DE4445745A1 - Residue vitrification plant with regenerative heat recovery system - Google Patents

Residue vitrification plant with regenerative heat recovery system

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Publication number
DE4445745A1
DE4445745A1 DE4445745A DE4445745A DE4445745A1 DE 4445745 A1 DE4445745 A1 DE 4445745A1 DE 4445745 A DE4445745 A DE 4445745A DE 4445745 A DE4445745 A DE 4445745A DE 4445745 A1 DE4445745 A1 DE 4445745A1
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DE
Germany
Prior art keywords
regenerators
exhaust gas
combustion air
gas
recuperator
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.)
Granted
Application number
DE4445745A
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German (de)
Other versions
DE4445745C2 (en
Inventor
Guenter Prof Dr Ing Woelk
Gerd Prof Dr Ing Walter
Ulrich Dr Ing Grabenhorst
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JUSTUS GOETZ VOLKER DR ING
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JUSTUS GOETZ VOLKER DR ING
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Priority to DE4445745A priority Critical patent/DE4445745C2/en
Publication of DE4445745A1 publication Critical patent/DE4445745A1/en
Application granted granted Critical
Publication of DE4445745C2 publication Critical patent/DE4445745C2/en
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09C—RECLAMATION OF CONTAMINATED SOIL
    • B09C1/00—Reclamation of contaminated soil
    • B09C1/06—Reclamation of contaminated soil thermally
    • B09C1/067—Reclamation of contaminated soil thermally by vitrification
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
    • B09B3/20—Agglomeration, binding or encapsulation of solid waste
    • B09B3/25—Agglomeration, binding or encapsulation of solid waste using mineral binders or matrix
    • B09B3/29—Agglomeration, binding or encapsulation of solid waste using mineral binders or matrix involving a melting or softening step
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B3/00—Charging the melting furnaces
    • C03B3/02—Charging the melting furnaces combined with preheating, premelting or pretreating the glass-making ingredients, pellets or cullet
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/005—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture of glass-forming waste materials
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/14—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in revolving cylindrical furnaces
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/235—Heating the glass
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/235—Heating the glass
    • C03B5/237—Regenerators or recuperators specially adapted for glass-melting furnaces
    • 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
    • F23G5/006—General arrangement of incineration plant, e.g. flow sheets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00—Pretreatment
    • F23G2201/10—Drying by heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00—Pretreatment
    • F23G2201/60—Separating
    • F23G2201/602—Separating different sizes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00—Pretreatment
    • F23G2201/60—Separating
    • F23G2201/603—Separating recyclable material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00—Pretreatment
    • F23G2201/70—Blending
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00—Pretreatment
    • F23G2201/80—Shredding
    • 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
    • F23G2202/00—Combustion
    • F23G2202/10—Combustion in two or more stages
    • F23G2202/103—Combustion in two or more stages in separate chambers
    • 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
    • F23G2202/104—Combustion in two or more stages with ash melting stage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2203/00—Furnace arrangements
    • F23G2203/20—Rotary drum furnace
    • 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
    • F23G2206/201—Waste heat recuperation using the heat in association with another installation with an industrial furnace
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/12—Sludge, slurries or mixtures of liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/24—Contaminated soil; foundry sand
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/30—Solid combustion residues, e.g. bottom or flyash
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2900/00—Special features of, or arrangements for incinerators
    • F23G2900/50206—Pelletising waste before combustion
    • 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
    • F23J2215/60—Heavy metals; Compounds thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2217/00—Intercepting solids
    • F23J2217/10—Intercepting solids by filters
    • F23J2217/101—Baghouse type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2219/00—Treatment devices
    • F23J2219/10—Catalytic reduction devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2219/00—Treatment devices
    • F23J2219/30—Sorption devices using carbon, e.g. coke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2219/00—Treatment devices
    • F23J2219/40—Sorption with wet devices, e.g. scrubbers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2219/00—Treatment devices
    • F23J2219/60—Sorption with dry devices, e.g. beds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2219/00—Treatment devices
    • F23J2219/70—Condensing contaminants with coolers
    • 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
    • Y02E20/30—Technologies for a more efficient combustion or heat usage
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/20—Waste processing or separation

