WO2007141992A1 - メディア式分散機 - Google Patents
メディア式分散機 Download PDFInfo
- Publication number
- WO2007141992A1 WO2007141992A1 PCT/JP2007/059755 JP2007059755W WO2007141992A1 WO 2007141992 A1 WO2007141992 A1 WO 2007141992A1 JP 2007059755 W JP2007059755 W JP 2007059755W WO 2007141992 A1 WO2007141992 A1 WO 2007141992A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- media
- slurry
- container
- rotor
- flow part
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/16—Mills in which a fixed container houses stirring means tumbling the charge
- B02C17/166—Mills in which a fixed container houses stirring means tumbling the charge of the annular gap type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/50—Mixing liquids with solids
- B01F23/53—Mixing liquids with solids using driven stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/27—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
- B01F27/271—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed radially between the surfaces of the rotor and the stator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/16—Mills in which a fixed container houses stirring means tumbling the charge
Definitions
- the present invention relates to a media-type disperser that pulverizes and uniformly disperses particulate matter such as various pigments and various ceramic powders, and more specifically, pulverizes and disperses particulate matter in a container.
- the present invention relates to a centrifugal type media disperser capable of suppressing outflow of media used as a medium out of a container.
- a media-type disperser mixes and agitates a particulate medium and a slurry containing the particulate substance in a solvent, and pulverizes the particulate substance through the medium to form fine particles.
- a manufacturing process of a ceramic electronic component includes a process of mixing and dispersing a ceramic slurry in which ceramic powder is dispersed in a solvent using a bead mill. In this step, the ceramic powder is pulverized to form fine particles, and organic components such as a needle are uniformly attached to the ceramic powder, and the ceramic powder is uniformly dispersed in the slurry. At this time, the beads must be separated from the slurry in order to prevent the beads from flowing out of the mill. Therefore, a centrifugal bead mill is conventionally used.
- This type of centrifugal bead mill there is a bead mill proposed in Patent Document 1, for example.
- This bead mill includes a plurality of stirring members arranged at predetermined intervals in a cylindrical stirring tank, and is injected into the stirring medium filled with the bead-shaped dispersion medium filled in the stirring tank.
- the slurry in the stirring tank is supplied from the bottom of the stirring tank, the slurry-like material to be dispersed is stirred in the lower stirring section in the stirring tank, and the dispersion medium is centrifuged in the upper centrifugal section.
- the slurry is discharged from the inner passage of the rotating shaft that penetrates the upper surface of the stirring tank.
- Patent Document 2 describes a media stirring type wet pulverizer.
- This media agitation type pulverizer includes a pulverization tank in which a pulverization chamber is provided, a hollow main shaft rotatably attached to the pulverization tank, and a centrifugal separator attached to a portion of the main shaft located in the pulverization chamber.
- the centrifugal separator is provided with a separation chamber that communicates between the hollow portion of the main shaft and the crushing chamber, and a plurality of rings that connect the pair of rings and the two rings to the outer peripheral portion of the centrifugal separator.
- the stirring blade and a powerful stirring member are provided integrally.
- the slurry is supplied from a supply port adjacent to the main shaft of the pulverization tank, the slurry is processed through the agitation media in the pulverization chamber, and then the agitation media is separated by a centrifugal separator. The slurry is discharged from the hollow main shaft.
- Patent Document 1 JP 2001-046899 A
- Patent Document 2 JP-A-2005-246316
- the centrifugal separator is first rotated while the slurry supply pump is stopped at the start of operation, and the pump is stopped first when the operation is stopped, and then the centrifugal separator is stopped. Prevents outflow.
- the slurry supply port is arranged near the outer periphery of the pulverization tank. As the slurry flows, there is a problem that it rises in the crushing chamber and flows back to the outside of the crushing chamber by backflow of the slurry.
- the media flows out of the container in this way and outside the media stays in the pipe or the pump, the media in the container decreases, the original function of the media is impaired, and its grinding characteristics And dispersion characteristics cannot be obtained.
- the present invention has been made to solve the above problems, and even in the case of a finely divided medium, the medium that does not decrease the processing efficiency of the slurry with a simple structure is reliably separated from the slurry.
- An object of the present invention is to provide a media-type disperser that can prevent outflow of media and can maintain stable pulverization characteristics and dispersion characteristics.
- the rotor rotates in the container, and the rotation of the rotor causes the slurry containing the particulate matter to be supplied into the container, and the particulate medium filled in advance.
- a media type disperser that crushes and disperses the particulate matter
- the container has a first flow part provided to open at the center of the upper surface thereof
- the rotor has a second flow part provided so as to pass through the central part and the central part of the upper surface of the container, and the slurry has the first flow part and the second flow part. It is supplied and discharged at the central part of the container.
- a stirring blade is provided on the lower surface of the rotor.
- the first circulation part shares an axis with the second circulation part and has a larger diameter than the second circulation part.
- the first circulation part is rotatably provided with respect to the container so as to rotate integrally with the second circulation part and is connected to a rotation drive source.
