JP2010167399A - Apparatus and system for mixing liquid and powder - Google Patents

Apparatus and system for mixing liquid and powder Download PDF

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JP2010167399A
JP2010167399A JP2009034492A JP2009034492A JP2010167399A JP 2010167399 A JP2010167399 A JP 2010167399A JP 2009034492 A JP2009034492 A JP 2009034492A JP 2009034492 A JP2009034492 A JP 2009034492A JP 2010167399 A JP2010167399 A JP 2010167399A
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liquid
powder
jet pump
pump
mixing
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Kanichi Ito
寛一 伊藤
Izuru Nagatani
出瑠 永谷
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a simple apparatus/system which, when mixing liquid and powder while preventing dust scattering by utilizing the sucking action of a jet pump, prevents deterioration in the suction effect due to increase in the mixing rate of the powder and effectively manufactures a homogeneous liquid mixture. <P>SOLUTION: By serially connecting a liquid tank having an agitation function, a pressurizing pump and the jet pump thereby forming a circulation passage and supplying the powder to the low pressure chamber of the jet pump, the viscosity of thixotropic fluid is reduced by agitation inside the tank, and deterioration in the suction effect of the jet pump in the poststage is prevented. Also, by integrating the pressurizing pump with the jet pump as a steam ejector, a liquid substance is pulverized/homogenized further effectively by impact waves generated upon steam condensation and a structure is simplified/miniaturized. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、医薬品・化粧品・食品・染料などの製造プロセスにおいて、液体に粉体を添加混合する装置およびシステムに係る。  The present invention relates to an apparatus and system for adding and mixing powder to a liquid in a manufacturing process for pharmaceuticals, cosmetics, foods, dyes, and the like.

医薬品・化粧品・食品・染料などの製造プロセスにおいて、撹拌槽内で液体と粉体を混合し乳化する場合に、粉体供給時の粉塵飛散による作業環境の悪化や粉塵爆発の危険を防止する必要があるが、粉塵飛散の完全防止は容易ではない。その対策として粉体をジェットポンプの低圧部に供給して吸引させる方法が考えられるが、粉体の混合率の増加に伴って混合液の粘度が高くなるとジェットポンプの吸引効果が低下する問題がある。  In the manufacturing process for pharmaceuticals, cosmetics, foods, dyes, etc., when mixing and emulsifying liquid and powder in a stirring tank, it is necessary to prevent the deterioration of the work environment and the risk of dust explosion due to dust scattering during powder supply. However, it is not easy to completely prevent dust scattering. As a countermeasure, it is conceivable to supply powder to the low-pressure part of the jet pump and suck it, but there is a problem that the suction effect of the jet pump decreases when the viscosity of the mixed liquid increases with increasing powder mixing ratio. is there.

また、ジェットポンプの吸引効果で均質な乳化物を製造するためには、液量に対して粉体量を適確に制御すると共に吸引混合操作を繰り返して粉体の凝集を防ぐ必要がある。  In addition, in order to produce a homogeneous emulsion by the suction effect of the jet pump, it is necessary to appropriately control the amount of powder relative to the amount of liquid and to repeat the suction mixing operation to prevent powder aggregation.

以上の背景に鑑み本発明は、撹拌槽内で液体と粉体を混合・乳化する場合にジェットポンプの吸引作用を利用して粉体の飛散を完全に防除すると共に、粉体の混合率が増加して高濃度になってもジェットポンプの吸引効果が低下せず、円滑な混合操作が可能となることを第一の課題としている。また、粉体濃度の制御が容易であり且つ粉体の凝集がなく均質な乳化物を効果的に製造できる簡易な装置・システムを構築することを第二の課題としている。  In view of the above background, in the present invention, when mixing and emulsifying a liquid and powder in a stirring tank, the powder pump is used to completely prevent powder scattering by using the suction action of the jet pump, and the mixing ratio of the powder is The first problem is that the suction effect of the jet pump does not decrease even when the concentration is increased to a high concentration, and smooth mixing operation is possible. Another object of the present invention is to construct a simple apparatus and system that can easily control a powder concentration and can effectively produce a homogeneous emulsion without agglomeration of the powder.

