JP2015096251A - Stirring device - Google Patents

Stirring device Download PDF

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JP2015096251A
JP2015096251A JP2013237025A JP2013237025A JP2015096251A JP 2015096251 A JP2015096251 A JP 2015096251A JP 2013237025 A JP2013237025 A JP 2013237025A JP 2013237025 A JP2013237025 A JP 2013237025A JP 2015096251 A JP2015096251 A JP 2015096251A
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stirring
gas
solid
stirring tank
stirring device
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JP6251547B2 (en
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好一 加藤
Koichi Kato
好一 加藤
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Satake Chemical Equipment Mfg Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a stirring device suitable for multiphase-system stirring of a solid-liquid system, a gas-liquid system and a gas-solid-liquid system.SOLUTION: A stirring device includes a bottom impeller 4 that is fixed to a lower end of a rotating shaft 3 suspended within a stirring vessel 2 and the lower side 4c of which is close to an inner bottom surface 2a of the stirring vessel 2, and a bottom stator blade 5 that is fixed within the stirring vessel 2 and that has an inner side 5a in a near position in an outward direction of a rotational locus of an outer side 4b of the bottom impeller 4.

Description

本発明は、固液系や気液系や気固液系の混相系撹拌に好適な撹拌装置に関する。   The present invention relates to a stirring device suitable for solid-liquid, gas-liquid, and gas-solid-liquid mixed phase stirring.

一般的な従来の撹拌装置の例１として、例えば、図９に示す如く、撹拌槽ａ内の中心部に垂下した回転軸ｂの下端に軸流式の撹拌翼ｃを設けると共に、該撹拌槽ａの内周面に上下方向に延びるバッフルｄを設けたものがある（非特許文献１参照）。   As an example of a general conventional stirring device, for example, as shown in FIG. 9, an axial flow type stirring blade c is provided at the lower end of a rotating shaft b suspended at the center of the stirring tank a, and the stirring tank Some have a baffle d extending in the vertical direction on the inner peripheral surface of a (see Non-Patent Document 1).

また、固体やスラリーの濃度が高い場合や、低速でゆっくりと固体の分散を行う場合の従来の撹拌装置の例２として、図１０に示す如く、撹拌槽ｅ内の中心部に垂下した回転軸ｆに大型広幅翼ｇを設けると共に、該撹拌槽ｅの内周面に上下方向に延びるバッフルｈを設けたものがある。   Further, as a second example of a conventional stirring device when the concentration of solid or slurry is high or when the solid is slowly dispersed at a low speed, as shown in FIG. Some of them have a large wide blade g at f and a baffle h extending in the vertical direction on the inner peripheral surface of the stirring tank e.

また、気液系を混合する従来の撹拌装置の例３としては、例えば、図１１に示す如く、撹拌槽ｉ内の中心部に垂下した回転軸ｊの下端に輻流式の撹拌翼ｋを設けると共に、該撹拌槽ｉ内の回転軸ｊの下端真下に気体吐出口を配置した通気管ｌを設け、さらに、前記撹拌槽ｉの内周面に上下方向に延びるバッフルｍを設けたものがある。   Further, as an example 3 of a conventional stirring device for mixing a gas-liquid system, for example, as shown in FIG. 11, a radial stirring blade k is provided at the lower end of a rotating shaft j that hangs down at the center of the stirring tank i. In addition, a vent pipe 1 having a gas discharge port disposed just below the lower end of the rotating shaft j in the stirring tank i is provided, and a baffle m extending in the vertical direction is provided on the inner peripheral surface of the stirring tank i. is there.

財団法人日本機械学会著「機械工学便覧 Ｃ．エンジニアリング編」（Ｃ１−４３頁図２−４７）丸善株式会社出版１９８９年"Mechanical Engineering Handbook C. Engineering" by the Japan Society of Mechanical Engineers (C1-43, Figure 2-47) Maruzen Publishing Co., Ltd. 1989

前記従来の撹拌装置の例１は、軸流の撹拌翼を設置し、撹拌槽ａ内で上下対流を発生させて、撹拌や混合作用を促進させるが、スラリーなどの固液系の撹拌の場合、前記撹拌槽ａの底部の中央部Ａの流動性が悪くデッドゾーンとなり、固体部分が停滞してしまい、好適な撹拌をすることができないという欠点があった。   In Example 1 of the conventional stirring device, an axial flow stirring blade is installed and vertical convection is generated in the stirring tank a to promote stirring and mixing action. In the case of solid-liquid stirring such as slurry, The fluidity of the central part A at the bottom of the agitation tank a is poor and a dead zone is formed, and the solid part is stagnated, which makes it impossible to perform suitable agitation.

