EP0173628B1 - Incinerator for incinerating refuse - Google Patents

Incinerator for incinerating refuse Download PDF

Info

Publication number
EP0173628B1
EP0173628B1 EP85401691A EP85401691A EP0173628B1 EP 0173628 B1 EP0173628 B1 EP 0173628B1 EP 85401691 A EP85401691 A EP 85401691A EP 85401691 A EP85401691 A EP 85401691A EP 0173628 B1 EP0173628 B1 EP 0173628B1
Authority
EP
European Patent Office
Prior art keywords
combustion chamber
post
nozzles
air
fume duct
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP85401691A
Other languages
German (de)
French (fr)
Other versions
EP0173628A3 (en
EP0173628A2 (en
Inventor
Christian Gérard Huret
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 AT85401691T priority Critical patent/ATE46957T1/en
Publication of EP0173628A2 publication Critical patent/EP0173628A2/en
Publication of EP0173628A3 publication Critical patent/EP0173628A3/en
Application granted granted Critical
Publication of EP0173628B1 publication Critical patent/EP0173628B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23LSUPPLYING 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
    • F23L9/00Passages or apertures for delivering secondary air for completing combustion of fuel 
    • F23L9/04Passages or apertures for delivering secondary air for completing combustion of fuel  by discharging the air beyond the fire, i.e. nearer the smoke outlet
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/027Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage

Definitions

  • the fuel consumption is significantly reduced, the dust entrainment is low and the fumes are little or not colored.
  • the combustion time is however significantly longer than in the first mode.
  • US-A-4,213,404 describes an oven in which the destruction of waste is carried out successively using the two above-mentioned operating modes.
  • the waste introduced into the combustion chamber of this furnace is first subjected to a pyrolysis carried out at a relatively low temperature in the presence of a small quantity of primary air, then to a combustion carried out at a high temperature in the presence of excess primary air.
  • US-A-3,664,277 describes an oven for the incineration of waste, comprising a combustion chamber comprising a door for loading the waste and means for introducing primary air therein, a flue duct communicating with the combustion chamber and comprising means for preventing the passage of dust entrained by the fumes as well as means for supplying secondary air, and a post-combustion chamber connected to the combustion chamber via the smoke duct, the post-combustion chamber comprising at least one burner, a chimney provided at one of its ends, and nozzles for tangentially introducing a stream of tertiary combustion air.
  • the present invention proposes to remedy the drawbacks of the aforementioned ovens and, to do this, it relates to an incineration oven having a hearth with a horizontal axis of the type described in US-A-3,664,277 and which is characterized in that the nozzles are distributed along a line parallel to the main axis of the post-combustion chamber, and in that another nozzle is provided for introducing tertiary air into the post-combustion chamber combustion, this other nozzle opening axially at the end of the post-combustion chamber which is opposite the chimney.
  • the gases and the fumes in the post-combustion chamber are entrained in a helical movement, which allows them to sweep the entire volume of said chamber and to stay long enough in the latter for be totally burned.
  • the incineration furnace according to the present invention is further characterized by the arrangements forming the subject of claims 2 to 6 appended.
  • the incineration oven that can be seen in the drawings comprises a combustion chamber 1 furnished with insulating and refractory materials.
  • the combustion chamber is equipped with a burner 2 used to initiate or maintain the combustion of waste and nozzles 3 allowing the injection of primary air. It can be of parallelepipedic or cylindrical shape, its major axis preferably being horizontal.
  • a sealed loading door 4 allows waste to be introduced into the hearth 5.
  • the combustion fumes 6 are evacuated via a smoke duct 7 which is formed in the wall opposite the door loading 4 and into which the secondary air is injected by a series of nozzles 8 oriented so that the secondary air jet forms an obtuse angle with the fumes.
  • the smoke duct 7 connects the combustion chamber 1 to a post-combustion chamber 9 which is cylindrical in shape and is lined with insulating and refractory materials.
  • the post-combustion chamber is of large volume so that the fumes stay there long enough to be completely oxidized and decomposed. Its volume is calculated so that the minimum residence time is 0.6 seconds.
  • At least one burner 11 is provided to bring or maintain the post-combustion chamber at a temperature sufficient to completely oxidize the fumes, destroy all the combustible particles and crack the organic molecules. This burner directs its flame tangentially into the post-combustion chamber.
  • Tertiary air intended to provide the necessary oxygen supplement and to entrain the fumes in a helical movement is injected into the post-combustion chamber 9 on the one hand by a series of nozzles 10 arranged along a generator and opening tangentially in the chamber 9, and on the other hand by a nozzle 12 opening axially at one of the ends of the post-combustion chamber.
  • the fumes entrained in the post-combustion chamber in a helical movement are directed to a chimney 13 provided at the other end of the post-combustion chamber. It will be noted here that the flow rate of the tertiary air injected through the nozzles 10 and 12 is adjustable.
  • the inclination of the main axis of the post-combustion chamber can be adjusted since the latter constitutes, with the smoke duct 7, an assembly mounted to pivot around the axis of said duct.
  • the furnace according to the invention makes it possible to incinerate waste in two phases, the latter being subjected in the combustion chamber 1, first of all to a pyrolysis carried out at a relatively low temperature in the presence of a small amount of primary air, then combustion performed at a high temperature in the presence of an excess of primary air.
  • the nozzles 8 projecting the secondary air prevent the dust formed in the combustion chamber 1 from going into the post-combustion chamber when the primary air flow is increased.
  • the secondary air is injected against the smoke: the directions of circulation of the secondary air and the smoke respectively in the smoke duct 7 form an obtuse angle preferably between 100 ° and 140 °.
  • the flow and speed of the secondary air and the repetition of the nozzles 8 are such that the air curtain thus created involves the entire section of the smoke duct.
  • the fumes leaving the combustion chamber 1 penetrate tangentially into the post-combustion chamber 9 which is lined with insulating and refractory materials and which is preferably produced with a large volume. They go towards the chimney 13, in a helical movement under the joint action of the tertiary air injected by the nozzles 10 and the nozzle 12 and the burner flame 11 which is oriented tangentially in the post-combustion chamber.
  • the incineration oven according to the invention is particularly suitable for the destruction without odors, visible smoke or nuisance, of all combustible waste and, in particular, household, hospital or industrial waste.

