EP0317731A1 - Combustion-controlling method of fuel with a highly variable calorific value - Google Patents

Combustion-controlling method of fuel with a highly variable calorific value Download PDF

Info

Publication number
EP0317731A1
EP0317731A1 EP88115680A EP88115680A EP0317731A1 EP 0317731 A1 EP0317731 A1 EP 0317731A1 EP 88115680 A EP88115680 A EP 88115680A EP 88115680 A EP88115680 A EP 88115680A EP 0317731 A1 EP0317731 A1 EP 0317731A1
Authority
EP
European Patent Office
Prior art keywords
combustion
fuel
zone
determined
grate
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
EP88115680A
Other languages
German (de)
French (fr)
Other versions
EP0317731B1 (en
Inventor
Kurt-Henry Dipl.-Ing. Mindermann
Franz Dipl.-Ing. Wintrich
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
Application filed by Individual filed Critical Individual
Priority to AT88115680T priority Critical patent/ATE76957T1/en
Publication of EP0317731A1 publication Critical patent/EP0317731A1/en
Application granted granted Critical
Publication of EP0317731B1 publication Critical patent/EP0317731B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/003—Systems for controlling combustion using detectors sensitive to combustion gas properties
    • 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
    • F23G5/50—Control or safety arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2207/00—Control
    • F23G2207/10—Arrangement of sensing devices
    • F23G2207/104—Arrangement of sensing devices for CO or CO2
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2207/00—Control
    • F23G2207/20—Waste supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2207/00—Control
    • F23G2207/30—Oxidant supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L2900/00—Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
    • F23L2900/07003—Controlling the inert gas supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2221/00—Pretreatment or prehandling
    • F23N2221/08—Preheating the air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2221/00—Pretreatment or prehandling
    • F23N2221/12—Recycling exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00—Measuring
    • F23N2225/04—Measuring pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00—Measuring
    • F23N2225/26—Measuring humidity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2241/00—Applications
    • F23N2241/18—Incinerating apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/08—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements

Definitions

  • the invention relates to a method according to the preamble of claims 1 and 2.
  • the control of the combustion in waste incineration plants, the combustion gases of which are usually passed through a heat exchanger in the form of a steam generator, is currently largely manual.
  • the operator observes the combustion process on the grate and varies according to parameters that influence the combustion process, such as the distribution of the primary combustion air supplied under the grate to the zones, the conveying speed of the fuel in the zones, and other such parameters.
  • the calorific value correlates only to a very limited extent with the density of the burning layer.
  • the primary object of the invention is to reduce the dead time in the control. Secondly, the combustion should also take place at different calorific values so that the garbage is really burned completely at the downstream end of the grate, which in turn allows a reduction in pollutants in the exhaust gases and a noticeable reduction in air consumption.
  • a first aspect of the invention is defined in claim 1. It is based on the knowledge that in most cases the water content of the fuel is a characteristic indicator of its calorific value; for fuels with low water content and low calorific value, such as rubble, glass, metals, it is advisable to also record the CO2 content of the combustion gases as early as possible; if necessary, the detection of only this Co2 content is sufficient.
  • control chains can of course be suitably supplemented to form closed control loops.
  • the bands for H2O and CO2 allow characteristic values for the temperature of the combustion gases to be derived, while the acquisition of further bands, such as SO2, NO x , CO etc., make predictions with regard to enables the pollution of the gases and thus allows the flue gas cleaning systems usually provided today to be set to Optima.
  • FIG. 1 shows the garbage feed chute 10, a feed device 12 in the form of a reciprocating slide, the grate 14 in the form of six rollers, which are arranged one behind the other, axially parallel, and the ash discharge 16.
  • the steam generator 18 provides in connection with the invention no special features.
  • Below the grate are primary air supply lines 20, each of which, as can be seen in FIG. 3, is subdivided into a "right” and a "left”, separately controllable half.
  • a pressure measuring device 22 is arranged in each of the first two air supply lines 20a, the measured value of which fluctuates depending on the throttling of the flow through the fuel in the layer lying above the first two rollers and thus allows its average density to be determined.
  • the fuel volume used can be kept somewhat constant by accelerating or decelerating the entry by means of a slide 12.
  • the first two rollers which define the evaporation and degassing zone, there are observation lances 26 in the walls 24 on both sides, at the outer end of which measuring sensors are provided with upstream filters and downstream electronic processing circuits.
  • the selection of sensors and / or filters is made.
  • the band radiation is interested in H2O, and / or CO2, at a relatively low temperature in the range of e.g. 300..500 ° C, and the opto-electronic devices must be bent accordingly. (The same applies to the observation of the combustion and the ashes, as a matter of course).
  • the lances are directed to the "right" or "left” side of the grate, so that both sides are detected separately; this cannot be seen in the section according to FIG. 3, which lies approximately in the plane 2-2, but this applies analogously to the observation lances in the further zones.
  • At least one pair of observation lances 28 is in the combustion zone above the middle two rollers of the Grate 14 attached, and at least one further pair of observation lances 30 is located above the burnout zone, that is, above the last two rollers.
  • the combustion process is observed via the lances 28, most advantageously in the flame front, while the lances 30 serve mainly to measure the temperature for the ash discharge.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Incineration Of Waste (AREA)
  • Control Of Combustion (AREA)
  • Regulation And Control Of Combustion (AREA)

Abstract

In the operation of a refuse incinerator, the parameters affecting the combustion process are measured as a function of the water content of the refuse, the water content preferably being determined by means of a radiation receiver with downstream evaluation circuits responding to H2O bands in the spectrum. Evaluation of the spectra over a plurality of zones of the grate allows the air supply and the reduction of pollutants to be optimised. <IMAGE>

Description

Die Erfindung betrifft ein Verfahren gemäß dem Oberbegriff der Patentansprüche 1 und 2.The invention relates to a method according to the preamble of claims 1 and 2.

