EP0446436B1 - Procédé et dispositif pour la combustion d'impuretés dans un courant de milieu - Google Patents

Procédé et dispositif pour la combustion d'impuretés dans un courant de milieu Download PDF

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Publication number
EP0446436B1
EP0446436B1 EP90123053A EP90123053A EP0446436B1 EP 0446436 B1 EP0446436 B1 EP 0446436B1 EP 90123053 A EP90123053 A EP 90123053A EP 90123053 A EP90123053 A EP 90123053A EP 0446436 B1 EP0446436 B1 EP 0446436B1
Authority
EP
European Patent Office
Prior art keywords
media flow
combustion
gas
heat
mixer pipe
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
EP90123053A
Other languages
German (de)
English (en)
Other versions
EP0446436A2 (fr
EP0446436A3 (en
Inventor
Herbert Dipl.-Ing. Obermüller
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.)
H Krantz GmbH and Co
Original Assignee
H Krantz GmbH and Co
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 H Krantz GmbH and Co filed Critical H Krantz GmbH and Co
Priority to AT90123053T priority Critical patent/ATE86028T1/de
Publication of EP0446436A2 publication Critical patent/EP0446436A2/fr
Publication of EP0446436A3 publication Critical patent/EP0446436A3/de
Application granted granted Critical
Publication of EP0446436B1 publication Critical patent/EP0446436B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • F23G7/061—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating
    • F23G7/065—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel
    • F23G7/066—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel preheating the waste gas by the heat of the combustion, e.g. recuperation type incinerator

Definitions

  • the invention relates to a method for burning contaminants contained in a media stream, the media stream with the contaminants being passed through heat exchanger tubes and passed through a combustion chamber in the heated state. From there, the media flow is discharged through a flue gas mixing tube and then through a main combustion chamber concentrically surrounding the flue gas mixing tube and finally, freed from the contaminants, via the heat exchanger tubes.
  • the invention also relates to a device for burning contaminants contained in a media stream, consisting of a cylindrical container with an inlet connector and an outlet connector for the media stream. This is first introduced through an internally cylindrical bundle of axially extending bundles of heat exchanger tubes into an annular chamber which surrounds a burner arranged on one end of the container and passes into a flue gas mixing tube arranged concentrically with the container. This in turn is connected to a main combustion chamber, from which the media flow can be fed to the outlet connection via the heat exchanger tubes.
  • the proportion of oxidizable constituents in the media stream must be limited to a certain extent so that the combustion chamber temperature can be kept at its desired level even with a minimum burner output.
  • a combustion method is known from DE-OS 36 05 415, wherein the exhaust gas and fresh air that have already been cleaned are at least partially mixed with the media stream to be supplied to the combustion device to the desired extent.
  • the cleaned exhaust gas to be mixed is either discharged after flowing around a heat exchanger or directly from the burner chamber and must be fed back into the device via a special line system. This is to prevent control mechanisms, such as flaps or valves, which work precisely in the event of pressure fluctuations and which must have a relatively good seal, are exposed to high temperatures. To carry out the known method, a relatively large expenditure on the device is therefore inevitable.
  • the invention is based on the object of proposing a method of the type described at the outset which makes it unnecessary to keep the temperature constant in the event of fluctuating amounts of oxidizable constituents in the media stream Introduce the media flow into the combustion device by admixing to lower the concentration of the oxidizable constituents.
  • the combustion chamber temperature can surprisingly nevertheless be kept very effectively at a constant level.
  • the media mixture flows around the full length of the flue gas mixing tube as it passes through the main combustion chamber, thereby influencing the combustion chamber temperature. This is also influenced by the temperature of the media flow flowing from the heat exchanger tubes to the burner. Since the heat exchanger tubes are also flushed by a media stream which is reduced as a function of the admixing volume, the temperature of the media stream flowing to the burner can also be influenced, depending on the temperature thereof, without a media stream mixture itself having to be supplied to the burner beforehand.
  • a device as described above is suitable for carrying out this method, in which, according to the invention, a controllable bypass is connected to a prechamber provided with the inlet connector, from which the heat exchanger tubes are fed, and which opens concentrically in the outlet region of the flue gas mixing tube.
  • the inflow cross section of the bypass can be controlled in a simple manner by means of a flap which is mounted within the prechamber and is therefore not exposed to high temperatures, especially since the volume flow to be mixed has a relatively low temperature which acts on the flap area.
  • the bypass is provided with a connecting piece which projects into the flue gas mixing tube, has radial openings and is sealed at the end.
  • the device consists essentially of a cylindrical container 1, which is provided on the outside with a heat and sound insulation 2.
  • the container 1 is provided in the vicinity of an end face 3 with an inlet connection 4 which penetrates radially through the container wall and is connected to the suction side of a radial blower 5 arranged concentrically on the end face.
  • An impeller 6 of the radial fan 5 is surrounded by a housing 7, which is provided with an annular gap 8. This opens into a prechamber 9, which is connected both to the inlet side of heat exchanger tubes 10, which are arranged cylindrically near the jacket of the container 1, and to the inlet side of a coxial bypass 11.
  • the heat exchanger tubes 10 extend axially over the most essential part of the length of the container 1 and open into an annular chamber 12 which adjoins an end face 13 of the container 1.
  • the annular chamber 12 encloses a burner 14 which is arranged concentrically on the end face 13 and opens into a coaxial flue gas mixing tube 15.
  • the outlet cross section of the flue gas mixing tube 15 lies at an axial distance from one that separates the antechamber 9 from the rest of the container 1 End wall 16. This is assigned to a cylinder 17 which extends over the most essential part of the length of the flue gas mixing tube 15 and defines with it a main combustion chamber 18 which is connected in the vicinity of the inlet cross section of the flue gas mixing tube 15 to an annular space 19 which connects the heat exchanger tubes 10 contains. An outlet connection 20 is connected to the annular space 19, adjacent to the inlet connection 4.
  • the bypass 11 is equipped with a flap 21, with which the media flow conveyed via the radial fan 5 into the prechamber 9 is, to a greater or lesser extent, via the bypass 11 bypassing the heat exchanger tubes 10, the annular chamber 12 and the burner 14 Leaving from the flue gas mixing tube 15 and so far already pre-treated media stream can be admixed.
  • the bypass 11 consists of a nozzle 22 which is provided with radial openings 23 and is closed on the end face.
  • the container 1 can also be arranged vertically instead of in the horizontal position shown in FIG. 1, with either the radial fan 5 on the bottom side and the burner 14 on the ceiling side (FIG. 2) or the radial fan 5 on the ceiling side and the burner 14 are arranged on the bottom (FIG. 3).
  • the inlet connector 4 and the outlet connector 20 are provided on opposite sides of the container 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)
  • Gas Burners (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Gasification And Melting Of Waste (AREA)

