EP0127746B1 - Verfahren zum Verbrennen von brennbarem Gut und Brennkammer zum Verbrennen der Abgase - Google Patents

Verfahren zum Verbrennen von brennbarem Gut und Brennkammer zum Verbrennen der Abgase Download PDF

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Publication number
EP0127746B1
EP0127746B1 EP84103837A EP84103837A EP0127746B1 EP 0127746 B1 EP0127746 B1 EP 0127746B1 EP 84103837 A EP84103837 A EP 84103837A EP 84103837 A EP84103837 A EP 84103837A EP 0127746 B1 EP0127746 B1 EP 0127746B1
Authority
EP
European Patent Office
Prior art keywords
combustion chamber
combustion
fresh air
flue gases
gas conduit
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
Application number
EP84103837A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0127746A1 (de
Inventor
Heinz Mallek
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.)
Forschungszentrum Juelich GmbH
Original Assignee
Forschungszentrum Juelich GmbH
Kernforschungsanlage Juelich 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 Forschungszentrum Juelich GmbH, Kernforschungsanlage Juelich GmbH filed Critical Forschungszentrum Juelich GmbH
Priority to AT84103837T priority Critical patent/ATE35174T1/de
Publication of EP0127746A1 publication Critical patent/EP0127746A1/de
Application granted granted Critical
Publication of EP0127746B1 publication Critical patent/EP0127746B1/de
Expired 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
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage

Definitions

  • the invention relates to a method for burning combustible material, in which the combustible material is pyrolyzed and burned in the absence of air, and in which the combustible exhaust gases are fed to the combustion chamber immediately downstream of the pyrolysis chamber and are burned there after air has previously been mixed in.
  • the invention further relates to a combustion chamber for the combustion of exhaust gases, which is connected directly downstream of a pyrolysis chamber, the exhaust gases formed in the pyrolysis chamber being withdrawn from the latter into the combustion chamber.
  • a method of the type described in the opening paragraph is known from DE-C-26 04 409. Also known, for example from Maschinengon, Würzburg, 81 (1975) 69, page 1293, is a process known as a high-temperature process, according to which waste is burned and in which the exhaust gases are burned in a separate combustion chamber.
  • the exhaust gases When the exhaust gases are burnt, their complete burnout is desirable because of the generation of environmentally friendly residual gases.
  • the aim is to completely burn out the exhaust gases because of the improvement in the energy balance.
  • the object on which the invention is based is achieved according to the invention in that the exhaust gases within the combustion chamber are supplied to a gas guide line which is arranged in the combustion chamber and is open to the interior of the combustion chamber and is conducted separately to the outlet or the outputs of the combustion chamber, the in fresh air is added to the exhaust gas flowing in the gas duct.
  • the separate guiding of the exhaust gases makes it possible - in conjunction with the slightly êtba - ren supply of fresh air to the exhaust gases separately - to set the required for the complete combustion temperatures within a limited area.
  • the remaining area of the combustion chamber can be kept at a lower temperature level, as a result of which the temperature load on the combustion chamber walls can be kept lower and further disadvantages, such as the melting of the ash, can be avoided. This is particularly the case with an expedient embodiment of the method according to the invention, in which the exhaust gases are led separately from the center of the combustion chamber or through the center of the combustion chamber.
  • the separate guidance of the exhaust gases also enables particularly favorable starting conditions for the combustion chamber. If you ignite the exhaust gases in the delimited area of the separate guide, this area can very quickly be brought to the temperature required for the formation of clean residual gases, about 800 ° C.
  • a particularly advantageous variant of the method according to the invention consists in that the exhaust gases supplied to the combustion chamber are supplied with fresh air in a sub-stoichiometric ratio and additionally to the separately guided exhaust gases with fresh air in an at least stoichiometric ratio. This makes it possible - by appropriate dimensioning of the fresh air quantities - to optimally set the desired high temperatures in the delimited area of the separately guided exhaust gases and lower temperatures in the remaining area of the combustion chamber.
  • a combustion chamber of the type described in the introduction is suitable for carrying out the method according to the invention, in which at least one gas guide line which penetrates the combustion chamber or extends from the interior of the combustion chamber is provided with one or more openings to the combustion chamber, which has the gas outlet at one end Combustion chamber forms or is connected to it and which can be connected to a fresh air line.
  • the gas supply line is expediently made of refractory material such as ceramic or refractory steel.
  • An expedient embodiment of the combustion chamber is that the gas guide line penetrates the center of the combustion chamber or extends from the center of the combustion chamber.
  • a simple embodiment of the combustion chamber according to the invention provides a gas conduit from a tube with side openings.
  • the lateral openings can face both the upper, the lateral part of the combustion chamber or the ash discharge det be.
  • the side openings are preferably turned towards the scraper discharge in order to prevent fly ash or other dust particles from entering the gas conduit as far as possible.
  • the gas guide line penetrates the interior of the combustion chamber and that the fresh air line can be connected to the end of the gas guide line which is at the end of the combustion chamber.
  • the fresh air supply can also take place, for example, through a fresh air line protruding into the gas guide line.
  • the choice of the feed point for the fresh air gives the possibility of influencing the combustion process in the combustion chamber or in the gas conduit not only by controlling the fresh air quantities but also by selecting the location of the feed of the fresh air.
  • the feed point for example, the length of time that the exhaust gases remain in the part of the gas conduit located after the feed point can be taken into account.
  • the separate routing of the exhaust gases in the combustion chamber results in a bundled flame jet that is directed beyond the area of the combustion chamber while at the same time burning the gas intensively.
  • the combustion chamber according to the invention can then be used in a particularly advantageous manner in a combustion system for burning combustible material, in which a device for utilizing the sensible heat is connected downstream of the combustion chamber.
  • a boiler of a heating system can be connected downstream of the combustion chamber, the flame jet coming from the gas supply line of the combustion chamber being directed at the heat exchanger of the boiler.
  • the combustion chamber 1 is connected downstream of a pyrolysis chamber 2. Both chambers are separated from one another by the lock element 3.
  • the gas guide line 4 is guided through the center of the combustion chamber 1.
  • a gas burner 5 is arranged, which serves to ignite the combustion process in the combustion chamber.
  • the fresh air line 6 is connected to the gas guide line 4.
  • combustible material is filled into the pyrolysis chamber 2 through the upper lock 7.
  • Gas burners 8 are used at the start of the pyrolysis process.
  • the combustible exhaust gases formed in the pyrolysis chamber are drawn down into the combustion chamber 1. They reach the gas guide line 4 through openings 9.
  • the openings 9 are arranged on the side of the gas guide line facing the ash discharge 10, that is to say downwards.
  • the fresh air introduced into the combustion chamber 1 via the lock 3 leads to the partial combustion of the combustible exhaust gases at a temperature in the part of the combustion chamber 1 lying outside the gas conduit 4, likewise of not more than 800 ° C.
  • Fresh air is fed into the gas duct 4 in at least a stoichiometric ratio to the exhaust gases via the fresh air line 6. This results in complete combustion of the exhaust gases which have entered the gas guide line 4, a temperature of approximately 1100 ° C. being reached.
  • the fresh air line 6 projects in the form of an additional line section 6 ′ into the gas guide line 4 beyond the center of the combustion chamber.
  • the feed point for the fresh air is thus in the vicinity of the outlet of the combustion chamber, as a result of which the area of complete combustion of the exhaust gases is also in the vicinity of the outlet of the combustion chamber and the hot flame formed thereby projects beyond the area of the combustion chamber.
  • the gas is routed line 4 from the center of the combustion chamber 1.
  • the gas guide line is designed as a tube, the end of which is located in the combustion chamber is open to the combustion chamber. Fresh air is fed in by suction via the line piece 6 ′ projecting into the pipe 4, which is open to the outside after the gas burner 5 has been folded down.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)
EP84103837A 1983-04-09 1984-04-06 Verfahren zum Verbrennen von brennbarem Gut und Brennkammer zum Verbrennen der Abgase Expired EP0127746B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84103837T ATE35174T1 (de) 1983-04-09 1984-04-06 Verfahren zum verbrennen von brennbarem gut und brennkammer zum verbrennen der abgase.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3312863A DE3312863C2 (de) 1983-04-09 1983-04-09 Brennkammer zum Verbrennen von Abgasen
DE3312863 1983-04-09