Landscapes

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

Abstract

1. An incinerator for incinerating refuse, comprising a combustion chamber (1) with a door (4) for charging the refuse and means for feeding primary air therein, a fume duct (7) in communication with the combustion chamber (1) and including means for preventing the passage of the dust entrained by the fumes as well as means for delivering secondary air, and a post-combustion chamber (9) connected to the combustion chamber (1) through the fume duct (7), the post-combustion chamber (9) including at least one burner (11), a chimney (13) provided at one end thereof, and nozzles (10) for tangentially feeding a tertiary combustion air flow, characterized in that the nozzles (10) are distributed along a line parallel to the major axis of the post-combustion chamber (9), and in that a further nozzle (12) is provided for feeding tertiary air in the postcombustion chamber (9), said further nozzle opening axially at the end of the post-combustion chamber (9) which is opposite to the chimney (13).

Description

On connaît actuellement des fours d'incinération fonctionnant, les uns à haute température avec un important excès d'air comburant, et les autres par effet pyrolytique, c'est-à-dire à une température relativement basse et avec une quantité restreinte d'air comburant.Currently operating incineration furnaces are known, some at high temperature with a large excess of combustion air, and others by pyrolytic effect, that is to say at a relatively low temperature and with a limited amount of combustion air.

Dans le premier mode de fonctionnement, la destruction des déchets est très rapide et complète mais au prix d'une consommation élevée de combustible d'appoint. Il se produit en outre des envolées de poussières souvent accompagnées de fumées colorées lors de la destruction de déchets de pouvoir calorifique inférieur (PCI) élevé.In the first operating mode, the destruction of the waste is very rapid and complete, but at the cost of a high consumption of auxiliary fuel. There is also a surge of dust, often accompanied by colored smoke, during the destruction of wastes of low calorific value (PCI).

Dans le second mode de fonctionnement, la consommation de combustible est sensiblement réduite, l'entraînement de poussières est faible et les fumées sont peu ou pas colorées. La durée de combustion est toutefois sensiblement plus longue que dans le premier mode. En outre, il subsiste parfois des imbrûlés dus à la température de combustion insuffisante.In the second operating mode, the fuel consumption is significantly reduced, the dust entrainment is low and the fumes are little or not colored. The combustion time is however significantly longer than in the first mode. In addition, there are sometimes unburnt residues due to the insufficient combustion temperature.

