JP6919940B1 - Disperser - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dispersion device capable of efficiently performing maintenance of an apparatus while suppressing an installation area, and efficiently adjusting the temperature of the material to be dispersed before being discharged to the outside. SOLUTION: A dispersion device 1 is provided with a rotor 6 for dispersion at the tip of an inner shaft 4 of two concentric shafts that rotate relatively and have overlapping axes, and has a tubular shape that surrounds the inner shaft 4 from the outside. A rotary container 7 for accommodating the rotor 6 is provided at the tip of the outer shaft 5 of the above. Further, the disperser 1 includes a drive mechanism for rotating the inner shaft 4 and the outer shaft 5. The inner shaft 4 includes a tubular portion 8 that forms a supply flow path 8A that allows a material to be dispersed supplied from the outside to flow into the tubular shape and guides the material to be dispersed to the rotary container 7. Further, the inner shaft 4 has a discharge flow path 9 that allows the material to be dispersed in the rotary container 7 to flow in between the outer peripheral surface of the tubular portion 8 and the inner wall surface of the inner shaft 4 and guides the material to the outside. [Selection diagram] Fig. 2

Description

The present invention relates to battery materials for lithium-ion secondary batteries, coating materials such as color filter pigments and antireflection agents used for panel displays, materials for electronic components such as capacitors, and organic / inorganic pigments such as paints, inks, and paints. The present invention relates to a biaxial disperser that disperses or pulverizes a material to be dispersed (solvent + pigment, etc.) in the process of producing other organic / inorganic materials.

As a disperser, an annular type bead mill that disperses a material to be dispersed while mixing it with a solvent using beads is known. For example, as a dispersion device, a wet granulation device configured as follows is known. The wet granulation device is provided with a dispersion rotor at the tip of one of the pair of rotating shafts arranged opposite to each other, and a rotary container for accommodating the dispersion rotor at the tip of the other rotary shaft. It is equipped with a rotation drive mechanism that is directly connected to each of the end sides. Further, the wet granulator supplies the material to be dispersed from a flow path provided near one rotation axis, and discharges the material to be dispersed after the dispersion treatment from a flow path provided near the other rotation axis. ing. Further, the wet granulation apparatus includes a storage container that stores a rotary container, fills the inside with a refrigerant, and cools the rotary container in a state of being immersed in the refrigerant (see Patent Document 1).

Japanese Patent No. 5745697

However, since the dispersive device described in Patent Document 1 has a pair of rotating shafts arranged so as to face each other, there is a problem that the installation area becomes large when horizontally arranged. That is, the length of about two rotating shafts and the length of the size of the rotating container and the two rotating drive mechanisms are required. In addition, when performing maintenance inside the disperser, the attachment (dispersion rotor or rotary container) at the tip of one of the rotary shafts, the rotary shaft and the rotary drive mechanism are moved horizontally together with the disperser rotor at the tip of each rotary shaft. A space of the total length is required, which is the sum of the length of the moving distance until the rotating container is completely separated, the length of the two rotating shafts, and the length of the rotating drive mechanism. That is, a space having a length of about twice the total length of the device is required.

Further, in the conventional dispersion device, when cleaning the inside of the internal dispersion rotor and the rotary container, the refrigerant is removed from the storage container, and the rotary container and the dispersion rotor are separated only after the storage container is removed from the rotary shaft. There is also the inconvenience that it cannot be done and it takes a lot of time and effort to maintain the inside. Further, there is also a problem that the refrigerant remaining inside each of the rotating container and the material to be dispersed leaks to the outside and pollutes the environment at the time of removing the storage container and separating the rotating container and the dispersion rotor.

Further, the conventional dispersion device has a problem that, depending on the type of the material to be dispersed, the temperature becomes high due to heat generation during the dispersion treatment, and the temperature cannot be sufficiently lowered until the material to be dispersed is discharged to the outside of the device. ..

The present invention has been made to solve such a problem, and it is possible to efficiently perform maintenance of the apparatus while suppressing the installation area, and to efficiently discharge the material to be dispersed to the outside. It is an object of the present invention to provide a disperser that can be adjusted well.

The present invention provides the following dispersion devices.

A rotor for dispersion is provided at the tip of the inner shaft of the two concentric shafts that rotate relatively and the axes overlap, and the rotor is housed at the tip of the tubular outer shaft that surrounds the inner shaft from the outside. A disperser equipped with a rotating container
A drive mechanism for rotating at least the inner shaft of the inner shaft and the outer shaft is provided.
The inner shaft includes a supply flow path for flowing a material to be dispersed supplied from the outside into the inside of the inner shaft and guiding the material to the rotary container.
It has a discharge flow path that allows the material to be dispersed, which has been dispersed in the rotary container, to flow in and guide the material to the outside.
The rotor has a bottomed tubular shape and has a bottomed tubular shape.
The outer shaft has a lid that is fixedly connected to the tip end side of the outer shaft .
The rotary container has a bottomed tubular shape for accommodating the rotor so that the outer peripheral surface of the rotor and the inner peripheral surface of the rotary container face each other with a gap in the radial direction of the rotor. The rotor can be attached to and detached from the lid on the tip end side of the outer shaft. The outer peripheral surface is configured to be exposed at the tip of the outer shaft.

According to this configuration, since the axes of the inner shaft and the outer shaft are arranged so as to overlap each other, the installation area can be reduced as compared with the conventional two-axis type disperser. In addition, since the rotary container is cantilevered and there is no rotating shaft or other structure such as the opposed biaxial type on the bottom surface side, the rotary container can be easily separated and the maintenance efficiency is improved. .. Further, since the inner shaft and the outer shaft are provided only on one side of the rotary container and a seal (for example, a mechanical seal) needs to be provided only between the rotary container and the inner shaft, the number of parts can be reduced, and as a result, the number of parts can be reduced. It facilitates the design to prevent leakage of the material to be dispersed between the rotating container and the rotating shaft. Further, the dispersion device having this configuration may adopt, for example, a configuration in which the supply port of the material to be dispersed, the supply port of the cleaning solvent, and the discharge port of the material to be dispersed after the dispersion treatment are concentrated at one end of the inner shaft. can. This facilitates the layout design of the supply flow path from each externally installed supply source to the inner shaft and each route from the discharge flow path to the externally installed collection unit. Further, since the inner shaft has a supply flow path and a discharge flow path, a process of supplying the material to be dispersed, which has generated heat in the rotary container and whose temperature has risen, from the supply flow path in the process of discharging the material to the outside through the discharge flow path. The treated material to be dispersed can be cooled by the previous material to be dispersed (for example, below room temperature).

In the above configuration, for example, one of the supply flow path and the discharge flow path is formed inside the tubular portion provided inside the inner shaft, and the other flow path is the tubular shape. It is formed on the outside of the part.

According to this configuration, one of the supply flow path and the discharge flow path is arranged as a tubular portion at the center of the inner shaft, and the other flow path is arranged so as to surround the tubular portion from the outside. Therefore, when the supply flow path is provided inside the tubular portion, the material to be dispersed after the dispersion treatment passing through the discharge flow path can be cooled from the inside. When the discharge flow path is provided inside the tubular portion, the material to be dispersed after the dispersion treatment passing through the tubular portion can be cooled from the outside.

