EP1184090B1 - Sichtrad - Google Patents
Sichtrad Download PDFInfo
- Publication number
- EP1184090B1 EP1184090B1 EP00890260A EP00890260A EP1184090B1 EP 1184090 B1 EP1184090 B1 EP 1184090B1 EP 00890260 A EP00890260 A EP 00890260A EP 00890260 A EP00890260 A EP 00890260A EP 1184090 B1 EP1184090 B1 EP 1184090B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- blade wall
- separating wheel
- angle
- tilted
- wall
- 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.)
- Expired - Lifetime
Links
Images
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 an air classifier with collectradschaufeln, their radially outer blade ends in the direction of rotation the prepares for collecting data.
- the invention is therefore based on the object, a generic To provide a classifying wheel in which by inclined backwards Shovel ends achieved the best possible visual behavior, the result imminent danger of deposits of bringgut on the rear Bucket wall of reformradschaufeln but avoided as much as possible becomes.
- the two desired Achieved effects in an advantageous manner.
- This will be Very strong inclinations of the blade ends possible, which stands for powder qualities with a largest grain less than 30 microns very beneficial impact.
- the respective angle of the front and rear blade wall of the reformradschaufeln depends on several influencing factors, such as the speed of classifying wheel, type and composition of the visual good and the desired selectivity. As a rule, but a good visual behavior scored when the front scoop wall at an angle greater than about 45 ° and the aft blade wall at an angle is less than about 45 ° inclined.
- the front blade wall at an angle between 50 ° and 80 °, preferably between 60 ° and 70 ° is inclined to the radial direction and if the rear blade wall at an angle between 30 ° and 45 °, preferably about 40 °, is inclined to the radial direction.
- Fig. 1 shows a section of a preparerad invention 1, which as usual has a hub 2 and a paddle wheel rim 4, which are connected to each other via spokes 3.
- a plurality of collectradschaufeln 5 is arranged, the radial outside lying blade ends 6 against those designated by arrow 7
- Direction of rotation of the classifying wheel 1 are inclined backwards.
- the blades 5 have - seen in the direction of rotation 7 - a front Blade wall 8 and a rear blade wall 9 on.
- the front blade wall 8 In the area of radially outboard blade end 6 is the front blade wall 8 with respect to the radial direction 10 at an angle ⁇ of about 60 ° inclined, whereas the rear blade wall 9 at an angle ⁇ of is inclined at about 45 °.
- the outer blade end 6 Furthermore, there is an end face 11, which in the illustrated Embodiment of the radial 10 inclined at an angle of 90 ° is, ie the outer radius of the classifying wheel in the area of reformradschaufeln 5 defined.
- the front blade wall 8 of the sortradschaufeln 5 first a substantially flat area 12th on, the interior of the classifying wheel 1 out in a curved area 13 passes.
- the rear blade wall 9 of the reformradschaufeln 5 is substantially away from the outer vane end 6 equipped with continuous curvature whose radius of curvature greater as the radius of curvature in the region 13 on the front blade wall eighth is. This results in a cross-sectional shape of the sortradschaufeln 5, from the outer blade end 6 to the central region towards and then decreases towards the inner end 14 again.
- the front blade wall 8 is in the region of the inner end 14 of the blades 5 so inclined so that they are at an angle ⁇ to the radial in the direction of rotation. 7 is inclined.
- the angle ⁇ is preferably between 10 ° and 40 °, more preferably between 20 ° and 30 °.
- FIG. 2 is schematically another embodiment of the invention whereradschaufeln 5 shown, the front blade wall 8 in the region of the outer blade end 6 at an angle ⁇ of about 70 ° and the rear blade wall 9 an angle ⁇ of about 45 ° to the radial 10 are inclined.
- the reformradschaufeln 5 of FIG. 2 also differ from the reformradschaufeln 5 of Fig. 1, that in Fig. 2, the rear blade wall 9 in Area of the outer blade end 6 a substantially flat Area 16 has.
- the front blade wall 8 and the rear Blade wall 9 are adjacent to the flat areas 12 and 16 curved and can be approximately parallel in the region of the inner end 14 aligned to Radial 10.
- the classifying wheel according to the invention can be fine and finest grains from a flow of particulate material through targeted guidance of a Gas flow in the area of entry of the flow between the reformradschaufeln (5) are separated into the reformrad.
- With the Invention can with lowest possible speeds of the classifying wheel finest powder fractions are obtained. This will be essentially achieved in that the particle-laden gas flow of a higher Centrifugal force is exposed to through the channels between the reformradschaufeln (5) to get into the inner area of the classifying wheel, as this corresponds to the peripheral speed of the classifying wheel would. Due to the lower inclination of the rear blade wall (9) becomes at the same time the otherwise problematic deposition of bringgut on the rear blade wall (9) prevented.
