EP1807223B1 - Separateur incorporant une roue de separation pour trier les produits pulverulents fibreux ou granuleux - Google Patents

Separateur incorporant une roue de separation pour trier les produits pulverulents fibreux ou granuleux Download PDF

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Publication number
EP1807223B1
EP1807223B1 EP05729093.4A EP05729093A EP1807223B1 EP 1807223 B1 EP1807223 B1 EP 1807223B1 EP 05729093 A EP05729093 A EP 05729093A EP 1807223 B1 EP1807223 B1 EP 1807223B1
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EP
European Patent Office
Prior art keywords
cylinder
separator
separator according
wheel
bores
Prior art date
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Active
Application number
EP05729093.4A
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German (de)
English (en)
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EP1807223A1 (fr
Inventor
Ulf Noll
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Noll Ulf
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Individual
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B7/00Selective separation of solid materials carried by, or dispersed in, gas currents
    • B07B7/08Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/18Drum screens
    • B07B1/22Revolving drums
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B7/00Selective separation of solid materials carried by, or dispersed in, gas currents
    • B07B7/08Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
    • B07B7/083Selective 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 separator according to claim 1.
  • Air classification presents itself as a process for separating dusty, granular or fibrous goods, the separation according to the rate of descent being effected under the influence of grain shape, grain size and density.
  • a quality criterion of an air classifier is the separation effect, whereby, if possible, all particles which are larger than the separation limit are conveyed into the coarse material and smaller particles into the fine material.
  • classifier wheels come from e.g. Steel or ceramic is used, with the possibility also exists to arrange several classifying wheels in a device to achieve an increase in performance.
  • separator wheels of Al 2 O 3 or SiC in conjunction with a corresponding lining of a classifier can be achieved that iron-free powder available.
  • Conventionally used separatorizer have a substantially cylindrical shape with a bottom and a cover plate, which is usually provided in or on the bottom plate a receptacle for a motor drive, in particular for a drive shaft, such as from the document US-A-5,377,843 ,
  • the blades coming into contact with the discontinued material must be extremely resistant and resistant to abrasion, especially at high speeds, in order to achieve a technologically meaningful service life of the respective classifier wheel.
  • a classifier wheel within a flow chamber classifier head refers to the multifunctional apparatus for grinding, sifting, mixing and / or deagglomeration according to DE 100 45 160 A1 made aware.
  • a conjugaterad application which has a plurality of radially oriented blades between two opposite circular surfaces.
  • the known classifier consists of a classifier housing with a spiral outlet for fines and has a closable by a door opening, wherein the classifier wheel is rotatably adjustable mounted on the door and the door is externally connected to an electric motor drive. In this way, it is ensured that only the classifier wheel itself comes into contact with the material to be inspected and damage to the axis or the receptacle for the classifier wheel can be largely excluded.
  • a proposed raiseerrad is based on a known, substantially cylindrical body, wherein the cylindrical body has a concentric core or pin for receiving a drive shaft, preferably for a motor drive and a Variety over the cylinder circumference distributed flow openings and a fine material outlet has.
  • the cylindrical body consists of a monolithic block, wherein the cylinder jacket thickness is chosen to be much larger compared to the prior art.
  • the cylinder jacket thickness is in the range of 0.1 to 0.4, preferably 0.125 to 0.3 times the cylinder outer diameter.
  • the flow openings are designed as slots running in the cylinder longitudinal axis direction and / or a multiplicity of radially oriented bores.
  • the width of the slots is set smaller than the width of the remaining webs.
  • the slots extend, optionally interrupted by a support ring, over the length of almost the entire cylinder.
  • the bore longitudinal axes are each directed to the longitudinal axis of the cylinder in an embodiment variant.
  • the oblique arrangement or oblique orientation of the bores preferably runs in the direction of rotation of the classifier wheel.
  • the respective holes in the circumferential direction of adjacent rows of holes are arranged staggering staggered.
  • the cylindrical body has a chamfer, which can usually be designed obliquely or as a circular arc section.
  • the cylindrical body consists in a preferred embodiment of plastic, in particular a hard polymer.
  • the cylindrical body comprises a metal core insert, which in turn serves to receive a drive shaft.
  • the reactorrad can be made of a metallic or ceramic material, without departing from the spirit of the invention.