また、気液系の撹拌の場合、気泡の分散作用が不十分であるという問題があった。   Further, in the case of gas-liquid stirring, there is a problem that the dispersing action of bubbles is insufficient.

また、前記従来の撹拌装置の例２は、ガス吸収が要求される場合、その吸収効率が悪く、結果として多大な動力が必要で経済性が悪かった。   In addition, Example 2 of the conventional stirring device has poor absorption efficiency when gas absorption is required, and as a result, a large amount of power is required and the economy is poor.

また、前記従来の撹拌装置の例３は、通気流量が多くなると気泡の分散能力が低下し、また、流動作用が低下するという問題があった。   In addition, Example 3 of the conventional stirring device has a problem that when the aeration flow rate is increased, the ability to disperse bubbles is lowered and the flow action is also lowered.

また、砂やスラリーなどの固体を流動させることが難しく、固液系や気固液系の撹拌には適していなかった。   In addition, it is difficult to flow solids such as sand and slurry, which is not suitable for stirring in a solid-liquid system or a gas-solid-liquid system.

本発明はこれらの問題点を解消し、固液系や気液系や固気液系の混相系を好適に撹拌できるようにしたものである。   The present invention solves these problems, and can suitably stir a solid-liquid system, a gas-liquid system, or a mixed phase system of a solid-gas-liquid system.

前記の目的を達成すべく、本発明は撹拌槽内に垂下した回転軸の下端に固定した、下側辺が前記撹拌槽の内底面に近接したボトムインペラと、前記撹拌槽内に固定した、該ボトムインペラの外側辺の回転軌跡の外方の近傍位置に内側辺を有する底部静翼とよりなる。   In order to achieve the above object, the present invention is fixed to the lower end of the rotating shaft suspended in the stirring tank, the bottom side is fixed to the inner bottom surface of the stirring tank, and fixed to the stirring tank. The bottom impeller includes a bottom stationary blade having an inner side at a position near the outer side of the rotation trajectory of the outer side of the bottom impeller.

本発明によれば、固液系や気液系や気固液系における固体、気体の分散作用を飛躍的に向上できるようになる。   ADVANTAGE OF THE INVENTION According to this invention, the solid and gas dispersion | distribution effect | action in a solid-liquid system, a gas-liquid system, or a gas-solid-liquid system can be improved significantly.

本発明の実施例１の撹拌装置の縦断面図である。It is a longitudinal cross-sectional view of the stirring apparatus of Example 1 of this invention. 図１のII−II線截断面図である。FIG. 2 is a cross-sectional view taken along line II-II in FIG. 1. 実施例１の撹拌装置の変形例の縦断面図である。It is a longitudinal cross-sectional view of the modification of the stirring apparatus of Example 1. 本発明の実施例２の撹拌装置の縦断面図である。It is a longitudinal cross-sectional view of the stirring apparatus of Example 2 of this invention. 実施例２の撹拌装置の変形例１の縦断面図である。FIG. 6 is a longitudinal sectional view of a first modification of the stirring device according to the second embodiment. 実施例２の撹拌装置の変形例２の縦断面図である。It is a longitudinal cross-sectional view of the modification 2 of the stirring apparatus of Example 2. 図６のVII−VII線截断面図である。FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. 6. 実施例２の撹拌装置の変形例３の縦断面図である。It is a longitudinal cross-sectional view of the modification 3 of the stirring apparatus of Example 2. 従来の撹拌装置の例１の縦断面図である。It is a longitudinal cross-sectional view of Example 1 of the conventional stirring apparatus. 従来の撹拌装置の例１の縦断面図である。It is a longitudinal cross-sectional view of Example 1 of the conventional stirring apparatus. 従来の撹拌装置の例１の縦断面図である。It is a longitudinal cross-sectional view of Example 1 of the conventional stirring apparatus.

