JP2023086144A - Disperser - Google Patents

Abstract

To provide a media type dispenser capable of processing a dispensed object at a high-speed while uniformly maintaining a distribution of media in a container.SOLUTION: A dispenser 1 is a lateral dispenser. The dispenser 1 is equipped with a container 2 and a rotary shaft 3. A plurality of dispersing rotors 4 and a plurality of dispersing discs 20 are attached to the rotary shaft 3. The dispersing rotors 4 has a truncated conical shape having a tapered shape increasing an outer diameter from a downstream toward an upstream. The dispersing disc 20 has a plurality of projection pieces 21 on an outer periphery, and a plurality of through-holes from a surface on the upstream side toward a surface on the downstream side. The dispenser 1 alternately attaches the dispersing rotors 4 and the dispersing discs 20 to the rotary shaft 3 so as to sandwich the upstream side and the downstream side of the dispersing rollers 4 with the dispersing discs 20.SELECTED DRAWING: Figure 1

Description

In the process of manufacturing paints, inks, pharmaceuticals, cosmetics, foodstuffs, batteries, electronic components, and the like, the present invention can be applied while supplying an object to be dispersed and mixing it with media that has already been put into a container. It relates to a media-type disperser for dispersing or pulverizing.

As a conventional dispersing machine, a media-type dispersing machine is known that disperses, agitates, or pulverizes an object to be dispersed using media (for example, beads of glass, zirconia, etc.). For example, a disperser equips a rotating shaft in a container with a plurality of discs for dispersing at equal intervals. The disk has a plurality of protruding pieces on its outer circumference and a through hole penetrating in the thickness direction. The through-hole obliquely penetrates the disk in the thickness direction from the upstream side to the downstream side in the same direction as the disk rotation direction. With this configuration, the conventional disperser is configured to return part of the object to be dispersed and the media flowing downstream from between the disc and the container from the downstream surface of the through-hole to the upstream surface ( See Patent Document 1).

Patent No. 6634493

However, the dispersing machine described in Patent Document 1 has the following problems. First, since the force to return the media to the upstream side surface of the disk through the through-holes of the disk is slightly stronger than the flow of the object to be dispersed passing through the through-holes, Only the media near the opening of the through hole on the side surface can be returned to the upstream surface. Therefore, the media cannot be evenly distributed in the container unless the gap between the discs is narrowed and the media are continuously returned to the upstream side. Therefore, it is conceivable to narrow the gap between the discs. If the gap between the discs is narrowed, the frictional heat generated by the continuous shearing of the object to be dispersed by adjacent disks accumulates in the narrow gap between the container and the disk, causing a problem of altering the physical properties of the object to be dispersed. In order to solve this problem, it is necessary to ensure sufficient space between the discs.

In addition, when the supply amount of the unprocessed material to be dispersed into the container per short period of time is increased in order to process a large amount of material to be dispersed at high speed, the force for pumping the material to be dispersed increases. That is, the flow of the object to be dispersed passing through the through-holes becomes stronger than the force that returns the media to the upstream side through the through-holes. Since the motion is hindered by the stagnation, the shear (shear speed) due to the speed difference between the media and the action of atomization (dispersion) of the dispersed object due to the collision between the media cannot be obtained. That is, there is a trade-off relationship between an increase in the supply amount of the object to be dispersed and the processing capacity, and there is an inconvenience that the production efficiency cannot be improved.

SUMMARY OF THE INVENTION The present invention has been made to solve such problems, and an object of the present invention is to provide a dispersing machine capable of processing a large amount of objects to be dispersed at high speed while maintaining uniform distribution of media in a container. .

The present invention provides a dispersing machine as follows.

That is, it is a media-type dispersing machine that disperses together with the media while feeding the media in the container and the object to be dispersed, which is introduced from the charging section provided on the upstream side of the container, toward the discharging section provided on the downstream side,
a plurality of truncated cone-shaped distributed rotors having a taper with an outer diameter that increases from the downstream side toward the upstream side;
one or more dispersing discs having a plurality of projecting pieces on the outer periphery and a plurality of through-holes directed from the upstream surface to the downstream surface;
a rotating shaft on which the dispersion rotor and the dispersion disk are rotatably mounted;
A dispersing machine characterized in that the dispersing rotors and the dispersing disks are alternately attached to the rotating shaft so that the dispersing disks are positioned between the upstream side and the downstream side of the plurality of dispersing rotors. .