In the above configuration, it is preferable that the tubular portion is made of a member separate from the inner shaft and is rotated independently of the inner shaft by a drive mechanism.

In this configuration, the tubular portion is a member separate from the inner shaft. This tubular portion is rotated independently of the inner shaft by a drive mechanism. Along with the rotation of the tubular portion, the flow velocity increases when the material to be dispersed, which is introduced from the supply flow path, passes through the tubular portion, and the pressure loss when flowing into the rotary container from the supply flow path is reduced. Can be done. Further, the flow velocity of the material to be dispersed passing through the discharge flow path is also increased by the rotation of the tubular portion and / or the rotation of the inner shaft. Therefore, the material to be dispersed can be efficiently circulated in the dispersion device. It should be noted that the above-mentioned pressure loss should be reduced regardless of whether the rotation drive of the inner shaft and the tubular portion are rotated at different speeds to have a relative speed difference or the same speed is used. Can be done. Here, the relative speed difference between the rotation speeds of the inner shaft and the tubular portion includes the case where the rotation of the tubular portion is stopped.

In the above configuration, the rotor forms a gap for dispersion processing between the outer peripheral surface of the rotor and the inner wall surface of the rotary container, has a media separation portion inside the rotor, and is on the outer peripheral surface of the rotor. possess an opening for communicating the internal of the rotor gap,
The dispersion rotor guides the dispersion target material that has passed through the dispersion processing gap into the inside of the rotor, separates the media mixed in the dispersion target material by the media separation unit, and separates the media. Is returned from the opening to the gap, while the material to be dispersed is guided to the discharge flow path.

According to this configuration, in the process of sending the material to be dispersed after the dispersion treatment from the media separation part to the discharge flow path, the media is separated from the material to be dispersed and returned from the media separation part to the gap for the dispersion treatment. Give rise to a cycle. Therefore, the material to be dispersed can be efficiently dispersed by reusing the media.

In the above configuration, it is preferable that the rotary container has a flow path inside the outer peripheral wall for circulating a liquid for adjusting the internal temperature.

According to this configuration, it is not necessary to provide a storage container for immersing the rotary container in the refrigerant so as to surround the outer circumference of the rotary container. Therefore, a configuration in which the outer peripheral surface of the rotary container is exposed to the outside can be adopted. Therefore, when the disperser is to be disassembled for maintenance, the rotor and the rotary container inside the rotary container can be easily maintained simply by removing the rotary container from the outer shaft. Further, unlike the conventional disperser, it is not necessary to immerse the rotary container in the refrigerant in the storage container, so that it is possible to avoid environmental pollution due to the leakage of the refrigerant that occurs when the storage container is removed. Further, according to this configuration, since the rotating container and the jacket for temperature adjustment are integrated, the number of parts can be reduced and the configuration can be simplified.

In the above configuration, the drive mechanism comprises at least one drive source and
A drive transmission mechanism configured to transmit a rotational driving force for rotating the rotating body from the at least one driving source to a rotating body rotating about the axis is provided.
The rotating body includes at least the inner shaft and the outer shaft.
It is preferable that the at least one drive source is provided between the base end through which the material to be dispersed of the inner shaft flows in and the end surface (bottom surface) on the tip end side of the rotary container provided at the tip end of the outer shaft.

According to this configuration, the drive transmission mechanism is connected to a rotating body such as an inner shaft and an outer shaft. That is, since the concentric biaxial outer and inner axes are arranged on one side of the rotary container, the drive transmission mechanism and each axis are compared with the distance between the drive sources in the conventional opposed biaxial type disperser. The distance between the connectable ranges of can be shortened. Further, once the position or range for connecting the drive transmission mechanism to each axis is determined, the position and range in which the drive source is arranged can be roughly determined from the size of the drive source according to the drive transmission mechanism. For example, if the disperser tries to set the position of the end that can be connected to the drive transmission mechanism as a reference, the base end through which the material to be dispersed on the inner shaft flows becomes the reference position, and the end face on the tip side of the rotary container from this reference position. A drive source can be provided up to (bottomed surface). That is, the drive mechanism including the drive source and the drive transmission mechanism is arranged so as not to exceed the total length (length in the axial direction) of the main body of the dispersion device to be rotationally driven. Therefore, the drive source and the drive transmission mechanism can be housed and arranged within the installation range of the main body of the disperser, and the individual rotating shafts arranged with the rotating container sandwiched like the conventional opposed biaxial type disperser are individually arranged. Since it is not necessary to provide a drive mechanism in the disperser, the installation area of the disperser can be significantly reduced as compared with the conventional opposed biaxial type disperser. The drive transmission mechanism engages with, for example, an engaging portion (for example, a driven pulley 15) provided on a surface exposed to the outside of the inner shaft. When the inner shaft rotates, the rotor rotates together with the inner shaft. The drive transmission mechanism engages, for example, with an engaging portion (for example, a driven pulley 22) provided on a surface exposed to the outside of the outer shaft. The drive transmission mechanism may engage with an engaging portion provided on a surface exposed to the outside of the rotary container. When either the outer shaft or the rotary container rotates, the other also rotates.

In the above configuration, the rotary container has a medium (beads) for dispersion inside.

According to this configuration, the material to be dispersed can be efficiently dispersed and mixed by the collision of the media in the rotary container.

In the above configuration, for example, the tubular portion may have a polygonal tubular shape.

According to this configuration, with the rotation of the tubular portion, the flow velocity increases when the material to be dispersed, which is introduced from the supply flow path, passes through the tubular portion, and when the material flows into the rotary container from the supply flow path. The pressure loss can be reduced. Further, the flow velocity of the material to be dispersed passing through the discharge flow path is also increased by the rotation of the tubular portion and / or the rotation of the inner shaft. Therefore, the material to be dispersed can be efficiently circulated in the dispersion device. It should be noted that the above-mentioned pressure loss should be reduced regardless of whether the rotation drive of the inner shaft and the tubular portion are rotated at different speeds to have a relative speed difference or the same speed is used. Can be done. Here, the relative speed difference between the rotation speeds of the inner shaft and the tubular portion includes the case where the rotation of the tubular portion is stopped.

INDUSTRIAL APPLICABILITY According to the present invention, maintenance inside the device can be efficiently performed while reducing the installation area of the distributed device, and the temperature of the material to be dispersed after the dispersion treatment can be efficiently adjusted before being discharged to the outside. ..

It is a front view which shows the whole of the dispersion apparatus which concerns on 1st Embodiment of this invention. It is sectional drawing which shows the main part of the dispersion apparatus which concerns on 1st Embodiment of this invention. FIG. 2 is an enlarged cross-sectional view of a main part of the dispersion device shown in FIG. FIG. 3 is a cross-sectional view taken along the line XX of FIG. It is a front view of the rotor for dispersion. It is explanatory drawing of the layout of the drive mechanism and the separation operation of a rotary container in a dispersion device. It is a figure explaining the operation at the time of the distributed processing by the distributed apparatus which concerns on 1st Embodiment. It is a front view which shows the schematic structure of the dispersion apparatus which is the modification of 1st Embodiment. It is a front view which shows the schematic structure of the dispersion apparatus which is the modification of 1st Embodiment. It is an enlarged sectional view of the main part of the dispersion apparatus which is a modification of 1st Embodiment.

