EP0447802A2 - Capteur de tourbillon et procédé pour sa fabrication - Google Patents

Capteur de tourbillon et procédé pour sa fabrication Download PDF

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Publication number
EP0447802A2
EP0447802A2 EP91102142A EP91102142A EP0447802A2 EP 0447802 A2 EP0447802 A2 EP 0447802A2 EP 91102142 A EP91102142 A EP 91102142A EP 91102142 A EP91102142 A EP 91102142A EP 0447802 A2 EP0447802 A2 EP 0447802A2
Authority
EP
European Patent Office
Prior art keywords
immersion tube
grating
cyclone
tube
honeycombs
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Withdrawn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
EP91102142A
Other languages
German (de)
English (en)
Other versions
EP0447802A3 (en
Inventor
Roland Olbricht
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.)
Didier Werke AG
Original Assignee
Didier Werke AG
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 Didier Werke AG filed Critical Didier Werke AG
Publication of EP0447802A2 publication Critical patent/EP0447802A2/fr
Publication of EP0447802A3 publication Critical patent/EP0447802A3/de
Withdrawn legal-status Critical Current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
    • B04C5/12—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
    • B04C5/08—Vortex chamber constructions
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
    • F23J15/027—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using cyclone separators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B15/00—Fluidised-bed furnaces; Other furnaces using or treating finely-divided materials in dispersion
    • F27B15/003—Cyclones or chain of cyclones