Abstract

The parent patent (P4435166.6) describes a plant for vitrifying residues (e.g. clarification sludge, contaminated muds or soils, slags and filter dusts, esp. from waste incineration plants), consisting of a residue prepn. unit, a blending unit for mixing and dosing the prepd. residues and glass-former, a glass melting unit with a system for regenerative heat recovery from the flue gases, and a cleaning unit for the flue gases. A device (esp. a rotary hearth furnace), heated by fossil and/or other fuels and supplied with preheated combustion air, is provided between the blending unit and the glass melting unit for drying, degassing, oxidising and sintering the dosed batch. First regenerators are provided for preheating the combustion air in counter-current to off-gas from the glass melting unit at an off-gas temp. maintained such that condensate formation is avoided. The regenerators are followed by a recuperator, through which the off-gas flows and in which the condensate is sepd. and supplied to the prepn. unit, the combustion air being preheated in the recuperator for the rotary hearth furnace. The novelty is that (a) the furnace off-gas is supplied to a fossil fuel-fired off-gas post-combustion stage having an outlet connected to second regenerators; (b) the off-gas from these regenerators is combined with off-gas from the first regenerators and fed into the recuperator; and (c) the combustion air, preheated in the recuperator, for the post-combustion stage is fed in counter-current to the off-gas through the second regenerators, in the same manner as the combustion air for the rotary hearth furnace, at an off-gas temp. maintained to avoid condensate formation.

Description

Die Erfindung betrifft eine Anlage zur Verglasung von Reststoffen, wie Klärschlämmen, kontaminierten Schlämmen oder Böden, Schlacken, Filterstäuben, insbesondere aus Müllverbrennungsanlagen und dergleichen, bestehend aus einer Aufbereitungsanlage für die Reststoffe, einer Gemengeanlage zur Mischung und Dosierung der aufbereiteten Reststoffe und Glasbildner, einer mit Feuerung betriebenen Glasschmelzanlage zum Aufschmelzen des Gemenges, die mit einer Einrichtung zur regenerativen Wärmerückgewinnung aus den Rauchgasen der Feuerung gekoppelt ist, wobei die Rauchgase über eine Reinigungsanlage abgegeben werden, als Zusatz zu P 44 35 166.6, wobei zwischen die Gemengeanlage zum Mischen und Dosieren der Reststoffe und Glasbildner und die Glasschmelzanlage eine Vorrichtung zur Trocknung, Entgasung, Oxidation und Sinterung des dosierten Gemenges eingeschaltet ist, insbesondere ein Drehherdofen, der mit fossilen und/oder anderen Brennstoffen beheizt ist und in den vorgewärmte Verbrennungsluft einführbar ist, erste Regeneratoren zur Erhitzung der Verbrennungsluft für die Glasschmelz­ anlage im Gegenstrom zur zugeführten Verbrennungsluft vom Abgas der Glasschmelzanlage durchströmt sind, wobei die Abgastemperatur beim Durchsatz der Regeneratoren auf einem solchen Niveau gehalten ist, daß eine Kondensatbildung vermieden ist, und den Regeneratoren ein Rekuperator nachgeschaltet ist, der vom Abgas durchströmt ist und in dem dessen Kondensate aus der Dampfphase abgeschieden und der Aufbereitungsanlage zugeführt werden, wobei im Rekuperator die Verbrennungsluft für den Drehherdofen oder dergleichen vorgewärmt wird.The invention relates to a system for glazing Residues such as sewage sludge, contaminated sludge or soils, slags, filter dusts, in particular Incineration plants and the like, consisting of a processing plant for the residues, one Batch system for mixing and dosing the processed Residues and glass formers, one with firing Glass melting plant for melting the batch, the with a device for regenerative heat recovery is coupled from the flue gases of the furnace, whereby the flue gases are released via a cleaning system, as an addition to P 44 35 166.6, whereby between the Batch system for mixing and dosing the residues and glass former and the glass melting system a device for drying, degassing, oxidation and sintering of the metered batch is switched on, in particular a  Rotary hearth furnace with fossil and / or other The fuel is heated and preheated Combustion air can be introduced, first regenerators for heating the combustion air for the glass melt system in counterflow to the supplied combustion air are flowed through by the exhaust gas from the glass melting system, wherein the exhaust gas temperature during the throughput of the regenerators is kept at such a level that a Condensation is avoided, and the regenerators a recuperator is connected downstream from the exhaust gas is flowed through and in whose condensates from the Vapor phase separated and the processing plant are supplied, the in the recuperator Combustion air for the rotary hearth furnace or the like is preheated.

