KR101290541B1 - Centrifugation type distribution apparatus - Google Patents

Abstract

[PROBLEMS] To provide a centrifugal dispersion device capable of suppressing the generation of lumps and improving the mixing ability of the dispersoid and the liquid dispersion medium.
[Solution] The ring-shaped groove 10 is formed on the inner surface of the front wall portion 2 of the casing 1, and the scraper 9 is formed on the front side of the rotor 5 facing the front wall portion 2. The tip portion 9T is disposed to be rotatable integrally with the rotor 5 in a state where the tip portion 9T enters into the ring-shaped groove 10, and the premix Fp of the casing 1 is rotated by the rotation of the rotary blades 6. The inlet port 11 suction-introduced inside is provided in the front wall portion 2 in a state of communicating with the ring-shaped groove 10, and the discharge port 12 for discharging the generated fluid F is formed in the wing chamber 8 As a centrifugal dispersing device provided in the outer circumferential wall portion 4 in a state of communicating with the circumferential wall), and a plurality of scrapers 9 are provided with different positions in the radial direction of the rotor 5 and provided with ring-shaped grooves 10. A plurality of concentric shapes are provided corresponding to the scrapers 9 provided at different positions in the radial direction of the rotor 5, respectively.

Description

Centrifugation type distribution apparatus

The present invention is a state in which a rotor provided with a rotary blade on a radially outer side in a casing having a cylindrical outer circumferential wall portion whose openings at both ends are closed by a front wall portion and a rear wall portion is capable of rotationally driving. The cylindrical stator, which is arranged concentrically and has a plurality of through holes arranged in the circumferential direction, is located in front of the front wall portion of the rotor and is located concentrically inside the rotary blade. A ring-shaped wing chamber is fixedly disposed, and the rotary blades are circulated between the stator and the outer circumferential wall portion of the casing, and a ring-shaped groove is formed on the inner surface of the front wall portion, and the front wall portion On the front side of the opposite rotor, a scraper is disposed so as to be integrally rotatable with the rotor in a state where the tip portion thereof enters into the ring-shaped groove, The front wall portion in a state in which an inlet for introducing a premixed mixture of the dispersoid and the liquid dispersion medium into the casing by suction of the rotary blade is in communication with the ring-shaped groove. And a discharge port for discharging the generated fluid generated by mixing the dispersoid and the liquid dispersion medium, the centrifugal dispersion device provided in the outer peripheral wall portion in communication with the wing chamber.

Such a centrifugal dispersing device (hereinafter sometimes referred to simply as a dispersing device) sucks and introduces a premix of the dispersoid and the liquid dispersion medium from the inlet through the suction action by the rotation of the rotary blade, And the liquid dispersion medium are further mixed, and the resulting fluid generated by the mixing is discharged from the discharge port by the centrifugal force generated by the rotation of the rotary blades.

That is, the scraper is circulated integrally with the rotor in a state where the tip thereof is introduced into the ring-shaped groove, and the premixed material introduced into the ring-shaped groove from the inlet is scraped by the tip of the scraper to shear the premixed material. It is configured to mix the dispersoid and the liquid dispersion medium by disturbing the finely divided and ground and disturbing the flow of the premix.

Hereinafter, among the side surfaces at the tip of the scraper, the side facing the radially outward side of the rotor is referred to as the outward side surface, and the side facing the radially inward side of the rotor is referred to as the inward side surface, and the inner surface of the ring-shaped groove Among them, the inner surface located on the radially outward side of the rotor and directed toward the radially inward side is referred to as the inwardly inner surface, and the inner surface located on the radially inward side of the rotor toward the radially outward side is referred to as the outwardly inner surface, The shear action of the premix will be explained.

That is, in the state where the front end of the scraper enters the ring-shaped groove, the outward side surface of the front end of the scraper and the inward inner surface of the ring-shaped groove face each other, and the inward side surface of the front end of the scraper and the outward inner surface of the ring-shaped groove face each other. do.

Then, when the scraper is circulated in the state where the distal end enters into the ring groove, the premixture introduced from the inlet to the ring groove is mainly between the outward side of the distal end of the scraper and the inward inner surface of the ring groove. The shear action occurs in two regions between the inward side of the tip of the scraper and the outward inner surface of the ring-shaped groove. By the shear action, the premix is finely decomposed and pulverized, the shear action acts to disturb the flow of the premix, and the dispersoid and the liquid dispersion medium are mixed.

In addition, for example, a powder is mentioned as a dispersoid, a solvent is mentioned as a liquid dispersion medium, for example, As a production fluid, a paste is produced by melt | dissolving powder in a solvent, for example.

The powder is not specifically excluded as long as it is powder, but is, for example, chemical raw materials such as battery electrode materials, food raw materials such as skim milk powder or wheat flour, pharmaceutical raw materials, and the like, and powders such as granules, powders and fine grains ( Including mixtures of these powders). The powder includes a powder. In addition, as a solvent, if it is a solvent which can melt | dissolve powder satisfactorily, it will not specifically exclude, For example, water can be illustrated.

In such a dispersion apparatus, conventionally, a scraper is provided in the state which exists in one place in the radial direction of a rotor, and a ring-shaped groove corresponds to the scraper which exists in one place in the radial direction of a rotor, and 1 A set was provided (for example, refer patent document 1).

In addition, in the said patent document 1, several scrapers were arrange | positioned and arranged in a line in the circumferential direction in the state located in the same position in the radial direction of a rotor.

Japanese Patent Publication No. 2007-216172

However, in the conventional dispersing device, since the scraper is present in only one position in the rotor radial direction, the shearing force is applied only to two different regions in the radial direction of the rotor to the premixture introduced from the inlet. In addition, disturbances cannot sufficiently occur in the flow of the premix. In particular, the higher the proportion of the dispersoid (e.g. powder), the lower the fluidity, and the more easily the mass agglomerates (so-called lumps) in which the dispersoid is agglomerated, and the larger the agglomerated mass is likely to be. The dispersion medium was not sufficiently mixed, and improvement was desired.

In other words, there is a use of a production fluid produced by mixing a dispersant and a liquid dispersion medium, for example, to form a film or a member having a dispersant as a main component in an object. In this application, for example, a process such as heating after applying the product fluid to an object is carried out to evaporate the liquid dispersion medium to form a film or a member having a dispersant as a main component. In such a use, it is desired to reduce the ratio of the liquid dispersion medium in the premix to improve the treatment efficiency.

However, in order to increase the efficiency of the treatment, if the ratio of the liquid dispersion medium in the premix is lowered, the fluidity of the premix is lowered. Therefore, in the conventional dispersing device, the problem of agglomeration is particularly remarkable. Could not mix sufficiently.

This invention is made | formed in view of such a situation, The objective is to provide the centrifugal dispersion apparatus which can suppress generation | occurrence | production of agglomeration and can improve the mixing ability of a dispersoid and a liquid dispersion medium.

Centrifugal dispersion device according to the present invention for achieving the above object,

In the casing having a cylindrical outer circumferential wall portion whose openings at both ends are closed by the front wall portion and the rear wall portion, a rotor having a rotary blade on the radially outer side is disposed concentrically in a state capable of rotationally driving, A cylindrical stator provided with its circumferential direction arranged in a circumferential direction is positioned on the front side of the front wall portion of the rotor and located inside the rotary blade and fixedly arranged concentrically, and an outer circumferential wall portion of the stator and the casing. A ring-shaped wing chamber in which the rotary blades rotate around is formed therebetween, a ring-shaped groove is formed on the inner surface of the front wall portion, and a scraper is provided at the front side of the rotor facing the front wall portion. Is disposed so as to be integrally rotatable with the rotor in a state of entering into the ring-shaped groove, and the dispersoid and the liquid dispersion medium are premixed. Inlet for introducing the pre-mixed suction into the inside of the casing by the rotation of the rotary blade is provided in the front wall portion in communication with the ring-shaped groove, produced by mixing the dispersoid and the liquid dispersion medium A centrifugal dispersion device provided in the outer circumferential wall portion in a state in which a discharge port for discharging a fluid communicates with the wing chamber,

The characteristic structure is provided with the said scraper in multiple numbers, changing the position in the radial direction of the said rotor,

The ring-shaped grooves are provided in plural concentric shapes corresponding to the scrapers provided at different positions in the radial direction of the rotor, respectively.