According to this configuration, the truncated cone-shaped dispersion rotor has a higher peripheral speed at the end with a larger outer diameter than at the end with a smaller outer diameter. Therefore, apart from the centrifugal force acting on the media due to the rotation of the dispersing rotor when the object to be dispersed is dispersed, there is a force returning the media dispersing around each tapered dispersing rotor to the upstream side (a component of the centrifugal force ) acts continuously. That is, the dispersing machine having the above configuration has a plurality of dispersing rotors connected to the rotating shaft, unlike the conventional dispersing machine that intermittently applies a force to the media to return the media to the upstream side only with dispersing disks arranged at regular intervals. continuously applies a force to return the media to the upstream side.

In addition, due to the synergistic effect of the returning force of the dispersing rotor, the centrifugal force accompanying the rotation of the dispersing rotor, and the pressing of the object to be dispersed that has passed through the through-holes of the dispersing disk from upstream to downstream, the dispersing medium has a diameter larger than that of the dispersing rotor. The media gathers on the protrusions on the outer circumference of the disk. Therefore, while the object to be dispersed is being agitated by the rotation of the dispersing disk, the media collide with the projecting pieces of the dispersing disk and actively move. It is possible to efficiently obtain the effect of microparticulation.

Since atomization is maintained while the object to be dispersed is stirred, the dispersion efficiency is improved, and uneven distribution of the media in the discharge section can be suppressed, so the object to be dispersed after treatment can be smoothly discharged from the discharge port. be able to. In other words, the disperser enables high-speed processing of a large amount of objects to be dispersed while maintaining a uniform distribution of media.

Furthermore, since the truncated cone-shaped dispersing rotor can increase the distance in the axial direction of the rotating shaft compared to a thin disk, the gap between the container and the dispersing rotor is the smallest, and each dispersing rotor exerts a shearing action. The distance between the large diameter ends of the can be sufficiently enlarged. Therefore, since frictional heat generated by shearing does not accumulate in the container, it is possible to avoid deterioration of the physical properties of the object to be dispersed due to the influence of heat.

In the above configuration, the distributing rotor has an outer peripheral surface, and the outer peripheral surface may include a rough surface, or a plurality of grooves are formed along the outer peripheral surface to may extend in the direction of

With this configuration, the frictional resistance between the outer peripheral surface of the dispersing rotor and the object to be dispersed increases, so the stirring efficiency increases. In particular, due to the interaction of the centrifugal force acting on the media due to the rotation of the dispersing rotor and the force returning to the upstream side, the media move to the large-diameter portion of the dispersing rotor. Furthermore, the media moves from the large-diameter portion of the dispersing rotor to the projecting piece on the outer periphery of the dispersing disk, which is the area where the gap is the narrowest in the container. Therefore, the object to be dispersed is efficiently subjected to shearing and atomization in the peripheral region of the dispersion disc.

In the above configuration, it is preferable that each of the plurality of grooves and the plurality of through holes of the distribution disk communicate with each other on the upstream side of the distribution rotor.

According to this configuration, the object to be dispersed that has passed through the through-holes of the dispersion disk flows into the grooves of the dispersion rotor, so that the rotation resistance of the dispersion rotor increases and is strongly agitated. That is, the centrifugal force is more likely to act on the object to be dispersed and the media, and the media can be collected more reliably toward the projecting piece of the dispersion disk. Note that the term “communication” means that, when viewed from the axial direction of the rotating shaft, the downstream opening of the through-hole of the dispersion disk is formed on the outer peripheral surface of the dispersion rotor in a state in which it is in contact with the upstream end surface of the dispersion rotor. means at least partially overlapping with the groove that was created.

Further, in the above configuration, the through-hole may obliquely penetrate in the same direction as the rotation direction of the dispersion disk from the upstream surface toward the downstream surface. Alternatively, the through hole may be tapered such that the outer diameter decreases from the upstream surface toward the downstream surface.

According to this configuration, a portion of the media that has moved upstream along the outer periphery as the distribution rotor rotates passes through the through-hole of the distribution disk. Therefore, it is possible to more reliably prevent the media from being unevenly distributed downstream and clogging the ejection section, and the media can be returned to the outer peripheral area of each dispersion disk.

The present invention provides a dispersing machine capable of processing objects to be dispersed at high speed while maintaining a uniform distribution of media in a container.