Definitions

  • Such cyclones with a dip tube are used, for example, in fluidized bed furnaces, heat exchangers in cement rotary kilns or waste incineration plants.
  • the dip tubes are voluminous. For example, they have an inner diameter of 2.5 m and a height of 4 m.
  • the invention further relates to a method for producing the immersion tube in the cyclone.
  • the object of the invention is to propose an immersion tube of the type mentioned at the outset which has a longer service life than a metallic immersion tube and a lower weight than an immersion tube made of prefabricated ceramic components and whose assembly is simplified. Furthermore, it is an object of the invention to propose a method for producing the dip tube in the cyclone.
  • the dip tube of the type mentioned is characterized in that it consists of a metallic grating which forms a plurality of honeycombs by means of its webs, that at least the majority of the honeycombs are filled with a ceramic material which forms cores in the honeycombs that the end faces of the webs lying on the outer circumference and on the inner circumference of the dip tube are free of the ceramic material and that the webs carry the cores.
  • Such an immersion tube has numerous advantages: Its outer and inner surface is predominantly formed by the ceramic cores.
  • the ceramic material from which the cores are made can be selected for the respective application in such a way that it has the desired temperature resistance, acid resistance, abrasion resistance and / or alkali corrosion resistance.
  • the immersion tube Due to the metallic grating, the immersion tube has a certain flexibility, so that it is hardly sensitive to breakage.
  • the metallic grating is covered on most of its surface - except for the end faces - by the ceramic material against the gas flow. It is therefore protected by the ceramic material.
  • the metallic grille conducts the heat well, so that zonal overheating cannot occur.
  • the weight is significantly lower.
  • the immersion tube does not have to be prefabricated as a whole outside of the cyclone.
  • the grating can be assembled from individual parts in the cyclone.
  • the ceramic material can then be introduced into the honeycomb. This can be done either in the form of a ceramic mass or in the form of prefabricated cores.
  • a method according to the invention for producing the immersion tube in the cyclone is characterized in that individual parts of the grating are installed in the cyclone and are connected to one another to form the dip tube that an insert body is preferably inserted into the dip tube and that the ceramic material is introduced into the honeycomb of the grating from the outside of the dip tube.
  • the manufacture of the immersion tube is considerably simplified since the overall shape of the immersion tube does not have to be prefabricated outside the cyclone.
  • the production is also easier than in the case of the assembly of the immersion tube from individual prefabricated components.
  • a dip tube 3 with a vertical longitudinal axis L is installed in a cyclone 1 of a fluidized bed furnace 2.
  • a hot gas stream G which contains particles which separate in the dip tube 3 and fall down in the cyclone 1, enters the dip tube 3 from below.
  • the dip tube 3 consists of a metallic grating 4 which forms a multiplicity of honeycombs 5 (cf. FIGS. 2, 3, 4, 5).
  • the grating 4 is composed of individual sheet metal strips 6, which are connected to one another via tabs 7.
  • the tabs 7 of a sheet metal strip 6 are inserted through recesses 8 of an adjacent sheet metal strip 6 and bent (see FIG. 5), so that the grating 4 has a certain flexibility.
  • the tabs 7 can be coated with an agent, for example paraffin.
  • the metallic grating 4 does not have to be prefabricated in one piece, forming the shape of the immersion tube 3.
  • the dip tube 3 can be composed of several grate parts 9 to 12.
  • the grate parts 9 to 12 then each form a 90 ° part of the dip tube 3. They are inserted individually into an opening 13 of the cyclone 1 and then connected to one another to form the dip tube 3, either by screwing them together or they are connected via the tabs of the other sheet metal strip 6 inserted through the recesses 8 of the one sheet metal strip 6.
  • the metallic grating 4 has the advantage in any case that it leads to an even heat distribution due to its high thermal conductivity.
  • the grating 4 can have a first ring part 14 which is angled outwards relative to the cylindrical shape of the immersion tube 3 and a ring part 15 which is further angled relative to this.
  • the ring parts 14, 15 also consist of the grating 4. They are connected to one another or to the cylindrical section forming the actual immersion tube 3 by means of tabs 7 or additional screws.
  • the inner end faces 16 of the webs 17 of the grating 4 form the inner circumference of the immersion tube 3.
  • the outer End faces 18 of the webs 17 form the outer circumference of the dip tube 3.
  • insert body 19 made of a light material, for example plastic foam, is inserted into the immersion tube 3.
  • honeycomb 5 of the grating 4 with the outer end faces 18 is filled flush with a ceramic mass, which is selected according to the expected stress due to the gas flowing through the dip tube 3. It is also possible to introduce different masses, adapted to the respective zonal load, into different honeycombs.
  • the ceramic mass forms 5 cores 20 in the honeycombs. After the ceramic mass has hardened, the insert body 19 is removed. The dip tube 3 is now installed.
  • the cores 20 are individually embedded in the honeycomb 5.
  • the cores 20 are held by the webs 17 of the grating 4 in this. They protect the webs 17 against the gas flowing through the dip tube 3.
  • the honeycombs 5 of the ring parts 14, 15 are also filled with cores 20.
  • the end faces 16, 18 are exposed so that the cores 20 are separated from one another on the inner circumference and on the outer circumference of the dip tube 3.
  • honeycombs 5 of the grating 4 are closed with cores 20 of ceramic mass.
  • honeycombs 21 which are not filled with the ceramic mass. This makes it possible to influence the gas flow on the dip tube 3 in a simple manner.
  • dip tubes 22, 23 are inserted into the opening 13, which are designed in the same way as the dip tube 3.
  • a filter can be built up with this.
  • Each intermediate floor 24 consists of a grating 4, in which some honeycombs 25 are closed with cores 20 and some honeycombs 26 are open. A filter effect can also be achieved in this way.
  • the ceramic material can also be used in the form of prefabricated cores in the honeycomb.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Cyclones (AREA)
EP19910102142 1990-03-21 1991-02-15 Vortex finder and method of manufacturing same Withdrawn EP0447802A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19904009004 DE4009004A1 (de) 1990-03-21 1990-03-21 Tauchrohr und verfahren zu dessen herstellung
DE4009004 1990-03-21

Publications (2)

Publication Number Publication Date
EP0447802A2 true EP0447802A2 (fr) 1991-09-25
EP0447802A3 EP0447802A3 (en) 1991-12-18

Family

ID=6402686

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910102142 Withdrawn EP0447802A3 (en) 1990-03-21 1991-02-15 Vortex finder and method of manufacturing same

Country Status (2)