According to the above feature, since a plurality of scrapers respectively positioned at different positions in the radial direction of the rotor are integrally circumscribed with the rotor in the state where the tip portion enters the corresponding ring-shaped groove, they are introduced from the inlet port. With respect to the premix, the shear force can be exerted by two regions at each of a plurality of different positions (hereinafter, referred to as scraper passing positions) through which the scraper in the rotor radial direction passes, and is introduced from the inlet. With respect to the premixed material, it is possible to increase the number of places where the shear force is applied in the radial direction of the rotor.

Moreover, also in the area | region between which a scraper passes in the radial direction of a rotor, the premixes scraped by the tip part of a scraper collide with each other and mix.

As a result, the premix can be finely disintegrated and pulverized, and sufficient disturbance can be generated in the flow of the premix, so that the mass is extremely small and the mass is fine even if a mass is generated. The size can be reduced by decomposition and grinding.

In addition, when installing a scraper in the state which exists in one place in the radial direction of a rotor like conventionally, the width | variety in the direction along the radial direction of the rotor in the said scraper is a rotor like this characteristic structure. It is assumed that the width is equal to the total width of the plurality of scrapers provided at different positions in the radial direction.

However, even if the width of the scraper is widened in this way, the shearing force can be applied to the premixture introduced from the inlet, as it remains the two regions in the radial direction of the rotor, so that the premix is finely divided and ground. It is not possible to improve the action of causing disturbance in the flow of the premix.

Therefore, it is possible to provide a centrifugal dispersion device capable of suppressing the generation of lumps and improving the mixing ability (dispersibility) of the dispersoid and the liquid dispersion medium.

According to another feature of the centrifugal dispersing apparatus according to the present invention, a plurality of scrapers are arranged in a circumferential direction at each of different positions in the radial direction of the rotor, and a plurality of concentric scraper rows are formed. It is in a formed point.

According to the above feature, in each of the plurality of scraper passing positions in the radial direction of the rotor, the number of scrapers arranged in the circumferential direction with respect to the premixture introduced from the inlet during the rotation of the rotor is the same. Since the recovery shear force can be exerted, the premixes can be further disintegrated and pulverized further, the flow of the premixes can be further disturbed, and generation of lumps can be further reduced.

Therefore, generation | occurrence | production of a lump can be further suppressed and the mixing ability of a dispersoid and a liquid dispersion medium can be improved further.

According to still another feature of the centrifugal dispersion device according to the present invention, a plurality of scrapers constituting the scraper rows described above are arranged at equal intervals in the circumferential direction and in a circumferential direction between the scraper rows adjacent to each other. This is in that it is arrange | positioned so that it may differ.

According to the above feature, at the scraper passing positions adjacent to each other in the radial direction of the rotor, the scrapers alternately pass and exert shear forces on the premixes introduced from the inlet, so that the scrapers constituting each scraper row While reducing the number of, it is possible to exert more recovery shear force on the premix introduced from the inlet during one revolution of the rotor.

That is, since the pressure pulsation can be caused at a high frequency with respect to the premix in the introduction chamber, it is possible to further improve the action of finely decomposing and grinding the premix, and the effect of causing disturbance in the flow of the premix, Can be further suppressed.

Therefore, the generation of lumps can be further suppressed, and the mixing ability of the dispersoid and the liquid dispersion medium can be further improved.

According to still another feature of the centrifugal dispersing apparatus according to the present invention, each scraper is formed in a rod shape, and as viewed from the radial direction of the rotor, the front end portion of the rod-shaped scraper is closer to the front wall side. And the base end of the rod-shaped scraper rotates integrally with the rotor in an inclined position located in the radially inner side of the rotor as viewed from the axial direction of the rotor as the tip side of the rod-shaped scraper. Fixed to

The rotor is rotated in a direction in which the tip of the scraper is forward when viewed in the axial direction thereof.

According to the above feature, the portion of the scraper located outside the ring-shaped groove is inclined to face radially outward with respect to the radial direction of the rotor as viewed in the axial direction of the rotor. The premixed scraped from the ring-shaped groove by the tip of the scraper is guided to flow outward in the radial direction of the rotor by the portion of the scraper located outside the ring-shaped groove.

That is, the pre-mixture introduced into the ring-shaped groove from the inlet is scraped off by a plurality of scrapers that circulate a plurality of different positions in the radial direction of the rotor, and the scraped pre-mixture is the diameter of the rotor. Since it is guided to flow outward, the premixture introduced into the casing from the inlet can be mixed well while suppressing retention, and can be discharged from the outlet as a production fluid.

Therefore, it is possible to efficiently produce the product fluid in which the dispersoid and the liquid dispersion medium are well mixed.

Another characteristic structure of the centrifugal dispersing apparatus which concerns on this invention is that the scraper which comprises the adjacent scraper row is the part of the base end side of the scraper of the inner row, when seen from the axial direction of the said rotor, and the scraper In the form which overlaps the part of the front end side of the scraper of the outer side row | line | column which overlaps, it is arrange | positioned in the circumferential direction.

According to the above feature, the premixed scraped by the scraper of the inner scraper row among the adjacent scraper rows and moved and guided to the radially outward side of the rotor includes the proximal end of the scraper of the inner scraper row and the tip of the scraper of the outer scraper row. Since it is press-fitted in between and subjected to a compression action, it becomes further decomposition-pulverization, and can promote the decomposition-pulverization and mixing of a premix.

Therefore, the mixing ability of the dispersoid and the liquid dispersion medium can be further improved.

According to still another feature of the centrifugal dispersion device according to the present invention, a return port for returning a part of the production fluid discharged from the discharge port into the casing through a circulation passage is provided in the front wall portion. ,

A partition for partitioning the inner circumferential side of the stator into the introduction chamber on the front wall side and the return chamber on the rotor side is provided on the front side of the rotor while being integrally rotated with the rotor, and the front wall side of the partition body. The scraper is installed in

The introduction chamber and the return chamber are configured to communicate with the wing chamber through a plurality of transmission holes of the stator,

The introduction port communicates with the introduction chamber, and the return port communicates with the recovery chamber.

According to the above characteristic configuration, the premix is introduced into the introduction chamber from the introduction port, mixed under the shear action of the scraper in the introduction chamber, and mixed under the shear action when passing through the perforation hole, and thus the wing chamber. Flows into. On the other hand, a part of the production fluid discharged from the discharge port is introduced into the return chamber from the return port through the circulation path, further mixed in the return chamber, and mixed under the shear action when passing through the perforation hole, Inflow.

Then, the production fluid introduced into the wing chamber through the permeation hole from the introduction chamber and the production fluid introduced into the wing chamber from the return chamber through the permeation hole are mixed by the rotary blades which rotate around the wing chamber, and are discharged from the discharge port. do.

That is, a part of the production fluid discharged from the discharge port is returned to the return chamber and further mixed in the return chamber, and then the premix is mixed in the introduction chamber and mixed with the generated fluid generated and discharged from the discharge port. Since the premix is mixed, generation of lumps can be suppressed as much as possible, and the dispersoid and the liquid dispersion medium can be properly mixed.

Therefore, it is possible to produce a product fluid in which the dispersoid and the liquid dispersion medium are properly mixed.

