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EP0988894A3 - Vane wheel arrangement for air current roller mills - Google Patents

Vane wheel arrangement for air current roller mills Download PDF

Info

Publication number
EP0988894A3
EP0988894A3 EP99117648A EP99117648A EP0988894A3 EP 0988894 A3 EP0988894 A3 EP 0988894A3 EP 99117648 A EP99117648 A EP 99117648A EP 99117648 A EP99117648 A EP 99117648A EP 0988894 A3 EP0988894 A3 EP 0988894A3
Authority
EP
European Patent Office
Prior art keywords
ring
roller mills
air current
blade ring
vane wheel
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
EP99117648A
Other languages
German (de)
French (fr)
Other versions
EP0988894B1 (en
EP0988894A2 (en
Inventor
Michael Dipl.-Ing. Keyssner
Thomas Dipl.-Ing. Letsch
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 EP0988894A2 publication Critical patent/EP0988894A2/en
Publication of EP0988894A3 publication Critical patent/EP0988894A3/en
Application granted granted Critical
Publication of EP0988894B1 publication Critical patent/EP0988894B1/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
    • B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B02C15/001—Air flow directing means positioned on the periphery of the horizontally rotating milling surface

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Drying Of Solid Materials (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

Zur Senkung der Herstellungskosten von Luftstrom-Wälzmühlen und vergleichbaren Mühlen und zur Optimierung des Mahl- und Sichtprozesses über die Strömungsrichtung des Fluid-Mahlgut-Gemisches ist erfindungsgemäß ein Schaufelkranz vorgesehen, welcher verschwenkbare Leitschaufeln (4) aufweist. Der Schaufelkranz ist als ein Polygon-Schaufelkranz in Segmentform mit wenigstens einem äußeren Mantelring bzw. Außenring (2) ausgebildet, welcher segmentiert und polygonal ausgebildet ist und aus einer Vielzahl von Außen-Polygonsegmenten (5) aus einem ebenen Blechzuschnitt besteht. Eine oder mehrere verschwenkbare Leitschaufeln (4) können mit einer oberen, unteren oder mittigen Schwenkachse (25) an den Polygonsegmenten (5) angeordnet und stufenlos oder stufenarm verschwenkt und arretiert werden.

Figure 00000001
To reduce the production costs of airflow roller mills and comparable mills and to optimize the grinding and classifying process via the direction of flow of the fluid-millbase mixture, a blade ring is provided according to the invention, which has pivotable guide blades (4). The blade ring is designed as a polygon blade ring in segment shape with at least one outer casing ring or outer ring (2), which is segmented and polygonal and consists of a plurality of outer polygon segments (5) made of a flat sheet metal blank. One or more pivotable guide vanes (4) can be arranged on the polygon segments (5) with an upper, lower or central pivot axis (25) and pivoted and locked in a stepless or stepped manner.
Figure 00000001
EP99117648A 1998-09-25 1999-09-07 Vane wheel arrangement for air current roller mills Expired - Lifetime EP0988894B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19844113A DE19844113A1 (en) 1998-09-25 1998-09-25 Bucket ring for airflow roller mills
DE19844113 1998-09-25

Publications (3)

Publication Number Publication Date
EP0988894A2 EP0988894A2 (en) 2000-03-29
EP0988894A3 true EP0988894A3 (en) 2000-05-31
EP0988894B1 EP0988894B1 (en) 2001-06-20

Family

ID=7882290

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99117648A Expired - Lifetime EP0988894B1 (en) 1998-09-25 1999-09-07 Vane wheel arrangement for air current roller mills

Country Status (11)

