EP0596377B1 - Tauchrohr für einen Fliehkraftabscheider (Zyklon) - Google Patents

Tauchrohr für einen Fliehkraftabscheider (Zyklon) Download PDF

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Publication number
EP0596377B1
EP0596377B1 EP93117287A EP93117287A EP0596377B1 EP 0596377 B1 EP0596377 B1 EP 0596377B1 EP 93117287 A EP93117287 A EP 93117287A EP 93117287 A EP93117287 A EP 93117287A EP 0596377 B1 EP0596377 B1 EP 0596377B1
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EP
European Patent Office
Prior art keywords
segments
dip tube
segment
tube according
arranged above
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
EP93117287A
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German (de)
English (en)
French (fr)
Other versions
EP0596377A1 (de
Inventor
Hans-Dietmar Dr.Rer.Nat. Maury
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Individual
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Individual
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Application filed by Individual filed Critical Individual
Publication of EP0596377A1 publication Critical patent/EP0596377A1/de
Application granted granted Critical
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    • 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
    • B04C5/085—Vortex chamber constructions with wear-resisting arrangements
    • 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

Definitions

  • the invention relates to an immersion tube for a centrifugal separator, which is composed of a plurality of interconnected, plate-shaped segments, each with a similar base body, which are arranged one above the other in several planes, with each segment of a plane being simultaneously connected in two segments, one above the other, for vertical connection of the segments arranged level is suspended under the action of gravity, and the contact surfaces of the respective segment required for connection to the above-arranged segments are at least partially designed in the form of bevels oriented toward the outside of the dip tube.
  • Dip tubes are used in cyclones to discharge the more volatile constituents upwards along the axis of the cyclone, without being impeded by the tangentially flowing medium.
  • the size of the dip tube In order to achieve optimal flow conditions in the cyclone, the size of the dip tube must be adapted to the dimensions of the cyclone. Such adjustments cannot be made in many known immersion tubes, since these are specially adapted to a certain type of cyclone in terms of structure and design.
  • a dip tube with the features mentioned above is known from WO88 / 00310.
  • This dip tube is composed of a large number of plate-shaped segments, which are provided at their upper and lower ends with extensions which, in view, have an approximately bone-shaped design. In the area of the extensions there are short pins or nubs, each in corresponding depressions of the protrude into the next following segment, whereby the segments are clamped together.
  • each segment of a level is simultaneously suspended in two segments of the level arranged above under the effect of gravity.
  • the contact surfaces, which each serve to connect to the segments arranged above are partially designed in the form of bevels aligned with the outside of the dip tube.
  • the individual segments of this dip tube are relatively thick-walled and thus heavy in design, in order to ensure the stability of the composite dip tube with regard to tangential flow forces due to their own weight.
  • the connection technology described in this publication is less suitable for achieving sufficient strength against flow influences even in the case of a dip tube construction with thin-walled plates.
  • the invention has for its object to provide a dip tube for a centrifugal separator, in which regardless of the weight of the individual segments, both in terms of radial and tangential forces, a great strength of the dressing can be achieved.
  • the immersion tube is highly stable even at high flow speeds within the centrifugal separator.
  • the immersion tube can be extended as desired in the manner of a modular system by attaching further rings composed of individual segments.
  • the immersion tube can be specifically adapted to the flow conditions prevailing in the respective centrifugal separator. Since the contact surfaces of the respective segment required for connection to a segment arranged above are at least partially designed in the form of bevels which are oriented towards the outside of the dip tube, new segments can be securely attached to existing segments. As a result of the alignment of the contact surfaces designed in the form of bevels, a radially inwardly acting force is exerted on the suspended segment until it rests on adjacent segments with the effect of self-locking.
  • the dip tube according to the invention therefore also allows a particularly simple replacement of its individual parts.
  • a further development is characterized in that the contact surfaces of the respective segment required for connection to the segment arranged above are also partially designed in the manner of bevels which are oriented towards the inside of the dip tube.
  • the individual segments within the assembly are reliably self-locked, so that the dip tube behaves stably even at high flow speeds within the centrifugal separator.
  • At least part of the contact surfaces oriented obliquely towards the inside of the dip tube extends in the vertical direction. This combines the advantage of a great positional stability of the individual segments within the association with the advantage of an easy interchangeability of the individual segments.