BRIEF DESCRIPTION OF THE DRAWINGS It is sectional drawing which shows schematic structure of the dispersing machine which concerns on embodiment of this invention. FIG. 4 is a perspective view from upstream of the dispersing rotor; FIG. 4 is a perspective view from downstream of the dispersing rotor; It is a front view of a dispersion disk. FIG. 4 is a schematic diagram showing the flow of objects to be dispersed and the movement of media during dispersion processing in the dispersion machine of the first embodiment; FIG. 5 is a cross-sectional view showing a schematic configuration of a dispersing machine according to a second embodiment of the present invention; 1 is a front view of a centrifugal rotor; FIG. Fig. 2 is a rear view of a centrifuge rotor; FIG. 4 is a perspective view from upstream of the centrifugal rotor; FIG. 4 is a perspective view from downstream of the centrifuge rotor; FIG. 10 is a schematic diagram showing the flow of objects to be dispersed and the movement of media during dispersion processing in the disperser of the second embodiment; It is a sectional view showing a schematic structure of a dispersion machine of a modification. It is a front view of a stirring rotor. It is a perspective view from the front of the centrifugal rotor of a modification. It is a front view of a centrifugal rotor of a modification.

<First Embodiment>
An embodiment of a media-type dispersing machine according to the present invention will be described in detail below with reference to the drawings. In the dispersing machine of the present embodiment, a dispersing machine (for example, a bead mill) that mixes and disperses an object to be dispersed using, for example, zirconia beads as a medium will be described. It can also be used as a pulverizer for finely crushing the target material. Beads are an example of media, and are appropriately selected according to the type of object to be dispersed, particle hardness, particle size, viscosity and specific gravity of the solvent (raw material paste) to be added, and the like.

The dispersing machine 1 is a horizontal dispersing machine, as shown in FIG. This dispersing machine 1 comprises a container 2 and a rotating shaft 3, to which a plurality of dispersing rotors 4 and a plurality of dispersing discs 20 are attached.

The container 2 is a substantially closed cylindrical tank. One end face of the container 2 has an input part 5 into which the object to be dispersed is placed, and the other end face opposite to this end face has a discharge part 6 .

The input part 5 is configured by connecting a supply pipe 7 that communicates with the inside of the container. The supply pipe 7 is connected to an upstream side thereof, such as a pump for pumping the object to be dispersed.

The discharge section 6 is composed of a gap separator 8 and a discharge pipe 9 . The gap separator 8 separates the media contained in the treated dispersion object that has been pumped inside the container 2 and reached the most downstream, and objects other than the treated dispersion object (for example, media fragments, etc.). belongs to. That is, the gap separator 8 is composed of a rotating rotor 10 provided on the rotating shaft 3 and a fixed stator 11 surrounding the outer periphery of the rotating rotor 10 . By adjusting the gap between the rotating rotor 10 and the fixed stator 11, media and the like are prevented from passing through the gap. Note that the gap separator 8 is an example of the present embodiment, and may be any device as long as it can separate the media and the object to be dispersed. For example, it may be a screen mechanism.

The discharge pipe 9 discharges the material to be dispersed separated by the gap separator 8 to the outside of the disperser 1 . In this embodiment, it is composed of a mechanical seal 12 that rotatably supports the rotating shaft 3 and a fixed wall 13 that fixes the mechanical seal 12 .

Note that the container 2 has a jacket 14 on its outer periphery. The jacket 14 adjusts the temperature inside the container 2 by supplying and circulating a coolant, hot water, or the like in a flow path formed inside the jacket 14 .

The rotary shaft 3 is inserted through the container 2 from the discharge section side through the mechanical seal 12 and extends to the input section side. That is, the rotary shaft 3 is cantilevered on the discharge section side. Further, the rotating shaft 3 is directly or indirectly connected to a drive source such as a motor (not shown) on the base end side, and its rotation is controlled via a controller.

The dispersing rotor 4 has a truncated cone shape, as shown in FIGS. A plurality of grooves 15 are formed on the outer peripheral surface of the dispersing rotor 4 . The groove 15 extends from upstream to downstream on the outer peripheral surface. Furthermore, the grooves 15 are formed on the outer circumference of the dispersion rotor 4 at regular intervals. Each of the plurality of dispersing rotors 4 has an end portion with a large outer diameter directed upstream, and when the dispersing rotors 4 are attached to the rotating shaft 3 in series, the dispersing rotor 4 on the upstream side has a smaller outer diameter than the distributing rotor 4 on the downstream side. The large outer diameter of the dispersing rotor 4 is configured to be large. A through hole 16 for attaching to the rotary shaft 3 is provided in the center of the dispersion rotor 4 .

As shown in FIG. 4, the dispersing disk 20 has a larger diameter than the outer diameter end of the dispersing rotor 4 and has a plurality of projecting pieces 21 on the outer circumference.

