EP0560863B1 - Tauchrohr für vorrichtungen zum auftrennen von stoffgemengen - Google Patents

Tauchrohr für vorrichtungen zum auftrennen von stoffgemengen Download PDF

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Publication number
EP0560863B1
EP0560863B1 EP92900797A EP92900797A EP0560863B1 EP 0560863 B1 EP0560863 B1 EP 0560863B1 EP 92900797 A EP92900797 A EP 92900797A EP 92900797 A EP92900797 A EP 92900797A EP 0560863 B1 EP0560863 B1 EP 0560863B1
Authority
EP
European Patent Office
Prior art keywords
dipping tube
axis
guide
medium
guide plate
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
Application number
EP92900797A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0560863A1 (en
Inventor
Josef Keuschnigg
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.)
Cessione zyklontechnik GmbH
Original Assignee
Keuschnigg Josef Dipl-Ing
Voestalpine Krems Finaltechnik 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 Keuschnigg Josef Dipl-Ing, Voestalpine Krems Finaltechnik GmbH filed Critical Keuschnigg Josef Dipl-Ing
Publication of EP0560863A1 publication Critical patent/EP0560863A1/xx
Application granted granted Critical
Publication of EP0560863B1 publication Critical patent/EP0560863B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B04C5/08—Vortex chamber constructions
    • B04C5/103—Bodies or members, e.g. bulkheads, guides, in the vortex chamber
    • 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
    • B04C5/12—Construction of the overflow ducting, e.g. diffusing or spiral exits
    • B04C5/13—Construction of the overflow ducting, e.g. diffusing or spiral exits formed as a vortex finder and extending into the vortex chamber; Discharge from vortex finder otherwise than at the top of the cyclone; Devices for controlling the overflow
    • 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
    • B04C5/12—Construction of the overflow ducting, e.g. diffusing or spiral exits
    • B04C5/13—Construction of the overflow ducting, e.g. diffusing or spiral exits formed as a vortex finder and extending into the vortex chamber; Discharge from vortex finder otherwise than at the top of the cyclone; Devices for controlling the overflow
    • B04C2005/136—Baffles in the vortex finder

