EP1274961B1 - Procede d'incineration de matiere combustible solide - Google Patents

Procede d'incineration de matiere combustible solide Download PDF

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Publication number
EP1274961B1
EP1274961B1 EP00918617A EP00918617A EP1274961B1 EP 1274961 B1 EP1274961 B1 EP 1274961B1 EP 00918617 A EP00918617 A EP 00918617A EP 00918617 A EP00918617 A EP 00918617A EP 1274961 B1 EP1274961 B1 EP 1274961B1
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EP
European Patent Office
Prior art keywords
combustible material
zone
incineration
combustion air
carrier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP00918617A
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German (de)
English (en)
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EP1274961A1 (fr
Inventor
Hendrik Seghers
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Keppel Seghers Holdings Pte Ltd
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Seghers Keppel Technology Group
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Publication of EP1274961A1 publication Critical patent/EP1274961A1/fr
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Classifications

    • 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
    • F23L1/00—Passages or apertures for delivering primary air for combustion 
    • F23L1/02—Passages or apertures for delivering primary air for combustion  by discharging the air below the fire
    • 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
    • F23G5/002—Incineration of waste; Incinerator constructions; Details, accessories or control therefor characterised by their grates
    • 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
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H7/00—Inclined or stepped grates
    • F23H7/06—Inclined or stepped grates with movable bars disposed parallel to direction of fuel feeding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/02—Regulating fuel supply conjointly with air supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2207/00—Control
    • F23G2207/10—Arrangement of sensing devices
    • F23G2207/102—Arrangement of sensing devices for pressure
    • 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
    • F23G2207/112—Arrangement of sensing devices for waste supply flowrate
    • 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
    • F23G2207/113—Arrangement of sensing devices for oxidant supply flowrate
    • 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
    • F23N2241/00—Applications
    • F23N2241/18—Incinerating apparatus

