JP2010234185A - Separator for dissolving pump - Google Patents

Separator for dissolving pump Download PDF

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JP2010234185A
JP2010234185A JP2009082192A JP2009082192A JP2010234185A JP 2010234185 A JP2010234185 A JP 2010234185A JP 2009082192 A JP2009082192 A JP 2009082192A JP 2009082192 A JP2009082192 A JP 2009082192A JP 2010234185 A JP2010234185 A JP 2010234185A
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solution
dissolution
introduction pipe
dissolution pump
pump
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JP5224382B2 (en
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Shunji Betsuso
俊二 別惣
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Izumi Food Machinery Co Ltd
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Izumi Food Machinery Co Ltd
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Priority to JP2009082192A priority Critical patent/JP5224382B2/en
Priority to CN2010800120361A priority patent/CN102355954B/en
Priority to PCT/JP2010/053102 priority patent/WO2010116812A1/en
Priority to KR1020117022856A priority patent/KR101291779B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C3/00—Apparatus in which the axial direction of the vortex flow following a screw-thread type line remains unchanged ; Devices in which one of the two discharge ducts returns centrally through the vortex chamber, a reverse-flow vortex being prevented by bulkheads in the central discharge duct
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C3/00—Apparatus in which the axial direction of the vortex flow following a screw-thread type line remains unchanged ; Devices in which one of the two discharge ducts returns centrally through the vortex chamber, a reverse-flow vortex being prevented by bulkheads in the central discharge duct
    • B04C3/06—Construction of inlets or outlets to the vortex chamber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50—Mixing liquids with solids
    • B01F23/53—Mixing liquids with solids using driven stirrers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50—Mixing liquids with solids
    • B01F23/59—Mixing systems, i.e. flow charts or diagrams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
    • B01F25/53—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle in which the mixture is discharged from and reintroduced into a receptacle through a recirculation tube, into which an additional component is introduced
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/60—Pump mixers, i.e. mixing within a pump
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/81—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis the stirrers having central axial inflow and substantially radial outflow
    • B01F27/811—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis the stirrers having central axial inflow and substantially radial outflow with the inflow from one side only, e.g. stirrers placed on the bottom of the receptacle, or used as a bottom discharge pump
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/82—Combinations of dissimilar mixers
    • B01F33/821—Combinations of dissimilar mixers with consecutive receptacles
    • B01F33/8212—Combinations of dissimilar mixers with consecutive receptacles with moving and non-moving stirring devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
    • B04C2009/007—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks with internal rotors, e.g. impeller, ventilator, fan, blower, pump

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Accessories For Mixers (AREA)
  • Cyclones (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a separator for a dissolving pump capable of continuous operation without lowering of the operation efficiency even when a dissolving solution having a high concentration or a dissolving solution being hard to dissolve and e.g. often producing lump and tufty agglomerate is circulated for dissolving operation. <P>SOLUTION: An introduction pipe 12 connected to the discharge side 6a of the dissolving pump 6 is arranged so as to protrude inward from the bottom surface of a cylindrical container 11. A discharge outlet 13 is formed in the upper part of the cylindrical container 11, and a circulation inlet 14 communicating with the dissolving pump 6 is arranged in the lower part. A twisting plate 20 twisting the flow of the dissolving solution discharged from the introduction pipe 12 is formed at the discharge end 12a of the introduction pipe 12. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、溶解ポンプにおける分離装置に関し、特に、濃度の高い溶解液や溶解しにくく、例えば、ダマ状や房状の凝集物が生じやすい溶解液を循環させて溶解運転をする場合でも、効率を低下させることなく運転することができる溶解ポンプにおける分離装置に関するものである。   The present invention relates to a separation device in a dissolution pump, and in particular, even when a dissolution operation is performed by circulating a dissolution solution having a high concentration or a dissolution solution that is difficult to dissolve, for example, a solution in which a lumpy or tufted aggregate is easily generated. The present invention relates to a separation device in a dissolution pump that can be operated without lowering the temperature.

粉体を溶媒である液体に溶解する場合に、粉体及び液体の供給と混合を１つのポンプで行うことができるようにした粉体吸引式の溶解ポンプがある（例えば、特許文献１参照）。   There is a powder suction type dissolution pump in which powder and liquid can be supplied and mixed with a single pump when powder is dissolved in a liquid as a solvent (see, for example, Patent Document 1). .

この粉体吸引式の溶解ポンプは、スリットを有する筒状体からなるステータによって、溶解ポンプに導入される粉体及び液体の量的な調整を行うとともに、攪拌翼によって、溶解ポンプに導入される粉体及び液体を混合、溶解を行い、懸濁状態の溶解液を溶解液吐出口から送り出すようにしている。   This powder suction type dissolution pump adjusts the quantity of powder and liquid introduced into the dissolution pump by a stator composed of a cylindrical body having a slit, and is introduced into the dissolution pump by a stirring blade. The powder and liquid are mixed and dissolved, and the suspended solution is sent out from the solution discharge port.

溶解液吐出口から送り出される溶解液は、分離フィルタからなる分離装置によって濾過することによって未溶解物を含有しない状態で気泡と共に送り出されるとともに、未溶解物は一部の溶解液と共に、循環流路を介して、溶解ポンプに導入し、新たに導入される粉体及び液体と共に混合、溶解を行うことにより、溶解液を循環させながら粉体と液体の混合、溶解が促進されるようにしている。   The dissolved solution sent out from the dissolved solution discharge port is sent out together with bubbles in a state not containing undissolved material by filtering with a separation device consisting of a separation filter. Is introduced into the dissolution pump, and mixed and dissolved together with the newly introduced powder and liquid, thereby promoting the mixing and dissolution of the powder and liquid while circulating the dissolved liquid. .