Definitions

  • the invention relates to an immersion tube for devices for separating mixtures of substances from at least one liquid or gaseous medium and at least one liquid or solid substance which has a higher specific weight than the medium, under the action of centrifugal forces, by means of which the material is at least partially freed Medium is discharged from the device, with a guide device at one end of the dip tube, the guide device consisting of at least one curved guide plate and the distance of the guide plate from the longitudinal axis of the dip tube becoming increasingly smaller in the circumferential direction.
  • Devices for separating mixtures of at least one substance and a medium are known for example from EP-A-398 864.
  • dip tubes are provided for the exit of the substance or substances to be separated, at least partially, preferably completely, medium, which protrude into the separation chamber.
  • baffles in the form of baffles between the immersion tubes, which run in the direction of the flow from the inside to the outside and a reversal of the direction of flow of the medium when passing from the room in which the mixture of substances is set into rotation in the space in which the actual separation takes place.
  • propeller-like guidance devices are in the prior art known with several blades at the inlet end of the dip tube, the individual blades being directed so that they are intended to reduce or completely eliminate the rotational movement of the medium entering the dip tube.
  • these embodiments have not become established in practice due to fluidic problems. The reason for this is that the actual flow directions in the area of the dip tube mouth are not known.
  • the invention has for its object to further develop the known dip tubes in such a way that the transfer of the medium from the separation chamber into or in two coaxially opposite and in the opposite direction discharging medium discharge tubes is improved in the dip tubes.
  • the design of the immersion tubes according to the invention should be suitable for separating devices according to EP-A-398 864.
  • this object is achieved in an immersion tube of the type mentioned in the introduction in that the radii of the guide plate lying in normal planes to the axis increase in the axial direction from the free edge of the guide plate opposite the immersion tube to the mouth of the immersion tube.
  • the rotating medium in the area of the mouth of the immersion tube through the guide device not only radial, but also an axial acceleration, i.e. If an acceleration is given in the outflow direction of the medium through the dip tube, the medium passes from the separation chamber into the dip tube or the dip tubes, if two dip tubes are provided, in a streamlined manner and with little energy loss.
  • the guide device simultaneously gives the medium in the space lying outside the mouth of the dip tube and inside the lateral surface of the dip tube a radially inward and an axial acceleration, the passage into the dip tube or into the dip tubes improved.
  • the guide device in the invention consists of at least one curved guide plate, which is inclined at an acute angle to the axis of the immersion tube, the medium is forced due to the special shape of the guide plates of the guide device according to the invention by the medium striving to rotate at a constant turning radius to enter the dip tube and the thrust (acceleration) given to the outflowing medium by the guide device on the dip tube is increased.
  • An embodiment of the dip tube according to the invention is characterized in that the guide device has at least one partially conical, in particular partially truncated cone-shaped guide plate, the axis of curvature of which preferably runs parallel to the axis of the dip tube and is offset from this axis and the largest radius of curvature of which is greater than the radius of the dip tube and its smallest radius of curvature is smaller than the radius of the dip tube.
  • the guide plate has the shape of a truncated cone shell or, in the case of several guide plates, a partial truncated cone shell, the edge of which lies at the end with the larger radius and connects to the dip tube.
  • This embodiment has the advantage that the baffle can be unwound.
  • a structurally simple design of the dip tube with its guide device results if, according to a further proposal of the invention, it is provided that the edge of the guide plate is connected to the edge of the dip tube.
  • the favorable influencing of the flow of the medium from the separation chamber into the immersion tube or the immersion tubes under the action of the guide plate, which peels off layers of the rotating medium and guides into the immersion tube or the immersion tubes, can be improved if according to the invention provides that two or more identical guide plates, the axes of curvature of which are preferably parallel to one another and to the axis of the dip tube, are provided.
  • the dip tube according to the invention can also be characterized in that the guide device has at least one guide plate which extends about 360 ° around the axis, or that in the case of a guide device with more than one guide plate, each guide plate is about the number of guide plates corresponding fraction of about 360 ° around the axis.
  • baffles are arranged symmetrically with respect to the axis of the dip tube.
  • the axes of curvature of the guide plates are at equal distances from the axis of the dip tube and are diametrically opposed to one another with respect to the axis of the dip tube.
  • the edges of the guide plates, which run approximately in the direction of the axis of the dip tube are preferably straight and lie in one plane in the case of two guide plates, in which the axes of curvature also lie Baffles and the axis of the dip tube are, or if there are more than two baffles in a cylinder jacket which is concentric with the axis of the dip tube.
  • the openings delimited by the substantially axially parallel edges of the guide plates or the edge of the dip tube are open in the direction of rotation of the medium.
  • the openings delimited by the edges of the guide plates or the edge of the dip tube, which are oriented essentially axially parallel are open against the direction of rotation of the medium.
  • the invention can be applied with particular advantage, but not exclusively, to devices as are known from EP-A-398 864.
  • the invention therefore also extends to a device for separating at least one substance from a liquid or gaseous medium by centrifugal forces, which substance has a specific weight or mass different from the medium, in particular for separating specifically heavier substances from a liquid or gas stream, with a housing, with means for generating a rotational movement of the mixture of substance and medium in an annular or spiral space and with a separation chamber in which outlet openings are provided for the medium at least partially freed from the substance and for the separated substance, the outlet opening for the cleaned medium is formed by at least one dip tube projecting into the separation chamber.
  • the device is characterized according to the invention in that the immersion tube is designed according to one or more of claims 1 to 20.
  • An immersion tube 1 which in a separation chamber of a separation device (not shown further), which may for example, but preferably have one of the constructions known from EP-A-398 864, has at its end a guide device 2 made of preferably one to three identically designed guide plates 3
  • the guide plates 3 are curved in the shape of a truncated cone, their axes of curvature 4 being aligned parallel to the axis 5 of the dip tube 1.
  • the axes of curvature 4 of the guide plates 3 are arranged at a distance from the axis 5 of the dip tube 1.
  • the arrangement is such that both axes of curvature 4 of the guide plates 3 from the axis 5 of the dip tube 1 have the same distance a.
  • the guide plates 3 have the radius of curvature r at their free edges 6 and are connected at their end with the larger radius of curvature R to the edge 7 of the end of the dip tube 1 projecting into the separation chamber.
  • this results in an edge 7 that is curved in two directions and semicircular in plan view (corresponding to the sectional view of FIG. 2), which extends from the edges of the guide plates 3 and the edge 17 of the dip tube 1 is formed.
  • This edge 7 indicates approximately the flow path of the medium in the area of the two baffles 3 before it enters the dip tube 1.
  • the arrangement and design of the two guide plates 3 described results in the fact that in the direction of rotation of the medium (see arrow 11 in FIG. 2) they increasingly approach the axis 5 of the dip tube 1 and that the generatrix of the partial truncated cone of the guide plates 3 becomes axis 5 of the dip tube 1 are inclined at an acute angle.
  • the described design of the two guide plates 3 of the guide device 2 results in addition to the mouth 13 which is perpendicular to the axis 5, two inlet slots 12, each of adjacent edges 8 and 9 of the two guide plates 3 and from the edge 14 - this edge 14 runs parallel to Axis 5 of the dip tube 1 - be limited at the end of the dip tube 1.
  • the slots 12 merge into the opening 13.
  • Fig. 4 shows one of the guide plates 3 of the guide device 2 in a developed, flat state, i.e. its cutting.
  • the edge 15 shows a development of the end of the immersion tube 1, on which the guide device 2 is arranged from the two guide plates 3 and is connected to the edge 17. It should be noted that part of the edge 15 forms the edge 14 which delimits the slot 12. The rest of the edge 15 is adjacent to the edge 16 at the other end of the bend when the dip tube 1 is closed.
  • each guide plate 3 acts on the medium over half a revolution of the medium or over half the circumference of the separation chamber. If more than two baffles 3 are provided, each of these acts on the medium by way of the fraction of the baffle corresponding to the number of baffles (for example a third, a quarter, etc.).
  • the guide device 2 with its generally two, but also three in certain constructions (see FIG. 6) or four guide plates 3, can also be referred to as a "screw diffuser".
  • a difference between the guide device 2 according to the invention and the guide devices of the prior art is that the latter is defined on the one hand in the plane by the end of the dip tube, or in a cylinder surface which is defined by the outer surface of the dip tube.
  • the guide device according to the invention acts in the space between the two surfaces mentioned (mouth plane and imaginary extension of the outer surface of the dip tube).
  • the peripheral speed or the rotary movement of the medium is converted into an axial movement immediately after entering the area of the guide plates 3.
  • This supported by the shape of the guide devices according to the invention, also prevents that only radial movements of the medium take place in the area of the guide plates. Rather, an axial outflow movement of the medium occurs at the same time. This prevents a pure rotational movement of the medium from taking place in the region of the mouth end of the dip tube.
  • the axes 4 of the guide plates 3 are not necessarily aligned parallel to the axis 5 of the dip tube 1.
  • baffles 3 with the shape of a partial jacket of an inclined cone with an axis parallel to the axis 5 of the dip tube 1 are also conceivable.
  • the two guide plates 3 extend over 270 ° (in the embodiment of FIGS. 1 to 3, the guide plates 3 extend over 180 °), so that there are diffuser-like inlet channels which become wider away from the inlet openings 12. This improves the recovery of pressure from the flow velocity of the medium. As a result, the gases flowing into the dip tube are released in the direction in which they flow through the guide device to the dip tube.
  • an end plate 30 with an edge 31 curved away from the dip tube 1 is also provided.
  • This end plate 30, which can also be provided in the other embodiments of the guide device according to the invention, prevents the area in which there is negative pressure outside the dip tube 1 from spreading into the dip tube 1.

