WO2021131333A1 - 気液混合装置および混合液の製造方法 - Google Patents

気液混合装置および混合液の製造方法 Download PDF

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Publication number
WO2021131333A1
WO2021131333A1 PCT/JP2020/041200 JP2020041200W WO2021131333A1 WO 2021131333 A1 WO2021131333 A1 WO 2021131333A1 JP 2020041200 W JP2020041200 W JP 2020041200W WO 2021131333 A1 WO2021131333 A1 WO 2021131333A1
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WO
WIPO (PCT)
Prior art keywords
gas
liquid
stirring blade
mixing device
storage tank
Prior art date
Application number
PCT/JP2020/041200
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English (en)
French (fr)
Japanese (ja)
Inventor
塩田　剛太郎
明 岡本
岡本　太郎
孝雄 菊池
Original Assignee
株式会社メディプラス製薬
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Priority to JP2021566881A priority Critical patent/JPWO2021131333A1/ja
Publication of WO2021131333A1 publication Critical patent/WO2021131333A1/ja

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    • 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
    • B01F35/712—Feed mechanisms for feeding fluids
    • 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
    • B01F23/20—Mixing gases with liquids
    • 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
    • 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
    • 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
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/7176—Feed mechanisms characterised by the means for feeding the components to the mixer using pumps
    • 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
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/71805—Feed mechanisms characterised by the means for feeding the components to the mixer using valves, gates, orifices or openings
    • 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
    • B01F35/90—Heating or cooling systems
    • 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
    • B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms 
    • 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
    • B01F27/91—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with propellers
    • 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
    • B01F27/92—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with helices or screws

Definitions

  • the present invention relates to a gas-liquid mixer and a method for producing a mixed liquid.
  • Patent Document 1 discloses a gas-liquid mixing device including an air diffuser tube, a draft tube, and a stirring blade arranged in the draft tube.
  • an object of the present invention is to provide a gas-liquid mixer capable of efficiently mixing a gas with a liquid with a simple configuration.
  • the gas-liquid mixing device of the present invention (hereinafter, also referred to as “mixing device”) includes a storage tank, a first stirring blade, and a second stirring blade.
  • the storage tank The liquid can be stored, and the liquid and the gas can be mixed inside the liquid.
  • the first stirring blade is At the time of stirring, a downward flow can be generated in the liquid from the liquid surface of the liquid toward the bottom surface of the storage tank, and at the time of stirring, the gas existing above the liquid at the interface between the gas and the liquid. And the liquid can be mixed
  • the second stirring blade It is possible to generate circulation of the liquid in the storage tank.
  • the method for producing a mixed liquid of the present invention uses the gas-liquid mixing apparatus of the present invention.
  • the process of introducing the liquid into the storage tank and The step of rotating the first stirring blade and the second stirring blade to mix the gas and the liquid is included.
  • a gas can be efficiently mixed with a liquid with a simple structure.
  • FIG. 1 is a schematic cross-sectional view showing an example of the configuration of the mixing device according to the first embodiment
  • FIG. 1A is a schematic cross-sectional view showing the configuration of the mixing device when not agitated
  • FIG. It is a schematic cross-sectional view which shows the structure of the mixing apparatus of.
  • FIG. 2 is a schematic cross-sectional view showing another example of the configuration of the mixing device according to the first embodiment.
  • FIG. 3 is a schematic cross-sectional view showing the configuration of the mixing device according to the second embodiment
  • FIG. 3A is a schematic cross-sectional view showing the configuration of the mixing device when not agitated
  • FIG. 3B is a schematic cross-sectional view showing the configuration of the mixing device when agitated.
  • FIG. 4 is a schematic cross-sectional view showing the configuration of the mixing device according to the third embodiment
  • FIG. 4A is a schematic cross-sectional view showing the configuration of the mixing device when not agitated (before degassing)
  • FIG. 4B is a schematic cross-sectional view.
  • It is a schematic cross-sectional view which shows the structure of the mixing apparatus after deaeration
  • (C) is a schematic cross-sectional view which shows the structure of the mixing apparatus at the time of stirring.
  • 5A and 5B are schematic cross-sectional views showing the configuration of the mixing device according to the fourth embodiment, FIG.
  • FIG. 5A is a schematic cross-sectional view showing the configuration of the mixing device when not agitated
  • FIG. It is a schematic cross-sectional view which shows the structure of an apparatus.
  • 6A and 6B are schematic cross-sectional views showing the configuration of the mixing device according to the fifth embodiment
  • FIG. 6A is a schematic cross-sectional view showing the configuration of the mixing device when not agitated
  • FIG. It is a schematic cross-sectional view which shows the structure of an apparatus.
  • 7A and 7B are schematic cross-sectional views showing another example of the configuration of the mixing device according to the first embodiment
  • FIG. 7A is a schematic cross-sectional view showing the configuration of the mixing device when not agitated
  • FIG. 7B is a schematic cross-sectional view showing the configuration of the mixing device when not agitated. It is a schematic cross-sectional view which shows the structure of the mixing apparatus at the time of stirring.
  • FIG. 8 is a schematic cross-sectional view showing another example of the configuration of the mixing device according to the first embodiment
  • FIG. 8A is a schematic cross-sectional view showing the configuration of the mixing device when not agitated
  • FIG. 8B is a schematic cross-sectional view showing the configuration of the mixing device when not agitated. It is a schematic cross-sectional view which shows the structure of the mixing apparatus at the time of stirring.
  • mixing means mixing two or more objects, and may be mixed uniformly or unevenly.
  • the object is a gas and a liquid
  • the “mixing” can also be said to disperse the gas into the liquid, for example.
  • gas-liquid mixing may mean mixing a gas with a liquid, that is, dispersing the gas in a liquid, and the gas exists in a state of being dissolved in the liquid after being mixed with the liquid. It may exist in an undissolved state.
  • the type of the "gas”, that is, the gas type is not particularly limited, and examples thereof include hydrogen, oxygen, ozone, carbon monoxide, carbon dioxide, nitric oxide, ammonia, nitrogen, water vapor, and air.
  • the gas may be composed of one kind of gas or may be composed of a plurality of kinds of gases.
  • the type of the "liquid” is not particularly limited, and examples thereof include an aqueous solvent and a non-aqueous solvent.
  • the aqueous solvent include pure water, distilled water, water such as ion-exchanged water; an electrolyte solution; a buffer solution; and the like.
  • the non-aqueous solvent include organic solvents, and specific examples thereof include glycerin, polyethylene glycol (PEG), propylene glycol (propane-1,2-diol, PG), butylene glycol (1,3-butanediol, etc.).
  • BG polyhydric alcohols such as dipropylene glycol (DPG); monohydric alcohols such as ethanol and methanol; and the like.
  • the glycerin may be a simple substance glycerin or a glycerin polymer.
  • the glycerin polymer include diglycerin and polyglycerin.
  • the glycerin may be a glycerin derivative.
  • the glycerin derivative is, for example, a compound obtained by introducing a modification into glycerin and a glycerin polymer.
  • the liquid may be composed of one kind of liquid or may be composed of a plurality of kinds of liquids.
  • the mixing apparatus and the manufacturing method of the present invention will be described in detail with reference to the drawings.