特開２００７−２１６１７２号公報JP 2007-216172 A

ところで、上記従来の溶解ポンプにおける分離フィルタからなる分離装置は、濃度の高い溶解液や溶解しにくく、例えば、ダマ状や房状の凝集物が生じやすい溶解液の場合、分離フィルタが閉塞してメンテナンスのために運転を中止しなければならなかったり、気泡が分離されずに循環流路を介して溶解ポンプに導入され、溶解ポンプの吸引力が低下し、運転効率が低下するという問題があった。   By the way, the separation device comprising the separation filter in the conventional dissolution pump described above is a highly concentrated solution or a solution that is difficult to dissolve. For example, in the case of a solution that tends to cause a lumpy or tufted aggregate, the separation filter is blocked. There is a problem that the operation must be stopped for maintenance, or bubbles are introduced into the dissolution pump through the circulation channel without being separated, so that the suction force of the dissolution pump is reduced and the operation efficiency is lowered. It was.

本発明は、上記従来の溶解ポンプにおける分離装置が有する問題点に鑑み、濃度の高い溶解液や溶解しにくく、例えば、ダマ状や房状の凝集物が生じやすい溶解液を循環させて溶解運転をする場合でも、運転効率を低下させることなく連続運転を行うことができる溶解ポンプにおける分離装置を提供することを目的とする。   In view of the problems of the separation apparatus in the above conventional dissolution pump, the present invention circulates a high-concentration solution or a solution that is difficult to dissolve, for example, a solution that tends to cause lumps or tufts. Therefore, an object of the present invention is to provide a separation device in a dissolution pump that can perform continuous operation without lowering the operation efficiency.

上記目的を達成するため、本第１発明の溶解ポンプにおける分離装置は、溶解ポンプの吐出側に連なる導入パイプを円筒状容器の底面から内部に突出して配設し、円筒状容器の上部に排出口を備えるとともに、下部に前記溶解ポンプに連通する循環口を備え、導入パイプの吐出端に、導入パイプから吐出される溶解液の流れを旋回させる捻り板を配設したことを特徴とする。   In order to achieve the above object, the separation device in the dissolution pump according to the first aspect of the present invention is arranged such that the introduction pipe connected to the discharge side of the dissolution pump protrudes from the bottom surface of the cylindrical container and is discharged to the upper part of the cylindrical container. In addition to having an outlet, a circulation port communicating with the dissolution pump is provided in the lower portion, and a twist plate for turning the flow of the solution discharged from the introduction pipe is disposed at the discharge end of the introduction pipe.

この場合において、捻り板を、長手方向の中心線が互いにねじれの位置関係となるように複数枚配設することができる。   In this case, a plurality of twisted plates can be arranged such that the longitudinal center lines are in a twisted positional relationship.

また、同じ目的を達成するため、本第２発明の溶解ポンプにおける分離装置は、溶解ポンプの吐出側に連なる導入パイプを円筒状容器の底面から内部に突出して配設し、円筒状容器の上部に排出口を備えるとともに、下部に前記溶解ポンプに連通する循環口を備え、導入パイプの吐出端の上部に、導入パイプから吐出される溶解液を攪拌する攪拌羽根を配設したことを特徴とする。   In order to achieve the same object, the separation device in the dissolution pump according to the second aspect of the present invention is arranged such that an introduction pipe connected to the discharge side of the dissolution pump protrudes from the bottom surface of the cylindrical container to the inside. And a circulation port communicating with the dissolution pump at the bottom, and a stirring blade for agitating the solution discharged from the introduction pipe is disposed above the discharge end of the introduction pipe. To do.

この場合において、円筒状容器の容積を、排出口から排出される溶解液の１分当たりの排出量の１〜１０倍に設定することができる。   In this case, the volume of the cylindrical container can be set to 1 to 10 times the discharge amount per minute of the solution discharged from the discharge port.

