EP0612271A1 - Windsichter. - Google Patents
Windsichter.Info
- Publication number
- EP0612271A1 EP0612271A1 EP92923358A EP92923358A EP0612271A1 EP 0612271 A1 EP0612271 A1 EP 0612271A1 EP 92923358 A EP92923358 A EP 92923358A EP 92923358 A EP92923358 A EP 92923358A EP 0612271 A1 EP0612271 A1 EP 0612271A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vane ring
- guide vane
- wheel
- air classifier
- guide
- 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
Links
- 238000000926 separation method Methods 0.000 claims abstract description 13
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 51
- 239000002245 particle Substances 0.000 description 8
- 239000007921 spray Substances 0.000 description 5
- 239000002994 raw material Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 241001233037 catfish Species 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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 present invention relates to an air classifier which has as main components a spiral housing with inlets for raw material and classifying gas, a classifying wheel, a guide vane ring and outlets for coarse and fine material and the classifying air.
- the object of the invention is to provide a novel design of such a sealer in such a way that an operating method is possible which differs fundamentally from the previous operating methods and leads to particularly good visual results without additional construction work.
- the remaining mixture of classifying air and fine material is fed to the fine material discharge in a flow forming a vortex sink.
- the invention is based on the consideration that with such air classifiers there is a risk that so-called spray grain from the already separated coarse material, which is still located in front of the peeling edge, will get into the fine material that has already been freed from the coarse material, so that the fine material still has one may contain a small, but not wanted, proportion of coarse material in the form of the spray grain mentioned.
- a coarse separating classifying wheel is arranged in the fine material outlet, which separates the coarse material fraction from the fine material again by using the centrifugal force effect.
- the invention takes a different approach than the separation between fine material and coarse material does not take place in a viewing area, in the outlet of which a sorting wheel intended for this purpose is arranged, as it were, for subsequent cleaning of the fine material which has already been freed from coarse material, but a classifying wheel for the actual separation of the coarse material portion of the fine material portion is provided.
- the stationary blade ring will be designed so that the visible air permeated by the fine and coarse material in a well-dispersed form is introduced into the circumference of the classifying wheel in a manner that is as uniform as possible.
- Classifying wheels designed for this task are known per se (e.g. EP 89121065.0). However, it is not known to connect such guide wheels upstream of a guide vane ring in the manner described above.
- peeling edge there is a significant difference between the closest prior art and the invention in that, in the prior art, the coarse material is peeled off with the peeling edge, in which In contrast, the invention only derives a leading edge from coarse material particles which, despite the appropriately designed guide vane ring, do not get into the classifying wheel contrary to the intended purpose, that is to say that they proportionally correspond to the proportion of spray material in the prior art.
- Fig. 2 a horizontal central longitudinal section through the air classifier according to Fig. 1 along the line A-A in Fig. 1 and
- Fig. 3 a section corresponding to Fig. 2, but the sight wheel is omitted to show the leading edge, which lies in the sectional view in Fig. 2 behind the sight wheel.
- the viewing chamber 9 is enclosed by a stationary guide vane ring 11.
- the guide vanes 12 of the guide vane ring 11 can be adjusted individually about their respective longitudinal axis 13.
- the guide vane ring 11 forms part of a circle lying concentrically to the classifier axis 6.
- a rotating view wheel 14 known per se, which has blades 15, is again arranged concentrically to the classifier axis 6.
- the annular space between the outer circle of the sight wheel 14 and the inner circle of the guide vane ring 11 is considerably narrower than in the prior art, because in contrast to the prior art, no actual sighting should take place in it.
- the width of the annular space between the sight wheel and the guide vane ring is selected only as is necessary in view of an orderly transfer of the raw material from the guide vane ring into the sight wheel.
- the visible material inlet 3 opens tangentially into the viewing chamber 9 in the region of the annular space between the guide vane ring 11 and the classifying wheel 14.
- the visible air inlet 5 opens tangentially into the
- Annular space 17 between the vane ring 11 and the spiral housing 1 sight material inlet 3 and sight air inlet 5 are tubes arranged parallel to one another.
