JPH1142431A - Atomizing method and device therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device capable of emulsifying, dispersing, pulverizing or the like without excessively increasing a flow rate or pressure by increasing the frequency of divergence, collision and confluence of fluid with a simple structure. SOLUTION: A device is for atomizing a material and discharging it from an outlet side block A4 by introducing a fluid to be treated, in which the material to be atomized is dispersed, at a high speed from an inlet side block A1 into a closed vessel provided with the inlet side block A1 and the outlet side block A4 , after branching the flow to plural through holes X, Y, Z and V, colliding with each other as a high speed flow in the direction to collect them again. Then, after the liquid to be treated fed at the high speed is diffused in the centrifugal direction, changed in the flow direction to the feeding direction from the plural positions of an end part in the diffusion direction to be branched, collided with the wall surface at the tip part of a divergence block A2 , after the liquid rapidly lowering the pressure, flows in the centripetal direction inclined to the feeding direction, the liquid is collided with the wall surface at the tip part, further collected into the center direction and after being collided with the wall surface and being joined at the center position, the liquid is discharged to the same direction as the feeding direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an atomizing method and apparatus for emulsifying, dispersing, crushing, etc. by causing a fluid to be treated to collide at a high speed, and more particularly, to a method for atomizing a fluid to be treated in an apparatus. -Along with the merging, by forming a sharp drop portion of the fluid pressure in the supply flow path, the atomization method and device that can promote the atomization of the substance dispersed in the fluid to be processed, This device can be effectively used for manufacturing or treating food, medicine, cosmetics, chemicals, and the like.

[0002]

2. Description of the Related Art Conventionally, devices for atomizing a substance by using high pressure and high speed are roughly classified into a valve plate type and a two-liquid collision type which have been used for the longest time in history. In the valve plate type, basically, a fluid converted from high pressure to high speed is caused to collide with a wall surface and then discharged to the outside of the apparatus. A specific configuration is described in JP-B-44-2921. Liquid treatment equipment. In this type of configuration, the fluid to be treated is introduced into the first homogenizing valve assembly from the inlet opening via the pump, flows radially through the gap between the valve seat and the valve, and collides with the inner wall of the valve body. Atomization is performed and further introduced into a second stage homogenization valve assembly of the same construction. In this configuration, the impact energy depends only on the radially flowing fluid velocity.

On the other hand, as a two-liquid collision type apparatus, for example, an emulsifying apparatus as described in Japanese Patent Application Laid-Open No. 2-261525 is known. This device is shown in FIGS. 6 and 7 (A).
(Viewed in the direction of the arrows AA in FIG. 6), FIG.
As shown in FIG. 2B), two block members 60 and 61 made of a hard material are disposed in close contact with the fluid passage to be processed, and two through holes 60 are formed in the block member 60 on the inflow side.
a, 60b are formed, the outlets of the through holes are communicated with each other by a groove-like passage 60c, and the block-like member 61 closely attached to the block member 60 is provided with a groove-like passage 61c in a direction orthogonal to the groove-like passage 60c. And through holes 61a, 61 for discharging the mixture at each end thereof.
1b. These block members 60, 61
The flow of the fluid to be treated is introduced at a high pressure and a high speed into the inside thereof, whereby the flow of the fluid to be treated is forcibly accelerated as a counterflow, and the two liquids collide at a high speed to emulsify.

[0004]

In the above-described conventional valve plate type, atomization is performed when the gas passes through the gap between the valve seat and the valve and collides with the wall surface. Therefore, the collision at the time of atomization is insufficient, and it is not always possible to obtain a satisfactory atomization effect.

[0005] On the other hand, in the two-liquid collision type, a high-speed flow is formed by branching and introducing a high-pressure fluid to be processed into two narrow passages, and the high-speed flow collides from opposite directions to atomize the fluid. However, since the collision is essentially only once, a sufficient atomization effect cannot be obtained. And, in order to obtain a high degree of atomization effect with substantially one collision,
The pressure and flow velocity of the fluid to be treated must be increased excessively,
As the pressure and flow velocity are increased, the pressure loss increases exponentially, and not only the energy loss increases, but also the wear amount of the portion where the fluid to be treated collides increases exponentially, resulting in a problem that the life of the apparatus is significantly shortened. Will occur.