<First Embodiment>
Hereinafter, an embodiment of the dispersion device according to the present invention will be described in detail with reference to the drawings. In the disperser of the present embodiment, a disperser (for example, a bead mill) in which a material to be dispersed containing agglomerates of primary particles is mixed with a solvent and dispersed using beads will be described, but the present invention is described only as a disperser. However, it can also be used as a crushing device for finely crushing the primary particles of the material to be dispersed. Further, in the present embodiment, a horizontal type disperser in which two concentric axes that rotate relative to each other and have overlapping axes are arranged in the horizontal direction in connection with a drive mechanism described later will be described. The same applies to a vertical disperser in which is arranged along the vertical direction. The beads are an example of media, and are appropriately selected according to the type of material to be dispersed, the hardness of particles, the particle size, the viscosity and specific gravity of the solvent (raw material paste) to be added.

As shown in FIG. 1, in the dispersion device 1, the device main body to be rotationally driven is horizontally cantilevered and supported by a holding unit 3 erected from the base 2. Further, as shown in the cross-sectional view of FIG. 2, the dispersion device 1 has two concentric axes including an inner shaft 4 and an outer shaft 5 that surrounds the inner shaft 4 from the outside, and the tip of one inner shaft 4 is provided. Is provided with a rotor 6 for dispersion, and a rotary container 7 for accommodating the rotor 6 is provided at the tip of the other outer shaft 5.

The inner shaft 4 is a tubular member, and has a tubular portion 8 forming a supply flow path 8A that guides a material to be dispersed supplied from the outside into the inside of the rotary container 7, and a dispersion process inside the rotary container 7. It has a discharge flow path 9 that guides the material to be dispersed to the outside. That is, in the present embodiment, the supply flow path 8A is arranged inside the inner shaft 4 in the radial direction, and the discharge flow path 9 is arranged outside the supply flow path 8A, that is, outside the radial direction of the inner shaft 4. In the present embodiment, the inner shaft 4 is a cylindrical member, but it may be a polygonal tubular member.

The tubular portion 8 is a cylindrical member having an outer diameter smaller than the inner diameter of the inner shaft 4, and is arranged at the same axial center that coincides with the axial center of the inner shaft 4. Further, the tubular portion 8 is fixed to the inner shaft 4 on the proximal end side, and is configured to rotate together with the inner shaft 4. Further, the supply flow path 8A in the tubular portion 8 has an inlet 10 for flowing the material to be dispersed on the base end side, penetrates the center of the rotor 6 on the tip end side, and faces the bottom surface of the rotary container 7. It has an outlet 11 (see FIG. 3). The tip end side of the tubular portion 8 has an expansion portion 12 that is expanded beyond the outer diameter and inner diameter of the base end side within a predetermined length range. With this configuration, the outer peripheral surface of the expansion portion 12 and the inner wall surface of the inner shaft 4 are infinitely close to each other to the extent that they do not come into contact with each other, but they may be in close contact with each other.

The expansion unit 12 is provided with a check valve 13 at its tip that opens and closes the outlet 11. The check valve 13 opens the supply flow path 8A by the dispersion target material supplied to the rotary container 7 through the supply flow path 8A, while the supply flow path 8A is opened when the dispersion target material is not supplied to the rotary container 7. It is configured to be closed. In the present embodiment, the check valve 13 is used, but the present invention is not limited to this, and any configuration may be used as long as the outlet 11 can be opened and closed at an appropriate timing. When a valve body having another configuration is adopted, the position of the valve body is not limited to the outlet 11, and may be inside the supply flow path 8A.

The discharge flow path 9 is formed by a gap having a predetermined width formed by the outer peripheral surface of the tubular portion 8 and the inner wall surface of the inner shaft 4. Further, the discharge flow path 9 communicates with the rotor internal space 26 via a screen 30 described later on the tip side (see FIG. 3). That is, only the material to be dispersed after the dispersion treatment is guided from the rotor internal space 26 to the discharge flow path 9, and is discharged to the outside from the discharge port 14 on the proximal end side. A sealing material is provided inside the discharge flow path 9 on the tip side so that the material to be dispersed during the dispersion treatment that flows in from the minute gap between the inner shaft 4 and the tip side of the tubular portion 8 does not flow in. There is.

Further, the inner shaft 4 has a driven pulley 15 on the proximal end side. As shown in FIG. 6, the driven pulley 15 is driven and connected to a drive pulley 17 provided at the tip of a rotation shaft of a drive source 16 such as a motor via a chain belt 18. The driven pulley 15, the drive source 16, the drive pulley 17, and the chain belt 18 constitute the drive mechanism of the present invention.

The inner shaft 4 is provided with a plurality of bearings B provided at predetermined intervals in the axial direction by inserting the base end side into a tubular holding portion 3 extending in the axial direction from the vertical wall of the base 2. It is rotatably cantilevered and supported inside the holding portion 3 via.

The outer shaft 5 surrounds a tubular holding portion 3 accommodating the inner shaft 4 from the outside, and can be rotated by a plurality of bearings B1 provided at predetermined intervals in the axial direction between the outer shaft 5 and the holding portion 3. Cantilevered support. The outer shaft 5 further has a driven pulley 22 that is fixedly connected to the lid 21 of the rotary container 7 and rotates around the holding portion 3. The driven pulley 22 is drive-connected via a chain belt 25 to a drive pulley 24 provided at the tip of a rotating shaft of a drive source 23 for an outer shaft such as a motor. The driven pulley 22, the drive source 23, the drive pulley 24, and the chain belt 25 constitute the drive mechanism of the present invention.

In this embodiment, power may be distributed from the drive source 23 as a drive mechanism, and a power transmission mechanism for transmitting the distributed power may be interposed. For example, the power transmission mechanism may include a clutch, a speed reducer, or the like.

As shown in FIGS. 3 to 5, the rotor 6 has a bottomed cylindrical shape having a bottomed surface on the tip side. The rotor 6 forms an annular gap S1 for dispersion processing between the outer peripheral surface thereof and the inner wall surface of the rotary container 7, and the inside of the rotary container 7 is in a state where the axis of the rotor 6 is aligned with the rotary container 7. It is housed in a rotatable manner. In this embodiment, the rotor 6 has a rotor internal space 26 that opens toward the base end of the inner shaft 4. Further, the rotor 6 has a through hole in the center that penetrates in the axial direction of the inner shaft 4. The inner shaft 4 is inserted and connected and fixed in the through hole. Therefore, the rotor 6 is rotatably cantilevered and supported integrally with the inner shaft 4.

Further, the rotor 6 has a plurality of through holes 27 at equal intervals from the rotor internal space 26 in the radial direction toward the center. The through hole 27 communicates with a plurality of through holes formed on the outer periphery of the inner shaft 4. That is, the material to be dispersed after the dispersion treatment is guided to the discharge flow path 9 formed inside the inner shaft 4 through the through hole 27.