- the grit discharge 8 has a guide plate 18, which is inclined by at least 45 °, is fastened to a wall section 19 of the classifier housing, together with a wall section 20 attached to the tube 2 of the sight material inlet 3 and the guide vane ring 11, the inner viewing chamber 9 of separates the outer annular space 17, with its one edge towards the end of the flow path in the sighting material housing towards the sighting material inlet 3 towards the circle of the guide vane ring 11, and finally with its other edge as far as possible to the sighting wheel 14 as it is with regard to an unbe ⁇ hindered rotational movement of the classifying wheel 14 is permissible.
- the visible air flows through the flow channels between the guide vanes 12 of the guide vane ring 11 from the outside inwards.
- the guide vanes 12 are rotatably supported in the housing 1 in such a way that both the inflow angle of the sighting gas and the gap width through which the vanes 12 flow can be varied.
- the material to be sighted is placed on the inside of the guide vanes 12 of the guide vane ring 11 and through the sight gas flows intensively at the gaps. Due to the prevailing flow conditions caused by the blade position and blade shape, a vortex formation occurs in the flow channels between the blades of the guide vane ring 11, which prevents visible material from attaching to the guide blades, and finally a spiral flow occurs in the viewing chamber 9.
- the separating limit in the annular space is set to be coarser than on the classifying wheel 14.
- the outer guide vane ring 11 thus serves a relatively low level of caution and - above all - intensive Dispersion and deagglomeration of the visible material, which is to be seen as an essential advantage that is achieved with the invention.
- the actual screening takes place with a high degree of efficiency in the classifying wheel, the particles derived from the discharge device 8 are, as it were, scattered material made of particles of extremely high mass or particles which are subject to special influences; in fact, the vast majority of the particles are caused, to get into the classifying wheel, which serves the actual sighting.
- the fine material finally leaves the classifier via the product or fine material outlet 7 of the classifying wheel 14; Jreugut, which revolves near the guide vane ring 11, is preferably peeled off via a guide plate 18 of the material discharge 8 which is inclined by at least 45 ° and can thus be removed from the viewing area.
- the guide vanes 12 of the outer, static guide vane ring 11 are set so that the flow angle of the guide vanes 12 and the cross sections of the guide vane channels between the guide vanes according to the invention result in a spiral wind sighting in the annular viewing space 9 between the guide vane ring 11 and the vane visual wheel 14 a coarser separating grain provides than it corresponds to the conditions prevailing on the outer edge of the vane wheel.
- the sectional view according to FIG. 2 shows parts of the classifier according to FIG. 1 with the reference number used in FIG. 1 without 8th.
- the cut according to Fig. 3 shows in a corresponding catfish the parts of FIG. 1 with the reference numerals of FIG. 1, without the sight wheel 14 being drawn, but the angle of attack 0. the grit cutting edge 18 can be seen, which should be at least 45 according to the invention.
- the diameter ratio of the guide vane ring 11 to the sight wheel should preferably be 1: 0.8.
- the angle of attack of the guide vanes 12 of the guide vane ring should preferably be 25 °.
- the classifier is arranged vertically (with horizontal classifier axis 6), but its lying arrangement with vertical classifier axis 6 is possible.
- the grit outlet 18 has the guide plate 8 and an opening in the rear wall of the classifier housing, with respect to the illustration in FIG. 1, to which the guide plate 8 leads.
- this annular space can have a constant width, although it can also become narrower in the direction of flow.
