EP0115057B1 - Séparateur pneumatique pour le domaine des matières fines - Google Patents

Séparateur pneumatique pour le domaine des matières fines Download PDF

Info

Publication number
EP0115057B1
EP0115057B1 EP83113017A EP83113017A EP0115057B1 EP 0115057 B1 EP0115057 B1 EP 0115057B1 EP 83113017 A EP83113017 A EP 83113017A EP 83113017 A EP83113017 A EP 83113017A EP 0115057 B1 EP0115057 B1 EP 0115057B1
Authority
EP
European Patent Office
Prior art keywords
classifying
wheels
air
axis
air classifier
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
Application number
EP83113017A
Other languages
German (de)
English (en)
Other versions
EP0115057A3 (en
EP0115057A2 (fr
Inventor
Roland Dr.-Ing. Nied
Herbert Dipl.-Ing. Horlamus
Fritz Kaiser
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.)
Hosokawa Alpine AG
Original Assignee
Alpine AG
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 Alpine AG filed Critical Alpine AG
Priority to AT83113017T priority Critical patent/ATE27556T1/de
Publication of EP0115057A2 publication Critical patent/EP0115057A2/fr
Publication of EP0115057A3 publication Critical patent/EP0115057A3/de
Application granted granted Critical
Publication of EP0115057B1 publication Critical patent/EP0115057B1/fr
Expired legal-status Critical Current