Landscapes

  • Centrifugal Separators (AREA)
  • Cyclones (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • External Artificial Organs (AREA)
  • Mram Or Spin Memory Techniques (AREA)
  • Processing Of Solid Wastes (AREA)
  • Physical Water Treatments (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Electroluminescent Light Sources (AREA)
  • Combined Devices Of Dampers And Springs (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
EP92900797A 1990-12-13 1991-12-11 Tauchrohr für vorrichtungen zum auftrennen von stoffgemengen Expired - Lifetime EP0560863B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT2529/90 1990-12-13
AT0252990A AT395385B (de) 1990-12-13 1990-12-13 Tauchrohr fuer vorrichtungen zum auftrennen von stoffgemengen
PCT/AT1991/000127 WO1992010300A1 (de) 1990-12-13 1991-12-11 Tauchrohr für vorrichtungen zum auftrennen von stoffgemengen

Publications (2)

Publication Number Publication Date
EP0560863A1 EP0560863A1 (en) 1993-09-22
EP0560863B1 true EP0560863B1 (de) 1994-07-27

Family

ID=3535915

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92900797A Expired - Lifetime EP0560863B1 (de) 1990-12-13 1991-12-11 Tauchrohr für vorrichtungen zum auftrennen von stoffgemengen

Country Status (16)

Country Link
US (1) US5275730A (fi)
EP (1) EP0560863B1 (fi)
JP (1) JP3318895B2 (fi)
AT (2) AT395385B (fi)
CA (1) CA2098400C (fi)
CZ (1) CZ285260B6 (fi)
DE (1) DE59102390D1 (fi)
DK (1) DK0560863T3 (fi)
ES (1) ES2059206T3 (fi)
FI (1) FI932598A0 (fi)
HU (1) HU212086B (fi)
NO (1) NO920954L (fi)
PL (1) PL167673B1 (fi)
RU (1) RU2079379C1 (fi)
SK (1) SK279559B6 (fi)
WO (1) WO1992010300A1 (fi)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013173854A1 (de) 2012-05-24 2013-11-28 A Tec Holding Gmbh Vorrichtung zum abtrennen von stoffen aus einem medium