1 is a schematic configuration diagram of a powder dissolution system having a centrifugal dispersion device.
Fig. 2 is a longitudinal sectional view showing a main part of the metering device.
FIG. 3 is a sectional view seen from the direction III-III of FIG. 2.
4 is a longitudinal side view of the centrifugal dispersion device.
FIG. 5 is a sectional view seen from the VV direction in FIG. 4. FIG.
FIG. 6 is a sectional view seen from the VI-VI direction in FIG. 4. FIG.
Fig. 7 is an exploded perspective view showing the assembling structure of the front wall portion, the stator and the partition body of the casing.
FIG. 8 is a view for explaining the arrangement of the scraper on the partition body. FIG.
9 is a perspective view of the scraper.
FIG. 10 is a diagram showing a simulation result of the flow state of the premix in the introduction chamber when the scrapers are arranged in a two-row two-phase arrangement. FIG.
FIG. 11 is a diagram showing a simulation result of the flow state of the premix in the introduction chamber when the scrapers are arranged in the form of a two-row copper phase arrangement. FIG.
It is a figure which shows the simulation result of the fluid state of the premix in the introduction chamber when a scraper is arrange | positioned in 1 row arrangement | positioning form.
FIG. 13: is a figure which shows the result of simulating the pressure distribution of the introduction port vicinity in an introduction chamber.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described based on drawing.

Fig. 1 shows a powder dissolution system provided with a centrifugal dispersion device (hereinafter, simply referred to as a dispersion device) Y according to the present invention.

This powder dissolution system uses powder (P) as a dispersoid, dissolves powder (P) in solvent (R) using liquid (R) as a liquid dispersion medium, and produces paste (F) as a production fluid. will be.

In this embodiment, CMC (carboxymethyl cellulose) was used as powder P, for example, and water was used as solvent R. As shown in FIG.

As shown in Fig. 1, the powder dissolution system includes a quantitative supply device X for quantitatively supplying powder P, a solvent supply device 50 for quantitatively supplying solvent R, and a quantitative supply device X. Dispersing apparatus (Y) for sucking and dissolving the powder (P) quantitatively supplied from the solvent and the solvent (R) quantitatively supplied from the solvent supply device (50), and the paste (F) discharged from the dispersing device (Y). And a separator 70 for separating solvent R (hereinafter, undissolved paste Fr) containing powder P which is not completely dissolved.

As shown in FIG. 1, the quantitative supply device X includes a hopper 31 for discharging the powder P received from the upper opening 31 a from the lower opening 31 b, and the powder P in the hopper 31. Lower opening by suction of the stirring mechanism 32 to stir) and the dispersing device Y connected to the downstream side of the lower opening 31b while the upper opening 31a of the hopper 31 is open to the atmosphere. And a volumetric metering supply mechanism 40 for quantitatively supplying the powder P discharged from the lower opening 31b to the dispersing apparatus Y by the negative pressure suction force acting on (31b). have.

The hopper 31 is comprised in the reverse cone shape by which the diameter decreases as it goes from upper part to the lower part, and the center axis | shaft A1 is arrange | positioned in the attitude | position along a perpendicular direction. The cross-sectional shape (viewed from the upper surface) of each of the upper opening part 31a and the lower opening part 31b of the hopper 31 becomes circular shape centering on the center axis A1, and is further connected to the hopper 31. The inclination angle of the inverted conical inner wall surface is approximately 60 degrees with respect to the horizontal plane.

The stirring mechanism 32 is arrange | positioned in the hopper 31, The stirring blade 32A which stirs the powder P in the hopper 31, and the said stirring blade 32A are the central axis A1 of the hopper 31. Wing member motor (M1) for rotating around, a mounting member (32B) for supporting the wing driver motor (M1) located above the upper opening (31a) of the hopper 31, and the wing drive motor (M1) And a rolling member 32C for transmitting the rotational driving force to the stirring blade 32A.

The stirring blade 32A is formed by bending the rod-shaped member into a substantially V-shape, and has one side edge portion along the inner wall surface of the hopper 31, and an end portion of the other edge portion is hopper ( It is arrange | positioned so that it may pivot coaxially with the central axis A1 of 31). Moreover, the said stirring blade 32A is formed so that the cross-sectional shape may be formed in triangle, and the surface which forms one side of a triangle becomes substantially parallel with the inner wall surface of the hopper 31. As shown in FIG. Thereby, the stirring blade 32A is arrange | positioned rotatably around the central axis A1 along the inner wall surface of the hopper 31. As shown in FIG.

As shown in FIGS. 1-3, the volumetric metering-supply mechanism 40 supplies the powder P supplied from the lower opening 31b of the hopper 31 to the dispersing apparatus Y of a downstream side. It is a device that supplies a fixed amount.

Specifically, the inlet part 41 connected to the lower opening part 31b of the hopper 31, the casing 43 provided with the supply port 43a and the discharge port 43b, and the casing 43 are rotatably rotatable. It is comprised with the metering body 44 arrange | positioned and the metering body drive motor M2 which rotates the metering body 44 to rotate.

The introduction part 41 is formed in the tubular shape which communicates the lower opening part 31b of the hopper 31 and the supply port 43a formed in the upper part of the casing 43, and the supply port of the casing 43 is provided in the lowest end ( A slit-shaped opening of the same shape as 43a) is formed. The introduction portion 41 is formed in a tapered shape that becomes thinner toward the supply port 43a 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, and for example, the dimension in the longitudinal direction of the slit-shaped opening is 20 to 20. Set the width in the width direction to about 1 to 5 mm.

The casing 43 is formed in a substantially rectangular parallelepiped shape, and is connected to the hopper 31 through the introduction part 41 in a posture inclined 45 degrees with respect to the horizontal direction.

As shown in FIG.2 and FIG.3, the slit-shaped supply port 43a corresponding to the slit-shaped opening of the introduction part 41 is provided in the upper surface of the casing 43, and the lower opening part of the hopper 31 ( It is comprised so that the powder P from 31b) may be supplied in the casing 43. On the lower side of the lower side (right side in FIG. 2) of the casing 43 arranged in an inclined shape, the powder P quantitatively supplied to the metering rotating body 44 is provided on the downstream side through the expansion chamber 47. A discharge port 43b for discharging the dispersing device Y is provided, and a powder discharge pipe 45 is connected to the discharge port 43b. The expansion chamber 47 is installed at a position in the casing 43 in which the powder P supplied from the supply port 43a to the powder accommodating chamber 44b of the metering rotating body 44 is supplied quantitatively, By the negative pressure suction force acting from 43b), it 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 dispersing apparatus 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 metering body 44 rotates, the state of each powder chamber 44b changes to a negative pressure state (for example, about -0.06 MPa) and a higher pressure than the negative pressure state.

The metering rotating body 44 includes a disk member 49 having a plurality of (eg, eight) plate-shaped partition walls 44a disposed on the disk member 49 disposed on the drive shaft 48 of the metering rotating drive motor M2. Is formed radially at equal intervals except for the center of the center, and is configured to form a plurality of compartments (e.g., eight chambers) in the circumferential direction at equal intervals. The powder chamber 44b is configured to be opened in the outer circumferential surface and the central portion of the metering body 44. In the center of the metering rotating body 44, the opening closing member 42 is arranged in a circumferential direction and fixedly arranged, and the opening at the center side of each powder storage chamber 44b can be closed or opened according to its rotational phase. It is composed. In addition, the supply amount of the powder P can be adjusted by changing the rotation speed of the metering body 44 by the metering body drive motor M2 which rotationally drives the metering body 44.

In accordance with the rotation of the metering body 44, each of the powder containing chambers 44b is in the expansion chamber open state in which the expansion chamber 47 is opened, and the first chamber does not communicate with the expansion chamber 47 and the supply port 43a. It is comprised so that the state may change repeatedly in order of the sealed state, the supply port open state opened to the supply port 43a, and the 2nd sealed state which is not in communication with the supply port 43a and the expansion chamber 47. However, the casing 43 is formed so that the opening on the outer circumferential surface side of the metering rotating body 44 is closed in the first sealed state and the second sealed state, and the opening on the central side of the metering rotating body 44 is the first. The opening closing member 42 is fixed to the casing 43 so as to be closed in the closed state, the supply port open state, and the second closed state.

Therefore, in the metering feeder X, the powder P stored in the hopper 31 is supplied to the metering feeder 40 while being stirred by the stirring blade 32A, and by the metering feeder 40, The powder P is quantitatively supplied to the dispersing device Y from the discharge port 43b through the powder discharge pipe 45.