Claims (3)

  1. Procédé de combustion d'impuretés contenues dans un courant de milieux, lequel, alors qu'il incorpore de telles impuretés est conduit à travers les tuyaux d'échange de chaleur puis, à l'état réchauffé, à travers une chambre de combustion, ce courant de milieux étant ensuite évacué par l'intermédiaire d'un tube mélangeur à gaz enfumé puis d'une chambre de combustion principale entourant de façon concentrique ce tube mélangeur à gaz enfumé et, finalement, alors qu'il est débarassé desdites impuretés, ce courant est évacué par des tuyaux d'échange de chaleur, ce procédé étant caractérisé par le fait que l'on additionne directement au courant de milieux sortant du tube mélangeur à gaz enfumé, une part variable du courant de fluide incorporant lesdites impuretés, et/ou une part d'air frais.
  2. Dispositif pour la mise en oeuvre du procédé selon la revendication 1, comprenant un récipient (1) cylindrique pourvu d'un manchon d'entrée (4) et d'un manchon de sortie (20) pour que le courant de milieux puisse être introduit dans une chambre annulaire (12) par l'intermédiaire de faisceaux de tuyaux d'échange de chaleur (10) disposés de façon cylindrique à l'intérieur du récipient (1) et s'étendant dans le sens axial de cette chambre annulaire (12), laquelle entoure un brûleur (14) disposé sur des faces frontales intérieures du récipient (1), et débouche dans un tube mélangeur (15) à gaz enfumé disposé de façon concentrique par rapport au récipient (1) et relié à une chambre de combustion principale (18), à partir de laquelle on peut conduire le courant de milieux vers le manchon de sortie (20) par l'intermédiaire d'une chambre annulaire (19) et des tuyaux d'échange de chaleur (10), ce dispositif étant caractérisé par le fait qu'il comporte un bypass réglable (11), débouchant de façon concentrique dans la zone d'écoulement du tube mélangeur (15) à gaz enfumé et raccordé à une chambre de précombustion (9) pourvue du manchon d'entrée (4), à partir de laquelle sont alimentés les tubes d'échange de chaleur (10).
  3. Dispositif selon la revendication 2, caractérisé par le fait que le bypass (11) est pourvu d'un manchon (22) qui saille à l'intérieur du tube mélangeur (15) à gaz enfumé, est pourvu de passages radiaux (23) et est fermé sur sa face frontale.
EP90123053A 1990-03-10 1990-12-01 Procédé et dispositif pour la combustion d'impuretés dans un courant de milieu Expired - Lifetime EP0446436B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90123053T ATE86028T1 (de) 1990-03-10 1990-12-01 Verfahren und vorrichtung zum verbrennen von in einem medienstrom enthaltenen stoerstoffen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4007624 1990-03-10
DE4007624 1990-03-10