US-A-4 213 404 décrit un four dans lequel la destruction des déchets est réalisée en utilisant successivement les deux modes de fonctionnement précités. Les déchets introduits dans la chambre de combustion de ce four sont d'abord soumis à une pyrolyse réalisée à une température relativement basse en présence d'une faible quantité d'air primaire, puis à une combustion réalisée à une température élevée en présence d'un excès d'air primaire.US-A-4,213,404 describes an oven in which the destruction of waste is carried out successively using the two above-mentioned operating modes. The waste introduced into the combustion chamber of this furnace is first subjected to a pyrolysis carried out at a relatively low temperature in the presence of a small quantity of primary air, then to a combustion carried out at a high temperature in the presence of excess primary air.

Après introduction des déchets et allumage dans la partie supérieure du four, alors que les matières volatiles et facilement combustibles sont encore abondantes, la combustion a lieu par effet pyrolytique à une température relativement basse et en présence d'une faible quantité d'air primaire. Puis, lorsque les déchets progressent par gravité dans la partie inférieure du four, la combustion a lieu à haute température, une quantité suffisante d'air primaire étant injectée pour l'activer. Ainsi, tout en faisant faire des économies de combustible grâce à l'effet pyrolytique, ce four permet, en fin de cycle, une destruction totale et rapide de toutes les matières combustibles.After introduction of the waste and ignition in the upper part of the oven, while volatile and easily combustible materials are still abundant, combustion takes place by pyrolytic effect at a relatively low temperature and in the presence of a small amount of primary air. Then, when the waste progresses by gravity in the lower part of the oven, combustion takes place at high temperature, a sufficient quantity of primary air being injected to activate it. Thus, while saving fuel thanks to the pyrolytic effect, this oven allows, at the end of the cycle, total and rapid destruction of all combustible materials.

Ce fonctionnement utilisant la progression des déchets par gravité ne peut toutefois se dérouler que dans un four ayant un foyer à axe vertical et dans lequel les déchets sont introduits en partie supérieure, ce qui nécessite une implantation dans des locaux de relativement grande hauteur et des moyens pour élever les déchets jusqu'à l'orifice de chargement.This operation using the progression of waste by gravity can however only take place in an oven having a hearth with a vertical axis and into which the waste is introduced in the upper part, which requires installation in relatively tall premises and means to raise the waste to the loading port.

Par ailleurs, US-A-3 664 277 décrit un four pour l'incinération de déchets, comprenant une chambre de combustion comportant une porte pour le chargement des déchets et des moyens pour y introduire de l'air primaire, une gaine de fumées communiquant avec la chambre de combustion et comportant des moyens pour empêcher le passage des poussières entraînées par les fumées ainsi que des moyens pour délivrer de l'air secondaire, et une chambre de post-combustion reliée à la chambre de combustion par l'intermédiaire de la gaine de fumées, la chambre de post-combustion comportant au moins un brûleur, une cheminée prévue à l'une de ses extrémités, et des buses pour y introduire tangentiellement un courant d'air tertiaire de combustion.Furthermore, US-A-3,664,277 describes an oven for the incineration of waste, comprising a combustion chamber comprising a door for loading the waste and means for introducing primary air therein, a flue duct communicating with the combustion chamber and comprising means for preventing the passage of dust entrained by the fumes as well as means for supplying secondary air, and a post-combustion chamber connected to the combustion chamber via the smoke duct, the post-combustion chamber comprising at least one burner, a chimney provided at one of its ends, and nozzles for tangentially introducing a stream of tertiary combustion air.

Dans ce four, l'air tertiaire est introduit par deux buses diamétralement opposées, débouchant tangentiellement à la partie supérieure de la chambre de post-combustion. Or les fumées qui sortent de la gaine de fumées ont tendance à se rendre directement dans la cheminée et à ne pas brûler en totalité.In this oven, tertiary air is introduced by two diametrically opposite nozzles, opening tangentially to the upper part of the post-combustion chamber. However, the fumes leaving the flue tend to go directly into the chimney and not to burn completely.

La présente invention se propose de remédier aux inconvénients des fours précités et, pour ce faire, elle a pour objet un four d'incinération ayant un foyer à axe horizontal du type de celui décrit dans US-A-3 664 277 et qui se caractérise en ce que les buses sont réparties le long d'une ligne parallèle à l'axe principal de la chambre de post-combustion, et en ce qu'une autre buse est prévue pour introduire de l'air tertiaire dans la chambre de post-combustion, cette autre buse débouchant axialement à l'extrémité de la chambre de post-combustion qui est à l'opposé de la cheminée.The present invention proposes to remedy the drawbacks of the aforementioned ovens and, to do this, it relates to an incineration oven having a hearth with a horizontal axis of the type described in US-A-3,664,277 and which is characterized in that the nozzles are distributed along a line parallel to the main axis of the post-combustion chamber, and in that another nozzle is provided for introducing tertiary air into the post-combustion chamber combustion, this other nozzle opening axially at the end of the post-combustion chamber which is opposite the chimney.

