EP0139279A3 - Fluidised bed-opposed jet mill - Google Patents

Fluidised bed-opposed jet mill Download PDF

Info

Publication number
EP0139279A3
EP0139279A3 EP84112177A EP84112177A EP0139279A3 EP 0139279 A3 EP0139279 A3 EP 0139279A3 EP 84112177 A EP84112177 A EP 84112177A EP 84112177 A EP84112177 A EP 84112177A EP 0139279 A3 EP0139279 A3 EP 0139279A3
Authority
EP
European Patent Office
Prior art keywords
additional nozzles
nozzle
bed
jet mill
axis
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
Application number
EP84112177A
Other languages
German (de)
Other versions
EP0139279A2 (en
EP0139279B1 (en
Inventor
Roland Dr.-Ing. Nied
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.)
Hosokawa Alpine AG
Original Assignee
Alpine AG
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 Alpine AG filed Critical Alpine AG
Priority to AT84112177T priority Critical patent/ATE32837T1/en
Publication of EP0139279A2 publication Critical patent/EP0139279A2/en
Publication of EP0139279A3 publication Critical patent/EP0139279A3/en
Application granted granted Critical
Publication of EP0139279B1 publication Critical patent/EP0139279B1/en
Expired legal-status Critical Current

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
    • B02C19/00—Other disintegrating devices or methods
    • B02C19/06—Jet mills
    • B02C19/068—Jet mills of the fluidised-bed type

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)

Abstract

The apparatus disclosed relates to a fluidized bed jet mill having a grinding chamber which is free of fixtures which is provided in its bottom region with a nozzle with a gas jet emerging vertically upward. The jet mill is configured such that when the grinding chamber is filled with the material to be reduced in size, material and gas emerge from the bed of material as a column of little speed. The column serves as a feeder for a classifier provided above the surface of the material bed and driven independently from the impulse of the jet emerging from the bottom nozzle. For improving the efficiency of energy utilization in grinding, a plurality of additional nozzles are provided. The additional nozzles discharge below the surface of the bed of material and into the grinding chamber. The orifices of the additional nozzles are uniformly distributed in a plane running perpendicular to the axis of the bottom nozzle. The additional nozzles are distributed about the circumference of a circle within the plane and coaxial with the axis of the bottom nozzle. The axes of the additional nozzles all intersect at a point on the axis of the bottom nozzle below the plane of the nozzle orifices.
EP84112177A 1983-10-20 1984-10-11 Fluidised bed-counter jet mill Expired EP0139279B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84112177T ATE32837T1 (en) 1983-10-20 1984-10-11 FLUID BED COUNTERFLOW MILL.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3338138 1983-10-20
DE3338138A DE3338138C2 (en) 1983-10-20 1983-10-20 Fluidized bed opposed jet mill

Publications (3)

Publication Number Publication Date
EP0139279A2 EP0139279A2 (en) 1985-05-02
EP0139279A3 true EP0139279A3 (en) 1985-10-02
EP0139279B1 EP0139279B1 (en) 1988-03-09

Family

ID=6212326

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84112177A Expired EP0139279B1 (en) 1983-10-20 1984-10-11 Fluidised bed-counter jet mill

Country Status (5)

Country Link
US (1) US4602743A (en)
EP (1) EP0139279B1 (en)
JP (1) JPS60168547A (en)
AT (1) ATE32837T1 (en)
DE (1) DE3338138C2 (en)

Families Citing this family (43)