Publications (2)

Publication Number Publication Date
EP0127746A1 EP0127746A1 (de) 1984-12-12
EP0127746B1 true EP0127746B1 (de) 1988-06-15

Family

ID=6195902

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84103837A Expired EP0127746B1 (de) 1983-04-09 1984-04-06 Verfahren zum Verbrennen von brennbarem Gut und Brennkammer zum Verbrennen der Abgase

Country Status (7)

Country Link
US (1) US4561363A (xx)
EP (1) EP0127746B1 (xx)
JP (1) JPS59217411A (xx)
AT (1) ATE35174T1 (xx)
DE (1) DE3312863C2 (xx)
MW (1) MW884A1 (xx)
ZA (1) ZA842563B (xx)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3409292C2 (de) * 1984-03-14 1986-07-31 Manfred 4440 Rheine Köpke Feststoffvergasungsheizkessel
JPS61141543U (xx) * 1985-02-15 1986-09-01
DE3611429A1 (de) * 1985-02-15 1986-11-06 SKF Steel Engineering AB, Hofors Verfahren zur abfallzersetzung
AT388925B (de) * 1987-01-29 1989-09-25 Voest Alpine Ind Anlagen Verfahren zum vergasen von brennstoffen mit sauerstoff in einem schachtfoermigen ofen
DE3705406A1 (de) * 1987-02-20 1988-09-08 Manfred Koepke Feststoffvergasungsheizkessel
US4738205A (en) * 1987-06-03 1988-04-19 Ablestien Industries, Inc. Heating stove which includes a pyrolysis gasifier
US4799437A (en) * 1987-06-03 1989-01-24 Ablestien Industries, Inc. Heating stove which includes a pyrolysis gasifier
US4922839A (en) * 1988-11-28 1990-05-08 Boucher Robert J Fuel reactor
DE3900977A1 (de) * 1989-01-14 1990-07-19 Forschungszentrum Juelich Gmbh Verfahren zum verbrennen von brennstoffen sowie verbrennungsanlage zum durchfuehren dieses verfahrens
DE3906430A1 (de) * 1989-03-01 1990-09-06 Bookmann Gmbh Verfahren und vorrichtung zur katalytischen und/oder thermischen nachverbrennung von prozess-abluft
DE3924626A1 (de) * 1989-07-26 1991-01-31 Forschungszentrum Juelich Gmbh Vergasungsreaktor fuer brennbare feststoffe
US5101739A (en) * 1991-01-04 1992-04-07 Utah Environmental Energy, Inc. Tire gassification and combustion system
SE500521C2 (sv) * 1991-12-09 1994-07-11 Bjoern Heed Förbränningsanordning innefattande en stationär bädd med värmeackumulerande och värmeväxlande egenskaper
DE4206758A1 (de) * 1992-03-04 1993-09-09 Bernhard Bode Vergasungsreaktor zur erzeugung von brenngas aus vergasbaren organischen feststoffen in einem schacht mit feststoffschuettung und abwaerts gerichteter brenngasstroemung
US5452670A (en) * 1993-10-15 1995-09-26 Towne; Gary A. Waste recycling system
DE4344569C2 (de) * 1993-12-24 1996-07-04 Ver Verwertung Und Entsorgung Verfahren und Vorrichtung zur Brenngasherstellung
FR2714857B1 (fr) * 1994-01-10 1996-03-29 Afe Metal Sa Dispositif pour le traitement et le recyclage des sables de fonderie, de produits granuleux et pulvérulents.
US5588381A (en) * 1995-03-07 1996-12-31 Leslie Technologies, Inc. Method and system for burning waste materials
US5655463A (en) * 1995-06-19 1997-08-12 Douglas Nagel Apparatus and method for burning waste material
WO1997001617A1 (de) * 1995-06-27 1997-01-16 Ver Verwertung Und Entsorgung Von Reststoffen Gmbh Verfahren und vorrichtung zur brenngasherstellung
WO1997021959A1 (en) * 1995-12-08 1997-06-19 Megtec Systems Ab A method and a device for recovery of energy from media containing combustible substances even at low concentration
ATE223017T1 (de) * 1995-12-08 2002-09-15 Megtec Systems Ab Verfahren und vorrichtung zur energierückgewinnung aus brennbare bestandteile enthaltenden medien auch bei niedrigen konzentrationen
DE19808819A1 (de) * 1998-03-03 1999-09-09 Utec Luftreinigung & Waermerue Verbrennungsofen für Abgase
US6941879B2 (en) * 2000-12-08 2005-09-13 Foretop Corporation Process and gas generator for generating fuel gas
US6497187B2 (en) 2001-03-16 2002-12-24 Gas Technology Institute Advanced NOX reduction for boilers
CN100543116C (zh) * 2005-08-19 2009-09-23 中国科学院过程工程研究所 制备无焦油产品气的贫氧流化燃烧下吸式气化方法及装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0064589A1 (en) * 1981-03-27 1982-11-17 John N. Basic Sr. Incinerator with two reburn stages and, optionally, heat recovery

