JP5625216B2 - Distributed method and distributed system - Google Patents

Description

  The present invention includes an introduction chamber to which a fluid is supplied, a cylindrical stator that is arranged on the outer circumferential side of the introduction chamber and includes a plurality of throttle through holes arranged in the circumferential direction, and a discharge portion that is formed on the outer circumferential side of the stator. An annular blade chamber that communicates with a rotor blade that can be driven to rotate in the blade chamber is disposed in the main body casing, and by rotating the rotor blade, fluid is sucked from the introduction chamber into the blade chamber through the throttle hole, and the blade chamber is A sol in which a mixed fluid of a dispersoid and a liquid phase dispersion medium is passed through the suction pump mechanism and the dispersoid is dispersed in the liquid phase dispersion medium. The present invention relates to a distributed method and a distributed system for generating a message.

A slurry (an example of a sol) in which a solid phase dispersoid (an example of a dispersoid) is dispersed in a liquid phase dispersion medium is an electrode or separator such as a lithium ion secondary battery or an electric double layer capacitor, paint, toner, and polishing. It is often used for applications such as chemicals. On the other hand, an emulsion (an example of a sol) in which a liquid phase dispersoid (an example of a dispersoid) is dispersed in a liquid phase dispersion medium is used for foods, sheet materials, emulsion fuels, and the like.
In such a sol, if the dispersion of the dispersoid in the liquid phase dispersion medium is insufficient, the performance may be deteriorated, particularly when used as a secondary battery electrode, the cycle characteristics are deteriorated. Leads to.
Incidentally, examples of the liquid phase dispersion medium include solvents such as water, and examples of the dispersoid include solid phase dispersoids such as powder and liquid phase dispersoids such as oil.
The powder is not particularly excluded as long as it is a powder. Examples thereof include chemical raw materials such as battery electrode materials, food raw materials such as skim milk powder and wheat flour, pharmaceutical raw materials, etc. Examples thereof include powders such as bodies and fine particles (including a mixture of these powders). The powder includes a granular material.

  Conventionally, as a dispersion system for generating a sol (dispersion liquid) in which a dispersoid is dispersed in a liquid phase dispersion medium, an introduction chamber to which a fluid is supplied, and a plurality of throttling through holes arranged around the outer periphery of the introduction chamber. A cylindrical stator arranged in a direction, an annular blade chamber communicating with a discharge portion formed on the outer peripheral side of the stator, and a rotary blade that can be driven to rotate in the blade chamber are arranged in the main body casing, and the rotary blade Is known to have a centrifugal suction pump mechanism that sucks fluid from the introduction chamber into the blade chamber through the throttle hole and discharges the fluid from the blade chamber to the discharge portion (for example, patents) References 1-3).

In this type of dispersion system, a mixed fluid of a liquid phase dispersion medium and a dispersoid is supplied to an introduction chamber, and a rotating blade is driven to rotate. On the other hand, the shear force and impact force of the rotor blade are applied, and the dispersoid aggregates (so-called lumps) contained in the mixed fluid are appropriately crushed, so that the dispersoid is appropriately dispersed in the liquid phase dispersion medium. It is supposed to be possible.
Also, in this type of dispersion system, a sudden pressure drop occurs at the back of the rotor blades that are driven to rotate at high speed in the blade chamber, so that the mixed fluid that exists near the back of the rotor blades passes through the throttle hole. By causing local boiling (cavitation), the expansion of bubbles contained in the mixed fluid and the impact caused thereby, the aggregates (dama) of the dispersoids are crushed well, and the dispersoids in the liquid dispersion medium are disintegrated. It is said that dispersion can be promoted.

JP 2007-216172 A JP 2006-281017 A International Publication No. 2010/140516

In the above-described conventional dispersion system and dispersion method, a part of the mixed fluid, that is, the back surface portion of the rotor blade passes through the throttle hole due to a rapid pressure drop at the back surface portion of the rotor blade that is driven to rotate in the blade chamber. In the mixed fluid existing in the vicinity, local boiling (cavitation) occurs. On the other hand, some mixed fluid immediately after passing through the throttle through-hole does not generate boiling and is directly discharged to the discharge portion. Therefore, it has been difficult to sufficiently promote the dispersion of the dispersoid in the liquid phase dispersion medium.
Here, for example, by greatly reducing the size of the throttle through hole of the stator, the pressure of the mixed fluid that has passed through the throttle through hole is greatly reduced, thereby dispersing the dispersoid in the liquid phase dispersion medium. Although it is conceivable to promote, there is a possibility that the powder as the dispersoid in the mixed fluid may clog the throttling pores and cause poor flow, and conversely, the dispersion of the dispersoid may deteriorate.

In particular, the higher the ratio of the dispersoid (particularly powder) to the liquid phase dispersion medium, the lower the fluidity, and the easier it is to generate dispersoid aggregates (so-called lumps). Since it tends to be large, the dispersion of the dispersoid in the liquid phase dispersion medium may not be sufficiently performed, and an improvement has been desired.
That is, as an application of a sol (dispersion liquid) in which a dispersoid is dispersed in a liquid phase dispersion medium, for example, there is an application in which a film or a member having a dispersoid as a main component is formed on an object. In this application, for example, a liquid phase dispersion medium is evaporated by performing a process such as heating after applying the dispersion liquid to the object, thereby forming a film or member mainly composed of the dispersoid. In such an application, it is desired to reduce the ratio of the liquid phase dispersion medium in the preliminary mixture to improve the processing efficiency. However, if the ratio of the liquid phase dispersion medium in the premix is lowered in order to increase the efficiency of the process, the fluidity of the premix becomes low as described above. The problem of the product became particularly remarkable, and the dispersoid could not be sufficiently dispersed in the liquid phase dispersion medium.

  The present invention has been made in view of such circumstances, and the object thereof is to promote the dispersion of the dispersoid in the liquid dispersion medium satisfactorily over the entire mixed fluid that has passed through the throttle through hole of the stator. The object is to establish a dispersion method and a dispersion system capable of producing a high-quality sol.

In order to achieve the above object, the dispersion method according to the present invention comprises:
An introduction chamber to which a fluid is supplied, a cylindrical stator that is arranged on the outer peripheral side of the introduction chamber and includes a plurality of throttle through holes arranged in the circumferential direction, and an annular shape that leads to a discharge portion formed on the outer peripheral side of the stator The blade chamber and a rotor blade that can be rotationally driven in the blade chamber are disposed in the main body casing, and fluid is sucked from the introduction chamber to the blade chamber through the throttle through-hole by the rotational drive of the rotor blade. Using a centrifugal suction pump mechanism that discharges fluid from the blade chamber to the discharge unit, and passing a mixed fluid of a dispersoid and a liquid phase dispersion medium through the suction pump mechanism unit, A dispersion method for producing a sol in which the dispersoid is dispersed, the characteristic configuration of which is
A throttle is provided at the inlet of the introduction chamber,
The inner diameter of the throttle portion is smaller than the circulation path for supplying fluid to the introduction chamber,
The supply chamber is formed by being partitioned by a partition plate with respect to the introduction chamber, and is provided with a supply chamber that communicates with the blade chamber through the throttle through hole of the stator.
While supplying a premixture prepared by premixing the dispersoid and the liquid phase dispersion medium to the supply chamber and circulatingly supplying a part of the sol discharged from the discharge section to the introduction chamber as the mixed fluid,
The rotation speed of the rotor blade is set so that the pressure in the outlet region of the throttle through hole of the stator is equal to or lower than the saturated vapor pressure of the liquid phase dispersion medium over the entire circumference of the outlet region, and the supply mechanism unit Rotating the rotary blade at the set rotational speed while operating the recirculation mechanism, and at least a region immediately after passing through the throttle aperture of the stator in the blade chamber, This is in the point of forming as a fine bubble region where a large number of fine bubbles are generated.