  • the invention generally relates to a classifier with a classifying wheel for separating powdered or granular goods according to the rate of descent under the influence of grain shape, grain size and density, wherein the classifier wheel consists of a substantially cylindrical body with a concentric core or pin for receiving a drive shaft and has a plurality of distributed over the cylinder circumference flow openings and a fine material outlet.
  • the classifier wheel is non-centrically arranged in the viewing space in such a way that the flow cross section from the material feed side in the direction of the fine material outlet is reduced.
  • the arrangement of the suction point is tangential to the viewing space, in particular with the above-described non-centric arrangement of the classifier wheel.
  • the further development of the classifier according to the invention accordingly creates a homogeneous flow distribution around the classifier wheel, ensures a higher degree of efficiency, leads to a lower level of wear and tear, in particular grinding balls or very coarse material in the classifier not leading to disturbances.
  • the classifier wheels shown in the embodiments have a substantially cylindrical shape with a bottom portion which is designed flange-like and with respect to the cylinder axis 2 has a steel core insert 3 for receiving a drive shaft, not shown.
  • the thickness or thickness of the cylinder jacket is very large and, for example, in the range to 0.1 to 0.4, preferably 0.125 to 0.3 times the cylinder outer diameter.
  • the flow openings are realized in the form of slots 6. Between the respective adjacent slots remain webs 7, the web width is greater than the slot width in the embodiment shown.
  • the slots are in the embodiment according to Fig. 2 interrupted by a support ring 8, so that the necessary overall stability of the classifier wheel results even with larger longitudinal dimensions.
  • the slits 6 preferably extend over the entire length of the cylindrical body, with the exception of the bottom region 1.
  • the preferred direction of rotation of the classifier wheel is in the respective left part of Fig. 1 to 3 symbolized by an arrow.
  • the slots 6 are also obliquely. This means that in contrast to the embodiment of Fig. 1 the imaginary longitudinal axes of the slots 6 do not meet on the cylinder axis 2 or cut there. With respect to an imaginary coordinate system, which has its origin on the cylinder longitudinal axis 2, the slots 6 are as shown Fig. 1 oriented at an angle of, for example, 45 °.
  • a hole-Sichterrad which also has a bottom portion 1, a cylinder longitudinal axis 2, a steel core insert 3 and an opening portion 4.
  • the cylinder jacket 5 has a relatively large thickness or wall thickness.
  • hole-like holes 9 are introduced in a modification of the first embodiment.
  • the longitudinal axes of the holes 9 may each be directed towards the longitudinal axis of the cylinder (not shown) or at a predetermined angle (see Fig. 3 , left part of the picture).
  • the bore longitudinal axes of the holes 9 are arranged obliquely at an angle, wherein the imaginary elongated bore longitudinal axes intersect outside the cylinder longitudinal axis 2.
  • the oblique orientation of the bores 9 preferably runs in the direction of rotation of the classifier wheel (see arrow illustration).
  • the skew angle of the holes 9 is in the range between 30 ° and 60 °, preferably between 40 ° and 50 °.
  • the respective holes 9 in the circumferential direction of adjacent rows of holes have a staggered arrangement, as shown in Fig. 3 , right part of picture becomes clear.
  • the cylindrical body At the drive end, the cylindrical body according to the embodiments on a chamfer 10.
  • the classifying wheels can be made of machinable steels as well as ceramics such as Al 2 O 3 , zirconium oxides, SiC or the like, but also of polyurethanes or plastics.
  • the geometries of the holes or the slots in the wheel are freely selectable in the field of theory of invention and can be realized according to the selected material types of the wheel by machining processes.
  • the percentage of defective grain in a standard wheel is between 33% and 34%; in contrast, in the case of a pinwheel according to the invention, only in the range between 30% and 32%. Despite much finer separation results in the use of the doctrine of invention, a better proportion of defective grain.
  • the separator according to the invention according to the illustration Fig. 4 is formed so that the preparerrad 80 is not arranged centrally in the viewing space 90.
  • This arrangement is such that the flow cross-section from the side 100, that is, the material feed side, to the side 110, that is reduced in the direction of fine material outlet.
  • a constant flow velocity is achieved.
  • constant conditions and a uniform application of the fines content are established around the entire circumference of the separator wheel 80. From the consistent Flow velocity results in a constant centrifugal force of the particles (point representations in the Fig. 4 ), with the result that the coarse fractions occupy a constant distance to conveyerrad 80. These coarse fractions then no longer get in contact with the preparerrad 80 and can not cause wear.
  • the suction point 120 is oriented tangentially with respect to the viewing space 90. This measure ensures that increased wear or destruction of bombarderrads 80 is excluded by direct bombardment of reformgut, Mahlkugeln or foreign parts.
  • the incoming coarser particles 130 are decelerated on the inside of the viewing space 90, so that their kinetic energy is reduced in a meaningful way.
  • the fines outlet is provided with the reference numeral 140 and the coarse material outlet with the reference numeral 150.

