WO2008086026A1 - Séparateur à air pour matériaux broyés - Google Patents

Séparateur à air pour matériaux broyés Download PDF

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Publication number
WO2008086026A1
WO2008086026A1 PCT/US2008/000356 US2008000356W WO2008086026A1 WO 2008086026 A1 WO2008086026 A1 WO 2008086026A1 US 2008000356 W US2008000356 W US 2008000356W WO 2008086026 A1 WO2008086026 A1 WO 2008086026A1
Authority
WO
WIPO (PCT)
Prior art keywords
concentric
vessel
rotor
sidewall
upper portion
Prior art date
Application number
PCT/US2008/000356
Other languages
English (en)
Inventor
Eberhard W Neumann
Original Assignee
Koppern Equiptment, Inc.
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=39609015&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2008086026(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Koppern Equiptment, Inc. filed Critical Koppern Equiptment, Inc.
Priority to DK08705553.9T priority Critical patent/DK2125229T4/da
Priority to EP08705553.9A priority patent/EP2125229B2/fr
Publication of WO2008086026A1 publication Critical patent/WO2008086026A1/fr
Priority to US12/283,363 priority patent/US7854406B2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • 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
    • B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
    • B07B4/02—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall
    • 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
    • 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
    • B07B7/086—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force generated by the winding course of the gas stream
    • 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
    • B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
    • B07B9/02—Combinations of similar or different apparatus for separating solids from solids using gas currents