- a rotation drive source Liked to be,
- the invention's effect [0014] According to the present invention, even with a finely divided medium, it is possible to reliably separate the medium without reducing the slurry processing efficiency with a simple structure and to prevent the outflow of the medium. It is possible to provide a media-type disperser that can maintain stable pulverization characteristics and dispersion characteristics.
- FIG. 1 is a cross-sectional view showing a main part of an embodiment of a media type dispersing machine of the present invention.
- FIG. 2 is an overall configuration diagram in which a main part of the media type dispersing machine shown in FIG. 1 is cut away.
- FIG. 3 is a plan view of the main part of the media type dispersing machine shown in FIG.
- the media-type disperser 10 of this embodiment includes a flat circular container 11 and a rotor 12 rotatably accommodated in the container 11.
- a gap is formed between the inner surface of the container 11 and the surface of the rotor 12.
- a predetermined amount of medium M is filled in the container 11. Therefore, when the rotor 12 rotates in the container 11, the medium M and the slurry containing particulate matter are stirred and mixed in the gap between the inner peripheral surface of the container 11 and the outer peripheral surface of the rotor 12, and the particles in the slurry are mixed.
- the pulverized material is pulverized into fine particles and dispersed uniformly in the fine particle force slurry.
- the medium M for example, media having an average particle diameter of less than 100 m can be used.
- a through hole 11A is formed in the central portion of the upper surface of the container 11, and the first flow portion 13 is rotatably attached to the through hole 11A via a seal member 14. Been Yes.
- the first circulation part 13 opens at the center of the upper surface of the container 11 and extends vertically upward.
- a through hole 12A corresponding to the through hole 11A is formed at the center of the rotor 12, and a second flow part 15 serving as a slurry outflow path is attached to the through hole 12A.
- the second flow part 15 extends through the through hole 11 A of the container 11 from the lower surface of the rotor 12 and extends vertically upward along the first flow part 13.
- the first flow part 13 is formed to have a larger diameter than the second flow part 15 and shares the axis with the second flow part 15.
- the first and second flow sections 13 and 15 are connected to each other and are configured to rotate integrally with the container 11. There is a gap between the inner peripheral surface of the first flow part 13 and the outer peripheral surface of the second flow part 13, and this gap is formed as a slurry inflow path.
- a motor 16 that rotates the rotor 12 is disposed on the side of the container 11 as shown in the overall view of the media-type disperser shown with the main part of FIG. 2 cut away. That is, a pulley 16A is attached to the rotating shaft of the motor 16, and a pulley 13A is attached to the first flow part 13 on the container 11 side. An endless belt 17 is hung around these pulleys 13A and 16A, and the first and second flow sections 13 and 15 rotate integrally with the container 11 by the rotation of the motor 16, and the container 11 The rotor 12 starts to rotate within 11.
- stirring blades 18 are fixed radially on the lower surface of the rotor 12 at equal intervals in the circumferential direction. Centrifugal force is applied to the medium M entering the lower surface of the rotor 12 by these stirring blades 18 so that the medium M moves from the central portion of the container 11 to the inner peripheral surface side against the flow of the slurry.
- the stirring blades 18 are formed as flat blades, but other shapes such as curved blades can be appropriately employed as necessary, and the number of used blades can be increased or decreased as necessary. it can. Further, the length of the stirring blade 18 can be appropriately changed. Note that in FIG. 3, the media M is shown with only a part of the force. Actually, the medium M is distributed over the entire gap between the inner peripheral surface of the container 12 and the outer peripheral surface of the rotor 12.
- a predetermined amount of media M is filled in the container 11 in advance.
- the rotor 12 is rotated through the motor 16, and immediately, as shown by the arrows in FIGS. 1 and 2, slurry containing particulate matter is supplied from the gap between the first and second flow sections 13 and 15, Fill container 11 with slurry.
- the medium M to be subjected to centrifugal force is applied from the stirring blade 18 and gathers in the gap between the inner peripheral surface of the container 11 and the outer peripheral surface of the rotor 12 as shown in FIGS.
- the slurry and the medium M are mixed and stirred by receiving the rotational force from the rotor 12 and the particulate matter in the slurry acts as an action of the medium M.
- the particles are pulverized and finely divided, and the finely divided particulate matter is uniformly dispersed in the slurry.
- the slurry containing finely divided particulate matter flows in the container 11 in the direction of the arrow, converges at the center along the bottom surface of the container 11, and passes through the second flow part 15. It flows in the direction of arrow Y and is discharged out of the container 11.
- the medium M Even if the medium M tries to move from the inner peripheral surface side to the center portion of the container 11 along with the flow of the slurry, as described above, the medium M receives centrifugal force from the stirring blade 18 and is separated from the slurry and centrifuged Return to 11 inner surface.
- the finely divided particulate matter has a far smaller particle size than the media M and receives only a slight centrifugal force even when subjected to the centrifugal force of the stirring blade 18, so it cannot overcome the slurry flow. Discharged from the second distribution department 15
- the slurry is supplied from the gap between the first circulation part 13 and the second circulation part 15 in the center of the container 11, and the action of the rotor 12 in the container 11 is achieved.