In order to achieve the above object, a distributed system according to the present invention includes:
An introduction chamber to which a fluid is supplied, a cylindrical stator that is arranged on the outer peripheral side of the introduction chamber and includes a plurality of throttle through holes arranged in the circumferential direction, and an annular shape that leads to a discharge portion formed on the outer peripheral side of the stator The blade chamber and a rotor blade that can be rotationally driven in the blade chamber are disposed in the main body casing, and fluid is sucked from the introduction chamber to the blade chamber through the throttle through-hole by the rotational drive of the rotor blade. A centrifugal suction pump mechanism that discharges fluid from the blade chamber to the discharge unit, and a fluid mixture of a dispersoid and a liquid phase dispersion medium is passed through the suction pump mechanism unit, and the liquid phase dispersion medium A dispersion system for generating a sol in which the dispersoid is dispersed.
Provided with a throttle at the inlet of the introduction chamber,
The inner diameter of the throttle portion is smaller than the circulation path for supplying fluid to the introduction chamber,
A supply chamber that is formed by being partitioned by a partition plate with respect to the introduction chamber, and that communicates with the blade chamber through an aperture hole of the stator;
A supply mechanism for supplying a premixed mixture of the dispersoid and the liquid phase dispersion medium to the supply chamber, and a part of the sol discharged from the discharge section is circulated and supplied to the introduction chamber as the mixed fluid. And a recirculation mechanism that
The controller for controlling the operation adjusts the rotational speed of the rotor blades so that the pressure in the outlet region of the throttle through hole of the stator is equal to or lower than the saturated vapor pressure of the liquid phase dispersion medium over the entire circumference of the outlet region. An area immediately after passing through at least the stator aperture in the stator chamber by rotating the rotor blade at the set rotational speed while operating the supply mechanism section and the recirculation mechanism section. However, the liquid phase dispersion medium is formed as a fine bubble region where a large number of fine bubbles are generated.

According to the above characteristic configuration, the throttle portion is provided at the inlet portion of the introduction chamber, and the stator through hole is provided on the downstream side (outer peripheral side) of the introduction chamber. The sucked mixed fluid sequentially passes through the throttle part, the introduction chamber, and the throttle through hole, and the pressure in the introduction chamber becomes lower than the pressure on the primary side of the introduction chamber (upstream side of the inlet), which can be almost atmospheric pressure. In addition, the pressure in the outlet region of the throttle through hole of the stator becomes lower than the pressure in the introduction chamber.
In particular, depending on the setting of the rotational speed of the rotor blade, the pressure in the outlet region of the stator throttling hole is the saturated vapor pressure of the liquid phase dispersion medium over the entire circumference of the outlet region (3,169 kPa for water at 25 ° C.). Therefore, at least in the region immediately after passing through the throttle hole in the blade chamber, the generation of fine bubbles (microbubbles) due to the vaporization of the liquid phase dispersion medium is promoted, and the region covers the entire circumference of the blade chamber. Thus, it can be formed as a fine bubble region where a large number of the fine bubbles are continuously generated.
Therefore, the liquid phase dispersion medium that has permeated the dispersoid aggregates (so-called lumps) foams around the entire circumference of the blade chamber, thereby promoting the crushing of the aggregates. Dispersion of the dispersoid is further promoted by the impact force when it is pressurized and extinguished in the chamber, and as a result, the dispersoid in the liquid phase dispersion medium over almost the entire mixed fluid existing in the blade chamber. It is possible to produce a high-quality sol (dispersion liquid) with good dispersion.

This point will be described with reference to FIG. 8 , for example. Figure 8 constitutes a main casing with a transparent resin, by passing the water as a fluid to a suction pump mechanism portion, showing a state in which rotary blade was observed wings chamber rotates from the outer circumferential side shown in FIG. 8 (a) From (1) to (c), the rotational speed of the rotor blade is increased. As can be seen from FIG. 8 (a), when the rotational speed of the rotor blade is relatively low, the pressure in the outlet region of the throttle hole is the saturated vapor pressure of water (3.169 kPa for water at 25 ° C.). In the fluid immediately after passing through the throttle through hole, a part of the fluid, that is, the back of the rotor blade passes through the throttle through hole due to a sudden pressure drop at the back surface of the rotor blade. Only local fluid (cavitation) occurs in the circumferential direction intermittently only in the fluid existing in the vicinity of the head, and the fluid that has passed through the throttle hole is discharged to the discharge section as it is without boiling. Something exists. That is, this condition appears white region present blade chamber is very small state in FIG. 8 (a).
On the other hand, as can be seen in FIG. 8B , in the state where the rotational speed of the rotor blade is relatively high, the pressure in the outlet region of the throttle through-hole is the saturated vapor pressure of water (25 ° C. In the case of water, it is 3.169 kPa) or less, and at least in the region immediately after passing through the throttle hole in the blade chamber, due to a sudden pressure drop at the back surface of the rotor blade, the back surface portion of the rotor blade in the blade chamber In addition to local boiling (cavitation) of the fluid existing in the vicinity, the generation of microbubbles (microbubbles, which are the microbubbles referred to in the present application) due to the vaporization of the fluid is promoted, and this region is continuous over the entire circumference of the blade chamber In this state, a fine bubble region in which many fine bubbles are generated is formed. That is, this state is a state in which a large number of white-like regions existing in the blade chamber in FIG. 8B are generated in a cloud shape. Moreover, as found in FIG. 8 (c), the at higher state rotational speed of the rotor blades, fine bubbles due to vaporization of the liquid dispersion medium in the fluid over the entire circumference of the blade chamber (microbubbles) is, More fine bubbles are generated, and a fine bubble region in which many fine bubbles are generated is formed more clearly. That is, this condition appears white region existing blade chamber in FIG. 8 (c) it is very much (more than FIG. 8 (b)) to the cloud is a state that is occurring.

As described above, normally, in the suction pump mechanism, the dispersoid is dispersed in the liquid phase dispersion medium only by local boiling (cavitation) generated only at the back surface of the rotor blade in the blade chamber in the exit region of the throttle hole. Although sufficient (state of FIG. 8 (a)), the present inventors, for example, have a relatively large ratio of the dispersoid to the liquid phase dispersion medium, and it is necessary to further improve the dispersion performance. In view of the above, as described above, by setting the rotation speed of the rotor blade, the pressure in the outlet region of the stator throttling hole is set to be equal to or lower than the saturated vapor pressure of the liquid phase dispersion medium over the entire periphery of the outlet region. , It is possible to generate boiling of the liquid phase dispersion medium in a wider range (states (b) and (c) of FIG. 8 ), and over almost the entire mixed fluid existing in the entire circumference of the blade chamber, High quality with good dispersoid dispersion in liquid phase dispersion medium The present invention was completed by finding that it is possible to produce a sol (dispersion).

  In addition, according to the above-described characteristic configuration, the premixture obtained by premixing the dispersoid and the liquid phase dispersion medium is supplied from the supply chamber to the blade chamber side by the supply mechanism unit, and is sheared when passing through the throttle through hole. And mixed and sucked into the blade chamber. On the other hand, a part of the sol discharged from the discharge unit is circulated and supplied to the introduction chamber by the recirculation mechanism unit, and is mixed by being subjected to a shearing action when passing through the throttle hole, and is sucked into the blade chamber.
  The preliminary mixture that flows from the supply chamber through the throttle hole into the blade chamber and the mixed fluid (including part of the sol) that flows from the introduction chamber through the throttle hole into the blade chamber are the blade It is mixed by a rotating blade that circulates around the chamber and discharged from the discharge section. Accordingly, it is possible to more reliably disperse the dispersoid in the liquid phase dispersion medium while suppressing generation of more dispersoid aggregates (dama) as much as possible.

  A further characteristic configuration of the dispersion method according to the present invention is that the dispersoid is a powder, and a sol in which the powder is dissolved in the liquid phase dispersion medium is generated.

  A further characteristic configuration of the dispersion system according to the present invention is that the dispersoid is a powder, and a sol in which the powder is dissolved in the liquid phase dispersion medium is generated.

  A further characteristic configuration of the dispersion system according to the present invention is that the recirculation mechanism section includes a separation section that separates bubbles from the sol that is circulated and supplied to the introduction chamber.

  According to the above characteristic configuration, since bubbles (bubbles of the liquid phase dispersion medium) are separated from the sol discharged from the discharge unit and circulated and supplied to the introduction chamber, the dispersoid aggregates due to the presence of the bubbles in the introduction chamber. It is possible to prevent the permeation of the liquid phase dispersion medium into the object from being suppressed, and to prevent the pressure reduction by the throttle part from being suppressed. Furthermore, the presence of the bubbles can prevent the pumping effect in the suction pump mechanism generated by the rotation of the rotor blades from being lowered. In addition, as described above, fine bubbles (microbubbles) of the liquid phase dispersion medium are generated over the entire circumference of the blade chamber, but the fine bubbles are separated by the separation unit, and the fine bubbles form the discharge unit. It is possible to effectively suppress the circulating supply to the introduction chamber.