Eine derartige Anlage ist mit ihren Vorteilen in der Hauptanmeldung beschrieben. Gemäß Vorschlag der Hauptanmeldung wird das gesamte Abgas der Anlage durch die Regeneratoren geleitet. Infolge der den Drehherdofen verlassenden und durch den Glasschmelzofen geführten Abgasmenge werden die Regeneratoren zu heiß, da die im Gegenstrom aufzuheizende Verbrennungsluftmenge für den Glasschmelzofen im Volumen erheblich geringer ist.Such a system is with its advantages in the Main application described. According to the proposal of the The main application is the entire exhaust gas from the system headed the regenerators. As a result of the rotary hearth furnace  leaving and guided through the glass melting furnace Exhaust gas volume, the regenerators are too hot, because the in Amount of combustion air to be heated for the counterflow Glass melting furnace is significantly lower in volume.

Um eine Überhitzung der Regeneratoren zu vermeiden wird demzufolge vorgeschlagen, daß die Abgase des Drehherdofens oder dergleichen einer fossil beheizten Abgasnachverbrennungsstufe zugeführt sind, deren Ausgang an zweite Regeneratoren angeschlossen ist, daß das aus diesem austretende Abgas mit dem Abgas vereinigt wird, welches die ersten Regeneratoren verläßt, und der vereinigte Abgasstrom in den Rekuperator eingeführt wird, daß die im Rekuperator vorgewärmte Verbrennungsluft der Abgasnachverbrennungsstufe im Gegenstrom zum Abgas durch die zweiten Regeneratoren geführt ist, ebenso wie die Verbrennungsluft für den Drehherdofen oder dergleichen, wobei die Abgastemperatur auch beim Durchsatz der zweiten Regeneratoren auf einem die Kondensatbildung vermeidenden Niveau gehalten ist. To avoid overheating the regenerators therefore proposed that the exhaust gases from the rotary hearth or the like of a fossil-heated Exhaust afterburning stage are supplied, the output is connected to second regenerators, that from this exiting exhaust gas is combined with the exhaust gas, which leaves the first regenerators, and the combined exhaust gas flow is introduced into the recuperator, that the preheated combustion air in the recuperator Exhaust gas post-combustion stage in counterflow to the exhaust gas the second regenerators is run, as is the Combustion air for the rotary hearth furnace or the like, the exhaust gas temperature even with the throughput of the second Regenerators on one to avoid the formation of condensate Level is maintained.  

