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DE19619402C1 - Fossil fuel and waste material burning method - Google Patents

Fossil fuel and waste material burning method

Info

Publication number
DE19619402C1
DE19619402C1 DE1996119402 DE19619402A DE19619402C1 DE 19619402 C1 DE19619402 C1 DE 19619402C1 DE 1996119402 DE1996119402 DE 1996119402 DE 19619402 A DE19619402 A DE 19619402A DE 19619402 C1 DE19619402 C1 DE 19619402C1
Authority
DE
Germany
Prior art keywords
waste
hot
fossil fuel
large boiler
waste material
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.)
Revoked
Application number
DE1996119402
Other languages
German (de)
Inventor
Heinz Prof Dr Hoelter
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE4442136A external-priority patent/DE4442136C2/en
Application filed by Individual filed Critical Individual
Priority to DE1996119402 priority Critical patent/DE19619402C1/en
Priority to RU97107861A priority patent/RU2179686C2/en
Priority to PL31996297A priority patent/PL319962A1/en
Application granted granted Critical
Publication of DE19619402C1 publication Critical patent/DE19619402C1/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2202/00—Combustion
    • F23G2202/10—Combustion in two or more stages
    • F23G2202/101—Combustion in two or more stages with controlled oxidant supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2202/00—Combustion
    • F23G2202/10—Combustion in two or more stages
    • F23G2202/102—Combustion in two or more stages with supplementary heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2206/00—Waste heat recuperation
    • F23G2206/20—Waste heat recuperation using the heat in association with another installation
    • F23G2206/203—Waste heat recuperation using the heat in association with another installation with a power/heat generating installation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2215/00—Preventing emissions
    • F23J2215/30—Halogen; Compounds thereof
    • F23J2215/301—Dioxins; Furans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2201/00—Pretreatment of solid fuel
    • F23K2201/10—Pulverizing
    • F23K2201/103—Pulverizing with hot gas supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2201/00—Pretreatment of solid fuel
    • F23K2201/50—Blending
    • F23K2201/501—Blending with other fuels or combustible waste
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2900/00—Special features of, or arrangements for fuel supplies
    • F23K2900/01041—Heating by using exhaust gas heat
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/12—Heat utilisation in combustion or incineration of waste

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treating Waste Gases (AREA)

Abstract

The method involves feeding the hot flue gases from a combustion unit through the hot gas zone of a large boiler installation. For avoiding hot temperature corrosion, the HCl concentration in the large boiler installation is maintained beneath a limit value of approximately 400 mg/NM3. As in the hot gas zone of the large boiler installation temperature conditions of more than 1250 deg C apply and as at such temperature the large molecules of dioxin and furan are destroyed, it is possible to ensure that in the hot flue gases from a waste material burning plant the dioxin and furan present are destroyed.

Description

Die Erfindung bezieht sich auf ein Verfahren zur Verbrennung von fossilem Brennstoff und Abfall, bei dem fossile Brenn­ stoffe in einer Großkesselanlage eines Kraftwerks und der Abfall in einer als Satellitenfeuerung zur Großkesselanlage ausgebildeten Abfallverbrennungseinrichtung verbrannt und in der Abfallverbrennungseinrichtung anfallendes Rauchgas in die Großkesselanlage eingeleitet wird, wobei als Abfallverbren­ nungseinrichtung eine Rostfeuerung eingesetzt wird und die Großkesselanlage und die Rostfeuerung so betrieben werden, daß das die Großkesselanlage verlassende Rauchgas zu maximal 30% aus der Rostfeuerung und zu minimal 70% aus der Verbren­ nung des fossilen Brennstoffs stammt.The invention relates to a method for combustion of fossil fuel and waste where fossil fuel substances in a large boiler plant of a power plant and the Waste in a satellite boiler to the large boiler system trained incinerator burned and in the waste incinerator flue gas in the Large boiler plant is initiated, being used as waste incineration a grate firing is used and the Large boiler system and grate firing are operated that the flue gas leaving the large boiler system to a maximum 30% from grate firing and at least 70% from burning fossil fuel.

Ein derartiges Verfahren zur Verbrennung von fossilem Brenn­ stoff und Abfall ist aus dem nicht vorveröffentlichten Haupt­ patent 44 42 136 bekannt.Such a method for burning fossil fuel Substance and waste is from the unpublished main patent 44 42 136 known.

Aus der DE 36 26 106 A1 ist ein Verfahren bekannt, bei dem Abfall teilweise in einem Pyrolysereaktor und teilweise un­ mittelbar in eine Müllverbrennungsanlage eingegeben wird. In dem Pyrolysereaktor werden nur bestimmte Abfallsorten, z. B. öldurchtränktes Erdreich, behandelt. Die in dem Pyrolysereak­ tor anfallenden Gase werden entweder so wie sie anfallen in die Feuerung der Müllverbrennungsanlage eingeleitet oder zu­ nächst vorverbrannt und dann in den Rauchgasabzug der Feuerung eingeführt.From DE 36 26 106 A1 a method is known in which Waste partly in a pyrolysis reactor and partly un  is indirectly entered into a waste incineration plant. In the pyrolysis reactor, only certain types of waste, e.g. B. oil-soaked soil, treated. Those in the pyrolysis reaction gases are either as they occur in the combustion of the waste incineration plant started or closed first pre-burned and then into the flue gas outlet of the furnace introduced.