Further, the rotor 6 includes a plurality of stirring protrusions 28 that protrude outward in the radial direction from the outer peripheral surface. The rotor 6 applies kinetic energy to the beads, which are media, by means of the outer peripheral surface and the stirring protrusions 28 to disperse the material to be dispersed.

The peripheral wall portion of the rotor 6 is provided with a bead discharge opening 29 that extends elongated along a direction parallel to the axis thereof. The bead discharge opening 29 is provided so as to penetrate the rotor peripheral wall portion, and communicates the gap S1 for dispersion processing with the rotor internal space 26. With this configuration, the beads introduced into the rotor internal space 26 through the gap S for the dispersion treatment and the opening of the rotor internal space 26 are returned to the gap S for the dispersion treatment through the bead discharge opening 29.

The length of the bead discharge opening 29 in the extending direction is appropriately set according to the depth of the rotor internal space 26. The width of the bead discharge opening 29 is appropriately set according to the outer diameter of the rotor 6 and the like. In the present embodiment, the length of the bead discharge opening 29 in the extending direction is set to be substantially the same as the depth of the rotor internal space 26. In the present embodiment, a plurality of bead discharge openings 29 are formed at equal intervals in the circumferential direction on the rotor peripheral wall portion. The bead discharge opening 29 corresponds to the opening of the present invention.

The stirring protrusion 28 has a cylindrical tip with a round tip, and is set at a height at which the tip does not come into contact with the inner wall surface of the rotary container 7. The stirring protrusions 28 are provided at equal intervals in a straight line parallel to the axis of the inner shaft 4. In the present embodiment, the stirring protrusions 28 are provided on the outer peripheral surface between the adjacent bead discharge openings 29 so as to be linearly aligned at equal intervals. The number, size, height, position, and combination thereof of the stirring protrusions 28 may be appropriately changed according to the composition of the material to be dispersed and the dispersion level. Further, the configuration may not have the stirring protrusion 28. For example, instead of the columnar stirring protrusion 28, a blade-shaped protrusion having a predetermined length in the axial direction may be used, or a hemispherical protrusion may be used.

The rotor internal space 26 has a screen 30. The screen 30 has a tubular shape, and is rotatably housed in the rotor internal space 26 in a state where the rotor internal space 26 is divided into two in the axial direction and the rotor 6 and the axial center are aligned with each other. The screen 30 of this embodiment rotates integrally with the rotor 6. Therefore, the screen 30 separates beads, foreign substances, and the like from the material to be dispersed, guides the material to be dispersed after the dispersion treatment into the space S2 on the axial side divided into two, and discharges the material to the discharge flow path 9 through the through hole 27. ..

The rotary container 7 has a bottomed cylindrical shape and is detachably attached to the lid 21. Since the lid 21 is connected and fixed to the outer shaft 5, the rotary container 7 is integrally cantilevered and supported by the holding portion 3 together with the outer shaft 5. Further, the rotary container 7 has a discharge portion 50 diagonally downward at a corner portion having a bottom surface. A plurality of beads for dispersion are housed inside the rotary container 7.

The discharge unit 50 discharges the cleaning medium after cleaning when the cleaning medium is circulated through the supply flow path 8A, the rotor 6, the rotary container 7, and the discharge flow path 9 of the dispersion device 1 for cleaning. For example, as shown in FIG. 7, the discharge flow path 51 is communicated with the discharge unit 50, and the cleaning medium after cleaning is collected in the collection container 44. In the cleaning process, the cleaning medium may be supplied from the supply flow path 8A or may be supplied from the discharge flow path 9. When the cleaning medium is supplied from the discharge flow path 9, the cleaning medium is pressure-fed in the direction opposite to the material to be dispersed, so that foreign matter such as crushed or chipped media that is clogged in the screen 30 is pushed back to the discharge unit. Along with discharging from 50, all the media previously charged into the rotary container 7 are also collected via the discharging unit 50.

A flow path 32 is formed inside the peripheral side wall 31 of the rotary container 7. By supplying and circulating the refrigerant or hot water through the flow path 32, the temperature inside the rotary container 7 can be adjusted. That is, the rotary container 7 itself functions as a jacket for temperature adjustment.

Further, the rotary container 7 has a plurality of stirring protrusions 33 protruding inward in the radial direction on the inner wall surface. The rotary container 7 applies kinetic energy to the beads housed inside by the stirring protrusions 28 and the stirring protrusions 33 on the outer peripheral surface of the rotor 6 to disperse the material to be dispersed.

The stirring protrusions 33 have a cylindrical tip with a round tip, and the tips are arranged alternately so as not to come into contact with the outer peripheral surface of the rotor 6 and the stirring protrusions 28 provided on the outer peripheral surface. The stirring protrusions 33 are provided at equal intervals in a straight line parallel to the axis of the inner shaft 4. The number, size, height, position, and combination thereof of the stirring protrusions 33 may be appropriately changed according to the composition of the material to be dispersed and the dispersion level. For example, the configuration may not have the stirring protrusion 33. Further, instead of the columnar stirring protrusion 33, a blade-shaped protrusion having a predetermined length in the axial direction may be used, or a hemispherical protrusion may be used.

Further, as shown in FIG. 6, the rotary container 7 is provided with an engaging connecting portion 34 on the outer periphery. The engagement connecting portion 34 may be any one that engages the hook metal fitting 36 provided at the tip of the wire 35 in the present embodiment, and is, for example, a ring or a metal plate punched out in a circular shape.

As shown in FIGS. 2 and 3, the lid body 21 has a mechanical seal 37 between the lid body 21 and the inner shaft 4 penetrating the center thereof. In this embodiment, another seal structure may be adopted instead of the mechanical seal 37.

The drive transmission mechanism of the inner shaft 4 engages with an engaging portion provided on the surface of the inner shaft 4 exposed to the outside. The engaging portion in the present embodiment is a driven pulley 15, and the driven pulley 15, the drive source 16, the drive pulley 17, and the chain belt 18 function as the drive transmission mechanism of the present invention. As shown in FIGS. 1 and 6, this drive transmission mechanism is arranged on the proximal end side of the inner shaft 4 in the present embodiment. However, although the drive transmission mechanism of the inner shaft 4 depends on the positional relationship with the outer shaft 5, the arrangement can be appropriately changed as long as it is in the range between the base end X1 of the inner shaft 4 and the mechanical seal 37. Is.

The drive transmission mechanism of the outer shaft 5 engages with an engaging portion provided on a surface exposed to the outside. The engaging portion in the present embodiment is a driven pulley 22, and the driven pulley 22, the drive source 23, the drive pulley 24, and the chain belt 25 function as the drive transmission mechanism of the present invention. The arrangement of this drive transmission mechanism can be changed according to the length of the holding portion 3. For example, when the holding portion 3 extends to the proximal end side or is provided only on the proximal end side, the drive transmission mechanism of the outer shaft 5 can be arranged on the proximal end X1 side. In particular, since the outer shaft 5 is arranged so as to surround the inner shaft 4 from the outside, the drive transmission mechanisms are arranged close to each other without overlapping. In the present embodiment, the drive transmission mechanism of the outer shaft 5 can be arranged in the range from the base end X1 to the front of the lid 21, but the rotary container 7 itself is made by utilizing the surface of the rotary container 7. May be rotated.

