EP0818249A1 - Roue de triage pour séparateur pneumatique - Google Patents

Roue de triage pour séparateur pneumatique Download PDF

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Publication number
EP0818249A1
EP0818249A1 EP97890123A EP97890123A EP0818249A1 EP 0818249 A1 EP0818249 A1 EP 0818249A1 EP 97890123 A EP97890123 A EP 97890123A EP 97890123 A EP97890123 A EP 97890123A EP 0818249 A1 EP0818249 A1 EP 0818249A1
Authority
EP
European Patent Office
Prior art keywords
wheel
channels
classifying
classifying wheel
blades
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
EP97890123A
Other languages
German (de)
English (en)
Other versions
EP0818249B1 (fr
Inventor
Josef Dipl.-Ing. Keuschnigg
Jürgen Dipl.-Ing. Roth
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.)
PMT-JETMILL GMBH
Original Assignee
PMT Gesteinsvermahlungstechnik
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Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25595189&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0818249(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by PMT Gesteinsvermahlungstechnik filed Critical PMT Gesteinsvermahlungstechnik
Publication of EP0818249A1 publication Critical patent/EP0818249A1/fr
Application granted granted Critical
Publication of EP0818249B1 publication Critical patent/EP0818249B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
    • B07B7/08—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
    • B07B7/083—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force generated by rotating vanes, discs, drums, or brushes