Definitions

  • the present invention relates to air separators for use in conjunction with comminution equipment, such as high pressure roll presses and ball mills.
  • High pressure roll presses have been used in cement processing with ball mills to increase throughput capacity and decrease the total energy expenditure in cement processing. These roll presses typically are the first stage in clinker grinding processing, and processing of other materials, with product from the press being directed to a ball mill or other machinery for further processing.
  • U.S. Patent No. 6,631,808 discloses an air classifier with enhanced air flow which maybe used for the simultaneous recovery of two or more distinct grades of foundry quality sand from a single sand stream.
  • the air classifier draws incoming air into the classification chamber through a honeycomb followed by a screen section having two or more screens, a vibrating screen feeder for spreading the incoming particle stream before entrainment in the air flow within the classifier can also be included.
  • U.S. Patent No. 5,158,182 discloses a rotary separator for separating different fractions of particulate material. Material and air pass inwardly through a cylindrical outer housing and three rotary cages. Channels below the rotors collect the separate fractions of separated material.
  • Blasczyk et al. U.S. Patent No. 4,792,393 discloses an air separator in which the spiral for delivery of the air for sifting is divided into a plurality of channels.
  • the channels lie one above another and the quantity of air delivered to the individual channels can be adjusted.
  • the degree of separation can be optimized by adjustably controlling air flow to each of the plurality of chambers.
  • the present invention provides various embodiments of a cyclonic air separator for the use in conjunction with the compressive comminution of granular material, including cement clinker.
  • the invention provides an air separator having a plurality of concentric vessels.
  • a spiral inlet housing, thimble, guide vanes, and rotor are provided atop the vessels to provide vortical wind currents within the vessels, and segregates feed material into the various vessels based on particle size.
  • the invention further provides that separated feed material is withdrawn from one of a plurality of vessel exit ports, or discharge outlets, for use as a final product.
  • the invention further provides that comminuted material can be introduced into the air separator at a plurality of entrance ports, based on the size of the particles, and the comminution processes already undergone.
  • FIG. 1 is a vertical cross-sectional view of the invented air separator.
  • FIG. 2 is an isometric view of the rotor for use in the air separator of FIG. 1.
  • FIG. 3 is a horizontal cross-sectional view of the rotor of FIG. 2.
  • air separator 10 includes a rotor 12 centrally positioned inside a corresponding rotor housing 14 about a vertical axis.
  • a rotary shaft 16 extends through the rotor housing 14 and is attached to the rotor 12 along a common concentric vertical axis.
  • the rotor 12 is supported within the rotor housing 14, so that it rotates freely within the housing 14 around the vertical, shaft- defined axis.
  • the rotor 12 itself is a drum or fan designed to let air and small particles pass vortically inward to the interior of the drum.
  • the rotor 12 is typically comprised of vertically extending rotor vanes 18 supported by at least an annular upper vane support 20, and preferably also by a lower annular vane support 22.
  • the rotor vanes 18 are mounted between the upper supports 20 and lower supports 22 and are fixed into position.
  • the rotor vanes 18 direct air and comminuted material into the interior of the rotor drum 12.
  • the rotational velocity of the rotor 12 can be altered to control the size of the particles that are allowed to pass into the rotor 12.
  • the rotor housing 14 defines a substantially hollow cylindrical cavity wherein pre-separated material can be acted on by vortical forces created by the rotor and the rotor vanes 18.
  • a secondary material feed 24 is located above the rotor 12, preferably concentric with the rotary shaft 16, and extending through the surface of the rotor housing 14.
  • Material from the secondary material feed 24 is fed directly to the rotor 12, preferably from a ball mill or other type mill capable of fine-grinding the comminuted material.
  • Material from the secondary material feed 24 is of a sufficiently small size and dimension that it will not harm the rotor 12 or the rotor vanes 18 when fed into the rotor housing 14. It is preferable that material entering the secondary material feed 24 is of a size and dimension that would normally be carried by the vortical forces in the rotor housing 14. That is, material from the secondary feed 24 is preferably small enough to be carried by the wind currents inside the rotor housing 14.
  • the product duct 26 is comprised of two regions, the upper cylindrical portion 30 located proximate to the rotor 12, and the lower frusto-conical portion 32, located distal from the rotor 12. This profile allows for the maintenance of sufficient velocities within the product duct 26.
  • the product exit port 28 is provided with a slight vacuum, such that air within the air separator 10 is drawn out through the product exit port 28. This ensures the prompt removal of finely comminuted material from the air separator 10.
  • the fine rejects vessel 36 is positioned generally concentrically around the product vessel or duct 26, with the product discharge outlet or exit port 28 extending therethrough. Similar to the product vessel 26, the fine rejects vessel 36 is comprised of an upper cylindrical portion 38, and a lower frusto-conical portion 40. The upper edge of the upper portion 38 is generally coplanar with the intersection of the product vessel 26 and the rotor 12. The plurality of guide vanes 34 are connected to and extend from the top of the upper portion 38 and are also connected to the rotor housing 14.
  • Material collected into the fine rejects vessel 36 is directed out of the air separator 10 through discharge outlet or exit 42. Material from the exit 42 can then be redirected to a ball mill grinder for further processing, and eventual reintroduction to the air separator 10 through the secondary material feed 24.
  • a primary material feed 56 Integrally and tangentially attached to the coarse rejects vessel is a primary material feed 56.
  • the primary material feed 56 functions both as an air inlet and for introduction of coarsely comminuted feed material.
  • Feed material entering the air separator 10 at the primary material feed 56 is typically material that has been passed through a first stage comminution device, such as a high pressure roll press.
  • the feed 56 is a spiral inlet, preferably having a 180° twist.
  • Air entering the separator 10 at the primary material feed 56 creates a flow that can carry fine particles upward into the rotor housing 14 and rotor 12 for segregation between the product vessel 26 and fine rejects vessel 36.
  • Material from the primary material feed 56 that is too heavy for transport into the rotor housing 14 is separated out of the air separator 10 into the coarse rejects vessel 44, and is discharged at the coarse rejects discharge outlet or exit 50, for further comminution.

