EP0346748A2 - Séparateur à cyclone - Google Patents

Séparateur à cyclone Download PDF

Info

Publication number
EP0346748A2
EP0346748A2 EP89110282A EP89110282A EP0346748A2 EP 0346748 A2 EP0346748 A2 EP 0346748A2 EP 89110282 A EP89110282 A EP 89110282A EP 89110282 A EP89110282 A EP 89110282A EP 0346748 A2 EP0346748 A2 EP 0346748A2
Authority
EP
European Patent Office
Prior art keywords
wall
cyclone
inlet channel
spiral
housing
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.)
Withdrawn
Application number
EP89110282A
Other languages
German (de)
English (en)
Other versions
EP0346748A3 (fr
Inventor
Georg Dipl.-Ing. Baukelmann
Siegbert Dr.-Ing. Schulz
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.)
DOZENT DOPPELZYKLON- ENTSTAUBUNGSANLAGEN GmbH
Original Assignee
DOZENT DOPPELZYKLON- ENTSTAUBUNGSANLAGEN GmbH
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 DOZENT DOPPELZYKLON- ENTSTAUBUNGSANLAGEN GmbH filed Critical DOZENT DOPPELZYKLON- ENTSTAUBUNGSANLAGEN GmbH
Publication of EP0346748A2 publication Critical patent/EP0346748A2/fr
Publication of EP0346748A3 publication Critical patent/EP0346748A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/02—Construction of inlets by which the vortex flow is generated, e.g. tangential admission, the fluid flow being forced to follow a downward path by spirally wound bulkheads, or with slightly downwardly-directed tangential admission
    • B04C5/04—Tangential inlets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/02—Construction of inlets by which the vortex flow is generated, e.g. tangential admission, the fluid flow being forced to follow a downward path by spirally wound bulkheads, or with slightly downwardly-directed tangential admission

Definitions

  • the invention relates to a cyclone separator with a cyclone housing which is cylindrical in the upper section and has a cover plate arranged in a radial plane, under which an inlet channel opens at the upper end of the cyclone housing along a circumferential gap formed therein and extends along a spiral arch with its outer wall applied to the cyclone housing.
  • an inlet channel opens at the upper end of the cyclone housing along a circumferential gap formed therein and extends along a spiral arch with its outer wall applied to the cyclone housing.
  • Such a cyclone separator is known from Figure 4 of WO86 / O5417.
  • the upper wall of the inlet channel runs in the plane of the cover plate of the cyclone housing and the outer wall of the inlet channel lies in the plane of the cover plate.
  • the spiral arch extends over a central angle of approximately 360 °.
  • the object of the invention is to make the inlet conditions for the dust-laden gas stream as favorable as possible in the interest of avoiding deposits, caking, dead water areas and reducing pressure losses.
  • the inlet channel projects in particular by about a quarter to a third of its cross-sectional height beyond the cover plate.
  • the lower edge of the inlet channel coincides with the lower edge of the circumferential gap in the cyclone housing.
  • the spiral arch preferably extends over a central angle of at least approximately 180 °.
  • the inlet channel is sufficiently long to provide the required pre-twist of the gas flow and, on the other hand, short enough to ensure that a downward axial component can be impressed on the gas flow introduced into the cyclone housing.
  • the circumferential gap begins approximately at the level of the radially outer end of the spiral arch, it is preferred that the circumferential gap, in contrast, begin to offset, in particular by a central angle of at least approximately 30 °.
  • the inlet housing shown in Figures 1 and 2 is placed on a cyclone separator of any embodiment above and forms with its peripheral wall the upper part of the cylindrical portion of the cyclone housing 1.
  • the cyclone housing 1 is closed at its upper end by a flat cover plate 2, which in a Radial plane of the cyclone housing 1 lies.
  • a peripheral gap 3 is formed in the peripheral wall thereof, which is delimited at the top by the cover plate 2.
  • an inlet channel 4 opens which, with its outer wall 5 along a spiral arch, which extends over a central angle of 180 °, runs around the cyclone housing 1 and merges tangentially into the wall of the cyclone housing 1 at the radially inner end 7 of the spiral arch.
  • the inlet channel 4 is also at the radially outer end 6 of the spiral arch by a quarter to a third of its cross-sectional height above the cover plate 2 upwards and slopes downward towards the radially inner end 7 of the spiral arch, where it steps with its upper wall 9 into the flat ceiling plate 2 merges.
  • the lower edge 10 of the circumferential gap 3 also extends inclined towards the radially inner end 7 of the spiral arch, and in particular parallel to the upper wall 9 of the inlet channel 4.
  • the spiral-arch-shaped part of the inlet duct 4 is preceded by a straight duct section 13 which, with its radially inner wall 8 at the level of the radially outer end 6 of the spiral arch, merges tangentially into the peripheral wall of the cyclone housing 1.
  • the peripheral gap 3 begins with its front edge offset by 30 ° along the spiral arc with respect to its radially outer end 6, so that the interior of the channel 4 up to the front edge 11 of the Circumferential gap 3 is covered with a cover section 12.
  • the lower boundary edge 10 of the circumferential gap 3 runs at the same level as the adjacent one. Part of the lower wall of the inlet duct 4.
  • FIGS. 3 to 6 show different cross-sectional shapes of the inlet channel 4 at the level of the radially outer end 6 of the spiral arch, which are preferred depending on the solids loading and the type of solids of the gas stream entering the cyclone.
  • the channel cross section shown in FIG. 3 is preferred for a medium solid loading of the gas stream.
  • This cross section is hexagonal.
  • the upper and lower hexagon sides are aligned perpendicular to the cyclone axis. Whereas the hexagon sides assigned to the radially inner wall and the outer wall of the inlet channel are aligned parallel to the cyclone axis and the two remaining hexagon sides lying opposite one another are positioned parallel to one another at an angle to the cyclone axis.
  • This cross-section is rectangular in the upper third with rounded corners and has the shape of a right-angled triangle in the remaining cross-section with a downward-pointing, acute-angled triangle tip that lies on the cyclone wall, the hypotenuse of the triangle being slightly concave.
  • the cross-sectional shape of the inlet channel 4 from FIG. 5 is intended for low solids loading of the gas stream.
  • This cross section is pentagonal, with the lower pentagon side sloping towards the cyclone wall towards the cyclone wall, the pentagon side adjoining it on the outer wall 5 of the inlet duct 4 running upwards parallel to the cyclone axis and the pentagon side adjoining the top wall rising obliquely to the cyclone axis, whereas the upper Wall 9 forming pentagon side is aligned perpendicular to the cyclone axis.
  • the cross-sectional shape of the inlet duct 4 from FIG. 6 is intended for sticky solids or those that tend to form caking.
  • the cross-sectional outline runs from the cover plate 2 of the cyclone housing along the upper duct wall 9 and the outer wall 5 of the inlet duct as a circular arc and then falls obliquely downwards along the lower duct wall towards the cyclone housing wall.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Cyclones (AREA)
EP19890110282 1988-06-15 1989-06-07 Séparateur à cyclone Withdrawn EP0346748A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8807793U DE8807793U1 (de) 1988-06-15 1988-06-15 Zyklonabscheider
DE8807793U 1988-06-15