The projecting piece 21 has a substantially trapezoidal shape extending radially outward. The projecting piece 21 of this embodiment includes a first side 21a extending obliquely in the opposite direction to the rotation direction R of the dispersion disk 20, a second side 21b extending in the circumferential direction from the first side 21a, and a second side 21b extending from the second side 21b. It is composed of a third side 21 c extending toward the center of the dispersion disk 20 . Also, the first side 21a and the second side 21b are gently curved and smoothly continuous. Moreover, as for the adjacent projecting pieces 21, the third side 21c of one projecting piece 21 and the first side 21a of the other projecting piece 21 are smoothly continuous.

Further, through-holes 22 are formed in the dispersing disk 20 at positions slightly displaced from the projecting pieces 21 toward the center of the disk.

The through-holes 22 are holes for passing media and dispersion objects. The through-holes 22 of the present embodiment obliquely penetrate in the same direction as the rotation direction R of the dispersion disk 20 from the upstream surface to the downstream surface of the dispersion disk 20 . Further, each of the openings of the through holes 22 on the downstream side surface of the dispersing disk 20 is in contact with the end surface of the dispersing rotor 4 having a large outer diameter, and the plurality of grooves 15 formed on the outer peripheral surface of the dispersing rotor 4 are in contact with each other. overlap with each other. That is, the plurality of grooves 15 and the plurality of through holes 22 of the distribution disk 20 are configured to communicate with each other on the upstream side of the distribution rotor 4 .

A through hole 23 is formed in the center of the dispersing disk 20 for attachment to the rotating shaft 3 .

<Description of operation>
Next, the operation of the dispersing machine 1 having the above configuration will be described.

An object to be dispersed is started to be introduced from the supply pipe 7 into the container 2 into which the medium has been introduced in advance. The object to be dispersed, which is pumped downstream by the pump, is agitated and dispersed by the rotation of the plurality of dispersing rotors 4 and the plurality of dispersing discs 20 in the process of flowing downstream. At this time, as shown in FIG. 5 , the object to be dispersed passes through a large flow (hereinafter referred to as “main stream”) along the inner peripheral wall of the container 2 and the through holes 22 of the dispersing disk 20 . It consists of a small stream (hereinafter appropriately referred to as a "side stream") that Here, the flow velocity of the dispersed object is faster in the main stream than in the side stream.

In this embodiment, due to the cooperation of the dispersing rotor 4 and the dispersing discs 20 during the dispersing process, the area between the inner peripheral wall of the container 2 and the outer circumference of each dispersing disc 20 in the main flow (hereinafter referred to as the "dispersion area" as appropriate) ), media M are uniformly distributed.

First, since each of the dispersing rotors 4 smaller in outer diameter than the dispersing disk 20 has a tapered outer circumference that increases in outer diameter toward the loading section side, the outer diameter Circumferential speed gradually increases toward the end with a large . At this time, the centrifugal force acting on the objects to be dispersed and the media M due to the frictional resistance with the grooves 15 during the rotation of the dispersion rotor 4 continuously acts between the adjacent dispersion disks 20 .

In addition, apart from the centrifugal force, a force (component of centrifugal force) to return the media M existing around each tapered dispersion rotor 4 to the upstream side due to the difference in peripheral speed generated on the outer periphery of the tapered dispersion rotor 4 acts continuously. In addition, the media M existing between the adjacent dispersing disks 20 moves upstream against the side flow of the object to be dispersed passing through the through-holes 22 of the dispersing disks 20 with a slight force. The accompanying centrifugal force draws most of it in rotation to the upstream distribution area where the inner peripheral wall of the container 2 and the outer diameter of each dispersing rotor 4 are the largest. Due to the movement of the media M between the adjacent dispersion disks 20, the media M continue to rotate while spreading radially from the dispersion disks 20 toward the inner peripheral wall of the container 2 in each dispersion area. That is, the media M are uniformly distributed in each distributed area.

While most of the media M move to the dispersion area, a small number of the media M pass through the through-holes 22 of the dispersion disk 20 and are returned to the upstream side.

Therefore, only the material to be dispersed flows downstream and is discharged from the discharge pipe 9 via the gap separator 8 .

According to the dispersing machine 1 configured as described above, the cooperation of the dispersing rotor 4 and the dispersing disk 20 continuously generates a force to return the media M to the upstream side. The media M can be moved to the dispersion area on the outer peripheral side of each dispersion disk 20 without disturbing the main flow, and distributed processing of the objects to be dispersed can be continuously performed while the media M are uniformly distributed.