Landscapes
- Combined Means For Separation Of Solids (AREA)
- Cyclones (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4137633A DE4137633A1 (de) | 1991-11-15 | 1991-11-15 | Windsichter und verfahren zum betrieb eines windsichters |
DE4137633 | 1991-11-15 | ||
PCT/EP1992/002628 WO1993009883A1 (de) | 1991-11-15 | 1992-11-15 | Windsichter |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0612271A1 true EP0612271A1 (de) | 1994-08-31 |
EP0612271B1 EP0612271B1 (de) | 1996-06-12 |
Family
ID=6444903
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92923358A Expired - Lifetime EP0612271B1 (de) | 1991-11-15 | 1992-11-15 | Windsichter |
Country Status (6)
Country | Link |
---|---|
US (1) | US5496394A (de) |
EP (1) | EP0612271B1 (de) |
JP (1) | JP2957700B2 (de) |
DE (2) | DE4137633A1 (de) |
ES (1) | ES2089576T3 (de) |
WO (1) | WO1993009883A1 (de) |
Families Citing this family (56)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4329706A1 (de) * | 1993-09-02 | 1995-03-09 | Nied Roland | Windsichter |
DE4329662C2 (de) * | 1993-09-02 | 2000-05-18 | Krupp Polysius Ag | Leitschaufelkranz und Sichter |
DE4431534B4 (de) * | 1994-02-10 | 2006-12-28 | Nied, Roland, Dr. Ing. | Maschine zur Einwirkung auf zerkleinerbares und klassierbares Rohgut, sowie Verfahren zum Betrieb der Maschine |
DE4418195B4 (de) * | 1994-05-25 | 2007-11-29 | Nied, Roland, Dr. Ing. | Sichter mit tangentialem Grobgutaustrag |
DE19606672A1 (de) * | 1996-02-22 | 1997-08-28 | Krupp Polysius Ag | Sichter |
WO1998029179A1 (en) | 1997-01-02 | 1998-07-09 | Thermo Black Clawson Inc. | Improved mist eliminator |
US6896720B1 (en) * | 1999-02-18 | 2005-05-24 | Adrian Christopher Arnold | Cleaning apparatus |
BR0012405A (pt) | 1999-07-12 | 2002-03-12 | Thermo Black Clawson Inc | Dispositivo de separação ciclÈnico para separação de lìquido de fluxo contendo lìquido e gás, combinação, lavador de polpa, aparelho de separação ciclÈnico, método para separar lìquidos que existem em um fluxo de gás em um aparelho, e, método para separar partìculas de tinta de uma lama |
US7065826B1 (en) | 2003-01-21 | 2006-06-27 | Euro Pro Operating, Llc | Cyclonic bagless vacuum cleaner with slotted baffle |
US6890375B2 (en) * | 2003-02-20 | 2005-05-10 | Keith L. Huber | Cyclonic air filter with exit baffle |
US8075668B2 (en) | 2005-03-29 | 2011-12-13 | Dresser-Rand Company | Drainage system for compressor separators |
JP4852364B2 (ja) * | 2006-07-12 | 2012-01-11 | 財団法人 国際石油交流センター | 気固分離器 |
JP4854408B2 (ja) * | 2006-07-12 | 2012-01-18 | 財団法人 国際石油交流センター | 気固分離器の設計方法 |
JP4852365B2 (ja) * | 2006-07-12 | 2012-01-11 | 財団法人 国際石油交流センター | 気固分離器 |
US8434998B2 (en) * | 2006-09-19 | 2013-05-07 | Dresser-Rand Company | Rotary separator drum seal |
US7842113B2 (en) * | 2006-09-20 | 2010-11-30 | Babcock & Wilcox Power Generation Group, Inc. | Extended water level range steam/water conical cyclone separator |
EP2063975B1 (de) | 2006-09-21 | 2011-07-06 | Dresser-Rand Company | Separatortrommel und antriebsanordnung für einen verdichter |
EP2066949B1 (de) | 2006-09-25 | 2013-08-28 | Dresser-Rand Company | Axial beweglicher spulenanschluss |
BRPI0717088B1 (pt) | 2006-09-25 | 2019-10-29 | Dresser Rand Co | sistema de proteção de acoplamento |
US8733726B2 (en) | 2006-09-25 | 2014-05-27 | Dresser-Rand Company | Compressor mounting system |