Specifically, the pressure of the expansion chamber 47 in the casing 43 is negative due to the negative pressure suction force from the dispersing device Y connected to the downstream side of the discharge port 43b of the metering supply mechanism 40. State (for example, about -0.06 MPa). On the other hand, since the upper opening part 31a of the hopper 31 is open | released to the atmosphere, the inside of the hopper 31 will be in the state of atmospheric pressure. The inner part of the inlet part 41 and the vicinity of the lower opening part 31b which communicate through the clearance gap between the expansion chamber 47 and the metering body 44 become a pressure state between the said negative pressure state and 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 shear by the stirring blade 32A is sheared. The powder P in the hopper 31 is disintegrated and pulverized by the action, while the weighing rotor 44 is rotated by the metering rotor driving motor M2, so that the empty powder containing chamber 44b is sequentially supplied. It is in a state of communicating with the sphere 43a. Then, the powder P in the hopper 31 flows down the introduction portion 41 from the lower opening 31b, and in turn, the powder containing chamber of the metering body 44 which is in a state of being communicated with the supply port 43a. A predetermined amount is accommodated in 44b, and the powder P accommodated in the powder accommodating chamber 44b flows down into the expansion chamber 47 and is discharged from the discharge port 43b. Therefore, the quantitative supply device X can supply the powder P to the mixing inlet 11 of the dispersing device Y continuously by a predetermined amount through the powder discharge pipe 45.

As shown in FIG. 1, in the powder discharge pipe 45, the shutter valve 46 which can stop supply of the powder P to the mixing introduction port 11 of the dispersing apparatus Y is arrange | positioned.

As shown in FIG. 1, the solvent supply device 50 continuously supplies the solvent R from the solvent source 51 to the mixing inlet 11 of the dispersion device Y at a set flow rate. It is configured to.

Specifically, the solvent supply device 50 includes a solvent source 51 for delivering the solvent R, a solvent supply pipe 52 for sending the solvent R from the solvent source 51, and a solvent source 51. Flow rate adjustment valve (not shown) which adjusts the flow rate of the solvent R sent to the solvent supply pipe 52 to the set flow rate, and the solvent R adjusted to the set flow rate from the quantitative supply mechanism 40. The mixing mechanism 60 which mixes with the powder P supplied and supplies it to the mixing introduction port 11 is comprised.

As shown in FIG. 4, the mixing mechanism 60 is comprised with the mixing member 61 which connects the powder discharge pipe 45 and the solvent supply pipe 52 to the mixing inlet port 11. As shown in FIG.

The mixing member 61 has a smaller diameter than the cylindrical mixing inlet 11, and forms a ring-shaped slit 63 between the mixing inlet 11 and the mixing inlet ( A ring-shaped flow path 64 is formed at the outer circumference of the mixing introduction port 11 in a state of communicating with the tubular portion 62 disposed in the inserted state 11 and the ring-shaped slit 63 over the entire circumference. It is comprised by the ring-shaped flow path formation part 65 which is mentioned.

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 tangentially applies the solvent R to the ring-shaped flow path 64. Connected to supply.

The powder discharge pipe 45, the tubular portion 62 of the mixing member 61, and the mixing inlet port 11 are inclined posture (the angle with respect to the horizontal plane is 45 degrees) in which the axis A2 is supplied downward. Are inclined to

That is, the powder P discharged to the powder discharge pipe 45 from the discharge port 43b of the metering supply mechanism 40 is mixed along the shaft center A2 through the cylindrical portion 62 of the mixing member 61. It is introduced at the inlet 11. On the other hand, since the solvent R is supplied to the ring-shaped flow path 64 from the tangential direction, the hollow cylinder which is not broken through the ring-shaped slit 63 formed in the inner circumferential side of the ring-shaped flow path 64 is not broken. It is supplied to the mixing introduction port 11 in the state of vortices of the bed.

Therefore, by the cylindrical mixing inlet 11, the powder P and the solvent R are equally premixed, and the premix Fp is sucked into the dispersing apparatus Y.

Based on FIGS. 4-9, the dispersing apparatus Y is demonstrated.

4 is a longitudinal side view of the dispersing device Y, FIG. 5 is a view seen from the V-V arrow of FIG. 4, and FIG. 6 is a view seen from the VI-VI arrow of FIG. 4. FIG. 7: is an exploded perspective view which shows the assembly structure of the front wall part 2 of the casing 1, the stator 7, and the partition body 15. As shown in FIG. FIG. 8: is a figure explaining the arrangement structure of the scraper 9 in the partition body 15, (a) is a front view, (b) is a side view, and (c) is a back view. 9 is a perspective view of the scraper 9.

As shown in FIG. 4, the dispersing device Y includes a casing 1 having a cylindrical outer circumferential wall portion 4 whose openings at both ends are closed by the front wall portion 2 and the rear wall portion 3, and the casing 1. Rotor 5 installed concentrically and rotatably in the interior of the cylinder), cylindrical stator 7 fixedly arranged concentrically inside the casing 1, and pump driving for rotating the rotor 5 in rotation. The motor M3 etc. are comprised.

As also shown in FIG. 5, in the radially outer side of the rotor 5, the some rotor blades 6 protrude toward the front side which is the front wall part 2 side, and are arranged at equal intervals in the circumferential direction. 5) and integrally provided.

The cylindrical stator 7 includes a plurality of transmission holes 7a and 7b arranged in the circumferential direction, respectively, and the stator 7 is the front side of the rotor 5 and the diameter of the rotary blade 6. A ring-shaped wing chamber 8 is formed between the stator 7 and the outer circumferential wall portion 4 of the casing 1 so as to be rotated in the direction and fixedly disposed. do.

As shown in FIG. 4, FIG. 6, and FIG. 7, the ring groove 10 is formed in the inner surface of the front wall part 2 of the casing 1, and the rotor 5 which opposes the front wall part 2 is shown. On the front side of the scraper 9, the scraper 9 is arranged so as to be integrally rotatable with the rotor 5 in a state in which the tip portion 9T enters into the ring-shaped groove 10.

Then, as shown in FIGS. 4 to 7, the premix Fp in which the powder P and the solvent R are premixed is suctioned into the casing 1 by rotation of the rotary blade 6. The mixing inlet 11 (corresponding to the inlet) is provided in the front wall portion 2 in a state of communicating with the ring-shaped groove 10.

4 and 5, a cylindrical discharge port 12 for discharging the paste F as a production fluid generated by mixing the powder P and the solvent R is provided in the wing chamber 8. It is provided in the outer peripheral wall part 4 in the state which communicates.

As shown in FIG. 1 and FIG. 4, in this embodiment, the paste F (corresponding to the production fluid) discharged from the discharge port 12 is supplied to the separation device 70 through the discharge path 18. The return port 17 which returns the undissolved paste Fr (corresponding to a part of the production fluid) separated by the separating device 70 into the casing 1 through the circulation passage 16 is the casing 1. It is installed in the front wall part 2 of the.

In addition, as shown in FIGS. 4 to 7, a partition body partitioning the inner circumferential side of the stator 7 into the introduction chamber 13 on the front wall portion 2 side and the return chamber 14 on the rotor 5 side ( 15 is provided on the front side of the rotor 5 in a state of integrally rotating with the rotor 5, and a scraper 9 is provided on the front wall portion 2 side of the partition body 15.

And as shown in FIG. 4, the introduction chamber 13 and the return chamber 14 are comprised so that it may communicate with the wing chamber 8 through the some permeation hole 7a, 7b of the stator 7, and mixing The inlet port 11 communicates with the inlet chamber 13, and the return port 17 is configured to communicate with the return chamber 14.

Specifically, the introduction chamber 13 and the wing chamber 8 are a plurality of introduction chamber side perforation holes 7a arranged at equal intervals in the circumferential direction on a portion of the stator 7 that faces the introduction chamber 13. ), The return chamber 14 and the wing chamber 8 are a plurality of return chamber side through-holes arranged at equal intervals in the circumferential direction to a portion of the stator 7 that faces the return chamber 14. 7b).

