EP0526699A1 - Dispersing and grinding apparatus - Google Patents

Dispersing and grinding apparatus Download PDF

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Publication number
EP0526699A1
EP0526699A1 EP92107294A EP92107294A EP0526699A1 EP 0526699 A1 EP0526699 A1 EP 0526699A1 EP 92107294 A EP92107294 A EP 92107294A EP 92107294 A EP92107294 A EP 92107294A EP 0526699 A1 EP0526699 A1 EP 0526699A1
Authority
EP
European Patent Office
Prior art keywords
wall
basket
stirring
dispersing
medium
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP92107294A
Other languages
German (de)
English (en)
French (fr)
Inventor
Masakazu c/o Inoue Mfg. Inc. Inoue
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inoue Mfg Inc
Original Assignee
Inoue Mfg Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Inoue Mfg Inc filed Critical Inoue Mfg Inc
Publication of EP0526699A1 publication Critical patent/EP0526699A1/en
Withdrawn legal-status Critical Current

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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
    • B02C17/168—Mills in which a fixed container houses stirring means tumbling the charge with a basket media milling device arranged in or on the container, involving therein a circulatory flow of the material to be milled
    • 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
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/19—Stirrers with two or more mixing elements mounted in sequence on the same axis
    • B01F27/192—Stirrers with two or more mixing elements mounted in sequence on the same axis with dissimilar elements
    • 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
    • B01F27/272—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed axially between the surfaces of the rotor and the stator, e.g. the stator rotor system formed by conical or cylindrical surfaces
    • 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
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/805—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis wherein the stirrers or the receptacles are moved in order to bring them into operative position; Means for fixing the receptacle
    • B01F27/806—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis wherein the stirrers or the receptacles are moved in order to bring them into operative position; Means for fixing the receptacle with vertical displacement of the stirrer, e.g. in combination with means for pivoting the stirrer about a vertical axis in order to co-operate with different receptacles