Die Steuerung der Verbrennung im Müllverbrennungsanlagen, deren Verbrennungsgase üblicherweise über einen Wärmetauscher in Form eines Dampferzeugers geleitet werden, erfolgt gegenwärtig weit­gehend manuell. Der Bedienungsmann beobachtet den Ablauf der Verbrennung auf dem Rost und varriiert entsprechend Parameter, die den Verbrennungsvorgang beeinflussen, so die Verteilung der unter dem Rost zugeführten Primär-Verbrennungsluft auf die Zo­nen, die Fördergeschwindigkeit des Brennstoffs in den Zonen, und andere solche Parameter.The control of the combustion in waste incineration plants, the combustion gases of which are usually passed through a heat exchanger in the form of a steam generator, is currently largely manual. The operator observes the combustion process on the grate and varies according to parameters that influence the combustion process, such as the distribution of the primary combustion air supplied under the grate to the zones, the conveying speed of the fuel in the zones, and other such parameters.

Im Gegensatz zu Dampferzeugern, die mit traditionellem fossilem Brennstoff wie Steinkohle, Schweröl oder Erdgas gefeuert werden, besteht bei Müll (aber auch bei anderen Brennstoffen, etwa Torf) das Problem, daß der Heizwert des Brennstoffs stark schwankt. Während etwa bei einem gasgefeuerten Kessel der Dampfmengenstrom am Ausgang des Dampferzeugers als Führungsgröße für die Steue­rung oder Regelung des Brennstoff- und/oder Luftdurchsatzes dienen kann, ist ein solcher unmittelbarer Zusammenhang bei der Müllverbrennung nicht gegeben; beim Einsetzen des Brennstoffs kann z.B. auf einen Ballen Altpapier eine größere Menge Garten­abfälle folgen, dann wieder Kunststoffbehälter, Glas usw. Diese Stoffe haben einen erheblich unterschiedlichen Heizwert.In contrast to steam generators, which are fired with traditional fossil fuel such as hard coal, heavy oil or natural gas, the problem with waste (but also with other fuels, such as peat) is that the calorific value of the fuel fluctuates greatly. While in a gas-fired boiler the steam flow at the outlet of the steam generator can serve as a reference variable for the control or regulation of the fuel and / or air throughput, there is no such direct connection in waste incineration; when using the fuel e.g. followed by a large amount of garden waste on a bale of waste paper, then plastic containers, glass, etc. These materials have a significantly different calorific value.

Man hat bereits versucht, die Luftdurchlässigkeit solchen Brennstoffs in der Verdampfungs- und Entgasungszone des Rostes zu erfassen, indem indirekt der Differenzdruck bezüglich der von unten in dieser Zone eingesetzten Primärluft gemessen wurde, und das Aufgabevolumen des Mülls so zu variieren, daß die mittlere Dichte des Brennstoffs einigermaßen konstant gehalten wird, wo­bei ebenfalls als Führungsgröße der Dampfmengenstrom vorgegeben ist. Diese Art der Steuerung ist jedoch mit erheblicher Totzeit behaftet, da der Durchlauf einer diskreten Menge Brennstoff von der Aufgabe bis zum Ascheaustrag mehrere zehn Minuten betragen kann und der unterschiedliche Heizwert, der hauptsächlich Pro­bleme bereitet, erst in der zweiten und dritten Zone zum Tragen kommt; in der dritten Zone insofern, als die Gefahr besteht, daß noch glühende Partikel oder zu heiße Asche ausgetragen werden.Attempts have already been made to ensure air permeability Detect fuel in the evaporation and degassing zone of the grate by indirectly measuring the differential pressure with respect to the primary air used from below in this zone, and to vary the volume of the refuse so that the average density of the fuel is kept reasonably constant, also the steam flow rate is specified as the reference variable. However, this type of control is associated with considerable dead time, since the passage of a discrete amount of fuel from the task to the ash discharge can take several ten minutes and the different calorific value, which mainly causes problems, only comes into play in the second and third zones; in the third zone insofar as there is a risk that glowing particles or too hot ashes will be discharged.

Überdies korreliert der Heizwert nur sehr bedingt mit der Dichte der jeweils verbrennenden Schicht.Furthermore, the calorific value correlates only to a very limited extent with the density of the burning layer.

Aufgabe der Erfindung ist es primär, die Totzeit bei der Steue­rung zu verringern. Sekundär soll auch die Verbrennung auch bei unterschiedlichen Heizwerten so erfolgen, daß am stromabliegen­den Ende des Rostes wirklich der Müll volständig verbrannt ist, was wiederum eine Schadstoffminderung in den Abgasen erlaubt so­wie eine merkliche Senkung des Luftverbrauchs.The primary object of the invention is to reduce the dead time in the control. Secondly, the combustion should also take place at different calorific values so that the garbage is really burned completely at the downstream end of the grate, which in turn allows a reduction in pollutants in the exhaust gases and a noticeable reduction in air consumption.

Ein erster Aspekt der Erfindung ist in Patentanspruch 1 definiert. Er beruht auf der Erkenntnis, daß in den meisten Fällen der Wassergehalt des Brennstoffs in charakteristisches Indiz für seinen Heizwert ist; für Brennstoffe mit geringem Wassergehalt und geringem Heizwert, wie Bauschutt, Glas, Metalle, ist es zweckmäßig, zusätzlich den CO₂-Ge­halt der Verbrennungsgase möglichst frühzeitig zu erfassen; gegebe­nenfalls genügt auch die Erfassung nur dieses Co₂-Gehalts.A first aspect of the invention is defined in claim 1. It is based on the knowledge that in most cases the water content of the fuel is a characteristic indicator of its calorific value; for fuels with low water content and low calorific value, such as rubble, glass, metals, it is advisable to also record the CO₂ content of the combustion gases as early as possible; if necessary, the detection of only this Co₂ content is sufficient.

