EP0460490A2 - Séparateur pneumatique - Google Patents

Séparateur pneumatique Download PDF

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Publication number
EP0460490A2
EP0460490A2 EP91108600A EP91108600A EP0460490A2 EP 0460490 A2 EP0460490 A2 EP 0460490A2 EP 91108600 A EP91108600 A EP 91108600A EP 91108600 A EP91108600 A EP 91108600A EP 0460490 A2 EP0460490 A2 EP 0460490A2
Authority
EP
European Patent Office
Prior art keywords
classifier
classifying
wheels
air
housing
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
EP91108600A
Other languages
German (de)
English (en)
Other versions
EP0460490B1 (fr
EP0460490A3 (en
Inventor
Frank Fischer-Helwig
Albert Süssegger
Albrecht Dr. Wolter
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.)
Kloeckner Humboldt Deutz AG
Original Assignee
Kloeckner Humboldt Deutz AG
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Filing date
Publication date
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Application filed by Kloeckner Humboldt Deutz AG filed Critical Kloeckner Humboldt Deutz AG
Publication of EP0460490A2 publication Critical patent/EP0460490A2/fr
Publication of EP0460490A3 publication Critical patent/EP0460490A3/de
Application granted granted Critical
Publication of EP0460490B1 publication Critical patent/EP0460490B1/fr
Anticipated expiration legal-status Critical
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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 classifier, in particular rod basket classifier with at least two classifier wheels for classifying granular material in at least three fractions, consisting of a substantially vertically arranged housing with classifier air supply and classifier material supply as well as classifier air discharge and discharge for the fine and coarse material.
  • the object of the invention is a further improvement of the above-mentioned classifier, particularly with regard to the structural design and the mode of operation.
  • the classifying wheels are mounted separately in the housing and can be driven independently of one another. This enables the classifier wheels to be driven at different speeds and / or with mutually opposite directions of rotation and thus an optimal setting of the classifier on the item to be viewed.
  • a crop distributor plate is arranged on the outer classifier wheel and is loaded with the feed material from above.
  • At least one further line of sight air is connected below the classifying wheels on the housing and opens from below into the free space between the classifying wheels.
  • the sifter for sifting granular material consists of a substantially vertically standing housing (1) with nested wheels concentrically nested therein and rotatable at a distance from one another (2, 3, and 4).
  • the inner classifier wheel (2) is firmly connected to a central drive shaft (5) and the outer classifier wheels (3 and 4) are rotatably supported thereon, as well as with each other, by means of support bearings (6 and 7).
  • the classifying wheels (3 and 4) are connected to hollow shafts (8 and 9) which in turn are held so as to be rotatable relative to the central shaft (5) and with one another in bearings (10 and 11).
  • the classifying wheels (2, 3, and 4) are very advantageously equipped with rod baskets (12, 13 and 14), the openings of which decrease between the rods (not shown in the drawing) for the passage of the visible air from the outer rod basket to the inner neighboring rod basket are trained. Compensation for the passage area for the classifying air, which decreases from the outside inwards with the same length of the classifying wheels, can be created by the length of the classifying wheels increasing from the outside in, so that the rate of passage of the classifying air for all classifying wheels either remains approximately the same or even decreases.
  • the thickness of the basket bars can be varied from inside to outside.
  • a line (15) opening into the classifier housing (1) is arranged for the supply of classifying air, with air-guiding elements that can be adjusted and are known per se, not shown, while a line (16) is provided below the innermost classifier wheel (2) for the removal of classifying air from the classifier.
  • openings (17) at the top of the classifier housing for supplying the material to be sifted and in the lower area immediately below the classifier wheels (2, 3 and 4), channels (18, 19 and 20) which run obliquely downwards for the discharge of those in the classifier separated grain fractions arranged.
  • the inner clear width of the channels (18 and 19) is here exactly on the distance between the rod baskets (12, 13 and 14) located or free annular space, so that any Mixing between the grain fractions already separated from the classifying air stream and separated from one another is avoided with certainty.
  • the classifying wheels (2, 3 and 4) are rotated by means of a drive device, not shown in the drawing, which is connected to the shafts (5, 8 and 9) . Sighting air is then fed to the sifter through line (15) and the material to be sifted is fed to the sifter in the direction of arrow (21) from above through openings (17).
  • the sighted material is captured by the sifting air flow and taken along by it in the direction of the arrow (22), due to the increasing inward circulation speed of the rod baskets (14, 13) and the rod basket (12) for separating the feed material into three fractions, namely in Coarse goods (arrow 23), medium goods (arrow 24) and fines (arrow 25) that fall down into the channels (20, 19 and 18) and are discharged separately from the classifier.
  • the from the sifting air transported into the interior of the rod basket (12) and discharged from there via the line (16) to the outside represents the fourth fraction, the finest fraction, which in a suitable separate device, e.g. B. filter or cyclone, separated from the classifying air and can be obtained in this way.
  • a suitable separate device e.g. B. filter or cyclone
  • a further classifying air line (26) is connected to the housing (1) of the classifier, specifically below the line (15), with valves Guide branch lines (27, 28, 29) into the channels (18, 19, 20).
  • valves Guide branch lines (27, 28, 29) are connected to the housing (1) of the classifier, specifically below the line (15), with valves Guide branch lines (27, 28, 29) into the channels (18, 19, 20).
