EP0221246A2 - Séparateur pneumatique - Google Patents

Séparateur pneumatique Download PDF

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Publication number
EP0221246A2
EP0221246A2 EP86110245A EP86110245A EP0221246A2 EP 0221246 A2 EP0221246 A2 EP 0221246A2 EP 86110245 A EP86110245 A EP 86110245A EP 86110245 A EP86110245 A EP 86110245A EP 0221246 A2 EP0221246 A2 EP 0221246A2
Authority
EP
European Patent Office
Prior art keywords
guide elements
rotor
guide
openings
sifter according
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
EP86110245A
Other languages
German (de)
English (en)
Other versions
EP0221246A3 (en
EP0221246B1 (fr
Inventor
Ludger Lohnherr
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.)
ThyssenKrupp Industrial Solutions AG
Original Assignee
Krupp Polysius 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 Krupp Polysius AG filed Critical Krupp Polysius AG
Publication of EP0221246A2 publication Critical patent/EP0221246A2/fr
Publication of EP0221246A3 publication Critical patent/EP0221246A3/de
Application granted granted Critical
Publication of EP0221246B1 publication Critical patent/EP0221246B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
    • B07B11/06—Feeding or discharging arrangements
    • 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
    • B07B4/025—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall the material being slingered or fled out horizontally before falling, e.g. by dispersing elements

Definitions

  • the invention relates to a classifier according to the preamble of claim 1.
  • a classifier of the type required in the preamble of claim 1 is known for example from EP-A-23 320.
  • the upper end face of the rotor is provided with an annular spreading plate, which encloses a central opening serving to extract the air stream laden with fine material.
  • the visible material is fed to this spreading plate through a number of good pipes, which are arranged on the top of the classifier housing around the central connecting piece which serves to discharge the visual air. From the edge of the spreader plate, the material is deflected radially outward in the downward direction so that it falls into the space between the stationary diffuser and the rotor.
  • a major disadvantage of this known classifier is the poor distribution of the crop by the spreading disc. If the material to be sighted is not scattered completely uniformly over the entire circumference, this affects the selectivity of the classifier.
  • the invention is therefore based on the object of forming a classifier of the type required in the preamble of claim 1 so that at a simple construction, an absolutely even distribution of the visible material is achieved over the entire circumference of the visible space.
  • the inventive design of the spreading plate achieves a completely uniform spreading of the material to be sifted into the viewing area.
  • the material flowing outwards on the spreader plate is fed through the guide elements in a completely jam-free manner and deflected via the guide elements in such a way that it is directed downward into the viewing area without any disruptive material agglomeration through the openings.
  • the arrangement of the guide elements and guide elements according to the invention ensures that the material on the spreading plate cannot build up and remain under the action of the centrifugal force, which would result in imbalances in the operation of the spreading plate and irregularities in the dropping off of the material.
  • the classifier illustrated in FIG. 1 contains a rotor 1 with a vertical axis 2, which is driven via a shaft 3 by a motor not shown in the drawing.
  • the shaft 3 is supported at its lower end in a bearing 4 which is held in the classifier housing 6 via radial struts 5.
  • the rotor 1 has on its circumference spaced-apart blades 7 which are expediently adjustable.
  • annular scattering plate 8 On the upper side of the rotor 1 there is an annular scattering plate 8 which can be rotated with the rotor, the configuration of which is explained in detail with reference to FIG.
  • Two diametrically arranged material insertion nozzles 9, 10 serve to feed the material to be sifted onto the spreading plate 8.
  • the rotor 1 is surrounded at a distance (distance dimension x) by a fixed guide device 11, which contains adjustable guide vanes 12 and serves to supply a stream of classifying air (arrows 13) which flows from the lower part of the classifier housing 6, the guide device 11 and the rotor 1 flows through and flows through a channel 14 arranged centrally above the rotor 1.
  • the guide vanes 12 of the guide apparatus 11 are mounted eccentrically (axis 15), so that the distance x between the guide vanes 12 and the circumference of the rotor 1 remains constant when the guide vane position changes.
  • a funnel 16 for discharging the coarse material (arrow 17) is provided below the rotor 1 and the guide apparatus 11.
  • the fine material (arrow 18) leaves the classifier together with the classifying air through channel 14 and is separated, for example, in a cyclone arranged outside the classifier.
  • the spreading plate 8 is provided in its peripheral region with a number of openings 19, which are arranged in a uniform circumferential division and in the embodiment according to FIG. 2 have the shape of elongated holes, the axis 20 of which includes an angle ⁇ 1 with the radial direction.
  • the openings 19 are delimited by guide elements 21 which are inclined in the direction of rotation of the spreading plate (arrow 22) by the angle ⁇ 1 already mentioned with respect to the radial direction.
  • a guide element 23 is arranged in each case, which is inclined in the opposite direction to the direction of rotation of the spreading plate 8 with respect to the radial direction by an angle ⁇ 2.
  • the guide elements 21 and the guide elements 23 are thus arranged in a zigzag shape, the openings 19 extending into the gusset of the adjacent guide and guide elements 21, 23.
  • the guide elements 21 are inclined with respect to the vertical position and cover the openings 19 at a distance.
  • the material (arrow 24) supplied to the openings 19 along the guide elements 23 is guided by the guide elements 21 deflected downwards (arrow 25) and falls through the openings 19 into the viewing space.
  • the angle ⁇ 1 which the guide elements 21 form with the radial direction, is advantageously between 34 and 54 °, preferably about 45 °.
  • the angle ⁇ 2 which the guide elements 23 form with the radial direction, is expediently between 25 and 45 °, preferably about 36 °.
  • the openings 19 are arranged on a diameter which corresponds approximately to the average diameter of the fixed diffuser 11. In this way, in contrast to the previously known designs, the material is not sprinkled into the space between the guide device 11 and the rotor 1, but rather into the guide device itself. As a result, coarse particles of good are separated off on the walls of the guide vanes 12 and fall directly down into the funnel 16 without stressing the part of the viewing space located between the guide device 11 and the rotor 1.
  • the openings 19 are designed trapezoidal, the trapezoidal base being delimited by the guide elements 21.