Definitions

  • the present invention relates to a process for incinerating solid combustible material, in particular solid combustible refuse, as described in the preamble of the first claim.
  • solid combustible material in general is referred to as well as solid refuse material in particular.
  • an incineration process in which the combustion of solid combustible material can be controlled on a permanent basis is highly desirable for a number of reasons.
  • a stable combustion facilitates meeting the emission standards imposed by law for exhaust gasses, flue dust and ashes.
  • energy costs for maintaining the optimal combustion conditions can be minimised.
  • temperature variations within the incinerator also the variations in thermal and mechanical loads to which the incinerator is subjected can be minimised, which in turn will lead to an extended lifetime of the incinerator, in particular of the feeding and combustion grate.
  • a refuse incinerator may be complicated by variations occurring in a.o. size and density of the refuse which is mostly supplied in the form of more or less dense packs, and variations in the composition of the refuse, for example its water content, which lead to variations in the calorific value of the refuse. Variations in these parameters may largely complicate the process and its control system, in particular in case the control system aims at constant steam production output, wherein a steam controller controls the refuse combustion rate.
  • the steam controller controls the amount of primary combustion air supplied to the incinerator, based on the steam output.
  • the primary combustion air is responsible for the maintenance of the combustion process.
  • This kind of system however is often burdened with the problem of an overloaded combustion grate system and incompletely burned ashes. Namely as steam output decreases, additional primary combustion air is supplied to the incinerator. This often leads to a further reduction of the combustion chamber temperature instead of an increase thereof. Cooling of the combustion chamber especially occurs in case the primary air is not capable of penetrating the refuse, for instance because the waste is too dense, or a big heap of wet refuse is formed. As the combustion rate decreases and the primary air supply is nevertheless increased, the oven cools down. Simultaneously the oxygen concentration in the flue gases increases.
  • a second known system that aims at constant steam output, the latter is controlled by controlling the amount of refuse supplied to the incinerator. Thereto, the speed of the grate supplying the refuse to the oven is varied.
  • Such a system often entails the problem of involving an overloaded combustion grate system, especially in case the refuse is rather dense and the primary air is hardly capable of penetrating the refuse. As a result, the refuse may be incompletely burned, even when supplying a large amount of primary air.
  • the method disclosed in US-A-5.398.623 has the disadvantage that the system with which the amount of refuse on the combustion grate system is monitored and controlled is one and the same system, i.e. the hydraulic drive mechanism that drives the combustion grate system.
  • the speed of the combustion grate system is controlled by adjusting the flow rate of the hydraulic liquid in the hydraulic drive mechanism.
  • the hydraulic pressure as such in the drive system is varied and the hydraulic pressure measured will no longer correspond to the amount of refuse present on the combustion grate system.
  • EP-A-0 9 55 499 discloses a method for the incineration of solid combustible material in an incineration reator according to the preamble of claim 1 in which the rate of flow of primary air to combustion zones in the incinerator is adjusted based on measurement devices located within the combustion zones.
  • Patent Abstracts of Japan, Vol 008, No 258 (M-340) in respect of JP 59129316 A. describes a process for drying dust in which a dust feeder is controlled in response to sensed values of pressure below the drying grids and the volume of air to be fed below the drying grids. Neither devices nor methods disclosed obtain reliable measurement readings owing fouling and inaccurate readings from the sensors. Consequently, combustion or drying is inefficient.
  • ⁇ P ro is the optimum gas pressure difference over the refuse bed on the carrier, which corresponds to an optimum incineration process and is representative for the optimum amount of refuse on the carrier.
  • ⁇ P ro is representative for the optimum amount of refuse on the carrier
  • the speed of the carrier for the refuse is controlled by adjusting the hydraulic pressure of the mechanism which drives the carrier.
  • the amount of refuse present on the carrier is determined by measuring the gas pressure difference over the carrier in the incinerator. In that way the driving of the carrier is uncoupled from the measurement of the amount of refuse on the carrier, so that interference of both phenomena can be prevented and a reliable measurement of the amount of refuse on the carrier can be done.
  • the speed of the grate can be controlled in a continuous manner.
  • the movement of the carrier can namely be described as a repeated alternating, slow, back and forth sliding in an approximately continuous manner, to advance the refuse over the carrier.
  • the carrier can be driven in an approximately continuous manner, there is no necessity to provide dead times between the back and forth sliding of the carrier and the speed with which the carrier is displaced can be kept rather low. In that way not only a more constant steam production can be achieved, but also dust production can be reduced and sudden changes in the release of pollutants in the flue gasses can be avoided, thus leading to a more stable operation of a flue gas treatment plant provided after the incinerator.