Abstract

La présente invention concerne un séparateur d'air comprenant un rotor positionné au-dessus de trois cuves concentriques. Le rotor et une pluralité de ports d'amenée séparent un matériau broyé dans les trois cuves. Un port d'évacuation depuis les trois cuves guide le matériau broyé séparé en vue de traitements de broyage supplémentaires, comme un broyeur à billes ou une presse à rouleaux, ou en vue d'une utilisation comme produit fini.
PCT/US2008/000356 2007-01-10 2008-01-10 Séparateur à air pour matériaux broyés WO2008086026A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DK08705553.9T DK2125229T4 (da) 2007-01-10 2008-01-10 Luftseparator til formindskede materialer
EP08705553.9A EP2125229B2 (fr) 2007-01-10 2008-01-10 Séparateur à air pour matériaux broyés
US12/283,363 US7854406B2 (en) 2008-01-10 2008-09-09 Air separator for comminuted materials

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US87961807P 2007-01-10 2007-01-10
US60/879,618 2007-01-10

Publications (1)

Publication Number Publication Date
WO2008086026A1 true WO2008086026A1 (fr) 2008-07-17

Family

ID=39609015

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/000356 WO2008086026A1 (fr) 2007-01-10 2008-01-10 Séparateur à air pour matériaux broyés

Country Status (3)

Country Link
EP (1) EP2125229B2 (fr)
DK (1) DK2125229T4 (fr)
WO (1) WO2008086026A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017148882A1 (fr) * 2016-03-02 2017-09-08 Thyssenkrupp Industrial Solutions Ag Séparateur pour séparer un flux de matériaux
WO2018162173A1 (fr) * 2017-03-08 2018-09-13 Thyssenkrupp Industrial Solutions Ag Dispositif de séparation et procédé destiné à séparer un flux de matériaux

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1735479A (en) * 1928-02-04 1929-11-12 Sturtevant Mill Co Air separator
US3490702A (en) * 1966-10-24 1970-01-20 D Ore Mills Inc Method of accelerating production of portland cement and similar material
US5158182A (en) * 1990-06-08 1992-10-27 Kloeckner-Humboldt-Deutz Ag Sifter
US5354002A (en) * 1990-11-26 1994-10-11 F. L. Smith & Co. A/S Double separator for sorting particulate material

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE908096C (de) * 1951-04-25 1954-04-01 Babcock & Wilcox Dampfkessel W Windsichter
DE4005323A1 (de) † 1990-02-20 1991-08-22 Krupp Polysius Ag Verfahren und mahlanlage zur zweistufigen zerkleinerung von sproedem mahlgut
DE4040890C2 (de) * 1990-12-20 1995-03-23 Krupp Foerdertechnik Gmbh Windsichter
DE4224704C2 (de) † 1992-07-25 2002-01-31 Kloeckner Humboldt Wedag Verfahren und Anlage zur Zerkleinerung von Mahlgut
DE102004027128A1 (de) † 2004-06-03 2005-12-22 Polysius Ag Vorrichtung zum Sichten von körnigem Gut in wenigstens drei Kornfraktionen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1735479A (en) * 1928-02-04 1929-11-12 Sturtevant Mill Co Air separator
US3490702A (en) * 1966-10-24 1970-01-20 D Ore Mills Inc Method of accelerating production of portland cement and similar material
US5158182A (en) * 1990-06-08 1992-10-27 Kloeckner-Humboldt-Deutz Ag Sifter
US5354002A (en) * 1990-11-26 1994-10-11 F. L. Smith & Co. A/S Double separator for sorting particulate material

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2125229A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017148882A1 (fr) * 2016-03-02 2017-09-08 Thyssenkrupp Industrial Solutions Ag Séparateur pour séparer un flux de matériaux
WO2018162173A1 (fr) * 2017-03-08 2018-09-13 Thyssenkrupp Industrial Solutions Ag Dispositif de séparation et procédé destiné à séparer un flux de matériaux

Also Published As

Publication number Publication date
EP2125229B1 (fr) 2014-02-26
EP2125229B2 (fr) 2021-01-13
DK2125229T4 (da) 2021-02-22
EP2125229A1 (fr) 2009-12-02
DK2125229T3 (da) 2014-05-19
EP2125229A4 (fr) 2013-03-27

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