The present invention has been made in view of such circumstances, and the number of times of branching, collision, and joining of fluids such as emulsification, dispersion, and crushing is increased by a simple mechanism, and the flow velocity and pressure are excessively increased. An object of the present invention is to provide an atomization method and apparatus capable of efficiently performing emulsification, dispersion, crushing, and the like without increasing the size. Another object of the present invention is to provide a method and an apparatus which can simplify the structure of the atomizing member and suppress local wear of the atomizing member due to the fluid to be processed flowing at high pressure and high speed. It is assumed that.

[0007]

According to the present invention, there is provided a method for atomizing, comprising: a treatment vessel in which a substance to be atomized is dispersed in a closed vessel having a flow path inlet and a flow path outlet; The fluid is introduced at a high speed from the inlet of the flow channel, the flow is branched into a plurality of flow channels, and then the high-speed flow is formed and collided with the flow again, whereby the substance is atomized and the flow is reduced. A method of discharging from a road exit, in which a fluid to be processed fed at a high speed is diffused in a centrifugal direction, and then a flow direction is changed from a plurality of positions at ends of the diffusion direction to a flow direction substantially the same as the feeding direction to divide the flow. After colliding with the wall surface at the leading end of each branch, they are caused to flow in the centripetal direction inclined in the feeding direction, collided with the wall surface at the leading end, and further concentrated in the center direction and collided at the center position. Said sending There is subject matter where to discharge the direction the same direction.

In carrying out this method, a cavity is formed at the outlet of each of the branch streams to rapidly expand the area of the flow path and rapidly decrease the pressure of the fluid to be treated. This further promotes atomization, which is preferable.

Further, the atomization apparatus according to the present invention is an apparatus which can be effectively utilized when performing the above-mentioned atomization method,
In a closed vessel having a flow path inlet and a flow path outlet, a fluid to be atomized, in which a substance to be atomized is dispersed is introduced at a high speed from the flow path inlet, and the flow is branched into a plurality of flow paths. A device for forming and colliding a high-speed flow in a direction in which these are gathered to atomize the substance and discharge it from the outlet of the flow path, and has a plurality of axial through holes A at substantially the same radial position from the center. A first block, a second block having one axial through hole B at a substantially central position and being concentrically disposed in close contact with the first block, and between the first block and the second block; Is the plurality of axial through holes A
The gist lies in that an annular groove is formed which is continuous with the groove, and an inclined annular flow path extending from the annular groove toward the one axial through hole B is formed.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the drawings. However, the present invention is not limited to the illustrated examples and is not intended to limit the present invention. It is also possible to carry out the present invention with appropriate modifications as far as possible, and all of them are included in the technical scope of the present invention.

FIG. 1 is an explanatory longitudinal sectional view illustrating an atomizing method according to the present invention and an atomizing apparatus used for carrying out the method. In FIG. 1, an atomizing apparatus M includes an atomizing block group A described later. The cylindrical casing 1 is arranged in close contact with its axis aligned, and at one end of the casing 1, a pressing member 2 of a different diameter for pressing one end of the atomization block group A is provided. A plurality of pins 3 arranged to prevent co-rotation are fitted to the casing 1 and the holding member 2.

A through hole 2a is provided at the center of the holding member 2 and communicates with the inlet of the channel of the atomization block group A. A male screw is formed on the outer periphery of one end of the casing 1, A cap nut 4 is screwed into the male screw.

The opening 4a of the cap nut 4 is configured so that the cylindrical portion 2b of the holding member 2 can be inserted therethrough.
The inner edge 4b is adapted to abut the annular skirt 2c of the cylindrical portion 2b of the holding member 2, and when the cap nut 4 is tightened, the holding member 2 is pushed toward the other end of the casing 1. And thereby the atomized block group A
Can be pressed inward.