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 an air classifier, consisting of a vertical-axis viewing chamber with a cylindrical upper part and a funnel-shaped lower part and a viewing device arranged in the upper part with a rotating classifying wheel against the direction of centrifugation of the classifying air from the outside inwards, which is arranged in a ring shape and runs parallel to the axis of rotation Buckets has, the visual goods either together with the incoming air flowing through the lower opening of the lower part or directly into the viewing chamber, the coarse material is discharged through the lower opening of the lower part and the fine material together with the visible air from the classifying wheel through an upward from the Sifter emerging outlet connector is withdrawn.
  • DE-PS 1757582 shows a wind separator of the same type with direct feeding of the material to be classified into the viewing chamber.
  • the separation limit that can be achieved with such air classifiers depends essentially on the diameter and the peripheral speed of the classifying wheel. For a given size, the lower the separation limit, the higher the peripheral speed or speed of the classifying wheel is selected. Increasing the wheel speed also means a rapid increase in wear and energy consumption, so that economical work is only possible down to a certain separation limit.
  • the separation limit - if the circumferential speed of the classifying wheel and the radial speed of the classifying air are kept constant on entering the classifying wheel at the classifying wheel circumference - with increasing classifying wheel diameter and thus correspondingly increasing throughput, also larger, i.e. it is shifted to a larger grain area. Therefore, if a large classifying wheel is to cut just as finely as a small one, the peripheral speed must also be increased. However, this means that in addition to increased wear and energy consumption, strength and storage problems also arise.
  • the invention is therefore based on the object of providing an air classifier of the type required, with which high throughputs can be achieved economically, even in the finest range, while avoiding the disadvantages mentioned above.
  • This object is achieved in that at least two identical, individually driven classifying wheels designed for fine classifying are arranged as classifying devices in the classifying chamber of the air classifier.
  • the classifying wheels can be arranged in such a way that their axes of rotation are arranged in a plane perpendicular to the classifier axis or on the surface of an imaginary circular cone, the axis of which is the classifier axis.
  • the arrangement of a centrally located outlet connection for classifying air and fine material common to all classifying wheels is particularly simple.
  • an arrangement of the classifying wheels can also be advantageous, in which the axes of rotation of the classifying wheels run in a plane perpendicular to the classifying axis and parallel to one another and adjacent classifying wheels are arranged offset from one another by at least the classifying wheel height. Any number of classifying wheels can be accommodated in the smallest possible space without neighboring classifying wheels being able to influence each other through the coarse material they each throw off.
  • Classifying wheels are preferably used which, in a manner known per se, have a multiplicity of narrow blades which run radially or obliquely to the classifying wheel circumference, because their spraying grain strength and their insensitivity to fluctuations in the quantity and distribution of the task size make them particularly suitable for solving the task at hand.
  • the exemplary embodiment shows a wind sifter 1 with a vertical axis 2, the viewing chamber of which consists of the cylindrical upper part 3 and the funnel-shaped lower part 4.
  • a cylindrical container 5 connected to the funnel-shaped lower part 4 with an attached outlet funnel 6 is provided for the air supply, the outer diameter of which is larger than the diameter of the lower opening of the funnel-shaped lower part 4, and into which the classifying air line 14 opens tangentially.
  • four classifying wheels 7 are arranged in a star shape, the axes of rotation 8 of which lie in a plane perpendicular to the classifying axis 2 and extend radially to the latter.
  • the classifying wheels 7 are designed as paddle wheels det, which have a plurality of narrow, radially or obliquely to the sight wheel circumference blades 9. Each classifying wheel 7 is seated on a shaft 10 which is mounted in a bearing housing 11 which is laterally attached to the upper part 3. Each classifying wheel 7 is driven by a three-phase motor via pulleys (not shown here), all three-phase motors being controlled together by a frequency converter.
  • the flow pattern of the incoming sight air is determined by the guide vanes 15 which are aligned parallel to the classifier axis 2.
  • An airtight discharge element e.g. a cell lock (not shown) for the separated coarse material falling down is attached to the flange of the discharge funnel 6 during operation of the air classifier 1.
  • a guide surface 16 is arranged concentrically to the classifier axis within the sighting chamber 3, 4, which is designed at the bottom as a cylinder jacket and at the top as an upwardly widening truncated cone jacket, the upper edge of which runs at a distance from the classifying wheels 7.
  • the cylinder diameter corresponds to the diameter of the lower opening of the lower part 4.
  • the guide surface 16 is connected to the upper part 3 via three struts 17. A height adjustability to adapt to different operating conditions is not provided in the embodiment shown here.
  • the dosing screw 18 attached to the side of the upper part 3 is used for supplying visible material.
  • the upper part 3 is designed divided on the flange 19, so that the lower part of the upper part 3 with the guide surface 16, the lower part 4, the cylindrical container 5 and the discharge funnel 6 can be removed as a continuous component for inspection or cleaning purposes.
  • the fine classifier formed by the classifying wheels 7, the separating limit of which is set independently of the quantity and grain distribution of the goods offered, works together with a simple coarse classifier located in the area of the guide vanes 15, the separating limit of which depends very much on the material load in such a way that the separation limit moves into the fine range with increasing load and vice versa.
  • coarse material automatically accumulates in the viewing chamber until the separation limit of the coarse classifier corresponds to that of the classifying wheels under a certain good load, which means that the continuous operating state is reached.

Landscapes

  • Combined Means For Separation Of Solids (AREA)
  • Cell Separators (AREA)

Claims (8)