Landscapes

  • Combined Means For Separation Of Solids (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
  • Centrifugal Separators (AREA)

Claims (13)

  1. Séparateur avec une roue de séparation pour la séparation de produits pulvérulents, fibreux ou granuleux d'après la vitesse de chute sous l'influence de la forme, de la taille et de la densité des granulés, la roue de séparation étant constituée d'un corps sensiblement cylindrique (5) avec un noyau ou un tenon concentrique pour la réception d'un arbre d'entraînement, une pluralité d'ouvertures d'écoulement réparties sur la périphérie du cylindre, ainsi qu'une sortie de matières fines (140),
    caractérisé en ce que
    la roue de séparation est agencée dans la chambre de séparation (90) de manière non centrée, de telle façon que la section d'écoulement diminue depuis le côté de distribution des matières en direction de la sortie des matières fines (110).
  2. Séparateur selon la revendication 1,
    caractérisé en ce que le corps cylindrique de la roue de séparation est constitué d'un bloc monolithique, dans lequel l'épaisseur de paroi de l'enveloppe du cylindre est dans la plage de 0,1 à 0,4 fois et de préférence 0,125 à 0,3 fois le diamètre extérieur du cylindre, des barrettes (7) demeurent dans l'enveloppe de cylindre entre les ouvertures d'écoulement, et les ouvertures d'écoulement sont réalisées sous forme de fentes (6) s'étendant dans la direction longitudinale du cylindre et/ou d'une pluralité de perçages orientés radialement.
  3. Séparateur selon la revendication 2,
    caractérisé en ce que la largeur des fentes est plus petite que la largeur des barrettes restantes.
  4. Séparateur selon la revendication 2 ou 3,
    caractérisé en ce que les fentes, interrompues le cas échéant par une bague de soutien (8), sont agencées de manière à s'étendre sur la longueur du cylindre.
  5. Séparateur selon la revendication 2,
    caractérisé en ce que les axes longitudinaux des perçages (9) sont dirigés respectivement vers l'axe longitudinal du cylindre.
  6. Séparateur selon la revendication 5,
    caractérisé en ce que les axes des perçages sont agencés de manière à s'étendre en oblique sous un angle, de sorte que les prolongements imaginaires des axes longitudinaux des perçages se recoupent à l'extérieur de l'axe longitudinal du cylindre.
  7. Séparateur selon la revendication 6,
    caractérisé en ce que l'orientation en oblique des perçages s'étend dans le sens de rotation de la roue.
  8. Séparateur selon la revendication 6 ou 7,
    caractérisé en ce que, par référence à un système de coordonnées cartésien ayant son origine sur l'axe longitudinal du cylindre, l'angle de positionnement oblique est dans la plage entre 30° et 60°, de préférence entre 40° et 50°.
  9. Séparateur selon la revendication 2, 5, 6 ou 7,
    caractérisé en ce que les perçages respectifs dans des rangées de perçages voisines en direction périphérique sont agencés de façon décalée les uns par rapport aux autres.
  10. Séparateur selon l'une des revendications 2 à 9,
    caractérisé en ce que le corps cylindrique composte, à l'extrémité côté entraînement, un chanfrein périphérique (10).
  11. Séparateur selon l'une des revendications 2 à 10,
    caractérisé en ce que le corps cylindrique est en matière plastique, en particulier en matériau à base de polymère dur.
  12. Séparateur selon la revendication 11,
    caractérisé en ce que le corps cylindrique inclut un insert central métallique.
  13. Séparateur selon la revendication 1,
    caractérisé en ce que replacement d'aspiration est orienté de manière à s'étendre tangentiellement par rapport à la chambre de séparation.
EP05729093.4A 2004-11-05 2005-04-05 Separateur incorporant une roue de separation pour trier les produits pulverulents fibreux ou granuleux Active EP1807223B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410053530 DE102004053530B4 (de) 2004-11-05 2004-11-05 Sichterrad für eine Vorrichtung zur Trennung staubförmiger, fasriger oder körniger Güter
PCT/EP2005/003570 WO2006048050A1 (fr) 2004-11-05 2005-04-05 Roue de separateur pour un dispositif de separation de produits pulverulents, fibreux ou granuleux et separateur

