EP1086753B1 - Windsichter - Google Patents
Windsichter Download PDFInfo
- Publication number
- EP1086753B1 EP1086753B1 EP00116372A EP00116372A EP1086753B1 EP 1086753 B1 EP1086753 B1 EP 1086753B1 EP 00116372 A EP00116372 A EP 00116372A EP 00116372 A EP00116372 A EP 00116372A EP 1086753 B1 EP1086753 B1 EP 1086753B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air
- cover plate
- classifying
- air classifier
- casing
- 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 - Lifetime
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
-
- 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
Definitions
- the invention relates to an air classifier according to the preamble of claim 1.
- EP-A-734 787 is an air classifier according to the preamble of claim 1.
- Schaufelradsichter Classifiers flows through the fines laden with fine air the bladed rotor, i. the classifying wheel, from the outside inside and leaves this through a central discharge opening in the corresponding front wall.
- the separation limit depends on the speed of the rotor and the volume flow of the enforced Gas off. The higher the speed and the lower the gas flow, the finer the separation cut.
- the reformulation means Pipe socket off the classifying wheel.
- This pipe socket is over a more or less long distance parallels with the Rotary axis of the rotor. It is also known the pipe socket partly into the classifying wheel. Independently of, whether these pipe socket rotatably connected to the preparerad are or are resting in them a lot of the peripheral speed destroyed due to friction. in principle behave with regard to pressure loss such air classifier cheaper, in which the air leaving the rotor in an expansion housing, preferably as a flat spiral housing is formed, flows out. The spiral housing allows a partial recovery of kinetic energy.
- the rotor-facing bottom of the volute casing includes These known air classifier on an inlet opening, the is arranged congruent with the discharge opening. Also in this embodiment, the stationary walls and lead Soil to increased friction and thus increased Pressure loss.
- the invention is based on the object, an air classifier to create the type mentioned, in which also At Feinstsichtitch the lowest possible pressure losses occur.
- a part of the wall of the expansion housing through the corresponding adjacent end wall i. the Cover disc of bombards, formed, so with the Classifying wheel rotates. Due to the fact that in the stationary wall of the Expansion housing provided a corresponding opening is, in which the rotating cover disc with the discharge opening is located, the cover disc acts as part of the Expansion housing, i. the whole upper cover disk is flush with the bottom of the expansion housing.
- the cover disc acts as part of the Expansion housing, i. the whole upper cover disk is flush with the bottom of the expansion housing.
- the pneumatic seal is advantageously so formed as specified in claim 2.
- the expansion housing is designed as specified in claim 4.
- This air classifier consists of a viewing room 7 in which the Classifying wheel 1 protrudes and by a motor, not shown is driven, the thyristor controlled continuously variable speed is.
- the upper end wall of the classifying wheel 1 is used as a cover plate. 5 formed with a central discharge opening 2. These Cover plate 5 is located in an opening of the upper wall 8 of the reformraumes 7. Between the rotating cover plate 5 and the wall 8, an annular gap remains free, the over a connecting piece 9 purge air is supplied.
- the wall is 8 double-walled design.
- the spiral housing with outlet channel. 4 is formed, which is substantially perpendicular to the axis of rotation the sortrades 1 is arranged.
- the Cover disc 5 are located in the expansion housing 3 fan blades 10, the gas flow additional kinetic Supplying energy.
Landscapes
- Combined Means For Separation Of Solids (AREA)
- Separation Of Gases By Adsorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Description
Claims (6)
- Windsichter mit einem entgegen der Fliehkraft radial von außen nach innen von der feingutbeladenen Sichtluft durchströmten, in einer Sichtkammer (7) rotierenden Sichtrad (1), aus dem die Sichtluft axial durch eine Austragsöffnung (2) in einer Deckscheibe (5) in ein Expansionsgehäuse (3) abströmt, wobei in den Ringspalt (6) zwischen der Wand (8) des Expansionsgehäuses (3) und der Deckscheibe (5) Spülluft eingeblasen wird, dadurch gekennzeichnet, daß die rotierende Deckscheibe (5) mit ihrer Austragsöffnung (2) in einer Öffnung (Spalt 6) der ortsfesten Wand (8) des Expansionsgehäuses (3) liegt.