Gemäß dem Aspekt der Erfindung, der in Patentanspruch 2 definiert ist, kann man eine sehr viel bessere Steuerung der Wärmeleistung er­zielen, wenn das Produkt aus dem Heizwert -- ermittelt vorzugsweise gemäß Patentanspruch 1 -- und der Dichte des Brennstoffs als Ein­gangsgröße ausgewertet wird.According to the aspect of the invention, which is defined in claim 2, a much better control of the thermal output can be achieved if the product of the calorific value - determined preferably according to claim 1 - and the density of the fuel is evaluated as an input variable.

Welche Parameter im einzelnen gesteuert werden, wird von der Bauart der Anlage abhängen; zur Vereinfachung sei auf die Patentansprüche 3 bis 11 verwiesen.Which parameters are controlled individually will depend on the type of system; for simplification, reference is made to claims 3 to 11.

Ferner ist anzumerken, daß natürlich die Steuerketten in geeig­neter Weise zu geschlossenen Regelkreisen ergänzt werden können.It should also be noted that the control chains can of course be suitably supplemented to form closed control loops.

Es ist bevorzugt, den Wassergehalt dadurch indirekt zu bestim­men, daß das für H₂O bzw. CO₂ charakteristische Bandenspektrum der Strahlung in der Verdampfungs- und Entgasungszone gemessen wird, wobei die Intensität Rückschlüsse auf den Wassergehalt des Gases und damit des Brennstoffs bzw. den Heizwert selbst er­laubt.It is preferred to indirectly determine the water content by measuring the band spectrum of the radiation characteristic of H₂O or CO₂ in the evaporation and degassing zone, the intensity allowing conclusions to be drawn about the water content of the gas and thus of the fuel or the calorific value itself .

Für die Optimierung der Verbrennung kann man dann auch die Strahlung in den nachfolgenden Zonen erfassen, wo die Banden für H₂O und CO₂ Kennwerte für die Temperatur der Verbrennungsgase abzuleiten gestatten, während die Erfassung weiterer Banden, wie SO₂, NOx, CO usw. Vorhersagen bezüglich der Schadstoffbelastung der Gase ermöglicht und so die heute üblicherweise vorgesehenen Rauchgasreinigungsanlagen auf Optima einzustellen gestattet.For the optimization of the combustion, one can then also record the radiation in the following zones, where the bands for H₂O and CO₂ allow characteristic values for the temperature of the combustion gases to be derived, while the acquisition of further bands, such as SO₂, NO x , CO etc., make predictions with regard to enables the pollution of the gases and thus allows the flue gas cleaning systems usually provided today to be set to Optima.

Ein Ausführungsbeispiel einer Anlage, bei der das Verfahren ge­mäß der Erfindung eingesetzt wird, in der beigefügten Zeichnung dargestellt und wird nachstehend beschrieben.

  • Fig. 1 zeigt, schematisiert, eine Müllverbrennungsanlage mit nachgeschaltetem Dampferzeuger,
  • Fig. 2 ist ein gegenüber Fig. 1 vergrößerter Längsschnitt nur des Brennraums, und
  • Fig. 3 ist ein entsprechender Schnitt in einer um 90° ver­setzten Ebene.
An embodiment of a plant in which the method according to the invention is used is shown in the accompanying drawing and is described below.
  • 1 shows, schematically, a waste incineration plant with a downstream steam generator,
  • FIG. 2 is a longitudinal section of the combustion chamber, and enlarged, compared to FIG. 1
  • Fig. 3 is a corresponding section in a plane offset by 90 °.

Man erkennt in Fig. 1 den Müllaufgabeschacht 10, eine Aufgabe­vorrichtung 12 in Form eines hinundhergehenden Schiebers, den Rost 14 in Form von sechs hintereinander achsparallel angeord­neten zum Umlauf angetriebenen Walzen und den Ascheaustrag 16. Der Dampferzeuger 18 bietet im Zusammenhang mit der Erfindung keine Besonderheiten.- Unterhalb des Rostes befinden sich Pri­märluft-Zuleitungen 20, wobei -- wie in Fig. 3 erkennbar -- jede nochmals in eine "rechte" und eine "linke", getrennt steuerbare Hälfte unterteilt ist.1 shows the garbage feed chute 10, a feed device 12 in the form of a reciprocating slide, the grate 14 in the form of six rollers, which are arranged one behind the other, axially parallel, and the ash discharge 16. The steam generator 18 provides in connection with the invention no special features. Below the grate are primary air supply lines 20, each of which, as can be seen in FIG. 3, is subdivided into a "right" and a "left", separately controllable half.

In den ersten beiden Luftzuleitungen 20a ist je ein Druckmess­gerät 22 angeordnet, dessen Meßwert je nach der Drosselung der Strömung durch den Brennstoff in der über den ersten beiden Walzen liegenden Schicht schwankt und somit dessen mittlere Dichte zu bestimmen gestattet. Anhand dieser Führungsröße kann das eingesetzt Brennstoffvolumen durch Beschleunigen oder Ver­zögern des Eintrags mittels Schieber 12 einigermaßen konstant gehalten werden.A pressure measuring device 22 is arranged in each of the first two air supply lines 20a, the measured value of which fluctuates depending on the throttling of the flow through the fuel in the layer lying above the first two rollers and thus allows its average density to be determined. On the basis of this guide variable, the fuel volume used can be kept somewhat constant by accelerating or decelerating the entry by means of a slide 12.