And in this invention, as shown in FIGS. 4-8, the scraper 9 is provided in multiple numbers in the state which changed the position in the radial direction of the rotor 5, and the ring-shaped groove 10 is provided, Corresponding to the scrapers 9 provided at different positions in the radial direction of the rotor 5, respectively, two or more (two sets in FIG. 4) are provided concentrically.

In this embodiment, in each of the different positions in the radial direction of the rotor 5, a plurality of scrapers 9 are arranged in the circumferential direction, and a plurality of concentric scraper rows L are formed.

Moreover, the some scraper 9 which comprises each scraper row L is arrange | positioned so that the liner phase in the circumferential direction may be different in the circumferential direction at equal intervals, and the adjacent scraper rows L may mutually differ. .

Specifically, two rows of scraper rows L are formed concentrically, and in each scraper row L, four scrapers 9 are arranged in the circumferential direction in a lined phase spaced 90 degrees from the center angle. . In addition, the alignment phase of the four scrapers 9 in the inner scraper row L and the alignment phase of the four scrapers 9 in the outer scraper row L are shifted.

In addition, in the following description and drawing, in order to show the position inside and outside the two rows of scraper rows L, the subscript "i" which shows an inner side is attached | subjected to the "L" which shows the scraper row, and is referred to as "Li". The inner scraper row is shown, the subscript "o" indicating the outer side is attached, and the outer scraper row is shown as "Lo".

Each part of the dispersion apparatus Y is demonstrated.

As shown in FIG. 4, the rotor 5 is comprised in the shape which the front surface extends generally in the shape of a truncated cone, and in the state which the some rotary blade 6 protrudes to the outer peripheral side forward. Installed at equal intervals.

The drive shaft of the pump drive motor M3 inserted through the rear wall portion 3 into the casing 1 while the rotor 5 is located concentrically with the casing 1 in the casing 1 ( 19) is rotated by the pump drive motor (M3).

As shown to FIG. 4, FIG. 7 and FIG. 8, the partition body 15 is comprised in the funnel shape substantially having an outer diameter slightly smaller than the inner diameter of the stator 7 mentioned later. Specifically, the funnel-shaped partition body 15 is equipped with a funnel-shaped portion 15b opened at a cylindrical sliding portion 15a having a top portion protruding in a cylindrical shape at the center thereof, and having a funnel shape. The outer peripheral portion of the portion 15b is configured to have a ring-like flat plate portion 15c in which both the front surface and the rear surface are orthogonal to the axis A3 of the casing 1.

4 and 5, the partition body 15 is in a posture in which the cylindrical sliding portion 15a at the top portion faces the front wall portion 2 side of the casing 1, and so on in the circumferential direction. It is attached to the front surface of the rotor 5 via the space holding member 20 arrange | positioned at the space | interval plural places (four places in this embodiment).

As shown to FIG. 5 and FIG. 8 (c), when attaching the partition body 15 to the rotor 5 via the space | interval holding member 20 in each of several places, the stirring blade 21 is a casing (1). Is integrally assembled to the partition body 15 in a posture facing the rear wall portion 3 side of the head), and when the rotor 5 is driven to rotate, four stirring blades 21 are integrally formed with the rotor 5. It is configured to rotate.

As shown in FIG. 4 and FIG. 7, in this embodiment, the cylindrical return opening 17 is provided in the center of the front wall part 2 of the casing 1 concentrically with the casing 1. .

As shown in FIGS. 4-7, the mixing introduction opening 11 has the opening part opened in the casing 1 inside a part of the circumferential direction in two sets of concentric ring-shaped grooves 10 inside. It is provided in the front wall part 2 so that it may be located in the transverse side of the opening part of the return opening 17 with respect to the inside of the casing 1 in the state included in the inside. In addition, the mixing inlet 11 has a horizontal direction in which the axial center A2 is parallel to the axial center A3 of the casing 1 and is orthogonal to the axial center A3 of the casing 1 in a plan view. As seen from the above, as the shaft center A2 is closer to the front wall portion 2 of the casing, the downward inclination posture closer to the shaft center A3 of the casing 1 is applied to the front wall portion 2 of the casing 1. It is installed. Incidentally, the downward angle of inclination of the mixing inlet 11 with respect to the horizontal direction is about 45 degrees as described above.

As shown in FIG. 4 and FIG. 7, the stator 7 is mounted on the inner surface (surface facing the rotor 5) of the front wall portion 2 of the casing 1, and the front wall portion of the casing 1 ( 2) and the stator 7 are fixed to unite.

5, the discharge port 12 is provided in the cylindrical outer peripheral wall part 4 so that it may extend in the tangential direction of the outer peripheral wall part 4. As shown in FIG.

As shown in FIGS. 6-9, in this embodiment, each scraper 9 is formed in rod shape, and when it sees from the radial direction of the rotor 5, the front wall is so that it is the front end side of the said rod-shaped scraper 9. The rod-shaped inclined position located at the side of the rotor 2 and located at the radially inner side of the rotor 5 as the tip side of the rod-shaped scraper 9 is viewed from the axial direction of the rotor 5. The base end portion 9B of the upper scraper 9 is fixed to rotate integrally with the rotor 5, and the rotor 5 is in a direction in which the tip end of the scraper 9 faces forward when viewed from the axial direction thereof (Fig. 4). 6 to a direction indicated by an arrow in FIG. 6.

Based on FIG. 5-9, the scraper 9 is demonstrated.

The scraper 9 is fitted into the base end portion 9B fixed to the partition body 15, the intermediate portion 9M that is exposed to the introduction chamber 13, and the ring-shaped groove 10 (i.e., enters). It is comprised in the rod shape which provided the tip part 9T which turns into a state from the base end toward the tip in series.

As shown to FIG. 5, FIG. 7, FIG. 8 (b), and FIG. 9, the base end part 9B of the scraper 9 is comprised in substantially rectangular plate shape.

As shown in FIG. 5, FIG. 7, FIG. 8 (a) and (b), and FIG. 9, the middle part 9M of the scraper 9 is comprised in substantially triangular column shape whose cross-sectional shape becomes substantially triangular. It is. Then, the scraper 9 is provided in the inclined posture as described above, so that one side 9m facing the rotational direction forward of the rotor 5 in the three side surfaces of the triangular pillar-shaped middle portion 9M (hereinafter, (It may be referred to as an amplifier surface) is a forward-down shape inclined toward the front of the rotational direction of the rotor 5, and also to face radially outward with respect to the radial direction of the rotor 5 (hereinafter, It may be described as oblique outward).

That is, when the rod-shaped scraper 9 is installed in an inclined position as described above, the tip portion of the scraper 9 in which the intermediate portion 9M exposed to the introduction chamber 13 is fitted into the ring-shaped groove 10. The front-down shape which is located in the radially outer side of the rotor 5 rather than 9T, and the diverging surface 9m toward the rotation direction front of the middle part 9M is inclined toward the front of the rotor 5 in the rotation direction. Moreover, it inclines inclined outward with respect to the radial direction of the rotor 5. As a result, the premixed material Fp scraped from the ring-shaped groove 10 by the tip end portion 9T of the scraper 9 is introduced into the introduction chamber by the diverging surface 9m of the middle portion 9M of the scraper 9. It is guided to flow toward the radially outward side of the rotor 5 in 13.

As shown in FIGS. 6, 7, 8 (a) and (b), and FIG. 9, the tip portion 9T of the scraper 9 has a substantially rectangular pillar shape in which the cross-sectional shape is substantially rectangular, and the rotor As seen from the axial direction of (5), the outward side surface 9o facing the radially outward side of the rotor 5 among the four side surfaces faces the radially inward side in the inner surface of the ring-shaped groove 10. And an inward side surface 9i facing the radially inward side of the rotor 5 in the four side faces along an outwardly inward surface facing the radially outward side in the inner surface of the ring-shaped groove 10. It is composed of shapes.

