tank at intervals in a circumferential direction.
上方から下方に向って増大させたことを特徴とする請求
項１記載の竪形撹拌装置。2. The vertical stirrer according to claim 1, wherein the width of the outer vertical members of the vertical members of the lattice blade is increased from above to below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9227798A JPH11267485A (en) | 1998-03-20 | 1998-03-20 | Vertical agitator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9227798A JPH11267485A (en) | 1998-03-20 | 1998-03-20 | Vertical agitator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11267485A true JPH11267485A (en) | 1999-10-05 |
Family
ID=14049918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9227798A Pending JPH11267485A (en) | 1998-03-20 | 1998-03-20 | Vertical agitator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11267485A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002282667A (en) * | 2001-03-28 | 2002-10-02 | Nagase Kasei Kogyo Kk | Stirring apparatus |
| JP2007203163A (en) * | 2006-01-31 | 2007-08-16 | Nitto Denko Corp | Stirrer |
| JP2008012452A (en) * | 2006-07-06 | 2008-01-24 | Nitto Denko Corp | Agitator |
| WO2009040886A1 (en) * | 2007-09-25 | 2009-04-02 | Shi Mechanical & Equipment Inc. | Agitating apparatus |
| CN111107917A (en) * | 2017-09-21 | 2020-05-05 | 惠斯勒科技公司 | Apparatus and method for resin extraction |
-
1998
- 1998-03-20 JP JP9227798A patent/JPH11267485A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002282667A (en) * | 2001-03-28 | 2002-10-02 | Nagase Kasei Kogyo Kk | Stirring apparatus |
| JP2007203163A (en) * | 2006-01-31 | 2007-08-16 | Nitto Denko Corp | Stirrer |
| JP2008012452A (en) * | 2006-07-06 | 2008-01-24 | Nitto Denko Corp | Agitator |
| WO2009040886A1 (en) * | 2007-09-25 | 2009-04-02 | Shi Mechanical & Equipment Inc. | Agitating apparatus |
| CN111107917A (en) * | 2017-09-21 | 2020-05-05 | 惠斯勒科技公司 | Apparatus and method for resin extraction |
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