  • the present invention is not limited to the following description.
  • the same parts may be designated by the same reference numerals and the description thereof may be omitted.
  • the structure of each part may be simplified as appropriate, and the dimensional ratio of each part may be shown schematically, which is different from the actual one.
  • the respective embodiments can be referred to each other.
  • the vertical direction means the direction perpendicular to the bottom surface of the storage tank.
  • FIG. 1 is a schematic cross-sectional view showing the configuration of the mixing device 100 of the first embodiment
  • FIG. 1A is a schematic cross-sectional view showing the configuration of the mixing device 100 when not agitated
  • FIG. 1B is a schematic cross-sectional view showing the configuration of the mixing device 100 when agitated.
  • the mixing device 100 mainly includes a container 11 which is a storage tank, a first stirring blade 12, a second stirring blade 13, and a rotating shaft 14. Prepare as a configuration.
  • the first stirring blade 12 and the second stirring blade 13 are arranged coaxially with the rotating shaft 14 from top to bottom in this order.
  • the second stirring blade 13 is arranged on the bottom end side of the container 11 of the rotating shaft 14.
  • the rotating shaft 14 hangs inward from the upper part of the container 11 at the center of the container 11.
  • the rotary shaft 14 is connected to a motor 15 which is a drive unit capable of rotating the rotary shaft 14.
  • the first stirring blade 12 and the second stirring blade 13 are in the liquid L in the container 11 when the stirring blade 12 and the second stirring blade 13 are not stirred, that is, when the motor 15 is not driven. Soaked in.
  • FIG. 1 (A) the first stirring blade 12 and the second stirring blade 13 are in the liquid L in the container 11 when the stirring blade 12 and the second stirring blade 13 are not stirred, that is, when the motor 15 is not driven. Soaked in.
  • FIG. 1 (A) the first stirring blade 12 and the second stirring blade 13 are in the liquid L in the container 11 when the stirring blade 12 and the
  • the mixing device 100 of the first embodiment includes a rotating shaft 14 and a motor 15, but the rotating shaft 14 and the motor 15 have an arbitrary configuration and may or may not have one of them. It may be provided, or both may be provided. Further, although the liquid L is introduced into the mixing device 100 of the first embodiment, the liquid L may or may not have an arbitrary configuration.
  • the container 11 can store the liquid L, and by using the first stirring blade 12 and the second stirring blade 13 described later, the liquid L and the gas can be mixed inside the container 11.
  • the gas is a gas existing in the upper space of the liquid L in the container 11.
  • the container 11 any container capable of storing the liquid L inside can be used.
  • the shape of the container 11 is a bottomed tubular shape, but the shape is not particularly limited and can be any shape. Since the liquid L can be efficiently circulated by the second stirring blade 13 described later, for example, the container 11 preferably has a shape with less unevenness on the inner peripheral surface of the container 11.
  • the volume of the container 11 is not particularly limited, and can be appropriately set according to the volume of the mixed liquid to be produced, for example.
  • Examples of the material of the container 11 include metals such as iron, stainless steel, copper, and aluminum; glass; plastics such as polyethylene terephthalate (PET), polycarbonate (PC), vinyl chloride, acrylic resin, methacrylic resin, and fluororesin; and the like. Be done.
  • the first stirring blade 12 can generate a downward flow in the liquid L from the liquid level of the liquid L toward the bottom surface of the container 11 which is a storage tank. Therefore, as shown in FIG. 1B, the stirring of the first stirring blade 12 lowers the liquid level above the first stirring blade 12, and the first stirring blade 12 is a liquid L and a gas. It comes to exist at the interface with (gas-liquid interface). Then, the first stirring blade 12 can mix the gas existing in the upper part of the liquid L and the liquid L, that is, the gas existing in the upper part of the liquid L can be taken into the liquid L as bubbles, for example. become.
  • the gas is efficiently taken into the liquid L, and the taken-in gas can be pushed out to the bottom surface side of the container 11 by the downward flow, so that the taken-in gas immediately reaches the liquid surface. It can be prevented from rising and separating from the liquid L.
  • the gas taken in by the first stirring blade 12 can be in contact with the liquid L for a longer time. Therefore, according to the first stirring blade 12, the gas and the liquid L can be efficiently mixed, and the gas and the liquid L can be brought into contact with each other for a longer time. Therefore, for example, the gas can be efficiently dissolved in the liquid L. it can.
  • a part or all of the first stirring blade 12 may be present at the gas-liquid interface at the time of stirring. That is, in the first stirring blade 12, part or all of the first stirring blade 12 is in contact with the gas-liquid interface during stirring. At the time of stirring, for example, it means a state in which the first stirring blade 12 is rotating at a substantially constant speed.
  • the first stirring blade 12 is located in the liquid L when the first stirring blade 12 is not stirred because the position of the first stirring blade 12 with respect to the container 11 is constant.
  • the present invention is not limited to this, and the first stirring blade 12 may be located, for example, in the upper space of the liquid L when not stirred, or may be located at the gas-liquid interface.
  • the first stirring blade 12 is arranged on the rotating shaft 14 so as to be movable in the vertical direction, for example, and may be configured to be movable to the gas-liquid interface during stirring.
  • the unstirred state means, for example, a state in which the first stirring blade 12 is not rotating.
  • the first stirring blade 12 may have a structure capable of stirring the liquid L, and may be, for example, one blade or a plurality of blades.
  • the first stirring blade 12 can also be referred to as, for example, a stirring blade, an impeller, an impeller, or the like.
  • the stirring blade diameter d1 of the first stirring blade 12 is equal to or smaller than the diameter of the container 11 (tank diameter D), and can be set in consideration of the viscosity of the liquid L and the number of rotations of the first stirring blade 12 during stirring.
  • the blade diameter d1 is preferably set so that, for example, the ratio (d1 / D) of the blade diameter d1 to the tank diameter D is 1/3 or less.
  • the shape of the first stirring blade 12 can be set in consideration of the stirring conditions such as the viscosity (viscosity) of the liquid L and the rotation speed of the first stirring blade 12 during stirring, and the downward flow can be efficiently generated.
  • the shape of the first stirring blade 12 include turbine blades such as edged turbine blades, radial turbine blades, and axial front turbine blades; paddle blades; propeller blades; anchor blades; ribbon blades; and the like. ..
  • the ribbon blade examples include a single helical ribbon blade, a double helical ribbon blade, a helical ribbon blade such as a triple helical ribbon blade, and the like, and a double helical ribbon blade is preferable because a downward flow can be efficiently generated.
  • the first stirring blade 12 is one, but the present invention is not limited to this, and a plurality of first stirring blades 12 may be provided.
  • the material of the first stirring blade 12 can be, for example, an example of the material of the container, and is preferably metal.
  • the first stirring blade 12 may be prepared in-house or a commercially available stirring blade may be used.
  • the commercially available stirring blades include, for example, Max Blend (registered trademark) (Sumitomo Heavy Industries, Ltd.), Full Zone (registered trademark) (Shinko Environmental Solutions Co., Ltd.), and Super Mix (Satake Chemical Machinery Co., Ltd.). , HI-F mixer (manufactured by Soken Kagaku Co., Ltd.), full fine mix wing (manufactured by Aoki Co., Ltd.), etc.