  • the angle of the bevels to the plane formed by the flat sides of the segments is 30 ° to 60 °. An angle of approximately 45 ° is preferred.
  • the abutment surfaces which are designed as inclined surfaces, are formed on lugs and / or recesses in the segments which are designed in the manner of bone ends.
  • the individual segments then form a kind of "puzzle".
  • the lugs are preferably arranged at the top of the segments and can be inserted flush in the corresponding recesses of the segments arranged above.
  • dip tube is characterized by flat pieces attached to the outside of the lugs and lying flat against the outside of the segments arranged above.
  • the lugs and possibly also the flat pieces are preferably formed in one piece on the segments designed as a cast part.
  • dip tube has a conically tapering shape towards the bottom. This also improves the flow conditions inside and outside the dip tube.
  • the cyclone shown in FIG. 1 has an inlet 1 opening into the upper cylindrical part, a first outlet 2 for the heavier components separated in the centrifugal field and a second outlet 3 for the lighter components flowing upwards.
  • the second outlet 3 is extended downwards in the form of a conical dip tube 4.
  • the dip tube 4 as can be seen in FIG. 1, is composed of a large number of individual segments 5 which, each combined into rings, are suspended in the cyclone.
  • a total of six rings are provided, each ring in turn being composed of a plurality of individual segments 5.
  • the individual segments 5 are plate-shaped and have a bend corresponding to the rounding of the conical dip tube 3.
  • all segments 5 of a ring are identical, but the segments 5 of the respective rings have a different width, which decreases from top to bottom.
  • Each of the elements 5 consists of a one-piece cast steel part and therefore has a relatively high temperature resistance.
  • the structure of a single segment 5 will now be explained with reference to FIGS. 2 and 3.
  • the segment 5 consists primarily of a plate 6, which is square and has a slightly pronounced trapezoidal shape due to the conicity of the dip tube as a whole.
  • the plate 6 as a whole is bent in accordance with the respective rounding of the dip tube, as can be seen in particular from the sectional view according to FIG. 3.
  • a shoulder 7 is formed symmetrically, which has approximately the shape of a bone end.
  • recesses 8, 9 are provided in the two lower corners of the plate 6, the geometry of the recess 8 arranged on the right corresponding to the left half of the shoulder 7 and the geometry of the recess 9 arranged on the left corresponding to the right half of the shoulder 7 in an almost identical manner. If two of the segments 5 shown in FIG. 2 are therefore arranged directly next to one another, the then adjacent recesses 8, 9 form a composite recess into which the shoulder 7 of a further segment 5 fits exactly. The assembly of individual segments 5 can therefore best be compared to a puzzle.
  • the extension 7 shaped in the manner of a bone end has an upper, horizontal contact surface 10, two lateral, vertically running contact surfaces 11 and two contact surfaces 12 arranged in the undercut region.
  • the contact surfaces 12 do not run horizontally, but slightly inclined, one in the plane formed by the flat sides of the segment 5 Have angle w 1 to the vertical.
  • dashed lines and an additional hatching it is shown in FIG. 6 that all contact surfaces 10, 11, 12 of attachment 7 are designed in the form of bevels, the contact surfaces or bevels 10 and 11 being oriented differently from the contact surfaces or Slants 12. Because the slope of the slopes 10 and 11 is such that they are oriented towards the inside of the dip tube, while the slope 12 points outwards. All of the slopes 10, 11, 12 are inclined at an angle of approximately 45 ° to the plane formed by the flat sides of the segments 5.
  • the bevels 12 initially slide along the counter-bevels 12a until the inwardly directed bevels 10, 11 rest flush against the outward-facing counter bevels 10a, 11a. In this way, not only is the segment 5 hooked into the segments 5a, 5b arranged above it, but additionally the two segments 5a, 5b are clamped together, since the angle w 1 between the bevels 12 and counter-bevels 12a and the vertical a force pulling the segments 5a, 5b towards each other is generated.
  • a connecting piece 13 is assigned to each segment 5c.
  • the bone-shaped connecting piece 13 shown in FIG. 4 is constructed in its upper half in the same way as the attachment 7. With the lower half, the connecting piece 13 can be inserted into a recess 14 of the segment 5c corresponding to this half. Segment 5c and connecting piece 13 can then be used together in the same way in a group of further segments, as is the case for segment 5 according to the variant according to FIGS. 2 and 3.
  • the segment 5 according to FIGS. 2 and 3 is additionally provided with a flat piece 15 placed on the outside of the extension 7.
  • the directly cast on the segment 5 flat piece 15 lies flat in the assembled state on the outside of the above arranged segments and leads to the fact that the segment 5 as a whole can not be pivoted during insertion or removal in or out of the dressing, but always must be performed at an angle but in a vertical orientation.
  • the flat piece 15 facilitates the handling of the segment 5.