Moreover, the scraper surface 9f which faces the rotation direction forward of the rotor 5 among the four side surfaces of the front-end | tip part 9T of a square pillar shape is the front downward shape inclined toward the rotation direction front of the rotor 5, and And the radial direction outward side with respect to the radial direction of the rotor 5 (henceforth it may be described as an inclined outward).

Thus, the premixed material Fp scraped out of the ring-shaped groove 10 by the tip end portion 9T of the scraper 9 has a rotor (9f) by the scraper surface 9f of the tip end portion 9T of the scraper 9. 5) is discharged into the introduction chamber 13 toward the radially outward side.

Moreover, the front end surface 9t of the front end part 9T of the scraper 9 is parallel with the bottom face of the ring-shaped groove 10 in the state in which the front end part 9T was inserted in the ring-shaped groove 10. It is configured to be.

The four scrapers 9 formed in the above-described shape are arranged in the circumferential direction at intervals of 90 degrees from the center angle with the inclined posture as described above, respectively, and the proximal ends 9B of the partition body 15 are respectively formed. It is fixed to the ring-shaped flat plate part 15c, and the inner scraper row Li is comprised, and the four scrapers 9 are inclined as mentioned above on the outer side of the inner scraper row Li. In the form of a column arranged in the circumferential direction at intervals of 90 degrees from the center angle, the base end portion 9B is fixed to the ring-shaped flat plate portion 15c of the partition body 15 so that the outer scraper row Lo is provided. Consists of.

In addition, the eight scrapers 9 are arranged in the circumferential direction by dividing the four scrapers 9 into the outer and inner scraper rows Lo and Li four by four, so that the base end 9B is fixed to the partition body 15. The phase in the circumferential direction of the inner side is shifted about 30 degrees from the center angle in the rotational direction of the rotor 5 with respect to the base end portion 9B of the inner row Li with respect to the base end portion 9B of the outer row Lo. The order of phases of the four scrapers 9 in the scraper row Li is shifted from the order of phases of the four scrapers 9 in the outer scraper row Lo.

As described above, the eight scrapers 9 are arranged in the circumferential direction by dividing the scraper rows Lo and Li on the outer and inner sides, respectively, so that the four scrapers 9 are arranged in the circumferential direction. As shown in FIG. 4, when the four scrapers 9 constituting the adjacent scraper rows Lo and Li are viewed from the axial direction of the rotor 5, the base end of the scraper 9 of the inner row Li is viewed. Part of the side (that is, part of the base end of 9B and intermediate part 9M) and the part of the front end side of the scraper 9 of the outer row Lo corresponding to the said scraper 9 (that is, 9T are arranged in the circumferential direction in such a manner as to overlap each other.

As shown in FIG. 4, as described above, the partition body 15 provided with two rows of scraper rows Lo and Li is spaced apart from the front surface of the rotor 5 by the spacing member 20. The rotor 5 mounted on the front surface of the rotor 5 in the state, and in which the partition body 15 is mounted, the cylindrical sliding portion 15a of the partition body 15 slides to the return opening 17. It is arrange | positioned in the casing 1 in the state rotatably fitted.

Then, the tapered shape returning chamber which becomes small diameter toward the front wall part 2 of the casing 1 between the extended front shape of the rotor 5 and the back surface of the partition body 15 ( 14 is formed, and the return port 17 is comprised so that it may communicate with the return chamber 14 through the cylindrical sliding part 15a of the partition body 15. As shown in FIG.

In addition, a ring-shaped introduction chamber 13 communicating with the mixing introduction port 11 is formed between the front wall portion 2 of the casing 1 and the front surface of the partition body 15.

Then, when the rotor 5 is driven to rotate, the partition body 15 rotates integrally with the rotor 5 while the cylindrical sliding portion 15a slides on the return opening 17, and the rotor ( 5) and the state in which the return port 17 communicates with the return chamber 14 via the cylindrical sliding part 15a of the partition body 15 is maintained even in the state which the partition body 15 rotates. .

The separation device 70 is configured to separate the dissolved liquid by specific gravity in the cylindrical container 71. As shown in FIG. 1, the discharge path 18 is discharged from the discharge port 12 of the dispersion device Y. From paste (F) supplied through, undissolved paste (Fr) containing powder (P) which is not completely dissolved, paste (F) in which powder (P) is almost completely dissolved in circulation passage (16). ) Are separated into discharge paths 22, respectively. The discharge path 18 and the circulation path 16 are connected to the lower part of the cylindrical container 71, respectively, and the discharge path 22 is the upper part of the cylindrical container 71 and the paste F (product) of the product. It is connected to the supply destination 80.

However, although not shown, the separating device 70 projects an inlet pipe to which the discharge passage 18 is connected to protrude inwardly from the bottom of the cylindrical container 71 and discharges the upper portion of the cylindrical container 71. A torsion plate having a discharge portion connected to the furnace 22 and a circulation portion connected to the circulation passage 16 at a lower portion thereof, and having a torsional plate for turning the flow of the dissolved liquid discharged from the introduction pipe at the upper end of the discharge pipe. It is arrange | positioned.

Next, the operation of this powder melting system will be described.

First, the solvent R from the solvent supply device 50 is stopped while the fixed quantity supply device X is stopped and the suction of the powder P passing through the powder discharge pipe 45 is stopped by closing the shutter valve 46. The rotor 5 is rotated while supplying only) and the operation of the dispersing apparatus Y is started. When the predetermined operation time has elapsed and the dispersing device Y is in a negative pressure state (for example, a vacuum of about -0.06 MPa), the shutter valve 46 is opened. As a result, the expansion chamber 47 of the fixed-quantity supply device X is in a negative pressure state (about -0.06 MPa), and the inside of the inlet part 41 and the vicinity of the lower opening 31b of the hopper 31 are in the negative pressure state and atmospheric pressure. It is a pressure state between states.

Then, the metering supply device X is operated to lower the powder P stored in the hopper 31 by the stirring action of the stirring blade 32A and the negative pressure suction force of the dispersing device Y. From the opening 31b, through the expansion chamber 47 of the metering-feeding mechanism 40, it continuously and quantitatively supplies to the mixing member 61 of the mixing mechanism 60 by predetermined amount. In parallel, the solvent supply mechanism 50 is operated to continuously and quantitatively supply the solvent R to the mixing member 61 of the mixing mechanism 60 by a negative pressure suction force of the dispersing apparatus Y.

From the mixing member 61 of the mixing mechanism 60, the powder P is supplied to the mixing inlet 11 through the cylindrical portion 62 of the mixing member 61, and the solvent R is Through the ring-shaped slit 63, it is supplied to the mixing inlet 11 in the form of a hollow cylindrical vortex without breaking, and the powder P and the solvent R are premixed by the mixing inlet 11. The premix Fp is introduced into two sets of ring-shaped grooves 10.

When the rotor 5 is rotationally driven at high speed and the partition body 15 rotates at high speed integrally with the rotor 5, two rows of scraper rows Lo and Li concentrically provided on the partition body 15 are provided. Each of the four scrapers 9 is circulated at high speed in a state where the tip portion 9T is fitted into each of the ring-shaped grooves 10 corresponding to each row.

Then, as shown by the solid arrow in FIGS. 4 and 5, the premix Fp introduced into the two sets of ring-shaped grooves 10 by flowing the mixing inlet 11 is a ring-shaped groove 10. It is scraped off by the tip portion 9T of the scraper 9 which is inserted into and circumscribed, and the scraped premix Fp is roughly formed in the partition 15 in the introduction chamber 13. It flows in the rotational direction of the rotor 5 along the front face of the funnel-shaped part 15b of the funnel-shaped part 15b, and the front surface of the ring-shaped flat plate part 15c, and also the penetration chamber side penetration hole of the stator 7 ( It flows into the wing chamber 8 through 7a), flows in the wing chamber 8 in the rotation direction of the rotor 5, and is discharged from the discharge port 12. As shown in FIG.