  • the second stirring blade 13 can generate circulation of the liquid L in the container 11 which is a storage tank at the time of stirring.
  • the first stirring blade 12 takes in the gas and pushes the gas to the bottom surface side of the container 11, that is, the second stirring blade 13 side by the downward flow. Since the second stirring blade 13 can generate circulation of the liquid L in the container 11, the gas taken in by the first stirring blade 12 can be dispersed in the entire liquid L. Therefore, according to the second stirring blade 13, the gas and the liquid L can be efficiently mixed, so that, for example, the gas can be efficiently dissolved in the liquid L.
  • the number of the second stirring blades 13 is one, but the present invention is not limited to this, and a plurality of second stirring blades 13 may be provided.
  • each of the second stirring blades 13 is arranged in the vertical direction of the rotation shaft 14.
  • the second stirring blade 13 includes, for example, a propeller propulsion blade. Is preferable.
  • each of the second stirring blades 13 may have the same shape or a different shape, but preferably includes a combination of a propeller propulsion blade and a turbine blade.
  • each of the second stirring blades 13 is arranged, for example, in the vertical direction of the rotation shaft 14. A form including a plurality of second stirring blades 13 will be described later.
  • the second stirring blade 13 may have a structure capable of stirring the liquid L, and may be, for example, one blade or a plurality of blades.
  • the second stirring blade 13 can also be referred to as, for example, a stirring blade, an impeller, an impeller, or the like.
  • the stirring blade diameter d2 of the second stirring blade 13 is equal to or smaller than the diameter of the container 11 (tank diameter D, maximum inner diameter of the container 11). It can be set in consideration of the number.
  • the blade diameter d2 is relatively large, for example, the downward flow generated by the first stirring blade 12 can be more strongly dispersed in the radial direction of the container 11 (outer peripheral direction of the container 11), so that the liquid L can be mixed.
  • the blade diameter d2 is made relatively small, for example, the downward flow generated by the first stirring blade 12 is weakly dispersed in the radial direction of the container 11 (outer peripheral direction of the container 11), so that the liquid is used.
  • the circulation of L becomes relatively weak.
  • the blade diameter d2 is preferably set so that, for example, the ratio (d2 / D) of the blade diameter d2 to the tank diameter D is about 1/3 or less.
  • the blade diameter d1 of the first stirring blade 12 and the blade diameter d2 of the second stirring blade 13 may be the same or different.
  • the blade diameter d1 of the first stirring blade 12 and the blade diameter d2 of the second stirring blade 13 are different, for example, the gas contained in the downward flow generated by the first stirring blade 12 is more efficiently liquid L. It is preferable that the blade diameter d2 of the second stirring blade 13 is larger than the blade diameter d1 of the first stirring blade 12 (d1 ⁇ d2).
  • the second stirring blade 13 is arranged coaxially with the first stirring blade 12, but may be arranged on a different axis.
  • the mixing device 100 can efficiently mix the gas and the liquid L by arranging the first stirring blade 12 and the second stirring blade 13 coaxially.
  • the description of the shape and material of the first stirring blade 12 can be incorporated.
  • the second stirring blade 13 has a configuration for generating circulation of the liquid L in the container 11 which is a storage tank at the time of stirring. Therefore, when the resistance of the liquid L increases, the rotating shaft 14 Axle shake is likely to occur. Therefore, the shape of the second stirring blade 13 is preferably small and can work efficiently, and a turbine blade is a specific example. When the second stirring blade 13 is a turbine blade, for example, the liquid L can be efficiently circulated.
  • the second stirring blade 13 may be prepared in-house or a commercially available stirring blade may be used.
  • the commercially available stirring blades include, for example, Max Blend (registered trademark) (Sumitomo Heavy Industries, Ltd.), Full Zone (registered trademark) (Shinko Environmental Solutions Co., Ltd.), and Super Mix (Satake Chemical Machinery Co., Ltd.). , HI-F mixer (manufactured by Soken Kagaku Co., Ltd.), full fine mix wing (manufactured by Aoki Co., Ltd.), etc.
  • the rotating shaft 14 hangs down in the container 11 which is a storage tank.
  • the rotating shaft 14 can also be called a shaft, for example.
  • the rotating shaft 14 rotates around the shaft by the rotational movement around the shaft (circumferential direction of the shaft) of the motor 15 which is a drive unit described later, so that the first stirring blade 12 and the second stirring blade 13 are motorized.
  • the rotational motion generated in 15 is transmitted.
  • the first stirring blade 12 and the second stirring blade 13 rotate around the axis to stir the liquid L.
  • the shape of the rotating shaft 14 may be, for example, a cylindrical column; a polygonal columnar column such as a triangular prism or a quadrangular prism.
  • the material of the rotating shaft 14 can be referred to, for example, the description of the material of the container 11, and is preferably metal.
  • the rotating shaft 14 is arranged in the central portion in the container 11, but the present invention is not limited to this, and the rotating shaft 14 may be arranged in a region (eccentricity) other than the central portion. Further, in the present embodiment, the position of the rotating shaft 14 is fixed (fixed type), but the present invention is not limited to this, and the position of the rotating shaft 14 may be changeable. In this case, the rotating shaft 14 can also be said to be a portable rotating shaft.
  • the rotating shaft 14 is arranged so as to be substantially orthogonal to the bottom surface of the container 11, that is, substantially vertically, but is inclined with respect to the rotating shaft 14 and the bottom surface of the container 11. It may be arranged so as to be substantially parallel to the bottom surface.
  • first stirring blade 12 and the second stirring blade 13 are arranged on one rotating shaft 14, but the present invention is not limited to this, and two rotating shafts 14 are used.
  • the first stirring blade 12 and the second stirring blade 13 may be arranged on the rotating shaft 14, respectively.
  • the end portion of the rotating shaft 14 on the bottom surface side of the container 11 is arranged so as to be separated from the bottom surface of the container 11, but the present invention is not limited to this, and the container 11 of the rotating shaft 14 is not limited to this.
  • the bottom end of the container 11 may be arranged so as to be in direct or indirect contact with the bottom surface of the container 11.
  • a bearing is provided at the contact portion between the rotating shaft 14 and the bottom surface of the container 11, and the rotating shaft 14 is in contact with the bottom surface of the container 11 via the bearing.
  • the rotating shaft 14 is configured as a member independent of the first stirring blade 12 and the second stirring blade 13, but the rotating shaft 14 has the first stirring blade 12 and the second stirring blade 12. It may be integrally molded with at least one of the blades 13.
  • the motor 15 rotates the rotating shaft 14 around the shaft to rotate the first stirring blade 12 and the second stirring blade 13.
  • a prime mover for a stirrer such as an electric motor, an air motor, or a hydraulic motor can be used.
  • the liquid L is introduced into the container 11 of the mixing device 100 (introduction step).
  • the volume of the liquid L is, for example, the volume at which the first stirring blade 12 is immersed in the liquid L.
  • the first stirring blade 12 and the second stirring blade 13 are rotated to mix the gas and the liquid L (mixing step).
  • the motor 15 is driven to rotate the rotating shaft 14 around the shaft, thereby rotating the first stirring blade 12 and the second stirring blade 13.