  • ⁇ P is divided by the square of the volumetric primary air flow rate v 2 pa (m 3 /s) through the carrier, as a pressure difference over a duct. i.c. a combustion grate element, is always proportional to the square of the flow through that duct. With this correction the influence of varying primary combustion air flow rate on ⁇ P, thus on the speed of the combustion grate system can be minimised.
  • the incineration zone is divided into a plurality of individual combustion zones, primary combustion air being supplied to each Individual zone, the primary combustion air supply flow rate being adjusted for each individual air supply or incineration zone.
  • the actual gas pressure P g z at each primary combustion air Inlet device and the actual pressure P i z above the carrier in each individual incineration zone z is measured and ⁇ P r z is calculated for each zone.
  • the values of P i z can be approximated to reasonable accuracy by a single measurement of P i in the incinerator.
  • the flow rate V pa is measurable and adjustable for each zone.
  • Primary combustion air is supplied to the incinerator through a primary combustion air supply device.
  • the primary combustion air supply device comprises an inlet through which primary combustion air is supplied to the primary combustion air supply device and an outlet through which primary combustion air is supplied from the primary combustion air supply device to an incineration zone of the incinerator.
  • the flow rate of the primary combustion air in each individual zone is measured by determining
  • an air supply device use can be made of devices that are generally known in the art, for example an air fan or an air supply valve.
  • the calculation may be corrected for variations In the rotation speed of the fan. Determination of the flow rate of the primary combustion air per combustion zone is also possible when primary air is supplied through the existing technique of one single fan, from which the primary combustion air is distributed towards the individual incineration zones through gas control valves, for example butterfly or register valves. In that case the pressure difference over the control valve is measured, and a calculation is done based on the characteristic curve of the control valve instead of the characteristic curve of the fan.
  • An example of pressure variations that are not important to the incineration process as such, is in case the carrier comprises a plurality of subsequent grate elements, the dropping of an amount of refuse from one element on the next element.
  • the present invention also relates to a device for incinerating solid combustible material, the device comprising an incineration reactor with at least one incineration zone for combusting the combustible material, a carrier for carrying the combustible material and feeding the combustible material through the at least one incineration zone, a device for supplying combustion air below the carrier and means for adjusting the amount of combustible material in the incineration zone.
  • One embodiment of the present invention is a device for incinerating solid combustible material in an Incineration zone In an incineration reactor such that an optimum amount of material is present in the incineration zone, comprising:
  • the present invention also relates to a device as described above, wherein the carrier for the combustible material comprises a plurality of individual grate elements for advancing the combustible material through the incineration zone, an air supply device being provided below each grate element
  • the present invention also relates to a device as described above, wherein the carrier for the combustible material comprises a plurality of first individual combustion grate elements, the first grate elements being slideably mounted in forward and backward direction for transporting the refuse from a former combustion zone to a next combustion zone.
  • the present invention also relates to a device as described above, wherein the combustion grate system comprises a plurality of second grate elements, the first grate elements alternating with the second grate elements, the second grate elements being mounted In such a way that they can be tumbled to improve the intensity of the combustion.
  • the present invention also relates to a device as described above, wherein the combustion grate system comprises between the second grate element and a subsequent first grate element, a third grate element, the third grate element being stationary mounted.
  • the present invention also relates to a device as described above, wherein the first and second elements are individually controllable.
  • the present invention also relates to a device as described above, wherein the device comprises means for controlling the speed of the first and second grate elements in a continuous manner.
  • the carrier for the combustible material preferably comprises a plurality of individual grate elements for advancing the combustible material through the incineration zone, a primary combustion air supply device being provided below each grate element to allow an improved control of the incineration process.
  • the most used technique for supplying primary combustion air to the incinerator at this moment makes use of one single air fan. From the air fan primary combustion air distribution over and along the different combustion grate elements is controlled by means of butterfly or register valves.
  • the device further preferably comprises a bum out control device to ensure that the solid combustible material has been completely bumed before it is removed from the incinerator.