Country Link
US (1) US6092748A (en)
EP (1) EP0988894B1 (en)
JP (1) JP4109400B2 (en)
CN (1) CN1191886C (en)
AT (1) ATE202299T1 (en)
CA (1) CA2283365C (en)
CZ (1) CZ291325B6 (en)
DE (2) DE19844113A1 (en)
DK (1) DK0988894T3 (en)
ES (1) ES2159980T3 (en)
ZA (1) ZA996065B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6290071B1 (en) * 1999-12-21 2001-09-18 General Steel And Supply Company Air separator system
US7549382B2 (en) * 2000-04-24 2009-06-23 Edward Kenneth Levy On-line coal flow control mechanism for vertical spindle mills
DE10149817A1 (en) * 2001-10-09 2003-04-10 Bbp Energy Gmbh Rotating roll-track mill has several spaced-out deflecting sheets on wall of mill housing in region above jet ring extending to sieve housing connection
JP4272456B2 (en) * 2003-03-25 2009-06-03 バブコック日立株式会社 Classifier, vertical pulverizer and coal fired boiler device equipped with the same
DE102004019109B4 (en) * 2004-04-20 2006-02-23 Alstom Power Boiler Gmbh Separator flap operation for static or dynamic separator in roller mill, involves using flap adjustment actuator to adjustably actuate guide flaps and rigging device for concentric admission of follower pin in upper gudgeon of guide flap
DE102006044833B4 (en) * 2006-09-20 2010-01-21 Babcock Borsig Service Gmbh Centrifugal separator and method for sifting
CN102397806B (en) * 2011-10-13 2015-08-26 郝志刚 Material dispersion device for vertical mill
KR101466887B1 (en) * 2013-06-07 2014-12-04 한양대학교 산학협력단 Apparatus for Metal Liberation in Printed Circuit Boards(PCBs)
US10376894B2 (en) 2014-02-14 2019-08-13 Glennon C. Sontag Grinder
JP6503307B2 (en) * 2016-02-09 2019-04-17 三菱日立パワーシステムズ株式会社 Grinding device, throat of grinding device and pulverized coal-fired boiler
CN106269195A (en) * 2016-09-28 2017-01-04 张家口煜达电力科技有限公司 Medium-speed pulverizer stagewise rotary wind ring
CN117244675A (en) * 2023-11-03 2023-12-19 上海卡山科技股份有限公司 Quiet wind ring and coal pulverizer with primary air flow adjusting device
CN119303715A (en) * 2024-12-17 2025-01-14 安徽晋煤中能化工股份有限公司 A highly safe pulverized coal drying device for pulverized coal gasification and pulverization

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4084754A (en) * 1976-07-27 1978-04-18 Loesche Hartzerkleinerungs-Und Zementmaschinen Gmbh & Co. Kg Combined vane-rotor separator
EP0165429A1 (en) * 1984-05-16 1985-12-27 Krupp Polysius Ag Process for operating a crushing mill, and crushing mill working by this process
JPH01199658A (en) * 1988-02-03 1989-08-11 Babcock Hitachi Kk Structure for regulating throat area
JPH01254267A (en) * 1988-04-05 1989-10-11 Babcock Hitachi Kk Vertical crusher
US5090631A (en) * 1990-10-15 1992-02-25 Wark Rickey E Air flow rate control device for pulverizer vane wheel

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4423815C2 (en) * 1994-07-06 1996-09-26 Loesche Gmbh Mill classifier
DE4412197A1 (en) * 1994-04-08 1995-10-19 Loesche Gmbh Method and device for comminuting material of different grain sizes, in particular an airflow mill
US5667149A (en) * 1995-07-03 1997-09-16 Foster Wheeler Energy Corporation Solids pulverizer mill and process utilizing interactive air port nozzles
US5819947A (en) * 1996-01-29 1998-10-13 Sure Alloy Steel Corporation Classifier cage for rotating mill pulverizers

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4084754A (en) * 1976-07-27 1978-04-18 Loesche Hartzerkleinerungs-Und Zementmaschinen Gmbh & Co. Kg Combined vane-rotor separator
EP0165429A1 (en) * 1984-05-16 1985-12-27 Krupp Polysius Ag Process for operating a crushing mill, and crushing mill working by this process
JPH01199658A (en) * 1988-02-03 1989-08-11 Babcock Hitachi Kk Structure for regulating throat area
JPH01254267A (en) * 1988-04-05 1989-10-11 Babcock Hitachi Kk Vertical crusher
US5090631A (en) * 1990-10-15 1992-02-25 Wark Rickey E Air flow rate control device for pulverizer vane wheel

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 013, no. 501 (C - 652) 10 November 1989 (1989-11-10) *
PATENT ABSTRACTS OF JAPAN vol. 014, no. 007 (C - 673) 10 January 1990 (1990-01-10) *

Also Published As

Publication number Publication date
CA2283365C (en) 2006-03-21
ES2159980T3 (en) 2001-10-16
ATE202299T1 (en) 2001-07-15
CN1191886C (en) 2005-03-09
CA2283365A1 (en) 2000-03-25
JP2000093822A (en) 2000-04-04
DK0988894T3 (en) 2001-10-01
US6092748A (en) 2000-07-25
CN1249210A (en) 2000-04-05
DE19844113A1 (en) 2000-03-30
CZ291325B6 (en) 2003-02-12
CZ342599A3 (en) 2000-04-12
DE59900128D1 (en) 2001-07-26
EP0988894B1 (en) 2001-06-20
ZA996065B (en) 2000-01-12
JP4109400B2 (en) 2008-07-02
EP0988894A2 (en) 2000-03-29

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