A female screw is formed on the inner wall of the barrel of the cylindrical portion 2b of the holding member 2. If a gland nut 6 having the high-pressure pipe 5 penetrated therewith is screwed with the cylindrical portion 2b, the high-pressure pipe 5 Can be brought into close contact with the entrance of the through-hole 2a of the holding member 2. The high-pressure pipe 5 and the through-hole 2a of the holding member 2 are located on the flow channel inlet side.

On the other hand, the other end structure of the casing 1 is configured symmetrically to the above-mentioned one end portion, and has a holding member 2 ', a pin 3', and a substantially same structure as the one end portion.
A cap nut 4 ', a high-pressure pipe 5', and a gland nut 6 'are provided, of which a through hole 2a' of the holding member 2 'is provided.
And the high-pressure pipe 5 'are on the outlet side of the flow path. Reference numerals 7, 7 'in the drawing denote sleeves to be screwed to the connection-side ends of the high-pressure pipes 5, 5'.

Next, the configuration of the atomized block group A will be described in detail with reference to FIG. Atomization block group A in the illustrated example, the inlet side block A _1, shunt block A _2, is configured to concentrate the block A ₃ and exit side block A ₄ and concentrically arranged close, the axis in the entry side block A ₁ Through hole x in core
There while being formed, the outlet side of the through hole x is gradually拡流path x ₁ to gradually diffuse the flow by increasing the inner diameter in the centrifugal direction is formed.

Further the shunt block A _2, said with gradually拡流path plurality of through holes y in a position substantially corresponding to the maximum inner diameter portion of x ₁ is formed, longitudinal sectional shape of the outlet-side flanged pot Is formed. Note in the illustrated example, although constrained by positioning the diverter block A ₂ from the outer peripheral side by the positioning ring A _5, they can of course be formed in one piece. In the illustrated example, an example is shown in which four through holes y are formed and divided into four flow paths. However, it is of course possible to form three or five or more and change the number of divided flow.

Dividing block A_Two Collection placed next to
Middle block A_Three In the above, the diversion block A_Two Two-step recess
A substantially trapezoidal projection d that projects in the w direction is formed,
A through hole z is formed in the shaft center. And the above branch
Lock A_Two And concentrated block A _Three With the
A large capacity annular groove R is formed at the tip end of the through hole y.
At the same time, the tip side of the substantially trapezoidal protrusion d and the branching block
A_Two So that a narrow gap is formed on the inner surface side of the two-step recess w
The dimensions have been adjusted. As a result, the shunt block A_Two And collection
Middle block A_Three In the state where is closely arranged, as shown in the figure,
Large enough to surround the substantially frustoconical projection d on the tip side of the through hole y.
An annular groove R having a volume is formed, and the annular groove R is inclined from the annular groove R.
A centrifugal annular flow path S inclined backward,
A_Two , A_Three Flow in a direction substantially perpendicular to the axis
A path T will be formed.

The channel area of the annular groove R, the annular channel S, and the planar channel T is determined by the depth and width of the two-step recess w formed in the branch block A ₂ and the central block A ₃ . It can be arbitrarily changed by changing the height, the outer diameter, and the like of the substantially trapezoidal projection d. The outlet-side block A ₄ is formed before substantially symmetrically and fill side blocks A _1, Utatechijimi channel v ₁ and the through hole v which gradually reduce the internal diameter is formed.

Accordingly, when these blocks are connected in the axial direction and the fluid to be treated is fed at a high pressure and at a high speed from the direction of the arrow, the fluid to be treated is as shown by the arrow and as schematically shown in FIG. , through after treated fluid sent into the hole x is colliding with the facing surface of the diverter block a ₂ at its distal end, a plurality of through holes at its outer peripheral edge from diffused in the centrifugal direction gradually at拡流path x ₁ In this case, the air flow diverges into the flow path y and collides with the wall surface at the outlet end side of each through-hole y to receive an impact, and a sharp pressure drop occurs in the wide annular flow path R formed at the outlet end. The cavitation effect caused by the wall collision and the rapid change of the dynamic pressure,
Due to the additive or synergistic effects of turbulence generated within
Substances in the fluid to be treated are remarkably atomized.