  • branch lines (27, 28, 29) more or less additional secondary air can be introduced into the channels (18, 19, 20) with the help of the valves, as required, which then counteracts the fractions (23, 24, 25) flows upwards into the free space between the classifying wheels (2, 3, 4), from where it reaches the interior of the rod basket (12) together with the classifying air flow (22) and from there via the line (16) is discharged to the outside.
  • the fraction (23, 24, 25) which is separated out in the classifier and falls down is very advantageously subjected to an after-inspection by the secondary sifting air flowing from the bottom up, any missing grain which is found in the down-falling fraction (23, 24, 25), recorded with certainty and separated from the group.
  • the separator's sharpness can be significantly improved in this way.
  • a crop distributor plate (30) is arranged on the outer classifier wheel (4) at the top and is loaded with the feed material to be sifted (arrow 31) from above.
  • the feed material is grasped by the distributor plate (30) and thrown approximately radially outwards.
  • the feed material thrown outwards from the distributor plate (30) hits a baffle ring (32) arranged in the classifier housing (1) at a distance from the distributor plate (30), from which it falls downward into the classifying air stream (22) in the direction of the arrow (33) .
  • the agglomerates or coarser goods that are still present in the feed material are comminuted or disagglomerated before they reach the classifying air stream (22) .
  • the distributor plate (30) in the outer area can additionally be equipped with conventional centrifugal blades or percussion elements.
  • the feed material pretreated in this way passes into the space between the sight air guide elements (34) and the guide elements or rods of the rod basket (14) of the outer classifier wheel (4), where it is caught by the sight air flow (arrows 22) and by it in the direction of the arrow (22 ) carried inwards and is separated from one another in three fractions in the operating mode already described above in connection with the classifier according to FIG. 1.
  • the classifier shown in FIG. 2 differs in its other components, in particular with regard to the design and arrangement of the classifying wheels (2, 3, 4), the drive, the supply and removal of classifying air as well as the supply of primary and secondary air from that in FIG 1 does not distinguish between the classifiers shown, for the sake of simplicity these components and drives, which are therefore identical in FIG. 2, have also been given the same reference numbers.
  • the classifier wheels (2, 3, 4) are driven from above in the classifiers shown in FIGS. 1 and 2. However, there is also the possibility of driving the classifier wheels from below, or in particular in the case of a classifier with only two classifier wheels, one classifier wheel from above and the second classifier wheel from below. In this connection, at least the classifying air discharge (16) can then be moved upwards or upwards from the classifier. In addition, it may also be expedient to carry out the discharge of the middle fraction (arrow 24) and / or the discharge of the fine fraction (arrow 25) by subtracting a partial air stream.
  • the classifier according to the invention can also advantageously be used and operated as a so-called two-section classifier in the partial final grinding of cement clinker.
  • the cement clinker which is pressed into flakes in a high-pressure roller press and then deagglomerated, is fed to the classifier shown in FIG. 2 from above in the direction of the arrow (31).
  • the first fraction obtained in the classifier namely the coarse material (arrow 23) is returned to the high-pressure roller press, while the medium material (arrow 24) is used in a post-grinding unit, e.g. B. abandoned ball mill and is accordingly comminuted in this.
  • the remilled material is then either fed to the classifier from above (arrow 35) through corresponding openings (36, 37) in the classifier housing and material distributor plate (30) and between the free space through which the classifying air flows the classifying wheels (3) and (4) introduced and sifted therein or directly mixed into the finished product.
  • a third, from the sight air through the basket rods of the classifying wheel (2) The finest fraction carried inside is then discharged as a third finished product via the classifying air outlet (16).
  • the second fraction is discharged from the classifier as a finished product with the classifying air flow and separated from the classifying air in a separator (filter) connected to the classifier.
  • a separator filter
  • an annular web (38) is attached to the material distributor plate (30) behind the openings (37).
  • the classifying wheels (2, 3 and 4) can be driven in the classifiers shown in the drawing figures as required, with the same direction of rotation and the same or different circulation speed or also with the opposite direction of rotation and the same or different circulation speed in order to optimally adapt the classifier to the material to be viewed or z. B. crushing and / or special deagglomeration effects.
  • the classifier according to the invention for classifying particularly fine-grained material into several fractions, with gases, such as, for. B. argon and the like are used.
  • the rods can be profiled accordingly, as is known, for example, from turbine construction.
  • the free openings between the bars for the passage of the viewing air from the respective outer bar basket to the respective inner adjacent bar basket can be designed by adapting the shape of the bar, the number of bars and the height of the individual bar baskets instead of increasingly decreasing or essentially constant.
  • any number of classifier wheels according to the invention can be nested concentrically in the classifier housing and arranged at a corresponding distance from one another and operated with different directions of rotation.
  • the crushing effect can also be intensified by the arrangement of scattering elements and / or impact elements on the crop distributor plate (30).