  • the incinerator shown in figure 1 comprises overhead cranes 1 for transferring solid combustible material, for example refuse 2 to a reactor feed hopper and a loading chute 3.
  • the chute in fact functions as an air seal for the top of the incinerator, but is also provided for distributing the refuse 5 to a refuse supply device 6 with which the refuse is supplied to a carrier 7 for transporting the combustible material through the incinceration zone where it is combusted.
  • the carrier 7 can be any carrier known to those skilled in the art, but preferably comprises a combustion grate system.
  • the combustion grate system is further provided for drying the combustible material, igniting and burning it in the gasification and combustion zone.
  • primary combustion air is supplied to the incinerator through a primary combustion air supply device 8 which is preferably located below the combustion grate system.
  • the primary combustion air supply device 8 may for example comprise an air supply fan or valve or any other primary combustion air supply device known in the art.
  • the incineratore further preferably comprises a bum out control device to ensure that the solid combustible material is completely burnt out before it leaves the incinerator.
  • the combustion grate system 7 used in the incinerator of this invention preferably comprises a plurality of combustion grate elements (11-16).
  • the combustion grate elements 11-16 further function as a means for transporting and mixing the combustible material 1 from the feed hopper 3 to a former to a next combustion grate element, and finally to an ash discharge 6.
  • an air supply device is provided below each group of grate element 11-16 to provide an improved control of the combustion process.
  • an air supply device preferably use is made of a valve or a fan, but other air supply devices known in the art may also be used.
  • Each air supply device comprises an inlet through which primary combustion air is supplied and an outlet through which the primary combustion air leaves the air supply device towards the incinerator.
  • Means are provided for determining the air flow rate at the outlet of the primary air supply device. This can be done by actually measuring the pressure at the inlet and outlet of the primary combustion air supply device and determining the corresponding flow from the characteristic curve of the air supply device.
  • the combustion grate system 7 preferably comprises a plurality individual grate elements, preferably a plurality of sliding tiles, 11, 14 with which the layer of the combustible material is displaced over the combustion grate.
  • the sliding movement of the tiles is preferably a slow, continuous movement, so as to avoid dust generation in the incinerator and increase the life time of the incinerator. Besides this, when continuously moving the tiles 11, 14 a virtually continuous steam production and consequently a virtually continuous electricity production can be ensured.
  • the sliding tiles 11, 14 determine the thickness of the layer of the combustible material, the residence time of the combustible material in each combustion zone and the combustion quality
  • the combustion grate system 7 further preferably comprises a plurality of tumbling tiles (12, 15), which disentangle and aerate the refuse. This is important for drying and ignition of the refuse, to activate the combustion where and if necessary and to obtain a complete bum-out of the ashes.
  • This combination of horizontal throughput action (sliding) and vertical aeration action (tumbling) allows the incinerator to adapt to short and long term fluctuations in the composition of the refuse.
  • the throughput (sliding) and aeration (tumbling) can be controlled for each individual zone (combustion grate element).
  • an independent control of the two motions i.e. the sliding and tumbling is highly desirable.
  • the tumbling action is stopped automatically because of the increased risk of dust production when disentangling and more intense aeration of the refuse is not necessary.
  • flue gases are generated, which are mostly withdrawn from the incinerator through a fan.
  • a refuse incinerating reactor is often coupled to a waste heat boiler wherein the thermal energy contained in the flue gases is converted into steam. This steam can in turn be used for electricity production purposes, combustion air preheating, industrial processes, hot water supply etc.
  • the optimum amount of combustible material to be present in the incineration zone is determined.
  • Solid combustible material is fed to the incineration reactor and transported to and through the incineration zone at a transport speed by means of the carrier.
  • the amount of combustible material in the incineration zone correspond to
  • the speed of the charging of the combustible material to the incineration zone or the feeding of the combustible material through the incineration zone is adjusted to minimise ⁇ P.
  • the speed of the feeding of the combustible material is adjusted to ⁇ P/v 2 pa , wherein v pa is the flow rate of the primary combustion air.
  • ⁇ P/v 2 pa is measured at predetermined time intervals and averaged as a function of time or ⁇ P/v 2 pa is filtered.
  • the primary air flow rate in each individual combustion zone is measured by determining a pressure of the primary air pressure at the inlet and outlet of the air supply device, determining the pressure difference between the inlet and outlet, calculating the flow rate corresponding to the measured pressure difference.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Incineration Of Waste (AREA)
  • Processing Of Solid Wastes (AREA)
  • Treatment Of Sludge (AREA)
  • Gasification And Melting Of Waste (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Solid-Fuel Combustion (AREA)