本第１発明の溶解ポンプにおける分離装置によれば、溶解ポンプの吐出側に連なる導入パイプを円筒状容器の底面から内部に突出して配設し、円筒状容器の上部に排出口を備えるとともに、下部に前記溶解ポンプに連通する循環口を備え、導入パイプの吐出端に、導入パイプから吐出される溶解液の流れを旋回させる捻り板を配設することにより、導入パイプから吐出される溶解液を捻り板によって旋回流とすることができ、旋回流による遠心作用と比重差によって気泡を多く含んだ比重の小さい溶解液成分を上部の排出口から排出するようにするとともに、未溶解物を含む比重の大きい溶解液成分を反転、流下させ、下部の循環口から循環流路を介して、溶解ポンプに戻すようにすることができる。
このとき、循環流路を介して、溶解ポンプに導入された未溶解物を含む比重の大きい溶解液成分は、気泡の含有量が少ないため、溶解ポンプに新たに導入される粉体及び液体の吸引の障害とならず、導入される粉体及び液体と共に混合、溶解を行うことにより、溶解液を循環させながら粉体と液体の混合、溶解が促進されるので、濃度の高い溶解液や溶解しにくく、例えば、ダマ状や房状の凝集物が生じやすい溶解液の場合でも、運転効率を低下させることなく連続運転を行うことができる。 According to the separation device in the dissolution pump of the first invention, the introduction pipe connected to the discharge side of the dissolution pump is disposed so as to protrude from the bottom surface of the cylindrical container, and the discharge port is provided at the top of the cylindrical container. Dissolved liquid discharged from the introduction pipe by providing a circulation port communicating with the dissolution pump in the lower part and disposing a twist plate for turning the flow of the dissolved liquid discharged from the introduction pipe at the discharge end of the introduction pipe The twisted plate can be turned into a swirling flow, and the solution component with a small specific gravity containing a large amount of bubbles is discharged from the upper discharge port due to the centrifugal action and the specific gravity difference due to the swirling flow, and includes undissolved substances The solution component having a large specific gravity can be reversed and flowed down, and returned to the dissolution pump from the lower circulation port via the circulation channel.
At this time, the solution component having a large specific gravity including the undissolved material introduced into the dissolution pump through the circulation channel has a small amount of bubbles, so that the powder and liquid newly introduced into the dissolution pump Mixing and dissolving together with the powder and liquid to be introduced does not become a hindrance to suction, so that mixing and dissolution of the powder and liquid is promoted while circulating the solution. For example, even in the case of a solution that tends to generate agglomerated or tufted aggregates, continuous operation can be performed without lowering the operation efficiency.

また、捻り板を、長手方向の中心線が互いにねじれの位置関係となるように複数枚配設することにより、偏りのない旋回流を発生させることができ、比重の小さい溶解液成分と比重の大きい溶解液成分の分離を確実に行うことができる。   In addition, by arranging a plurality of twisted plates so that the longitudinal center lines are in a twisted positional relationship with each other, it is possible to generate a swirl flow with no bias, and a solution component with a low specific gravity and a specific gravity Separation of large lysate components can be ensured.

また、本第２発明の溶解ポンプにおける分離装置によれば、溶解ポンプの吐出側に連なる導入パイプを円筒状容器の底面から内部に突出して配設し、円筒状容器の上部に排出口を備えるとともに、下部に前記溶解ポンプに連通する循環口とを備え、導入パイプの吐出端の上部に、導入パイプから吐出される溶解液を攪拌する攪拌羽根を配設することにより、導入パイプから吐出される溶解液を攪拌羽根の遠心作用と比重差によって気泡を多く含んだ比重の小さい溶解液成分を上部の排出口から排出するようにするとともに、未溶解物を含む比重の大きい溶解液成分を反転、流下させ、下部の循環口から循環流路を介して、溶解ポンプに戻すようにすることができる。
このとき、循環流路を介して、溶解ポンプに導入された未溶解物を含む比重の大きい溶解液成分は、気泡の含有量が少ないため、溶解ポンプに新たに導入される粉体及び液体の吸引の障害とならず、導入される粉体及び液体と共に混合、溶解を行うことにより、溶解液を循環させながら粉体と液体の混合、溶解が促進されるので、濃度の高い溶解液や溶解しにくく、例えば、ダマ状や房状の凝集物が生じやすい溶解液の場合でも、運転効率を低下させることなく連続運転を行うことができる。
また、導入パイプから吐出される溶解液を攪拌羽根により強制排出することによって、溶解ポンプの吐出力を補助することができるとともに、攪拌羽根による溶解液の攪拌、流動化によって、溶解液の粘度を低下させて流動抵抗を低減することができ、溶解液の流動性を改善し、運転効率を向上することができる。 Further, according to the separation device for the dissolution pump of the second invention, the introduction pipe connected to the discharge side of the dissolution pump is disposed so as to protrude from the bottom surface of the cylindrical container, and the discharge port is provided at the upper part of the cylindrical container. In addition, a circulation port communicating with the dissolution pump is provided at the lower part, and a stirring blade for stirring the solution discharged from the introduction pipe is disposed at the upper part of the discharge end of the introduction pipe, thereby discharging from the introduction pipe. The solution of low specific gravity containing a large amount of air bubbles is discharged from the upper outlet through the centrifugal action of the stirring blade and the difference in specific gravity, and the solution of high specific gravity including undissolved material is reversed. It is allowed to flow down and return to the dissolution pump from the lower circulation port via the circulation channel.
At this time, the solution component having a large specific gravity including the undissolved material introduced into the dissolution pump through the circulation channel has a small amount of bubbles, so that the powder and liquid newly introduced into the dissolution pump Mixing and dissolving together with the powder and liquid to be introduced does not become a hindrance to suction, so that mixing and dissolution of the powder and liquid is promoted while circulating the solution. For example, even in the case of a solution that tends to generate agglomerated or tufted aggregates, continuous operation can be performed without lowering the operation efficiency.
In addition, by forcibly discharging the solution discharged from the introduction pipe with the stirring blade, the discharge force of the dissolution pump can be assisted, and the viscosity of the solution can be increased by stirring and fluidizing the solution with the stirring blade. The flow resistance can be reduced by lowering, the fluidity of the solution can be improved, and the operation efficiency can be improved.