Publications (2)

Publication Number Publication Date
EP1807223A1 EP1807223A1 (fr) 2007-07-18
EP1807223B1 true EP1807223B1 (fr) 2015-09-23

Family

ID=34963205

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05729093.4A Active EP1807223B1 (fr) 2004-11-05 2005-04-05 Separateur incorporant une roue de separation pour trier les produits pulverulents fibreux ou granuleux

Country Status (5)

Country Link
EP (1) EP1807223B1 (fr)
JP (1) JP4980231B2 (fr)
BR (1) BRPI0516707B1 (fr)
DE (1) DE102004053530B4 (fr)
WO (1) WO2006048050A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109395623A (zh) * 2018-10-17 2019-03-01 山东耀华特耐科技有限公司 一种耐火材料生产用无尘搅拌装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3782739A1 (fr) 2019-08-22 2021-02-24 Basf Se Composant à utiliser en tant que corps rotatif
DE102021128897A1 (de) 2021-05-05 2022-11-10 Aufbereitungstechnologie Noll Gmbh Anordnung zum Trockenvermahlen und Aufbereiten von unterschiedlichsten Materialien im Feinstkornbereich

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD290318A7 (de) * 1988-12-05 1991-05-29 Adw,Forschungsinstitut Fuer Aufbereitung,De Sichtrad
DE4140656C1 (fr) * 1991-12-10 1992-09-10 Alpine Ag, 8900 Augsburg, De
NO176507C (no) * 1992-12-01 1995-04-19 Sinvent Sintef Gruppen Rotor for klassifiserings-apparat
DE4419522B4 (de) * 1994-06-03 2006-06-29 Hosokawa Alpine Ag Sichtrad für Schleuderrad-Windsichter
DE29506015U1 (de) * 1995-04-07 1995-06-14 Hosokawa Alpine Ag Sichtrad für Schleuderrad-Windsichter
AT404234B (de) * 1996-07-08 1998-09-25 Pmt Gesteinsvermahlungstechnik Sichtrad für einen windsichter
DE10045160C2 (de) * 2000-08-14 2002-07-18 Ulf Noll Gmbh Multifunktionale Vorrichtung zum Mahlen, Sichten, Mischen und/oder Desagglomerieren
JP2002126650A (ja) * 2000-10-30 2002-05-08 Toshiba Tungaloy Co Ltd 分級ロータ
DE10151325B4 (de) * 2001-10-17 2006-07-27 Wester Tonbergbau Kg Windsichter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109395623A (zh) * 2018-10-17 2019-03-01 山东耀华特耐科技有限公司 一种耐火材料生产用无尘搅拌装置

Also Published As

Publication number Publication date
WO2006048050A1 (fr) 2006-05-11
BRPI0516707A (pt) 2008-09-23
EP1807223A1 (fr) 2007-07-18
BRPI0516707B1 (pt) 2018-11-13
DE102004053530A1 (de) 2006-05-24
JP2008518763A (ja) 2008-06-05
JP4980231B2 (ja) 2012-07-18
DE102004053530B4 (de) 2008-04-30

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