After that, a narrow annular flow path S formed obliquely rearward from the wide annular flow path R flows in the direction of the arrow, and collides with the plane flow path T at the bent portion. the flow in the centripetal direction, after which the process fluid mutual collision has occurred coming concentrated from 360 degree direction at a central portion thereof flows through the through-holes z provided in centralized block a ₃ to the downstream side. At the exit of the through hole z, the exit block A ₄
Once released into the Utatechijimi channel v ₁ provided, and is discharged through the through-hole V since the further atomization undergo cavitation effects due to rapid dynamic pressure changes.

The outgoing block A_Four Reducing channel v provided in
₁ Is not essential, and the through hole v extends to the entry side end.
The outlet block may be
A _Four Omitting itself, concentrated block A_Three The through hole z
It may be directly connected to the outlet channel. In addition, the present invention
What is important in achieving the target is the atomized block group A
Of the diversion block A_Two And concentrated block A_Three In
These blocks cause shunting and collision, and a sudden drop in pressure.
Ensuring a configuration that can exhibit the cavitation effect due to the bottom
And therefore the incoming block A₁ And exit block A
_Four Is not limited to the illustrated one.

Therefore, the atomized block group A is arranged in the casing 1 as shown in FIG.
When the fluid to be treated is flowed at high pressure and high speed in the direction of the arrow while being pressed and adhered from both sides with 2 'or the like, as shown in FIG.
Target fluid coming sent from the through-hole x direction is gradually flowed at拡流path x ₁ at its outer peripheral end portion after diffusing in the centrifugal direction four through holes y, y, a ...... minute, a tip target fluid jetted at high speed from the well as collide with the facing surface of the central block a _3, atomization undergo cavitation effects caused by abrupt step down when it is injected into the annular groove R of the mass is promoted. Thereafter, as described above, the annular flow path S
Collides with the wall surface with an annular flow at the bend in the direction of the planar flow path T, flows further in the planar flow path T in the centripetal direction, receives collisions of fluids at the center thereof, and passes through the through hole z on the downstream side. Is discharged. During that time, atomization is further promoted at each collision, and the substance in the fluid to be treated is discharged in a state of extremely atomized.

As described above, according to the present invention, in the process of flowing through the flow path in the atomization block group A, the cavitation effect due to the collision of the fluid to be processed with the flow path wall, the collision between the fluids, and the rapid pressure drop. As a result, the substance (dispersoid) in the fluid to be processed is extremely atomized.

The fluid channels formed in the atomization block group A shown in FIG. 2 include through holes x, y, z, v, a gradually expanding channel x ₁ , a gradually reducing channel v ₁ , and an annular groove. R, an annular flow path S, and a planar flow path T, and the collision positions are dispersed in the circumferential direction. Therefore, atomization of a type in which fluid collision and merging are performed while changing the flow path through a conventional narrow groove. Compared to the device, local wear of the flow path due to the high-speed fluid is also suppressed, and the life as a whole can be extended. In addition, the design and processing of each block is performed, for example, as shown in a partially broken development in FIG. 4, by turning a substantially frustoconical projection d and a two-step recess w using a lathe, and through-hole and gradually expanding or contracting. Since it is only necessary to form a hole in the flow path, and it is not necessary to form a groove in which processing and dimensional accuracy adjustment are relatively difficult, workability and maintenance of the entire atomized block group A can be simplified.