The drive source 16 of the inner shaft 4 and the drive source 23 of the outer shaft 5 are housed inside the base 2 as shown in FIGS. 1 and 6. The drive sources 16 and 23 are arranged in a range from the base end X1 of the inner shaft 4 to the bottomed position X2 which is the end surface of the rotary container 7, as in the present embodiment, and the entire drive mechanism falls within this range. Is preferable. In this embodiment, the arrangement of the drive mechanism is set as follows.

That is, since the inner shaft 4 and the outer shaft 5 are configured as two concentric shafts whose axes overlap, the driven pulleys 15 and 22 of the drive transmission mechanism are provided on the respective shafts 4 and 5. Further, when the positions or ranges for providing the driven pulleys 15 and 22 on the axes 4 and 5 are determined, the chain belts 18 and 25 are pulled out from the positions in the direction orthogonal to the axes and provided on the drive sources 16 and 23. It is wound around each of the driven pulleys 17 and 24. Therefore, the drive transmission mechanism is arranged in a direction orthogonal to the inner shaft 4 and the outer shaft 5.

With this arrangement, the drive sources 16 and 23 provided on the other end side of the chain belts 18 and 25 opposite to the shafts 4 and 5 of the drive transmission mechanism are the inner shaft 4, the outer shaft 5, the rotor 6 and the rotary container 7. It is arranged so as to be adjacent to the main body of the dispersive device 1 composed of the above. Therefore, the range to be arranged is roughly determined according to the size of each of the drive sources 16 and 23. For example, when the disperser 1 tries to set the position of the end that can be connected to the drive transmission mechanism as a reference, the base end X1 through which the material to be dispersed of the inner shaft 4 flows becomes the reference position, and the rotary container 7 starts from this reference position. Drive sources 16 and 23 are provided up to the end surface (bottom surface) on the tip side. That is, the drive mechanisms including the drive sources 16 and 23 and the drive transmission mechanism are arranged so as not to exceed the total length X2 (length in the axial direction) of the main body (rotating body) to be rotationally driven in the dispersion device 1.

However, in the present embodiment, both drive sources 16 and 23 may be arranged so as to be within the range from the lid 21 to the position X3 where the rotary container 7 can be completely separated. The position X3 is set as, for example, a position where the rotary container 7 is separated from the lid 21, the rotor 6 inside the apparatus is completely exposed, and the rotary container 7 can be moved back and forth and left and right. In other words, it is a range that facilitates maintenance of the rotor 6 and the rotary container 7, and within this range, a part of the drive sources 16 and 23 is arranged so as to protrude from the base 2 of the dispersion device 1. You may. Therefore, the drive sources 16 and 23 may be arranged in parallel at the same height in the range of the base ends X1 to X3, may be arranged vertically, or may be arranged in front of and behind the base 2. May be good. That is, the drive sources 16 and 23 can be arranged in an arbitrary layout within the range from the base end X1 to the position X3, and by extension, a drive source such as a large motor with high output can be used.

As shown in FIG. 6, a guide rail 38 and a movable base 39 are provided above the base 2. The guide rail 38 is located vertically above the axes of the inner shaft 4 and the outer shaft 5, and extends parallel to the axes. The guide rail 38 is set to a length that fits in the base 2 of the disperser 1.

The movable base 39 reciprocates along the guide rail 38. Further, the movable base 39 is provided with an engaging connecting portion 40 on the lower surface thereof. The engagement connecting portion 40 may be any one that engages the hook metal fitting 36 provided at the tip of the wire 35 in the present embodiment, and is, for example, a ring or a metal plate punched out in a circular shape. Further, the movable base 39 is provided with a stopper and a braking device so as not to fall off from the guide rail 38. Examples of the braking device include a manual brake and an electromagnetic brake in the present embodiment.

Therefore, the hook metal fittings 36 provided at both ends of the wire 35 are engaged with each of the engaging connecting portion 34 of the rotary container 7 and the engaging connecting portion 40 of the movable base 39 to direct the movable base 39 toward the tip in the axial direction. The rotary container 7 can be easily separated from the lid 21 by moving the container 7. In the present embodiment, the rotary container 7 is suspended and held by the wire 35, but the rotary container 7 may be suspended and held by something other than the wire 35.

The materials to be dispersed to be charged into the dispersion device 1 include battery materials for lithium ion secondary batteries, coating materials such as color filter pigments and antireflection agents used for panel displays, and materials for electronic components such as capacitors. Examples include organic / inorganic pigments such as paints / inks / paints, and other organic / inorganic materials. The material to be dispersed is charged from the inlet 10 of the tubular portion 8 of the dispersion device 1. This charging is continuously performed by a pump for pumping the material to be dispersed in the flow path.

Further, in the present embodiment, beads having a larger specific gravity and a diameter than the material to be dispersed are used as the media for granulation. The beads used as the granulation media depend on the type of material to be dispersed, the hardness of the particles, the initial particle size, the final particle size, the viscosity of the slurry (material to be dispersed and the solvent) to be charged, the specific gravity, and the like. Then, the diameter, specific gravity, material, etc. are appropriately selected. Examples of the material used as beads include ceramics such as zirconia, glass, and metals such as chrome steel.

Next, a round operation of dispersing the material to be dispersed by the dispersion device 1 will be described.

First, the beads are filled inside the rotary container 7, and the drive sources 16 and 23 are driven to rotate each of the inner shaft 4 and the outer shaft 5. At the same time, the rotor 6 at the tip of the inner shaft 4 and the rotary container 7 at the tip of the outer shaft 5 rotate. At this time, the rotation speeds of the drive sources 16 and 23 are adjusted so that the rotation speed of the rotor 6 is larger than the rotation speed of the rotary container 7. That is, the rotor 6 and the rotary container 7 rotate while having a relative speed difference. Therefore, at least the rotor 6 may be rotated and the rotary container 7 may be stopped.

In normal operation, a predetermined amount of the material to be dispersed is charged into the rotary container 7, and after confirming that the material to be dispersed is discharged from the discharge port 14, the inner shaft 4 and the outer shaft 5 are rotated. In addition, unlike the normal operation, the material to be dispersed may be introduced from the inlet of the supply flow path 8A after rotating the inner shaft 4 and the outer shaft 5.

As shown by the solid arrow in FIG. 3, the material to be dispersed is pumped inside the supply flow path 8A, opens the outlet 11 against the urging force of the check valve 13 at the tip, and opens the outlet 11 of the rotary container 7. It flows inside.

The material to be dispersed collides with the bottom surface of the rotary container 7 and is guided to the outer edge of the rotary container 7 by the centrifugal force accompanying the rotation of the rotor 6 and the rotary container 7, and is guided to the outer peripheral surface of the rotor 6 and the inner surface of the rotary container 7. It flows into the rotor internal space 26 through the gap S1 for dispersion processing with the wall surface. In the process of the material to be dispersed passing through the gap S1, the material to be dispersed collides with the beads and is made into fine particles (dispersion), and is provided on the stirring protrusion 28 provided on the outer peripheral surface of the rotor 6 and the inner wall surface of the rotary container 7. It is dispersed by collision with the stirring protrusion 33 and shearing.