Landscapes
- Combined Means For Separation Of Solids (AREA)
- Hydraulic Turbines (AREA)
- Paper (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
- Cyclones (AREA)
Description
Claims (7)
- Sichtrad für einen Windsichter mit Sichtradschaufeln (5), deren radial außen liegenden Schaufelenden (6) in Drehrichtung (7) des Sichtrades (1) rückwärts geneigt sind, dadurch gekennzeichnet, daß im Bereich des radial außen liegenden Schaufelendes (6) der Sichtradschaufeln (5) die in Drehrichtung (7) gesehen vordere Schaufelwand (8) der Sichtradschaufeln (5) zur radialen Richtung (10) in einem größeren Winkel geneigt ist als die hintere Schaufelwand (2).
- Sichtrad nach Anspruch 1, dadurch gekennzeichnet, daß die vordere Schaufelwand (8) in einem Winkel (α) größer als 45° und die hintere Schaufelwand (9) in einem Winkel (β) kleiner als 45° geneigt ist.
- Sichtrad nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die vordere Schaufelwand (8) in einem Winkel (α) zwischen 50° und 80°, vorzugsweise zwischen 60° und 70° zur radialen Richtung (10) geneigt ist.
- Sichtrad nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die hintere Schaufelwand (9) in einem Winkel (β) zwischen 30° und 45°, vorzugsweise etwa 40°, zur radialen Richtung (10) geneigt ist.
- Sichtrad nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die vordere Schaufelwand (8) und die hintere Schaufelwand (9) in einem vom radial außen liegenden Schaufelende (6) entfernten Bereich zur radialen Richtung (10) hin gekrümmt sind.
- Sichtrad nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Sichtradschaufeln (5) in ihrem Mittelbereich einen stärkeren Querschnitt aufweisen als im Bereich des radial außen liegenden Schaufelendes (6) und des radial innen liegenden Schaufelendes (14).
- Sichtrad nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die vordere Schaufelwand (8) der Sichtradschaufeln (5) im Bereich des radial innen liegenden Endes (14) mit Bezug zur radialen Richtung (10) in einem Winkel (γ) zwischen 10° und 40°, vorzugsweise zwischen 20° und 30° in Drehrichtung (7) geneigt ist.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES00890260T ES2220385T3 (es) | 2000-08-28 | 2000-08-28 | Rueda separadora. |
DE50006828T DE50006828D1 (de) | 2000-08-28 | 2000-08-28 | Sichtrad |
EP00890260A EP1184090B1 (de) | 2000-08-28 | 2000-08-28 | Sichtrad |
AT00890260T ATE269174T1 (de) | 2000-08-28 | 2000-08-28 | Sichtrad |
US09/938,660 US6644478B2 (en) | 2000-08-28 | 2001-08-27 | Separating wheel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00890260A EP1184090B1 (de) | 2000-08-28 | 2000-08-28 | Sichtrad |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1184090A1 EP1184090A1 (de) | 2002-03-06 |
EP1184090B1 true EP1184090B1 (de) | 2004-06-16 |
Family
ID=8175961
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00890260A Expired - Lifetime EP1184090B1 (de) | 2000-08-28 | 2000-08-28 | Sichtrad |
Country Status (5)
Country | Link |
---|---|
US (1) | US6644478B2 (de) |
EP (1) | EP1184090B1 (de) |
AT (1) | ATE269174T1 (de) |
DE (1) | DE50006828D1 (de) |
ES (1) | ES2220385T3 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10261448A1 (de) * | 2002-12-31 | 2004-07-29 | Nied, Roland, Dr.-Ing. | Beschaufelter Sichtrotor für Windsichter |
CN103480577A (zh) * | 2013-09-30 | 2014-01-01 | 阳承君 | 一种分级机的叶轮 |
DE102016106588B4 (de) * | 2016-04-11 | 2023-12-14 | Neuman & Esser Process Technology Gmbh | Sichter |
US10744534B2 (en) * | 2016-12-02 | 2020-08-18 | General Electric Technology Gmbh | Classifier and method for separating particles |
JP2022156406A (ja) * | 2021-03-31 | 2022-10-14 | 三菱重工業株式会社 | 分級機及び発電プラント並びに分級機の運転方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE246049C (de) | 1911-03-02 | 1912-04-24 | ||
US2281318A (en) * | 1939-12-09 | 1942-04-28 | Gen Electric | Bladed structure |
US2453593A (en) * | 1946-01-11 | 1948-11-09 | Stratford Dev Corp | Apparatus for separating entrained solids from gases |
NL97925C (de) * | 1955-06-28 | |||
DE2967096D1 (en) * | 1978-02-28 | 1984-08-16 | Fred Mellor | Fluid/particle separator unit |
DD246049A1 (de) * | 1986-02-14 | 1987-05-27 | Dessau Zementanlagenbau Veb | Verfahren und vorrichtung zur kontinuierlichen sichtung feinkoerniger feststoffe bei trennkorngroessen kleiner 60 my |
JPH0751630A (ja) * | 1993-08-19 | 1995-02-28 | Mitsubishi Heavy Ind Ltd | 竪型ローラミルの分級装置 |
AT404234B (de) * | 1996-07-08 | 1998-09-25 | Pmt Gesteinsvermahlungstechnik | Sichtrad für einen windsichter |
DE19743491C2 (de) * | 1996-10-04 | 2003-03-20 | Schmidt & Co Gmbh & Co Kg | Windsichter mit Sichtrotor und Verfahren zur Trennung von Kornklassen |
US6228151B1 (en) * | 1999-08-18 | 2001-05-08 | G.B.D. Corp. | Apparatus and method for separating particles from a cyclonic fluid flow |
US6224656B1 (en) * | 1999-10-14 | 2001-05-01 | Sankyo Rayjac Co., Ltd. | Cleaner for both dry and wet use having a moveable ring connected to a fan, the moveable ring having circumferential ribs |
-
2000
- 2000-08-28 AT AT00890260T patent/ATE269174T1/de active
- 2000-08-28 DE DE50006828T patent/DE50006828D1/de not_active Expired - Lifetime
- 2000-08-28 ES ES00890260T patent/ES2220385T3/es not_active Expired - Lifetime