Oberhalb der ersten beiden Walzen, die die Verdampfungs- und Entgasungszone definieren, befinden sich beidseits in den Wan­dungen 24 Beobachtungslanzen 26, an deren äußerem Ende Meßaufnehmer gegebeneffals mit vorgeschalteten Filtern und nachgeschalteten elektronischen Verarbeitungsschaltkreisen vorgesehen sind. Je nach dem Spektrum, das primär interessiert, wird die Auswahl der Sensoren und/oder Filter getroffen. Hier interessiert die Band­enstrahlung H₂O, und/oder CO₂, und zwar bei relativ niedriger Temperatur im Bereich von z.B. 300..500°C, und entsprechend sind die opto-elektronischen Einrichtungen auszuiegen. (Dasselbe gilt für die Beobachtung der Verbrennung und der Asche, wie sich von selbst versteht).Above the first two rollers, which define the evaporation and degassing zone, there are observation lances 26 in the walls 24 on both sides, at the outer end of which measuring sensors are provided with upstream filters and downstream electronic processing circuits. Depending on the spectrum of primary interest, the selection of sensors and / or filters is made. Here the band radiation is interested in H₂O, and / or CO₂, at a relatively low temperature in the range of e.g. 300..500 ° C, and the opto-electronic devices must be bent accordingly. (The same applies to the observation of the combustion and the ashes, as a matter of course).

Die Lanzen sind auf die "rechte" bzw. "linke" Seite des Rostes gerichtet, so daß beide Seiten getrennt erfaßt werden; dies ist im Schnitt nach Fig. 3 nicht erkennbar, der etwa in der Ebene 2-2 liegt, doch gilt dies analog für die Beobachtungslanzen in den weiteren Zonen. Mindestens je ein Beobachtungslanzenpaar 28 ist in der Verbrennungszone über den mittleren beiden Walzen des Rostes 14 angebracht, und mindestens ein weiteres Beobachtungs­lanzenpaar 30 befindet sich über der Ausbrennzone, das heißt, über den beiden letzten Walzen.The lances are directed to the "right" or "left" side of the grate, so that both sides are detected separately; this cannot be seen in the section according to FIG. 3, which lies approximately in the plane 2-2, but this applies analogously to the observation lances in the further zones. At least one pair of observation lances 28 is in the combustion zone above the middle two rollers of the Grate 14 attached, and at least one further pair of observation lances 30 is located above the burnout zone, that is, above the last two rollers.

Über die Lanzen 28 wird der Verbrennungsvorgang beobachtet, am günstigsten in der Flammenfront, während die Lanzen 30 haupt­sächlich der Messung der Temperatur für den Ascheaustrag dienen.The combustion process is observed via the lances 28, most advantageously in the flame front, while the lances 30 serve mainly to measure the temperature for the ash discharge.

Es ist anzumerken, daß die Erfassung des CO-Gehalts in den Ver­brennungsgasen es ermöglicht, deren Gehalt auf ein Minimum zu bringen, wobei allerdings sowohl ein Luftunterschuß als auch ein Luftüberschuß zu hohe CO-Gehalte bewirken können; hier ist also eine differenzierte Auswertung erforderlich.It should be noted that the detection of the CO content in the combustion gases makes it possible to reduce their content to a minimum, although both an air deficit and an excess of air can result in excessively high CO contents; A differentiated evaluation is therefore necessary here.

Claims (23)