Definitions

  • the present invention relates to a dispersing and grinding apparatus for dispersing material to be processed by means of dispersing medium such as balls, beads, etc., and more particularly to a dispersing and grinding apparatus of a batch system.
  • a mixture of the dispersing medium and the material to be processed is stirred, and the material is finely ground by shearing force generated between the media to disperse the material in liquid.
  • dispersing and grinding apparatuses wherein the above dispersion process is carried out by a continuous system or a batch system.
  • dispersing and grinding apparatuses comprising a tank and a basket, disposed within the tank, containing the dispersing medium
  • dispersing and grinding apparatuses comprising a tank and a basket, disposed within the tank, containing the dispersing medium
  • Such an apparatus is provided with a flowing blade under the basket, whereby the material to be processed in the tank is stirred and circulated within the tank such that the material to be processed is made to flow in the basket.
  • the material to be processed, flowing in the basket is stirred and dispersed together with the dispersing medium by a medium-stirring blade.
  • a stirring shaft connected with a motor is supported by a bearing section disposed at the lower part of the basket, and extends toward the lower portion.
  • the flowing blade and the medium-stirring blade each are disposed around the stirring shaft.
  • the stirring shaft is inserted through the bearing section disposed at the lower part of the basket. Therefore, upon a long-term use, it has sometimes happened that the dispersing medium is made to enter a through-hole section of the stirring shaft thereby abrading the through-hole section. Further, with the progress of the abrasion, it has happened that the rotation is obstructed or the dispersing medium flows out of the basket into the tank and is incorporated in the material to be processed. In addition, since the flowing blade and the medium-stirring blade rotate around the same shaft, it has been difficult to control adequately depending on the material to be processed.
  • a dispersing and grinding apparatus wherein the stirring shaft is disposed outside the basket and the flowing blade is disposed at the end of the shaft to circulate the material to be processed within the tank.
  • the flowing blade since the flowing blade is positioned one-sidedly within the tank, the material to be processed flowing within the tank tends to flow eccentrically, and thus hardly flows in the basket uniformly.
  • the dispersion efficiency of such an apparatus is poor as compared with the dispersing and grinding apparatus wherein the flowing blade is disposed at the center of the tank.
  • An object of the present invention is to provide a dispersing and grinding apparatus having excellent dispersion efficiency, in which the rotation of the stirring shaft is not interfered and the dispersing medium does not flow out of the basket in the tank.
  • Another object of the present invention is to provide a dispersing and grinding apparatus as mentioned above, wherein the rotation of the material-stirring blade by which the material to be processed is made to flow and the rotation of the medium-stirring blade by which the dispersing-medium is stirred are individually controlled.
  • a dispersing and grinding apparatus comprising a basket formed into an annular groove shape, having an inner wall formed into a cylindrical shape surrounding a material-stirring shaft which actuates stirring blade for a material to be processed, an outer cylindrical wall surrounding an outer circumference of the inner wall, and a bottom wall extending at the bottom portion of the inner wall and the outer wall, wherein the annular groove of the basket contains a dispersing medium and the material-stirring shaft is extended freely through an annular space formed at the center of the basket to disperse the material to be processed.
  • a body 1 has a stirring head 3 which can be moved up and down by a hydraulic cylinder 2.
  • the stirring head 3 is provided with motors 4 and 5 for actuating stirring shafts as mentioned below.
  • a tank 6 containing the material to be processed is positioned under the stirring head 3.
  • the stirring head 3 is provided with a material-stirring blade 7, inserted into the tank 6, for stirring the material to be processed in the tank, a basket 9 for containing a dispersing medium 8, and a medium-stirring blade 10 for stirring the dispersing medium in the basket which are hanging from the head.
  • a material-stirring shaft 11 for actuating the material-stirring blade 7 is rotated by the motor 4 by means of an appropriate transferring means such as a belt, a pulley or the like.
  • the medium-stirring blade 10 is mounted on a medium-stirring shaft 12 having the same core as the material-stirring shaft 11, and is rotated by the motor 5 by means of an appropriate transferring means such as a belt, a pulley or the like at a lower speed than the material-stirring blade 7.
  • the basket 9 having an annular shape groove 16 formed for containing the dispersing medium 8 (in Fig. 2), comprises an inner wall 13 formed into a cylindrical shape which surrounds the material-stirring shaft 11 under such a condition that the shaft can be rotated freely, a cylindrical outer wall 14 which surrounds the outer circumference of the inner wall 13, and a bottom wall 15 extending at the bottom portion of the inner wall 13 and the outer wall 14.
  • the inner diameter of the inner wall 13 may be of such an extent that it slightly contacts with the stirring shaft 11 so long as the stirring shaft 11 can be rotated freely, but preferably such an extent that they are in the non-contact condition.
  • At least one part of the inner wall 13, outer wall 14 and the bottom wall 15, or the entire wall of respective walls in the drawings, is comprised of a screen which may prevent the passage of the dispersing medium.
  • the screen can be made of a metal net material, a perforated metal sheet, etc.
  • the basket is entirely formed into a cylindrical shape, but may be formed into an inverse cone shape, a square cylindrical shape, a shape having a polygonal cross-section, etc.
  • the above bottom wall 15 is formed integrally with the inner wall 13 and the outer wall 14, but may be formed such that a lid separately formed is disposed at a part of the bottom wall 15. The lid may be mounted so that it can be opened and closed.
  • the bottom wall may be constituted to have a curved shape in series with the inner wall 13 and the outer wall 14.
  • the basket 9 is fixed to the stirring head 3 with hanging members 17 disposed around it as shown in Fig. 2.
  • the basket may be disposed rotatably as mentioned below.
  • the medium-stirring blade 10 is formed into a paddle shape so that it can be rotated freely within the annular groove 16, and the blade may be comprised of one piece, but preferably of two or more pieces or plural pieces as shown in the drawings.
  • the material-stirring shaft 11 extends through a cylindrical space 13a formed at the center of the basket 9, and can be rotated freely irrespective of the basket.
  • the material to be processed flows uniformly from the lower portion toward the upper portion within the tank 6 and flows in the basket 9.
  • the material to be processed, entered the basket 9, is finely ground and dispersed in a liquid by the dispersing medium 8 which is stirred at a low speed by the medium-stirring blade 10 within the basket 9, and then flows in the tank again from the basket 9.
  • Such a flow-in and flow-out are repeated and the material to be processed is thoroughly dispersed.
  • the rotations of the material-stirring blade 7 and the medium-stirring blade 10 are separately adjusted and thus the dispersion process can be conducted at optimum conditions depending on the material to be processed.
  • Fig. 3 shows another example of the present invention.
  • a medium-stirring blade 18 is disposed to a material-stirring shaft 19 and rotates together with a material-stirring blade 20.
  • the other constitution is substantially the same as the example as illustrated in Fig. 1.
  • the basket 9 is fixed to the stirring head.
  • Such an apparatus has a simple structure and thus is preferably used for material to be processed having a low viscosity and the like.
  • Fig. 4 shows a still another example of the present invention.
  • a medium-stirring blade 21 is disposed to a material-stirring shaft 22 and rotates together with a material-stirring blade 23, and such a construction is the same as the example as shown in Fig. 3.
  • a basket 24 is disposed to a rotating shaft 25 having the same core as the material-stirring shaft 22, and is rotated.
  • the constitution of the basket 24 itself is the same as the above-mentioned example, and thus is identified with the same numerals.
  • a scratching blade 26 is disposed to the rotating shaft 25 so as to rotate along the inner wall of the tank 6.
  • the basket 24 is rotated toward the reverse direction against the flow of the material to be processed and thus the shearing force by the dispersing medium 8 is frequently applied to the material to be processed within the basket to conduct the process uniformly and fast. Further, since the opening area of the screen is relatively increased, the amounts of the material to be processed flowing in and flowing out of the basket are increased and thus the dispersing time can be shortened.
  • the material to be processed having a high viscosity can also be made to flow securely within the tank by the scratching blade 26.
  • the material is drawn toward the material-stirring blade 23 rotating at a high speed and made to flow in the basket 24, and then dispersed.
  • the material-rotating shaft can be rotated freely irrespective of the basket containing the dispersing medium, thereby solving the problems that the dispersing medium flows out and the rotation of the stirring shaft is interfered. Further, when the medium-stirring blade and the material-stirring blade are separately rotated, various materials to be processed having different viscosities, can be processed.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
EP92107294A 1991-08-06 1992-04-29 Dispersing and grinding apparatus Withdrawn EP0526699A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3219344A JPH07106305B2 (ja) 1991-08-06 1991-08-06 媒体分散装置
JP219344/91 1991-08-06