Grâce à cet ensemble de dispositions, les gaz et les fumées se trouvant dans la chambre de post-combustion sont entraînés suivant un mouvement hélicoïdal, ce qui leur permet de balayer la totalité du volume de ladite chambre et de séjourner suffisamment longtemps dans cette dernière pour être totalement brûlés.Thanks to this set of arrangements, the gases and the fumes in the post-combustion chamber are entrained in a helical movement, which allows them to sweep the entire volume of said chamber and to stay long enough in the latter for be totally burned.

Le four d'incinération selon la présente invention se caractérise en outre par les dispositions faisant l'objet des revendications 2 à 6 annexées.The incineration furnace according to the present invention is further characterized by the arrangements forming the subject of claims 2 to 6 appended.

La description sera donnée ci-après en référence au dessin annexé dans lequel:

  • - la figure 1 est une coupe longitudinale schématique d'un four d'incinération conforme à l'invention, et
  • - la figure 2 est une vue de face schématique du four visible sur la figure 1, la chambre de post- combustion étant représentée en traits pleins dans sa position verticale et en traits mixtes dans sa position horizontale.
The description will be given below with reference to the attached drawing in which:
  • FIG. 1 is a schematic longitudinal section of an incineration oven according to the invention, and
  • - Figure 2 is a schematic front view of the oven visible in Figure 1, the post-combustion chamber being shown in solid lines in its vertical position and in phantom in its horizontal position.

Le four d'incinération que l'on peut voir sur les dessins comprend une chambre de combustion 1 garnie de matériaux isolants et réfractaires. La chambre de combustion est équipée d'un brûleur 2 servant à amorcer ou à entretenir la combustion des déchets et de buses 3 permettant l'injection d'air primaire. Elle peut être de forme parallélé- pipèdique ou cylindrique, son grand axe étant de préférence horizontal.The incineration oven that can be seen in the drawings comprises a combustion chamber 1 furnished with insulating and refractory materials. The combustion chamber is equipped with a burner 2 used to initiate or maintain the combustion of waste and nozzles 3 allowing the injection of primary air. It can be of parallelepipedic or cylindrical shape, its major axis preferably being horizontal.

Une porte de chargement hermétique 4 permet l'introduction des déchets dans le foyer 5.A sealed loading door 4 allows waste to be introduced into the hearth 5.

Les fumées de combustion 6 sont évacuées en passant par une gaine de fumées 7 qui est ménagée dans la paroi opposée à la porte de chargement 4 et dans laquelle l'air secondaire est injecté par une série de buses 8 orientées de façon à ce que le jet d'air secondaire forme un angle obtus avec les fumées.The combustion fumes 6 are evacuated via a smoke duct 7 which is formed in the wall opposite the door loading 4 and into which the secondary air is injected by a series of nozzles 8 oriented so that the secondary air jet forms an obtuse angle with the fumes.

La gaine de fumées 7 relie la chambre de combustion 1 à une chambre de post-combustion 9 qui est de forme cylindrique et est garnie de matériaux isolante et réfractaires. La chambre de post-combustion est de grand volume afin que les fumées y séjournent suffisamment longtemps pour être totalement oxydées et décomposées. Son volume est calculé pour que le temps de séjour minimum soit de 0,6 seconde.The smoke duct 7 connects the combustion chamber 1 to a post-combustion chamber 9 which is cylindrical in shape and is lined with insulating and refractory materials. The post-combustion chamber is of large volume so that the fumes stay there long enough to be completely oxidized and decomposed. Its volume is calculated so that the minimum residence time is 0.6 seconds.

Au moins un brûler 11 est prévu pour porter ou maintenir la chambre de post-combustion à une température suffisante pour oxyder totalement les fumées, détruire toutes les particules combustibles et craquer les molécules organiques. Ce brûler dirige sa flamme tangentiellement dans la chambre de post-combustion.At least one burner 11 is provided to bring or maintain the post-combustion chamber at a temperature sufficient to completely oxidize the fumes, destroy all the combustible particles and crack the organic molecules. This burner directs its flame tangentially into the post-combustion chamber.