Further, since the rotary container 7 is rotating, the centrifugal force accompanying the rotation is applied to the beads and pressed against the inner wall surface of the rotary container 7. Since the beads have a higher specific gravity than the material to be dispersed, even if the material to be dispersed becomes faster (even if the supply pressure of the material to be dispersed becomes higher), the resistance to this flow increases.

Further, a part of the beads existing in the gap S1 together with the material to be dispersed flows into the rotor internal space 26 together with the material to be dispersed which has been subjected to the dispersion treatment. However, since the rotor 6 and the screen 30 are provided on the inner shaft 4 and rotate at the same speed, sufficient centrifugal force acts on the beads, and the beads are dispersed from the rotor internal space 26 through the bead discharge opening 29. It is returned to the processing gap S1. That is, the rotor 6 and the screen 30 cooperate to form the media separation unit of the present invention.

Further, the rotation of the screen 30 does not cause clogging due to beads. Foreign matter such as bead fragments crushed during the dispersion treatment is caught by the screen 30 and does not flow into the discharge flow path 9.

The dispersion target material that flows into the rotor internal space 26 after the dispersion treatment passes through the screen 30 and is temporarily stored in the storage gap S2, but is temporarily stored in the storage gap S2, but is continuously charged into the rotary container 7 by the dispersion target material. It flows into the discharge flow path 9 from the gap S2 through the through hole 27. The material to be dispersed is discharged to the outside from the discharge flow path 9 and collected in a predetermined container or the like.

When the charging of the predetermined amount of the material to be dispersed is completed, the check valve 13 closes the outlet 11 by the urging force toward the base end of the inner shaft 4. This completes a round of distributed processing.

According to the disperser 1 having the above configuration, a rotor 6 for dispersal is provided at the tip of a concentric biaxial inner shaft 4 that rotates relatively and the axes overlap, and a rotary container 7 is provided at the tip of the outer shaft 5. Further, since the outer shaft 5 is arranged at the same position so as to surround the inner shaft 4, the position or range in which the drive transmission mechanism for rotating the inner shaft 4 and the outer shaft 5 is arranged is the rotary container 7. The positions where the drive sources 16 and 23 are arranged according to the drive transmission mechanism are also roughly determined. That is, the drive mechanism can be provided within the entire length of the main body for rotationally driving the disperser from the base end X1 of the inner shaft 4 to the end surface (bottom surface) of the rotary container 7. In other words, the drive mechanism can be housed inside the base 2 of the dispersion device 1, and the installation area can be reduced as compared with the conventional opposed biaxial type dispersion device.

Further, by providing the tubular portion 8 inside the inner shaft 4, the supply flow path 8A for guiding the material to be dispersed to the rotary container 7 and the discharge flow path for discharging the material to be dispersed to the outside from the rotary container 7 are provided inside the inner shaft 4. 9 can be provided. Therefore, the material to be dispersed can be reciprocally circulated inside the inner shaft 4, and the inlet 10 and the discharge port 14 into which the material to be dispersed is introduced are concentrated at the base end of the inner shaft 4. Therefore, it is easy to design the layout of the storage tank for storing the material to be dispersed and the transport route to the collection container for the material to be dispersed after the dispersion treatment based on this base end.

Further, the inner shaft 4 and the outer shaft 5 are provided only on one side of the rotary container 7, and the seal (for example, mechanical seal) provided between the rotary container 7 and the rotary shaft is the inner shaft 4 and the rotary container 7. Since it is only necessary to provide the seal between the parts, the number of parts of the seal can be reduced, and the design for preventing the material to be dispersed from leaking between the rotating container 7 and the rotating shaft becomes easy.

Further, since the flow path 32 for circulating the temperature-adjusting refrigerant or the like is provided inside the peripheral side wall 31 of the rotary container 7, it is possible to configure the outer peripheral surface of the rotary container 7 to be exposed to the outside. It is not necessary to immerse the rotary container in the storage container filled with the refrigerant as in the case of the opposed biaxial type disperser. Therefore, environmental pollution due to leakage of the refrigerant or the like from the storage container does not occur during maintenance for disassembling the disperser.

Further, since the rotary container 7 is separated from the outer shaft 5 and the lid 21 only by releasing the fixing of the rotary container 7 from the lid 21 integrally connected to the driven pulley 22 of the outer shaft 5, the rotor 6 can be used. It can be easily accessed and maintenance work can be performed efficiently.

Further, the material to be dispersed may generate heat during the dispersion treatment and become hot, depending on the type. However, according to the dispersion device 1 having the above configuration, the material to be dispersed after the dispersion treatment passes through the discharge flow path 9 while contacting the outer peripheral surface of the tubular portion 8 constituting the supply flow path 8A. By continuously pumping the material to be dispersed having a temperature lower than that of the material to be dispersed to the supply flow path 8A, the material to be dispersed can be cooled from the inside through the outer peripheral surface of the tubular portion 8. In other words, since the material to be dispersed is cooled from the dispersion device 1 until just before being discharged, the cooling efficiency is higher than that of the conventional device.

Next, the operation of the above-mentioned distribution device 1 will be described.

<Operation during distributed processing>
As shown by the solid arrow in FIG. 7, the solenoid valve 46 is first opened, the supply of the material to be dispersed is started from the first storage tank 41, the material to be dispersed is charged into the rotary container 7, and a predetermined amount of undispersed material is not dispersed. After confirming that the material to be dispersed is discharged from the discharge port 14, the drive sources 16 and 23 are operated to rotate the rotor 6 and the rotary container 7. By discarding the undispersed material to be dispersed discharged to the outside of the device, the inside of the device can be prepared in an environment suitable for the material to be dispersed.

At this time, as shown by the solid line arrows in FIGS. 3 and 7, the material to be dispersed is pumped through the external supply flow path 45 by the pump P1 and supplied from the inlet 10 provided on the inner shaft 4 of the dispersion device 1. It flows into road 8A. The material to be dispersed is pumped inside the supply flow path 8A, opens the outlet 11 against the urging force of the check valve 13 at the tip, and flows into the inside of the rotary container 7.

The material to be dispersed collides with the bottom surface of the rotary container 7 and is guided to the outer edge of the rotary container 7 by the centrifugal force accompanying the rotation of the rotor 6 and the rotary container 7, and is guided to the outer peripheral surface of the rotor 6 and the inner surface of the rotary container 7. It flows into the rotor internal space 26 through the gap S1 for dispersion processing with the wall surface. In the process of the material to be dispersed passing through the gap S1, the material to be dispersed is made into fine particles (dispersed) by collision between beads and rubbing (sliding) between beads, and the stirring protrusions 28 provided on the outer peripheral surface of the rotor 6 and It is dispersed by collision and shearing with the stirring protrusion 33 provided on the inner wall surface of the rotary container 7.

Further, since the rotary container 7 is rotating, the centrifugal force accompanying the rotation is applied to the beads and pressed against the inner wall surface of the rotary container 7. Since the beads have a higher specific gravity than the material to be dispersed, even if the material to be dispersed becomes faster (even if the supply pressure of the material to be dispersed becomes higher), the resistance to this flow increases.