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US2354963A (en) * 1939-05-17 1944-08-01 Ohlsson Olof Axel Combustion device
US2592730A (en) * 1946-04-05 1952-04-15 Robert C Perkins Gas-producing furnace and burner therefor
US3403645A (en) * 1967-01-31 1968-10-01 Waste Comb Corp Incinerator
JPS4835675A (xx) * 1971-08-17 1973-05-25
US3771468A (en) * 1972-01-20 1973-11-13 P Kelly Waste disposal
DK130367B (da) * 1972-12-04 1975-02-10 J Scheibel Fremgangsmåde til forbrænding af affald og apparat til gennemførelse af fremgangsmåden.
DE2604409C3 (de) * 1976-02-05 1979-12-06 Kernforschungsanlage Juelich Gmbh, 5170 Juelich Verfahren und Verbrennungsofen zur Verbrennung von Abfällen
US4147115A (en) * 1977-09-14 1979-04-03 Leppert Alfred M Incinerator with gas generation
US4213404A (en) * 1978-11-09 1980-07-22 Energy Alternatives, Inc. Solid refuse furnace
US4231302A (en) * 1979-05-14 1980-11-04 Albert Neuhaus-Schwermann Apparatus and process for burning of fuels of relatively young geological age and of any resulting gases
GB2070212B (en) * 1979-12-01 1983-07-06 Incinerator Co Combustion apparatus and process
DE3043716A1 (de) * 1980-11-20 1982-10-07 Andersen, Normann Jess, 2000 Hamburg Verbrennungsofen fuer abfaelle

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0064589A1 (en) * 1981-03-27 1982-11-17 John N. Basic Sr. Incinerator with two reburn stages and, optionally, heat recovery

Also Published As

Publication number Publication date
ZA842563B (en) 1985-12-24
US4561363A (en) 1985-12-31
JPS59217411A (ja) 1984-12-07
DE3312863C2 (de) 1986-12-04
MW884A1 (en) 1985-12-11
ATE35174T1 (de) 1988-07-15
EP0127746A1 (de) 1984-12-12
DE3312863A1 (de) 1984-10-18

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