上記課題を解決するために請求項１に記載の発明は、撹拌機能を備えた液槽及び加圧ポンプならびにジェットポンプを直列に連結して循環流路を形成すると共に、該ジェットポンプの低圧室に調整弁を介して粉体を供給し液体に粉体を吸引混合せしめることを特徴とする、液体と粉体の混合装置である。  In order to solve the above-mentioned problem, the invention described in claim 1 is to connect a liquid tank having a stirring function, a pressure pump, and a jet pump in series to form a circulation flow path, and to form a low-pressure chamber of the jet pump. A liquid-powder mixing apparatus is characterized in that the powder is supplied to the liquid via a regulating valve and the powder is sucked and mixed into the liquid.

また、請求項２に記載の発明は、請求項１に記載の発明において、加圧ポンプを水蒸気エゼクターにすると共にジェットポンプと一体化することを特徴とする、液体と粉体の混合装置である。  The invention described in claim 2 is the liquid and powder mixing apparatus according to the invention described in claim 1, wherein the pressurizing pump is a water vapor ejector and is integrated with the jet pump. .

また、請求項３に記載の発明は、請求項１及び２に記載の発明において、液槽の上部に循環流路の入口を接線方向に接続して液槽内に旋回流を生成せしめると共に、液槽内壁に旋回流に対向する邪魔板を設けることを特徴とする、液体と粉体の混合装置である。  The invention described in claim 3 is the invention described in claims 1 and 2, wherein the inlet of the circulation channel is connected to the upper part of the liquid tank in a tangential direction to generate a swirling flow in the liquid tank, An apparatus for mixing liquid and powder, wherein a baffle plate facing a swirling flow is provided on an inner wall of a liquid tank.

また、請求項４に記載の発明は、請求項１及び２に記載の発明において、ジェットポンプのノズル出口を扁平に構築し、ジェット流を扁平として粉体との比接触面積を増大させることを特徴とする、液体と粉体の混合装置である。  According to a fourth aspect of the present invention, in the first and second aspects of the invention, the nozzle outlet of the jet pump is constructed flat, and the jet flow is flattened to increase the specific contact area with the powder. It is a mixing device of liquid and powder.

また、請求項５に記載の発明は、請求項１〜請求項４に記載の混合装置に加えて、循環流路に調整弁を介して原液供給管と混合液排出管を接続すると共に混合液の濃度計測器を設け、原液の供給量に対する粉体の添加量と混合液の循環量及び排出量を調整することによって所定濃度の均質な混合液を連続的に排出せしめ得ることを特徴とする、液体と粉体の混合システムである。  In addition to the mixing device according to any one of claims 1 to 4, the invention according to claim 5 connects the stock solution supply pipe and the mixed solution discharge pipe to the circulation flow path via a regulating valve, and the mixed solution. It is characterized in that a homogeneous mixed solution of a predetermined concentration can be continuously discharged by adjusting the amount of powder added to the supply amount of the stock solution and the circulation amount and discharge amount of the mixed solution. , Liquid and powder mixing system.

請求項１に記載の発明によれば、粉体がミクロン単位の超微粉体であっても、混合操作において粉体が飛散することがないので粉塵爆発を防止し作業環境を改善できるのみならず、チキソトロピックな液体は槽内の撹拌によって粘度が低下するので、後段のジェットポンプの吸引性能を損なうことなく高添加率かつ高粘度の混合処理が可能となる。  According to the first aspect of the present invention, even if the powder is a micron-sized ultrafine powder, the powder will not scatter in the mixing operation. In addition, since the viscosity of the thixotropic liquid is reduced by stirring in the tank, a mixing process with a high addition rate and a high viscosity can be performed without impairing the suction performance of the subsequent jet pump.