A further characteristic configuration of the distributed system according to the present invention is such that the partition plate is connected to a rotor provided with the rotor blades and can be rotated.
The partition plate is provided with a scraping blade for scraping the preliminary mixture at the inlet of the supply chamber toward the supply chamber.

According to the above characteristic configuration, the scraping blade provided on the partition plate rotates as the rotor provided with the rotary blade rotates, so that the preliminary mixture that is supplied from the upstream side of the supply chamber and exists in the inlet portion Can be satisfactorily scraped to the supply chamber side. In particular, the preliminary mixture to be scraped is mixed under the shearing action of the scraping blade, and the dispersoid is more dispersed in the liquid phase dispersion medium due to local boiling (cavitation) generated on the back surface of the scraping blade. It will be done well.

Schematic configuration diagram of a dispersion system equipped with a centrifugal suction pump mechanism Longitudinal sectional view showing the main part of the fixed-quantity supply device Sectional view in III-III direction view of FIG. Longitudinal side view of centrifugal suction pump mechanism Sectional view in the VV direction view of FIG. The exploded perspective view which shows the assembly structure of the front wall part of a main body casing, a stator, a partition plate, and a rotor Schematic diagram of partition plate Schematic side view of the blade chamber in which the rotor blades rotate, observed from the outer peripheral side of the main casing

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a dispersion system 100 having a centrifugal suction pump mechanism Y according to the present invention.
This dispersion system 100 uses a powder P as a dispersoid, a solvent R as a liquid phase dispersion medium, and dissolves the powder P in the solvent R to generate a slurry F as a sol.
In the present embodiment, for example, CMC (carboxyl methylcellulose) is used as the powder P (solid phase dispersoid), and water is used as the solvent R (liquid phase dispersion medium).

  As shown in FIG. 1, the dispersion system 100 includes a quantitative supply device X that supplies powder P in a fixed amount, a solvent supply unit 50 that supplies solvent R in a fixed amount, and a powder P that is supplied in a fixed amount from the quantitative supply device X. A suction pump mechanism Y that sucks and mixes the solvent R that is quantitatively supplied from the solvent supply unit 50 by negative pressure, and a powder P that is not completely dissolved from the slurry F discharged from the suction pump mechanism Y. And a recirculation mechanism 70 that circulates and supplies the solvent R (hereinafter, undissolved slurry Fr) to the suction pump mechanism Y.

[Quantitative supply device]
As shown in FIG. 1, the quantitative supply device X includes a hopper 31 that discharges the powder P received from the upper opening 31a from the lower opening 31b, an agitation mechanism 32 that agitates the powder P in the hopper 31, With the upper opening 31a of the hopper 31 open to the atmosphere, the lower opening is caused by the negative pressure suction force acting on the lower opening 31b by the suction of the suction pump mechanism Y connected to the downstream side of the lower opening 31b. A positive displacement quantitative supply unit 40 that supplies the powder P discharged from 31b to the suction pump mechanism Y is provided.

  The hopper 31 is formed in an inverted conical shape that is reduced in diameter as it goes from the upper part to the lower part, and its central axis A1 is arranged in a posture along the vertical direction. The cross-sectional shape of each of the upper opening 31a and the lower opening 31b of the hopper 31 is a circular shape centered on the central axis A1 when viewed in the vertical direction in FIG. The inclination angle of the wall surface is approximately 60 degrees with respect to the horizontal plane.

  The stirring mechanism 32 is disposed in the hopper 31 and has a stirring blade 32A that stirs the powder P in the hopper 31, a blade driving motor M1 that rotates the stirring blade 32A around the central axis A1 of the hopper 31, An attachment member 32B that supports the blade drive motor M1 positioned above the upper opening 31a of the hopper 31 and a transmission member 32C that transmits the rotational driving force of the blade drive motor M1 to the stirring blade 32A are configured. .

  The stirring blade 32A is configured by bending a rod-like member into a substantially V-shape, with one side portion thereof being along the inner wall surface of the hopper 31, and the other side portion being at the center axis A1 of the hopper 31. It is coaxially and rotatably supported. Further, the stirring blade 32A has a triangular cross-sectional shape, and is disposed so that a surface forming one side of the triangle is substantially parallel to the inner wall surface of the hopper 31. Accordingly, the stirring blade 32A is disposed so as to be rotatable around the central axis A1 along the inner wall surface of the hopper 31.

As shown in FIGS. 1 to 3, the positive displacement quantitative supply unit 40 is a mechanism for supplying a predetermined amount of powder P supplied from the lower opening 31 b of the hopper 31 to the suction pump mechanism Y on the downstream side. It is.
Specifically, the introduction part 41 connected to the lower opening part 31 b of the hopper 31, the casing 43 provided with the supply port 43 a and the discharge port 43 b, and the measuring rotator 44 rotatably disposed in the casing 43. And a metering rotator drive motor M2 that rotationally drives the metering rotator 44.

  The introduction part 41 is formed in a cylindrical shape that communicates the lower opening 31b of the hopper 31 and the supply port 43a formed in the upper part of the casing 43, and has a slit having the same shape as the supply port 43a of the casing 43 at the lowermost end. A shaped opening is formed. The introduction portion 41 is formed in a tapered shape that becomes thinner toward the supply port 43 a side of the casing 43. The shape of the slit-shaped opening can be appropriately set according to the size of the hopper 31, the supply amount of the powder P, the characteristics of the powder P, and the like. The dimension is set to about 20 to 100 mm, and the dimension in the width direction is set to about 1 to 5 mm.

The casing 43 is formed in a substantially rectangular parallelepiped shape, and is connected to the hopper 31 via the introduction portion 41 in a posture inclined by 45 degrees with respect to the horizontal direction (left-right direction in FIG. 1).
As shown in FIGS. 2 and 3, the upper surface of the casing 43 is provided with a slit-shaped supply port 43 a corresponding to the slit-shaped opening of the introduction portion 41, and the powder P from the lower opening 31 b of the hopper 31 is provided. Can be supplied into the casing 43. At the lower part of the lower side surface (right side surface in FIG. 2) of the casing 43 arranged in an inclined manner, the powder P, which is quantitatively supplied by the metering rotator 44, is supplied to the downstream suction pump via the expansion chamber 47. A discharge port 43b for discharging to the mechanism part Y is provided, and a powder discharge pipe 45 is connected to the discharge port 43b. The expansion chamber 47 is provided at a position in the casing 43 to which the powder P supplied from the supply port 43a to the powder storage chamber 44b of the measuring rotator 44 is supplied in a fixed amount, and is operated by the negative pressure acting from the discharge port 43b. The force is maintained at a lower pressure than the supply port 43a (for example, about −0, 06 MPa). That is, the discharge port 43b is connected to the primary side of the suction pump mechanism Y so that the negative pressure suction force acts on the expansion chamber 47 and is maintained at a lower pressure than the supply port 43b. As the measurement rotating body 44 rotates, the state of each powder storage chamber 44b is changed to a negative pressure state (for example, about −0, 06 MPa) and a higher pressure state than the negative pressure state. .

  The measuring rotator 44 has a disk member 49 disposed on the drive shaft 48 of the measuring rotator driving motor M <b> 2, and a plurality of (e.g., eight) plate-shaped partition walls 44 a radially excluding the central portion of the disk member 49. A plurality of powder storage chambers 44b (for example, eight chambers) are formed at equal intervals in the circumferential direction. The powder storage chamber 44 b is configured to open at the outer peripheral surface and the center portion of the measuring rotary body 44. An opening closing member 42 is unevenly distributed in the central direction of the measuring rotating body 44 and is fixedly arranged. The opening on the center side of each powder storage chamber 44b is closed or opened according to the rotation phase. It is configured to be possible. The supply amount of the powder P can be adjusted by changing the number of rotations of the measuring rotator 44 by the measuring rotator driving motor M2 that rotationally drives the measuring rotator 44.