Landscapes

  • Combined Means For Separation Of Solids (AREA)
EP86110245A 1985-11-07 1986-07-25 Séparateur pneumatique Expired - Lifetime EP0221246B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853539512 DE3539512A1 (de) 1985-11-07 1985-11-07 Sichter
DE3539512 1985-11-07

Publications (3)

Publication Number Publication Date
EP0221246A2 true EP0221246A2 (fr) 1987-05-13
EP0221246A3 EP0221246A3 (en) 1988-10-05
EP0221246B1 EP0221246B1 (fr) 1990-05-30

Family

ID=6285396

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86110245A Expired - Lifetime EP0221246B1 (fr) 1985-11-07 1986-07-25 Séparateur pneumatique

Country Status (6)

Country Link
US (1) US4693811A (fr)
EP (1) EP0221246B1 (fr)
BR (1) BR8604755A (fr)
DE (2) DE3539512A1 (fr)
ES (1) ES2003470A6 (fr)
ZA (1) ZA865718B (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0374491A2 (fr) * 1988-12-22 1990-06-27 Krupp Polysius Ag Séparateur pneumatique
EP0377826A2 (fr) * 1989-01-12 1990-07-18 Krupp Polysius Ag Séparateur pneumatique
EP0534483A2 (fr) * 1991-09-27 1993-03-31 Engma Engineers Beheer Séparateur centrifuge à turbine
WO1996032204A1 (fr) * 1995-04-11 1996-10-17 Hosokawa Mikropul Gesellschaft Für Mahl- Und Staubtechnik Mbh Dispositif classificateur
EP2659988A1 (fr) 2012-05-02 2013-11-06 Alstom Technology Ltd Classificateur de laminoir réglable

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE68986T1 (de) * 1987-07-03 1991-11-15 Ciba Geigy Ag Spruehtrockner zur herstellung von pulvern, agglomeraten oder dergleichen.
DE3808022A1 (de) * 1988-03-10 1989-09-21 Krupp Polysius Ag Sichter
FR2658096B1 (fr) * 1990-02-13 1992-06-05 Fives Cail Babcock Selecteur a air a action centrifuge.
DE4112018A1 (de) * 1990-06-08 1991-12-12 Kloeckner Humboldt Deutz Ag Sichter
DE4025247A1 (de) * 1990-08-09 1992-02-13 Nied Roland Windsichter
AT401741B (de) * 1993-08-19 1996-11-25 Thaler Horst Dipl Ing Windsichter
FR2741286B1 (fr) * 1995-11-21 1998-01-23 Fcb Separateur a air a action centrifuge
US5927510A (en) * 1997-02-19 1999-07-27 Xerox Corporation Particle classification apparatus and processes thereof
DE102006044833B4 (de) * 2006-09-20 2010-01-21 Babcock Borsig Service Gmbh Zentrifugalsichter und Verfahren zum Sichten
WO2014117031A1 (fr) 2013-01-24 2014-07-31 Lp Amina Llc Dispositif de classification
GB2532172A (en) * 2013-09-09 2016-05-11 Coal Milling Projects (Pty) Ltd Static classifier