請求項２に記載の発明は高圧水蒸気の利用が可能であり且つ液中への水蒸気凝縮水の混入が許されるケースに利用されるもので、本発明によれば、水蒸気エゼクターの特性として水蒸気凝縮に際して衝撃波が発生するので液状物質の粉砕・均質化が一層効果的に行われると共に、構造がより簡単かつ小型化できる。  The invention according to claim 2 is used in a case where high-pressure steam can be used and mixing of steam-condensed water into the liquid is allowed. According to the present invention, steam condensation is used as a characteristic of the steam ejector. At this time, a shock wave is generated, so that the liquid material is more effectively pulverized and homogenized, and the structure can be simplified and reduced in size.

請求項３に記載の発明は循環液が比較的低粘度のケースに利用されるもので、本発明によれば、高価な回転撹拌装置が省略され構造が簡単かつ省エネが可能となる。  The invention according to claim 3 is used for the case where the circulating fluid has a relatively low viscosity. According to the present invention, an expensive rotary stirring device is omitted, and the structure is simple and energy saving is possible.

請求項４に記載の発明によれば、ジェット流と粉体との比接触面積（同一ジェット流量に対する粉体の接触面積）が増大するので、相対的に高い吸引混合効果が得られる。  According to the fourth aspect of the present invention, since the specific contact area between the jet stream and the powder (the contact area of the powder with respect to the same jet flow rate) is increased, a relatively high suction mixing effect can be obtained.

請求項５に記載の発明によれば、所定濃度の均質な混合液を連続的に排出し得るシステムを構築することができる。  According to the fifth aspect of the present invention, it is possible to construct a system capable of continuously discharging a homogeneous mixed liquid having a predetermined concentration.

以下、本発明の実施の形態を図に基づいて説明する。図１は本発明の実施例の説明図、図２は図１のＸ視矢断面図、図３は本発明の他の実施例の説明図、をそれぞれ示す。  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view of an embodiment of the present invention, FIG. 2 is a sectional view taken along the line X in FIG. 1, and FIG. 3 is an explanatory view of another embodiment of the present invention.

図１，２において、液槽１と加圧ポンプ２及びジェットポンプ３を直列に連結して循環流路４を形成し、ジェットポンプ３の液噴射ノズル７とディフューザ８の間の低圧室９に粉体調整弁５を介して粉体槽６を繋ぐと、液噴射ノズル７のジェット流で生じた真空により低圧室９内に粉体１０が吸引され、ディフューザ８の喉部で循環液と激しく混合し、混合液はディフューザ８で圧力を回復して循環流路４を経て液槽１に還流される。ここで、液噴射ノズル７の出口を扁平に構築し，ジェット流を扁平として粉体との比接触面積（同一ジェット流量に対する粉体の接触面積）を増大させることによりジェット流の吸引混合効果が一層高められる。尚、混合液中に粉体以外に液体を混合する必要があれば、低圧室９に別途調整弁を介して該液体の供給管を接続すればよい（図示せず）。  1 and 2, a liquid tank 1, a pressurizing pump 2, and a jet pump 3 are connected in series to form a circulation channel 4, and a low pressure chamber 9 between a liquid jet nozzle 7 and a diffuser 8 of the jet pump 3 is provided. When the powder tank 6 is connected via the powder adjustment valve 5, the powder 10 is sucked into the low pressure chamber 9 by the vacuum generated by the jet flow of the liquid injection nozzle 7, and violently circulates with the circulating liquid at the throat of the diffuser 8. The mixed liquid is recovered in pressure by the diffuser 8 and is returned to the liquid tank 1 through the circulation channel 4. Here, the outlet of the liquid jet nozzle 7 is constructed flat, and the jet flow is flattened to increase the specific contact area with the powder (powder contact area for the same jet flow rate). Increased further. If it is necessary to mix a liquid other than powder in the mixed liquid, a supply pipe for the liquid may be connected to the low pressure chamber 9 via a separate adjustment valve (not shown).