1. Séparateur à air (1) comprenant une chambre de séparation à axe vertical avec partie supérieure cylindrique et partie inférieure conique ainsi qu'un dispositif de séparation avec une roue tournante disposée à la partie supérieure, laquelle roue de séparation est traversée par l'air de séparation de l'extérieur vers l'intérieur et contrairement au sens de centrifugation. La roue de séparation est constituée par des palettes (9) formant une couronne et disposées parallèlement par rapport à l'axe de rotation (8) près duquel le produit à séparer est introduit dans la chambre de séparation soit directement, soit avec l'air de séparation pénétrant par l'ouverture inférieure de la partie inférieure, les particules grossières étant évacuées par l'ouverture inférieure de la partie inférieure (4) tandis que les grains fins sont évacués de la roue avec l'air de séparation par une tubulure de décharge (13) disposée à la partie supérieure, ledit séparateur étant caractérisé par le fait que le dispositif de séparation comprend au minimum deux roues de séparation identiques (7) conçues pour la séparation fine, disposées parallèlement à l'égard du mode opératoire et entraînées séparément.
2. Séparateur à air selon la revendication 1 caractérisé par le fait que les axes de rotation (8) des roues de séparation (7) sont disposés dans un même plan et verticalement par rapport à l'axe (2) du séparateur.
3. Séparateur à air selon la revendication 2 caractérisé par le fait que les axes de rotation (8) des roues de séparation (7) sont disposés radialement par rapport à l'axe (2) du séparateur.
4. Séparateur à air selon la revendication 1 caractérisé par le fait que les axes de rotation (8) des roues de séparation (7) sont disposés sur la paroi d'un cône de révolution fictif dont l'axe serait l'axe (2) du séparateur.
5. Séparateur à air selon la revendication 3 ou 4 caractérisé par le fait que les roues de séparation (7) sont munies d'une tubulure centrale commune (13) destinée à l'évacuation de l'air de séparation et des grains fins.
6. Séparateur à air selon la revendication 2 caractérisé par le fait que les axes de rotation (8) des roues de séparation (7) sont parallèles l'un par rapport à l'autre et que les roues de séparation sont désaxées l'une par rapport à l'autre et qu'elles sont éloignées l'une de l'autre d'au moins leur hauteur.
7. Séparateur à air selon une des revendications 1 à 6 caractérisé par le fait que les roues de séparation (7) sont constituées par un grand nombre de palettes étroites (9) disposées radialement ou obliquement par rapport à la circonférence des roues.
8. Séparateur à air selon une des revendications 1 à 7 caractérisé par le fait qu'un dispositif de réglage commun aux roues de séparation (7) permet de régler la vitesse de rotation et de la maintenir constante en fonction de la limite de séparation requise.
EP83113017A 1983-01-29 1983-12-23 Séparateur pneumatique pour le domaine des matières fines Expired EP0115057B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83113017T ATE27556T1 (de) 1983-01-29 1983-12-23 Windsichter fuer den feinstbereich.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3303078 1983-01-29
DE3303078A DE3303078C1 (de) 1983-01-29 1983-01-29 Windsichter fuer den Feinstbereich

Publications (3)

Publication Number Publication Date
EP0115057A2 EP0115057A2 (fr) 1984-08-08
EP0115057A3 EP0115057A3 (en) 1985-10-30
EP0115057B1 true EP0115057B1 (fr) 1987-06-03

Family

ID=6189605

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83113017A Expired EP0115057B1 (fr) 1983-01-29 1983-12-23 Séparateur pneumatique pour le domaine des matières fines

Country Status (5)