MX2009003175A (es) | 2006-09-25 | 2009-04-03 | Dresser Rand Co | Cubierta de acceso para bobina conectora presurizada. |
WO2008039446A2 (en) | 2006-09-25 | 2008-04-03 | Dresser-Rand Company | Fluid deflector for fluid separator devices |
CA2663868C (en) | 2006-09-26 | 2015-11-10 | William C. Maier | Improved static fluid separator device |
US7736409B2 (en) * | 2007-04-27 | 2010-06-15 | Furrow Technologies, Inc. | Cyclone processing system with vortex initiator |
US8408879B2 (en) | 2008-03-05 | 2013-04-02 | Dresser-Rand Company | Compressor assembly including separator and ejector pump |
US8034143B2 (en) * | 2008-03-18 | 2011-10-11 | Uti Limited Partnership | Cyclone |
US8176766B1 (en) * | 2008-03-27 | 2012-05-15 | Alcotek, Inc. | Liquid and solid trapping mouthpiece |
US8079805B2 (en) | 2008-06-25 | 2011-12-20 | Dresser-Rand Company | Rotary separator and shaft coupler for compressors |
US8062400B2 (en) | 2008-06-25 | 2011-11-22 | Dresser-Rand Company | Dual body drum for rotary separators |
US7922218B2 (en) | 2008-06-25 | 2011-04-12 | Dresser-Rand Company | Shear ring casing coupler device |
US7867310B2 (en) * | 2009-01-29 | 2011-01-11 | General Electric Company | Method and apparatus for separating air and oil |
JP2010227924A (ja) * | 2009-03-03 | 2010-10-14 | Ricoh Co Ltd | 分級装置及び分級方法 |
US8357232B1 (en) | 2009-03-09 | 2013-01-22 | Casella Waste Systems, Inc. | System and method for gas separation |
US8210804B2 (en) | 2009-03-20 | 2012-07-03 | Dresser-Rand Company | Slidable cover for casing access port |
US8087901B2 (en) | 2009-03-20 | 2012-01-03 | Dresser-Rand Company | Fluid channeling device for back-to-back compressors |
US8061972B2 (en) | 2009-03-24 | 2011-11-22 | Dresser-Rand Company | High pressure casing access cover |
WO2011034764A2 (en) | 2009-09-15 | 2011-03-24 | Dresser-Rand Company | Improved density-based compact separator |
US20110097216A1 (en) * | 2009-10-22 | 2011-04-28 | Dresser-Rand Company | Lubrication system for subsea compressor |
BR112012020085B1 (pt) | 2010-02-10 | 2020-12-01 | Dresser-Rand Company | aparelho de coleta para um separador e método de separação |
US8673159B2 (en) | 2010-07-15 | 2014-03-18 | Dresser-Rand Company | Enhanced in-line rotary separator |
US8663483B2 (en) | 2010-07-15 | 2014-03-04 | Dresser-Rand Company | Radial vane pack for rotary separators |
WO2012012018A2 (en) | 2010-07-20 | 2012-01-26 | Dresser-Rand Company | Combination of expansion and cooling to enhance separation |
US8821362B2 (en) | 2010-07-21 | 2014-09-02 | Dresser-Rand Company | Multiple modular in-line rotary separator bundle |
US8596292B2 (en) | 2010-09-09 | 2013-12-03 | Dresser-Rand Company | Flush-enabled controlled flow drain |
US9024493B2 (en) | 2010-12-30 | 2015-05-05 | Dresser-Rand Company | Method for on-line detection of resistance-to-ground faults in active magnetic bearing systems |
US8994237B2 (en) | 2010-12-30 | 2015-03-31 | Dresser-Rand Company | Method for on-line detection of liquid and potential for the occurrence of resistance to ground faults in active magnetic bearing systems |
WO2012138545A2 (en) | 2011-04-08 | 2012-10-11 | Dresser-Rand Company | Circulating dielectric oil cooling system for canned bearings and canned electronics |