本発明を実施するための形態の実施例を以下に示す。   The example of the form for carrying out the present invention is shown below.

本発明の実施例１を図１及び図２によって説明する。   A first embodiment of the present invention will be described with reference to FIGS.

図１は本発明の実施例１の撹拌装置の縦断面説明図であり、図２は、図１のII−II線截断面図である。   FIG. 1 is a longitudinal cross-sectional explanatory view of the stirring apparatus of Example 1 of the present invention, and FIG. 2 is a cross-sectional view taken along the line II-II in FIG.

１は、本実施例１の撹拌装置、２は該撹拌装置１の撹拌槽を示し、該撹拌槽２は、円筒状でその内底面２ａが下方に向かって湾曲状に形成されている。そして、該撹拌槽２内の中央部に回転軸３が該撹拌槽２の内底部まで垂下して設けられ、該回転軸３の下端部に、例えば４枚のボトムインペラ４が固定されている。   Reference numeral 1 denotes a stirring device according to the first embodiment, and 2 denotes a stirring tank of the stirring device 1. The stirring tank 2 is cylindrical and has an inner bottom surface 2a that is curved downward. A rotating shaft 3 is provided at the center of the stirring tank 2 so as to hang down to the inner bottom of the stirring tank 2. For example, four bottom impellers 4 are fixed to the lower end of the rotating shaft 3. .

該ボトムインペラ４は、前記回転軸３に近接する根部側の内側辺４ａの上下方向の幅が大で外方先端側の外側辺４ｂに向うに従って該幅が徐々に小となり、該外側辺４ｂが上下方向に延びると共に、前記撹拌槽２の内底面２ａに近接する下側辺４ｃが、該内底面２ａにそって湾曲状に形成される略台形の板状体より形成される。   The bottom impeller 4 has a large width in the vertical direction of the inner side 4a on the root side adjacent to the rotating shaft 3, and the width gradually decreases toward the outer side 4b on the outer tip side, and the outer side 4b And the lower side 4c close to the inner bottom surface 2a of the agitation tank 2 is formed of a substantially trapezoidal plate-like body formed in a curved shape along the inner bottom surface 2a.

５は、底部静翼を示し、該底部静翼５は、前記ボトムインペラ４の外側辺４ｂの回転軌跡の外方の近傍位置の前記撹拌槽２の内底面２ａに放射状に固定した、例えば４枚の略直角三角形状の板状の邪魔板からなり、前記ボトムインペラ４の外側辺４ｂが、該底部静翼５の上下方向に延びる内側辺５ａに近接して通過するようにした。   Reference numeral 5 denotes a bottom stationary blade, and the bottom stationary blade 5 is radially fixed to the inner bottom surface 2a of the agitation tank 2 at a position near the outside of the rotation locus of the outer side 4b of the bottom impeller 4, for example, 4 The bottom impeller 4 is composed of a substantially right triangular plate-shaped baffle plate, and the outer side 4b of the bottom impeller 4 passes in the vicinity of the inner side 5a extending in the vertical direction of the bottom stationary blade 5.

次に本実施例の撹拌装置１の作用と効果を説明する。   Next, the operation and effect of the stirring device 1 of the present embodiment will be described.

撹拌すべきスラリーなどの固液を前記撹拌槽２内に所定のレベルまで満たした後、前記回転軸３により前記ボトムインペラ４を回転する。   After the solid liquid such as slurry to be stirred is filled to a predetermined level in the stirring tank 2, the bottom impeller 4 is rotated by the rotating shaft 3.

該ボトムインペラ４の回転に伴って、該スラリーは、該撹拌槽２内の下方部で旋回流を生ずる。そして、該スラリーは、前記底部静翼５に至ると、該底部静翼５の内側辺５ａに近接して通過するボトムインペラ４の外周辺４ｂにより、前記底部静翼５により前記旋回流が半径方向への吐出流へと変換され、撹拌槽２の内周面に沿った上方流となり、上方部に至ると該撹拌槽２の中心部に向かう流れとなる。そして、液体は該撹拌槽２の中心部において下方への流れとなって循環流を形成する。   As the bottom impeller 4 rotates, the slurry generates a swirling flow in the lower part of the stirring tank 2. Then, when the slurry reaches the bottom stationary blade 5, the swirl flow is radiused by the bottom stationary blade 5 by the outer periphery 4 b of the bottom impeller 4 that passes close to the inner side 5 a of the bottom stationary blade 5. It is converted into a discharge flow in the direction and becomes an upward flow along the inner peripheral surface of the stirring tank 2, and when it reaches the upper part, it becomes a flow toward the center of the stirring tank 2. The liquid then flows downward in the central portion of the stirring tank 2 to form a circulating flow.