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0023320A1 (fr) * 1979-07-17 1981-02-04 Onoda Cement Company, Ltd. Séparateur sélectif d'air
EP0073567A2 (fr) * 1981-09-01 1983-03-09 F.L. Smidth & Co. A/S Procédé et dispositif pour trier des matières particulaires
DE3222878C1 (de) * 1982-06-18 1983-12-22 PKS-Engineering GmbH & Co KG, 4720 Beckum Verfahren zum Betreiben eines Windsichters und Windsichter zur Durchfuehrung des Verfahrens
EP0155457A2 (fr) * 1984-03-21 1985-09-25 Krupp Polysius Ag Séparateur pneumatique

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US942251A (en) * 1908-10-03 1909-12-07 Coal And Coke By Products Company Centrifugal dry coal-separator.
US2729330A (en) * 1951-04-18 1956-01-03 Houdry Process Corp Elutriation system
US3017854A (en) * 1959-03-20 1962-01-23 Edward D O'brien Centrifugal coating apparatus
CH482471A (de) * 1963-12-20 1969-12-15 Rumpf Hans Prof Ing Dr Verfahren und Vorrichtung zum Sichten von körnigem Gut im Querstrom für Trenngrenzen unterhalb 1 mm
JPS4533158Y1 (fr) * 1965-10-12 1970-12-17
SU780908A1 (ru) * 1978-12-04 1980-11-23 Государственный Всесоюзный Проектный И Научно-Исследовательский Институт "Гипронинеметаллоруд" Пневматический классификатор
IT1171172B (it) * 1983-06-03 1987-06-10 Umberto Manola Dispositivo particolarmente adatto per impianti adibiti alla separazione fisica dei componenti di farine ad uso alimentare o per altri usi

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0023320A1 (fr) * 1979-07-17 1981-02-04 Onoda Cement Company, Ltd. Séparateur sélectif d'air
EP0073567A2 (fr) * 1981-09-01 1983-03-09 F.L. Smidth & Co. A/S Procédé et dispositif pour trier des matières particulaires
DE3222878C1 (de) * 1982-06-18 1983-12-22 PKS-Engineering GmbH & Co KG, 4720 Beckum Verfahren zum Betreiben eines Windsichters und Windsichter zur Durchfuehrung des Verfahrens
EP0155457A2 (fr) * 1984-03-21 1985-09-25 Krupp Polysius Ag Séparateur pneumatique

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0374491A2 (fr) * 1988-12-22 1990-06-27 Krupp Polysius Ag Séparateur pneumatique
DE3843338A1 (de) * 1988-12-22 1990-06-28 Krupp Polysius Ag Sichter
EP0374491A3 (fr) * 1988-12-22 1991-12-11 Krupp Polysius Ag Séparateur pneumatique
EP0377826A2 (fr) * 1989-01-12 1990-07-18 Krupp Polysius Ag Séparateur pneumatique
DE3900779A1 (de) * 1989-01-12 1990-07-19 Krupp Polysius Ag Sichter
EP0377826A3 (fr) * 1989-01-12 1991-07-03 Krupp Polysius Ag Séparateur pneumatique
EP0534483A2 (fr) * 1991-09-27 1993-03-31 Engma Engineers Beheer Séparateur centrifuge à turbine
EP0534483A3 (en) * 1991-09-27 1994-10-26 Energietechnik Ag Gempa Haus Centrifugal separator with turbine
WO1996032204A1 (fr) * 1995-04-11 1996-10-17 Hosokawa Mikropul Gesellschaft Für Mahl- Und Staubtechnik Mbh Dispositif classificateur
EP2659988A1 (fr) 2012-05-02 2013-11-06 Alstom Technology Ltd Classificateur de laminoir réglable

Also Published As

Publication number Publication date
ZA865718B (en) 1987-03-25
DE3671606D1 (de) 1990-07-05
ES2003470A6 (es) 1988-11-01
EP0221246A3 (en) 1988-10-05
BR8604755A (pt) 1987-06-30
DE3539512A1 (de) 1987-05-14
EP0221246B1 (fr) 1990-05-30
US4693811A (en) 1987-09-15

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