The premix Fp introduced into the two sets of ring-shaped grooves 10 undergoes a shearing action when scraped off by the tip portion 9T of the scraper 9. In this case, between the outward side surface 9o of the tip portion 9T of the scraper 9 and the inward inner surface of the inner ring-shaped groove 10 in the inner scraper row Li, and the inner scraper row Li. Shearing action occurs between the inward side surface 9i of the tip end portion 9T of the scraper 9 and the outward inner surface of the inner ring-shaped groove 10 of the scraper 9, and in the outer scraper row Lo 9T between the outward side surface 9o of the tip portion 9T of the scraper 9 and the inward inner surface of the outer ring-shaped groove 10 and the tip portion 9T of the scraper 9 in the outer scraper row Lo. Shear action takes place between the inward side surface 9i of) and the outwardly inner surface of the outer ring-shaped groove 10.

That is, since shear forces can be applied in four different regions in the radial direction of the rotor 5, the premix Fp is sufficiently finely decomposed and pulverized, and sufficient disturbance is generated in the flow of the premix Fp. The powder P can be dissolved and mixed in the solvent R uniformly.

In addition, since the four scrapers 9 are arranged in the circumferential direction at the same position in the radial direction of the rotor 5, the rotor 5 is rotated at the same position in the radial direction of the rotor 5 during one rotation. The shear shear force can be applied, and furthermore, since the arrangement phases in the circumferential direction of the four scrapers 9 constituting each row in the scraper rows Li and Lo in the inner and outer two rows are different, the mixing introduction port 11 With respect to the premix Fp introduced into the two sets of ring-shaped grooves 10 from, the shear force can be applied eight times during the rotation of the rotor 5.

That is, since the pressure pulsation can be caused at a high frequency with respect to the premix Fp in the introduction chamber 13, the premix Fp is further finely decomposed and pulverized, and the flow of the premix Fp is further reduced. It can cause disturbances.

Moreover, the scraper surface 9f which faces the rotation direction front of the rotor 5 of the tip part 9T of the scraper 9, and the rotation direction front of the rotor 5 of the middle part 9M of the scraper 9 Both of the facing dissipation surfaces 9m have a forward downward shape and are inclined outwardly.

Thus, the premixed material Fp scraped out of the ring-shaped groove 10 by the tip end portion 9T of the scraper 9 has a rotor (9f) by the scraper surface 9f of the tip end portion 9T of the scraper 9. The premixed Fp discharged into the introduction chamber 13 toward the radially outward side of 5) and thus discharged is further provided by the dissipation surface 9m of the middle portion 9M of the scraper 9. In the introduction chamber 13, it is guided to flow toward the radially outward side of the rotor 5. In addition, the premix Fp passes through the introduction chamber side perforation hole 7a, receives a shearing action, and is disintegrated and crushed at the time of passage of the introduction chamber side perforation hole 7a. ) Is subjected to shearing action to decompose and pulverize to form a paste (F) in which the powder (P) is sufficiently dissolved, and the paste (F) is discharged from the discharge port (12).

That is, the premix Fp introduced into the introduction chamber 13 from the mixing introduction port 11 can be mixed well while suppressing the retention, and can be discharged from the discharge port 12 as the paste F.

Moreover, when viewed from the axial direction of the rotor 5, the base end part 9B of each scraper 9 of the inner row Li, and the angle of the outer row Lo corresponding to each said scraper 9, respectively. Since the tip portion 9T of the scraper 9 is overlapped, the premix Fp scraped off by the scraper 9 of the inner row Li and moved to the radially outward side of the rotor 5 is the inner row. Since it is press-fitted between the proximal end 9B of the scraper 9 of Li and the distal end 9T of the scraper 9 of the outer row Lo, it undergoes a compression action, thereby decomposing and pulverizing and dissolving the premix Fp. May promote mixing.

In short, with respect to the pre-mixture Fp introduced into the two sets of ring-shaped grooves 10 from the mixing inlet 11, the shear force is applied in four different regions in the radial direction of the rotor 5, In the introduction chamber 13, since the pressure pulsation can be caused to the premix Fp at a high frequency, the premix Fp is finely decomposed and pulverized and dissolved and mixed to produce a paste F having a very small mass, The paste F is mixed with the paste F from the return chamber 14 described later and discharged from the discharge port 12.

The paste F discharged from the discharge port 12 is supplied to the separation device 70 through the discharge path 18, and in the separation device 70, the powder P is not completely dissolved. Undissolved paste (Fr) and paste (F) in a state in which the powder (P) is almost completely dissolved, and undissolved paste (Fr) is supplied to the dispersing apparatus (Y) again through the circulation path (16). The paste F is supplied to the supply destination 80 through the discharge passage 22.

The undissolved paste (Fr) is introduced into the return chamber (14) from the return port (17), and receives a shearing action by a plurality of stirring blades (21) rotating at high speed in the return chamber (14), Even more finely disintegrated and pulverized, and also under the action of shearing when passing through the returning chamber-side perforated hole 7b, it is disintegrated and crushed, and is further disintegrated and crushed under the shearing action by the rotary blade 6 rotating at a high speed. The paste F having less is mixed with the paste F from the introduction chamber 13 and discharged from the discharge port 12.

Therefore, the paste F in which little lump is present and powder P was melt | dissolved evenly can be suppressed effectively, and can be produced efficiently.

Next, the results of verifying that dissolution and mixing of the powder P and the solvent R can be promoted by employing the arrangement of the present invention as the arrangement of the scraper 9 are shown in FIGS. 10 to 12. And it demonstrates based on FIG.

10 to 12 simulate the flow state of the premix Fp in the introduction chamber 13, and pass through the vicinity of the opening of the ring-shaped groove 10 to the shaft center A3 of the casing 1. The relative flow velocity vector of the premix Fp with respect to the rotational velocity vector of the rotary blade 6 in the cross section orthogonal to is shown. 10-12, the relative flow velocity vector of the premix Fp in the return chamber 14 is also shown.

FIG. 13 is a simulation of the pressure distribution of the premix Fp in the introduction chamber 13. The shaft center A3 of the casing 1 is passed through approximately the center of the opening of the mixing inlet 11. The pressure distribution in the introduction chamber 13 and the return chamber 14 in the cross section included is shown in light and shade of color. That is, the lighter the color, the lower the pressure.

10 and 13 (a) form two rows of scraper rows (Li, Lo) concentrically, and arrange four scrapers (9) at equal intervals in the circumferential direction in each scraper row (Li, Lo). In addition, the arrangement form which made the arrangement phase of the scraper 9 different from the inside and outside scraper rows Li and Lo (Hereinafter, it may abbreviate as a two-column two-phase arrangement form.) That is, this embodiment The simulation results in the form of the configuration are shown. In addition, FIG. 11 and FIG. 13 (b) are arrangements in which two rows of scraper rows L are formed concentrically, in which the order of phases of the scrapers 9 is the same in the inner and outer scraper rows Li and Lo. The simulation results in the form (hereinafter, abbreviated as a two-row equivalent phase arrangement form) are shown. 12 and 13 (c) show a configuration in which a plurality of scrapers 9 are arranged in a circumferential direction in a state (line) positioned at the same position in the radial direction of the rotor 5 ( Hereinafter, it may abbreviate as a one-row arrangement form, ie, the simulation result in a conventional arrangement form.

When the area | region enclosed by the circle | round | yen enclosed in FIGS. 10-12 is focused, the diameter of the rotor 5 is compared with the one-row arrangement | positioning form in both the two-row biphasic arrangement form and the two-row equiphase arrangement form. The velocity vector of the component toward a direction inward direction is increasing, and the scraper 9 is arrange | positioned in a two-row biphasic arrangement | positioning form or a two-column in-phase arrangement | positioning form of the premixture Fp in the introduction chamber 13 It can be seen that it can promote the disturbance of the flow state.

When the area | region enclosed by the circle | round | yen is piled up in FIG. 13, in the vicinity of the opening part of the mixing introduction opening 11 with respect to the introduction chamber 13, a two-row biphasic arrangement form and a two-row equiphase arrangement form are arranged in a single row. Compared with the form, it turns out that distribution of pressure becomes large, and the pressure pulsation of the premix Fp in the introduction chamber 13 can be enlarged. That is, it turns out that the inside of the introduction chamber 13 becomes low pressure.