Definitions

  • the invention relates to a classifying wheel for a wind classifier has channels on its circumference through which the classifying wheel from the visible air loaded with fine material from outside to inside is flowed through, and in which the fine air loaded with fine material is discharged from the classifying wheel in the axial direction.
  • Sifters have the task of being carried in the visible air Separate visible material into fine and coarse material, which, e.g. in EP-A1 552 837 described, can be done in that a Classification wheel of an air classifier approximately radially from the outside inwards is flowed through, after which the fine air laden with fine material in axial direction is discharged from the classifying wheel. Through the Rotation of the classifying wheel and the resulting centrifugal forces in the channels or in the area of the outer mouths of the Channels, the coarse material is thrown outwards and cannot with the visible air and the fine material are discharged to the inside.
  • EP-A1 552 837 it was proposed in EP-A1 552 837 to arrange a distribution pipe within the classifying wheel, in which a plurality of openings is provided, wherein the size of the openings from the axial outflow end of the classifying wheel away increases more and more. Through the smaller openings near the The flow resistance at the outflow end is higher than in the outflow end distant area, so that a more constant Course of the flow velocity or the acting Negative pressure within the classifying wheel via the axial Length of the same is reached.
  • the invention is therefore based on the object of a classifying wheel the genus mentioned at the beginning, with which one as possible over the axial length of the classifying wheel constant separation behavior can be achieved.
  • This task is solved with a generic classifying wheel in that the channels in axially different radial Levels different angles to the radial direction of the sight wheel exhibit.
  • the rejection on the rotor outer radius does not only affect the Visible air, but also very effectively on the particles.
  • the invention thus takes advantage of the fact that the Inflow of the fine air laden visual air to the outer mouth of the channels from the inclination of the channels to the radial direction the sight wheel is influenced. Therefore, the channels in axially different radial planes in different Angles aligned with the radial direction of the classifying wheel, then those mentioned above can be more even Separation properties can be achieved through the classifying wheel without that there are additional facilities, such as a manifold According to EP-A1 552 837, what throttle losses or cause high pressure drops.
  • Fig. 1 is a wind sifter schematically with an inventive Classification wheel 20 is shown schematically, the Classifying wheel 20 in a housing 21 with an inlet 23 for classifying air with exposed material and an outlet 22 for coarse material is. The classifying air is removed with a classifying material axial outlet 24.
  • housing 21 instead of that shown in FIGS. 1 and 2 and described housing 21 also other forms of Housings can be used and that the visual air and Visible material is also fed separately into the housing 21 can be.
  • Fig. 3 an inventive sight wheel 20 is in section partially shown, which consists of five classifying wheel sections 1, 2 and 3 is built.
  • the classifying wheel 20 becomes classifying air with classifying material fed in the direction of arrows 5 and loaded with fines Visual air is at the outflow end 13 in the direction of arrow 4 discharged through the outlet 24 from the classifying wheel.
  • the classifying wheel sections 1 and 2 consist of one Carrier 6, which is connected to a hub 8 via five spokes 7 is.
  • a plurality of wheel blades 9, 9 ' is on the carrier 6 arranged, which is in the axial direction of the classifying wheel section 1, 1 'extend.
  • the wheel blades 9, 9 ' can be radial Direction of the classifying wheel section 1, 1 'angled, like is shown using the wheel blades 9, or be curved.
  • the wheel blades can also be designed as flat rotor bars, as is shown in the Wheel blades 9 'is shown in Fig. 4.
  • the wheel blades 9, 9 ' In its outer In the area, the wheel blades 9, 9 'have an angle of inclination ⁇ to the radial.
  • the angle of inclination ⁇ in the outer area determines the visual behavior more than the angle of inclination in the inner region of the channels 12 in the wheel blades 9.
  • ⁇ the angle to the radial inclined that they run from the inside to the outside
  • Direction of rotation 10 of the sight wheel 20 are inclined.
  • the classifying wheel section 3 in FIG. 3 differs in that 4 of the sight wheel sections 1, 2 i.a. in that the carrier 6 does not have spokes with the Hub 8 is connected, but via a continuous disc 14, as can be seen in FIG. 3. This is necessary because the Classifying wheel section 3 at the outflow end 13 of the classifying wheel End is arranged and thus the conclusion of the classifying wheel.
  • the angle of inclination ⁇ of the sight wheel sections 1, 2 and 3 is at the sight wheel sections 2 and 3 larger than the sight wheel sections 1. Due to the larger angle of inclination of the wheel blades 9, 9 'or the channels 12 formed between them the rejection for the visible air particle flow increased so that here the passage of larger particles is prevented and thus an improved separation behavior of the entire rotor precise separation is achieved.
  • classifying wheel section shown in FIG. 4 not exactly with the classifying wheel sections shown in FIG. 3 coincides, since it is in the in Fig. 4th illustrated wheel section around an integral part is, in which the blades 9, 9 'formed on the carrier 6 are, whereas it is with the classifying wheel sections shown in FIG. 3 are those in which between support disks 16, 16 ', 16 ", blades 9, 9' held positively are, as can be seen in FIGS. 5 and 6 in detail.
  • the middle support disks 16 point to both of them End faces 25 circumferential grooves 26 in which the Blades 9, 9 'are added with their ends 27.
  • spacers 28 are provided, which are a total have an annular shape and in the groove 26 on both sides the support disk 16 are inserted.
  • the spacers 28 radially (around the Inclination angle ⁇ inclined to the radial) open to the outside Slits in which the blades 9, 9 'lie.
  • the construction of the classifying wheel 20 from support disks just described 16, 16 ', 16 ", between which the blades 9, 9' are held positively without penetrating them the advantage that the sight wheel 20 is very stable overall is constructed because the support disks 16 through their continuous annular cross section have a high load-bearing capacity. It is understood that this structure of a classifying wheel Carrying disks and blades held in a positive manner between them can also be used with classifying wheels, where the channels between the blades over the entire length of the classifying wheel have substantially the same orientation.
  • the classifying wheel sections are 1, 2 and 3 placed on a shaft 15 in a rotationally fixed manner, over which the sight wheel sections 1, 2 and 3 with a Drive, not shown, are driven.
  • the angle of inclination of those formed between the wheel blades 9, 9 ' Channels 12 is preferably between 30 ° and 45 °, can, however, depending on the respective conditions, such as the particle size or the specific weight of the particles the material to be viewed or the desired fraction ratio between Coarse and fine goods, also above or below, for example between 15 ° and 60 °.
  • Embodiment can the fine air loaded with fine material also at both axial ends of the classifying wheel via outflow channels dissipated to the performance of the invention Classifier.
  • a classifying wheel 20 for a wind classifier has on its circumference Channels 12 through which the classifying wheel 20 of the fine material laden visual air is flowed through from the outside to the inside. Then the fine air loaded with fine material becomes axial Direction removed from the sight wheel 20.
  • the channels 12 point different in axially different radial planes Angle ⁇ to the radial direction of the sight wheel 20, the angle of inclination ⁇ of the channels 12 near the outflow end 13 of the classifying wheel is greater than the angle of inclination .alpha Outflow 13 distant channels 12.