  With the rotation of the measuring rotator 44, each powder storage chamber 44b is opened to the expansion chamber 47, opened to the expansion chamber 47, the first sealed state not communicating with the expansion chamber 47 and the supply port 43a, and opened to the supply port 43a. The supply port is opened and the supply port 43a and the expansion chamber 47 are communicated with each other in the order of the second sealed state. The casing 43 is formed such that the opening on the outer peripheral surface side of the measuring rotator 44 is closed in the first sealed state and the second sealed state, and the opening on the center side of the measuring rotator 44 is the first sealed. The opening closing member 42 is fixedly disposed on the casing 43 so as to be closed in the state, the supply port open state, and the second sealed state.

  Therefore, in the quantitative supply device X, the powder P stored in the hopper 31 is supplied to the quantitative supply unit 40 while being stirred by the stirring blade 32A, and the powder P is discharged from the discharge port 43b by the quantitative supply unit 40. A fixed amount is supplied to the suction pump mechanism Y through the body discharge pipe 45.

  More specifically, the pressure of the expansion chamber 47 in the casing 43 is in a negative pressure state (for example, for example, due to the negative pressure suction force from the suction pump mechanism Y connected to the downstream side of the discharge port 43b of the constant supply unit 40) −0, about 06 MPa). On the other hand, since the upper opening 31a of the hopper 31 is open to the atmosphere, the inside of the hopper 31 is in a state of about atmospheric pressure. The inside of the introduction part 41 and the vicinity of the lower opening 31b communicating with each other through the gap between the expansion chamber 47 and the metering rotator 44 are in a pressure state between the negative pressure state and the atmospheric pressure state.

  In this state, the powder P in the vicinity of the inner wall surface of the hopper 31 and the lower opening 31b is stirred by the stirring blade 32A of the stirring mechanism 32, whereby the powder P in the hopper 31 is sheared by the stirring blade 32A. On the other hand, the metering rotator 44 is rotated by the metering rotator drive motor M2, so that the empty powder storage chambers 44b are in continuous communication with the supply port 43a. Then, the powder P in the hopper 31 flows down through the introduction portion 41 from the lower opening 31b and is stored in a predetermined amount in the powder storage chamber 44b of the measuring rotary body 44 that is in communication with the supply port 43a one after another. The powder P stored in the powder storage chamber 44b flows down to the expansion chamber 47 and is discharged from the discharge port 43b. Therefore, the fixed amount supply device X can continuously supply the powder P to the supply port 11 of the suction pump mechanism Y continuously by a predetermined amount through the powder discharge pipe 45.

  As shown in FIG. 1, the powder discharge pipe 45 is provided with a shutter valve 46 that can stop the supply of the powder P to the supply port 11 of the suction pump mechanism Y.

(Solvent supply unit)
As shown in FIG. 1, the solvent supply unit 50 is configured to continuously supply the solvent R from the solvent source 51 to the supply port 11 of the suction pump mechanism unit Y at a set flow rate.
Specifically, the solvent supply unit 50 includes a solvent source 51 that sends the solvent R, a solvent supply pipe 52 that sends the solvent R from the solvent source 51, and a solvent that is sent from the solvent source 51 to the solvent supply pipe 52. A flow rate adjustment valve (not shown) that adjusts the flow rate of R to a set flow rate, and the solvent R adjusted to the set flow rate are mixed with powder P that is quantitatively supplied from the quantitative supply unit 40 and supplied to the supply port 11. And a mixing mechanism 60.

As shown in FIG. 4, the mixing mechanism 60 includes a mixing member 61 that connects the powder discharge pipe 45 and the solvent supply pipe 52 to the supply port 11.
The mixing member 61 is configured to have a smaller diameter than the cylindrical supply port 11, and a cylindrical portion 62 disposed in an inserted state in the supply port 11 so as to form an annular slit 63 between the mixing member 61 and the supply port 11. And the annular flow path forming part 65 which forms the annular flow path 64 in the outer peripheral part of the supply port 11 in a state communicating with the annular slit 63 over the entire circumference is provided.
The powder discharge pipe 45 is connected to the mixing member 61 in a state of communicating with the cylindrical portion 62, and the solvent supply pipe 52 is connected to supply the solvent R to the annular flow path 64 in the tangential direction. The
The powder discharge pipe 45, the cylindrical portion 62 of the mixing member 61, and the supply port 11 are inclined such that the supply direction of the axis A2 is downward (the angle with respect to the horizontal plane (left and right direction in FIG. 1) is about 45 degrees). It is arranged so as to be inclined.

That is, the powder P discharged from the discharge port 43b of the fixed amount supply unit 40 to the powder discharge tube 45 is introduced into the supply port 11 along the axis A2 through the cylindrical portion 62 of the mixing member 61. On the other hand, since the solvent R is supplied to the annular flow path 64 from the tangential direction, the solvent R is in a state of a hollow cylindrical vortex without a break through the annular slit 63 formed on the inner peripheral side of the annular flow path 64. It is supplied to the supply port 11.
Accordingly, the powder P and the solvent R are uniformly premixed by the cylindrical supply port 11 and the premixed mixture Fp is sucked into the supply chamber 13 of the suction pump mechanism Y.

[Suction pump mechanism]
The suction pump mechanism Y will be described based on FIGS. 1 and 4 to 7 .
As shown in FIG. 4, the suction pump mechanism Y includes a main casing 1 having a cylindrical outer peripheral wall 4 whose both ends are closed by a front wall 2 and a rear wall 3. 1 is a concentric rotor 5 that is concentrically provided within the main body casing 1, a cylindrical stator 7 that is concentrically fixed to the front wall 2 inside the main body casing 1, and the rotor 5. And a pump drive motor M3 and the like.

As shown also in FIG. 5, on the radially outer side of the rotor 5, a plurality of rotary blades 6 protrude to the front side (left side in FIG. 4) that is the front wall portion 2 side and are equally spaced in the circumferential direction. Are provided integrally with the rotor 5.
The cylindrical stator 7 is provided with a plurality of through holes 7a and 7b arranged in the circumferential direction, and the stator 7 is on the front side of the rotor 5 (left side in FIG. 4) and on the inner side in the radial direction of the rotor blades 6. An annular blade chamber 8 around which the rotor blade 6 circulates is formed between the stator 7 and the outer peripheral wall portion 4 of the main body casing 1.

As shown in FIGS. 4 to 6 , the supply port 11 for sucking and introducing the premixed mixture Fp, in which the powder P and the solvent R are premixed by the mixing mechanism 60, into the inside of the main casing 1 by the rotation of the rotor blades 6. The center wall of the front wall 2 (the axis A3 of the main body casing 1) is shifted to the outer peripheral side.
As shown in FIGS. 4 and 6 , an annular groove 10 is formed on the inner surface of the front wall portion 2 of the casing 1, and a supply port 11 is provided in communication with the annular groove 10.
As shown in FIGS. 4 and 5, the cylindrical discharge portion 12 that discharges the slurry F generated by mixing the powder P and the solvent R is a peripheral portion of the cylindrical outer peripheral wall portion 4 of the main body casing 1. It is provided at one location in the direction so as to extend in the tangential direction of the outer peripheral wall 4 and communicate with the blade chamber 8.

As shown in FIGS. 1 and 4, in this embodiment, the slurry F discharged from the discharge unit 12 is supplied to the recirculation mechanism unit 70 through the discharge path 18 and is supplied to the separation unit 71 of the recirculation mechanism unit 70. undissolved slurry Fr, central portion of the front wall 2 of the circulation path 16 to circulate and supply inlet 17 in the body casing 1 through the main body casing 1 which bubbles have been separated Te (axis a 3 concentrically) Is provided.
4 to 6 , a partition plate 15 that divides the inner peripheral side of the stator 7 into a supply chamber 13 on the front wall 2 side and an introduction chamber 14 on the rotor 5 side is provided on the front side of the rotor 5. And a scraping blade 9 on the front wall 2 side of the partition plate 15. A plurality of scraping blades 9 are concentrically provided at equal intervals in the circumferential direction (four in FIG. 6), and each of the scraping blades 9 enters the annular groove 10 in the state where each of the scraping blades 9 enters the annular groove 10. And are arranged so as to be able to circulate integrally.