US8876389B2 (en) | 2011-05-27 | 2014-11-04 | Dresser-Rand Company | Segmented coast-down bearing for magnetic bearing systems |
US8851756B2 (en) | 2011-06-29 | 2014-10-07 | Dresser-Rand Company | Whirl inhibiting coast-down bearing for magnetic bearing systems |
RU2592933C2 (ru) * | 2014-12-29 | 2016-07-27 | Федеральное государственное бюджетное научное учреждение "Всероссийский научно-исследовательский институт крахмалопродуктов" | Центробежный классификатор |
CN105880001B (zh) * | 2016-05-09 | 2023-07-04 | 博亿(深圳)工业科技有限公司 | 搅拌式研磨分离器、研磨分离装置及研磨装置 |
RU2657280C2 (ru) * | 2016-12-01 | 2018-06-09 | ФЕДЕРАЛЬНОЕ ГОСУДАРСТВЕННОЕ БЮДЖЕТНОЕ УЧРЕЖДЕНИЕ НАУКИ Государственный геологический музей им. В.И. Вернадского Российской академии наук ГГМ РАН | Пневмосепаратор для гравитационного обогащения пылевидных материалов |
DE202018103655U1 (de) | 2017-07-03 | 2018-07-26 | Outotec (Finland) Oy | Zyklon mit Leitschaufeln |
CN109759326A (zh) * | 2019-03-28 | 2019-05-17 | 北京化工大学 | 涡流空气分级机对数螺旋线型导风叶片 |
CN114458419B (zh) * | 2022-01-30 | 2023-05-02 | 西北工业大学 | 一种带螺旋线型进口流道的油气分离器 |
CN118088251B (zh) * | 2024-04-29 | 2024-07-16 | 山西路桥青银二广高速公路太原联络线有限公司 | 一种隧道施工用除尘装置 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2182862A (en) * | 1934-04-10 | 1939-12-12 | Thomas B Allardice | Separating method and apparatus |
US2087789A (en) * | 1935-08-14 | 1937-07-20 | Thomas B Allardice | Cinder removal and disposal apparatus |
US2738855A (en) * | 1953-04-28 | 1956-03-20 | Fallon John | Apparatus for separating dust from gases |
US2989146A (en) * | 1958-06-27 | 1961-06-20 | Claude B Schneible Co | Separating apparatus |
US3406504A (en) * | 1966-12-13 | 1968-10-22 | American Air Filter Co | Combined gas moving and gas cleaning apparatus |
SU721132A1 (ru) * | 1977-02-16 | 1980-03-15 | Специальное Конструкторско-Технологическое Бюро "Дезинтегратор" Республиканского Объединения "Эстколхозстрой" | Классификатор |
DE3229747C2 (de) * | 1982-08-10 | 1985-09-19 | Wacker-Chemie GmbH, 8000 München | Verfahren zur Windsichtung feinstkörniger Pulver und Vorrichtung zur Durchführung des Verfahrens |
DE3814458A1 (de) * | 1988-04-28 | 1989-11-09 | Krupp Polysius Ag | Windsichter |
US4969934A (en) * | 1989-08-04 | 1990-11-13 | The United States Of America As Represented By The United States Department Of Energy | Method for improved gas-solids separation |
-
1991
- 1991-11-15 DE DE4137633A patent/DE4137633A1/de not_active Withdrawn
-
1992
- 1992-11-15 EP EP92923358A patent/EP0612271B1/de not_active Expired - Lifetime
- 1992-11-15 JP JP5508982A patent/JP2957700B2/ja not_active Expired - Lifetime
- 1992-11-15 DE DE59206583T patent/DE59206583D1/de not_active Expired - Lifetime
- 1992-11-15 WO PCT/EP1992/002628 patent/WO1993009883A1/de active IP Right Grant
- 1992-11-15 ES ES92923358T patent/ES2089576T3/es not_active Expired - Lifetime
- 1992-11-15 US US08/240,716 patent/US5496394A/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9309883A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0612271B1 (de) | 1996-06-12 |
DE4137633A1 (de) | 1993-05-19 |
ES2089576T3 (es) | 1996-10-01 |
JPH07501009A (ja) | 1995-02-02 |
DE59206583D1 (de) | 1996-07-18 |
JP2957700B2 (ja) | 1999-10-06 |
WO1993009883A1 (de) | 1993-05-27 |
US5496394A (en) | 1996-03-05 |
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