Mit dem Verfahren zur Verbrennung von fossilem Brennstoff und Abfall gemäß dem Hauptpatent 44 42 136 wird ein entspre­ chendes Verfahren zur Verfügung gestellt, mittels dem einer­ seits der technische Aufwand für die Abfallaufbereitung ver­ ringert wird und andererseits zur Vermeidung von Hochtempera­ turkorrosion die HCl-Konzentration in der Großkesselanlage unterhalb eines Grenzwerts von ca. 400 mg/NM3 gehalten wird.With the process of burning fossil fuel and Waste according to the main patent 44 42 136 is a corre sponding Appropriate procedure made available by means of one on the part of the technical effort for waste treatment is reduced and on the other hand to avoid high temperatures The HCl concentration in the large boiler system is kept below a limit of approx. 400 mg / NM3.

Der Erfindung liegt die Aufgabe zugrunde, bei dem Verfahren gemäß dem Hauptpatent 44 42 136 sicherzustellen, daß auch für den Fall, daß die Rauchgase aus der Abfallverbrennungs­ einrichtung Dioxine und Furane enthalten, das die Großkes­ selanlage verlassende Abgas derartige Schadstoffe nicht mehr enthält.The invention has for its object in the method according to the main patent 44 42 136 ensure that also in the event that the flue gases from waste incineration facility contain dioxins and furans that the Großkes Exhaust gas leaving the plant no longer contains such pollutants contains.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die heißen Rauchgase aus der Abfallverbrennungseinrichtung durch die Heißgaszone der Großkesselanlage geführt werden.This object is achieved in that the hot smoke gases from the waste incinerator the hot gas zone of the large boiler system.

Da in der Heißgaszone einer derartigen Großkesselanlage Tem­ peraturverhältnisse von oberhalb 1250 Grad C herrschen und da bei diesen Temperaturen die Großmoleküle der Dioxine und Furane zerstört werden, kann erfindungsgemäß sichergestellt werden, daß etwaig in den heißen Rauchgasen aus der Abfall­ verbrennungseinrichtung vorhandene Dioxine und Furane zer­ stört werden.Since Tem. In the hot gas zone of such a large boiler system  temperature conditions of above 1250 degrees C and because at these temperatures the large molecules of the dioxins and According to the invention, furans can be destroyed be that any in the hot flue gases from the waste combustor existing dioxins and furans zer be disturbed.

Die Wirkung des erfindungsgemäßen Verfahrens wurde durch Mes­ sungen bestätigt und hat für die Verbrennung von fossilem Brennstoff und Abfall, insbesondere Haus- und/oder Gewerbe­ müll, eine ökologische und ökonomische Machbarkeit zur Folge, die bei reinen Müllverbrennungsanlagen, in denen überwiegend Abfall als Brennstoff eingesetzt wird, aufgrund der Gefahr der Hochtemperaturkorrosion nicht gewährleistet werden kann. Da­ her würden bei solchen bekannten Verfahren weitere aufwendige Maßnahmen erforderlich, mittels denen die Durchführung der heißen Rauchgase durch eine Hochtemperaturphase sicherge­ stellt werden könnten, z. B. Nachbrennkammern, oder durch die die Dioxine und Furane abgeschieden werden könnten, z. B. Aktivkohlefilter.The effect of the method according to the invention was demonstrated by Mes solutions confirmed and has for the combustion of fossil Fuel and waste, especially domestic and / or commercial garbage, an ecological and economic feasibility result, those in pure waste incineration plants, in which predominantly Waste is used as fuel due to the risk of High temperature corrosion cannot be guaranteed. There Her would be more expensive in such known methods Measures are required by means of which the implementation of the hot fumes through a high temperature phase could be z. B. afterburning chambers, or by the the dioxins and furans could be separated, e.g. B. Activated carbon filter.

Claims (1)

Verfahren zur Verbrennung von fossilem Brennstoff und Abfall, nach Hauptpatent P 44 42 136, dadurch gekennzeichnet, daß die heißen Rauchgase aus der Abfallverbrennungseinrichtung durch die Heißgaszone der Großkesselanlage geführt werden.Process for the combustion of fossil fuel and waste, according to main patent P 44 42 136, characterized in that the hot flue gases from the waste incinerator are led through the hot gas zone of the large boiler system.
DE1996119402 1994-11-26 1996-05-14 Fossil fuel and waste material burning method Revoked DE19619402C1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE1996119402 DE19619402C1 (en) 1994-11-26 1996-05-14 Fossil fuel and waste material burning method
RU97107861A RU2179686C2 (en) 1996-05-14 1997-05-13 Method of burning fossil fuel and wastes
PL31996297A PL319962A1 (en) 1996-05-14 1997-05-14 Method of combusting fossile fuels and wastes simultaneously

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4442136A DE4442136C2 (en) 1994-11-26 1994-11-26 Process for the combustion of fossil fuel and waste
DE1996119402 DE19619402C1 (en) 1994-11-26 1996-05-14 Fossil fuel and waste material burning method

Publications (1)

Publication Number Publication Date
DE19619402C1 true DE19619402C1 (en) 1998-01-22

Family

ID=25942333

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1996119402 Revoked DE19619402C1 (en) 1994-11-26 1996-05-14 Fossil fuel and waste material burning method

Country Status (1)

Country Link
DE (1) DE19619402C1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3626106A1 (en) * 1986-08-01 1988-02-11 Babcock Anlagen Ag DEVICE FOR PYROLYSIS OF WASTE

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3626106A1 (en) * 1986-08-01 1988-02-11 Babcock Anlagen Ag DEVICE FOR PYROLYSIS OF WASTE

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