また、円筒状容器の容積を、排出口から排出される溶解液の１分当たりの排出量の１〜１０倍に設定することにより、攪拌羽根による溶解液の攪拌、流動化によって、溶解液が分離することを防止しながら、また、運転効率を低下させることなく、溶解液の滞留時間（１〜１０分程度）を確保することができ、これにより、例えば、粉体として米粉等のデンプン質の粉体を使用し、デンプン分解酵素を加えて溶解運転をする場合に、デンプン質の粉体が分解される時間を確保しながら、溶解液の攪拌、流動化によって、均一な分解を促し、溶解液が分離を起こしたり、溶解液の粘度が高くなって流動化が阻害されることを防止することができる。   Moreover, by setting the volume of the cylindrical container to 1 to 10 times the discharge amount per minute of the solution discharged from the discharge port, the solution is stirred and fluidized by the stirring blades. While preventing the separation, it is possible to ensure the residence time (about 1 to 10 minutes) of the solution without reducing the operation efficiency, and thereby, for example, starch such as rice flour as a powder. When using the powder of, and adding starch-degrading enzyme to perform the dissolution operation, while ensuring the time for the starchy powder to be decomposed, the solution is stirred and fluidized to promote uniform decomposition. It is possible to prevent the dissolution liquid from being separated or the viscosity of the dissolution liquid from being increased and fluidization to be inhibited.

本第１発明の溶解ポンプにおける分離装置の一実施例を示し、（ａ）は正面断面図、（ｂ）は気泡とダマ状や房状の凝集物の拡大図である。One Example of the separation apparatus in the dissolution pump of this 1st invention is shown, (a) is front sectional drawing, (b) is an enlarged view of a bubble and a dama-like or tuft-like aggregate. 捻り板の一部切り欠きの詳細図で、（ａ）は平面図、（ｂ）は（ａ）のＸ−Ｘ断面図、（ｃ）は斜視図である。It is detail drawing of the notch of a twist board, (a) is a top view, (b) is XX sectional drawing of (a), (c) is a perspective view. 同分離装置を適用した溶解ポンプを含む粉体溶解装置の全体図である。It is a general view of a powder dissolution apparatus including a dissolution pump to which the separation device is applied. 本第２発明の溶解ポンプにおける分離装置の一実施例を示す正面断面図である。It is front sectional drawing which shows one Example of the separation apparatus in the dissolution pump of this 2nd invention. 同分離装置を適用した溶解ポンプを含む粉体溶解装置の全体図である。It is a general view of a powder dissolution apparatus including a dissolution pump to which the separation device is applied.

以下、本発明の溶解ポンプにおける分離装置の実施の形態を、図面に基づいて説明する。   Hereinafter, embodiments of a separation device in a dissolution pump of the present invention will be described with reference to the drawings.

図１〜図３に、本第１発明の溶解ポンプにおける分離装置を適用した溶解ポンプを含む粉体溶解装置の一実施例を示す。
この分離装置１は、粉体供給装置３から供給される粉体と溶媒供給装置４から供給される溶媒（水）とを混合する溶解ポンプ６の吐出側に配設され、溶解液のうち比重の大きい未溶解物（ダマ状や房状の凝集物等をいい、以下、「未溶解物Ｆ」という。）を含有した溶解液を循環させて混合を促進する真空溶解運転を行うとともに、溶解液のうち、気泡Ｂを含み比重が軽く未溶解物Ｆを含有しない溶解液を排出口１３から送り出すようにするのもので、溶解ポンプ６の吐出側６ａに連なる導入パイプ１２を円筒状容器１１の底面から内部に突出して配設し、円筒状容器１１の上部に排出口１３を備えるとともに、下部に溶解ポンプ６に連通する循環口１４を備え、導入パイプ１２の吐出端１２ａに、導入パイプ１２から吐出される溶解液の流れを旋回させる捻り板２０を配設するようにしている。 1 to 3 show an embodiment of a powder dissolving apparatus including a dissolving pump to which the separating apparatus in the dissolving pump of the first invention is applied.
The separation device 1 is disposed on the discharge side of a dissolution pump 6 that mixes the powder supplied from the powder supply device 3 and the solvent (water) supplied from the solvent supply device 4, and has a specific gravity of the solution. A vacuum dissolution operation that promotes mixing by circulating a solution containing large undissolved substances (such as lumps and tufts of aggregates, hereinafter referred to as “undissolved substance F”) and dissolution. Among the liquids, a solution containing bubbles B and having a light specific gravity and containing no undissolved substance F is sent out from the discharge port 13, and the introduction pipe 12 connected to the discharge side 6 a of the dissolution pump 6 is connected to the cylindrical container 11. And a discharge port 13 at the top of the cylindrical container 11, a circulation port 14 communicating with the dissolution pump 6 at the bottom, and an introduction pipe 12 at the discharge end 12 a of the introduction pipe 12. Flow of the solution discharged from 12 So that disposing the twist plate 20 to pivot the.