Publications (1)

Publication Number Publication Date
EP0526699A1 true EP0526699A1 (en) 1993-02-10

Family

ID=16733985

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92107294A Withdrawn EP0526699A1 (en) 1991-08-06 1992-04-29 Dispersing and grinding apparatus

Country Status (2)

Country Link
EP (1) EP0526699A1 (ja)
JP (1) JPH07106305B2 (ja)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4425906A1 (de) * 1994-07-21 1996-01-25 Netzsch Erich Holding Naßmahlsystem
WO1996033019A1 (de) * 1995-04-21 1996-10-24 Friedrich Vock Verfahren und vorrichtung zum nassmahlen und dispergieren von feststoffpartikeln in flüssigkeiten
WO1997009115A2 (de) * 1995-09-09 1997-03-13 Hermann Getzmann Dispergiervorrichtung und dispergierverfahren
GB2318749A (en) * 1996-11-01 1998-05-06 Mark Wild Mixing and milling solid particles suspended in a liquid
EP1072305A2 (en) * 1999-07-29 2001-01-31 Inoue Mfg., Inc. Medium dispersing apparatus
US7931876B2 (en) 2003-02-05 2011-04-26 Sharp Kabushiki Kaisha Method and apparatus for manufacturing developer, and developer
CN103769276A (zh) * 2014-01-22 2014-05-07 武汉科技大学 一种精细控温研磨装置
KR101419704B1 (ko) * 2013-10-21 2014-08-13 주식회사 디엔텍 청소가 용이한 분리 구조를 갖는 가공원료용 분산 분쇄기
ITBO20130576A1 (it) * 2013-10-18 2015-04-19 Giuseppe Malavasi Dispositivo di raffinatrice a biglie ed apparecchiatura per la preparazione di alimenti comprendente un tale dispositivo
WO2016124618A1 (de) * 2015-02-03 2016-08-11 Dieffenbacher GmbH Maschinen- und Anlagenbau Zerkleinerungsvorrichtung zur rückgewinnung von sekundärrohstoffen aus entsorgtem material sowie verfahren zu deren steuerung
CN107230770A (zh) * 2017-07-12 2017-10-03 湖南艾威尔新能源科技有限公司 锂电池正极材料生产***
CN107486065A (zh) * 2017-09-19 2017-12-19 王俊哲 一种方便更换搅拌轴的搅拌装置
CN107716008A (zh) * 2017-09-25 2018-02-23 苏州雷度生物科技有限公司 一种生物质原料的研磨加工存储装置
CN107855199A (zh) * 2017-09-25 2018-03-30 苏州雷度生物科技有限公司 一种生物质原料粉碎研磨机构
CN107890804A (zh) * 2017-11-17 2018-04-10 青岛惠希食品有限公司 搅拌桶
CN114713060A (zh) * 2021-09-01 2022-07-08 中国矿业大学 一种时空非均态循环射流耦合的调浆装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4174000B2 (ja) * 2003-02-27 2008-10-29 株式会社荒木鉄工 分散装置
JP4681244B2 (ja) * 2004-03-31 2011-05-11 株式会社井上製作所 分散等の処理装置
CN107173837B (zh) * 2017-07-11 2018-08-14 郭玉立 一种鸡饲料混合搅拌装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3329348A (en) * 1963-10-31 1967-07-04 John D Pootmans Pigment grinding mill
FR2529473A1 (fr) * 1982-06-30 1984-01-06 Procedes Ste Nle Et Perfectionnements aux broyeurs rotatifs a billes