Bei dieser Anlagekonzeption wird das den Drehherdofen verlassende Abgas in einer mit fossilen oder anderen Brennstoffen beheizten Abgasnachverbrennung nachverbrannt, wobei die Abgase, die die Abgasnachverbrennung verlassen, durch zweite Regeneratoren geleitet und danach mit dem Abgasstrom vereinigt, der die ersten Regeneratoren verläßt. Der gesamte Abgasstrom wird dann zum Rekuperator geführt und weiterbehandelt. Die Verbrennungsluft für den Drehherdofen wird durch den Rekuperator geleitet und dort vorgeheizt und anschließend in den zweiten Generatoren im Gegenstrom zum Abgas geführt und auf das erforderliche hohe Temperaturniveau gebracht und anschließend teilweise in die Abgasnachverbrennung und teilweise in den Drehherdofen eingeleitet.With this system design, it becomes the rotary hearth furnace leaving exhaust gas in one with fossil or other Fuels heated exhaust gas afterburning, the exhaust gases leaving the exhaust gas afterburner passed through second regenerators and then with the Exhaust gas stream combines the first regenerators leaves. The entire exhaust gas flow then becomes a recuperator managed and further processed. The combustion air for the rotary hearth furnace is passed through the recuperator and preheated there and then in the second Generators in counterflow to the exhaust gas and on the brought required high temperature level and then partly in the exhaust gas afterburning and partially introduced into the rotary hearth furnace.

Durch die Anlagekonstruktion wird eine Überhitzung der ersten Regeneratoren vermieden und dennoch eine weitgehende Nutzung des Wärmeinhaltes der Abgase der Nachverbrennung realisiert. Overheating of the system is prevented first regenerators avoided and still one extensive use of the heat content of the exhaust gases Afterburning realized.  

Nachstehend ist anhand eines Ablaufschemas der Verfahrens­ ablauf bei der erfindungsgemäßen Anlage verdeutlicht.Below is a flow chart of the process process clarified in the system according to the invention.

Die einzige Zeichnungsfigur zeigt ein Konzept einer Einschmelz- und Remineralisierungsanlage (Anlage zur Verglasung von Reststoffen).The only drawing figure shows a concept of one Melting and remineralization plant (plant for Glazing of residues).

Im Unterschied zur Hauptanmeldung ist bei diesem Anlage­ konzept das Abgas des Drehherdofens über eine Abgas­ nachverbrennung nicht in dem Glasschmelzofen eingeführt, sondern das Abgas wird in einer Abgasnachverbrennung verbrannt und dann zweiten Regeneratoren zugeführt. Nach Verlassen der zweiten Regeneratoren wird diese Abgasmenge mit der Abgasmenge vereinigt, die die ersten Regeneratoren verläßt, die vom Abgas des Glasschmelzofens durchströmt sind. Die vereinigte Abgasmenge wird dem Rekuperator zugeführt. Das zur Abgasnachverbrennung notwendige Heizmedium wird der Abgasnachverbrennung unmittelbar zugeführt. Die erforderliche Verbrennungsluft wird über den Rekuperator vorgewärmt und dann durch die zweiten Regeneratoren im Gegenstrom zum Abgas geführt und noch weiter erhitzt, um dann teilweise in die Abgas­ nachverbrennung und teilweise in den Drehherdofen eingeführt zu werden.In contrast to the main application for this system concept the exhaust of the rotary hearth furnace via an exhaust afterburning not introduced in the glass melting furnace, but the exhaust gas is in an exhaust gas afterburning burned and then fed to second regenerators. To This amount of exhaust gas leaves the second regenerators combined with the amount of exhaust gas that the first regenerators leaves, which flows through the flue gas from the glass melting furnace are. The combined amount of exhaust gas is the recuperator fed. The necessary for exhaust gas afterburning The heating medium becomes the exhaust gas afterburning immediately fed. The required combustion air is over preheated the recuperator and then through  the second regenerators in counterflow to the exhaust gas and heated further, then partially in the exhaust afterburning and partly in the rotary hearth furnace to be introduced.

Die Erfindung ist nicht auf das Ausführungsbeispiel beschränkt, sondern im Rahmen der Offenbarung vielfach variabel.The invention is not based on the embodiment limited, but often within the scope of the disclosure variable.

Alle neuen, in der Beschreibung und/oder Zeichnung offenbarten Einzel- und Kombinationsmerkmale werden als erfindungswesentlich angesehen.All new, in the description and / or drawing disclosed individual and combination features are considered viewed essential to the invention.