Landscapes

  • Combined Means For Separation Of Solids (AREA)
  • Separating Particles In Gases By Inertia (AREA)
EP97890123A 1996-07-08 1997-07-03 Roue de triage pour séparateur pneumatique Expired - Lifetime EP0818249B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AT120596 1996-07-08
AT1205/96 1996-07-08
AT0120596A AT404234B (de) 1996-07-08 1996-07-08 Sichtrad für einen windsichter
US08/889,577 US5957299A (en) 1996-07-08 1997-07-08 Separator wheel for an air separator

Publications (2)

Publication Number Publication Date
EP0818249A1 true EP0818249A1 (fr) 1998-01-14
EP0818249B1 EP0818249B1 (fr) 2002-02-06

Family

ID=25595189

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97890123A Expired - Lifetime EP0818249B1 (fr) 1996-07-08 1997-07-03 Roue de triage pour séparateur pneumatique

Country Status (6)

Country Link
US (1) US5957299A (fr)
EP (1) EP0818249B1 (fr)
JP (1) JPH10128242A (fr)
CN (1) CN1176156A (fr)
AT (1) AT404234B (fr)
CA (1) CA2209145C (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008135558A3 (fr) * 2007-05-08 2008-12-31 Polysius Ag Dispositif et procédé de séparation d'une matière d'alimentation
CN105583155A (zh) * 2016-03-23 2016-05-18 君联益能（北京）科技有限公司 双调节分流式高效分离器
US11278935B2 (en) 2018-12-13 2022-03-22 Netzsch-Feinmahltechnik Gmbh Centrifugal separator comprising special separator wheel

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6110242A (en) * 1998-10-13 2000-08-29 Blower Application Company, Inc. Apparatus for separating solids from a gas
DE50006828D1 (de) * 2000-08-28 2004-07-22 Keuschnigg Josef Sichtrad
DE10261448A1 (de) * 2002-12-31 2004-07-29 Nied, Roland, Dr.-Ing. Beschaufelter Sichtrotor für Windsichter
DE102004053530B4 (de) * 2004-11-05 2008-04-30 Aufbereitungstechnologie Noll Gmbh Sichterrad für eine Vorrichtung zur Trennung staubförmiger, fasriger oder körniger Güter
JP5151940B2 (ja) * 2008-12-03 2013-02-27 株式会社リコー 分級装置
CN104576719B (zh) * 2014-12-03 2017-11-24 华为技术有限公司 隧穿场效应晶体管及其制备方法
DE102017108168A1 (de) * 2017-04-18 2018-10-18 Hengst Se Rotor eines Zentrifugalabscheiders zum Abscheiden von Flüssigkeits- und/oder Feststoffpartikeln aus einem Gasstrom
CN109590215B (zh) * 2018-12-11 2023-08-25 天津艾惟科技有限公司 多级颗粒分选机

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4689141A (en) * 1985-06-03 1987-08-25 F. L. Smidth & Co. A/S Separator for sorting particulate material, with a plurality of separately adjustable guide vane sets
EP0244744A2 (fr) * 1986-05-07 1987-11-11 OMYA GmbH Crible centrifuge
FR2623427A1 (fr) * 1987-11-23 1989-05-26 Kloeckner Humboldt Deutz Ag Turbo-separateur pneumatique
US4934900A (en) * 1989-07-31 1990-06-19 Fuller Company Assembly forming a cylindrical cage of spaced apart vanes
JPH0568904A (ja) * 1991-05-24 1993-03-23 Ube Ind Ltd 竪型粉砕機
EP0552837A1 (fr) * 1992-01-23 1993-07-28 Luzenac America Inc. Trieur centrifuge de particules pourvu d'un distributeur à affluence uniforme
WO1995007149A1 (fr) * 1993-09-07 1995-03-16 Pmt Gesteinsvermahlungstechnik Separateur a air a force centrifuge
JPH07112161A (ja) * 1993-10-15 1995-05-02 Nisshin Flour Milling Co Ltd 粉体分級機

