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EP0443119A3 - Dynamic roller mill-air classifier - Google Patents

Dynamic roller mill-air classifier Download PDF

Info

Publication number
EP0443119A3
EP0443119A3 EP19900122986 EP90122986A EP0443119A3 EP 0443119 A3 EP0443119 A3 EP 0443119A3 EP 19900122986 EP19900122986 EP 19900122986 EP 90122986 A EP90122986 A EP 90122986A EP 0443119 A3 EP0443119 A3 EP 0443119A3
Authority
EP
European Patent Office
Prior art keywords
rotor
riser
sifter
flow
air
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
EP19900122986
Other languages
German (de)
Other versions
EP0443119A2 (en
EP0443119B1 (en
Inventor
Franz Poeschl
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.)
Loesche GmbH
Original Assignee
Loesche GmbH
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 Loesche GmbH filed Critical Loesche GmbH
Publication of EP0443119A2 publication Critical patent/EP0443119A2/en
Publication of EP0443119A3 publication Critical patent/EP0443119A3/en
Application granted granted Critical
Publication of EP0443119B1 publication Critical patent/EP0443119B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
    • B02C23/24—Passing gas through crushing or disintegrating zone
    • B02C23/32—Passing gas through crushing or disintegrating zone with return of oversize material to crushing or disintegrating zone

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Disintegrating Or Milling (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Compressor (AREA)
  • Finger-Pressure Massage (AREA)

Abstract

The dynamic wind sifter rotor has vertical slats with downstream gas and fines outlets, and coarse particle return. A central riser (1), restricted w.r.t. the mill housing (31) for the air-material mixt. flow is deflected radially outwards at the top of the sifter rotor (5) region, into a gravity flow. Louvres (4) in the sifting chamber (12) point towards the rotor and the flow of air and fines entering the rotor is diverted downwards through the rotor bottom hole (24) round the riser to a down shaft (27) round the riser. Coarse material (42) is returned downwards from the sifter chamber to the housing (31) through lines (32) separate from the riser.
EP90122986A 1990-02-19 1990-11-30 Dynamic roller mill-air classifier Expired - Lifetime EP0443119B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4005031A DE4005031C1 (en) 1990-02-19 1990-02-19 Dynamic wind sifter for roller mill - has central, restricted riser for air material mixt. flow with downwards deflection in top region of sifter rotor
DE4005031 1990-02-19

Publications (3)

Publication Number Publication Date
EP0443119A2 EP0443119A2 (en) 1991-08-28
EP0443119A3 true EP0443119A3 (en) 1992-02-26
EP0443119B1 EP0443119B1 (en) 1994-06-15

Family

ID=6400403

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90122986A Expired - Lifetime EP0443119B1 (en) 1990-02-19 1990-11-30 Dynamic roller mill-air classifier

Country Status (13)

Country Link
US (1) US5115989A (en)
EP (1) EP0443119B1 (en)
JP (1) JPH07106341B2 (en)
AT (1) ATE107193T1 (en)
CA (1) CA2036510C (en)
DE (2) DE4005031C1 (en)
DK (1) DK0443119T3 (en)
ES (1) ES2056350T3 (en)
LT (1) LT3222B (en)
LV (1) LV10402B (en)
RU (1) RU2014891C1 (en)
UA (1) UA11094A (en)
ZA (1) ZA911125B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5547133A (en) * 1993-12-23 1996-08-20 Rogers; Lynn Manufacture process for ground oat cereal
US6260708B1 (en) * 1996-10-18 2001-07-17 Hosokawa Alpine Aktiengesellschaft Method for air classification of toner
RU2333045C1 (en) * 2006-12-13 2008-09-10 Государственное образовательное учреждение высшего профессионального образования "Алтайский государственный технический университет им. И.И. Ползунова" (АлтГТУ) Device to separate grain milling products into fractions
DE102008038776B4 (en) 2008-08-12 2016-07-07 Loesche Gmbh Process for the screening of a millbase fluid mixture and mill classifier
CA3079989C (en) 2017-12-04 2023-03-28 Goldcorp Inc. Low energy process for metal extraction

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB372600A (en) * 1930-06-23 1932-05-12 Clarke Chapman Ltd Improvements in pneumatic apparatus for the separation and grading of solid pulverulent material
DE3202054A1 (en) * 1982-01-23 1983-08-04 Steag Ag, 4300 Essen CARBON MILLING SYSTEM WITH SPRINKLE RETURN AND SEPARATION FROM PYRITE AND MOUNTAINS

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1623040A (en) * 1927-04-05 Method and apparatus for grading solid materials
US1806980A (en) * 1931-05-26 Ptjlvebizeb
CH1557A (en) * 1889-09-27 1890-02-14 Mumford Thomas William Basset Improved apparatus for cleaning dust or other mechanical impurities from the air
US857988A (en) * 1906-07-28 1907-06-25 James W Fuller Jr Air-separator for pulverizing and grinding mills.
US2909330A (en) * 1954-09-30 1959-10-20 Hardinge Harlowe Pulverizing mill and process of pulverizing material
US3090487A (en) * 1962-04-05 1963-05-21 Sturtevant Mill Co Method and apparatus for sizing solid particles
US3306443A (en) * 1964-02-19 1967-02-28 Sturtevant Mill Co Vacuum aspirator mechanism with conical barrier element
JP5822274B2 (en) 2012-03-14 2015-11-24 Ykk Ap株式会社 Deck, mounting member, and mounting method of mounting member
JP6213074B2 (en) 2013-09-04 2017-10-18 凸版印刷株式会社 Lid material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB372600A (en) * 1930-06-23 1932-05-12 Clarke Chapman Ltd Improvements in pneumatic apparatus for the separation and grading of solid pulverulent material
DE3202054A1 (en) * 1982-01-23 1983-08-04 Steag Ag, 4300 Essen CARBON MILLING SYSTEM WITH SPRINKLE RETURN AND SEPARATION FROM PYRITE AND MOUNTAINS

Also Published As

Publication number Publication date
ES2056350T3 (en) 1994-10-01
LV10402A (en) 1995-02-20
US5115989A (en) 1992-05-26
DK0443119T3 (en) 1994-10-24
CA2036510C (en) 1997-05-06
EP0443119A2 (en) 1991-08-28
DE4005031C1 (en) 1991-08-08
LV10402B (en) 1995-04-20
JPH06206050A (en) 1994-07-26
ATE107193T1 (en) 1994-07-15
RU2014891C1 (en) 1994-06-30
LTIP433A (en) 1994-10-25
ZA911125B (en) 1991-11-27
EP0443119B1 (en) 1994-06-15
CA2036510A1 (en) 1991-08-20
DE59006151D1 (en) 1994-07-21
JPH07106341B2 (en) 1995-11-15
LT3222B (en) 1995-04-25
UA11094A (en) 1996-12-25

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