The supply chamber 13 and the introduction chamber 14 are configured to communicate with the blade chamber 8 through a plurality of through holes 7 a and 7 b of the stator 7, the supply port 11 communicates with the supply chamber 13, and the introduction port 17 is introduced. It is configured to communicate with the chamber 14.
Specifically, the supply chamber 13 and the blade chamber 8 are communicated with each other through a plurality of supply chamber side through-holes 7a arranged at equal intervals in the circumferential direction at a portion facing the supply chamber 13 in the stator 7, and the introduction chamber. 14 and the blade chamber 8 are communicated with each other through a plurality of introduction chamber side through-holes 7b disposed at equal intervals in the circumferential direction at a portion facing the introduction chamber 14 in the stator 7.

A description will be given of each part of the suction pump mechanism Y.
As shown in FIG. 4, the rotor 5 is configured to have a shape in which the front surface bulges substantially in a truncated cone shape, and is arranged on the outer peripheral side at equal intervals with a plurality of rotating blades 6 protruding forward. Is provided. In FIG. 5, ten rotating blades 6 are arranged at equal intervals in the circumferential direction. Further, the rotor blade 6 is formed to project from the outer periphery side of the rotor 5 to the inner periphery side so as to incline backward in the rotation direction from the inner periphery side toward the outer periphery side. The inner diameter is slightly larger than the outer diameter of the stator 7.
The rotor 5 is connected to a drive shaft 19 of a pump drive motor M3 that passes through the rear wall portion 3 and is inserted into the main body casing 1 in a state of being concentric with the main body casing 1 in the main body casing 1. The pump drive motor M3 is rotationally driven.
The rotor 5 is rotationally driven in a direction in which the tip end portion of the rotor blade 6 becomes the front side when viewed in the axial direction (viewed in the direction VV in FIG. 4 as shown in FIG. 5). A so-called local boiling (cavitation) is generated on the rear surface (back surface) 6a in the rotational direction.

As shown in FIGS. 4, 6, and 7 , the partition plate 15 is configured in a generally funnel shape having an outer diameter that is slightly smaller than the inner diameter of the stator 7. Specifically, the funnel-shaped partition plate 15 includes a funnel-shaped portion 15b opened at a central sliding portion of a cylindrical sliding contact portion 15a protruding in a cylindrical shape, and the funnel-shaped portion 15b. The outer peripheral portion of the main body casing 1 is configured to have an annular flat plate portion 15c that is in a state orthogonal to the axis A3 of the main body casing 1.
As shown in FIGS. 4 and 5, the partition plate 15 has a plurality of cylindrical plates 15 which are spaced at equal intervals in the circumferential direction with the top cylindrical sliding contact portion 15 a facing the front wall 2 side of the main casing 1. It is attached to the attachment portion 5a on the front surface of the rotor 5 via the spacing members 20 arranged at the places (four places in this embodiment).

As shown in FIG. 5 and FIG. 7 (c), the in mounting the rotor 5 via a spacing member 20 the partition plate 15 at each of the plurality locations husband stirring blade 21, the wall portion 3 side after the main casing 1 When the rotor 5 is rotationally driven, the four stirring blades 21 are configured to rotate integrally with the rotor 5.

As shown in FIGS. 4 and 6 , in this embodiment, the cylindrical introduction port 17 is concentric with the main body casing 1 and is provided at the center of the front wall portion 2 of the main body casing 1. The introduction port 17 is formed with a narrowed portion 14a that is smaller in diameter than the inner diameter of the circulation path 16 and smaller in diameter than the cylindrical sliding contact portion 15a of the partition plate 15 and has a small flow path area. By rotating the rotor blade 6 of the rotor 5, the slurry F is discharged through the discharge unit 12, and the undissolved slurry Fr is introduced through the throttle unit 14 a of the introduction port 17. The portion Y is depressurized.

As shown in FIGS. 4 to 6 , the supply port 11 is configured so that the opening (inlet portion) that opens into the main body casing 1 includes a part of the annular groove 10 in the circumferential direction inside. It is provided in the front wall part 2 so that it may be located in the side of the opening part of the inlet 17 with respect to the inside. Further, the supply port 11 is viewed in a horizontal direction in which the axis A2 is parallel to the axis A3 of the main casing 1 and is orthogonal to the axis A3 of the casing 1 in a plan view (viewed in the vertical direction in FIGS. 1 and 4). 1 and 4, the front wall of the main body casing 1 is in a downward inclined posture that approaches the axis A3 of the main body casing 1 as the axial center A2 approaches the front wall portion 2 of the main body casing 1. Part 2 is provided. Incidentally, the downward inclination angle of the supply port 11 with respect to the horizontal direction (left-right direction in FIGS. 1 and 4) is about 45 degrees as described above.

As shown in FIGS. 4 and 6 , the stator 7 is attached to the inner surface (the surface facing the rotor 5) of the front wall portion 2 of the main body casing 1, and the front wall portion 2 of the main body casing 1 and the stator 7 are connected. It is fixed so as to be integrated. In the stator 7, the plurality of supply chamber side through-holes 7 a disposed in the portion facing the supply chamber 13 are formed in a substantially circular shape, and the plurality of supply chamber side through-holes 7 a are larger than the flow passage area of the supply chamber 13. The total flow passage area is set to be small, and the plurality of introduction chamber side through holes 7b disposed in the portion facing the introduction chamber 14 are formed in a substantially elliptical shape, and the flow passage of the introduction chamber 14 is formed. The total flow passage area of the plurality of supply chamber side through holes 7b is set to be smaller than the area. As the rotor blades 6 of the rotor 5 rotate, the slurry F is discharged through the discharge unit 12, the preliminary mixture Fp is supplied through the supply chamber side through hole 7 a of the supply chamber 13, Since the undissolved slurry Fr is introduced through the suction pump mechanism Y, the pressure in the suction pump mechanism Y is reduced.

As shown in FIGS. 6 and 7, in this embodiment, the raking blades 9 is formed into a rod, viewed in the radial direction of the rotor 5 (the paper front and rear direction as viewed in FIG. 7 (b)), of the rod-like take- located on the distal end side as the front wall portion 2 side of the Detsubasa 9, and, in the axial direction when viewed in the rotor 5 (the paper front and rear direction as viewed in FIG. 7 (a)), as the distal end side of the raking blades 9 of the rod-like The base end portion 9B of the rod-shaped scraping blade 9 is fixed so as to rotate integrally with the rotor 5 in an inclined posture located on the radially inner side of the rotor 5, and the rotor 5 is viewed in the axial direction (see FIG. 7 (a) when viewed from the front and back of the paper surface), the scraping blade 9 is rotationally driven in a direction (the direction indicated by an arrow in FIGS. 4 to 7 ) in which the tip of the scraping blade 9 is the front side.

Based on FIGS. 5 to 7 , the raking blade 9 will be described.
The scraping blade 9 includes a base end portion 9B fixed to the partition plate 15, an intermediate portion 9M that is exposed to the supply chamber 13, and a tip end portion 9T that is fitted in (that is, enters) the annular groove 10. It is configured in a rod shape provided in a series from the proximal end to the distal end.

As shown in FIGS. 5, 6 , and 7 (b), the base end portion 9 </ b > B of the scraping blade 9 is generally formed in a rectangular plate shape.
As shown in FIGS. 5, 6 , 7 (a) and 7 (b ), the intermediate portion 9M of the scraping blade 9 is configured in a generally triangular prism shape with a substantially triangular cross-sectional shape (in particular, (See FIG. 5). Then, by providing the scraping blade 9 in the inclined posture as described above, one side surface 9m (hereinafter referred to as a radiating surface) facing the front side in the rotational direction of the rotor 5 among the three side surfaces of the triangular columnar intermediate portion 9M. Is downwardly inclined toward the front side in the rotational direction of the rotor 5 and is directed radially outward with respect to the radial direction of the rotor 5 (hereinafter sometimes referred to as diagonally outward). (See FIGS. 6 and 7 in particular).

  That is, by providing the bar-like scraping blade 9 in the inclined posture as described above, the intermediate portion 9M exposed to the supply chamber 13 of the scraping blade 9 is more than the tip portion 9T in which the annular groove 10 is fitted. Further, the radiating surface 9m facing the front side in the rotational direction of the intermediate portion 9M is in a front-falling shape inclined toward the front side in the rotational direction of the rotor 5, and in the radial direction of the rotor 5. It is inclined diagonally outward. Thereby, the preliminary mixture Fp scraped from the annular groove 10 by the tip portion 9T of the scraping blade 9 is radially outside the rotor 5 in the supply chamber 13 by the diffusion surface 9m of the intermediate portion 9M of the scraping blade 9. Guided to flow toward the other side.