  • the first stirring blade 12 mixes the liquid L and the gas and pushes the gas toward the bottom surface of the container 11.
  • the second stirring blade 13 circulates the liquid L and disperses the gas in the liquid L.
  • the rotation speeds of the first stirring blade 12 and the second stirring blade 13 can be set according to, for example, the viscosity and temperature of the liquid L, and as specific examples, 100 to 10000 rpm, 250 to 5000 rpm, 500. ⁇ 3000 rpm can be raised.
  • the mixing device 100 of the first embodiment can produce a mixed liquid.
  • the first stirring blade 12 efficiently takes in the gas on the upper part of the liquid L into the liquid L, and pushes the taken-in gas into the bottom surface side of the container 11 by a downward flow. it can. Further, according to the mixing device 100 of the first embodiment, the gas extruded by the downward flow can be circulated in the liquid L by the second stirring blade 13, that is, dispersed in the entire liquid L. Can be done. Therefore, according to the mixing device 100 of the first embodiment, the gas is efficiently liquid L with a simple configuration of two (two types) stirring blades, that is, the first stirring blade 11 and the second stirring blade 12. Can be mixed inside.
  • one set of the first stirring blade 12, the second stirring blade 13, and the rotating shaft 14 is arranged in the mixing device 100, but a plurality of sets may be arranged. .. As a result, the mixing device 100 can more efficiently mix the gas into the liquid L.
  • the container 11 is a container with an upper opening, and has a configuration in which the gas inside the container 11 and the gas outside the container 11 can be exchanged.
  • the container 11 may have a configuration capable of blocking the exchange between the gas inside the container and the gas with the outside, or a configuration in which the exchange is blocked.
  • FIG. 2 shows an example of the configuration in which the storage tank can block the exchange of the gas inside and the gas outside.
  • FIG. 2 is a schematic cross-sectional view showing another example of the configuration of the mixing device according to the first embodiment.
  • the mixing device 110 includes a container body 11a having an upper opening and a lid body 11b as the container 11, and the lid body 11b can openably cover the upper opening of the container body 11a. .. That is, the lid body 11b can block the exchange of gas inside and outside the container body 11a.
  • the space surrounded by the container body 11a, the liquid L, and the lid body 11b can also be referred to as a gas supply chamber.
  • the configuration of the mixing device 110 is the same as that of the mixing device 100, and the description thereof can be incorporated. Since the mixing device 110 can block the exchange of gas inside and outside the container body 11a, for example, a gas to be mixed with the liquid L is introduced into the upper space of the liquid L in the container body 11a, and the inside and outside of the container body 11a are introduced. By blocking the exchange of the gas in the above, a desired mixture of the liquid L and the gas can be produced.
  • the lid body 11b is removable from the container body 11a, but may be formed integrally.
  • the container 11 has an opening through which the liquid L can be introduced and discharged inside and outside the container 11.
  • the container 11b may have an opening through which gas can be introduced and discharged inside and outside the container 11 or a gas supply unit described later.
  • the mixing device 110 may include a liquid supply unit capable of supplying the liquid L from the outside of the container 11 to the inside of the container 11.
  • the inner end of the container 11 of the liquid supply unit communicates with the inside of the container 11. Therefore, it can be said that the liquid supply unit inserts the lid 11b so that the inside and outside of the container 11 can communicate with each other, for example.
  • the end opposite to the inside of the container 11 is connected to, for example, a liquid storage unit such as a tank capable of supplying a desired liquid L or a liquid supply unit such as a pump.
  • the liquid supply unit may have a structure capable of supplying the liquid L from the outside of the container 11 into the container 11, for example.
  • the liquid supply unit examples include a combination of a hollow pipe and a plug that can be opened / closed, a valve that can be opened / closed, or a one-way valve.
  • the material of the liquid supply unit can be, for example, an example of the material of the container, and is preferably a metal.
  • the mixing device 110 includes the liquid supply unit, the liquid supply unit can supply the liquid L into the container 11 without opening the lid 11b. Therefore, the mixing device 110 can suppress the mixing of impurities such as dust outside the container 11.
  • the mixing device 100 of the first embodiment may further include a temperature control unit capable of adjusting the temperature of the liquid L in the container 11 which is a storage tank.
  • a temperature control unit capable of adjusting the temperature of the liquid L in the container 11 which is a storage tank.
  • the mixing device 100 can adjust the viscosity, fluidity, etc. of the liquid L by adjusting the temperature, so that even a highly viscous liquid can be suitably mixed with the gas.
  • the temperature control unit examples include a heat transfer device such as a heater; a cooling device such as a cooler; and a temperature measuring device such as a thermometer.
  • the temperature control unit may be arranged inside the container 11 or outside the container 11, for example.
  • the temperature of the liquid L can be set to, for example, 4 to 70 ° C. and 10 to 40 ° C.
  • the shapes of the first stirring blade 12 and the second stirring blade 13 are propeller blades, but the shapes of the first stirring blade 12 and the second stirring blade 13 are the same.
  • the above-mentioned shapes can be arbitrarily combined without being limited to.
  • FIG. 7 shows an example of a configuration in which a shape other than the propeller blade is adopted as the shape of the first stirring blade 12 and the second stirring blade 13.
  • 7A and 7B are schematic cross-sectional views showing another example of the configuration of the mixing device of the first embodiment
  • FIG. 7A is a schematic cross-sectional view showing the configuration of the mixing device 120 when not agitated
  • FIG. 7B is a schematic cross-sectional view showing the configuration of the mixing device 120 when not agitated.
  • It is a schematic cross-sectional view which shows the structure of the mixing apparatus 120 at the time of stirring.
  • FIG. 7 is a schematic cross-sectional view showing an example of the configuration of a mixing device 120 in which the first stirring blade 12 is a helical ribbon blade and the second stirring blade 13 is a turbine blade.
  • the mixing device 120 since the first stirring blade 12 is a helical ribbon blade, even when the liquid L is a highly viscous liquid, the gas above the liquid L is efficiently liquid. The gas taken into L and taken in can be pushed into the bottom surface side of the container 11 by a downward flow. Further, in the mixing device 120, since the second stirring blade 13 is a turbine blade, the gas pushed out by the downward flow can be efficiently circulated in the liquid L by the second stirring blade 13. That is, it can be dispersed in the entire liquid L. Therefore, the mixing device 120 can more efficiently mix the gas into the liquid L by combining the first stirring blade 12 of the helical ribbon blade and the second stirring blade 13 of the turbine blade.
  • the number of the first stirring blade 12 and the second stirring blade 13 is one, respectively, but the present invention is not limited to this, and the mixing device 100 is the first.
  • a plurality of at least one of the stirring blade 12 and the second stirring blade 13 may be provided.
  • FIG. 8 shows an example of the configuration when a plurality of second stirring blades 13 are used.
  • FIG. 8 is a schematic cross-sectional view showing another example of the configuration of the mixing device of the first embodiment
  • FIG. 8A is a schematic cross-sectional view showing the configuration of the mixing device 130 when not agitated
  • FIG. 8B is a schematic cross-sectional view showing the configuration of the mixing device 130 when not agitated. It is a schematic cross-sectional view which shows the structure of the mixing apparatus 130 at the time of stirring.