Country Link
US (1) US4528091A (fr)
EP (1) EP0115057B1 (fr)
JP (1) JPS59142877A (fr)
AT (1) ATE27556T1 (fr)
DE (1) DE3303078C1 (fr)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3508889C1 (de) * 1985-03-13 1992-02-20 Alpine Ag, 8900 Augsburg Windsichter mit verschleissfreiem Sichtrad
DE3515026C1 (de) * 1985-04-25 1986-09-18 Fa. Christian Pfeiffer, 4720 Beckum Drehluft-Schleuderkorb-Sichter
DE3521491A1 (de) * 1985-06-14 1986-12-18 Krupp Polysius Ag, 4720 Beckum Verfahren und anlage zur feinzerkleinerung von gut
DE3521638C2 (de) * 1985-06-15 1994-03-31 Kloeckner Humboldt Deutz Ag Streuwindsichter zum Sichten von feinkörnigem Gut
DE3615494A1 (de) * 1986-05-07 1987-11-12 Omya Gmbh Zentrifugalkraftsichter
DE3621221A1 (de) * 1986-06-25 1988-01-14 Pfeiffer Fa Christian Verfahren zur windsichtung und windsichter
DD257212A1 (de) * 1987-01-22 1988-06-08 Dessau Zementanlagenbau Veb Windsichter zur sichtung von schuettguetern feinster koernung
US4793917A (en) * 1987-04-15 1988-12-27 Institut Khimii Tverdogo Tela I Pererabotki Mineralnogo Syrya Sibirskogo Otdelenia Akademii Nauk Ussr Centrifugal classifier for superfine powders
DE3838871C2 (de) * 1988-01-22 1994-10-27 Nied Roland Windsichter
DE3814458A1 (de) * 1988-04-28 1989-11-09 Krupp Polysius Ag Windsichter
EP0369399B1 (fr) * 1988-11-17 1994-08-10 Roland Dr.-Ing. Nied Séparateur pneumatique
EP0379711B1 (fr) * 1988-12-27 1992-03-18 Roland Dr.-Ing. Nied Procédé de tri de matières fines et dispositif pour mettre en oeuvre le procédé
DE4140656C1 (fr) * 1991-12-10 1992-09-10 Alpine Ag, 8900 Augsburg, De
DE4326605A1 (de) * 1993-08-07 1995-02-09 Hosokawa Alpine Ag Verfahren und Vorrichtung zur Trennung eines feinkörnigen Feststoffes in zwei Kornfraktionen
NO300257B1 (no) * 1995-04-07 1997-05-05 Sinvent As Apparat for sortering av partikkelformig materiale
DE29506015U1 (de) * 1995-04-07 1995-06-14 Hosokawa Alpine Ag, 86199 Augsburg Sichtrad für Schleuderrad-Windsichter
DE10151325B4 (de) * 2001-10-17 2006-07-27 Wester Tonbergbau Kg Windsichter
DE60218156T2 (de) * 2002-09-12 2007-11-15 Ehinger Impianti S.R.L. Partikelsortierer
DE102005001542B4 (de) * 2005-01-13 2009-06-10 Lehigh Technologies, LLC, Naples Mehrrad-Windsichter, separate Sichterradeinheit und separate Sichterkammereinheit
DE102006048850A1 (de) * 2006-10-16 2008-04-17 Evonik Degussa Gmbh Amorphe submicron Partikel
DE102006048864A1 (de) * 2006-10-16 2008-04-17 Roland Dr. Nied Verfahren zur Erzeugung feinster Partikel und Strahlmühle dafür sowie Windsichter und Betriebsverfahren davon
DE102006048865A1 (de) * 2006-10-16 2008-04-17 Roland Dr. Nied Verfahren zur Erzeugung feinster Partikel und Strahlmühle dafür sowie Windsichter und Betriebsverfahren davon
DE102013002237B3 (de) * 2013-02-11 2014-05-22 Microtec Gmbh Sichtermühle
DE202015009079U1 (de) 2015-08-27 2016-10-07 Josef Fischer Kryogenmahlvorrichtung
EP3135380B1 (fr) 2015-08-27 2017-10-11 Josef Fischer Dispositif et procédé de broyage cryogénique

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US234724A (en) * 1880-11-23 F austin prinz
US969971A (en) * 1908-10-19 1910-09-13 William J Ehrsam Grader.
US1933606A (en) * 1930-11-25 1933-11-07 Sturtevant Mill Co Air separator
US2269412A (en) * 1940-07-18 1942-01-06 Sturtevant Mill Co Air separator
GB927876A (en) * 1960-10-21 1963-06-06 Ass Portland Cement Improved mechanical air classifier
DE1167634B (de) * 1961-07-12 1964-04-09 Alpine Ag Maschinenfabrik Und Sichter mit Sichtrad
US3384238A (en) * 1966-02-17 1968-05-21 Air Sifters Inc Classifying system
DE1757582C2 (de) * 1968-05-20 1976-03-11 The Georgia Marble Co., Atlanta, .Ga. (V.St.A.) Schleuderkorb-Windsichter
DE3038625A1 (de) * 1980-10-13 1982-05-19 Fa. Christian Pfeiffer, 4720 Beckum Drehluft-fliehkraft-streusichter

Also Published As

Publication number Publication date
JPS6349548B2 (fr) 1988-10-05
ATE27556T1 (de) 1987-06-15
EP0115057A3 (en) 1985-10-30
JPS59142877A (ja) 1984-08-16
DE3303078C1 (de) 1984-05-30
EP0115057A2 (fr) 1984-08-08
US4528091A (en) 1985-07-09