1. Verfahren zum Steuern der Verbrennung von Brennstoffen mit stark schwankendem Heizwert, insbesondere Müll, bei dem der Brennstoff über eine Aufgabestelle auf einen Rost, dem von unten Primärluft zugeführt wird, aufgegeben und längs des Rostes über eine Verdampfungs- und Entgasungszone, eine Verbrennungszone und eine Ausbrennzone zu einem Ascheabwurf gefördert wird, dadurch gekennzeichnet, daß in einem Be­reich, der die Aufgabestelle und die Verdampfungs- und Entgasungszone umfaßt, der Wassergehalt des Brennstoffs und/oder der CO₂-Gehalt der Verbrennungsgase gemessen werden und mindestens ein die Verbrennung beeinflussender Parameter in Abhängigkeit von den gewonnenen Meßwer­ten gesteuert wird.1. Method for controlling the combustion of fuels with a strongly fluctuating calorific value, in particular waste, in which the fuel is fed via a feed point onto a grate to which primary air is supplied from below and along the grate via an evaporation and degassing zone, a combustion zone and a burnout zone is promoted to ash disposal, characterized in that the water content of the fuel and / or the CO₂ content of the combustion gases are measured in an area which includes the feed point and the evaporation and degassing zone and at least one parameter influencing the combustion in Dependence on the measured values obtained is controlled. 2. Verfahren zum Steuern der Verbrennung von Brennstoffen mit stark schwankendem Heizwert, insbesondere Müll, bei dem der Brennstoff über eine Aufgabestelle auf einen Rost, dem von unten Primärluft zugeführt wird, aufgegeben und längs des Rostes über eine Verdampfungs- und Entgasungszone, eine Verbrennungszone und eine Ausbrennzone zu einem Ascheabwurf gefördert wird, dadurch gekennzeichnet, daß mittels eines berührungslosen Meßverfahrens der Heizwert der Brennstoffe in einem Bereich, der die Aufgabestelle und die Verdampfungs- und Entgasungs- zone umfaßt, aus Eigenschaften der Verbrennungsgase ermittelt wird, daß die Dichte des Brennstoffs auf dem Rost in demselben Bereich er­mittelt wird, und daß die Brennstoffaufgabe in Abhängigkeit von dem Produkt der beiden ermittelten Größen in Richtung konstanter Wärme­leistung gesteuert wird.2. Method for controlling the combustion of fuels with a strongly fluctuating calorific value, in particular waste, in which the fuel is fed via a feed point onto a grate to which primary air is supplied from below and along the grate via an evaporation and degassing zone, a combustion zone and a burn-out zone is promoted to an ash discharge, characterized in that, by means of a non-contact measuring method, the calorific value of the fuels in an area comprising the feed point and the evaporation and degassing zone is determined from properties of the combustion gases that the density of the fuel is determined the grate is determined in the same area, and the fuel feed is controlled in the direction of constant heat output as a function of the product of the two determined quantities. 3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß ein ge­steuerter Parameter die Verteilung der Primärluft auf die einzelnen Zonen ist.3. The method according to claim 1, characterized in that a controlled parameter is the distribution of the primary air to the individual zones. 4. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß ein ge­steuerter Parameter die Brennstoffmassenverteilung auf die einzelnen Zonen ist.4. The method according to claim 1, characterized in that a controlled parameter is the fuel mass distribution over the individual zones. 5. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß ein ge­steuerter Parameter das Brennstoffaufgabevolumen pro Zeiteinheit ist.5. The method according to claim 1, characterized in that a controlled parameter is the fuel feed volume per unit of time. 6. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß ein ge­steuerter Parameter die Verteilung von oberhalb des Rostes zugeführ­ter Sekundärluft auf die einzelnen Zonen ist6. The method according to claim 1, characterized in that a controlled parameter is the distribution of secondary air supplied above the grate to the individual zones 7. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß einer der gesteuerten Parameter das zugeführte Verbrennungsluftvolumen pro Zeiteinheit ist.7. The method according to claim 1, characterized in that one of the controlled parameters is the supplied combustion air volume per unit of time. 8. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß einer der gesteuerten Parameter die Temperatur der zugeführten Verbrennungsluft ist.8. The method according to claim 1, characterized in that one of the controlled parameters is the temperature of the supplied combustion air. 9. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß einer der gesteuerten Parameter die Verteilung von Verbrennungsluft quer zur Förderrichtung ist.9. The method according to claim 1, characterized in that one of the controlled parameters is the distribution of combustion air transverse to the conveying direction. 10. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß einer der gesteuerten Parameter die Verteilung des Brennstoffmasse quer zur Förderrichtung ist.10. The method according to claim 1, characterized in that one of the controlled parameters is the distribution of the fuel mass transverse to the conveying direction. 11. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß einer der gesteuerten Parameter den Anteil rückgeführter Verbrennungsgase ist, der der Verbrennungsluft beigemischt wird.11. The method according to claim 1, characterized in that one of the controlled parameters is the proportion of recirculated combustion gases that is added to the combustion air. 12. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß zur Bestimmung des Heizwertes der Wassergehalt des Brennstoffs bestimmt wird.12. The method according to claim 2, characterized in that the water content of the fuel is determined to determine the calorific value. 13. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß zur Bestimmung des Heizwerts der CO₂-Gehalt der Verbrennungsgase bestimmt wird.13. The method according to claim 2, characterized in that the CO₂ content of the combustion gases is determined to determine the calorific value. 14. Verfahren nach Anspruch 1, 12 oder 13, dadurch gekennzeichnet, daß die Messung des Wassergehalts und/oder die CO₂-Bestimmung durch Erfassen und Auswerten der in dem Bereich herrschenden Strahlung er­folgt.14. The method according to claim 1, 12 or 13, characterized in that the measurement of the water content and / or the CO₂ determination is carried out by detecting and evaluating the radiation prevailing in the area. 15. Verfahren nach Anspruch 14, dadurch gekennzeichnet, daß die In­tensität des H₂O-Bandenspektrums und/oder des CO₂-Bandenspektrums gemessen und ausgewertet wird.15. The method according to claim 14, characterized in that the intensity of the H₂O band spectrum and / or the CO₂ band spectrum is measured and evaluated. 16. Verfahren nach Anspruch 15, dadurch gekennzeichnet, daß zusätz­lich die Flammenmodulation der Strahlung ausgewertet wird.16. The method according to claim 15, characterized in that the flame modulation of the radiation is additionally evaluated. 17. Verfahren nach Anspruchg 14, dadurch gekennzeichnet, daß die Strahlung auch in der Verbrennungszone erfaßt und für Zwecke der Feinsteuerung ausgewertet wird.17. The method according to claim 14, characterized in that the radiation is also detected in the combustion zone and is evaluated for the purposes of fine control. 18. Verfahren nach Anspruch 14 oder 17, dadurch gekennzeichnet, daß die Strahlung auch in der Ausbrennzone erfaßt und für Zwecke der Feinsteuerung ausgewertet wird.18. The method according to claim 14 or 17, characterized in that the radiation is also detected in the burnout zone and evaluated for the purposes of fine control. 19. Verfahren nach einem der Ansprüche 14 bis 18, dadurch gekenn­zeichnet, daß zusätzliche, für den Verbrennungsvorgang charakteri­stische Banden des Strahlungsspektrums erfaßt und ausgewertet werden.19. The method according to any one of claims 14 to 18, characterized in that additional bands of the radiation spectrum which are characteristic of the combustion process are detected and evaluated. 20. Verfahren nach Anspruch 19, dadurch gekennzeichnet, daß minde­stens eine der Banden erfaßt und ausgewertet wird, die charakteri­stisch sind für die nachstehend genannten Verbindungen: SO₂, CO, NO, NO₂, OH, CH, C₂, HCO.20. The method according to claim 19, characterized in that at least one of the bands is detected and evaluated, which are characteristic of the compounds mentioned below: SO₂, CO, NO, NO₂, OH, CH, C₂, HCO. 21. Verfahren nach einem der vorangehenden Ansprüche, bei dem die Verbrennungsgase über Heizflächen eines Dampferzeugers geführt wer­den, dadurch gekennzeichnet, daß der erzeugte Dampfmengenstrom als Hilfsgröße bei der Steuerung verwertet wird.21. The method according to any one of the preceding claims, in which the combustion gases are passed over heating surfaces of a steam generator, characterized in that the steam flow generated is used as an auxiliary variable in the control. 22. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß die Brennstoffdichte durch Wägung bestimmt wird.22. The method according to claim 2, characterized in that the fuel density is determined by weighing. 23. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß die Brennstoffdichte aus dem Druckabfall der Primärluft bestimmt wird.23. The method according to claim 2, characterized in that the fuel density is determined from the pressure drop in the primary air.
EP88115680A 1987-10-24 1988-09-23 Combustion-controlling method of fuel with a highly variable calorific value Expired - Lifetime EP0317731B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88115680T ATE76957T1 (en) 1987-10-24 1988-09-23 METHOD OF CONTROLLING THE COMBUSTION OF FUEL WITH LARGELY FLUSHING CALCULATORY VALUE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3736067 1987-10-24
DE3736067 1987-10-24