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0227010A (ja) * 1988-07-15 1990-01-29 Nippon Jido Kiko Kk 回転式除塵機

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3329348A (en) * 1963-10-31 1967-07-04 John D Pootmans Pigment grinding mill
FR2529473A1 (fr) * 1982-06-30 1984-01-06 Procedes Ste Nle Et Perfectionnements aux broyeurs rotatifs a billes

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPIL Section Ch, Week 8449, Derwent Publications Ltd., London, GB; Class J, AN 84-305134 & JP-B-59 046 665 (DAINIPPON TORYO K.K.) 14 November 1984 *
DATABASE WPIL Section Ch, Week 8940, Derwent Publications Ltd., London, GB; Class J, AN 89-288459 & JP-A-1 210 020 (DAINIPPON TORYO K.K.) 23 August 1989 *

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4425906A1 (de) * 1994-07-21 1996-01-25 Netzsch Erich Holding Naßmahlsystem
WO1996033019A1 (de) * 1995-04-21 1996-10-24 Friedrich Vock Verfahren und vorrichtung zum nassmahlen und dispergieren von feststoffpartikeln in flüssigkeiten
DE19533369C2 (de) * 1995-09-09 1998-06-10 Hermann Getzmann Dispergiervorrichtung und Dispergierverfahren
DE19533369A1 (de) * 1995-09-09 1997-03-13 Hermann Getzmann Dispergiervorrichtung und Dispergierverfahren
WO1997009115A3 (de) * 1995-09-09 1997-04-03 Hermann Getzmann Dispergiervorrichtung und dispergierverfahren
US5967430A (en) * 1995-09-09 1999-10-19 Hermann Getzmann Dispersing device and process
WO1997009115A2 (de) * 1995-09-09 1997-03-13 Hermann Getzmann Dispergiervorrichtung und dispergierverfahren
GB2318749A (en) * 1996-11-01 1998-05-06 Mark Wild Mixing and milling solid particles suspended in a liquid
GB2318749B (en) * 1996-11-01 2000-11-15 Mark Wild Mixing and/or milling solid particles suspended in a liquid
EP1072305A2 (en) * 1999-07-29 2001-01-31 Inoue Mfg., Inc. Medium dispersing apparatus
EP1072305A3 (en) * 1999-07-29 2002-07-17 Inoue Mfg., Inc. Medium dispersing apparatus
US7931876B2 (en) 2003-02-05 2011-04-26 Sharp Kabushiki Kaisha Method and apparatus for manufacturing developer, and developer
ITBO20130576A1 (it) * 2013-10-18 2015-04-19 Giuseppe Malavasi Dispositivo di raffinatrice a biglie ed apparecchiatura per la preparazione di alimenti comprendente un tale dispositivo
KR101419704B1 (ko) * 2013-10-21 2014-08-13 주식회사 디엔텍 청소가 용이한 분리 구조를 갖는 가공원료용 분산 분쇄기
CN103769276A (zh) * 2014-01-22 2014-05-07 武汉科技大学 一种精细控温研磨装置
WO2016124618A1 (de) * 2015-02-03 2016-08-11 Dieffenbacher GmbH Maschinen- und Anlagenbau Zerkleinerungsvorrichtung zur rückgewinnung von sekundärrohstoffen aus entsorgtem material sowie verfahren zu deren steuerung
CN107396629A (zh) * 2015-02-03 2017-11-24 迪芬巴赫机械工程有限公司 用于从废弃的材料回收次级原材料的粉碎设备和控制所述粉碎设备的方法
CN107396629B (zh) * 2015-02-03 2020-03-27 迪芬巴赫机械工程有限公司 粉碎设备和控制粉碎设备的方法
CN107230770A (zh) * 2017-07-12 2017-10-03 湖南艾威尔新能源科技有限公司 锂电池正极材料生产***
CN107230770B (zh) * 2017-07-12 2023-06-02 湖南艾威尔新能源科技有限公司 锂电池正极材料生产***
CN107486065A (zh) * 2017-09-19 2017-12-19 王俊哲 一种方便更换搅拌轴的搅拌装置
CN107716008A (zh) * 2017-09-25 2018-02-23 苏州雷度生物科技有限公司 一种生物质原料的研磨加工存储装置
CN107855199A (zh) * 2017-09-25 2018-03-30 苏州雷度生物科技有限公司 一种生物质原料粉碎研磨机构
CN107890804A (zh) * 2017-11-17 2018-04-10 青岛惠希食品有限公司 搅拌桶
CN114713060A (zh) * 2021-09-01 2022-07-08 中国矿业大学 一种时空非均态循环射流耦合的调浆装置

Also Published As

Publication number Publication date
JPH0538425A (ja) 1993-02-19
JPH07106305B2 (ja) 1995-11-15

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