Landscapes

  • Combined Means For Separation Of Solids (AREA)
EP91108600A 1990-06-08 1991-05-27 Séparateur pneumatique Expired - Lifetime EP0460490B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4018361 1990-06-08
DE4018361 1990-06-08
DE4112018A DE4112018A1 (de) 1990-06-08 1991-04-12 Sichter
DE4112018 1991-04-12

Publications (3)

Publication Number Publication Date
EP0460490A2 true EP0460490A2 (fr) 1991-12-11
EP0460490A3 EP0460490A3 (en) 1992-01-15
EP0460490B1 EP0460490B1 (fr) 1994-10-19

Family

ID=25893964

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91108600A Expired - Lifetime EP0460490B1 (fr) 1990-06-08 1991-05-27 Séparateur pneumatique

Country Status (4)

Country Link
US (1) US5158182A (fr)
EP (1) EP0460490B1 (fr)
JP (1) JPH05245442A (fr)
DE (2) DE4112018A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0492062A2 (fr) * 1990-12-20 1992-07-01 Krupp Polysius Ag Séparateur pneumatique
EP0734787A1 (fr) * 1995-03-28 1996-10-02 OMYA GmbH Montage de l'arbre d'un séparateur pneumatique centrifuge
WO2013107834A1 (fr) * 2012-01-20 2013-07-25 Khd Humboldt Wedag Gmbh Séparateur à panier à barres