Furthermore, since the dispersing rotor 4 is provided between the dispersing disks 20 adjacent to each other, the distance between the dispersing disks is increased. Therefore, since the frictional heat generated when the object to be dispersed is sheared by the dispersing disk 20 is efficiently dispersed, deterioration of the physical properties of the object to be dispersed due to the frictional heat can be suppressed.

<Second embodiment>
In addition to the configuration of the first embodiment, the present embodiment has a configuration in which a centrifugal rotor is provided on the rotation shaft so as to face the discharge section (see FIG. 6). Therefore, the different configurations will be described in detail, and the same reference numerals will be given to the same configurations as in the first embodiment.

As shown in FIGS. 6 to 10, the centrifugal rotor 30 guides the object to be dispersed from the center to the most downstream side of the container end face, and part of the object to be dispersed that has reached the most downstream end face and inner peripheral wall of the container 2. It is configured to return to the upstream side along. The centrifugal rotor 30 includes a large-diameter portion 32 having an outer diameter larger than that of the rotor 31 at one end on the discharge portion side of the cylindrical rotor 31 and an outer peripheral portion surrounding the rotor 31 on the outer peripheral side of the large-diameter portion 32. 33 , and a through hole 34 passing through the large-diameter portion 32 in the thickness direction between the rotor 31 and the surrounding portion 33 .

The rotor 31 is cylindrical and has a diameter that partially covers the through hole 22 formed in the dispersion disk 20 . That is, the rotor 31 is formed with a plurality of grooves extending from upstream to downstream along the outer peripheral surface.

The grooves 35 are formed on the outer peripheral surface of the rotor 31 at the same intervals as the through holes 22 of the dispersion disk 20 so as to communicate with the through holes 22 . Further, the groove 35 is formed from the dispersing disk 20 to the front of the later-described stirring block 33A.

The large-diameter portion 32 has an upstream surface facing the downstream surface of the dispersing disk 20 with the rotor 31 interposed therebetween, and a downstream surface of the large-diameter portion 32 facing the end surface of the container 2 on the discharge portion side. is configured to That is, the outer diameter of the large diameter portion 32 is substantially the same as the outer diameter of the dispersing disk 20 , and the gap between the inner peripheral wall of the container 2 and the large diameter portion 32 is substantially the same as the gap between the inner peripheral wall of the container 2 and the dispersing disk 20 . are the same.

The large-diameter portion 32 includes a flat portion 32A having the same diameter as the rotor 31 and an inclined portion 32B slightly inclined upstream from the flat portion 32A toward the outer circumference. At the center of the downstream surface of the large-diameter portion 32, there is formed a recess 32C into which the tip of the rotary rotor 10 of the gap separator 8 is fitted and connected. Further, a through hole for attaching to the rotating shaft 3 is formed in the center of the recess 32C.

The inclination angle of the inclined portion 32B is the same as the inclination angle of the end surface of the container 2, or is appropriately adjusted so that the gap between the end surface of the container 2 and the inclined portion 32B gradually widens from the rotating shaft 3 toward the inner peripheral wall of the container 2. set.

A ring-shaped groove 36 having a diameter surrounding the outer circumference of the rotor 31 is formed in the thickness direction between the flat portion 32A and the inclined portion 32B.

Small grooves 37 are formed at equal intervals in the inclined portion 32B so as to communicate with the ring-shaped groove 36 formed in the plane portion 32A and the small grooves 38 formed between adjacent surrounding portions 33 .

As shown in FIG. 9, the surrounding part 33 is composed of a plurality of agitating blocks 33A protruding upstream from an upstream surface opposite to the inclined part 32B (downstream surface). That is, as shown in FIGS. 7 to 9, the stirring blocks 33A are provided at equal intervals on the upstream side surface of the inclined portion 32B and have a substantially fan shape. A large groove 39 is formed on the outer surface of the stirring block 33A. Furthermore, the stirring block 33A has a tapered inner surface facing the rotor 31 . That is, the stirring block 33A has a wide gap with the rotor 31 on the upstream side and narrows toward the downstream side.

The through hole 34 is for sending out the object to be dispersed toward the discharge portion 6 , and is located between the rotor 31 of the large diameter portion 32 and the outer peripheral portion 33 in the radial direction of the large diameter portion 32 . 32 penetrates in the thickness direction. Further, the through-hole 34 communicates with a ring-shaped groove 36 formed in the downstream surface of the large-diameter portion 32 . Although the through-hole 34 is an arcuate long hole in the present embodiment, the shape and size of the through-hole 34 are not limited to this shape, and can be appropriately changed to an elliptical shape, a circular shape, or the like.

<Description of operation>
Next, the operation of the dispersing machine 1 having the above configuration will be described.