Further, a part of the beads existing in the gap S1 together with the material to be dispersed flows into the rotor internal space 26 together with the material to be dispersed which has been subjected to the dispersion treatment. However, since the rotor 6 and the screen 30 are provided on the inner shaft 4, they are rotating at the same speed. Therefore, a sufficient centrifugal force acts on the beads, and the beads are returned from the rotor internal space 26 through the bead discharge opening 29 to the gap S1 for the dispersion treatment.

The dispersion target material that flows into the rotor internal space 26 after the dispersion treatment passes through the screen 30 and is temporarily stored in the storage gap S2, but is temporarily stored in the storage gap S2, but is continuously charged into the rotary container 7 by the dispersion target material. It flows into the discharge flow path 9 from the gap S2.

The material to be dispersed flows from the discharge flow path 9 into the external discharge flow path 47. When the device is operated, the material to be dispersed is guided to the first recovery container 42 and recovered by switching the flow path by the solenoid valve 48.

The above is a cycle of operations in the dispersion device 1 from the supply of the material to be dispersed to the recovery after processing, and this operation is repeated until the dispersion processing of a predetermined amount of the material to be dispersed is completed.

<Additional notes>
The present invention further discloses the following inventions.
That is, a rotor for dispersion is provided at the tip of the inner shaft of the two concentric shafts that rotate relatively and the axes overlap, and the rotor is attached to the tip of the tubular outer shaft that surrounds the inner shaft from the outside. A disperser equipped with a rotating container to store
A drive mechanism for rotating at least the inner shaft of the inner shaft and the outer shaft is provided.
The inner shaft has a supply flow path that allows a material to be dispersed that is supplied from the outside to flow into the inside thereof and guides the material to the rotary container.
It has a discharge flow path that allows the material to be dispersed, which has been dispersed in the rotary container, to flow in and guide it to the outside.
The drive mechanism includes at least one drive source and
A drive transmission mechanism configured to transmit a rotational driving force for rotating the rotating body from the at least one driving source to a rotating body rotating about the axis is provided.
The rotating body includes at least the inner shaft and the outer shaft.
The at least one drive source is characterized in that it is provided between the base end through which the material to be dispersed of the inner shaft flows in and the end surface (bottom surface) on the tip end side of the rotary container provided at the tip end of the outer shaft. Dispersing device.

According to this configuration, since the axes of the inner shaft and the outer shaft are arranged so as to overlap each other, the installation area can be reduced as compared with the conventional two-axis type disperser. Further, the drive transmission mechanism is connected to a rotating body such as an inner shaft and an outer shaft. That is, since the concentric biaxial outer and inner axes are arranged on one side of the rotary container, the drive transmission mechanism and each axis are compared with the distance between the drive sources in the conventional opposed biaxial type disperser. The distance between the connectable ranges of can be shortened.

Further, once the position or range for connecting the drive transmission mechanism to each axis is determined, the position and range in which the drive source is arranged can be roughly determined from the size of the drive source according to the drive transmission mechanism. For example, if the disperser tries to set the position of the end that can be connected to the drive transmission mechanism as a reference, the base end through which the material to be dispersed on the inner shaft flows becomes the reference position, and the end face on the tip side of the rotary container from this reference position. A drive source can be provided up to (bottomed surface). That is, the drive mechanism including the drive source and the drive transmission mechanism is arranged so as not to exceed the total length (length in the axial direction) of the main body of the dispersion device to be rotationally driven. Therefore, the drive source and the drive transmission mechanism can be housed and arranged within the installation range of the main body of the disperser, and the individual rotating shafts arranged with the rotating container sandwiched like the conventional opposed biaxial type disperser are individually arranged. Since it is not necessary to provide a drive mechanism in the disperser, the installation area of the disperser can be significantly reduced as compared with the conventional opposed biaxial type disperser. The drive transmission mechanism engages with, for example, an engaging portion (for example, a driven pulley 15) provided on a surface exposed to the outside of the inner shaft. When the inner shaft rotates, the rotor rotates together with the inner shaft. The drive transmission mechanism engages, for example, with an engaging portion (for example, a driven pulley 22) provided on a surface exposed to the outside of the outer shaft. The drive transmission mechanism may engage with an engaging portion provided on a surface exposed to the outside of the rotary container. When either the outer shaft or the rotary container rotates, the other also rotates.

In the above configuration, the drive transmission mechanism includes driven pulleys provided on the inner shaft and the outer shaft, respectively.
The drive pulley provided in the drive source and
A dispersion device including the driven pulley and a transmission belt (chain belt) around which the drive pulley is wound.

According to this configuration, in the drive transmission mechanism, a transmission belt is wound around a driven pulley provided on each of the inner shaft and the outer shaft and the drive pulley of the drive source. That is, the drive mechanism is arranged in a direction orthogonal to the inner shaft and the outer shaft. Along with this arrangement, the drive source provided on the other end side opposite to each shaft side of the drive transmission mechanism is arranged so as to be adjacent to the main body of the dispersion device including the inner shaft, the outer shaft, the rotor and the rotary container. That is, the drive mechanism can be arranged within the range of the total length of the main body of the disperser.

In the above configuration, the rotor and the rotary container are horizontally cantilevered and supported by a base that holds the inner shaft and the outer shaft via bearings.
A movable portion that moves along a guide parallel to the inner shaft and the outer shaft provided above the base is provided.
It is preferable that the movable portion and the rotary container are each provided with a connecting portion for connecting to each other.

According to this configuration, the disperser is a horizontally installed type, and by connecting the rotary container and the movable portion to each other, only the rotary container can be easily moved by simply moving the movable portion horizontally. That is, the internal maintenance of the dispersion device becomes easy.

Although the preferred embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and various design changes can be made as long as it is described in the claims.

(1) In the above-mentioned dispersion device 1, each of the inner shaft 4 and the outer shaft 5 is provided with a drive mechanism, but the inner shaft 4 and the outer shaft 5 may be rotated by one drive mechanism. .. For example, as shown in FIG. 8, two drive pulleys 17 and 24 are provided on the rotation shaft of the drive source 23. By driving and connecting the driven pulley 15 and the drive pulley 17 of the inner shaft 4 with the chain belt 18 and connecting the driven pulley 22 and the drive pulley 24 of the outer shaft 5 with the chain belt 25, the inner shaft 4 and the outer shaft 5 are connected at the same time. Can be rotated. The relative speeds of the rotor 6 and the rotary container 7 can be changed by appropriately changing the outer diameters of the driven pulleys 15 and 22 and the drive pulleys 17 and 24.

According to this configuration, since the inner shaft 4 and the outer shaft 5 are rotated by one drive mechanism, the dispersion device 1 can be further miniaturized.

(2) In the above-mentioned dispersion device 1, the supply flow path 8A of the inner shaft 4 may be configured to be rotatable. For example, as shown in FIG. 9, the shaft length of the tubular portion 8 is made longer than that of the inner shaft 4, and a driven pulley 52 is provided at the tip thereof. The driven pulley 52 is configured to transmit power from the drive source 16 via a chain belt 54 to a drive pulley 53 provided at the tip of the rotation shaft of the drive source 16, for example. At that time, the diameters of the driven pulleys 15 and 52 are appropriately set in order to allow the inner shaft 4 and the supply flow path 8A to have a relative difference in rotational speed.