導入パイプ１２の吐出端１２ａに配設する捻り板２０は、導入パイプ１２から吐出される溶解液の流れを旋回させることができるものであれば、特に限定されるものではないが、本実施例においては、図２に示すように、複数（本実施例では４枚）の捻り板２０を、導入パイプ１２の中心軸Ｃを含む面に対して角度αだけ傾斜させて取り付けるとともに、捻り板２０の長手方向の中心線２０ａが互いにねじれの位置関係となるように配設するようにしている。
捻り板２０の導入パイプ１２の中心軸Ｃを含む面に対する傾斜角度αは、４０〜５０°、好ましくは４５°とし、捻り板２０と導入パイプ１２の内周面とが当接するように、捻り板２０の導入パイプ１２との当接辺２０ｂは、導入パイプ１２を角度αで切断した際の楕円形状に倣った円弧形状に形成するようにする。
また、導入パイプ１２から吐出される溶解液を捻り板２０によって効果的に旋回流とするために、捻り板２０の先端は、導入パイプ１２の吐出端１２ａから長さＬだけ突出するように配設する。この長さＬは、吐出端１２ａの内径の１０〜１５％程度とすることが好ましい。 The twist plate 20 disposed at the discharge end 12a of the introduction pipe 12 is not particularly limited as long as it can swivel the flow of the solution discharged from the introduction pipe 12, but this embodiment 2, a plurality (four in this embodiment) of twisted plates 20 are attached to the surface including the central axis C of the introduction pipe 12 at an angle α, and the twisted plates 20 are attached. The center lines 20a in the longitudinal direction are arranged so as to have a twisted positional relationship with each other.
The inclination angle α of the twist plate 20 with respect to the plane including the central axis C of the introduction pipe 12 is 40 to 50 °, preferably 45 °, and the twist plate 20 and the inner peripheral surface of the introduction pipe 12 are in contact with each other. The contact side 20b of the plate 20 with the introduction pipe 12 is formed in an arc shape that follows the elliptical shape when the introduction pipe 12 is cut at an angle α.
In addition, in order to make the solution discharged from the introduction pipe 12 into the swirl flow effectively by the twist plate 20, the tip of the twist plate 20 is arranged so as to protrude from the discharge end 12 a of the introduction pipe 12 by a length L. Set up. The length L is preferably about 10 to 15% of the inner diameter of the discharge end 12a.

次に、本実施例の分離装置１を用いた粉体の溶解運転を説明する。
図３に示すように、粉体供給装置３に投入された粉体は、溶解ポンプ６の真空吸引力で吸引され、ミキシングノズル５を旋回しながら流下する溶媒（水）とともに溶解ポンプ６に流入する。
粉体は、溶解ポンプ６内において、混合、剪断、遠心作用を受け、溶媒に分散、溶解した後、吐出流となって溶解ポンプ６の吐出側６ａから導入パイプ１２を介して分離装置１の上部に流入する。 Next, the powder melting operation using the separation device 1 of the present embodiment will be described.
As shown in FIG. 3, the powder charged in the powder supply device 3 is sucked by the vacuum suction force of the dissolution pump 6 and flows into the dissolution pump 6 together with the solvent (water) flowing down while turning the mixing nozzle 5. To do.
The powder is subjected to mixing, shearing, and centrifugal action in the dissolution pump 6, dispersed and dissolved in a solvent, and then discharged as a discharge flow from the discharge side 6 a of the dissolution pump 6 through the introduction pipe 12. It flows into the upper part.

このとき、図１に示すように、気泡Ｂ及び未溶解物Ｆの混在する溶解液は、導入パイプ１２の吐出端１２ａに配設した捻り板２０によって旋回し、吐出端１２ａの上部で逆円錐形状の旋回流Ｔとなる。   At this time, as shown in FIG. 1, the dissolved liquid in which the bubbles B and the undissolved matter F coexist is swung by the twist plate 20 disposed at the discharge end 12 a of the introduction pipe 12, and the inverted cone is formed above the discharge end 12 a. The swirl flow T has a shape.

そして、この旋回流Ｔによる遠心作用及び比重差によって、気泡Ｂを多く含み、未溶解物Ｆを含まない比重の小さい溶解液成分は、未溶解物Ｆを上部の排出口１３から排出される。
一方、気泡Ｂが少なく、未溶解物Ｆを含む比重の大きい溶解液成分は、反転、流下し、下部の循環口１４から循環流路を介して溶解ポンプ６に戻される。
このとき、溶解ポンプ６から吐出される溶解液に含まれる気泡Ｂを、効率よく分離して、未溶解物Ｆを含まない比重の小さい溶解液成分と共に、上部の排出口１３から排出するから、循環口１４を経て溶解ポンプ６に戻される溶解液は、気泡の含有量が少ないため、気泡混入による吸気能力の低下を抑制することができ、溶解ポンプ６に新たに導入される粉体及び液体の吸引の障害とならず、導入される粉体及び液体と共に混合、溶解を行うことができる。
これにより、溶解液を循環させながら粉体と液体の混合、溶解が促進されるので、濃度の高い溶解液や溶解しにくく、例えば、ダマ状や房状の凝集物が生じやすい溶解液の場合でも、運転効率を低下させることなく連続運転を行うことができる。 Then, due to the centrifugal action and the specific gravity difference caused by the swirling flow T, the dissolved liquid component containing a large amount of bubbles B and not containing the undissolved matter F is discharged from the upper outlet 13.
On the other hand, the dissolved liquid component having a small amount of bubbles B and having a large specific gravity including the undissolved material F is reversed and flows down, and is returned from the lower circulation port 14 to the dissolution pump 6 through the circulation channel.
At this time, the bubbles B contained in the solution discharged from the dissolution pump 6 are efficiently separated and discharged from the upper discharge port 13 together with the solution component having a small specific gravity not including the undissolved matter F. Since the solution returned to the dissolution pump 6 through the circulation port 14 has a small amount of bubbles, it is possible to suppress a reduction in the intake capacity due to mixing of bubbles, and powder and liquid newly introduced into the dissolution pump 6. Therefore, mixing and dissolution can be performed together with the introduced powder and liquid.
This facilitates mixing and dissolution of the powder and liquid while circulating the solution, so it is difficult to dissolve the solution with high concentration or, for example, in the case of a solution that is liable to generate lumps or tufts. However, continuous operation can be performed without reducing operating efficiency.