Publications (2)

Publication Number Publication Date
EP0317731A1 true EP0317731A1 (en) 1989-05-31
EP0317731B1 EP0317731B1 (en) 1992-06-03

Family

ID=6339018

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88115680A Expired - Lifetime EP0317731B1 (en) 1987-10-24 1988-09-23 Combustion-controlling method of fuel with a highly variable calorific value

Country Status (7)

Country Link
US (2) US4895082A (en)
EP (1) EP0317731B1 (en)
AT (1) ATE76957T1 (en)
DE (1) DE3871729D1 (en)
ES (1) ES2031563T3 (en)
IN (1) IN171926B (en)
PT (1) PT88803B (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3825931A1 (en) * 1988-07-29 1990-02-01 Martin Umwelt & Energietech METHOD AND DEVICE FOR CONTROLLING THE FIRING POWER OF COMBUSTION PLANTS
DE4301082A1 (en) * 1993-01-16 1994-07-21 Steinmueller Gmbh L & C Method for supplying an O¶2¶-containing combustion gas to an incinerator with grate firing and device for carrying out the method
DE4344906A1 (en) * 1993-12-29 1995-07-06 Martin Umwelt & Energietech Process for controlling individual or all factors influencing the combustion on a grate
EP0718553A1 (en) 1994-12-22 1996-06-26 ABB Management AG Method of combustion of wastes
AT402555B (en) * 1992-09-04 1997-06-25 August Dr Raggam Combustion apparatus
EP0612961B1 (en) * 1993-02-24 1998-04-29 RWE Entsorgung Aktiengesellschaft Method for determining characteristic properties of processes producing radicals
EP1046861A1 (en) * 1999-04-19 2000-10-25 ABB Alstom Power (Schweiz) AG Process to regulate automatically the combustion of a waste incinerator
EP1048900A1 (en) 1999-04-28 2000-11-02 ORFEUS Combustion Engineering GmbH Method and device for controlling the combustion of fuel with a variable calorific value
DE102007055168A1 (en) * 2007-11-19 2009-05-20 Siemens Ag Österreich Method for controlling a solid fuel firing device
WO2013107509A1 (en) * 2012-01-18 2013-07-25 Heinrich Unland System for determining an energy content of a fuel
WO2020252513A1 (en) * 2019-06-21 2020-12-24 Technische Universität Wien Method for analyzing and optimizing the operation of waste incinerator systems

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4962749A (en) * 1989-11-13 1990-10-16 Carrier Corporation Method of operating a natural gas furnace with propane
DE4215997C2 (en) * 1992-05-13 1995-09-07 Noell Abfall & Energietech Process for regulating the amount of waste or the layer of waste on combustion grates
US5339751A (en) * 1992-09-01 1994-08-23 Ash Grove Cement Company Apparatus and method for charging combustible solids into a rotary kiln
DE4308055A1 (en) * 1993-03-13 1994-09-15 Rwe Entsorgung Ag Process for controlling thermal processes
IL114750A0 (en) * 1994-07-28 1995-11-27 Ormat Ind Ltd Method of and apparatus for efficiently combusting low grade solid fuel
US5388537A (en) * 1994-08-02 1995-02-14 Southern California Edison Company System for burning refuse-derived fuel
CA2205766C (en) * 1996-09-12 2001-02-20 Mitsubishi Denki Kabushiki Kaisha Combustion system and operation control method thereof
US6327897B1 (en) * 1997-01-24 2001-12-11 Mainstream Engineering Corporation Method of introducing an in situant into a vapor compression system, especially useful for leak detection, as well as an apparatus for leak detection and a composition useful for leak detection
RU2147393C1 (en) 1999-04-29 2000-04-10 Закрытое акционерное общество "Вирис" Current-conducting cloth and process of its manufacture
NL1014516C2 (en) * 1999-06-04 2000-12-06 Tno System for determining process parameters related to thermal processes, such as waste incineration.
NL1013209C2 (en) * 1999-10-04 2001-04-05 Tno Control system for an incineration plant, such as a waste incineration plant.
US20080015826A1 (en) * 2004-09-20 2008-01-17 Jean-Christophe Ealet Method And Device Of Predictive Assessment Of Thermal Load For Solid Waste Incineration Plants
AU2010295258B2 (en) * 2009-09-21 2014-07-24 Kailash & Stefan Pty Ltd Combustion control system
JP7316234B2 (en) * 2020-02-26 2023-07-27 三菱重工業株式会社 Control device, control method and program

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR786908A (en) * 1935-02-14 1935-09-14 Pillard Chauffage Combustion quality control device
US3223326A (en) * 1961-12-20 1965-12-14 Combustion Eng Method and apparatus for controlling combustion
US3223058A (en) * 1962-10-31 1965-12-14 Von Roll Ag Method and installation for the production of steam, particularly through the combustion of refuse and other low quality fuels
FR2095464A5 (en) * 1970-06-12 1972-02-11 Iwatani & Co
EP0039909A2 (en) * 1980-05-09 1981-11-18 The Boeing Company Starved-air combustor
DE3331625A1 (en) * 1982-09-03 1984-03-15 Hitachi, Ltd., Tokyo DIAGNOSTIC METHOD FOR COMBUSTION IN A STOVE
US4441435A (en) * 1981-10-21 1984-04-10 Hitachi, Ltd. Fluidizing gas control system in fluidized-bed incinerator
US4492560A (en) * 1983-11-14 1985-01-08 Hardy Sundberg Gas combustion control apparatus
DE3514609A1 (en) * 1984-05-03 1985-11-07 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Control device for the fuel/air ratio of a heat source
EP0160884A2 (en) * 1984-05-03 1985-11-13 Joh. Vaillant GmbH u. Co. Air to fuel-ratio controller for a heating source