  • FIG. 8 is a schematic cross-sectional view showing an example of the configuration of a mixing device 130 including propeller propulsion blades as the first stirring blade 12 and a plurality of propeller propulsion blades and turbine blades as the second stirring blade 13.
  • the mixing device 130 includes a plurality of propeller propulsion blades and turbine blades as the second stirring blade 13, for example, the gas taken in by the first stirring blade 12 is taken in.
  • the gas can be efficiently pushed to the bottom surface side of the container 11 by the downward flow by the plurality of propeller propulsion blades which are the second stirring blades 13, and the gas can be efficiently circulated in the liquid L by the turbine blades. That is, it can be dispersed throughout the liquid L. Therefore, the mixing device 130 can efficiently mix the gas into the liquid L by including the first stirring blade 12 and the plurality of second stirring blades 13.
  • FIG. 3 is a schematic cross-sectional view showing the configuration of the mixing device 200 of the second embodiment
  • FIG. 3A is a schematic cross-sectional view showing the configuration of the mixing device 200 when not agitated
  • FIG. 3B is a schematic cross-sectional view showing the configuration of the mixing device 200 when agitated.
  • It is a schematic cross-sectional view which shows the structure of the mixing apparatus 200 of.
  • the mixing device 200 in addition to the configuration of the mixing device 100 of the first embodiment, the mixing device 200 includes a separation wall 22, a gas supply unit 23, an exhaust unit 24, and a gas supply. A chamber 25 and a gas discharge chamber 26 are provided.
  • the mixing device 200 includes a container 21 instead of the container 11, and the container 21 is composed of a container body 21a and a lid body 21b (canopy).
  • the separation wall 22 is a tubular wall, and separates the region of the upper part of the liquid L in the container 21 into two. The upper end of the separation wall 22 is connected to the lid 21b, and the lower end is immersed in the liquid L.
  • the gas supply unit 23 is inserted through the lid 21b to connect (communicate) the outside of the container 21 and the inside of the container 21 (gas supply chamber 25).
  • the exhaust unit 24 is inserted through the lid 21b to connect (communicate) the outside of the container 21 and the inside of the container 21 (gas discharge chamber 26).
  • the gas supply chamber 25 is a region surrounded by the lid 21b, the inner peripheral surface of the separation wall 22, and the liquid L.
  • the gas discharge chamber 26 is a region surrounded by the outer peripheral surface of the separation wall 22 and the liquid L. Except for this point, the configuration of the mixing device 200 of the second embodiment is the same as the configuration of the mixing device 100 of the first embodiment, and the description thereof can be incorporated.
  • the separation wall 22 is a wall that separates the upper region of the liquid L in the container 21 into two.
  • the separation wall 22 includes a gas supply chamber 25 capable of storing the gas supplied to the mixing device 200 and a gas discharge chamber 26 capable of storing the gas discharged from the mixing device 200 in the region above the liquid L. Can be separated into. That is, the separation wall 22 can separate the supplied gas and the exhausted gas. Therefore, the separation wall 22 can prevent the gas in the gas supply chamber 25 and the gas in the gas discharge chamber 26 from being mixed. Therefore, the mixing device 200 can efficiently mix the gas in the gas supply chamber 25, which will be described later, with the liquid L.
  • the separation wall 22 is formed so as to surround the region above the first stirring blade 12 in the region above the liquid L in the container 21. That is, the diameter of the separation wall 22 (d3, the diameter of the inner peripheral surface) is larger than the blade diameter (d1) of the first stirring blade 12 (d1 ⁇ d3).
  • the diameter of the separation wall 22 (d4, the diameter of the outer peripheral surface) is equal to or less than the tank diameter D of the container 21.
  • the ratio (d4 / D) of the diameter (d4) of the separation wall 22 to the tank diameter D can be set to be, for example, 0.25 to 0.5.
  • the arrangement position of the separation wall 22 can be set in consideration of, for example, the viscosity of the liquid L and the rotation speed of the first stirring blade 12 during stirring. As shown in FIG. 3B, when a downward flow is generated in the liquid L due to the rotation of the first stirring blade 12, the liquid L existing in the upper part of the first stirring blade 12 is sucked in the container 21. , The liquid level on the upper part of the first stirring blade 12 drops. It is preferable that the separation wall 22 is arranged at a position where, for example, its lower surface comes into contact with the vicinity of the edge of the lowered liquid surface.
  • the separation wall 22 and the lid body 21b are formed as separate members, but may be formed integrally.
  • the separation wall 22 is tubular, that is, its vertical cross section is formed in an arc shape, but the shape of the separation wall 22 is not limited to this, for example, a polygonal shape having a hollow vertical cross section. May be formed in.
  • the area surrounded by the inner peripheral surface of the separation wall 22 is hollow, but a part or all of the area may be filled with the same or different material as the separation wall 22 (even if it is filled). Good).
  • the mixing device 200 can reduce the volume of the gas existing in the gas supply chamber 25 at the start of stirring. Therefore, the mixing device 200 can reduce the volume of a gas other than the desired gas to be mixed with the liquid L when the desired gas is supplied and mixed through the gas supply unit 23 described later, for example.
  • the inner end of the container 21 (gas supply port 23a) of the gas supply unit 23 communicates with the gas supply chamber 25. Therefore, the gas supply unit 23 can supply a desired gas from the outside of the container 21 into the container 21. That is, the gas supply unit 23 can supply a desired gas to the gas supply chamber 25.
  • the end opposite to the gas supply chamber 25 may be opened to the air, for example, or may be connected to a gas storage unit such as a gas cylinder capable of supplying a desired gas. May be good.
  • the gas supply unit 23 may include, for example, a pretreatment unit, or may be connected to the pretreatment unit.
  • the pretreatment unit is, for example, an apparatus that physically and / or chemically treats the gas stored in the gas storage unit before supplying it into the container 21.
  • the pretreatment unit can, for example, improve the content or purity of a desired gas, generate a desired gas, or the like by the treatment.
  • the pretreatment unit may, for example, process a part of the gas supplied to the pretreatment unit, or may process the entire gas.
  • the gas stored in the gas storage unit is a precursor (raw material) of a desired gas to be supplied into the container 21, the pretreatment unit is an apparatus for generating a desired gas from the precursor. May be good.
  • the pretreatment unit may, for example, irradiate the oxygen with ultraviolet rays; silent discharge treatment, corona.
  • An ozone generator that generates ozone by discharge treatment such as discharge treatment can be used.
  • the end opposite to the gas discharge chamber 26 may be opened to the air or may be connected to a gas storage unit such as a gas cylinder capable of recovering the gas.
  • the gas storage unit may be connected to, for example, the gas supply unit 23. In this case, the gas in the gas discharge chamber 26 is recovered in the gas storage unit and is resupplied into the container 21 from the gas supply unit 23.
  • the recovered gas may be refreshed.
  • the refreshing process may be a process of removing the different gas, or a process of converting the different gas into the same gas (desired gas) as the gas at the time of supply.
  • the refresh treatment is, for example, an ultraviolet irradiation treatment of the recovered oxygen; a silent discharge treatment, a corona discharge treatment, or the like. Discharge treatment; and the like to generate ozone from the oxygen.
  • the refresh process can be performed, for example, by using the apparatus in the pretreatment unit.