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4223762B4 (de) * 1992-07-18 2009-07-23 Khd Humboldt Wedag Gmbh Sichtereinrichtung zum Sichten von körnigem Gut und Umlaufmahlanlage mit Einschaltung einer solchen Sichtereinrichtung
DE19629924C2 (de) * 1995-08-02 2001-04-12 Herbert Horlamus Vorrichtung und Verfahren zur Trennung von Teilchenströmen
DE19541797A1 (de) * 1995-11-09 1997-05-15 Temic Bayern Chem Airbag Gmbh Gasgenerator mit Treibgasstrom-Temperaturregelung und Verfahren zu seinem Betrieb
EP0836893B1 (fr) * 1996-10-18 2002-12-11 HOSOKAWA ALPINE Aktiengesellschaft & Co. OHG Trieuse pneumatique à axe vertical
DE19643042C2 (de) * 1996-10-18 1998-07-30 Hosokawa Alpine Ag Vertikalachsiger Windsichter
DE19854855C2 (de) 1998-11-27 2002-01-17 Hosokawa Alpine Ag & Co Windsichter
DE10044104C2 (de) * 2000-09-07 2003-04-10 Roland Nied Windsichter
DE102005045591A1 (de) * 2005-09-23 2007-03-29 Polysius Ag Vorrichtung zum Sichten von Aufgabegut
DK2125229T4 (da) * 2007-01-10 2021-02-22 Koeppern & Co Kg Maschf Luftseparator til formindskede materialer
US7993550B2 (en) * 2007-10-25 2011-08-09 Dan Chrzanowski Method of recycling filter media
US7854406B2 (en) * 2008-01-10 2010-12-21 Koppern Equipment, Inc. Air separator for comminuted materials
FR2976194B1 (fr) * 2011-06-08 2014-01-10 Pa Technologies Separateur dynamique pour materiaux pulverulents
DE102011055762B4 (de) 2011-11-28 2014-08-28 Maschinenfabrik Köppern GmbH & Co KG Vorrichtung zum Sichten von körnigem Gut und Mahlanlage
DE102013101517A1 (de) * 2013-02-15 2014-08-21 Thyssenkrupp Resource Technologies Gmbh Sichter und Verfahren zum Betreiben eines Sichters
DE102014015161A1 (de) * 2014-10-14 2016-04-14 Khd Humboldt Wedag Gmbh Anlage zum Mahlen und Sichten von Zementklinker
US9440262B2 (en) * 2014-11-07 2016-09-13 Rec Silicon Inc Apparatus and method for silicon powder management
US10287171B2 (en) 2016-05-05 2019-05-14 Rec Silicon Inc Tumbling device for the separation of granular polysilicon and polysilicon powder
US9682404B1 (en) 2016-05-05 2017-06-20 Rec Silicon Inc Method and apparatus for separating fine particulate material from a mixture of coarse particulate material and fine particulate material
DE102017203812A1 (de) 2017-03-08 2018-09-13 Thyssenkrupp Ag Sichteinrichtung und Verfahren zum Sichten eines Materialstroms
CN109513530A (zh) * 2018-11-22 2019-03-26 海城市军刚中档镁砂有限公司 一种电熔镁砂干燥方法及装置

Citations (6)

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Publication number Priority date Publication date Assignee Title
DE3038625A1 (de) * 1980-10-13 1982-05-19 Fa. Christian Pfeiffer, 4720 Beckum Drehluft-fliehkraft-streusichter
GB2176426A (en) * 1985-06-15 1986-12-31 Kloeckner Humboldt Deutz Ag Classifying granular material
FR2597766A1 (fr) * 1986-04-28 1987-10-30 Onoda Cement Co Ltd Dispositif pour le tri par centrifugation de matieres pulverulentes
EP0250747A2 (fr) * 1986-06-25 1988-01-07 Christian Pfeiffer Maschinenfabrik GmbH & Co. Kommanditgesellschaft Procédé et dispositif de séparation pneumatique
DE3838871A1 (de) * 1988-01-22 1989-08-03 Nied Roland Windsichter
SU1549616A1 (ru) * 1988-04-11 1990-03-15 Среднеазиатский Научно-Исследовательский И Проектно-Конструкторский Институт Пищевой Промышленности Устройство дл переработки волокнистых отходов маслосодержащего сырь