以上の構成において、粉体調整弁５の操作により液体循環量に対する粉体の添加量を加減すれば、混合液の粉体濃度や混合効果を任意に調整することができる。更に、循環流路４に原液供給管２１と混合液排出管２２をそれぞれ原液供給調整弁２３及び混合液排出調整弁２４を介して接続すると共に混合液の濃度計測器２０を設ければ、原液の供給量に対する粉体の添加量と混合液の循環量及び排出量を調整することによって、所定濃度の均質な混合液を連続的に排出させることができる。  In the above configuration, the powder concentration and the mixing effect of the liquid mixture can be arbitrarily adjusted by adjusting the powder addition amount with respect to the liquid circulation amount by operating the powder adjustment valve 5. Further, if the stock solution supply pipe 21 and the mixed solution discharge pipe 22 are connected to the circulation channel 4 via the stock solution supply adjusting valve 23 and the mixed solution discharge adjusting valve 24 and the mixed solution concentration measuring device 20 is provided, the stock solution By adjusting the added amount of the powder and the circulation amount and discharge amount of the mixed solution with respect to the supply amount, a homogeneous mixed solution having a predetermined concentration can be continuously discharged.

以上の操作において、混合液中の粉体濃度が増加して液の粘度が高まるとジェットポンプの真空形成が困難となるが、液槽１に撹拌機能を備えることにより、チキソトロピックな液体は粘度が低下するので、混合液の粉体濃度を増加せしめることが可能になる。この撹拌方式としては、図１、２に示すように、液槽１の上部に循環流路４の液槽入口１１を接線方向に接続して液槽内に旋回流１３を生成せしめると共に、液槽１の内壁に旋回流に対向する邪魔板１２を設けるとよい。このような簡易な構成によって、旋回流１３と邪魔板１２との衝突作用及び邪魔板１２の裏側に発生する渦流１４の作用ならびに液槽中心に生ずる逆流１５の不安定振動の作用などにより、液の撹拌・分散・均質化が効果的に行われる。尚、液槽１内の上端に周知の回転羽根（図示せず）を設ければ旋回流１３の作用を助勢することができる。更に、粉体濃度が高く液の粘度が高い場合は、図２に示す回転スクリュー１６のような周知の高粘度液用撹拌翼（化学工学便覧参照）を用いるとよい。  In the above operation, when the concentration of the powder in the mixed liquid increases and the viscosity of the liquid increases, it becomes difficult to form a vacuum in the jet pump. However, by providing the liquid tank 1 with a stirring function, the thixotropic liquid has a viscosity. As a result, the powder concentration of the mixed solution can be increased. As this stirring method, as shown in FIGS. 1 and 2, the liquid tank inlet 11 of the circulation channel 4 is connected to the upper part of the liquid tank 1 in a tangential direction to generate a swirl flow 13 in the liquid tank, A baffle plate 12 facing the swirling flow may be provided on the inner wall of the tank 1. With such a simple configuration, the liquid flows due to the collision between the swirling flow 13 and the baffle plate 12, the action of the vortex 14 generated on the back side of the baffle 12 and the unstable vibration of the backflow 15 generated at the center of the liquid tank. Is effectively agitated, dispersed and homogenized. If a known rotary blade (not shown) is provided at the upper end in the liquid tank 1, the action of the swirling flow 13 can be assisted. Furthermore, when the powder concentration is high and the viscosity of the liquid is high, a known high-viscosity liquid stirring blade (see the Chemical Engineering Handbook) such as the rotary screw 16 shown in FIG. 2 may be used.

また、施設内で高圧水蒸気を利用でき且つ液中への水分混入が許される条件であれば、図３に示すように、加圧ポンプ２を廃し、ジェットポンプ３の液噴射ノズル７内に高圧水蒸気１８を噴射する蒸気ノズル１７を設けて水蒸気エゼクター１９を構築するとよい。このような構成により、水蒸気エゼクターの特性として水蒸気凝縮に際して衝撃波が発生するので、液状物質の粉砕・均質化が一層効果的に行われると共に、構造をより簡単且つ小型化することができる。  Further, if the high-pressure steam can be used in the facility and moisture is allowed to be mixed into the liquid, the pressurizing pump 2 is eliminated and the high-pressure water is injected into the liquid injection nozzle 7 of the jet pump 3 as shown in FIG. It is preferable to construct a water vapor ejector 19 by providing a vapor nozzle 17 for injecting water vapor 18. With such a configuration, a shock wave is generated at the time of steam condensation as a characteristic of the steam ejector, so that the liquid material can be pulverized and homogenized more effectively, and the structure can be more easily and miniaturized.