本実施例の撹拌装置によれば、前述の如く、撹拌槽２内に循環流を形成すると共に、底部において、前記底部静翼５の内側辺５ａと前記ボトムインペラ４の外側辺４ｂとの間で生ずる強力な半径方向への吐出作用により、スラリーを撹拌できるという効果を有し、固液系における分散均一性の向上や、同時に生じる強力なせん断力により、気液系における分散作用を飛躍的に向上できるようになった。   According to the stirring device of the present embodiment, as described above, a circulating flow is formed in the stirring tank 2 and at the bottom, between the inner side 5a of the bottom stationary blade 5 and the outer side 4b of the bottom impeller 4. It has the effect that the slurry can be stirred by the powerful radial discharge action that occurs in the process, and the dispersion action in the gas-liquid system is dramatically improved by the improvement of dispersion uniformity in the solid-liquid system and the simultaneously generated strong shearing force. Can now be improved.

なお、図３の実施例１の変形例に示すように、撹拌槽２が深底のタイプや大型の場合や、気相部からのガス吸収を目的としたり、軽い紛体や固形物を溶解したり分解したりする場合には、前記撹拌装置１に、更に、前記撹拌槽２内の内周面２ｂに上下に延びる内周面バッフル６と、前記回転軸３の上部に下方流を形成させる軸流式の補助撹拌翼７を設ける。   In addition, as shown in the modification of Example 1 of FIG. 3, when the stirring tank 2 is a deep bottom type or large-sized, or for the purpose of gas absorption from the gas phase part, or dissolves a light powder or solid matter. In the case of disassembling or disassembling, the stirring device 1 is further caused to form a downward flow on the inner peripheral surface baffle 6 extending vertically on the inner peripheral surface 2b in the stirring tank 2 and the upper portion of the rotating shaft 3. An axial flow type auxiliary stirring blade 7 is provided.

この実施例においては、撹拌槽２が深底のタイプや大型の場合や、気相部からのガス吸収を目的としたり、軽い紛体や固形物を溶解したり分解したりする場合であっても、前記補助撹拌翼７と前記内周面バッフル６とにより、槽２内の上部において、軽い紛体や固形物を下方に送る下方流を作り出すことができるので、槽内全体に循環流を形成することができ、また、底部において、前記底部静翼５の内側辺５ａと前記ボトムインペラ４の外側辺４ｂとの間で生ずる強力なせん断力により撹拌でき、低動力を達成することができるようになる。   In this embodiment, even when the agitation tank 2 is of a deep bottom type or large size, for the purpose of gas absorption from the gas phase part, or when dissolving or decomposing light powder or solid matter. Since the auxiliary stirring blade 7 and the inner peripheral surface baffle 6 can create a downward flow that sends light powder and solids downward in the upper portion of the tank 2, a circulating flow is formed in the entire tank. Further, at the bottom, stirring can be performed by a strong shearing force generated between the inner side 5a of the bottom stationary blade 5 and the outer side 4b of the bottom impeller 4, so that low power can be achieved. Become.

本発明の実施例２を図４によって説明する。   A second embodiment of the present invention will be described with reference to FIG.

図４は本発明の実施例２の撹拌装置８の縦断面図である。   FIG. 4 is a longitudinal sectional view of the stirring device 8 according to the second embodiment of the present invention.

本実施例２の撹拌装置８においては、前記実施例１の撹拌装置１の前記撹拌槽２の内底面２ａの中心部に気体吐出口９を設けると共に、該気体吐出口９に通気管１０を連通する。   In the stirring device 8 of the second embodiment, a gas discharge port 9 is provided at the center of the inner bottom surface 2a of the stirring tank 2 of the stirring device 1 of the first embodiment, and a vent pipe 10 is provided in the gas discharge port 9. Communicate.