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US40238A (en) * 1863-10-13 Improvement in smut-mills
US2367906A (en) * 1942-01-09 1945-01-23 Wall Apparatus for separating wood flour
DE816941C (de) * 1947-03-24 1951-10-15 Spillers Ltd Verfahren und Vorrichtung zur Behandlung von Getreide nach dem Waschen und Schleudern
DE2012797C3 (de) * 1970-03-18 1973-11-29 G. Siempelkamp & Co, 4150 Krefeld Vorrichtung zum Sichten von Schüttgütern
DE2613611A1 (de) * 1976-03-30 1977-10-13 Satake Eng Co Ltd Kornreinigungsmaschine
US4257880A (en) * 1979-06-28 1981-03-24 Jones Donald W Centrifugal air classifying apparatus
GB8401009D0 (en) * 1984-01-14 1984-02-15 Northern Eng Ind Classifier
FR2574392B1 (fr) * 1984-12-07 1987-02-06 Morielli Daniel Dispositif d'usinage d'un produit plat en verre
DE3545691C1 (de) * 1985-12-21 1987-01-29 Orenstein & Koppel Ag Vorrichtung zum Klassieren von staubfoermigen Schuettguetern
FR2609016B1 (fr) * 1986-12-30 1989-12-01 Cassese Antoine Machine automatique verticale pour la coupe du verre
AT399865B (de) * 1990-05-15 1995-08-25 Lisec Peter Verfahren und vorrichtung zum brechen von glasscheiben
AT394987B (de) * 1990-09-18 1992-08-10 Lisec Peter Vorrichtung zum sortieren von glastafelzuschnitten
AT403687B (de) * 1992-04-06 1998-04-27 Lisec Peter Verfahren und vorrichtung zum zerteilen von glastafeln in zuschnitte
AT398302B (de) * 1992-12-14 1994-11-25 Lisec Peter Vorrichtung zum lagern von tafel- oder plattenförmigen gegenständen
US5301812A (en) * 1993-04-02 1994-04-12 Ecc International Inc. Air classifying apparatus with wear reducing deflector
AT404681B (de) * 1993-09-07 1999-01-25 Thaler Horst Dipl Ing Zentrifugalkraft-windsichter

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4689141A (en) * 1985-06-03 1987-08-25 F. L. Smidth & Co. A/S Separator for sorting particulate material, with a plurality of separately adjustable guide vane sets
EP0244744A2 (fr) * 1986-05-07 1987-11-11 OMYA GmbH Crible centrifuge
FR2623427A1 (fr) * 1987-11-23 1989-05-26 Kloeckner Humboldt Deutz Ag Turbo-separateur pneumatique
US4934900A (en) * 1989-07-31 1990-06-19 Fuller Company Assembly forming a cylindrical cage of spaced apart vanes
JPH0568904A (ja) * 1991-05-24 1993-03-23 Ube Ind Ltd 竪型粉砕機
EP0552837A1 (fr) * 1992-01-23 1993-07-28 Luzenac America Inc. Trieur centrifuge de particules pourvu d'un distributeur à affluence uniforme
WO1995007149A1 (fr) * 1993-09-07 1995-03-16 Pmt Gesteinsvermahlungstechnik Separateur a air a force centrifuge
JPH07112161A (ja) * 1993-10-15 1995-05-02 Nisshin Flour Milling Co Ltd 粉体分級機

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 17, no. 388 (C - 1086) 21 July 1993 (1993-07-21) *
PATENT ABSTRACTS OF JAPAN vol. 95, no. 8 29 September 1995 (1995-09-29) *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008135558A3 (fr) * 2007-05-08 2008-12-31 Polysius Ag Dispositif et procédé de séparation d'une matière d'alimentation
CN101652191B (zh) * 2007-05-08 2012-09-26 伯利休斯股份有限公司 用于筛选给料的装置及方法
US8430246B2 (en) 2007-05-08 2013-04-30 Polysius Ag Apparatus and method for sifting feedstock
CN105583155A (zh) * 2016-03-23 2016-05-18 君联益能（北京）科技有限公司 双调节分流式高效分离器
US11278935B2 (en) 2018-12-13 2022-03-22 Netzsch-Feinmahltechnik Gmbh Centrifugal separator comprising special separator wheel
US11607709B2 (en) 2018-12-13 2023-03-21 Netzsch-Feinmahltechnik Gmbh Centrifugal separator comprising special separator wheel

Also Published As

Publication number Publication date
ATA120596A (de) 1998-02-15
AT404234B (de) 1998-09-25
EP0818249B1 (fr) 2002-02-06
US5957299A (en) 1999-09-28
CA2209145C (fr) 2005-01-04
CN1176156A (zh) 1998-03-18
JPH10128242A (ja) 1998-05-19
CA2209145A1 (fr) 1998-01-08

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