Claims (3)

1. Anlage zur Verglasung von Reststoffen, wie Klärschlamm, kontaminierten Schlämmen oder Böden, Schlacken, Filter­ stäuben, insbesondere aus Müllverbrennungsanlagen und dergleichen, bestehend aus einer Aufbereitungs­ anlage für die Reststoffe, einer Gemengeanlage zur Mischung und Dosierung der aufbereiteten Reststoffe und Glasbildner, einer mit Feuerung betriebenen Glas­ schmelzanlage zum Aufschmelzen des Gemenges, die mit einer Einrichtung zur regenerativen Wärmerückgewinnung aus den Rauchgasen der Feuerung gekoppelt ist, wobei die Rauchgase über eine Reinigungsanlage abgegeben werden, als Zusatz zu P 44 35 166.6, wobei zwischen die Gemengeanlage zum Mischen und Dosieren der Rest­ stoffe und Glasbildner und die Glasschmelzanlage eine Vorrichtung zur Trocknung, Entgasung, Oxidation und Sinterung des dosierten Gemenges eingeschaltet ist, insbesondere ein Drehherdofen, der mit fossilen und/oder anderen Brennstoffen beheizt ist und in den vorgewärmte Verbrennungsluft einführbar ist, erste Regeneratoren zur Erhitzung der Verbrennungsluft für die Glasschmelzanlage im Gegenstrom zur zugeführten Verbrennungsluft von Abgas der Glasschmelzanlage durchströmt sind, wobei die Abgastemperatur beim Durch­ satz der Regeneratoren auf einem solchen Niveau gehalten ist, daß eine Kondensatbildung vermieden ist, und den Regeneratoren ein Rekuperator nachge­ schaltet ist, der vom Abgas durchströmt ist und in dem dessen Kondensate aus der Dampfphase abgeschieden und der Aufbereitungsanlage zugeführt werden, wobei im Rekuperator die Verbrennungsluft für den Drehherd­ ofen oder dergleichen vorgewärmt wird, dadurch gekenn­ zeichnet, daß die Abgase des Drehherdofens oder der­ gleichen einer fossil beheizten Abgasnachverbrennungs­ stufe zugeführt sind, deren Ausgang an zweite Regeneratoren angeschlossen ist, daß das aus diesen austretende Abgas mit dem Abgas vereinigt wird, welches die ersten Regeneratoren verläßt, und der vereinigte Abgasstrom in den Rekuperator eingeführt wird, daß die im Rekuperator vorgewärmte Verbrennungsluft der Abgasnachverbrennungsstufe im Gegenstrom zum Abgas durch die zweiten Regeneratoren geführt ist, ebenso wie die Verbrennungsluft für den Drehherdofen oder dergleichen, wobei die Abgastemperatur auch beim Durchsatz der zweiten Regeneratoren auf einem die Kondensatbildung vermeidenden Niveau gehalten ist.1. Plant for the glazing of residues, such as sewage sludge, contaminated sludge or soil, slags, filters dust, especially from waste incineration plants and the like, consisting of a processing plant for the residues, a batch plant for mixing and metering the processed residues and glass formers, one with Furnace operated glass melting system for melting the batch, which is coupled with a device for regenerative heat recovery from the flue gases of the furnace, the flue gases being emitted via a cleaning system, as an addition to P 44 35 166.6, being between the batch system for mixing and metering the Residual materials and glass formers and the glass melting system, a device for drying, degassing, oxidation and sintering of the metered batch is switched on, in particular a rotary hearth furnace which is heated with fossil and / or other fuels and can be introduced into the preheated combustion air , First regenerators for heating the combustion air for the glass melting system in countercurrent to the combustion air supplied by exhaust gas from the glass melting system, the exhaust gas temperature is maintained at such a level that the condensate formation is avoided, and the regenerators are followed by a recuperator when the regenerators are set through is flowed through by the exhaust gas and in whose condensates are separated from the vapor phase and fed to the treatment plant, the combustion air for the rotary hearth furnace or the like being preheated in the recuperator, characterized in that the exhaust gases from the rotary hearth furnace or the like are fossil heated exhaust gas post-combustion stage are supplied, the output of which is connected to second regenerators, that the exhaust gas emerging from these is combined with the exhaust gas which leaves the first regenerators, and the combined exhaust gas stream is introduced into the recuperator d, that the preheated combustion air of the exhaust gas post-combustion stage in counter-current to the exhaust gas is passed through the second regenerators, as well as the combustion air for the rotary hearth furnace or the like, the exhaust gas temperature being kept at a level avoiding the formation of condensate even during the throughput of the second regenerators. 2. Anlage nach Anspruch 1, dadurch gekennzeichnet, daß die Abgastemperatur der zweiten Regeneratorstufe auf mindestens 850°C gehalten ist.2. Plant according to claim 1, characterized in that the exhaust gas temperature of the second regenerator stage is kept at least 850 ° C. 3. Anlage nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß ein Teil der im Rekuperator vorgewärmten Verbrennungsluft im Gegenstrom durch die ersten Regeneratoren der Glasschmelzanlage zuführbar ist.3. Plant according to claim 1 or 2, characterized in that that part of the preheated in the recuperator Combustion air in counterflow through the first Regenerators of the glass melting system can be fed.
DE4445745A 1994-09-30 1994-12-21 Plant for glazing residues Expired - Fee Related DE4445745C2 (en)