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US3275140A (en) * 1963-04-11 1966-09-27 Smidth & Co As F L Air separator with fluidized discharge
DE2364568A1 (de) * 1973-12-24 1975-06-26 Kloeckner Humboldt Deutz Ag Kreiselsichter mit drehverteiler
DE2527340A1 (de) * 1975-06-19 1976-12-30 Kloeckner Humboldt Deutz Ag Verfahren und vorrichtung zur aussichtung von feingut aus einem gutsstrom in einem umluftsichter
GB2041251B (en) * 1978-11-24 1982-10-20 Hosolawa Funtai Kogaku Kenkyus Pneumatic classifier
US4296864A (en) * 1979-07-17 1981-10-27 Onoda Cement Co., Ltd. Air classifier
DD241869A1 (de) * 1985-10-21 1987-01-07 Dessau Zementanlagenbau Veb Vorrichtung zum sichten feinster koernungen
DE3539512A1 (de) * 1985-11-07 1987-05-14 Krupp Polysius Ag Sichter
SU1475734A1 (ru) * 1987-03-24 1989-04-30 Сумской филиал Харьковского политехнического института им.В.И.Ленина Классификатор порошкообразных материалов
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Publication number Priority date Publication date Assignee Title
DE3038625A1 (de) * 1980-10-13 1982-05-19 Fa. Christian Pfeiffer, 4720 Beckum Drehluft-fliehkraft-streusichter
GB2176426A (en) * 1985-06-15 1986-12-31 Kloeckner Humboldt Deutz Ag Classifying granular material
FR2597766A1 (fr) * 1986-04-28 1987-10-30 Onoda Cement Co Ltd Dispositif pour le tri par centrifugation de matieres pulverulentes
EP0250747A2 (fr) * 1986-06-25 1988-01-07 Christian Pfeiffer Maschinenfabrik GmbH & Co. Kommanditgesellschaft Procédé et dispositif de séparation pneumatique
DE3838871A1 (de) * 1988-01-22 1989-08-03 Nied Roland Windsichter
SU1549616A1 (ru) * 1988-04-11 1990-03-15 Среднеазиатский Научно-Исследовательский И Проектно-Конструкторский Институт Пищевой Промышленности Устройство дл переработки волокнистых отходов маслосодержащего сырь

Non-Patent Citations (1)

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Title
Soviet Inventions Illustrated, Section Ch, Week 9106, 27. Maerz 1991, Derwent Publications Ltd., London, GB; Class D, AN 91-042163/06; & SU,A,01 549 616 (C ASIA FOOD IND RES (TSPO)) 15. Maerz 1990, Zusammenfassung. *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0492062A2 (fr) * 1990-12-20 1992-07-01 Krupp Polysius Ag Séparateur pneumatique
EP0492062A3 (en) * 1990-12-20 1992-10-14 O&K Orenstein & Koppel Ag Air separator
EP0734787A1 (fr) * 1995-03-28 1996-10-02 OMYA GmbH Montage de l'arbre d'un séparateur pneumatique centrifuge
WO2013107834A1 (fr) * 2012-01-20 2013-07-25 Khd Humboldt Wedag Gmbh Séparateur à panier à barres

Also Published As

Publication number Publication date
EP0460490B1 (fr) 1994-10-19
DE4112018A1 (de) 1991-12-12
EP0460490A3 (en) 1992-01-15
DE59103263D1 (de) 1994-11-24
JPH05245442A (ja) 1993-09-24
US5158182A (en) 1992-10-27

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