この実施例２の撹拌装置８の作用と効果を説明する。   The operation and effect of the stirring device 8 of the second embodiment will be described.

気液系の撹拌の場合においては、液体を前記撹拌槽２内に所定のレベルまで満たした後、前記通気管１０から気体を撹拌槽２内に吐出すると共に、前記回転軸３により前記ボトムインペラ４を回転する。   In the case of gas-liquid stirring, after the liquid is filled into the stirring tank 2 to a predetermined level, gas is discharged from the vent pipe 10 into the stirring tank 2 and the bottom impeller is driven by the rotary shaft 3. Rotate 4

該ボトムインペラ４の回転に伴って、液体は、前記実施例１の撹拌装置１で説明したように、前記撹拌槽２内において循環流を形成し、そして、前記気体排出口９から撹拌槽２内に吐出された気体は、前記底部静翼５の内側辺５ａと前記ボトムインペラ４の外側辺４ｂとの間に引き込まれ、これら底部静翼５の内側辺５ａと前記ボトムインペラ４の外側辺４ｂとの間で生ずる強力なせん断力により、拡散され、効率良くガス分散が行われ、高いガス吸収性能を発揮するようになる。   As the bottom impeller 4 rotates, the liquid forms a circulating flow in the agitation tank 2 as described in the agitation device 1 of the first embodiment, and the agitation tank 2 is supplied from the gas discharge port 9. The gas discharged into the inside is drawn between the inner side 5 a of the bottom stationary blade 5 and the outer side 4 b of the bottom impeller 4, and the inner side 5 a of the bottom stationary blade 5 and the outer side of the bottom impeller 4. Due to the strong shearing force generated with 4b, the gas is diffused and gas is efficiently dispersed, and high gas absorption performance is exhibited.

また、気固液系の撹拌の場合においては、撹拌すべきスラリーなどの固液を前記撹拌槽２内に所定のレベルまで満たした後、前記通気管１０から気体を撹拌槽２内に吐出すると共に、前記回転軸３により前記ボトムインペラ４を回転する。   In the case of gas-solid liquid agitation, after the solid liquid such as slurry to be agitated is filled in the agitation tank 2 to a predetermined level, the gas is discharged from the aeration tube 10 into the agitation tank 2. At the same time, the bottom impeller 4 is rotated by the rotating shaft 3.

該ボトムインペラ４の回転に伴って、スラリーは、前記実施例１の撹拌装置１で説明したように、前記撹拌槽２内において循環流を形成すると共に、底部において、前記底部静翼５の内側辺５ａと前記ボトムインペラ４の外側辺４ｂとの間で生ずる強力な吐出流により、スラリーを撹拌し、更に、前記気体排出口９から撹拌槽２内に吐出された気体は、前記底部静翼５の内側辺５ａと前記ボトムインペラ４の外側辺４ｂとの間に引き込まれ、これら底部静翼５の内側辺５ａとボトムインペラ４の外側辺４ｂとの間で生ずる強力なせん断力により、拡散され、効率良くガス分散が行われ、高いガス吸収性能を発揮するようになる。   As the bottom impeller 4 rotates, the slurry forms a circulating flow in the agitation tank 2 as described in the agitation device 1 of the first embodiment, and at the bottom, inside the bottom stationary blade 5. The slurry is stirred by a powerful discharge flow generated between the side 5a and the outer side 4b of the bottom impeller 4, and the gas discharged from the gas discharge port 9 into the stirring tank 2 is the bottom stationary blade. 5 is pulled between the inner side 5a of the bottom impeller 4 and the outer side 4b of the bottom impeller 4, and is diffused by a strong shearing force generated between the inner side 5a of the bottom stationary blade 5 and the outer side 4b of the bottom impeller 4. As a result, gas is dispersed efficiently and high gas absorption performance is exhibited.

このように、本実施例２の撹拌装置８によれば、気液系や気固液系における分散作用を飛躍的に向上できるようになる。   Thus, according to the stirring device 8 of the second embodiment, the dispersion action in the gas-liquid system or the gas-solid-liquid system can be dramatically improved.