An object to be dispersed is started to be introduced from the supply pipe 7 into the container 2 into which the medium has been introduced in advance. The object to be dispersed, which is pumped downstream by the pump, is agitated and dispersed by the rotation of the plurality of dispersing rotors 4 and the plurality of dispersing discs 20 in the process of flowing downstream. At this time, as shown in FIG. 11 , the object to be dispersed passes through a large flow (hereinafter referred to as “main flow”) along the inner peripheral wall of the container 2 and the through holes 22 of the dispersing disk 20 . It consists of a small stream (hereinafter appropriately referred to as a "side stream") that Here, the flow velocity of the dispersed object is faster in the main stream than in the side stream.

In this embodiment, due to the cooperation of the dispersing rotor 4 and the dispersing discs 20 during the dispersing process, the area between the inner peripheral wall of the container 2 and the outer circumference of each dispersing disc 20 in the main flow (hereinafter referred to as the "dispersion area" as appropriate) ), media M are uniformly distributed.

First, since each of the dispersing rotors 4 smaller in outer diameter than the dispersing disk 20 has a tapered outer circumference that increases in outer diameter toward the loading section side, the outer diameter Circumferential speed gradually increases toward the end with a large . At this time, the centrifugal force acting on the objects to be dispersed and the media M due to the frictional resistance with the grooves 15 during the rotation of the dispersion rotor 4 continuously acts between the adjacent dispersion disks 20 .

Therefore, apart from the centrifugal force, a force (a component force of the centrifugal force) returns the media M existing around each tapered dispersing rotor 4 to the upstream side due to the difference in peripheral speed generated on the outer periphery of the tapered distributing rotor 4. acts continuously. In addition, the media M existing between the adjacent dispersing disks 20 moves upstream against the side flow of the object to be dispersed passing through the through-holes 22 of the dispersing disks 20 with a slight force. The accompanying centrifugal force draws most of it in rotation to the upstream distribution area where the inner peripheral wall of the container 2 and the outer diameter of each dispersing rotor 4 are the largest. Due to the movement of the media M between the adjacent dispersion disks 20, the media M continue to rotate while spreading radially from the dispersion disks 20 toward the inner peripheral wall of the container 2 in each dispersion area. That is, the media M are uniformly distributed in each distributed area.

When the object to be dispersed forming the main stream reaches the dispersing disk 20 rotating together in contact with the upstream end face of the centrifugal rotor 30, the course is changed from the inner peripheral wall side of the container 2 to the rotating shaft side, and dispersed. It passes through the through holes 22 of the disk 20 . That is, the centrifugal rotor 30 rotates to generate an agitated flow returning upstream along the end surface and inner peripheral wall of the container 2 from the discharge part side, and dispersing the flow to pass between the dispersing disk 20 and the inner peripheral wall of the container 2 . The object to be dispersed is prevented from entering from between the container 2 and the dispersing disk 20 by causing the agitated flow to collide with the main stream of the object. That is, the flow of the main stream is changed by the impingement of the agitated stream.

The agitated flow that collides with the main stream of the object to be dispersed is a mixture of the agitated flow generated by the large-diameter portion 32 and the surrounding portion 33 of the centrifugal rotor 30 and the agitated flow generated by the cylindrical rotor 31 .

The stirring flow generated by the rotation of the large-diameter portion 32 and the outer peripheral portion 33 returns the media M contained in the objects to be dispersed to the upstream side along the inner peripheral wall of the container 2 before the gap separator 8 . It has a return force equal to or greater than the pressure of the main stream of the object to be dispersed that is about to pass between the peripheral wall and the dispersion disk 20 .

The churning flow generated by the rotation of the cylindrical rotor 31 is caused by the frictional resistance between the grooves 35 formed in the cylindrical rotor 31 and the object to be dispersed. This stirring flow is set to be smaller than the flow of the object to be dispersed passing through the through-holes 22 of the dispersing disk 20 . In other words, centrifugal force is applied to the media M passing through the through-holes 22 of the dispersing disk 20 without preventing the objects to be dispersed that have passed through the dispersing disk 20 from passing through the through-holes 34 of the centrifugal rotor 30, The media M are fed into the agitated flow flowing along the inner peripheral wall of the container 2 .

The agitated flow that collides with the main flow includes the media M that have reached the discharge section side, and the collision area is also the dispersion area on the outer periphery of the dispersion disk 20 . Therefore, the media that have reached the discharge section side are reliably returned to the upstream dispersion area.

Only the object to be dispersed from the media M separated by the agitated flow passes through the gap separator 8 and is discharged from the discharge section 6 to the outside of the disperser 1 .