また、捻り板２０は構造が単純であり、溶解液が通過する際の圧力損失は小さく、未溶解物Ｆも詰まることなく通過させることができることから、メンテナンスの頻度を少なくして連続運転を可能にすることができる。   In addition, the twisted plate 20 has a simple structure, the pressure loss when the solution passes through is small, and the undissolved material F can pass through without clogging, so that it can be operated continuously with less maintenance. Can be.

また、本実施例において、円筒状容器１１の容積は、特に限定されるものではないが、例えば、排出口１３から排出される溶解液の１分当たりの排出量の０．２〜１倍程度に設定するようにすることができる。
これにより、溶解液が分離を起こしたり、溶解液の粘度が高くなって流動化が阻害されることを防止することができる。 In the present embodiment, the volume of the cylindrical container 11 is not particularly limited. For example, the volume of the solution discharged from the discharge port 13 is about 0.2 to 1 times the discharge amount per minute. Can be set to
Thereby, it can prevent that a melt | dissolution liquid raise | generates separation, or the viscosity of a melt solution becomes high and fluidization is inhibited.

図４〜図５に、本第２発明の溶解ポンプにおける分離装置を適用した溶解ポンプを含む粉体溶解装置の一実施例を示す。   4 to 5 show an embodiment of a powder dissolving apparatus including a dissolving pump to which the separating apparatus in the dissolving pump of the second invention is applied.

この分離装置１は、第１発明の分離装置と同様、粉体供給装置３から供給される粉体と溶媒供給装置４から供給される溶媒（水）とを混合する溶解ポンプ６の吐出側に配設され、溶解液のうち比重の大きい未溶解物Ｆを含有した溶解液を循環させて粉体と液体との混合を促進する真空溶解運転を行うとともに、溶解液のうち、気泡Ｂを含み比重が軽く未溶解物Ｆを含有しない溶解液を排出口１３から送り出すようにするのもので、溶解ポンプ６の吐出側６ａに連なる導入パイプ１２を円筒状容器１１の底面から内部に突出して配設し、円筒状容器１１の上部に排出口１３を備えるとともに、下部に前記溶解ポンプ６に連通する循環口１４を備えるようにしている。   Similar to the separation device of the first invention, the separation device 1 is disposed on the discharge side of a dissolution pump 6 that mixes the powder supplied from the powder supply device 3 and the solvent (water) supplied from the solvent supply device 4. A vacuum solution operation is performed in which a solution containing undissolved substance F having a large specific gravity is circulated to promote mixing of the powder and the liquid, and bubbles B are included in the solution. A solution having a low specific gravity and containing no undissolved substance F is sent out from the discharge port 13. An introduction pipe 12 connected to the discharge side 6 a of the dissolution pump 6 protrudes from the bottom surface of the cylindrical container 11 to the inside. The discharge port 13 is provided in the upper part of the cylindrical container 11 and the circulation port 14 communicating with the dissolution pump 6 is provided in the lower part.

そして、分離装置１は、導入パイプ１２の吐出端１２ａの上部に、導入パイプ１２から吐出される溶解液を攪拌する攪拌羽根２２を配設するようにしている。   In the separation device 1, a stirring blade 22 that stirs the solution discharged from the introduction pipe 12 is disposed above the discharge end 12 a of the introduction pipe 12.

攪拌羽根２２は、導入パイプ１２の吐出端１２ａから吐出される溶解液を攪拌させるように構成するものであれば、特に限定されるものではないが、本実施例においては、円筒状容器１１の上面の中心付近から、円筒状容器１１の内部に延設した回転軸２３の先端に配設した複数（本実施例では４枚）の板状部材からなる。   The stirring blade 22 is not particularly limited as long as it is configured to stir the solution discharged from the discharge end 12a of the introduction pipe 12, but in the present embodiment, the stirring vessel 22 It consists of a plurality (four in this embodiment) of plate-like members disposed at the tip of the rotating shaft 23 extending from the vicinity of the center of the upper surface to the inside of the cylindrical container 11.

回転軸２３は、円筒状容器１１に、例えば、メカニカルシール２５によってシールして配設され、上端をモータＭ等の駆動装置と連結し、円筒状容器１１内で攪拌羽根２２を回転させるようにしている。   The rotating shaft 23 is disposed on the cylindrical container 11 by being sealed by, for example, a mechanical seal 25, and has an upper end connected to a driving device such as a motor M so as to rotate the stirring blade 22 in the cylindrical container 11. ing.

攪拌羽根２２は、攪拌羽根２２の表面２２ａが導入パイプ１２の中心軸Ｃを含む面に位置するように平坦面に形成するほか、所定角度、例えば、３０〜４５°傾斜して取り付けたり、彎曲して形成することにより、吐出端１２ａから吐出される溶解液を効果的に旋回させるように構成することもできる。   The agitating blade 22 is formed on a flat surface so that the surface 22a of the agitating blade 22 is located on the surface including the central axis C of the introduction pipe 12, and is attached at a predetermined angle, for example, 30 to 45 °, or curved. Thus, the solution discharged from the discharge end 12a can be effectively swirled.