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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 (en) * 1985-03-23 1987-02-19 Alpine Ag, 8900 Augsburg Method for producing a spherical grain shape in toners for electrophotography
DE3519309C1 (en) * 1985-05-30 1986-12-18 Alpine Ag, 8900 Augsburg Process for the continuous production of granules from a solid in a fluidized material bed
JPH07712B2 (en) * 1985-10-11 1995-01-11 三井東圧化学株式会社 Inorganic filler-containing polyolefin resin composition
DE3617489A1 (en) * 1986-05-24 1987-11-26 Bayer Ag SINTERABLE SI (DOWN ARROW) 3 (DOWN ARROW) N (DOWN ARROW) 4 (DOWN ARROW) POWDER AND ITS PRODUCTION METHOD
US4905918A (en) * 1988-05-27 1990-03-06 Ergon, Inc. Particle pulverizer apparatus
DE3825469A1 (en) * 1988-07-27 1990-02-01 Basf Ag METHOD FOR DISPERSION, CRUSHING OR DESAGGLOMERATION AND SIGHTING OF SOLIDS
DE3833830A1 (en) * 1988-10-05 1990-04-12 Messer Griesheim Gmbh METHOD AND DEVICE FOR COLD GRINDING
DE3844457A1 (en) * 1988-12-31 1990-07-12 Hoechst Ag FINE-GRINED POLYETHERKETONE POWDER, METHOD FOR THE PRODUCTION AND USE THEREOF
US5247052A (en) * 1988-12-31 1993-09-21 Hoechst Aktiengesellschaft Fine-grained polyether-ketone powder, process for the manufacture thereof, and the use thereof
JP2754680B2 (en) * 1989-03-17 1998-05-20 大同特殊鋼株式会社 Processing method of metal powder
US4986479A (en) * 1989-08-14 1991-01-22 Ingersoll-Rand Company Fluid jet shredder apparatus and method of use
US5133504A (en) * 1990-11-27 1992-07-28 Xerox Corporation Throughput efficiency enhancement of fluidized bed jet mill
US5542613A (en) * 1992-12-10 1996-08-06 Nied; Roland Process for impact crushing of solid particles
DE4431534B4 (en) * 1994-02-10 2006-12-28 Nied, Roland, Dr. Ing. Machine for acting on comminuted and classifiable raw material, as well as method for operating the machine
DE4419222C2 (en) * 1994-06-01 2002-05-29 Hosokawa Alpine Ag & Co Fluidized bed jet mill
DE19513034A1 (en) * 1995-04-06 1996-10-10 Nied Roland Fluid bed jet milling device
DE19608242A1 (en) * 1996-03-04 1997-09-11 Bayer Ag Sampling procedure for particle-laden guest flows
DE19641129A1 (en) * 1996-10-05 1998-04-09 Nied Roland Method of decomposing solid matter particles in fluidised bed
DE19728382C2 (en) * 1997-07-03 2003-03-13 Hosokawa Alpine Ag & Co Method and device for fluid bed jet grinding
AT407525B (en) * 1999-07-09 2001-04-25 Holderbank Financ Glarus METHOD FOR CRUSHING PIECES OR GRANULES AND DEVICE FOR CARRYING OUT THIS METHOD
FR2811915A1 (en) * 2000-07-21 2002-01-25 Recyclage Et Technologie Recycling procedure for large tyres uses high-pressure water jets to cut off tyre walls before removing tread
DE10033628A1 (en) 2000-07-11 2002-01-24 Hosokawa Alpine Ag & Co Fluid-bed opposed jet mill
DE10045160C2 (en) * 2000-08-14 2002-07-18 Ulf Noll Gmbh Multifunctional device for grinding, sifting, mixing and / or deagglomeration
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 (en) 2004-10-29 2010-06-30 花王株式会社 Toner production method
DE102005039118A1 (en) 2005-08-18 2007-02-22 Wacker Chemie Ag Method and device for comminuting silicon
DE102006048850A1 (en) 2006-10-16 2008-04-17 Evonik Degussa Gmbh Amorphous submicron particles
US8067051B2 (en) * 2006-06-19 2011-11-29 Kraft Foods R & D, Inc. Process for milling cocoa shells
DE102010052028A1 (en) 2010-11-23 2012-05-24 Sasol Wax Gmbh Process for milling waxes using grinding aids in a jet mill, use of polyols as grinding aids and wax powders containing polyols
US20150239048A1 (en) * 2012-09-12 2015-08-27 Xiamen Tungsten Co., Ltd. Manufacturing method of rare earth magnet alloy powder, rare earth magnet and a powder making device
CN103721818B (en) * 2012-10-11 2015-12-02 中磁科技股份有限公司 A kind of method reducing fluidisation air-flow mill grinding room temperature
DE102012111431A1 (en) * 2012-11-26 2014-05-28 Klafs Gmbh & Co. Kg micronizer
CN105195281B (en) * 2015-09-11 2017-08-25 哈尔滨工业大学 A kind of dregs breaking device for slag gasification furnace bottom
CN106076563B (en) * 2016-08-16 2018-12-04 浙江国正安全技术有限公司 Fluidized bed air flow crusher campaigning device
CN107051682A (en) * 2017-02-10 2017-08-18 广州中卓智能装备有限公司 The grinding system of innovation type fluidized bed airflow grinding machine
CN106824452A (en) * 2017-02-10 2017-06-13 广州中卓智能装备有限公司 Fluidized bed airflow grinding machine intelligence change system
DE102018008127B4 (en) 2018-10-13 2022-06-09 Hosokawa Alpine Aktiengesellschaft Die head and process for producing a multi-layer tubular film
DE102018009632B4 (en) 2018-12-11 2021-12-09 Hosokawa Alpine Aktiengesellschaft Apparatus for winding and changing laps of web material and a method therefor
DE102020006008B3 (en) 2020-10-01 2022-03-31 Hosokawa Alpine Aktiengesellschaft Fluidized bed opposed jet mill for the production of finest particles from feed material of low bulk density and method therefor

Citations (5)

* Cited by examiner, † Cited by third party
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 (en) * 1947-06-05 1950-11-02 Crusher device
US2672296A (en) * 1949-01-04 1954-03-16 Blaw Knox Co Fluid impact pulverizer
DE921970C (en) * 1952-02-21 1955-01-07 Basf Ag Grinding device
DE3140294A1 (en) * 1981-10-10 1983-04-28 Alpine Ag, 8900 Augsburg Method and device for separating a mixture of materials into components having differing degrees of grindability

Family Cites Families (7)

* Cited by examiner, † Cited by third party
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 (en) * 1970-08-14 1984-04-12 Alpine Ag, 8900 Augsburg Fluidized bed jet mill
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
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 (en) * 1947-06-05 1950-11-02 Crusher device
US2672296A (en) * 1949-01-04 1954-03-16 Blaw Knox Co Fluid impact pulverizer
DE921970C (en) * 1952-02-21 1955-01-07 Basf Ag Grinding device
DE3140294A1 (en) * 1981-10-10 1983-04-28 Alpine Ag, 8900 Augsburg Method and device for separating a mixture of materials into components having differing degrees of grindability

Also Published As

Publication number Publication date
DE3338138C2 (en) 1986-01-16
JPS60168547A (en) 1985-09-02
EP0139279A2 (en) 1985-05-02
ATE32837T1 (en) 1988-03-15
EP0139279B1 (en) 1988-03-09
JPS628215B2 (en) 1987-02-21
US4602743A (en) 1986-07-29
DE3338138A1 (en) 1985-05-09

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