According to the dispersing machine 1 configured as described above, the cooperation of the dispersing rotor 4 and the dispersing disk 20 continuously generates a force to return the media M to the upstream side. The media M can be moved to the dispersion area on the outer peripheral side of each dispersion disk 20 without disturbing the main flow, and distributed processing of the objects to be dispersed can be continuously performed while the media M are uniformly distributed.

Moreover, since the dispersing rotor 4 is provided between the dispersing discs 20 adjacent to each other, the distance between the dispersing discs is increased. Therefore, the dispersing disc 20 efficiently disperses the frictional heat generated when the object to be dispersed is sheared. Therefore, it is possible to suppress deterioration of physical properties of the object to be dispersed due to frictional heat.

Furthermore, the disperser 1 collides with the main flow, which is about to pass through the gap between the inner peripheral wall of the container 2 and the dispersing disk 20, on the most downstream side with the agitated flow generated by the centrifugal rotor 30. To suppress the passage of an object and change its course to the rotating shaft side. Thereafter, the dispersing machine 1 causes the object to be dispersed to pass through the through-holes 22 of the dispersing disk 20 and the through-holes 34 of the centrifugal rotor 30 and is discharged from the gap separator 8 . The media M that has reached up to the point can be returned to the distributed area of the distributed disk 20 . Therefore, clogging of the gap separator 8 by the media M is suppressed, so that the discharge efficiency of the dispersed object is enhanced. The synergistic effect of the dispersing machine 1 having the above configuration can increase the processing amount of the dispersed object per unit time.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various design changes are possible within the scope of the claims.

(1) In the dispersing machine 1 configured as described above, a configuration in which a stirring rotor is provided at the tip of the rotary shaft 3 may be employed. As shown in FIGS. 12 and 13, the stirring rotor 40 has a plurality of pins 42 provided at regular intervals along the outer circumference and axial direction of a cylindrical rotor 41 . That is, the pins 42 of the second row are positioned between the pins 42 of the first row on the tip side of the shaft, and the positions of the pins 42 of the first row and the pins 42 of the second row do not overlap in the axial direction. .

According to this configuration, the media M, which tends to stay at the center of rotation on the upstream side, collides with the pins 42 due to the rotation of the stirring rotor 40 and is flipped off toward the mainstream. Therefore, all of the media M put into the container 2 can be used for distributed processing.

(2) In the dispersion machine 1 having the above configuration, the centrifugal rotor 30 may be configured as follows. As shown in FIGS. 14 and 15, the centrifugal rotor 300 includes a large-diameter portion 320 having an outer diameter larger than that of the rotor 310 and a large-diameter portion 320 at one end of the truncated conical rotor 310 on the discharge side. An outer peripheral portion 330 surrounding the rotor 310 and a through hole 340 passing through the large-diameter portion 32 in the thickness direction between the rotor 310 and the outer peripheral portion 330 .

The truncated conical rotor 310 has a truncated conical shape that tapers toward the upper surface of one end on the upstream side. The upstream surface of the truncated conical rotor 310 is set to have a diameter that overlaps with the through hole 22 formed in the dispersion disk 20 and is in contact with the downstream surface of the dispersion disk 20 .

The downstream side surface of the large-diameter portion 320 has a curved shape protruding toward the discharge portion 6 . That is, the gap between the end surface of the container 2 and the downstream side surface is set to gradually widen from the center of the rotating shaft 3 toward the inner peripheral wall of the container 2 .

Enveloping portion 330 is composed of a plurality of blades erected from the upstream surface of large-diameter portion 320 toward the upstream side. That is, the blades are provided at regular intervals on the upstream side surface of the large-diameter portion 320 and have a tapered shape in which the thickness decreases toward the front end in the rotation direction when viewed from the front in the axial direction. Enclosure 330 has a substantially parallelogram shape when viewed from the side, and each of the front end and the rear end in the rotational direction is slanted backward from the proximal end to the distal end of large diameter portion 320 .

The through-hole 340 is for sending out the object to be dispersed toward the discharge part 6, and penetrates in the thickness direction of the large-diameter part 320 between the truncated cone-shaped rotor 310 and the blades. In the present embodiment, the through-hole 340 is an arcuate elongated hole having a length substantially equal to the width of the blade, but is not limited to this shape, and can be appropriately changed to an elliptical shape, a circular shape, or the like. be.