  • the exhaust unit 24 may include, for example, a gas processing unit, or may be connected to the gas processing unit.
  • the gas treatment unit performs a treatment such as adsorption treatment with a porous substance such as activated carbon, heat treatment, chemical treatment, catalytic reaction treatment, or UV irradiation treatment on the gas passing through the exhaust unit 24 to make it more specific.
  • a treatment such as adsorption treatment with a porous substance such as activated carbon, heat treatment, chemical treatment, catalytic reaction treatment, or UV irradiation treatment on the gas passing through the exhaust unit 24 to make it more specific.
  • the treatment can be, for example, a detoxification (detoxification) treatment.
  • the gas processing method can be appropriately selected according to the type of the gas.
  • the gas processing unit is an ozone decomposition device (ozone killer).
  • the mixing device 200 can process (detoxify) the gas and then exhaust the gas to the outside of the container 21. Therefore, for example, mixing. It is possible to prevent the environment in which the device 200 is arranged from being contaminated with the discarded gas.
  • the gas supply unit 23 and the exhaust unit 24 are hollow pipes, but any structure can be adopted as long as the structure allows communication between the inside of the container 21 and the outside of the container 21.
  • the gas supply unit 23 and the exhaust unit 24 for example, a plastic or metal tube or the like can be used.
  • the gas supply chamber 25 can store the gas supplied from the gas supply unit 23. Further, since the gas supply chamber 25 exists above the first stirring blade 12, the gas in the gas supply chamber 25 can be supplied to the first stirring blade 12 at the time of stirring. Therefore, by supplying the desired gas from the gas supply unit 23 to the gas supply chamber 25, the mixing device 200 of the second embodiment can mix the desired gas and the liquid L.
  • the gas discharge chamber 26 is a region in which the gas supplied from the gas supply chamber 25 and the liquid L can be mixed and then the gas not retained in the liquid L can be recovered. Further, since the gas discharge chamber 26 communicates with the exhaust unit 24, the recovered gas can be discharged to the outside of the container 21 via the exhaust unit 24. As a result, the mixing device 200 can maintain the pressure in the container 21 substantially constant.
  • the liquid L is introduced into the container 21 of the mixing device 200 (introduction step).
  • the volume of the liquid L is, for example, the volume at which the first stirring blade 12 is immersed in the liquid L.
  • a desired gas is supplied to the gas supply chamber 25 via the gas supply unit 23.
  • the gas may be supplied prior to the introduction step.
  • the first stirring blade 12 and the second stirring blade 13 are rotated to mix the desired gas and the liquid L (mixing step).
  • the motor 15 is driven to rotate the rotating shaft 14 around the shaft, thereby rotating the first stirring blade 12 and the second stirring blade 13.
  • the first stirring blade 12 mixes the liquid L and the gas and pushes the gas toward the bottom surface of the container 21.
  • the second stirring blade 13 circulates the liquid L and disperses the gas in the liquid L.
  • the mixing device 200 a downward flow is generated by the rotation of the first stirring blade 12, and the liquid L existing in the upper part of the first stirring blade 12 is sucked. Then, in the container 21, the liquid level at the upper part of the first stirring blade 12 drops, and the volume of the gas supply chamber 25 increases relatively. Therefore, the pressure (atmospheric pressure) in the gas supply chamber 25 is changed by the mixing device. It is relatively low compared to the pressure (atmospheric pressure) outside 200. Therefore, a desired gas is supplied to the gas supply chamber 25 via the gas supply unit 23. Further, when the desired gas in the gas supply chamber 25 is mixed with the liquid L by the first stirring blade 12, the pressure in the gas supply chamber 25 is increased according to the volume of the gas mixed in the liquid L. It will be relatively low. Therefore, for the same reason as the decrease in the liquid level, the desired gas is supplied from the gas supply unit 23 to the gas supply chamber 25 via the gas supply port 23a.
  • the mixing device 200 of the second embodiment can produce a mixed liquid of a desired gas and liquid L.
  • the mixing device 200 of the second embodiment there are two (two types) of the first stirring blade 11 and the second stirring blade 12 in order to supply the desired gas from the gas supply unit 23 to the gas supply chamber 25.
  • the mixing device 200 can be suitably used as, for example, a reaction device for a chemical reaction in which a liquid component and a gas component are reacted.
  • FIG. 4 is a schematic cross-sectional view showing the configuration of the mixing device 300 of the third embodiment
  • FIG. 4A is a schematic cross-sectional view showing the configuration of the mixing device 300 when not agitated (before degassing).
  • ) Is a schematic cross-sectional view showing the configuration of the mixing device 300 after degassing
  • (C) is a schematic cross-sectional view showing the configuration of the mixing device 300 at the time of stirring.
  • the mixing device 300 includes a degassing unit 34 in addition to the configuration of the mixing device 200 of the second embodiment.
  • the degassing unit 34 communicates the gas supply chamber 25 with the outside of the container 31 so as to be openable and closable.
  • the mixing device 300 includes a container 31 instead of the container 21, and the container 31 is composed of a container body 31a and a lid body 31b (canopy). Further, the mixing device 300 includes a separation wall 32 and a gas supply unit 33 in place of the separation wall 22 and the gas supply unit 23. Except for this point, the configuration of the mixing device 300 of the third embodiment is the same as the configuration of the mixing device 200 of the second embodiment, and the description thereof can be incorporated.
  • the degassing unit 34 can degas the gas in the gas supply chamber 25 to the outside of the container 31. It can be said that the degassing unit 34 inserts the lid 31b and the separation wall 32 so that the inside of the gas supply chamber 25 and the outside of the container 31 can communicate with each other.
  • the mixing device 300 for example, prepares the liquid L by degassing the gas in the gas supply chamber 25 and supplying a desired gas from the gas supply unit 33 prior to mixing the gas and the liquid L by the mixing device 300. The volume of gas other than the desired gas to be mixed can be reduced.
  • the degassing unit 34 may have a configuration in which the gas in the gas supply chamber 25 can be degassed to the outside of the container 31, for example, and the degassing unit 34 has a configuration in which the gas can flow into the gas supply chamber 25. May be good.
  • Examples of the degassing unit 31 include a combination of a hollow pipe and a plug that can be opened / closed, a valve that can be opened / closed, or a one-way valve.
  • the degassing unit 34 may include, for example, the gas processing unit, or may be connected to the gas processing unit.
  • the gas processing unit is, for example, as described above.
  • the mixing device 300 is partially filled, that is, filled with a part of the region surrounded by the separation wall 32 and the lid 31b. Therefore, in the mixing device 300, the gas supply chamber 25 is a region surrounded by the separation wall 32 and the liquid L, and can be a relatively narrow region as compared with the gas supply chamber 25 of the mixing device 200. Therefore, the mixing device 300 can reduce the volume of a gas other than the desired gas to be mixed with the liquid L. Further, the gas supply port 33a of the gas supply unit 33 is provided at the lower end of the filling portion of the separation wall 32 in accordance with the filling of the space in the separation wall 32.
  • the liquid L is introduced into the container 31 of the mixing device 300 (introduction step).
  • the volume of the liquid L is, for example, the volume at which the first stirring blade 12 is immersed in the liquid L.
  • a desired gas is supplied to the gas supply chamber 25 via the gas supply unit 33.