De l'air tertiaire destiné à apporter le complément d'oxygène nécessaire et à entraîner les fumées suivant un mouvement hélicoïdal est injecté dans la chambre de post-combustion 9 d'une part par une série de buses 10 disposées le long d'une génératrice et débouchant tangentiellement dans la chambre 9, et d'autre part par une buse 12 débouchant axialement à l'une des extrémités de la chambre de post-combustion. Les fumées entraînées dans la chambre de post- combustion selon un mouvement hélicoïdal sont dirigées vers une cheminée 13 prévue à l'autre extrémité de la chambre de post-combustion. On notera ici que le débit de l'air tertiaire injecté par les buses 10 et 12 est réglable.Tertiary air intended to provide the necessary oxygen supplement and to entrain the fumes in a helical movement is injected into the post-combustion chamber 9 on the one hand by a series of nozzles 10 arranged along a generator and opening tangentially in the chamber 9, and on the other hand by a nozzle 12 opening axially at one of the ends of the post-combustion chamber. The fumes entrained in the post-combustion chamber in a helical movement are directed to a chimney 13 provided at the other end of the post-combustion chamber. It will be noted here that the flow rate of the tertiary air injected through the nozzles 10 and 12 is adjustable.

On notera par ailleurs que l'inclinaison de l'axe principal de la chambre de post-combustion peut être réglé puisque celle-ci constitue avec la gaine de fumées 7 un ensemble monté pivotant autour de l'axe de ladite gaine.It will also be noted that the inclination of the main axis of the post-combustion chamber can be adjusted since the latter constitutes, with the smoke duct 7, an assembly mounted to pivot around the axis of said duct.

Le four selon l'invention permet de réaliser l'incinération des déchets en deux phase, ceux-ci étant soumis dans la chambre de combustion 1, d'abord à une pyrolyse réalisée à une température relativement basse en présence d'une faible quantité d'air primaire, puis à une combustion réalisé à une température élevée en présence d'un excès d'air primaire.The furnace according to the invention makes it possible to incinerate waste in two phases, the latter being subjected in the combustion chamber 1, first of all to a pyrolysis carried out at a relatively low temperature in the presence of a small amount of primary air, then combustion performed at a high temperature in the presence of an excess of primary air.

Les buses 8 projetant l'air secondaire empêchent les poussières formées dans la chambre de combustion 1 de se diriger dans la chambre de post-combustion lorsque'on augmente le débit d'air primaire.The nozzles 8 projecting the secondary air prevent the dust formed in the combustion chamber 1 from going into the post-combustion chamber when the primary air flow is increased.

L'air secondaire est injecté à contre-courant des fumées: les directions de circulation respectivement de l'air secondaire et des fumées dans la gaine de fumées 7 forment un angle obtus compris de préférence entre 100° et 140°. De plus, le débit et la vitesse de l'air secondaire et la répétition des buses 8 sont tels que le rideau d'air ainsi créé intéresse toute la section de la gaine de fumées.The secondary air is injected against the smoke: the directions of circulation of the secondary air and the smoke respectively in the smoke duct 7 form an obtuse angle preferably between 100 ° and 140 °. In addition, the flow and speed of the secondary air and the repetition of the nozzles 8 are such that the air curtain thus created involves the entire section of the smoke duct.

Les fumées sortant de la chambre de combustion 1 pénètrent tangentiellement dans la chambre de post-combustion 9 qui est garnie de matériaux isolants et réfractaires et qui est réalisée de préférence avec un grand volume. Elles se dirigent vers la cheminée 13, selon un mouvement hélicoïdal sous l'action conjointe de l'air tertiaire injecté par les buses 10 et la buse 12 et de la flamme du brûler 11 qui est orientée tangentiellement dans la chambre de post-combustion.The fumes leaving the combustion chamber 1 penetrate tangentially into the post-combustion chamber 9 which is lined with insulating and refractory materials and which is preferably produced with a large volume. They go towards the chimney 13, in a helical movement under the joint action of the tertiary air injected by the nozzles 10 and the nozzle 12 and the burner flame 11 which is oriented tangentially in the post-combustion chamber.