Landscapes

  • Cyclones (AREA)
  • Prostheses (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Catching Or Destruction (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
EP93117287A 1992-10-31 1993-10-26 Tauchrohr für einen Fliehkraftabscheider (Zyklon) Expired - Lifetime EP0596377B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4236895A DE4236895A1 (de) 1992-10-31 1992-10-31 Tauchrohr für einen Fliehkraftabscheider (Zyklon)
DE4236895 1992-10-31

Publications (2)

Publication Number Publication Date
EP0596377A1 EP0596377A1 (de) 1994-05-11
EP0596377B1 true EP0596377B1 (de) 1997-03-05

Family

ID=6471863

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93117287A Expired - Lifetime EP0596377B1 (de) 1992-10-31 1993-10-26 Tauchrohr für einen Fliehkraftabscheider (Zyklon)

Country Status (10)

Country Link
US (1) US5441081A (cs)
EP (1) EP0596377B1 (cs)
JP (1) JPH06198220A (cs)
AT (1) ATE149383T1 (cs)
CZ (1) CZ285467B6 (cs)
DE (2) DE4236895A1 (cs)
DK (1) DK0596377T3 (cs)
ES (1) ES2099882T3 (cs)
FI (1) FI934527A (cs)
SK (1) SK280099B6 (cs)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19825206A1 (de) * 1998-06-05 1999-12-09 Kloeckner Humboldt Wedag Zyklonabscheider
DE10214863A1 (de) * 2002-04-04 2003-10-16 Kloeckner Humboldt Wedag Zyklonabscheider
US8882873B2 (en) 2011-02-14 2014-11-11 David Brownlee Vortex finder for cyclone separator
WO2015017902A1 (en) * 2013-08-09 2015-02-12 Weir Minerals Australia Ltd Cyclone separator apparatus and methods of production
DE102014019472B4 (de) 2014-12-23 2018-01-04 Khd Humboldt Wedag Gmbh Tauchrohr für einen Zyklonabscheider
US10940492B2 (en) 2016-07-13 2021-03-09 Fosbel Wahl Holdings, Llc Thimble for cyclone separator
US10328439B2 (en) 2016-07-13 2019-06-25 Wahl Refractory Solutions, Llc Thimble for cyclone separator
US11484892B2 (en) * 2019-12-30 2022-11-01 General Electric Company Systems and methods for reducing particulate emissions
CN111672642B (zh) * 2020-06-10 2021-12-24 舟山市海大科学技术研究院有限责任公司 一种内置锥网式油污水分离旋流器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US716865A (en) * 1902-05-14 1902-12-30 Henri Choquet Interlocking bricks.
US1666284A (en) * 1920-02-20 1928-04-17 William A Gilchrist Construction of furnace walls and arches
DE2164503A1 (de) * 1971-12-24 1973-07-05 Tony Frederick Newell Baustein zur errichtung von mauern
DE3644339A1 (de) * 1986-12-23 1988-07-14 Krupp Polysius Ag Bauelement

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2733611C2 (de) * 1977-07-26 1982-10-14 Kernforschungsanlage Jülich GmbH, 5170 Jülich Transportleitung mit keramischer Innenisolierung zur Führung heißer Fluide
US4328839A (en) * 1980-09-19 1982-05-11 Drilling Development, Inc. Flexible drill pipe
US4475749A (en) * 1980-10-04 1984-10-09 Basf Aktiengesellschaft Flange coupling
DE3228902A1 (de) * 1982-08-03 1984-02-09 Klöckner-Humboldt-Deutz AG, 5000 Köln Zyklonabscheider
DK205583A (da) * 1983-05-09 1984-11-10 Hasle Klinker & Chamott Centralroer til cyklon til rensning af varme gasser
DK155552C (da) * 1986-06-27 1990-05-28 Hasle Klinker & Chamott Selvbaerende lodret roerkonstruktion af keramisk materiale

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US716865A (en) * 1902-05-14 1902-12-30 Henri Choquet Interlocking bricks.
US1666284A (en) * 1920-02-20 1928-04-17 William A Gilchrist Construction of furnace walls and arches
DE2164503A1 (de) * 1971-12-24 1973-07-05 Tony Frederick Newell Baustein zur errichtung von mauern
DE3644339A1 (de) * 1986-12-23 1988-07-14 Krupp Polysius Ag Bauelement

Also Published As

Publication number Publication date
US5441081A (en) 1995-08-15
SK280099B6 (sk) 1999-08-06
SK119593A3 (en) 1994-09-07
CZ285467B6 (cs) 1999-08-11
DK0596377T3 (da) 1997-09-08
DE4236895A1 (de) 1994-05-05
ES2099882T3 (es) 1997-06-01
CZ229893A3 (en) 1994-05-18
EP0596377A1 (de) 1994-05-11
JPH06198220A (ja) 1994-07-19
ATE149383T1 (de) 1997-03-15
DE59305596D1 (de) 1997-04-10
FI934527A (fi) 1994-05-01
FI934527A0 (fi) 1993-10-13

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