- Windsichter nach Anspruch 1, dadurch gekennzeichnet, daß die Wand (8) des Expansionsgehäuses (3) doppelwandig zum Einblasen der Spülluft ausgebildet ist.
- Windsichter nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Austrittskanal (4) des Expansionsgehäuses (3) im wesentlichen senkrecht der Drehachse des Sichtrades (1) verläuft.
- Windsichter nach Anspruch 3, dadurch gekennzeichnet, daß das Expansionsgehäuse (3) als Spiralgehäuse ausgebildet ist.
- Windsichter nach Anspruch 4, dadurch gekennzeichnet, daß der größte Radius des Spiralgehäuses ungefähr das zweifache des Radius der Deckscheibe (5) des Sichtrades (1) beträgt.
- Windsichter nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, daß auf der Deckscheibe (5) des Sichtrades (1) in dem Expansionsgehäuse (3) Ventilatorflügel (10) vorgesehen sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19947862A DE19947862A1 (de) | 1999-09-23 | 1999-09-23 | Windsichter |
DE19947862 | 1999-09-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1086753A1 EP1086753A1 (de) | 2001-03-28 |
EP1086753B1 true EP1086753B1 (de) | 2004-11-10 |
Family
ID=7924507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00116372A Expired - Lifetime EP1086753B1 (de) | 1999-09-23 | 2000-07-28 | Windsichter |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1086753B1 (de) |
AT (1) | ATE281894T1 (de) |
DE (2) | DE19947862A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008038776B4 (de) * | 2008-08-12 | 2016-07-07 | Loesche Gmbh | Verfahren zur Sichtung eines Mahlgut-Fluid-Gemisches und Mühlensichter |
FR2936171B1 (fr) * | 2008-09-19 | 2011-07-15 | Broyeurs Poittemill Ingenierie | Selecteur de particules a flux d'air avec etancheite renforcee |
CN109201483A (zh) * | 2017-06-30 | 2019-01-15 | 四川丰能粉体设备有限公司 | 一种新型气流粉碎分级机 |
DE102017120033B4 (de) | 2017-08-31 | 2024-02-08 | Siempelkamp Maschinen- Und Anlagenbau Gmbh | Vorrichtung zur Abtrennung und/oder Gewinnung von Silikatpartikeln aus pflanzlichem Material |
CN116020743A (zh) * | 2022-12-22 | 2023-04-28 | 中建材创新科技研究院有限公司 | 一种风选器 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2269412A (en) * | 1940-07-18 | 1942-01-06 | Sturtevant Mill Co | Air separator |
DE19505466A1 (de) * | 1995-02-17 | 1996-08-22 | Krupp Polysius Ag | Windsichter |
DE19511314C2 (de) * | 1995-03-28 | 1997-02-06 | Omya Gmbh | Zentrifugalkraftsichter |
NO300257B1 (no) * | 1995-04-07 | 1997-05-05 | Sinvent As | Apparat for sortering av partikkelformig materiale |
-
1999
- 1999-09-23 DE DE19947862A patent/DE19947862A1/de not_active Withdrawn
-
2000
- 2000-07-28 DE DE50008577T patent/DE50008577D1/de not_active Expired - Lifetime
- 2000-07-28 EP EP00116372A patent/EP1086753B1/de not_active Expired - Lifetime
- 2000-07-28 AT AT00116372T patent/ATE281894T1/de active
Also Published As
Publication number | Publication date |
---|---|
ATE281894T1 (de) | 2004-11-15 |
DE19947862A1 (de) | 2001-03-29 |
DE50008577D1 (de) | 2004-12-16 |
EP1086753A1 (de) | 2001-03-28 |
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