Next, a description will be given of the peripheral configuration when the above-mentioned atomization method or the atomization apparatus is put into practical use. For example, in the case of obtaining a fine emulsion, the water-based fluid and the oil-based fluid are separately drawn and combined. A mixed liquid is prepared by the method described above, and the mixed liquid is adjusted to be supplied to a pulverizer while adjusting a flow rate of the mixed liquid to produce an emulsion in which an oil-based fluid is finely dispersed. When finely dispersing solid particles insoluble in a solvent such as water, a suspension is prepared by mixing solid particles to be dispersed in the solvent, and the suspension is adjusted to obtain fine particles while adjusting the flow rate. A colloidal dispersion in which solid particles are finely dispersed is produced by pumping to a device. At this time, in order to further enhance the stability of the emulsion or fine dispersion after atomization, it is also effective to mix an appropriate amount of an emulsion stabilizer or a dispersion stabilizer.

It has also been confirmed that sterilization or sterilization is performed when a fluid is collided at a high speed. Therefore, as another application of the present invention, the atomization and sterilization of a fluid to be treated are performed in parallel. Therefore, the present invention can be very effectively utilized not only in atomization used in the general chemical industry field but also in the food field and the medical field in which contamination of bacteria and the like must be avoided from a hygiene point of view.

FIG. 5 shows an embodiment in which the present invention is applied to the preparation of a finely dispersed emulsion. A container 50 for storing an aqueous fluid and a container 51 for storing an oil-based fluid are shown. Each fluid in these containers 50, 51
The flow is adjusted by the valves 50a and 51a, respectively, and merged by the pipe 52 to be supplied to the suction port of the variable displacement pump P. In the variable displacement pump P, for example,
The mixture is pressurized to about 0 to 150 MPa and introduced into the atomization device M as a high-pressure, high-speed flow, where the atomization treatment is performed as described above.

With such an atomizing system, the mixing ratio of the raw material fluid can be arbitrarily adjusted in addition to the atomizing effect, and an emulsion or colloidal dispersion having an arbitrary mixing ratio can be obtained without the need for a stirring device. A liquid can be obtained easily.

When the atomization method is carried out, in order to effectively exert the effect of the present invention, the flow rate of the fluid to be treated in the flow channel where the split flow, collision, and mixing are performed is 80 to 460.
It is better to control to about m / sec. However, if the flow velocity is too low, it is difficult to achieve a satisfactory atomization effect due to insufficient energy at the time of individual collision and mixing, while if the flow velocity is too high, the wall of the collision site will be significantly worn. It is. A more preferred lower limit of the flow rate for industrial practical use is about 150 m / sec, more preferably about 220 m / sec, and a more preferred upper limit of the flow rate is about 330 m / sec, more preferably 270 m / sec.
c.

Further, in order to suppress the abrasion of the inner wall of the flow channel at the collision portion by adopting such a high-speed flow, the diverting block and the concentrating block may be made of ceramic material such as WC or zirconia, sintered diamond, It is preferable to use an ultra-hard material such as crystalline diamond, or the base material is made of a metal such as stainless steel, and an ultra-hard layer such as the sintered diamond or single-crystal diamond is formed on the inner wall surface of the collision site where wear is most severe. It is also effective to secure abrasion resistance by forming.

In the present invention, as described above, the atomization in the atomization block group A is promoted by the impact of the fluid to be treated on the wall surface, the branching, and the cavitation effect due to the sudden change in pressure. In addition, the back pressure is adjusted on the exit side from the atomization block group A,
It is also effective to totally control the atomization effect in the atomization block group A portion.

FIG. 8 is a schematic sectional view showing a typical example of a back pressure adjusting device used in carrying out such a method. The function of controlling the outlet pressure in the atomization device and controlling the magnitude of the cavitation effect due to the collision energy or the sudden pressure change generated in the atomization block group A portion is exhibited.