- the particulate matter in the slurry can be made fine and the finely divided particulate matter can be uniformly dispersed in the slurry.
- this slurry passes through the gap between the bottom surface of the container 11 and the bottom surface of the rotor 12 which is much larger than the particle size of the contained fine particles, and the central force of the rotor 12 is also discharged to the outside via the second flow portion 15.
- the slurry can be efficiently discharged from the second circulation part 15 without reducing the slurry processing efficiency. Also, even if the rotor 12 rotates after the slurry supply is stopped, the media M is surely collected on the inner peripheral surface side of the container 11 by the slurry force centrifugation, and flows out to the outside of the second flow section 15 force. There is nothing.
- the stirring blade 18 since the stirring blade 18 is provided on the lower surface of the rotor 12, the stirring blade 18 applies centrifugal force to the medium M, so that the media M can be more efficiently separated from the slurry force. Can be separated. Further, since the first circulation part 13 shares the axis with the second circulation part 15 and has a larger diameter than the second circulation part 15, the inlet / outlet of the slurry is gathered together in the central part of the container 11. be able to. Further, since the first circulation part 13 is rotatably provided with respect to the container 11 so as to rotate integrally with the second circulation part 15 and is connected to the motor 16, the rotation mechanism of the rotor 12 is simplified. Can be
- the present invention is not limited to the above embodiment.
- the rotational drive mechanism of the rotor may be constituted by a gear mechanism or the like in addition to the pulley.
- the operating conditions of the media type dispersing machine of the present invention can be appropriately set as necessary.
- the slurry inflow / outflow part is in the center of the container, so that the media does not flow out!
- the present invention can be widely used for media-type dispersers in which particulate substances such as various pigments and various ceramic powders are pulverized and uniformly dispersed.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Dispersion Chemistry (AREA)
- Crushing And Grinding (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008520469A JPWO2007141992A1 (ja) | 2006-06-05 | 2007-05-11 | メディア式分散機 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006155674 | 2006-06-05 | ||
JP2006-155674 | 2006-06-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007141992A1 true WO2007141992A1 (ja) | 2007-12-13 |
Family
ID=38801257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/059755 WO2007141992A1 (ja) | 2006-06-05 | 2007-05-11 | メディア式分散機 |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPWO2007141992A1 (ja) |
KR (1) | KR20090018607A (ja) |
CN (1) | CN101443124A (ja) |
WO (1) | WO2007141992A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6862020B1 (ja) * | 2020-06-22 | 2021-04-21 | 淺田鉄工株式会社 | 分散システム |
JP2022001349A (ja) * | 2020-06-22 | 2022-01-06 | 淺田鉄工株式会社 | 分散装置 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019026208A1 (ja) * | 2017-08-02 | 2019-02-07 | 株式会社広島メタル&マシナリー | 分散機と、スラリー中粒子の分散方法及びエマルジョン製造方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6259146U (ja) * | 1985-09-30 | 1987-04-13 | ||
JPS62106637U (ja) * | 1985-12-24 | 1987-07-08 | ||
JPH06114254A (ja) * | 1992-09-30 | 1994-04-26 | Asada Tekko Kk | 分散攪拌機 |
JPH0871400A (ja) * | 1994-08-31 | 1996-03-19 | Makino:Kk | 分散装置 |
JP2003112065A (ja) * | 2001-10-04 | 2003-04-15 | Asada Tekko Kk | 湿式媒体攪拌ミル |
-
2007
- 2007-05-11 JP JP2008520469A patent/JPWO2007141992A1/ja not_active Abandoned
- 2007-05-11 WO PCT/JP2007/059755 patent/WO2007141992A1/ja active Application Filing
- 2007-05-11 KR KR1020087027236A patent/KR20090018607A/ko not_active Application Discontinuation
- 2007-05-11 CN CNA2007800177353A patent/CN101443124A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6259146U (ja) * | 1985-09-30 | 1987-04-13 | ||
JPS62106637U (ja) * | 1985-12-24 | 1987-07-08 | ||
JPH06114254A (ja) * | 1992-09-30 | 1994-04-26 | Asada Tekko Kk | 分散攪拌機 |
JPH0871400A (ja) * | 1994-08-31 | 1996-03-19 | Makino:Kk | 分散装置 |
JP2003112065A (ja) * | 2001-10-04 | 2003-04-15 | Asada Tekko Kk | 湿式媒体攪拌ミル |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6862020B1 (ja) * | 2020-06-22 | 2021-04-21 | 淺田鉄工株式会社 | 分散システム |
JP2022001349A (ja) * | 2020-06-22 | 2022-01-06 | 淺田鉄工株式会社 | 分散装置 |
JP2022001350A (ja) * | 2020-06-22 | 2022-01-06 | 淺田鉄工株式会社 | 分散システム |
Also Published As
Publication number | Publication date |
---|---|
CN101443124A (zh) | 2009-05-27 |
JPWO2007141992A1 (ja) | 2009-10-15 |
KR20090018607A (ko) | 2009-02-20 |
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