  • the degassing unit 34 is opened to degas the gas in the gas supply chamber 25 to the outside of the container 31.
  • the gas in the gas supply chamber 25 is replaced with a desired gas.
  • the degassing portion 34 is closed.
  • the lower surface of the filling portion of the separation wall 32 has substantially the same height as the upper surface of the liquid L, most of the gas in the gas supply chamber 25 is replaced with the liquid L.
  • the first stirring blade 12 and the second stirring blade 13 are rotated to mix the desired gas and the liquid L (mixing step).
  • the motor 15 is driven to rotate the rotating shaft 14 around the shaft, thereby rotating the first stirring blade 12 and the second stirring blade 13.
  • the first stirring blade 12 mixes the liquid L and the gas and pushes the gas toward the bottom surface of the container 31.
  • the second stirring blade 13 circulates the liquid L and disperses the gas in the liquid L.
  • the mixing device 200 of the second embodiment is used.
  • a desired gas is supplied from the gas supply unit 33 to the gas supply chamber 25 via the gas supply port 33a by the same mechanism as the production method used in the above.
  • the mixing device 300 of the third embodiment can produce a mixed liquid of a desired gas and liquid.
  • the degassing unit 31 degass a gas other than the desired gas from the gas supply chamber 25, and the gas supply unit 33 supplies the desired gas to the gas supply chamber 25.
  • the mixing device 300 can be suitably used as, for example, a reaction device for a chemical reaction in which a liquid component and a gas component are reacted.
  • FIGS. 5A and 5B are schematic cross-sectional views showing the configuration of the mixing device 400 of the fourth embodiment
  • FIG. 5A is a schematic cross-sectional view showing the configuration of the mixing device 400 when not agitated
  • FIG. 5B is a schematic cross-sectional view showing the configuration of the mixing device 400 when agitated.
  • It is a schematic cross-sectional view which shows the structure of the mixing apparatus 400 of.
  • the mixing device 400 includes a container 41 instead of the container 21, and the container 41 is composed of a container body 41a and a lid body 41b (canopy).
  • the mixing device 400 includes a separation wall 42 and a gas supply unit 43 in place of the separation wall 22 and the gas supply unit 23. Except for this point, the configuration of the mixing device 400 of the fourth embodiment is the same as the configuration of the mixing device 200 of the second embodiment, and the description thereof can be incorporated.
  • the mixing device 400 in the present embodiment, the entire area surrounded by the separation wall 42 and the lid 41b is filled, that is, filled. Therefore, in the mixing device 400, the gas supply chamber 25 does not exist when the mixture is not agitated.
  • a gas supply chamber 25 is formed between the bottom surface of the separation wall 43 and the first stirring blade 12 during stirring. In the mixing device 400, since the gas supply chamber 25 does not exist when the mixture is not agitated, the volume of the gas other than the desired gas mixed with the liquid L can be made substantially zero.
  • the gas supply port 43a of the gas supply unit 43 is provided at the lower end of the filling portion of the separation wall 42 in accordance with the filling of the space in the separation wall 42. That is, the gas supply port 43a of the gas supply unit 43 is located between the liquid level of the liquid L when not agitated and the first agitation blade 12.
  • the separation wall 42 can be said to be a gas intrusion prevention wall because it can prevent the intrusion of a gas other than the desired gas.
  • the liquid L is introduced into the container 41 of the mixing device 400 (introduction step).
  • the volume of the liquid L is, for example, the volume at which the first stirring blade 12 is immersed in the liquid L.
  • the first stirring blade 12 and the second stirring blade 13 are rotated to mix the desired gas and the liquid L (mixing step).
  • the motor 15 is driven to rotate the rotating shaft 14 around the shaft, thereby rotating the first stirring blade 12 and the second stirring blade 13.
  • the first stirring blade 12 mixes the liquid L and the gas and pushes the gas toward the bottom surface of the container 41.
  • the second stirring blade 13 circulates the liquid L and disperses the gas in the liquid L.
  • the gas supply chamber 25 is generated, so that the same as the manufacturing method using the mixing device 200 of the second embodiment.
  • a desired gas is supplied from the gas supply unit 43 to the gas supply chamber 25 via the gas supply port 43a.
  • the mixing device 400 of the fourth embodiment can produce a mixed liquid of a desired gas and liquid L.
  • the gas supply chamber 25 is formed by the rotation of the first stirring blade 12, and the desired gas is liquid L in a state where there is substantially no influence of a gas other than the desired gas. Can be supplied to. Therefore, according to the mixing device 400 of the fourth embodiment, a desired gas can be efficiently produced with a simple configuration of two (two types) stirring blades, a first stirring blade 11 and a second stirring blade 12. Can be mixed in liquid L. Therefore, the mixing device 400 can be particularly preferably used as a reaction device for a chemical reaction in which a liquid component and a gas component are reacted, for example.
  • FIGS. 6A and 6B are schematic cross-sectional views showing the configuration of the mixing device 500 of the fifth embodiment
  • FIG. 6A is a schematic cross-sectional view showing the configuration of the mixing device 500 when not agitated
  • FIG. 6B is a schematic cross-sectional view showing the configuration of the mixing device 500 when agitated.
  • It is a schematic cross-sectional view which shows the structure of the mixing apparatus 500 of.
  • the mixing device 500 includes a container 51 instead of the container 21.
  • the container 51 is composed of a container body 51a and a lid body 51b (canopy).
  • the mixing device 500 includes a gas supply unit 53 instead of the separation wall 22 and the gas supply unit 23. Except for these points, the configuration of the mixing device 500 of the fifth embodiment is the same as the configuration of the mixing device 200 of the second embodiment, and the description thereof can be incorporated.
  • the gas supply unit 53 is inserted into the lid 51b and connects (communicates) the outside of the container 51 with the inside of the container 51.
  • the gas supply unit 53 is inserted with the lid 51b, and the inner end portion (gas supply port 53a) of the container 51 is located between the liquid level of the liquid L when not agitated and the first stirring blade 55. It is arranged like this.
  • the gas supply port 53a is located above the first stirring blade 12 and near the interface between the gas and the liquid L during stirring. It is arranged like this.
  • the “near the interface between the gas and the liquid L” may be, for example, the interface between the gas and the liquid L, the position where the gas supply port 53a is slightly immersed in the liquid L, or the gas supply port 53a slightly immersed in the liquid L. It may be in a position where it is not immersed in. It can also be said that the gas supply unit 53 is arranged along the rotation shaft 14 inside the container 51, and the gas supply port 53a is arranged so as to be located near the upper portion of the first stirring blade 12. ..
  • the distance from the first stirring blade 12 to the gas supply port 53a may be, for example, a range in which the gas supply port 53a does not come into contact with the first stirring blade 12. Since the gas can be mixed with the liquid L more efficiently, the distance is preferably set to the shortest distance, for example, within a range in which the gas supply port 53a does not come into contact with the first stirring blade 12.
  • the liquid L is introduced into the container 51 of the mixing device 500 (introduction step).
  • the volume of the liquid L is, for example, the volume at which the first stirring blade 12 is immersed in the liquid L, as shown in FIG. 6 (A).
  • the gas supply port 53a may be immersed in the liquid L.