Country Link
EP (1) EP0447802A3 (fr)
DE (1) DE4009004A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1153662A1 (fr) * 2000-05-12 2001-11-14 KHD Humboldt Wedag AG Elément de montage soumis à la chaleur et à l'usure, en particulier pour tube plongeur de cyclone
EP1350571A1 (fr) * 2002-04-04 2003-10-08 KHD Humboldt Wedag AG Séparateur cyclone avec un manchon segmente
WO2012028643A1 (fr) * 2010-09-01 2012-03-08 Rockwool International A/S Procédé et appareil de fabrication de fonte minérale
DE202016102385U1 (de) 2016-05-04 2016-05-24 Outotec (Finland) Oy Zyklon und Tauchrohr zur Separation von Partikeln aus einem Gas
DE102014019472A1 (de) 2014-12-23 2016-06-23 Khd Humboldt Wedag Gmbh Tauchrohr für einen Zyklonabscheider
WO2018234539A3 (fr) * 2017-06-22 2019-02-21 Sebastian Porkert Séparateur centrifuge

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4217016C2 (de) * 1992-05-22 1994-05-26 Plibrico Gmbh Tauchrohr für Zyklone

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3327456A (en) * 1964-04-30 1967-06-27 Exxon Research Engineering Co High temperature cyclone
WO1984004471A1 (fr) * 1983-05-09 1984-11-22 Hasle Klinker & Chamott Conduite destinee a etre utilisee dans des systemes comportant des gaz chauds
GB2164132A (en) * 1984-09-04 1986-03-12 Plibrico Japan Co Ltd Anchoring refractory linings
DE8612624U1 (de) * 1986-05-09 1986-08-07 BC Berlin Consult GmbH, 1000 Berlin Einrichtung zur Entstaubung und/oder Entgiftung von Abgasen aus thermischen Prozessen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3327456A (en) * 1964-04-30 1967-06-27 Exxon Research Engineering Co High temperature cyclone
WO1984004471A1 (fr) * 1983-05-09 1984-11-22 Hasle Klinker & Chamott Conduite destinee a etre utilisee dans des systemes comportant des gaz chauds
GB2164132A (en) * 1984-09-04 1986-03-12 Plibrico Japan Co Ltd Anchoring refractory linings
DE8612624U1 (de) * 1986-05-09 1986-08-07 BC Berlin Consult GmbH, 1000 Berlin Einrichtung zur Entstaubung und/oder Entgiftung von Abgasen aus thermischen Prozessen

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ303127B6 (cs) * 2000-05-12 2012-04-18 Khd Humboldt Wedag Gmbh Žárem a opotrebením namáhaný vestavný prvek, predevším segment k sestavení segmentové ponorné trubky cyklónového odlucovace
EP1153662A1 (fr) * 2000-05-12 2001-11-14 KHD Humboldt Wedag AG Elément de montage soumis à la chaleur et à l'usure, en particulier pour tube plongeur de cyclone
EP1350571A1 (fr) * 2002-04-04 2003-10-08 KHD Humboldt Wedag AG Séparateur cyclone avec un manchon segmente
WO2012028643A1 (fr) * 2010-09-01 2012-03-08 Rockwool International A/S Procédé et appareil de fabrication de fonte minérale
CN103189321A (zh) * 2010-09-01 2013-07-03 罗克伍尔国际公司 制造矿物熔体的方法和设备
CN103189321B (zh) * 2010-09-01 2016-05-11 罗克伍尔国际公司 制造矿物熔体的方法和设备
EA023334B1 (ru) * 2010-09-01 2016-05-31 Роквул Интернэшнл А/С Способ и установка для изготовления минерального расплава
US11034606B2 (en) 2010-09-01 2021-06-15 Rockwool International A/S Method and an apparatus for making a mineral melt
DE102014019472B4 (de) * 2014-12-23 2018-01-04 Khd Humboldt Wedag Gmbh Tauchrohr für einen Zyklonabscheider
DE102014019472A1 (de) 2014-12-23 2016-06-23 Khd Humboldt Wedag Gmbh Tauchrohr für einen Zyklonabscheider
DE202016102385U1 (de) 2016-05-04 2016-05-24 Outotec (Finland) Oy Zyklon und Tauchrohr zur Separation von Partikeln aus einem Gas
WO2017191242A1 (fr) 2016-05-04 2017-11-09 Outotec (Finland) Oy Cyclone et tube plongeur pour séparer un gaz
WO2018234539A3 (fr) * 2017-06-22 2019-02-21 Sebastian Porkert Séparateur centrifuge

Also Published As

Publication number Publication date
EP0447802A3 (en) 1991-12-18
DE4009004A1 (de) 1991-09-26

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