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1602092A (en) * 1922-12-28 1926-10-05 Babcock & Wilcox Co Combustion regulator
FR1504529A (en) * 1966-07-05 1967-12-08 Bijoux G L Set to attach a letter to an object
DE2837174C2 (en) * 1978-08-25 1986-02-20 Vereinigte Kesselwerke AG, 4000 Düsseldorf Method and device for burning a poorly ignitable, low-gas fuel with dry ash vent
JPS5625609A (en) * 1979-08-06 1981-03-12 Takuma Co Ltd Automatic operating device of waste incinerator
JPS5640018A (en) * 1979-09-07 1981-04-16 Takuma Co Ltd Method of automatically controlling stoker speed in refuse incinerator
JPS5668714A (en) * 1979-11-08 1981-06-09 Toshiba Corp Controlling device for operation of incinerator
US4331086A (en) * 1980-05-09 1982-05-25 The Boeing Company Hot gas recycle for starved-air combustor
US4331085A (en) * 1980-05-09 1982-05-25 Tyer Robert C Exit gas control for flame stabilization and performance tuning of starved-air auger combustor
US4315468A (en) * 1980-05-09 1982-02-16 The Boeing Company Control system for a single auger starved-air combustor
JPS5733713A (en) * 1980-08-07 1982-02-23 Nippon Kokan Kk <Nkk> Controlling method for reciprocating speed of fire grate in refuse incinerator
US4385567A (en) * 1980-10-24 1983-05-31 Solid Fuels, Inc. Solid fuel conversion system
JPS6038610B2 (en) * 1981-04-09 1985-09-02 株式会社クボタ Automatic control method for incinerator
US4430963A (en) * 1982-12-03 1984-02-14 General Signal System for generating dry coal weight signal for coal feeder and control system based thereon
JPS59107111A (en) * 1982-12-09 1984-06-21 Ebara Corp Fluidized-bed type incinerating method of refuse
JPS59180213A (en) * 1983-03-30 1984-10-13 Takuma Co Ltd Step type stoker
JPS6170315A (en) * 1984-09-13 1986-04-11 Ebara Corp Method and device for thermal disposal of waste of plastics or waste including plastics

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR786908A (en) * 1935-02-14 1935-09-14 Pillard Chauffage Combustion quality control device
US3223326A (en) * 1961-12-20 1965-12-14 Combustion Eng Method and apparatus for controlling combustion
US3223058A (en) * 1962-10-31 1965-12-14 Von Roll Ag Method and installation for the production of steam, particularly through the combustion of refuse and other low quality fuels
FR2095464A5 (en) * 1970-06-12 1972-02-11 Iwatani & Co
EP0039909A2 (en) * 1980-05-09 1981-11-18 The Boeing Company Starved-air combustor
US4441435A (en) * 1981-10-21 1984-04-10 Hitachi, Ltd. Fluidizing gas control system in fluidized-bed incinerator
DE3331625A1 (en) * 1982-09-03 1984-03-15 Hitachi, Ltd., Tokyo DIAGNOSTIC METHOD FOR COMBUSTION IN A STOVE
US4492560A (en) * 1983-11-14 1985-01-08 Hardy Sundberg Gas combustion control apparatus
DE3514609A1 (en) * 1984-05-03 1985-11-07 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Control device for the fuel/air ratio of a heat source
EP0160884A2 (en) * 1984-05-03 1985-11-13 Joh. Vaillant GmbH u. Co. Air to fuel-ratio controller for a heating source

Non-Patent Citations (9)

* Cited by examiner, † Cited by third party
Title
AUTOMATISME, Band 13, Nr. 5, Mai 1968, Seiten 213-219; J. JULLIEN: "Contrôle centralisé et régulation des usines de traitement industriel des résidus urbains" *
PATENT ABSTRACTS OF JAPAN, Band 10, Nr. 191 (M-495)[2247], 4. Juli 1986; & JP-A-61 36 611 (KAWASAKI HEAVY IND., LTD) 21-02-1986 *
PATENT ABSTRACTS OF JAPAN, Band 10, Nr. 238 (M-508)[2294], 16. August 1986; & JP-A-61 70 315 (EBARA CORP.) 11-04-1986 *
PATENT ABSTRACTS OF JAPAN, Band 11, Nr. 157 (M-590)[2604], 21. Mai 1987; & JP-A-61 289 226 (HITACHI LTD) 19-12-1986 *
PATENT ABSTRACTS OF JAPAN, Band 5, Nr. 131 (M-84)[803], 21. August 1981; & JP-A-56 68 714 (TOKYO SHIBAURA DENKI K.K.) 09-06-1981 *
PATENT ABSTRACTS OF JAPAN, Band 6, Nr. 101 (M-135)[979], 10. Juni 1982; & JP-A-57 33 713 (NIPPON KOKAN K.K.) 23-02-1982 *
PATENT ABSTRACTS OF JAPAN, Band 6, Nr. 167 (M-153)[1045], 31. August 1982; & JP-A-57 82 609 (KUBOTA TEKKO K.K.) 24-05-1982 *
PATENT ABSTRACTS OF JAPAN, Band 8, Nr. 224 (M-331)[1661], 13. Oktober 1984; & JP-A-59 107 111 (EBARA SEISAKUSHO K.K.) 21-06-1984 *
PATENT ABSTRACTS OF JAPAN, Band 9, Nr. 300 (M-433)[2023], 27. November 1985; & JP-A-60 138 323 (HITACHI SEISAKUSHO K.K.) 23-07-1985 *