That is, the back pressure adjusting device comprises a casing 20 having a circular cavity formed therein, a valve seat 21, a rod-shaped valve body 22, and a valve body support member 23. In the circular cavity of the casing 20, a flow path 24 communicating with the outlet flow path of the atomizing device M is formed, and a valve seat 21 is provided on the flow path 24 side by the valve body support member 23 by the circular cavity. Of the valve body support member 23.
, A rod-shaped valve body 22 is threadably engaged with the valve body 22 so as to advance and retreat therethrough. And, in the valve body support member 23,
A through hole 25 is formed in a direction substantially perpendicular to the flow path 24, and a fluid outlet hole 26 is formed in the casing 20 at a position corresponding to the through hole 25.

Therefore, when these are assembled in the state shown in the drawing and the valve body 22 is advanced and retracted, the valve body 22 and the valve seat 2 are moved.
The gap sp between the two can be finely adjusted, whereby the back pressure applied to the discharge side flow path of the atomization device M can be arbitrarily adjusted. However, the illustrated structure is not limited to an example of the back pressure adjusting mechanism, and any known back pressure adjusting mechanism other than the illustrated structure can be adopted.
It is also possible to connect the atomizing device M to the fluid outlet 26 side and adjust the back pressure while flowing the processing fluid in the direction of the flow path 24.

As described above, if the back pressure adjusting device is provided on the discharge side of the fluid to be treated of the atomizing device M, the back pressure is adjusted at this portion, so that the collision in the atomizing device M as described above. It is recommended as a preferred embodiment because the magnitude of the cavitation effect due to energy or pressure drop can be controlled, and the atomization performance of the atomizer M itself can be further finely adjusted as desired.

[0037]

Next, the present invention will be described more specifically with reference to examples, but the present invention is not limited by the following examples. In the following, “parts” and “%” mean “parts by weight” and “% by weight” unless otherwise specified.

The stirrer shown as a comparative example includes Japan
"AM-9" manufactured by Seiki Seisakusho Co., Ltd.
As shown in FIGS.
A configuration in which the fluid collide at a high speed at the intersection of the cross
[Manufactured by N Company] was used. Also, atomization used in the examples
Dividing block A arranged in the device_Two And concentrated block A _Three 
The size of each through hole, two-step recess, trapezoidal protrusion, etc.
9. In addition, particle size measurement of the obtained atomized product
And the evaluation method were as follows. Particle size measurement method: Laser analysis type particle size distribution measurement manufactured by Shimadzu Corporation
Measurement device SALD-200A Evaluation method: Evaluate based on the size of median diameter.

[Emulsification Experiment] (1) Fluid to be treated: soybean oil (manufactured by Kanto Kagaku Co., Ltd.) 10% soybean lecithin (manufactured by Kanto Kagaku Co., Ltd.) 0.5% pure water 89.5% ( 2) Pretreatment: Weigh a prescribed amount of soybean oil, add a prescribed amount of soybean lecithin, and dissolve soybean lecithin in soybean oil. The above is added to the weighed pure water, and pre-milking is performed for 1 minute at 5,000 rpm using a tabletop stirrer (“AM-9” manufactured by Nippon Seiki Co., Ltd.). Median diameter of the pre-emulsified product: 26.72 μm [Dispersion / crushing experiment] (1) Sample: zinc oxide (fine-particle zinc oxide manufactured by Hakusui Chemical Co., Ltd.) 30% Demol EP (made by Kao Corporation) 2% pure water 68% (2) Pretreatment: Demol EP is added and dissolved in a predetermined amount of pure water. Add zinc oxide to the above and pre-disperse at 15,000 rpm for 5 minutes. Median diameter of the preliminary dispersion: 0.69 μm

[0040]

[Table 1]

As is clear from the results of the above-mentioned emulsification experiments, the use of the atomization apparatus of the present invention provides a superior atomization effect as compared with the case where a conventional stirrer or a commercially available atomization apparatus is used. Can be confirmed.

[0042]

[Table 2]

As is clear from the results of the dispersion and pulverization experiments described above, the use of the atomizing device of the present invention makes it possible to obtain a uniform and excellent fine particle as compared with a conventional stirrer or a commercially available atomizing device. It can be confirmed that the conversion effect can be obtained.