Claims (9)

  1. Procédé destiné à incinérer une matière combustible solide dans une zone d'incinération d'un incinérateur, ce procédé comprenant les étapes consistant à déterminer une quantité optimal de matière qui doit être présente dans la zone d'incinération, amener une matière combustible jusqu'à l'incinérateur, transporter la matière combustible vers et à travers la zone d'incinération à une vitesse de transport au moyen d'un dispositif de transport de celle-ci, alimenter en air de combustion primaire la zone d'incinération avec un certain débit, par l'intermédiaire d'une entrée d'air située au-dessous du dispositif de transport, incinérer la matière combustible dans l'incinérateur pour produire des cendres et des gaz d'échappement, déterminer la quantité de matière combustible dans la zone d'incinération, ajuster la quantité de matière combustible dans la zone d'incinération par ajustement d'au moins une étape parmi l'étape consistant à charger dans, ou l'étape consistant à amener la matière combustible à travers la zone d'incinération afin de maintenir sensiblement constante la quantité de matière dans la zone d'incinération, dans lequel l'étape consistant à ajuster la quantité de matière combustible dans la zone d'incinération comprend les étapes consistant à :
    - mesurer une pression de gaz globale Pi dans la zone d'incinération,
    - mesurer une pression de gaz primaire au-dessous du dispositif de transport pour la matière combustible Pg,
    - déterminer une différence de pression au-dessus du dispositif de transport ΔPr = Pi _ Pg.
    - déterminer ΔPr0 qui est la différence de pression au-dessus du dispositif de transport qui correspond à la quantité optimale de matière dans la zone d'incinération,
    - calculer la différence ΔP entre ΔPr0 et ΔPr,
    - minimiser ΔP par ajustement d'au moins une parmi la vitesse du chargement de la matière combustible dans la zone d'incinération ou de l'amenée de la matière combustible à travers la zone d'incinération,
    caractérisé en ce que
    - la zone d'incinération est divisée en une pluralité de zones de combustion individuelles, l'air primaire alimentant chaque zone de combustion individuelle par l'intermédiaire d'un dispositif d'alimentation en air séparé et étant ajusté pour chaque zone de combustion individuelle.
    - la vitesse de ladite amenée ou dudit chargement de matière combustible est ajustée sur la base de ΔP/v2 pa, où vpa est le débit de l'air de combustion primaire, et
    - le débit de l'air de combustion primaire dans chaque zone individuelle est mesuré grâce aux étapes consistant à :
    - déterminer une pression de l'air de combustion primaire au niveau d'une entrée à travers laquelle on alimente en air de combustion primaire le dispositif d'alimentation en air de combustion primaire,
    - déterminer une pression de l'air de combustion primaire au niveau d'une sortie du dispositif d'alimentation en air de combustion primaire à travers laquelle l'air de combustion primaire alimente l'incinérateur,
    - déterminer la différence de pression entre l'entrée et la sortie du dispositif d'alimentation en air de combustion primaire,
    - calculer le débit correspondant à la différence de pression entre l'entrée et la sortie du dispositif d'alimentation en air de combustion primaire.
  2. Procédé selon la revendication 1, dans lequel ΔP/v2 pa est mesuré à des intervalles de temps prédéterminés et calculé sous forme de moyenne en fonction du temps ou ΔP/v2 pa est filtré.
  3. Dispositif destiné à incinérer de la matière combustible solide dans une zone d'incinération d'un réacteur de telle sorte qu'une quantité optimale de matière est présente dans la zone d'incinération, comprenant :
    - un incinérateur avec au moins une zone d'incinération destinée à faire brûler la matière combustible,
    - un dispositif de transport destiné à transporter la matière combustible et amener la matière combustible par l'intermédiaire de la ou chaque zone d'incinération,
    - un moyen destiné à alimenter en air de combustion au-dessous du dispositif de transport, et
    - un moyen destiné à ajuster la quantité de matière combustible dans la zone d'incinération, dans lequel le moyen destiné à ajuster la quantité de matière combustible dans la zone d'incinération comprend un moyen destiné à :
    - mesurer une pression de gaz globale Pi dans la zone d'incinération,
    - mesurer une pression de gaz primaire au-dessous du dispositif de transport pour la matière combustible Pg,
    - déterminer une différence de pression au-dessus du dispositif de transport ΔPr = Pi - Pg.
    - déterminer ΔPr0 qui est la différence de pression au-dessus du dispositif de transport qui correspond à la quantité optimale de matière dans la zone d'incinération,
    - calculer la différence ΔP entre ΔPr0 et ΔPr,
    - minimiser ΔP par ajustement d'au moins une parmi la vitesse du chargement de matière combustible dans la zone d'incinération ou de l'amenée de matière combustible à travers la zone d'incinération, caractérisé en ce que
    - chaque zone d'incinération est divisée en une pluralité de zones de combustion individuelles, le dispositif comprenant des dispositifs d'alimentation en air séparés pour alimenter en air primaire chaque zone de combustion individuelle et comprenant des moyens destinés à ajuster l'air primaire qui alimente chaque zone de combustion individuelle,
    - le dispositif comprend un moyen destiné à ajuster la vitesse de ladite amenée ou dudit chargement de matière combustible sur la base de ΔP/v2 pa, où vpa est le débit de l'air de combustion primaire, et
    - le dispositif comprend un moyen destiné à mesurer le débit de l'air de combustion primaire dans chaque zone individuelle, comprenant :
    - un moyen destiné à déterminer une pression de l'air de combustion primaire au niveau d'une entrée à travers laquelle on alimente en air de combustion primaire le dispositif d'alimentation en air de combustion primaire,
    - un moyen destiné à déterminer une pression de l'air de combustion primaire au niveau d'une sortie du dispositif d'alimentation en air de combustion primaire à travers lequel on alimente en air de combustion primaire l'incinérateur,
    - un moyen destiné à déterminer la différence de pression entre l'entrée et la sortie du dispositif d'alimentation en air de combustion primaire,
    - un moyen destiné à calculer le débit correspondant à la différence de pression entre l'entrée et la sortie du dispositif d'alimentation en air de combustion primaire.
  4. Dispositif selon la revendication 3, dans lequel le dispositif de transport pour la matière combustible comprend une pluralité d'éléments de grille individuels destinés à faire avancer la matière combustible à travers la zone d'incinération, un dispositif d'alimentation en air étant prévu au-dessous de chaque élément de grille.
  5. Dispositif selon la revendication 3 ou 4, dans lequel le dispositif de transport pour la matière combustible comprend une pluralité de premiers éléments de grille de combustion individuels, les premiers éléments de grille étant montés de façon coulissante dans une direction avant et arrière pour transporter les déchets d'une zone de combustion précédente à une zone de combustion suivante.
  6. Dispositif selon la revendication 5, dans lequel le système de grille de combustion comprend une pluralité de seconds éléments de grille, les premiers éléments de grille alternant avec les seconds éléments de grille, les seconds éléments de grille étant montés de telle sorte qu'ils peuvent être basculés pour augmenter l'intensité de la combustion.
  7. Dispositif selon la revendication 6, dans lequel le système de grille de combustion comprend entre le deuxième élément de grille et un premier élément de grille consécutif, un troisième élément de grille, le troisième élément de grille étant monté de façon fixe.
  8. Dispositif selon la revendication 7, dans lequel les premiers et deuxièmes éléments peuvent être commandés individuellement.
  9. Dispositif selon la revendication 8, dans lequel le dispositif comprend des moyens destinés à commander la vitesse des premiers et deuxièmes éléments de grille de manière continue.
EP00918617A 2000-04-21 2000-04-21 Procede d'incineration de matiere combustible solide Expired - Lifetime EP1274961B1 (fr)