円筒状容器１１の上部に開口する排出口１３は、攪拌羽根２２によって遠心力を付与された溶解液が効果的に排出されるようにするために、図４に示すように、円筒状容器１１の上部側面に、好ましくは、円筒状容器１１の接線方向に、開口するようにしている。   As shown in FIG. 4, the discharge port 13 opened at the upper part of the cylindrical container 11 is provided with a cylindrical container 11 in order to effectively discharge the solution applied with centrifugal force by the stirring blade 22. The upper side surface of the cylindrical container 11 is preferably opened in the tangential direction of the cylindrical container 11.

次に、本実施例の分離装置１を用いた粉体の溶解運転を説明する。
図５に示すように、粉体供給装置３に投入された粉体は、溶解ポンプ６の真空吸引力で吸引され、ミキシングノズル５を旋回しながら流下する溶媒（水）とともに溶解ポンプ６に流入する。
粉体は、溶解ポンプ６内において、混合、剪断、遠心作用を受け、溶媒に分散、溶解した後、吐出流となって溶解ポンプ６の吐出側６ａから導入パイプ１２を介して分離装置１の上部に流入する。 Next, the powder melting operation using the separation device 1 of the present embodiment will be described.
As shown in FIG. 5, the powder charged into the powder supply device 3 is sucked by the vacuum suction force of the dissolution pump 6 and flows into the dissolution pump 6 together with the solvent (water) flowing down while turning the mixing nozzle 5. To do.
The powder is subjected to mixing, shearing, and centrifugal action in the dissolution pump 6, dispersed and dissolved in a solvent, and then discharged as a discharge flow from the discharge side 6 a of the dissolution pump 6 through the introduction pipe 12. It flows into the upper part.

このとき、図４に示すように、気泡Ｂ及び未溶解物Ｆの混在する溶解液は、導入パイプ１２の吐出端１２ａの上部に配設した攪拌羽根２２によって遠心作用を受ける。   At this time, as shown in FIG. 4, the dissolved liquid in which the bubbles B and the undissolved substances F are mixed is subjected to a centrifugal action by the stirring blade 22 disposed at the upper part of the discharge end 12 a of the introduction pipe 12.

そして、この攪拌羽根２２による遠心作用及び比重差によって、気泡Ｂを多く含み、未溶解物Ｆを含まない比重の小さい溶解液成分は、未溶解物Ｆを上部の排出口１３から排出される。
一方、気泡Ｂが少なく、未溶解物Ｆを含む比重の大きい溶解液成分は、反転、流下し、下部の循環口１４から循環流路を介して溶解ポンプ６に戻される。
このとき、溶解ポンプ６から吐出される溶解液に含まれる気泡Ｂを、効率よく分離して、未溶解物Ｆを含まない比重の小さい溶解液成分と共に、上部の排出口１３から排出するから、循環口１４を経て溶解ポンプ６に戻される溶解液は、気泡の含有量が少ないため、気泡混入による吸気能力の低下を抑制することができ、溶解ポンプ６に新たに導入される粉体及び液体の吸引の障害とならず、導入される粉体及び液体と共に混合、溶解を行うことができる。
これにより、溶解液を循環させながら粉体と液体の混合、溶解が促進されるので、濃度の高い溶解液や溶解しにくく、例えば、ダマ状や房状の凝集物が生じやすい溶解液の場合でも、運転効率を低下させることなく連続運転を行うことができる。
また、導入パイプ１２から吐出される溶解液を攪拌羽根２２により強制排出することによって、溶解ポンプ６の吐出力を補助することができるとともに、攪拌羽根２２による溶解液の攪拌、流動化によって、溶解液の粘度を低下させて流動抵抗を低減することができ、溶解液の流動性を改善し、運転効率を向上することができる。 Then, due to the centrifugal action and the specific gravity difference by the stirring blade 22, the dissolved liquid component containing a large amount of bubbles B and not containing the undissolved material F is discharged from the upper discharge port 13.
On the other hand, the dissolved liquid component having a small amount of bubbles B and having a large specific gravity including the undissolved material F is reversed and flows down, and is returned from the lower circulation port 14 to the dissolution pump 6 through the circulation channel.
At this time, the bubbles B contained in the solution discharged from the dissolution pump 6 are efficiently separated and discharged from the upper discharge port 13 together with the solution component having a small specific gravity not including the undissolved matter F. Since the solution returned to the dissolution pump 6 through the circulation port 14 has a small amount of bubbles, it is possible to suppress a reduction in the intake capacity due to mixing of bubbles, and powder and liquid newly introduced into the dissolution pump 6. Therefore, mixing and dissolution can be performed together with the introduced powder and liquid.
This facilitates mixing and dissolution of the powder and liquid while circulating the solution, so it is difficult to dissolve the solution with high concentration or, for example, in the case of a solution that is liable to generate lumps or tufts. However, continuous operation can be performed without reducing operating efficiency.
In addition, by forcibly discharging the solution discharged from the introduction pipe 12 by the stirring blade 22, the discharge force of the dissolution pump 6 can be assisted, and the solution can be dissolved by stirring and fluidizing the solution by the stirring blade 22. It is possible to reduce the flow resistance by lowering the viscosity of the liquid, improve the fluidity of the dissolved liquid, and improve the operation efficiency.