Publications (3)

Publication Number Publication Date
EP0446436A2 EP0446436A2 (fr) 1991-09-18
EP0446436A3 EP0446436A3 (en) 1992-02-26
EP0446436B1 true EP0446436B1 (fr) 1993-02-24

Family

ID=6401877

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90123053A Expired - Lifetime EP0446436B1 (fr) 1990-03-10 1990-12-01 Procédé et dispositif pour la combustion d'impuretés dans un courant de milieu

Country Status (5)

Country Link
US (1) US5161966A (fr)
EP (1) EP0446436B1 (fr)
AT (1) ATE86028T1 (fr)
CA (1) CA2037866A1 (fr)
DE (1) DE59000936D1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1248599B (it) * 1991-05-10 1995-01-19 Bono En S P A Procedimento ed apparecchiatura per la distruzione termica di reflui industriali inquinanti
US5284102A (en) * 1992-07-27 1994-02-08 Salem Industries, Inc. Fume incinerator with baffle
US5275115A (en) * 1993-03-12 1994-01-04 Reagan Houston Fume incinerator with vacuum baffle
GB9609151D0 (en) * 1996-05-01 1996-07-03 Cremation Techn Int Ltd Cremators
US7069981B2 (en) * 2002-11-08 2006-07-04 Modine Manufacturing Company Heat exchanger
DE10350765B4 (de) * 2003-10-30 2005-12-29 Eisenmann Maschinenbau Gmbh & Co. Kg Satz von thermischen Nachverbrennungsvorrichtungen
AT507098B1 (de) * 2008-12-02 2010-02-15 Knopf Privatstiftung Verfahren und vorrichtung zur kaskadischen biomasseoxidation mit thermischer rückkopplung
DE102014205200B3 (de) * 2014-03-20 2015-06-11 Kba-Metalprint Gmbh Vorrichtung zur thermischen Nachverbrennung von Abluft
FR3079020B1 (fr) * 2018-03-19 2020-08-07 Argumat Bruleur de fumees bleues pour la depollution d'une centrale d'enrobage, centrale d'enrobage et procede de depollution associes
CN110566982B (zh) * 2019-10-10 2020-11-03 江苏中矿贝莱柯环境科技有限公司 一种废气环保处理用燃烧装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2219686A1 (de) * 1972-04-21 1973-10-25 Gimborn Probat Werke Thermischer nachverbrenner
US3898040A (en) * 1972-06-29 1975-08-05 Universal Oil Prod Co Recuperative form of thermal-catalytic incinerator
DE2352204B2 (de) * 1973-10-18 1976-01-22 Katec Katalytische Lufttechnik Betz & Co, 6461 Neuenhaßlau Verbrennungseinrichtung zur verbrennung von stoerstoffen in abgasen
FR2257209A5 (fr) * 1973-11-15 1975-08-01 Air Ind
US4038032A (en) * 1975-12-15 1977-07-26 Uop Inc. Method and means for controlling the incineration of waste
US4098567A (en) * 1976-10-01 1978-07-04 Gladd Industries, Inc. Recirculating processing oven heater
DE3072145D1 (en) * 1980-09-01 1989-04-20 Zink Co John Disposal of oxides of nitrogen and heat recovery in a single self-contained structure
US4771707A (en) * 1983-05-12 1988-09-20 Haden Schweitzer Corporation Fume incineration system for paint drying oven
DE3605415A1 (de) * 1986-02-20 1987-08-27 Katec Betz Gmbh & Co Verfahren und vorrichtung zum verbrennen oxidierbarer bestandteile in einem traegergas
US4951579A (en) * 1987-11-18 1990-08-28 Radian Corporation Low NOX combustion process

Also Published As

Publication number Publication date
EP0446436A2 (fr) 1991-09-18
DE59000936D1 (de) 1993-04-01
ATE86028T1 (de) 1993-03-15
EP0446436A3 (en) 1992-02-26
US5161966A (en) 1992-11-10
CA2037866A1 (fr) 1991-09-11

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