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PCT/BE2000/000037 WO2001081827A1 (fr) 2000-04-21 2000-04-21 Procede d'incineration de matiere combustible solide

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EP1274961A1 EP1274961A1 (fr) 2003-01-15
EP1274961B1 true EP1274961B1 (fr) 2006-06-14

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EP (1) EP1274961B1 (fr)
CN (1) CN1217128C (fr)
AT (1) ATE330177T1 (fr)
AU (1) AU2000239507A1 (fr)
DE (1) DE60028833T2 (fr)
ES (1) ES2265927T3 (fr)
PT (1) PT1274961E (fr)
WO (1) WO2001081827A1 (fr)

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CN102235676B (zh) * 2010-04-30 2015-09-16 光大环保科技发展（北京）有限公司 机械炉排焚烧炉燃烧控制系统及控制方法
CN102865582A (zh) * 2012-09-04 2013-01-09 吕庆忠 一种可测量垃圾厚度的垃圾焚烧炉及其测量方法
BE1028929B1 (nl) 2020-12-22 2022-07-19 Indaver Nv Werkwijze en inrichting voor het verbranden van vast brandbaar materiaal en verkregen verbrandingsproducten
CN114736716B (zh) * 2022-04-21 2023-02-03 赣州市怡辰宏焰能源科技有限公司 一种链条气化炉

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BE758869A (fr) * 1969-12-19 1971-05-12 Carbonisation Entr Ceram Grille mecanique a gradins notamment pour fours d'incineration de residus urbains et industriels
JPS59129316A (ja) * 1983-01-08 1984-07-25 Kawasaki Heavy Ind Ltd ごみ焼却炉における給塵制御装置
JPH079288B2 (ja) * 1990-11-30 1995-02-01 株式会社日立製作所 固形燃焼装置の燃料供給制御方法
DE4215997C2 (de) 1992-05-13 1995-09-07 Noell Abfall & Energietech Verfahren zur Regelung der Müllmenge bzw. der Müllschicht auf Verbrennungsrosten
DE19820038C2 (de) * 1998-05-05 2000-03-23 Martin Umwelt & Energietech Verfahren zum Regeln der Feuerleistung von Verbrennungsanlagen

Also Published As

Publication number Publication date
PT1274961E (pt) 2006-10-31
DE60028833D1 (de) 2006-07-27
ATE330177T1 (de) 2006-07-15
CN1460167A (zh) 2003-12-03
EP1274961A1 (fr) 2003-01-15
ES2265927T3 (es) 2007-03-01
AU2000239507A1 (en) 2001-11-07
CN1217128C (zh) 2005-08-31
DE60028833T2 (de) 2007-01-04
WO2001081827A1 (fr) 2001-11-01

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