また、本実施例において、円筒状容器１１の容積は、特に限定されるものではないが、例えば、排出口１３から排出される溶解液の１分当たりの排出量の１〜１０倍程度に設定するようにする（上記第１発明の分離装置の実施例のように、０．２〜１倍程度に設定することも可能である。）ことができる。
これにより、攪拌羽根２２による溶解液の攪拌、流動化によって、溶解液が分離することを防止しながら、また、運転効率を低下させることなく、溶解液の滞留時間（１〜１０分程度）を確保することができる。
そして、例えば、粉体として米粉等のデンプン質の粉体を使用し、デンプン分解酵素を加えて溶解運転をする場合に、デンプン質の粉体が分解される時間を確保しながら、溶解液の攪拌、流動化によって、均一な分解を促し、溶解液が分離を起こしたり、溶解液の粘度が高くなって流動化が阻害されることを防止することができる。 In the present embodiment, the volume of the cylindrical container 11 is not particularly limited. For example, the volume of the cylindrical container 11 is set to about 1 to 10 times the discharge amount per minute of the solution discharged from the discharge port 13. (As in the embodiment of the separation apparatus of the first invention, it can be set to about 0.2 to 1 times).
This prevents the solution from being separated by stirring and fluidizing the solution with the stirring blade 22 and reduces the residence time of the solution (about 1 to 10 minutes) without reducing the operation efficiency. Can be secured.
And, for example, when starchy powder such as rice flour is used as the powder, and the dissolution operation is performed by adding starch degrading enzyme, the time for dissolving the starchy powder is ensured. By stirring and fluidizing, uniform decomposition can be promoted, and the solution can be prevented from being separated, or the viscosity of the solution can be increased and fluidization can be prevented.

以上、本発明の溶解ポンプにおける分離装置について、複数の実施例に基づいて説明したが、本発明は上記実施例に記載した構成に限定されるものではなく、その趣旨を逸脱しない範囲において適宜その構成を変更することができる。   As described above, the separation device in the dissolution pump of the present invention has been described based on a plurality of examples. However, the present invention is not limited to the configuration described in the above examples, and may be appropriately selected without departing from the spirit thereof. The configuration can be changed.

本発明の溶解ポンプにおける分離装置は、運転効率を低下させることなく連続運転することができるという特性を有していることから、例えば、濃度の高い溶解液や溶解しにくく、例えば、ダマ状や房状の凝集物が生じやすい溶解液を循環させて溶解運転をする粉体溶解装置の用途に好適に用いることができる。   Since the separation device in the dissolution pump of the present invention has a characteristic that it can be continuously operated without lowering the operation efficiency, it is difficult to dissolve, for example, a high-concentration dissolved solution, It can be used suitably for the application of a powder dissolving apparatus in which a dissolving liquid is circulated through a dissolving liquid in which tuft-like aggregates are likely to be generated.

１ 分離装置
１１ 円筒状容器
１２ 導入パイプ
１２ａ 吐出端
１３ 排出口
１４ 循環口
２０ 捻り板
２０ａ 中心線
２２ 攪拌羽根
６ 溶解ポンプ
６ａ 溶解ポンプの吐出側 DESCRIPTION OF SYMBOLS 1 Separator 11 Cylindrical container 12 Introducing pipe 12a Discharge end 13 Discharge port 14 Circulation port 20 Twist plate 20a Center line 22 Stirring blade 6 Dissolution pump 6a Discharge side of dissolution pump

Claims (4)

溶解ポンプの吐出側に連なる導入パイプを円筒状容器の底面から内部に突出して配設し、円筒状容器の上部に排出口を備えるとともに、下部に前記溶解ポンプに連通する循環口を備え、導入パイプの吐出端に、導入パイプから吐出される溶解液の流れを旋回させる捻り板を配設したことを特徴とする溶解ポンプにおける分離装置。   An introduction pipe connected to the discharge side of the dissolution pump is arranged so as to protrude from the bottom of the cylindrical container, and a discharge port is provided at the upper part of the cylindrical container, and a circulation port is provided at the lower part to communicate with the dissolution pump. A separation device for a dissolution pump, characterized in that a twisting plate for swirling the flow of a solution discharged from an introduction pipe is disposed at a discharge end of the pipe. 捻り板を、長手方向の中心線が互いにねじれの位置関係となるように複数枚配設したことを特徴とする請求項１記載の溶解ポンプにおける分離装置。   2. The separating apparatus for a dissolution pump according to claim 1, wherein a plurality of twisted plates are arranged such that longitudinal centerlines are in a twisted positional relationship with each other. 溶解ポンプの吐出側に連なる導入パイプを円筒状容器の底面から内部に突出して配設し、円筒状容器の上部に排出口を備えるとともに、下部に前記溶解ポンプに連通する循環口を備え、導入パイプの吐出端の上部に、導入パイプから吐出される溶解液を攪拌する攪拌羽根を配設したことを特徴とする溶解ポンプにおける分離装置。   An introduction pipe connected to the discharge side of the dissolution pump is arranged so as to protrude from the bottom of the cylindrical container, and a discharge port is provided at the upper part of the cylindrical container, and a circulation port is provided at the lower part to communicate with the dissolution pump. A separation device for a dissolution pump, wherein a stirring blade for stirring the solution discharged from the introduction pipe is disposed above the discharge end of the pipe. 円筒状容器の容積を、排出口から排出される溶解液の１分当たりの排出量の１〜１０倍に設定したことを特徴とする請求項３記載の溶解ポンプにおける分離装置。
4. The separation apparatus for a dissolution pump according to claim 3, wherein the volume of the cylindrical container is set to 1 to 10 times the discharge amount per minute of the solution discharged from the discharge port.
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PCT/JP2010/053102 WO2010116812A1 (en) 2009-03-30 2010-02-26 Separation device in melting pump
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