6, as shown in FIG. 7 (a) and (b), the tip portion 9T of raking blades 9, Ri generally quadrangular prism der the cross-sectional shape is a generally rectangular shape, the axial direction view of the rotor 5 In (the front and back directions in FIG. 7 (a)), the inwardly facing inner surface in which the outwardly facing side surface 9o facing the radially outward side of the rotor 5 among the four side surfaces faces the radially inward side of the inner surface of the annular groove 10 And the inward side surface 9i is formed in an arc shape along the outward inner surface facing the radially outer side of the inner surface of the annular groove 10 on the radially inner side of the rotor 5 of the four side surfaces. Yes.
Of the four side surfaces of the quadrangular columnar tip portion 9T, the scraped surface 9f facing the front side in the rotational direction of the rotor 5 is in a front-falling shape inclined toward the front side in the rotational direction of the rotor 5, and the diameter of the rotor 5 It is configured to face radially outward with respect to the direction (hereinafter sometimes referred to as diagonally outward).
Thereby, the preliminary mixture Fp scraped from the annular groove 10 by the tip portion 9T of the scraping blade 9 is directed radially outward of the rotor 5 by the scraping surface 9f of the tip portion 9T of the scraping blade 9. It will be discharged into the supply chamber 13.
Furthermore, the tip surface 9t of the tip portion 9T of the scraping blade 9 is configured to be parallel to the bottom surface of the annular groove 10 in a state where the tip portion 9T is fitted in the annular groove 10.

The rotor 5 is, if the axial direction when viewed from the tip of the scraping blade 9 in (paper front and rear direction as viewed in FIG. 7 (a)) is driven to rotate in the direction as the front, proximal end of the raking blades 9 A surface (back surface) 9a which is the rear side in the rotation direction is formed on each of 9B, the intermediate portion 9M, and the tip portion 9T. The rear surface 9a is configured such that so-called local boiling (cavitation) occurs when the scraping blade 9 rotates.

  The four scraped wings 9 configured in the above-described shape are arranged in the circumferential direction at intervals of 90 degrees at the central angle in the inclined posture as described above, and the base end portions 9B are respectively arranged. It is fixed to the annular flat plate portion 15 c of the partition plate 15.

As shown in FIG. 4, the partition plate 15 provided with the scraping blades 9 is attached to the attachment portion 5 a on the front surface of the rotor 5 in a state of being separated from the front surface of the rotor 5 by the interval holding member 20. 5 is disposed in the main body casing 1 in a state where the cylindrical sliding contact portion 15a of the partition plate 15 is fitted in the introduction port 17 so as to be slidable and rotatable.
Then, a tapered introduction chamber 14 having a smaller diameter toward the front wall 2 side of the main casing 1 is formed between the bulging front surface of the rotor 5 and the rear surface of the partition plate 15, and the introduction port 17 serves as the partition plate. It is configured to communicate with the introduction chamber 14 via 15 cylindrical sliding contact portions 15a.
An annular supply chamber 13 communicating with the supply port 11 is formed between the front wall portion 2 of the main casing 1 and the front surface of the partition plate 15.

  When the rotor 5 is rotationally driven, the partition plate 15 rotates integrally with the rotor 5 in a state where the cylindrical sliding contact portion 15a is in sliding contact with the introduction port 17, and the rotor 5 and the partition plate 15 are Even in a rotating state, the state where the introduction port 17 communicates with the introduction chamber 14 via the cylindrical sliding contact portion 15a of the partition plate 15 is maintained.

[Recirculation mechanism]
The recirculation mechanism part (an example of a separation part) 70 is configured to separate the lysate by specific gravity in the cylindrical container 71, and as shown in FIG. 1, the discharge path from the discharge part 12 of the suction pump mechanism part Y The undissolved slurry Fr that may contain the powder P that is not completely dissolved is supplied to the circulation path 16 from the slurry F that is supplied through the slurry F. It is comprised so that it may isolate | separate into the discharge path 22, respectively. The discharge path 18 and the circulation path 16 are each connected to the lower part of the cylindrical container 71, and the discharge path 22 is connected to the upper part of the cylindrical container 71 and the supply destination 80 of the slurry F.
Here, although not shown, the recirculation mechanism unit 70 is provided with an introduction pipe to which the discharge path 18 is connected protruding from the bottom surface of the cylindrical container 71, and is connected to the discharge path 22 at the upper part of the cylindrical container 71. A twisting plate for turning the flow of the slurry F discharged from the introduction pipe is provided at the upper discharge end of the introduction pipe with a discharge portion connected to the circulation path 16 at the lower part. It is configured. Thereby, the bubbles of the solvent R can be separated from the slurry F, and the bubbles of the solvent R can be supplied into the introduction chamber 14 in a state of being separated from the undissolved slurry Fr circulated and supplied to the circulation path 16.

(Control part)
Although not shown, the control unit provided in the dispersion system 100 includes a known arithmetic processing device including a CPU, a storage unit, and the like, and includes a quantitative supply device X, a suction pump mechanism unit Y, and a solvent supply unit that constitute the dispersion system 100. The operation of each device such as 50 can be controlled.
In particular, the control unit is configured to be able to control the rotation speed of the rotor 5 (rotary blade 6), and the pressure in the outlet region of the supply chamber side through hole 7a and the introduction chamber side through hole 7b (throttle through hole) of the stator 7 is controlled. The rotation speed of the rotor blade 6 is set so that the saturated vapor pressure of the solvent R (3.169 kPa in the case of water at 25 ° C.) or less is set over the entire circumference of the outlet region, and the rotation speed is set. By rotating the blade 6, at least the region in the blade chamber 8 immediately after passing through the supply chamber side through hole 7 a and the introduction chamber side through hole 7 b of the stator 7 is continued over the entire circumference of the blade chamber 8. Thus, the microbubble region of the solvent R can be formed as a microbubble region where a large number of microbubbles are generated.

[Distributed system operation]
Next, the operation of the distributed system 100 will be described.
First, the quantitative supply device X is stopped, the shutter valve 46 is closed, and the suction of the powder P through the powder discharge pipe 45 is stopped, and the rotor 5 is moved while supplying only the solvent R from the solvent supply unit 50. Rotate and start the operation of the suction pump mechanism Y. When the predetermined operating time has elapsed and the inside of the suction pump mechanism Y is in a negative pressure state (for example, a vacuum state of about −0.06 MPa), the shutter valve 46 is opened. As a result, the expansion chamber 47 of the quantitative supply device X is brought into a negative pressure state (about −0.06 MPa), and the inside of the introduction part 41 and the vicinity of the lower opening 31b of the hopper 31 are between the negative pressure state and the atmospheric pressure state. To the pressure state.

Then, the quantitative supply device X is operated, and the powder P stored in the hopper 31 is quantified from the lower opening 31b of the hopper 31 by the stirring action of the stirring blade 32A and the negative pressure suction force of the suction pump mechanism Y. Through the expansion chamber 47 of the supply unit 40, a predetermined amount is continuously supplied in a predetermined amount to the mixing member 61 of the mixing mechanism 60. In parallel, the solvent supply unit 50 is operated, and the solvent R is continuously supplied in a predetermined amount to the mixing member 61 of the mixing mechanism 60 by the negative pressure suction force of the suction pump mechanism unit Y.
From the mixing member 61 of the mixing mechanism 60, the powder P is supplied to the supply port 11 through the cylindrical portion 62 of the mixing member 61, and the solvent R has a hollow cylindrical vortex flow without a break through the annular slit 63. The powder P and the solvent R are preliminarily mixed through the supply port 11 in a state, and the preliminary mixture Fp is introduced into the annular groove 10.