[0044]

As described above, according to the present invention, the energy for atomization is applied to the fluid containing the substance to be atomized a plurality of times by collision, branching, merging and cavitation due to a rapid pressure drop. The effect can be provided by a short processing line, which can significantly enhance the atomization. In addition, the apparatus of the present invention has a relatively simple structure, is easy to design and manufacture, and may be short in terms of equipment. The apparatus for atomization is mainly composed of the diverting block and the concentrated block. Because of the abutted configuration, maintenance and replacement of the equipment can be easily performed.

[Brief description of the drawings]

FIG. 1 is an explanatory longitudinal sectional view showing one embodiment of an atomizing method and apparatus according to the present invention.

FIG. 2 is an enlarged cross-sectional view illustrating a atomized block group A adopted in the embodiment.

FIG. 3 is an explanatory diagram showing an atomization mechanism when the atomization block of FIG. 2 is used.

FIG. 4 is a partially cutaway sketch of the atomized block group shown in FIG. 2;

FIG. 5 is a schematic explanatory view illustrating an atomization system incorporating the atomization device of the present invention.

FIG. 6 is an explanatory view showing a basic structure of a known two-liquid collision type atomization device.

FIG. 7 is a view in the direction of arrows AA and BB in FIG. 6;

FIG. 8 is a cross-sectional explanatory view illustrating a back pressure adjusting device that can be provided when the present invention is implemented.

FIG. 9 is an explanatory diagram showing the dimensions of a group of atomized blocks used in the example.

[Explanation of symbols]

M atomizer A atomized blocks 1 casing 2 pressing member 3 pin 4 bags nut 5 the high-pressure pump 6 gland nut A atomization block A ₁ inlet side block A ₂ shunt block A ₃ concentration Block A ₄ egress block x, y , Z, v Through hole w Two-step recess d Trapezoidal protrusion M Atomizer R Annular groove S Annular flow path T Planar flow path 20 Casing 21 Valve seat 22 Rod-shaped valve element 23 Valve element support member sp Space

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Kazutoshi Mitake 1-7-14 Shodosawa, Itabashi-ku, Tokyo Stock inside Genus Inc. (72) Inventor Koichi Furutano 1-7-14, Shozuzawa, Itabashi-ku, Tokyo Stock Inside the company Genus

Claims (3)

[Claims] 1. A process target fluid in which a substance to be atomized is dispersed is introduced at a high speed from a flow channel inlet into a closed vessel having a flow channel inlet and a flow channel outlet, and the flow is branched into a plurality of flow channels. Then, by forming a high-speed flow in a direction to collect them again and causing collision, the material is atomized and discharged from the outlet of the flow path. After having been diffused, the flow direction is changed from a plurality of positions at the ends in the diffusion direction in the same direction as the feeding direction to diverge the flow, and the tip of each divergence collides against the wall surface, and these are inclined in the feeding direction. The atomization method is characterized in that the particles are caused to flow in the centripetal direction, collide with the wall surface at the leading end thereof, are further concentrated in the central direction, collide and merge at the central position, and then are discharged in the same direction as the feeding direction. 2. The atomization method according to claim 1, wherein a cavity is formed at an outlet of each of the branch streams, and the pressure of the fluid to be treated is rapidly reduced to promote the atomization of the substance. 3. A fluid to be treated, in which a substance to be atomized is dispersed, is introduced at a high speed from a flow channel inlet into a closed container having a flow channel inlet and a flow channel outlet, and the flow is branched into a plurality of flow channels. A device for forming a high-speed flow in a direction to collect the particles again and causing the particles to collide, thereby atomizing the substance and discharging the substance from the outlet of the flow path. A first block having a through-hole A, and a second block having one axial through-hole B substantially at the center and closely disposed concentrically with the first block; Between the two blocks, an annular groove continuous to the plurality of axial through holes A is formed, and an inclined annular flow path from the annular groove toward the one axial through hole B is formed. Atomizing device, characterized in that: