EP0139279A2 - Broyeur à contre-jets à lit fluidisé - Google Patents
Broyeur à contre-jets à lit fluidisé Download PDFInfo
- Publication number
- EP0139279A2 EP0139279A2 EP84112177A EP84112177A EP0139279A2 EP 0139279 A2 EP0139279 A2 EP 0139279A2 EP 84112177 A EP84112177 A EP 84112177A EP 84112177 A EP84112177 A EP 84112177A EP 0139279 A2 EP0139279 A2 EP 0139279A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- jet
- bed
- axis
- plane
- 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.)
- Granted
Links
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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
- B02C19/00—Other disintegrating devices or methods
- B02C19/06—Jet mills
- B02C19/068—Jet mills of the fluidised-bed type
Definitions
- the invention relates to a fluidized bed jet mill with the features of the preamble of claim 1.
- jet mills recreate especially in those cases where high demands are made on the fineness or purity of the ground product or wear and build-up are to be expected and plants with comminution machines with moving grinding tools become more complicated and expensive to acquire and operate as before economically working shredding machines.
- the fluidized bed jet mill meets these requirements because, due to the high material load that arises, it is 2 to 4 times more efficient than the other known jet mills, e.g. B. the spiral jet mill, and works even with the hardest regrind practically without wear.
- the bed of material is subjected to a very intensive circulation movement, with which the entire contents of the grinding chamber are detected and the jets are loaded more densely with material.
- the fact that parts of the material bed remain and solidify - as is observed in the known fluidized bed jet mills and there deteriorates the grinding effect and makes cleaning of the grinding chamber more difficult - is effectively prevented.
- the optimal grinding effect of the arrangement according to the invention is obtained if the distance of the intersection of the nozzle axes from the plane of the nozzle orifices is selected so that the vectorial, i.e. H. the sum of the pulse currents of all nozzles obtained by geometric addition becomes zero.
- the impulse flow of a nozzle is to be understood as the product of the jet velocity at the nozzle mouth and the amount of gas passed through in the time unit; it corresponds to the momentum of the gas jet emerging from the nozzle and has the dimension of a force.
- all the nozzles are of the same design and have the same dimensions. This results in equal distances for all nozzles from the nozzle mouth to the focal point of the jets, the space in which all jets overlap, so that the same grinding conditions are given for each jet.
- the space requirement of the nozzle arrangement is kept to a minimum, so that it is possible to work with a smaller filling of the grinding chamber than before, which leads to a further improvement in the use of energy.
- the jet mill shown in section in FIG. 1 has a grinding chamber 1 free of internals, which is designed in its lower region as a cone 2 and is closed at the top by the classifier 3 with classifying wheel 4.
- the floor nozzle 5 opens into the grinding chamber 1 with a gas jet emerging vertically upwards and three further jet nozzles 6, the mouths of which are evenly distributed on a circle 8 coaxial with the axis 7 of the floor nozzle 5 in a plane 9 running perpendicular to the axis 7, and their axes 10 intersect at point 11 on axis 7 below level 9 (Fig. 2).
- Bottom nozzle 5 and jet nozzles 6 are of identical design and have the same dimensions, so that the distance between the nozzle mouth and point 11 becomes the same for all nozzles 5 and 6.
- the distance of the point 11 from the plane 9 is chosen so that the vectorial sum of the pulse currents of the nozzles 5 and 6 becomes arithmetically zero, i. H. here it is a quarter of the distance of the mouth of the floor nozzle 5 from the level 9, since all the nozzles 5 and 6 are fed from the common supply line 12 and thus the jet speed at the nozzle mouth and here the amount of gas passed through in the time unit. for all nozzles 5 and 6 are the same.
- the material 13 to be shredded is conveyed into the grinding chamber 1 with the aid of the metering screw 14 adjustable in speed and forms here a material bed 15 of such height that material and gas (from the nozzles 5 and 6) at a low speed as a fountain 16 upwards Classification wheel 4 can be transported.
- the classifier fine leaves the jet mill via the outlet line 17 and is from here to a (not shown) dust separator, for. B. cyclone and / or filter performed.
- the classifier coarse material circles along the wall of the grinding chamber 1 back into the material bed 15.
- the fineness of the finished product is set via the speed of the classifying wheel 4, which is driven by the motor 18 via a belt drive 19 with a continuously adjustable transmission ratio.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Disintegrating Or Milling (AREA)
- Combined Means For Separation Of Solids (AREA)
- Crushing And Grinding (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT84112177T ATE32837T1 (de) | 1983-10-20 | 1984-10-11 | Fliessbett-gegenstrahlmuehle. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3338138A DE3338138C2 (de) | 1983-10-20 | 1983-10-20 | Fließbett-Gegenstrahlmühle |
DE3338138 | 1983-10-20 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0139279A2 true EP0139279A2 (fr) | 1985-05-02 |
EP0139279A3 EP0139279A3 (en) | 1985-10-02 |
EP0139279B1 EP0139279B1 (fr) | 1988-03-09 |
Family
ID=6212326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84112177A Expired EP0139279B1 (fr) | 1983-10-20 | 1984-10-11 | Broyeur à contre-jets à lit fluidisé |
Country Status (5)
Country | Link |
---|---|
US (1) | US4602743A (fr) |
EP (1) | EP0139279B1 (fr) |
JP (1) | JPS60168547A (fr) |
AT (1) | ATE32837T1 (fr) |
DE (1) | DE3338138C2 (fr) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0362525A2 (fr) * | 1988-10-05 | 1990-04-11 | Messer Griesheim Gmbh | Procédé et dispositif pour le brayage à froid |
EP0377170A2 (fr) * | 1988-12-31 | 1990-07-11 | Hoechst Aktiengesellschaft | Procédé de fabrication de granules à grains fins de polyéthercétone et son utilisation |
EP0488637A2 (fr) * | 1990-11-27 | 1992-06-03 | Xerox Corporation | Broyeur à jet à lit fluidisé |
US5247052A (en) * | 1988-12-31 | 1993-09-21 | Hoechst Aktiengesellschaft | Fine-grained polyether-ketone powder, process for the manufacture thereof, and the use thereof |
WO2008046727A2 (fr) * | 2006-10-16 | 2008-04-24 | Evonik Degussa Gmbh | Particule submicronique amorphe |
DE102010052028A1 (de) | 2010-11-23 | 2012-05-24 | Sasol Wax Gmbh | Verfahren zum Mahlen von Wachsen unter Verwendung von Mahlhilfsmitteln in einer Strahlmühle, Verwendung von Polyolen als Mahlhilfsmittel und Wachs-Pulver enthaltend Polyole |
WO2014080035A1 (fr) * | 2012-11-26 | 2014-05-30 | Klafs Gmbh & Co. Kg | Micronisateur |
DE102020006008B3 (de) | 2020-10-01 | 2022-03-31 | Hosokawa Alpine Aktiengesellschaft | Fließbettgegenstrahlmühle zur Erzeugung feinster Partikel aus Aufgabegut geringer Schüttdichte und Verfahren dafür |
US11339021B2 (en) | 2018-12-11 | 2022-05-24 | Hosokawa Alpine Aktiengesellschaft | Device for winding and changing the reels of web material as well as a dedicated process |
US11654605B2 (en) | 2018-10-13 | 2023-05-23 | Hosokawa Alpine Aktiengesellschaft | Die head and process to manufacture multilayer tubular film |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4765545A (en) * | 1985-03-21 | 1988-08-23 | Ricegrowers' Co-Operative Mills, Ltd. | Rice hull ash filter |
DE3510610C2 (de) * | 1985-03-23 | 1987-02-19 | Alpine Ag, 8900 Augsburg | Verfahren zum Erzeugen einer sphärischen Kornform bei Tonern für die Elektrophotographie |
DE3519309C1 (de) * | 1985-05-30 | 1986-12-18 | Alpine Ag, 8900 Augsburg | Verfahren zur kontinuierlichen Herstellung von Granulaten aus einem Feststoff in einem fluidisierten Gutbett |
JPH07712B2 (ja) * | 1985-10-11 | 1995-01-11 | 三井東圧化学株式会社 | 無機フイラ−含有ポリオレフイン樹脂組成物 |
DE3617489A1 (de) * | 1986-05-24 | 1987-11-26 | Bayer Ag | Sinterfaehiges si(pfeil abwaerts)3(pfeil abwaerts)n(pfeil abwaerts)4(pfeil abwaerts)-pulver sowie verfahren zu seiner herstellung |
US4905918A (en) * | 1988-05-27 | 1990-03-06 | Ergon, Inc. | Particle pulverizer apparatus |
DE3825469A1 (de) * | 1988-07-27 | 1990-02-01 | Basf Ag | Verfahren zur dispergierung, zerkleinerung bzw. desagglomeration und sichtung von feststoffen |
JP2754680B2 (ja) * | 1989-03-17 | 1998-05-20 | 大同特殊鋼株式会社 | 金属粉末の処理方法 |
US4986479A (en) * | 1989-08-14 | 1991-01-22 | Ingersoll-Rand Company | Fluid jet shredder apparatus and method of use |
US5542613A (en) * | 1992-12-10 | 1996-08-06 | Nied; Roland | Process for impact crushing of solid particles |
DE4431534B4 (de) * | 1994-02-10 | 2006-12-28 | Nied, Roland, Dr. Ing. | Maschine zur Einwirkung auf zerkleinerbares und klassierbares Rohgut, sowie Verfahren zum Betrieb der Maschine |
DE4419222C2 (de) * | 1994-06-01 | 2002-05-29 | Hosokawa Alpine Ag & Co | Fließbett-Strahlmühle |
DE19513034A1 (de) * | 1995-04-06 | 1996-10-10 | Nied Roland | Vorrichtung für die Fließbett-Strahlmahlung |
DE19608242A1 (de) * | 1996-03-04 | 1997-09-11 | Bayer Ag | Verfahren zur Probennahme bei partikelbeladenen Gastströmen |
DE19641129A1 (de) * | 1996-10-05 | 1998-04-09 | Nied Roland | Verfahren zum Zerlegen von Feststoffpartikeln in einem Fließbett und Vorrichtung für die Durchführung eines solchen Verfahrens |
DE19728382C2 (de) * | 1997-07-03 | 2003-03-13 | Hosokawa Alpine Ag & Co | Verfahren und Vorrichtung zur Fließbett-Strahlmahlung |
AT407525B (de) * | 1999-07-09 | 2001-04-25 | Holderbank Financ Glarus | Verfahren zum zerkleinern von stückgut oder granulat sowie vorrichtung zur durchführung dieses verfahrens |
FR2811915A1 (fr) * | 2000-07-21 | 2002-01-25 | Recyclage Et Technologie | Procede et dispositif de recuperation de gomme de caoutchouc |
DE10033628A1 (de) | 2000-07-11 | 2002-01-24 | Hosokawa Alpine Ag & Co | Fliessbett-Gegenstrahlmühle |
DE10045160C2 (de) * | 2000-08-14 | 2002-07-18 | Ulf Noll Gmbh | Multifunktionale Vorrichtung zum Mahlen, Sichten, Mischen und/oder Desagglomerieren |
US7032849B2 (en) * | 2003-01-23 | 2006-04-25 | Ricoh Company, Ltd. | Fluidized bed pulverizing and classifying apparatus, and method of pulverizing and classifying solids |
US7445806B2 (en) * | 2004-09-02 | 2008-11-04 | Kraft Foods Global Brands Llc | Process for selective grinding and recovery of dual-density foods |
US7449275B2 (en) | 2004-09-21 | 2008-11-11 | Kao Corporation | Process for preparing toner |
US7560218B2 (en) | 2004-10-01 | 2009-07-14 | Kao Corporation | Process for preparing toner |
JP4491328B2 (ja) | 2004-10-29 | 2010-06-30 | 花王株式会社 | トナーの製造方法 |
DE102005039118A1 (de) * | 2005-08-18 | 2007-02-22 | Wacker Chemie Ag | Verfahren und Vorrichtung zum Zerkleinern von Silicium |
US8067051B2 (en) * | 2006-06-19 | 2011-11-29 | Kraft Foods R & D, Inc. | Process for milling cocoa shells |
WO2014040525A1 (fr) * | 2012-09-12 | 2014-03-20 | 厦门钨业股份有限公司 | Poudre d'alliage pour aimant en terres rares, procédé de fabrication d'aimant en terres rares et dispositif de pulvérisation de poudre |
CN103721818B (zh) * | 2012-10-11 | 2015-12-02 | 中磁科技股份有限公司 | 一种降低流化气流磨研磨室温度的方法 |