  • a desired gas is supplied into the container 51 via the gas supply unit 53, and the first stirring blade 12 and the second stirring blade 13 are rotated to mix the desired gas and the liquid L.
  • the motor 15 is driven to rotate the rotating shaft 14 around the shaft, thereby rotating the first stirring blade 12 and the second stirring blade 13.
  • the first stirring blade 12 mixes the liquid L and the gas and pushes the gas toward the bottom surface of the container 51.
  • the second stirring blade 13 circulates the liquid L and disperses the gas in the liquid L.
  • the rotation of the first stirring blade 12 causes a downward flow in the liquid L, and the liquid L existing in the upper part of the first stirring blade 12 is sucked. Then, the liquid level of the liquid L drops in the container 51.
  • the gas supply port 53a is located between the liquid level of the liquid L when not agitated and the first stirring blade 12, and is located near the liquid level of the liquid L when agitated. The gas is directly supplied to the vicinity of the liquid surface where the liquid L has decreased, and is mixed with the liquid L according to the attractive force of the liquid L due to the rotation of the first stirring blade 12. Therefore, in the mixing device 500, it can be said that the region near the liquid level of the lowered liquid L is the gas supply chamber 25.
  • the amount of gas supplied from the gas supply unit 53 may be adjusted to be smaller than the amount of gas taken into the liquid L by the rotation of the first stirring blade 12. As a result, the amount of the excess gas in the container 51 can be reduced, and the amount of the desired gas used can be suppressed during the production of the mixture of the desired gas and the liquid.
  • the mixing device 500 of the fifth embodiment includes a gas supply port 53a of the gas supply unit 53 at a position between the liquid level in the liquid L when not agitated and the first stirring blade 12. Further, in the mixing device 500, the gas supply port 53a is arranged so as to be located above the first stirring blade 12 at the time of stirring and near the interface between the gas and the liquid L at the time of stirring. Therefore, in the mixing step, the mixing device 500 can directly supply the desired gas to the vicinity of the liquid surface where the liquid L has decreased, and can efficiently mix the desired gas into the liquid L. Therefore, the mixing device 500 can be suitably used as, for example, a reaction device for a chemical reaction in which a liquid component and a gas component are reacted.
  • Appendix 1 A storage tank, a first stirring blade, and a second stirring blade are provided.
  • the storage tank The liquid can be stored, and the liquid and the gas can be mixed inside the liquid.
  • the first stirring blade is At the time of stirring, a downward flow can be generated in the liquid from the liquid surface of the liquid toward the bottom surface of the storage tank, and at the time of stirring, the gas existing above the liquid at the interface between the gas and the liquid.
  • the second stirring blade A gas-liquid mixer capable of generating a circulation of liquid in the storage tank.
  • (Appendix 2) Equipped with a gas supply unit The gas-liquid mixing device according to Appendix 1, wherein the gas supply unit can supply the gas from outside the storage tank into the storage tank.
  • (Appendix 3) Equipped with a gas supply chamber The gas supply chamber The gas supplied from the gas supply unit can be stored, and the internal gas can be supplied to the first stirring blade.
  • the canopy covers the upper part of the separation wall and The gas-liquid mixing device according to Appendix 3, wherein the gas supply chamber is a region surrounded by the separation wall and the canopy.
  • the gas supply chamber is provided with a degassing unit.
  • the gas-liquid mixing device according to Appendix 3 or 4 wherein the degassing unit can degas the gas in the gas supply chamber to the outside of the storage tank.
  • the gas-liquid mixing device according to Appendix 2 wherein the inner end of the storage tank of the gas supply unit is located between the liquid level of the liquid when not agitated and the first agitating blade.
  • (Appendix 9) Equipped with an exhaust section The gas-liquid mixing device according to any one of Supplementary note 1 to 8, wherein the exhaust unit can exhaust the gas from the inside of the storage tank to the outside of the storage tank.
  • (Appendix 10) The gas-liquid mixing device according to any one of Appendix 1 to 9, wherein the first stirring blade and the second stirring blade are coaxially arranged.
  • (Appendix 11) The gas-liquid mixing device according to any one of Appendix 1 to 10, wherein the first stirring blade includes a plurality of stirring blades.
  • (Appendix 12) The gas-liquid mixing device according to any one of Appendix 1 to 11, wherein the second stirring blade includes a plurality of stirring blades.
  • (Appendix 16) The production method according to Appendix 15, wherein the gas contains ozone.
  • a gas can be efficiently mixed with a liquid with a simple configuration. Therefore, it can be said that the present invention is extremely useful in the fields of medicine, cosmetics, foods, chemistry, etc., which utilize an apparatus for mixing a gas and a liquid, for example.

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PCT/JP2020/041200 2019-12-25 2020-11-04 気液混合装置および混合液の製造方法 WO2021131333A1 (ja)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5318496A (en) * 1976-08-05 1978-02-20 Mitsui Mining & Smelting Co Continuous decoloring and refining process and device of concentrated sulfuric acid
JPS5368466A (en) * 1976-11-30 1978-06-17 Shin Meiwa Ind Co Ltd Pump system for spreading bubbles in water
US4454077A (en) * 1982-07-08 1984-06-12 Union Carbide Corporation Process and apparatus for mixing a gas and a liquid
JPS62190073A (ja) * 1985-11-25 1987-08-20 オランダ国 培養液中の微生物の連続培養装置
US20020089073A1 (en) * 1999-11-30 2002-07-11 Dijk Gerard Van Apparatus for mixing and aerating liquid-solid slurries
JP2004504132A (ja) * 2000-07-21 2004-02-12 オウトクンプ　オサケイティオ　ユルキネン 密閉された反応容器におけるガス混合装置およびガス混合方法
JP2009526641A (ja) * 2006-02-17 2009-07-23 オウトテック オサケイティオ ユルキネン 密閉反応装置内のスラリーにガスを混合する方法および混合装置
JP2018177699A (ja) * 2017-04-14 2018-11-15 竹本油脂株式会社 アルキレンオキサイド付加物の製造方法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5318496A (en) * 1976-08-05 1978-02-20 Mitsui Mining & Smelting Co Continuous decoloring and refining process and device of concentrated sulfuric acid
JPS5368466A (en) * 1976-11-30 1978-06-17 Shin Meiwa Ind Co Ltd Pump system for spreading bubbles in water
US4454077A (en) * 1982-07-08 1984-06-12 Union Carbide Corporation Process and apparatus for mixing a gas and a liquid
JPS62190073A (ja) * 1985-11-25 1987-08-20 オランダ国 培養液中の微生物の連続培養装置
US20020089073A1 (en) * 1999-11-30 2002-07-11 Dijk Gerard Van Apparatus for mixing and aerating liquid-solid slurries
JP2004504132A (ja) * 2000-07-21 2004-02-12 オウトクンプ　オサケイティオ　ユルキネン 密閉された反応容器におけるガス混合装置およびガス混合方法
JP2009526641A (ja) * 2006-02-17 2009-07-23 オウトテック オサケイティオ ユルキネン 密閉反応装置内のスラリーにガスを混合する方法および混合装置
JP2018177699A (ja) * 2017-04-14 2018-11-15 竹本油脂株式会社 アルキレンオキサイド付加物の製造方法

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