When the rotor 5 is driven to rotate and the partition plate 15 rotates integrally with the rotor 5, the scraping blade 9 provided concentrically on the partition plate 15 is inserted into the annular groove 10 with the tip 9 </ b> T. Circulate in a state.
Then, as shown by solid line arrows in FIGS. 4 and 5, the preliminary mixture Fp flowing through the supply port 11 and introduced into the annular groove 10 is fitted into the annular groove 10 and the tip of the scraping blade 9 that circulates. The preliminary mixture Fp that is scraped out by the portion 9T is roughly divided into the rotor 5 while being along the front surface of the funnel-shaped portion 15b and the front surface of the annular flat plate portion 15c in the partition plate 15 in the supply chamber 13. , Further flows through the supply chamber side through hole 7a of the stator 7 and flows into the blade chamber 8, flows in the blade chamber 8 in the rotation direction of the rotor 5, and is discharged from the discharge section 12. Is done.

The preliminary mixture Fp introduced into the annular groove 10 undergoes a shearing action when it is scraped by the tip portion 9T of the scraping blade 9. In this case, between the outward side surface 9o of the tip portion 9T of the scraping blade 9 and the inward inner surface of the inner annular groove 10, and the inward side surface 9i of the tip portion 9T of the scraping blade 9 and the inner annular groove. A shearing action acts between the 10 outward inner surfaces. At the same time, the so-called local boiling (cavitation) occurs on the rear surface 9a on the rear side in the rotational direction of the scraping blade 9 as the scraping blade 9 rotates. Further, when passing through the supply chamber side through hole 7 a of the stator 7, a shearing action works.
That is, since a shear force can be applied to the preliminary mixture Fp in the supply chamber 13 and local boiling can be generated, the preliminary mixture Fp to be scraped is sheared from the scraping blade 9 and the supply chamber side through hole 7a. As a result, the powder P is more favorably dispersed in the solvent R due to local boiling (cavitation) generated on the back surface 9 a of the scraping blade 9. Therefore, such a preliminary mixture Fp can be supplied, and good dispersion of the powder P with respect to the solvent R in the blade chamber 8 can be expected.

  The slurry F discharged from the discharge unit 12 is supplied to the recirculation mechanism unit 70 through the discharge path 18, and in the recirculation mechanism unit 70, the undissolved slurry Fr in a state containing the powder P that is not completely dissolved, The powder P is separated into the slurry F in a substantially completely dissolved state, and the bubbles of the solvent R are separated. The undissolved slurry Fr is supplied again to the inlet 17 of the suction pump mechanism Y through the circulation path 16. Then, the slurry F is supplied to the supply destination 80 through the discharge path 22.

  The undissolved slurry Fr is introduced into the introduction chamber 14 through the throttle portion 14a of the introduction port 17 in a state where the flow rate is limited. In the introduction chamber 14, it is shattered by a plurality of rotating stirring blades 21 to be further finely crushed, and is further shattered by the shearing action when passing through the introduction chamber side through hole 7 b. The At this time, the air is introduced into the blade chamber 8 in a state where the flow rate is limited via the introduction chamber side through hole 7b. Then, in the blade chamber 8, the slurry F, which is crushed by the shearing action by the rotating blade 6 rotating at a high speed, and the aggregate (dama) of the powder P is further reduced, is the slurry F from the supply chamber 13. It is mixed and discharged from the discharge part 12.

Here, the pressure in the blade chamber 8 which is the exit region of the supply chamber side through hole 7a and the introduction chamber side through hole 7b of the stator 7 becomes equal to or lower than the saturated vapor pressure of the solvent R over the entire circumference by the control unit. Thus, the rotational speed of the rotary blade 6 is set, and the rotary blade 6 is rotated at the set rotational speed.
Thereby, the pressure in the blade chamber 8 which is the said exit area | region is below the saturated vapor pressure (3.169kPa in the case of 25 degreeC water) of the solvent R over the perimeter by the rotation speed setting of the rotary blade 6 by this. Therefore, at least in the region in the blade chamber 8 immediately after passing through the supply chamber side through-hole 7a and the introduction chamber side through-hole 7b of the stator 7, generation of fine bubbles (microbubbles) due to evaporation of the solvent R is promoted. In this state, the region is formed as a fine bubble region in which a large number of fine bubbles are generated continuously over the entire circumference of the blade chamber 8.
Therefore, the crushing of the aggregate is promoted by foaming of the solvent R permeating the aggregate (so-called lumps) of the powder P over the entire circumference of the blade chamber 8, and the generated fine bubbles are further promoted. The dispersion of the powder P is further promoted by the impact force at the time when the blade chamber 8 is pressurized and disappears, and as a result, over almost the entire slurry F existing in the entire circumference of the blade chamber 8, A high-quality slurry F with good dispersion of the powder P in the solvent R can be produced.

Next, based on FIG. 8 , the configuration of the present embodiment is adopted, the throttle port 14 a is provided in the introduction port 17, the supply chamber side through hole 7 a and the introduction chamber side through hole 7 b are provided in the stator 7, and the rotor The verification test result in the case where the rotational speed of 5 (rotary blade 6) is appropriately controlled will be described.

In FIG. 8 , the main body casing 1 is made of a transparent resin, water as a solvent R is passed through the suction pump mechanism Y, and the inside of the blade chamber 8 in which the rotating blade 6 rotates is observed from the outer peripheral side. 8 (a) to 8 (c), the rotational speed of the rotor blades 6 is increased. The rotational speed of the rotor blades 6 is 630 rpm in (a), 1800 rpm in (b), ( c) shows an example of 2400 rpm.

As can be seen in FIG. 8 (a), in the rotational speed is relatively low state of the rotating blades 6, at the exit region of the feed chamber side through hole 7a and the introduction chamber side through hole 7b of the stator 7 (stop hole) The pressure in a certain blade chamber 8 is higher than the saturated vapor pressure of water (in the case of water at 25 ° C., 3.169 kPa), and immediately after passing through the supply chamber side through hole 7a and the introduction chamber side through hole 7b. In the solvent R, a part of the solvent R, that is, the supply chamber side through-hole 7a and the introduction chamber side through-hole 7b passes through a part of the solvent R due to a rapid pressure drop on the back surface 6a of the rotary blade 6. Only in the solvent R existing in the vicinity of 6a, local boiling (cavitation) occurs only in an intermittent state in the circumferential direction, and in the entire solvent R that has passed through the supply chamber side through hole 7a and the introduction chamber side through hole 7b. May be discharged as it is to the discharge unit 12 without boiling. It is in a state. That is, this condition appears white region existing blade chamber 8 in FIG. 8 (a) is a very small state.
On the other hand, as can be seen in FIG. 8B , in the state where the rotational speed of the rotary blade 6 is relatively high, the inside of the blade chamber 8 which is the outlet region of the supply chamber side through hole 7a and the introduction chamber side through hole 7b. Is at or below the saturated vapor pressure of water (3.169 kPa in the case of water at 25 ° C.) over the entire circumference, and at least the supply chamber side through hole 7 a and the introduction chamber side through hole 7 b in the blade chamber 8. In the region immediately after passing through, the solvent R in addition to the local boiling (cavitation) of the solvent R existing in the vicinity of the back surface 6a of the rotor blade 6 in the blade chamber 8 due to a rapid pressure drop at the back surface 6a of the rotor blade 6. The generation of microbubbles (microbubbles, which are microbubbles referred to in the present application) is promoted by vaporization of the gas, and the region is formed as a microbubble region in which many microbubbles are generated continuously over the entire circumference of the blade chamber 8. It is a state that has been. Namely, this condition appears white region existing blade chamber 8 is in a state of very many occurred cloud in FIG. 8 (b). Moreover, as found in FIG. 8 (c), the at higher state rotational speed of the rotor blades 6, the fine air bubbles due to vaporization of the solvent R over the entire circumference of the blade chamber 8 (microbubbles) are more A fine bubble region where a large number of fine bubbles are generated is formed more clearly. That is, this condition appears white region existing blade chamber 8 in FIG. 8 (c) it is very much (more than FIG. 8 (b)) to the cloud is a state that is occurring.