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0830459B1 (en) 1995-04-11 2007-01-24 The General Hospital Corporation Reverse two-hybrid systems
US6129775A (en) * 1998-08-19 2000-10-10 G.B.D. Corp. Terminal insert for a cyclone separator
US6039698A (en) * 1998-09-30 2000-03-21 Becton Dickinson And Company Method and apparatus for removing barrier-type closures from blood collection tubes
AT413339B (de) * 2003-12-30 2006-02-15 Pmt Gesteinsvermahlungstechnik Leiteinrichtung für fliehkraftabscheider, insbesondere zyklonabscheider
DE202006007625U1 (de) * 2006-05-11 2007-09-20 Hengst Gmbh & Co.Kg Zyklon mit Abweiseelement als Abscheider im Kurbelgehäuseentlüftungssystem
EP2967269B1 (en) * 2014-01-28 2016-09-21 Koninklijke Philips N.V. Cyclonic separation device
AT517463B1 (de) 2015-12-22 2017-02-15 A Tec Holding Gmbh Leiteinrichtung einer Abscheidevorrichtung
DE202016102385U1 (de) * 2016-05-04 2016-05-24 Outotec (Finland) Oy Zyklon und Tauchrohr zur Separation von Partikeln aus einem Gas
RU2663170C1 (ru) * 2017-10-30 2018-08-01 Общество с ограниченной ответственностью "Научно-технический центр "Бакор" Устройство для очистки газа от пыли (варианты)
EP3539638B1 (en) * 2018-03-14 2021-02-24 Tata Consultancy Services Limited Integrated apparatus for mixing and separating fluid phases and method therefor

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT13036B (de) * 1901-10-02 1903-08-25 Vereinigte Maschinenfabrik Augsburg & Maschinenbauges Nuernberg Ag Durch Fliehkraft wirkender Luftreiniger mit im Luftabzugrohr angeordneten festen Scheidewänden.
GB245636A (en) * 1925-03-14 1926-01-14 Davidson & Co Ltd Improvements in and relating to dust collectors or separators and the like
AT130364B (de) * 1927-08-18 1932-11-25 Anonima Stabilimenti Di Dalmin Maschine zum Bewickeln der Außenfläche von Metallrohren beliebiger Länge mit einem Gemisch aus Fasermaterial und hydraulischen Bindemitteln sowie zur Herstellung von Rohren aus einer derartigen Masse.
BE521267A (fi) * 1952-07-11
GB1422531A (en) * 1972-02-07 1976-01-28 English Clays Lovering Pochin Hoses including devices for inducing streamline flow in fluids
US4769050A (en) * 1987-05-20 1988-09-06 Arvin Industries, Inc. Liquid separator assembly
DE8807791U1 (fi) * 1988-06-15 1988-12-15 Dozent Doppelzyklon-Entstaubungsanlagen Gmbh, 4300 Essen, De
DE3907457C2 (de) * 1989-03-08 1997-01-16 Metallgesellschaft Ag Verfahren zur Abscheidung flüssiger Asche
FI902329A0 (fi) * 1989-05-18 1990-05-09 Voest Alpine Krems Avskiljningsfoerfarande och -anordning.
US5180257A (en) * 1989-12-16 1993-01-19 Onoda Cement Co. Ltd. Straightening instrument and cyclone

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013173854A1 (de) 2012-05-24 2013-11-28 A Tec Holding Gmbh Vorrichtung zum abtrennen von stoffen aus einem medium

Also Published As

Publication number Publication date
ATE109029T1 (de) 1994-08-15
JPH06505671A (ja) 1994-06-30
SK279559B6 (sk) 1998-12-02
EP0560863A1 (en) 1993-09-22
CS377891A3 (en) 1992-06-17
WO1992010300A1 (de) 1992-06-25
ES2059206T3 (es) 1994-11-01
JP3318895B2 (ja) 2002-08-26
NO920954D0 (no) 1992-03-11
CZ285260B6 (cs) 1999-06-16
CA2098400A1 (en) 1992-06-14
HU9200221D0 (en) 1992-08-28
HUT64882A (en) 1994-03-28
DK0560863T3 (da) 1994-09-26
AT395385B (de) 1992-12-10
ATA252990A (de) 1992-05-15
RU2079379C1 (ru) 1997-05-20
US5275730A (en) 1994-01-04
HU212086B (en) 1996-02-28
PL167673B1 (pl) 1995-10-31
FI932598A (fi) 1993-06-07
DE59102390D1 (de) 1994-09-01
FI932598A0 (fi) 1993-06-07
NO920954L (no) 1992-06-25
CA2098400C (en) 2001-05-08

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