CN105195281B (zh) * | 2015-09-11 | 2017-08-25 | 哈尔滨工业大学 | 一种用于熔渣气化炉底部的破渣装置 |
CN106076563B (zh) * | 2016-08-16 | 2018-12-04 | 浙江国正安全技术有限公司 | 流化床气流粉碎机用辅选装置 |
CN107051682A (zh) * | 2017-02-10 | 2017-08-18 | 广州中卓智能装备有限公司 | 革新型流化床气流磨粉碎机的研磨系统 |
CN106824452A (zh) * | 2017-02-10 | 2017-06-13 | 广州中卓智能装备有限公司 | 流化床气流磨粉碎机智能装备系统 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2103454A (en) * | 1933-09-18 | 1937-12-28 | Hephaest A G Fur Motorische Kr | Impact-crusher for comminuting hard materials |
FR967396A (fr) * | 1947-06-05 | 1950-11-02 | Appareil broyeur | |
US2672296A (en) * | 1949-01-04 | 1954-03-16 | Blaw Knox Co | Fluid impact pulverizer |
DE921970C (de) * | 1952-02-21 | 1955-01-07 | Basf Ag | Mahlvorrichtung |
DE3140294A1 (de) * | 1981-10-10 | 1983-04-28 | Alpine Ag, 8900 Augsburg | Verfahren und vorrichtung zum trennen eines gutgemisches in komponenten unterschiedlicher mahlbarkeit |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1948609A (en) * | 1932-01-18 | 1934-02-27 | American Pulverizing Corp | Method of pulverizing minerals and similar materials |
US2413420A (en) * | 1940-02-26 | 1946-12-31 | Thermo Plastics Corp | Method and apparatus for dispersing or drying fluent material in high velocity elastic fluid jets |
US2832545A (en) * | 1955-03-03 | 1958-04-29 | Exxon Research Engineering Co | Supersonic jet grinding means and method |
US3186648A (en) * | 1963-05-27 | 1965-06-01 | Grace W R & Co | Fluid energy mill |
DE2040519C2 (de) * | 1970-08-14 | 1984-04-12 | Alpine Ag, 8900 Augsburg | Fließbettstrahlmühle |
US4424199A (en) * | 1981-12-11 | 1984-01-03 | Union Carbide Corporation | Fluid jet seed particle generator for silane pyrolysis reactor |
US4553704A (en) * | 1984-02-21 | 1985-11-19 | James Howden & Company Limited | Pulverizing apparatus |
-
1983
- 1983-10-20 DE DE3338138A patent/DE3338138C2/de not_active Expired
-
1984
- 1984-10-11 AT AT84112177T patent/ATE32837T1/de not_active IP Right Cessation
- 1984-10-11 EP EP84112177A patent/EP0139279B1/fr not_active Expired
- 1984-10-19 US US06/662,815 patent/US4602743A/en not_active Expired - Lifetime
- 1984-10-19 JP JP59218777A patent/JPS60168547A/ja active Granted
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2103454A (en) * | 1933-09-18 | 1937-12-28 | Hephaest A G Fur Motorische Kr | Impact-crusher for comminuting hard materials |
FR967396A (fr) * | 1947-06-05 | 1950-11-02 | Appareil broyeur | |
US2672296A (en) * | 1949-01-04 | 1954-03-16 | Blaw Knox Co | Fluid impact pulverizer |
DE921970C (de) * | 1952-02-21 | 1955-01-07 | Basf Ag | Mahlvorrichtung |
DE3140294A1 (de) * | 1981-10-10 | 1983-04-28 | Alpine Ag, 8900 Augsburg | Verfahren und vorrichtung zum trennen eines gutgemisches in komponenten unterschiedlicher mahlbarkeit |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0362525A2 (fr) * | 1988-10-05 | 1990-04-11 | Messer Griesheim Gmbh | Procédé et dispositif pour le brayage à froid |
EP0362525A3 (fr) * | 1988-10-05 | 1991-01-16 | Messer Griesheim Gmbh | Procédé et dispositif pour le brayage à froid |
EP0377170A2 (fr) * | 1988-12-31 | 1990-07-11 | Hoechst Aktiengesellschaft | Procédé de fabrication de granules à grains fins de polyéthercétone et son utilisation |