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3825931A1 (en) * 1988-07-29 1990-02-01 Martin Umwelt & Energietech METHOD AND DEVICE FOR CONTROLLING THE FIRING POWER OF COMBUSTION PLANTS
AT402555B (en) * 1992-09-04 1997-06-25 August Dr Raggam Combustion apparatus
DE4301082A1 (en) * 1993-01-16 1994-07-21 Steinmueller Gmbh L & C Method for supplying an O¶2¶-containing combustion gas to an incinerator with grate firing and device for carrying out the method
EP0612961B1 (en) * 1993-02-24 1998-04-29 RWE Entsorgung Aktiengesellschaft Method for determining characteristic properties of processes producing radicals
DE4344906A1 (en) * 1993-12-29 1995-07-06 Martin Umwelt & Energietech Process for controlling individual or all factors influencing the combustion on a grate
EP0718553A1 (en) 1994-12-22 1996-06-26 ABB Management AG Method of combustion of wastes
EP1046861A1 (en) * 1999-04-19 2000-10-25 ABB Alstom Power (Schweiz) AG Process to regulate automatically the combustion of a waste incinerator
EP1048900A1 (en) 1999-04-28 2000-11-02 ORFEUS Combustion Engineering GmbH Method and device for controlling the combustion of fuel with a variable calorific value
DE19919222C1 (en) * 1999-04-28 2001-01-11 Orfeus Comb Engineering Gmbh Method for controlling the combustion of fuel with a variable calorific value
DE102007055168A1 (en) * 2007-11-19 2009-05-20 Siemens Ag Österreich Method for controlling a solid fuel firing device
WO2009065726A1 (en) * 2007-11-19 2009-05-28 Siemens Ag Österreich Method for regulating a solid fuel firing unit
WO2013107509A1 (en) * 2012-01-18 2013-07-25 Heinrich Unland System for determining an energy content of a fuel
WO2020252513A1 (en) * 2019-06-21 2020-12-24 Technische Universität Wien Method for analyzing and optimizing the operation of waste incinerator systems
US12000587B2 (en) 2019-06-21 2024-06-04 Technische Universität Wien Method for analyzing and optimizing the operation of waste incinerator systems

Also Published As

Publication number Publication date
IN171926B (en) 1993-02-06
DE3871729D1 (en) 1992-07-09
PT88803A (en) 1989-07-31
PT88803B (en) 1994-01-31
ES2031563T3 (en) 1992-12-16
US4984524A (en) 1991-01-15
US4895082A (en) 1990-01-23
EP0317731B1 (en) 1992-06-03
ATE76957T1 (en) 1992-06-15

Similar Documents

Publication Publication Date Title
EP0317731B1 (en) Combustion-controlling method of fuel with a highly variable calorific value
DE4344906C2 (en) Process for controlling individual or all factors influencing the combustion on a grate
DE69000870T2 (en) METHOD AND DEVICE FOR WASTE ELIMINATION.
DE19735139C1 (en) Method for determining the average radiation from a combustion bed in incineration plants and controlling the combustion process
DE3904272C3 (en) Method for detecting the radiation emanating from at least two spatially separate locations of at least one combustion zone on a grate and device for detecting such radiation
EP0718553B1 (en) Method of combustion of wastes
DE19820038C2 (en) Process for controlling the fire performance of incinerators
DE69219513T2 (en) Method and device for determining an unburned amount of components in the ashes of a coal-fired boiler
DE4217070A1 (en) BOILERS AND OTHER COMBUSTION CHAMBERS AND A METHOD FOR MIXING COMBUSTION OF COAL AND RUBBER
DE2950646C2 (en) Method for optimizing the operation of a natural draft combustion zone
DE19919222C1 (en) Method for controlling the combustion of fuel with a variable calorific value
CH694823A5 (en) A method for operating an incinerator.
EP0499976B1 (en) Method for operating an incineration plant
EP1851481A1 (en) Method for increasing the package throughput in rotary kiln plants
DE3423946A1 (en) CONTROL METHOD FOR THE COMBUSTION AIR AMOUNT OF A COMBUSTION DEVICE
DE69101064T2 (en) METHOD AND DEVICE FOR BURNING SOLID WASTE AND POTENTIAL LIQUID WASTE OF VARIOUS TYPES.
EP1046861B1 (en) Process to regulate automatically the combustion of a waste incinerator
DE19605287C2 (en) Method and device for controlling the travel time of a boiler
DE2559067A1 (en) PROCESS FOR CONTROLLING THE SINTERING PROCESS OF AN ORE ON AN ENDLESS GRATE WITH INTEGRATED COOLING
EP1489355A1 (en) Method and Apparatus for Controlling the Heating Power of Incinerators
EP3964752B1 (en) Method for operating a combustion plant
AT412903B (en) METHOD FOR CONTROLLING BZW. CONTROL OF FUELING SYSTEMS AND THEREBY REGULATORY FIRING SYSTEM
CH673149A5 (en)
EP2643637A2 (en) Method and apparatus for controlling combustion in a combustion boiler
DE3024401A1 (en) METHOD FOR CONTROLLED COMBUSTION OF SOLID FOSSIL FUELS, ESPECIALLY CARBON DUST

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE DE ES GB NL

17P Request for examination filed

Effective date: 19890805

17Q First examination report despatched

Effective date: 19910418

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE DE ES GB NL

REF Corresponds to:

Ref document number: 76957

Country of ref document: AT

Date of ref document: 19920615

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 3871729

Country of ref document: DE

Date of ref document: 19920709

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2031563

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19990813

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19990827

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19990917

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20000824

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000923

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20010301

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20010201

BERE Be: lapsed

Owner name: WINTRICH FRANZ

Effective date: 20000930

Owner name: MINDERMANN KURT-HENRY

Effective date: 20000930

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20000923

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020401

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20020401

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20020401

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20070917

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20071121

Year of fee payment: 20