特に、気固液系の撹拌において、比重の高い固体（スラリー）が混在する撹拌条件においても、優れた固体の流動作用と、ガス吸収作用の両効果を得ることができるようになる。   In particular, in gas-solid liquid agitation, both of the excellent solid fluidizing action and gas absorption effect can be obtained even under agitation conditions in which a solid (slurry) having a high specific gravity is mixed.

なお、図５の実施例２の変形例１に示すように、撹拌槽２が深底のタイプや大型の場合には、前記ボトムインペラ４の上端に幅広の板状の翼１１を連設して、これらボトムインペラ４と翼１１とにより形成された大型広幅翼１２により混相系を撹拌するようにしてもよい。   As shown in Modification 1 of Example 2 in FIG. 5, when the stirring tank 2 is a deep bottom type or a large size, a wide plate-like blade 11 is connected to the upper end of the bottom impeller 4. Then, the mixed phase system may be agitated by the large wide blade 12 formed by the bottom impeller 4 and the blade 11.

この実施例２の変形例１においても、固液系や気液系や気固液系における固体、気体の分散作用を飛躍的に向上できるようになる。   Also in the first modification of the second embodiment, the solid and gas dispersion action in the solid-liquid system, the gas-liquid system, and the gas-solid-liquid system can be dramatically improved.

なお、図６及び図７の実施例２の変形例２に示すように、前記撹拌槽２の内底面２ａの中央部に気体吐出口９を設け、この吐出口９に通気管１０を連通する代わりに、前記底部静翼５の内側辺５ａ付近に気体吐出口を設けるために、例えば、撹拌槽２内に、前記各底部静翼５の内方部を貫通して環状管１３を設けると共に、該環状管１３の前記各底部静翼５付近にそれぞれ吐出口１３ａを設け、これら吐出口１３ａから気体を撹拌槽２内に通気するようにしてもよい。   6 and 7, a gas discharge port 9 is provided at the center of the inner bottom surface 2a of the agitation tank 2, and a vent pipe 10 is communicated with the discharge port 9. Instead, in order to provide a gas discharge port in the vicinity of the inner side 5a of the bottom stationary blade 5, for example, in the stirring tank 2, an annular tube 13 is provided through the inner portion of each bottom stationary blade 5. Alternatively, a discharge port 13a may be provided in the vicinity of each bottom stationary blade 5 of the annular tube 13, and gas may be vented into the stirring tank 2 from these discharge ports 13a.

なお、該環状管１３には通気管（図示せず）が連通している。   The annular pipe 13 communicates with a vent pipe (not shown).

この実施例２の変形例２においても、固液系や気液系や気固液系における固体、気体の分散作用を飛躍的に向上できるようになる。   Also in the second modification of the second embodiment, the solid and gas dispersion action in the solid-liquid system, the gas-liquid system, and the gas-solid-liquid system can be dramatically improved.

なお、前記環状管１３を設ける代わりに、各底部静翼５の内側辺５ａ付近に気体吐出口を有する通気管をそれぞれ設けてもよい（図示せず）。   Instead of providing the annular pipe 13, a vent pipe having a gas discharge port may be provided in the vicinity of the inner side 5 a of each bottom stationary blade 5 (not shown).

なお、通気する気体の種類によっては、気体吐出口を底部静翼５の内側辺５ａ付近にした場合、瞬間反応系により、前記ボトムインペラ４や底部静翼５に気泡が絡み付きスラリーが固着する場合がある。   Depending on the type of gas to be ventilated, when the gas discharge port is in the vicinity of the inner side 5a of the bottom stationary blade 5, when the gas is entangled with the bottom impeller 4 or the bottom stationary blade 5 due to the instantaneous reaction system, the slurry is fixed. There is.

そこで、図８の実施例２の変形例３に示すように、各底部静翼５の外方端５ｂ付近に気体吐出口１４ａを有する通気管を撹拌槽２内に設けるようにしてもよい。   Therefore, as shown in Modification 3 of Example 2 in FIG. 8, a vent pipe having a gas discharge port 14 a in the vicinity of the outer end 5 b of each bottom stationary blade 5 may be provided in the stirring tank 2.