本発明の実施例の説明図  Explanatory drawing of the Example of this invention 図１のＸ視矢断面図  X sectional view of FIG. 本発明の他の実施例の説明図  Explanatory drawing of the other Example of this invention

１ 液槽
２ 加圧ポンプ
３ ジェットポンプ
４ 循環流路
５ 粉体調整弁
６ 粉体槽
７ 液噴射ノズル
８ ディフューザ
９ 低圧室
１０ 粉体
１１ 液槽入口
１２ 邪魔板
１３ 旋回流
１４ 渦流
１５ 逆流
１６ 回転スクリュー
１７ 蒸気ノズル
１８ 高圧水蒸気
１９ 水蒸気エゼクター
２０ 濃度計測器
２１ 原液供給管
２２ 混合液排出管
２３ 原液供給調整弁
２４ 混合液排出調整弁DESCRIPTION OF SYMBOLS 1 Liquid tank 2 Pressure pump 3 Jet pump 4 Circulation flow path 5 Powder control valve 6 Powder tank 7 Liquid injection nozzle 8 Diffuser 9 Low pressure chamber 10 Powder 11 Liquid tank inlet 12 Baffle plate 13 Swirling flow 14 Vortex flow 15 Backflow 16 Rotating screw 17 Steam nozzle 18 High pressure steam 19 Steam ejector 20 Concentration measuring device 21 Stock solution supply pipe 22 Mixture solution discharge pipe 23 Stock solution supply adjustment valve 24 Mixture solution discharge adjustment valve

Claims (5)

撹拌機能を備えた液槽及び加圧ポンプならびにジェットポンプを直列に連結して循環流路を形成すると共に、該ジェットポンプの低圧室に調整弁を介して粉体を供給し液体に粉体を吸引混合せしめることを特徴とする、液体と粉体の混合装置。  A liquid tank having a stirring function, a pressure pump, and a jet pump are connected in series to form a circulation channel, and the powder is supplied to the low-pressure chamber of the jet pump via a regulating valve to supply the powder to the liquid. A device for mixing liquid and powder, characterized by suction mixing. 前記加圧ポンプを水蒸気エゼクターにすると共に前記ジェットポンプと一体化することを特徴とする、請求項１に記載の液体と粉体の混合装置。  The liquid and powder mixing apparatus according to claim 1, wherein the pressurizing pump is a water vapor ejector and is integrated with the jet pump. 前記液槽の上部に前記循環流路の入口を接線方法に接続して液槽内に旋回流を生成せしめると共に、液槽内壁に旋回流に対向する邪魔板を設けることを特徴とする、請求項１及び２に記載の液体と粉体の混合装置。  The inlet of the circulation channel is connected to the upper part of the liquid tank by a tangential method to generate a swirling flow in the liquid tank, and a baffle plate facing the swirling flow is provided on the inner wall of the liquid tank. Item 3. A liquid and powder mixing apparatus according to Item 1 or 2. 前記ジェットポンプのノズル出口を扁平に構築し、ジェット流を扁平として粉体との比接触面積を増大させることを特徴とする、請求項１及び２に記載の液体と粉体の混合装置。  3. The liquid / powder mixing apparatus according to claim 1 or 2, wherein a nozzle outlet of the jet pump is constructed flat, and the specific contact area with the powder is increased by making the jet flow flat. 請求項１〜請求項４に記載の混合装置に加えて、循環流路に調整弁を介して原液供給管と混合液排出管を接続すると共に混合液の濃度計測器を設け、原液の供給量に対する粉体の添加量と混合液の循環量及び排出量を調整することによって所定濃度の均質な混合液を連続的に排出せしめ得ることを特徴とする、液体と粉体の混合システム。  In addition to the mixing apparatus according to claim 1 to claim 4, a raw solution supply pipe and a mixed liquid discharge pipe are connected to the circulation channel via a regulating valve, and a concentration measuring device for the mixed liquid is provided to supply the raw solution. A liquid-powder mixing system characterized in that a homogeneous mixed liquid having a predetermined concentration can be continuously discharged by adjusting the amount of powder added to the liquid and the circulation amount and discharge amount of the mixed liquid.
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EP2648833A2 (en) * 2010-12-09 2013-10-16 Akzo Nobel Coatings International B.V. An assembly
CN103691339A (en) * 2013-12-31 2014-04-02 昆明特康科技有限公司 Solid-liquid mixing equipment
CN104110233A (en) * 2014-07-25 2014-10-22 中国石油天然气股份有限公司 Profile control and displacement system and chemical preparation device for profile control and displacement
JP2017529229A (en) * 2014-08-05 2017-10-05 エコラボ ユーエスエー インコーポレイティド Apparatus and method for dispensing a solution from a solid product
JP2017202431A (en) * 2016-05-09 2017-11-16 日本スピンドル製造株式会社 Dispersive mixing device and its operational method
CN108295754A (en) * 2018-02-26 2018-07-20 福州法莫优科机械科技有限公司 The filling integrated apparatus of emulsifying and its application method
CN110665437A (en) * 2019-10-31 2020-01-10 四川恩特普环保科技有限公司 Powder mixing and stirring system
CN110773092A (en) * 2019-10-21 2020-02-11 浙江省天正设计工程有限公司 Device and process for continuously conveying and batching powder
US11278922B2 (en) 2018-02-13 2022-03-22 Ecolab Usa Inc. Portable solid product dispenser
JP7495158B2 (en) 2018-11-26 2024-06-04 アクアインテック株式会社 Mixing tank