EP0377170A3 (fr) * | 1988-12-31 | 1991-05-02 | Hoechst Aktiengesellschaft | Procédé de fabrication de granules à grains fins de polyéthercétone et son utilisation |
US5247052A (en) * | 1988-12-31 | 1993-09-21 | Hoechst Aktiengesellschaft | Fine-grained polyether-ketone powder, process for the manufacture thereof, and the use thereof |
EP0488637A2 (fr) * | 1990-11-27 | 1992-06-03 | Xerox Corporation | Broyeur à jet à lit fluidisé |
EP0488637A3 (en) * | 1990-11-27 | 1992-08-12 | Xerox Corporation | A fluidized bed jet mill |
US8039105B2 (en) | 2006-10-16 | 2011-10-18 | Evonik Degussa Gmbh | Amorphous submicron particles |
CN101616743B (zh) * | 2006-10-16 | 2014-03-05 | 赢创德固赛有限责任公司 | 无定形亚微米颗粒 |
US7850102B2 (en) | 2006-10-16 | 2010-12-14 | Evonik Degussa Gmbh | Amorphous submicron particles |
WO2008046727A2 (fr) * | 2006-10-16 | 2008-04-24 | Evonik Degussa Gmbh | Particule submicronique amorphe |
WO2008046727A3 (fr) * | 2006-10-16 | 2008-07-17 | Evonik Degussa Gmbh | Particule submicronique amorphe |
TWI446970B (zh) * | 2006-10-16 | 2014-08-01 | Evonik Degussa Gmbh | 無定形之次微米級粒子 |
RU2458741C2 (ru) * | 2006-10-16 | 2012-08-20 | Эвоник Дегусса Гмбх | Аморфные субмикронные частицы |
DE102010052028A1 (de) | 2010-11-23 | 2012-05-24 | Sasol Wax Gmbh | Verfahren zum Mahlen von Wachsen unter Verwendung von Mahlhilfsmitteln in einer Strahlmühle, Verwendung von Polyolen als Mahlhilfsmittel und Wachs-Pulver enthaltend Polyole |
WO2012069041A1 (fr) | 2010-11-23 | 2012-05-31 | Sasol Wax Gmbh | Procédé de broyage de cires à l'aide d'auxiliaires de broyage dans un pulvérisateur à jet, utilisation de polyols en tant qu'auxiliaires de broyage et poudre de cire contenant des polyols |
US9249365B2 (en) | 2010-11-23 | 2016-02-02 | Sasol Wax Gmbh | Process for grinding waxes using grinding aids in a jet mill, use of polyols as a grinding aid and wax powder comprising polyols |
WO2014080035A1 (fr) * | 2012-11-26 | 2014-05-30 | Klafs Gmbh & Co. Kg | Micronisateur |
US11654605B2 (en) | 2018-10-13 | 2023-05-23 | Hosokawa Alpine Aktiengesellschaft | Die head and process to manufacture multilayer tubular film |
US11339021B2 (en) | 2018-12-11 | 2022-05-24 | Hosokawa Alpine Aktiengesellschaft | Device for winding and changing the reels of web material as well as a dedicated process |
DE102020006008B3 (de) | 2020-10-01 | 2022-03-31 | Hosokawa Alpine Aktiengesellschaft | Fließbettgegenstrahlmühle zur Erzeugung feinster Partikel aus Aufgabegut geringer Schüttdichte und Verfahren dafür |
EP3988214A1 (fr) | 2020-10-01 | 2022-04-27 | HOSOKAWA ALPINE Aktiengesellschaft | Broyeur à jets opposés à lit fluidisé destiné à la génération de fines particules à partir de matière de chargement à faible densité et procédé associé |
US11833523B2 (en) | 2020-10-01 | 2023-12-05 | Hosokawa Alpine Aktiengesellschaft | Fluidized bed opposed jet mill for producing ultrafine particles from feed material of a low bulk density and a process for use thereof |
Also Published As
Publication number | Publication date |
---|---|
EP0139279B1 (fr) | 1988-03-09 |
US4602743A (en) | 1986-07-29 |
EP0139279A3 (en) | 1985-10-02 |
DE3338138C2 (de) | 1986-01-16 |
DE3338138A1 (de) | 1985-05-09 |
ATE32837T1 (de) | 1988-03-15 |
JPS628215B2 (fr) | 1987-02-21 |
JPS60168547A (ja) | 1985-09-02 |
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