- 2000-08-28 EP EP00890260A patent/EP1184090B1/de not_active Expired - Lifetime
-
2001
- 2001-08-27 US US09/938,660 patent/US6644478B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE50006828D1 (de) | 2004-07-22 |
US6644478B2 (en) | 2003-11-11 |
US20020033357A1 (en) | 2002-03-21 |
EP1184090A1 (de) | 2002-03-06 |
ATE269174T1 (de) | 2004-07-15 |
ES2220385T3 (es) | 2004-12-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2001045849A1 (de) | Mühlensichter | |
EP3442721B1 (de) | Sichter | |
DE102016121927B3 (de) | Sichter und Mühle mit einem Sichter | |
EP0638365B2 (de) | Verfahren und Vorrichtung zur Trennung eines feinkörnigen Feststoffes in zwei Kornfraktionen | |
EP0983802B1 (de) | Sichtrad für einen Zentrifugalkraft-Windsichter | |
EP1184090B1 (de) | Sichtrad | |
EP0818249B1 (de) | Sichtrad für einen Windsichter | |
EP4059625A1 (de) | Vorrichtung und verfahren zur sichtung von staubförmigen gütern | |
EP3925709B1 (de) | Fliehkraftsichter mit speziellem sichterrad | |
DE19743491C2 (de) | Windsichter mit Sichtrotor und Verfahren zur Trennung von Kornklassen | |
DE4418195B4 (de) | Sichter mit tangentialem Grobgutaustrag | |
DE19629924C2 (de) | Vorrichtung und Verfahren zur Trennung von Teilchenströmen | |
DE202017105629U1 (de) | Dynamischer Sichter | |
DE10261448A1 (de) | Beschaufelter Sichtrotor für Windsichter | |
AT396657B (de) | Windsichter zur sichtung von schüttgütern feinster körnung | |
DE4025458C2 (de) | Verfahren und Vorrichtung zum Spiralwindsichten in Sichtern mit beschaufelten Rotoren | |
EP1276569B1 (de) | Verfahren zum sichten von sichtgut mit einem zentrifugal-windsichter | |
DE1607642A1 (de) | Verfahren und Vorrichtung zum Abtrennen einer Grobfraktion aus einem pneumatisch gefoerderten Schuettgutstrom | |
DE2426295C3 (de) | Spiralwindsichter | |
EP4059624A1 (de) | Vorrichtung und verfahren zur sichtung von staubförmigen gütern | |
DE10361609A1 (de) | Sichtrotor mit von außen nach innen durchströmten Strömungskanälen zwischen radialgerichteten Rotorschaufeln für Windsichter | |
DE2431473C3 (de) | Windsichter mit einem ebenen Streuteller | |
DE1507688B1 (de) | Verfahren zur kontinuierlichen Sichtung koernigen Gutes auf trockenem Wege | |
DE10044102C2 (de) | Sichtrad für Windsichter | |
DD290989A7 (de) | Verfahren und vorrichtung zur gewinnung feinster koernungen durch windsichtung |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
17P | Request for examination filed |
Effective date: 20020821 |
|
AKX | Designation fees paid |
Free format text: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040616 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040616 Ref country code: IE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040616 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040616 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REF | Corresponds to: |
Ref document number: 50006828 Country of ref document: DE Date of ref document: 20040722 Kind code of ref document: P |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: GERMAN |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040828 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040831 Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040831 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040831 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040831 |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20040812 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040916 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040916 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040916 |
|
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2220385 Country of ref document: ES Kind code of ref document: T3 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
ET | Fr: translation filed | ||
BERE | Be: lapsed |
Owner name: KEUSCHNIGG, JOSEF, DIPL.-ING. Effective date: 20040831 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20050317 |
|
BERE | Be: lapsed |
Owner name: *KEUSCHNIGG JOSEF Effective date: 20040831 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20041116 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20120829 Year of fee payment: 13 Ref country code: ES Payment date: 20120612 Year of fee payment: 13 Ref country code: FR Payment date: 20120711 Year of fee payment: 13 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20130925 Year of fee payment: 14 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20140430 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130828 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130902 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20141015 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130829 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20140828 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140828 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20190828 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20190719 Year of fee payment: 20 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 50006828 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK07 Ref document number: 269174 Country of ref document: AT Kind code of ref document: T Effective date: 20200828 |