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JP2011083739A (en) * 2009-10-19 2011-04-28 Izumi Food Machinery Co Ltd Dissolving device
CN101927140A (en) * 2010-08-19 2010-12-29 重庆汉能环保工程技术有限公司 Adaptive feeding system and control method thereof
EP2648833A2 (en) * 2010-12-09 2013-10-16 Akzo Nobel Coatings International B.V. An assembly
EP2648833B1 (en) * 2010-12-09 2017-04-26 Akzo Nobel Coatings International B.V. An assembly for the production of dispersions
CN103691339A (en) * 2013-12-31 2014-04-02 昆明特康科技有限公司 Solid-liquid mixing equipment
CN104110233A (en) * 2014-07-25 2014-10-22 中国石油天然气股份有限公司 Profile control and displacement system and chemical preparation device for profile control and displacement
US10549245B2 (en) 2014-08-05 2020-02-04 Ecolab Usa Inc. Apparatus and method for dispensing solutions from solid products
JP2017529229A (en) * 2014-08-05 2017-10-05 エコラボ ユーエスエー インコーポレイティド Apparatus and method for dispensing a solution from a solid product
JP2017202431A (en) * 2016-05-09 2017-11-16 日本スピンドル製造株式会社 Dispersive mixing device and its operational method
US11278922B2 (en) 2018-02-13 2022-03-22 Ecolab Usa Inc. Portable solid product dispenser
US11931759B2 (en) 2018-02-13 2024-03-19 Ecolab Usa Inc. Portable solid product dispenser
CN108295754A (en) * 2018-02-26 2018-07-20 福州法莫优科机械科技有限公司 The filling integrated apparatus of emulsifying and its application method
JP7495158B2 (en) 2018-11-26 2024-06-04 アクアインテック株式会社 Mixing tank
CN110773092A (en) * 2019-10-21 2020-02-11 浙江省天正设计工程有限公司 Device and process for continuously conveying and batching powder
CN110665437A (en) * 2019-10-31 2020-01-10 四川恩特普环保科技有限公司 Powder mixing and stirring system
CN110665437B (en) * 2019-10-31 2024-04-16 四川恩特普环保科技有限公司 Powder mixing and stirring system

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