この実施例２の変形例３においても、固液系や気液系や気固液系における固体、気体の分散作用を飛躍的に向上できるようになると共に、特に気固液系の撹拌において、ボトムインペラ４や底部静翼５に固体が固着しないようになる。   Also in the modified example 3 of the second embodiment, the solid and gas-liquid system and the solid-gas dispersion action of the gas-solid-liquid system can be dramatically improved. The solid does not adhere to the bottom impeller 4 and the bottom stationary blade 5.

本発明の撹拌装置は、医療品関係、食品関係等における固液撹拌や気固液撹拌に利用される。   The stirring device of the present invention is used for solid-liquid stirring and gas-solid-liquid stirring in medical products, foods, and the like.

１ 撹拌装置
２ 撹拌槽
２ａ 内底面
２ｂ 内周面
３ 回転軸
４ ボトムインペラ
４ａ 内側辺
４ｂ 外側辺
４ｃ 下側辺
５ 底部静翼
５ａ 内側辺
５ｂ 外方端
６ 内周面バッフル
７ 補助撹拌翼
８ 撹拌装置
９ 気体吐出口
１０ 通気管
１１ 翼
１２ 大型広幅翼
１３ 環状管
１３ａ 吐出口
１４ 通気チューブ
１４ａ 吐出口
DESCRIPTION OF SYMBOLS 1 Stirring apparatus 2 Stirring tank 2a Inner bottom face 2b Inner peripheral surface 3 Rotating shaft 4 Bottom impeller 4a Inner side 4b Outer side 4c Lower side 5 Bottom part stationary blade 5a Inner side 5b Outer end 6 Inner peripheral surface baffle 7 Auxiliary stirring blade 8 Stirrer 9 Gas discharge port 10 Vent tube 11 Wing 12 Large wide blade 13 Annular tube 13a Discharge port 14 Vent tube 14a Discharge port

Claims (6)

撹拌槽内に垂下した回転軸の下端に固定した、下側辺が前記撹拌槽の内底面に近接したボトムインペラと、
前記撹拌槽内に固定した、該ボトムインペラの外側辺の回転軌跡の外方の近傍位置に内側辺を有する底部静翼とよりなる撹拌装置。 A bottom impeller fixed at the lower end of the rotating shaft suspended in the stirring tank, the lower side of which is close to the inner bottom surface of the stirring tank;
A stirring device comprising a bottom stationary blade having an inner side at a position near the outer side of the rotation trajectory of the outer side of the bottom impeller, which is fixed in the stirring tank. 前記回転軸の上部に軸流式の回転翼を設けると共に、前記撹拌槽の内周面に上下方向に延びる内周面バッフルを設けた請求項１に記載の撹拌装置。   2. The stirring device according to claim 1, wherein an axial flow type rotary blade is provided at an upper portion of the rotary shaft, and an inner peripheral surface baffle extending in a vertical direction is provided on an inner peripheral surface of the stirring tank. 前記ボトムインペラの上端に大型広幅翼を連設した請求項１又は２に記載の撹拌装置。   The stirrer according to claim 1 or 2, wherein a large wide blade is continuously provided at an upper end of the bottom impeller. 前記撹拌槽の底面に気体吐出口を設けた請求項１、２又は３に記載の撹拌装置。   The stirring device according to claim 1, 2 or 3, wherein a gas discharge port is provided on a bottom surface of the stirring tank. 前記撹拌槽内に、前記底部静翼付近に気体吐出口を有する通気管を設けた請求項１乃至４のいずれか１に記載の撹拌装置。   The stirring device according to any one of claims 1 to 4, wherein a ventilation pipe having a gas discharge port is provided in the vicinity of the bottom stationary blade in the stirring tank. 前記気体吐出口を前記底部静翼の外方端に設けた請求項５に記載の撹拌装置。   The stirring device according to claim 5, wherein the gas discharge port is provided at an outer end of the bottom stationary blade.
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JP7488213B2 (en) 2021-03-08 2024-05-21 日立グローバルライフソリューションズ株式会社 Beverage Production Equipment

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JP7488213B2 (en) 2021-03-08 2024-05-21 日立グローバルライフソリューションズ株式会社 Beverage Production Equipment

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