Publications (2)

Publication Number Publication Date
EP0346748A2 true EP0346748A2 (fr) 1989-12-20
EP0346748A3 EP0346748A3 (fr) 1990-10-17

Family

ID=6825076

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890110282 Withdrawn EP0346748A3 (fr) 1988-06-15 1989-06-07 Séparateur à cyclone

Country Status (2)

Country Link
EP (1) EP0346748A3 (fr)
DE (1) DE8807793U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011032620A1 (fr) * 2009-09-21 2011-03-24 Outotec Oyj Cyclone pour la séparation de particules collantes de courants gazeux
WO2011047848A3 (fr) * 2009-10-21 2011-06-30 Outotec Oyj Appareil pour le traitement des solides et/ou des gaz

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE487016A (fr) * 1948-01-29
US3306461A (en) * 1964-08-18 1967-02-28 Int Minerals & Chem Corp Hydrocyclone
DE2038045C3 (de) * 1970-07-31 1981-12-10 Siemens AG, 1000 Berlin und 8000 München Zyklon
PL103934B1 (pl) * 1976-07-21 1979-07-31 Hydrocyklon do rozdzielania cieklych mieszanin
JPS5645775A (en) * 1979-09-25 1981-04-25 Sumitomo Cement Co Ltd Dust collecting apparatus
JPS59213460A (ja) * 1983-05-17 1984-12-03 Ube Ind Ltd サイクロン
DE3437037A1 (de) * 1984-10-09 1986-04-10 Krupp Polysius Ag, 4720 Beckum Zyklonanordnung
EP0215075B1 (fr) * 1985-03-19 1989-06-14 SCHULZ, Siegbert Separateur a cyclone avec deux chambres de separation et dispositfs statiques de guidage
DE8807792U1 (de) * 1988-06-15 1988-12-15 Dozent Doppelzyklon-Entstaubungsanlagen GmbH, 4300 Essen Zyklonabscheider

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011032620A1 (fr) * 2009-09-21 2011-03-24 Outotec Oyj Cyclone pour la séparation de particules collantes de courants gazeux
CN102574134A (zh) * 2009-09-21 2012-07-11 奥图泰有限公司 用于从气流中分离粘性微粒的旋风分离器
US8657934B2 (en) 2009-09-21 2014-02-25 Outotec Oyj Cyclone for separating sticky particles from gas streams
AU2010294892B2 (en) * 2009-09-21 2014-11-06 Outotec Oyj Cyclone for separating sticky particles from gas streams
EA021413B1 (ru) * 2009-09-21 2015-06-30 Ототек Оюй Циклон для очистки газового потока от слипающихся частиц
WO2011047848A3 (fr) * 2009-10-21 2011-06-30 Outotec Oyj Appareil pour le traitement des solides et/ou des gaz
US8834800B2 (en) 2009-10-21 2014-09-16 Outotec Oyj Apparatus for the treatment of solids and/or gases

Also Published As

Publication number Publication date
DE8807793U1 (de) 1988-12-15
EP0346748A3 (fr) 1990-10-17

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