According to this configuration, the material to be dispersed is continuously dispersed inside the supply flow path 8A and the inside of the discharge flow path 9. That is, since the dispersion processing is performed on the material to be dispersed being conveyed along the transfer path, the processing time can be shortened as compared with the case where the dispersion processing is performed only in the rotary container 7.

When the material to be dispersed, which is charged from the supply flow path 8A, passes through the tubular portion 8 even when the tubular portion 8 rotates integrally at the same speed as the inner shaft 4 as in each of the above embodiments. The flow velocity is increased, and the pressure loss when flowing into the rotary container 7 from the supply flow path 8A can be reduced. In particular, when the tubular portion 8 is rotated, the pressure loss can be reduced more remarkably. Further, the flow velocity of the material to be dispersed passing through the discharge flow path 9 is also increased by the rotation of the tubular portion 8 and / or the rotation of the inner shaft 4. Therefore, the dispersion target material can be efficiently circulated in the dispersion device 1. It should be noted that the above-mentioned pressure loss is reduced regardless of whether the rotation drive of the inner shaft 4 and the tubular portion 8 is rotated at different speeds to have a relative speed difference or at the same speed. can do. Here, the relative speed difference between the rotation speeds of the inner shaft 4 and the tubular portion 8 includes the case where the rotation of the tubular portion 8 is stopped.

In the present embodiment, the same drive source 16 is used for the rotation of the inner shaft 4 and the tubular portion 8, but they may be individually rotated by using a separate drive source and drive transmission mechanism. .. According to this configuration, the relative speed difference of the rotation speed can be arbitrarily set and changed while synchronizing the rotation of the inner shaft 4 and the tubular portion 8.

(3) In the dispersion device 1 of each of the above embodiments, the discharge flow path 9 of the inner shaft 4 may be formed inside the peripheral side wall of the inner shaft 4. That is, as shown in FIG. 10, an annular bottom groove 8C is formed from the base end to the tip of the peripheral side wall of the inner shaft 4, and a lateral hole communicating the bottom groove 8C and the rotor internal space 26 is formed inside. The discharge flow path 9 is formed by forming the shaft 4. According to this configuration, the same operation / effect as that of the dispersion device 1 of the above-described embodiment is obtained. Further, according to this configuration, since it is not necessary to separately arrange the supply flow path 8A formed of the tubular portion 8 inside the inner shaft 4, the number of parts can be reduced and the configuration can be simplified.

(4) In each of the above embodiments, the tubular portion 8 is a cylinder, but it may be a polygonal cylinder. In this case, at least one of the outer shape and the inner shape of the tubular portion 8 may be polygonal. In this configuration, for example, when the outer shape and the inner shape are polygonal, the materials to be dispersed are efficiently dispersed and mixed by the corner portions formed on the outer and inner sides of the tubular portion 8. That is, since the material to be dispersed is dispersed and mixed in the process of passing through the supply flow path 8A and the discharge flow path 9, the production efficiency is improved.

(5) In each of the above embodiments, the tubular portion 8 may have a spiral groove from the base end to the tip end on at least one of the outer periphery or the inner wall thereof. That is, the tubular portion 8 functions as a screw. According to this configuration, the dispersion efficiency of the material to be dispersed is further improved.

(6) Although the dispersion device 1 of each of the above embodiments has a check valve 13 at the outlet 11 of the supply flow path 8A, it may be provided inside the supply flow path 8A. Alternatively, the solenoid valve 46 of the external supply flow path 45 (see FIG. 7) that communicates with the supply flow path 8A without using the check valve 13 may perform the function. Regardless of the configuration, it is possible to prevent backflow to the storage tank for storing the material to be dispersed.

1 Disperser 2 Base 4 Inner shaft 5 Outer shaft 6 Rotor 7 Rotating container 8 Cylindrical part 8A Supply flow path 9 Discharge flow path 13 Check valve 15 Driven pulley (for inner shaft)
16 Drive source (for inner shaft)
17 Drive pulley (for inner shaft)
18 Chain belt (for inner shaft)
22 Driven pulley (for outer shaft)
23 Drive source (for outer shaft)
24 Drive pulley (for outer shaft)
25 Chain belt (for outer shaft)
26 Rotor internal space 27 Through hole 30 Screen 50 Discharge

Claims (6)

A rotor for dispersion is provided at the tip of the inner shaft of the two concentric shafts that rotate relatively and the axes overlap, and the rotor is housed at the tip of the tubular outer shaft that surrounds the inner shaft from the outside. A disperser equipped with a rotating container
A drive mechanism for rotating at least the inner shaft of the inner shaft and the outer shaft is provided.
The inner shaft includes a supply flow path for flowing a material to be dispersed supplied from the outside into the inside of the inner shaft and guiding the material to the rotary container.
It has a discharge flow path that allows the material to be dispersed, which has been dispersed in the rotary container, to flow in and guide the material to the outside.
The rotor has a bottomed tubular shape and has a bottomed tubular shape.
The outer shaft has a lid that is fixedly connected to the tip end side of the outer shaft .
The rotary container has a bottomed tubular shape for accommodating the rotor so that the outer peripheral surface of the rotor and the inner peripheral surface of the rotary container face each other with a gap in the radial direction of the rotor. The rotor can be attached to and detached from the lid on the tip end side of the outer shaft. A disperser characterized in that the outer peripheral surface is configured to be exposed at the tip of the outer shaft. One of the supply flow path and the discharge flow path is formed inside the tubular portion provided inside the inner shaft, and the other flow path is formed outside the tubular portion. The disperser according to claim 1. The dispersion device according to claim 2, wherein the tubular portion is formed of a member separate from the inner shaft and is rotated independently of the inner shaft by a drive mechanism. The rotor forms a gap for dispersion processing between the outer peripheral surface of the rotor and the inner wall surface of the rotary container, has a media separation portion inside the rotor, and has the inside of the rotor on the outer peripheral surface of the rotor. possess an opening for communicating the gap and,
The dispersion rotor guides the dispersion target material that has passed through the dispersion processing gap into the inside of the rotor, separates the media mixed in the dispersion target material by the media separation unit, and separates the media. The dispersion device according to any one of claims 1 to 3, wherein the material to be dispersed is guided to the discharge flow path while returning the material from the opening to the gap. The dispersion device according to any one of claims 1 to 4, wherein the rotary container has a flow path for circulating a liquid for adjusting the internal temperature inside the outer peripheral wall. The drive mechanism includes at least one drive source and
A drive transmission mechanism configured to transmit a rotational driving force for rotating the rotating body from the at least one driving source to a rotating body rotating about the axis is provided.
The rotating body includes at least the inner shaft and the outer shaft.
Claim 1 is characterized in that the at least one drive source is provided between a base end into which a material to be dispersed of the inner shaft flows in and an end surface on the tip end side of the rotary container provided at the tip end of the outer shaft. The disperser according to any one of claims 5.

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