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DE4445745A DE4445745C2 (en) 1994-09-30 1994-12-21 Plant for glazing residues

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DE4435166A DE4435166C1 (en) 1994-09-30 1994-09-30 Assembly to vitrify contaminated waste
DE4445745A DE4445745C2 (en) 1994-09-30 1994-12-21 Plant for glazing residues

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EP1946858A2 (en) * 2005-09-12 2008-07-23 MARTINEZ MANENT, Salvador Method of producing glass articles
US8151482B2 (en) * 2008-11-25 2012-04-10 William H Moss Two-stage static dryer for converting organic waste to solid fuel

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4435166C1 (en) * 1994-09-30 1996-05-23 Justus Goetz Volker Dr Ing Assembly to vitrify contaminated waste
DE19625964C1 (en) * 1996-06-28 1997-11-27 Sorg Gmbh & Co Kg Recycled glass fragment feed to a melting furnace
DE19716214C2 (en) * 1997-04-18 1999-08-05 Claus Hans Dieter Dr Use of a product obtained from mercury-containing oil sludge from the oil production for the production of ceramic products
AU8008100A (en) * 1999-10-19 2001-04-30 Minergy Corp. Processing of contaminated river sediment in a glass melting furnace
DE10346892B4 (en) * 2002-12-23 2007-03-01 Bernd Rüdiger Kipper Process and apparatus for the treatment of solid and liquid waste mixtures containing organic constituents
CN104315844A (en) * 2014-11-15 2015-01-28 郭金良 Process for producing brick by waste heat drying sludge from sintered brick production line tunnel kiln
CN109692869A (en) * 2019-02-22 2019-04-30 杰瑞环保科技有限公司 The rotary indirect thermal desorption device of one kind and system

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Publication number Priority date Publication date Assignee Title
DE3833457A1 (en) * 1988-10-01 1990-04-05 Gutehoffnungshuette Man METHOD AND DEVICE FOR THE THERMAL TREATMENT OF WASTE MATERIALS
DE4226642A1 (en) * 1992-08-12 1994-02-17 Sorg Gmbh & Co Kg Regenerative glass melting furnace
DE4435166C1 (en) * 1994-09-30 1996-05-23 Justus Goetz Volker Dr Ing Assembly to vitrify contaminated waste

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1946858A2 (en) * 2005-09-12 2008-07-23 MARTINEZ MANENT, Salvador Method of producing glass articles
EP1946858A4 (en) * 2005-09-12 2012-03-14 Manent Salvador Martinez Method of producing glass articles
US8151482B2 (en) * 2008-11-25 2012-04-10 William H Moss Two-stage static dryer for converting organic waste to solid fuel

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DE4435166C1 (en) 1996-05-23

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