In addition, FIG. 13 (a) shows that the two-row two-phase two-phase arrangement has a larger frequency of occurrence of pressure pulsation (frequency) than the two-row two-phase, two-phase arrangement. Is generated finely, it can be seen that further disturbance of the flow state of the premix Fp is further promoted.

By the above-described verification, as in the present invention, the scraper 9 is provided with a plurality of different positions in the radial direction of the rotor 5, and the ring-shaped groove 10 is provided in the radial direction of the rotor 5. By installing a plurality of concentrically in correspondence with the scrapers 9 provided at different positions of each, it is possible to promote the action of decomposing and crushing the premix Fp, and the action of causing disturbance in the flow of the premix Fp. It can be seen that the mixing ability of the dispersion and the liquid dispersion medium can be improved.

Further, when the plurality of scrapers 9 are arranged at equal intervals in the circumferential direction to form each scraper row L, the scrapers 9 arranged in the circumferential direction of the scraper rows L adjacent to each other are arranged. It is possible to make the phases different from each other to make the action of decomposing and pulverizing the premix Fp and the effect of causing disturbance in the flow of the premix Fp, rather than making the same, resulting in dispersoid and liquid dispersion medium. It can be seen that the mixing ability of can be improved.

[Other Embodiments]

(A) In each of the different positions in the radial direction of the rotor 5, a plurality of scrapers 9 are arranged in the circumferential direction to form a plurality of concentric scraper rows L. The scraper 9 The arrangement forms illustrated in the above embodiments are arranged in the above-described embodiment, that is, the same number of scrapers 9 are arranged in the circumferential direction at equal intervals in each row, and the scraper rows L adjacent to each other are arranged. ) Is not limited to a form in which the array phases in the circumferential direction are different from each other.

(A-1) For example, the number of columns of the scraper rows L is not limited to the two columns described in the above embodiment, and may be three or more rows. However, as the number of rows increases, the thickness in the direction along the radial direction of the rotor 5 in each scraper 9 decreases, so that the strength of the scraper 9 decreases, so that the row of the scraper rows L It is desirable to keep the number as small as possible.

In addition, the number of the plurality of scrapers 9 constituting each scraper row L is not limited to four as in the above-described embodiment, but may be two or three, and may be five or more.

(A-2) The same number of scrapers 9 are arranged in the circumferential direction at equal intervals in each scraper row L, and the scraper rows L adjacent to each other are arranged in the circumferential direction. It may be the same.

(A-3) In the scraper row L, the plurality of scrapers 9 may be arranged in the circumferential direction at different intervals. In this case, the number of scrapers 9 constituting the scraper rows L may be the same in each row or may be different.

(B) In the above embodiment, in each of the different positions in the radial direction of the rotor 5, a plurality of scrapers 9 are arranged in the circumferential direction, but each of the different positions in the radial direction of the rotor 5 In the above, the scrapers 9 may be provided one by one.

In this case, the plurality of scrapers 9 may or may not be arranged along the radial direction of the rotor 5.

(C) In the above embodiment, the partition body 15 is provided on the front side of the rotor 5 in a state of integrally rotating with the rotor 5, and the scraper 9 is provided in the partition body 15. When the powder P can be properly dissolved and mixed in the solvent R without circulating a part of the paste F discharged from the discharge port 12, the separator 70 is omitted and the partition The sieve 15 may be omitted and the scraper 9 may be installed directly on the rotor 5.

(D) In said embodiment, although the CMC powder of a single type was used as powder P, the mixed powder which mixed multiple types of powder as needed can be used as powder P. As shown to FIG. Similarly, although a single kind of water is used as the solvent (R), a mixed liquid obtained by mixing plural types of liquid can be used as the solvent (R), if necessary.

In the above embodiment, the present invention is applied to dispersing the dispersant in the liquid dispersion medium by using the powder P as the dispersoid and using the solvent R as the liquid dispersion medium. Even when it disperse | distributes without dissolving in a dispersion medium, this invention is applicable.

In addition, as a dispersoid, it is not limited to the powder P illustrated in the said embodiment, For example, it may be a liquid thing. For example, the present invention can also be applied when dispersing oil as a dispersant in water as a liquid dispersion medium.

As described above, it is possible to provide a centrifugal dispersion device capable of suppressing the generation of lumps and improving the mixing ability of the dispersoid and the liquid dispersion medium.

1 casing
2 front wall parts
3 rear wall parts
4 outer circumference
5 rotor
6 rotary wing
7 stator
7a Introduction chamber penetration hole (through hole)
7b Returning measurement through hole (through hole)
8 wing chamber
9 scraper
9B base
9T tip
10 ring groove
11 Mixed Inlet (Introduction)
12 outlet
13 introduction room
14 return room
15 partitions
16 circuits
17 return
F paste (production fluid)
Fp premix
L scraper column
P powder (dispersoid)
R solvent (liquid dispersion medium)

Claims (6)

In the casing having a cylindrical outer circumferential wall portion whose openings are closed at both the front wall portion and the rear wall portion, the rotor having a rotary blade on the radially outer side is arranged concentrically in a state capable of rotationally driving, and the plurality of permeation holes are circumscribed. Cylindrical stators arranged side by side are positioned concentrically on the front side of the front wall portion of the rotor and inside the rotary blades,
Between the stator and the outer circumferential wall portion of the casing, a ring-shaped wing chamber around which the rotary blades are formed is formed,
A ring-shaped groove is formed on an inner surface of the front wall portion, and on the front side of the rotor facing the front wall portion, a scraper is disposed so as to be integrally rotatable with the rotor in a state where the front end thereof enters the ring-shaped groove. ,
An inlet for introducing a premixed mixture of the dispersoid and the liquid dispersion medium into the casing by suction of the rotary blade is provided in the front wall portion in communication with the ring-shaped groove,
A centrifugal dispersing device provided in the outer circumferential wall portion in which a discharge port for discharging a generated fluid generated by mixing a dispersoid and a liquid dispersion medium is in communication with the wing chamber.
The scraper is provided in plural with different positions in the radial direction of the rotor,
A centrifugal dispersing device in which a plurality of ring-shaped grooves are provided concentrically in correspondence with the scrapers respectively provided at different positions in the radial direction of the rotor. The method according to claim 1,
In each of the different positions in the radial direction of the rotor, a plurality of scrapers are arranged in the circumferential direction so that a plurality of concentric scraper rows are formed. The method according to claim 2,
A plurality of scrapers constituting each of the scraper rows are arranged at equal intervals in the circumferential direction, and the scraper rows adjacent to each other are arranged so that the phases in the circumferential direction are different from each other. The method according to claim 3,
Each scraper is formed in a rod shape, and in the radial direction of the rotor, the front end portion of the rod-shaped scraper is located on the front wall portion side, and the tip of the rod-shaped scraper is viewed in the axial direction of the rotor. As the side is inclined position located in the radially inner side of the rotor, the proximal end of the rod-shaped scraper is fixed to rotate integrally with the rotor,
A centrifugal dispersing device in which the rotor is rotationally driven in a direction in which the tip of the scraper is in the forward direction when viewed in the axial direction. The method of claim 4,
When the plurality of scrapers constituting the adjacent scraper rows are viewed in the axial direction of the rotor, portions of the base end side of the scrapers in the inner row and portions of the front end side of the scrapers in the outer row corresponding to the scrapers are overlapped. A centrifugal dispersing device, arranged in the circumferential direction. The method according to claim 5,
A return port for returning a part of the production fluid discharged from the discharge port into the casing through a circulation path is provided in the front wall portion,
A partition for partitioning the inner circumferential side of the stator into the introduction chamber on the front wall side and the return chamber on the rotor side is provided on the front side of the rotor while being integrally rotated with the rotor, and the front wall side of the partition body. The scraper is installed in
The introduction chamber and the return chamber are configured to communicate with the wing chamber through a plurality of transmission holes of the stator,
And the introduction port communicates with the introduction chamber, and the return port communicates with the recovery chamber.

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