Thus, normally, in the suction pump mechanism Y, local boiling (cavitation) that occurs only on the back surface 6a of the rotary blade 6 in the blade chamber 8 in the outlet region of the supply chamber side through hole 7a and the introduction chamber side through hole 7b. ) While the powder F had been a sufficient be dispersed in a solvent R only the state (FIG. 8 (a)), the present inventors have, for example, the proportion of the powder P in the solvent R is relatively large Even when it is necessary to further improve the dispersion performance, as described above, the blades which are the outlet regions of the supply chamber side through-hole 7a and the introduction chamber-side through hole 7b of the stator 7 are set by setting the rotation speed of the rotary blade 6. the pressure in the chamber 8 over its entire circumference and saturated vapor pressure of a solvent R, in the wing chamber 8, possible to generate a more extensive boiling solvent R (in FIG. 8 (b), ( c) state), almost all of the slurry F existing all around the blade chamber 8 It was possible to produce a high-quality slurry F with good dispersion of the powder P in the solvent R over the body. Therefore, from the above results, in the configuration according to the above embodiment, when the rotation speed of the rotor 5 is set to at least 1800 rpm or more, the pressure in the blade chamber 8 becomes equal to or lower than the saturated vapor pressure of the solvent R over the entire circumference. It was confirmed that fine bubbles (micro bubbles) could be generated over the entire circumference of the blade chamber 8.

[Another embodiment]
(A) In the above embodiment, the controller controls the number of rotations of the rotor 5, and the pressure in the outlet region of the supply chamber side through hole 7a and the introduction chamber side through hole 7b is equal to or lower than the saturated vapor pressure of the solvent R over the entire circumference. Was set appropriately. However, the rotational speed of the rotor 5 is not limited to this, so that the pressure in the outlet region of the supply chamber side through hole 7a and the introduction chamber side through hole 7b is lower than the saturated vapor pressure by a predetermined pressure over the entire circumference. The fine bubble region that is set and promotes the generation of fine bubbles (micro bubbles) due to the vaporization of the solvent R continuously throughout the entire circumference of the blade chamber 8 that is the outlet region. Can also be formed. In this case, the rotational speed of the rotor 5 is set somewhat larger than 1800 rpm.

(B) In the above embodiment, the partition plate 15 is provided on the front side of the rotor 5 so as to rotate integrally with the rotor 5, and the scraping blade 9 is provided on the partition plate 15. If the powder P can be appropriately dispersed in the solvent R without circulating part of the slurry F to be circulated, the recirculation mechanism 70 can be omitted or the partition plate 15 can be omitted. In this case, the scraping blade 9 may be provided directly on the rotor 5.

(C) In the above embodiment, a single type of CMC powder is used as the powder P. However, a mixed powder obtained by mixing a plurality of types of powder can be used as the powder P if necessary. . Similarly, although a single type of water is used as the solvent R, a mixed liquid obtained by mixing a plurality of types of liquid can be used as the solvent R as necessary.
Further, the powder P is not particularly excluded as long as it is a powder, and is a chemical raw material such as a battery electrode material, a food raw material such as skim milk powder or wheat flour, a pharmaceutical raw material, etc. Examples thereof include fine particles (including a mixture of these powders). The powder includes a granular material.
Furthermore, the dispersoid is not limited to the powder P (solid phase dispersoid) exemplified in the above embodiment, and the emulsion may be generated as a liquid (liquid phase dispersoid). . For example, the present invention can also be applied to the case where oil as a liquid phase dispersoid is dispersed in water as a liquid phase dispersion medium.

  As described above, a dispersion method capable of promoting the dispersion of the dispersoid in the liquid phase dispersion medium well over the entire mixed fluid that has passed through the throttle aperture of the stator, and generating a high-quality sol, and A distributed system can be established.

1 Body casing (suction pump mechanism)
5 Rotor 6 Rotor blade 6a Back surface part 7 Stator 7a Supply chamber side through hole (diaphragm through hole)
7b Introduction chamber side through hole (diaphragm through hole)
8 Wing chamber (exit area)
9 Scraping blade 12 Discharge part (exit area)
13 Supply chamber 14 Introduction chamber 14a Restriction section 15 Partition plate 60 Mixing mechanism (supply mechanism section)
70 Recirculation mechanism part 71 Separation part (cylindrical container)
100 Dispersion system Y Suction pump mechanism part F Slurry (sol)
Fp Premix Fr Undissolved slurry (part of sol)
P powder (dispersoid)
R solvent (liquid phase dispersion medium)

Claims (6)

An introduction chamber to which a fluid is supplied, a cylindrical stator that is arranged on the outer peripheral side of the introduction chamber and includes a plurality of throttle through holes arranged in the circumferential direction, and an annular shape that leads to a discharge portion formed on the outer peripheral side of the stator The blade chamber and a rotor blade that can be rotationally driven in the blade chamber are disposed in the main body casing, and fluid is sucked from the introduction chamber to the blade chamber through the throttle through-hole by the rotational drive of the rotor blade. Using a centrifugal suction pump mechanism that discharges fluid from the blade chamber to the discharge unit, and passing a mixed fluid of a dispersoid and a liquid phase dispersion medium through the suction pump mechanism unit, A dispersion method for producing a sol in which the dispersoid is dispersed,
A throttle is provided at the inlet of the introduction chamber,
The inner diameter of the throttle portion is smaller than the circulation path for supplying fluid to the introduction chamber,
The supply chamber is formed by being partitioned by a partition plate with respect to the introduction chamber, and is provided with a supply chamber that communicates with the blade chamber through the throttle through hole of the stator.
While supplying a premixture prepared by premixing the dispersoid and the liquid phase dispersion medium to the supply chamber and circulatingly supplying a part of the sol discharged from the discharge section to the introduction chamber as the mixed fluid,
The rotational speed of the rotor blade is set so that the pressure in the outlet region of the throttle through hole of the stator is equal to or lower than the saturated vapor pressure of the liquid phase dispersion medium over the entire circumference of the outlet region, and the set rotation A dispersion method in which the rotor blades are rotated by a number to form at least a region immediately after passing through the apertures of the stator in the blade chamber as a fine bubble region in which a large number of fine bubbles of the liquid phase dispersion medium are generated. The dispersion method according to claim 1 , wherein the dispersoid is a powder, and a sol in which the powder is dissolved in the liquid phase dispersion medium is generated . An introduction chamber to which a fluid is supplied, a cylindrical stator that is arranged on the outer peripheral side of the introduction chamber and includes a plurality of throttle through holes arranged in the circumferential direction, and an annular shape that leads to a discharge portion formed on the outer peripheral side of the stator The blade chamber and a rotor blade that can be rotationally driven in the blade chamber are disposed in the main body casing, and fluid is sucked from the introduction chamber to the blade chamber through the throttle through-hole by the rotational drive of the rotor blade. A centrifugal suction pump mechanism that discharges fluid from the blade chamber to the discharge unit, and a fluid mixture of a dispersoid and a liquid phase dispersion medium is passed through the suction pump mechanism unit, and the liquid phase dispersion medium A dispersion system for producing a sol in which the dispersoid is dispersed,
Provided with a throttle at the inlet of the introduction chamber,
The inner diameter of the throttle portion is smaller than the circulation path for supplying fluid to the introduction chamber,
A supply chamber that is formed by being partitioned by a partition plate with respect to the introduction chamber, and that communicates with the blade chamber through an aperture hole of the stator;
A supply mechanism for supplying a premixed mixture of the dispersoid and the liquid phase dispersion medium to the supply chamber, and a part of the sol discharged from the discharge section is circulated and supplied to the introduction chamber as the mixed fluid. And a recirculation mechanism that
The controller for controlling the operation adjusts the rotational speed of the rotor blades so that the pressure in the outlet region of the throttle through hole of the stator is equal to or lower than the saturated vapor pressure of the liquid phase dispersion medium over the entire circumference of the outlet region. Set,
The region immediately after passing through at least the stator through hole of the stator in the blade chamber by rotating the rotary blade at the set rotation speed while operating the supply mechanism unit and the recirculation mechanism unit , A dispersion system formed as a fine bubble region in which a large number of fine bubbles of a liquid phase dispersion medium are generated. The dispersion system according to claim 3 , wherein the dispersoid is a powder, and a sol in which the powder is dissolved in the liquid phase dispersion medium is generated .   The dispersion system according to claim 4, wherein the recirculation mechanism includes a separation unit that separates bubbles from the sol that is circulated and supplied to the introduction chamber. The partition plate is connected to a rotor provided with the rotor blades and is rotatable.
The dispersion system according to claim 4 or 5, wherein a scraping blade that scrapes the preliminary mixture at the inlet of the supply chamber toward the supply chamber is provided on the partition plate.