According to this configuration, the centrifugal rotor 300 can generate an agitated flow that collides with the main flow that is about to pass through the gap between the inner peripheral wall of the container 2 and the dispersion disk 20, like the centrifugal rotor 30 of the above-described embodiment. . This stirring flow also returns the media M that has reached the gap separator 8 to the upstream side together. Therefore, clogging of the gap separator 8 by the media M can be suppressed, and the media M returned by the stirring flow can be reused in the dispersion area of the dispersion disk 20 .

The downstream side surface of the large-diameter portion 320 may have a configuration in which a ring-shaped groove or a plurality of grooves are formed radially from the center side, as in the above-described embodiment. The number and size of the grooves can be appropriately set and changed according to the physical properties of the object to be dispersed and the size of the container 2 .

Further, grooves may be provided on the outer peripheral surface of the truncated cone-shaped rotor 310 . In this case, as in the above-described embodiment, the upstream surface of the truncated conical rotor 310 is in contact with the downstream surface of the dispersing disk 20 and part of the through hole 22 formed in the dispersing disk 20 . The groove of the truncated conical rotor 310 and the through-hole 22 may communicate with each other.

(3) In the dispersing machine 1 configured as described above, the through holes 22 formed in the dispersing discs 20 may be formed perpendicularly from the upstream side surface to the downstream side surface, or may be formed vertically. It may be formed so as to obliquely penetrate in the direction opposite to the rotation direction R of the dispersion disk 20 toward the surface on the downstream side. Furthermore, the through hole 22 may be an ellipse or an elongated hole in addition to the circular shape.

(4) In the dispersing machine 1 configured as described above, the through-holes 22 formed in the dispersing disk 20 may be formed vertically from the upstream surface to the downstream surface. Also, the through hole 22 may be oval or elongated instead of circular.

(5) Although the dispersing machine 1 of each of the above embodiments has been described as a horizontal type in which the rotating shaft 3 is held horizontally in a cantilever manner, it can also be used as a vertical type in which the rotating shaft 3 is vertical or inclined.

Reference Signs List 1 Disperser 2 Container 3 Rotating shaft 4 Distributing rotor 5 Input part 6 Discharging part 7 Supply pipe 8 Gap separator 9 Discharging pipe 15 Groove 20 Distributing disk 21 Protruding piece 22 Through hole 30 Centrifugal rotor 31 Rotor 32 Large diameter part 33 Surrounding part 33A Stirring block 34 Through hole 35 Groove

That is, it is a media-type dispersing machine that disperses together with the media while feeding the media in the container and the object to be dispersed, which is introduced from the charging section provided on the upstream side of the container, toward the discharging section provided on the downstream side,
a plurality of truncated cone-shaped distributed rotors having a taper with an outer diameter that increases from the downstream side toward the upstream side;
one or more dispersing discs having a plurality of projecting pieces on the outer periphery and a plurality of through-holes directed from the upstream surface to the downstream surface;
a rotating shaft on which the dispersion rotor and the dispersion disk are rotatably mounted ;
A dispersing machine, wherein the dispersing rotor and the dispersing disk are alternately attached to the rotating shaft.

Claims (6)

A media-type dispersing machine that disperses together with the media while feeding the media in the container and the object to be dispersed, which is input from the input unit provided on the upstream side of the container, toward the discharge unit provided on the downstream side,
a plurality of truncated cone-shaped distributed rotors having a taper with an outer diameter that increases from the downstream side toward the upstream side;
one or more dispersing discs having a plurality of projecting pieces on the outer periphery and a plurality of through-holes directed from the upstream surface to the downstream surface;
a rotating shaft on which the dispersion rotor and the dispersion disk are rotatably mounted;
A dispersing machine characterized in that the dispersing rotors and the dispersing disks are alternately attached to the rotating shaft so that the dispersing disks are positioned between the upstream side and the downstream side of the plurality of dispersing rotors. . The dispersing machine according to claim 1, wherein the dispersing rotor has an outer peripheral surface, and the outer peripheral surface includes a rough surface. 2. The disperser according to claim 1, wherein a plurality of grooves are formed along the outer peripheral surface and extend in the direction from upstream to downstream. 4. The disperser according to claim 3, wherein the plurality of grooves and the plurality of through holes of the dispersing disk communicate with each other on the upstream side of the dispersing rotor. 5. The method according to any one of claims 1 to 4, wherein the through-holes are formed so as to obliquely penetrate in the same direction as the rotating direction of the dispersion disk from the upstream side surface to the downstream side surface. A dispersing machine according to any one of the preceding claims. 5. The disperser according to claim 1, wherein said through-hole has a tapered shape in which an outer diameter decreases from said upstream surface toward said downstream surface.

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