Similar Documents

Publication Publication Date Title
EP0115057B1 (fr) Séparateur pneumatique pour le domaine des matières fines
EP0250747B1 (fr) Procédé et dispositif de séparation pneumatique
DE3545691C1 (de) Vorrichtung zum Klassieren von staubfoermigen Schuettguetern
US5032256A (en) Method and apparatus for air separation of material
DE3586428T2 (de) Partikelklassierer.
EP0172731B1 (fr) Classification et commande pour broyeur vertical
DE2947310C2 (de) Durchluftsichter
AT397051B (de) Verfahren und turbo-sichter zum streuwindsichten, insbesondere von zement
DE69100883T2 (de) Sichter für pulverförmige Materialien.
DE69305413T2 (de) Pulverisierungsvorrichtung
EP0545929A1 (fr) Installation pour le broyage et le tri de produits en vrac
EP3613515A1 (fr) Dispositif de nettoyage de produit en vrac pourvu de séparateur d'aire intégré ainsi que dispositif de nettoyage de produit en vrac pourvu d'un cadre de support creux
EP0484758B1 (fr) Dispositif pour la dispersion de matières
EP0472930A2 (fr) Trieur pneumatique de préférence vertical
EP1027161B1 (fr) Procede et dispositif pour le broyage a l'etat mouille de solides dans des liquides
DE3827558C2 (de) Verfahren und Vorrichtung zum Mahlen von als Suspension gefördertem Mahlgut
EP0791407A2 (fr) Séparateur pneumatique
DE3229629C2 (fr)
DE3626044C2 (fr)
DE19726303A1 (de) Pulversortiereinrichtung
DE909287C (de) Kugelquetschmuehle
DE3741650C1 (en) Apparatus for classifying dust-like bulk materials
DD208561B1 (de) Dispergiervorrichtung fuer einen statischen sichter
DE3924826A1 (de) Sichter, insbesondere stabkorbsichter, zum sichten von koernigem gut in wenigstens drei fraktionen
DE4132339C2 (de) Turbo-Fliehkraftsichter

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

Designated state(s): AT BE CH FR GB IT LI LU NL SE

RBV Designated contracting states (corrected)

Designated state(s): AT BE CH FR GB LI NL SE

17P Request for examination filed

Effective date: 19841221

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT BE CH FR GB LI NL SE

17Q First examination report despatched

Effective date: 19860714

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 FR GB LI NL SE

REF Corresponds to:

Ref document number: 27556

Country of ref document: AT

Date of ref document: 19870615

Kind code of ref document: T

ET Fr: translation filed
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
REG Reference to a national code

Ref country code: FR

Ref legal event code: CD

NLT1 Nl: modifications of names registered in virtue of documents presented to the patent office pursuant to art. 16 a, paragraph 1

Owner name: HOSOKAWA ALPINE AKTIENGESELLSCHAFT TE AUGSBURG, BO

EAL Se: european patent in force in sweden

Ref document number: 83113017.4

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Free format text: ALPINE AKTIENGESELLSCHAFT TRANSFER- HOSOKAWA ALPINE AKTIENGESELLSCHAFT & CO. OHG

Ref country code: CH

Ref legal event code: NV

Representative=s name: SCHMAUDER & PARTNER AG PATENTANWALTSBUERO

REG Reference to a national code

Ref country code: FR

Ref legal event code: CD

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20021108

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20021114

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20021118

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20021128

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20021210

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: 20021217

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20021220

Year of fee payment: 20

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 EXPIRATION OF PROTECTION

Effective date: 20031222

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20031222

Ref country code: CH

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20031222

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 EXPIRATION OF PROTECTION

Effective date: 20031223

Ref country code: AT

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20031223

BE20 Be: patent expired

Owner name: *HOSOKAWA ALPINE A.G. & CO. K.G.

Effective date: 20031223

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

EUG Se: european patent has lapsed
NLV7 Nl: ceased due to reaching the maximum lifetime of a patent

Effective date: 20031223