Le four d'incinération selon l'invention est particulièrement adapté à la destruction sans odeurs, fumées visibles ou nuisances, de tous déchets combustibles et, en particulier, des déchets ménagers, hospitaliers ou industriels.The incineration oven according to the invention is particularly suitable for the destruction without odors, visible smoke or nuisance, of all combustible waste and, in particular, household, hospital or industrial waste.

Claims (6)

1. An incinerator for incinerating refuse, comprising a combustion chamber (1) with a door (4) for charging the refuse and means for feeding primary air therein, a fume duct (7) in communication with the combustion chamber (1) and including means for preventing the passage of the dust entrained by the fumes as well as means for delivering secondary air, and a post-combustion chamber (9) connected to the. combustion chamber (1) through the fume duct (7), the post- combustion chamber (9) including at least one burner (11), a chimney (13) provided at one end thereof, and nozzles (10) for tangentially feeding a tertiary combustion air flow, characterized in that the nozzles (10) are distributed along a line parallel to the major axis of the post-combustion chamber (9), and in that a further nozzle (12) is provided for feeding tertiary air in the postcombustion chamber (9), said further nozzle opening axially at the end of the post-combustion chamber (9) which is opposite to the chimney (13).
2. The incinerator according to claim 1, characterized in that the volume of the post-combustion chamber (9) is such that the staying time of the fumes therein is at least 0.6 second.
3. The incinerator according to claim 1 or 2, characterized in that the fume duct (7) and the burner (11) of the post-combustion chamber (9) open tangentially in the latter.
4. The incinerator according to any of the preceding claims, characterized in that the means for preventing the passage of the dust are formed by the means for delivering the secondary air, which in turn are formed by nozzles (8) opening in the fume duct (7), so as to inject secondary air therein in a counterflow manner with respect to the fume circulation direction, the number and spacing of the nozzles (8) being such that the whole section of the fume duct (7) is concerned by the secondary air seal formed.
5. The incinerator according to claim 4, characterized in that the respective circulation directions of the secondary air and fumes in the fume duct (7) form an obtuse angle ranging between 100° et 140° .
6. The incinerator according to any of the claims 1 to 5, characterized in that the post- combustion chamber (9) and fume duct (7) form a unit pivotally mounted around the axis of the
EP85401691A 1984-08-30 1985-08-28 Incinerator for incinerating refuse Expired EP0173628B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85401691T ATE46957T1 (en) 1984-08-30 1985-08-28 FURNACE FOR INCINERATION OF WASTE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8413625A FR2569826B1 (en) 1984-08-30 1984-08-30 INCINERATOR-PYROLYZER
FR8413625 1984-08-30

Publications (3)

Publication Number Publication Date
EP0173628A2 EP0173628A2 (en) 1986-03-05
EP0173628A3 EP0173628A3 (en) 1987-09-02
EP0173628B1 true EP0173628B1 (en) 1989-10-04

Family

ID=9307430

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85401691A Expired EP0173628B1 (en) 1984-08-30 1985-08-28 Incinerator for incinerating refuse

Country Status (4)

Country Link
EP (1) EP0173628B1 (en)
AT (1) ATE46957T1 (en)
DE (1) DE3573464D1 (en)
FR (1) FR2569826B1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02145685A (en) * 1988-05-13 1990-06-05 Heinz Hoelter Method and device for cooling coke oven ceiling and adjacent area and for keeping them clean
GB8900975D0 (en) * 1989-01-17 1989-03-08 Cbr Fabrications Limited Wood waste burners
DE3922060A1 (en) * 1989-07-05 1991-01-17 Norbert Harlander COMBUSTION SYSTEM FOR SOLID FUELS WITH SECOND BURNER
FR2649782B1 (en) * 1989-07-12 1992-11-27 Huret Christian INCINERATION PROCESS AND OVEN FOR ITS IMPLEMENTATION
US4941415A (en) * 1989-11-02 1990-07-17 Entech Corporation Municipal waste thermal oxidation system
NL8902749A (en) * 1989-11-07 1991-06-03 Leonardus Mathijs Marie Nevels METHOD FOR COMBUSTION OF VARIOUS WASTE MATERIAL, INCLUDING OVEN, AND UNIVERSAL WASTE COMBUSTION SYSTEM WITH NUMBER OF SUCH OVENS.
DE4007581A1 (en) * 1990-03-09 1991-09-12 Ackermann Tech Anlagen Masch Installation for treating wood waste before incineration - has screw conveyor to deliver waste to primary combustion chamber
AU736661B2 (en) * 1996-07-18 2001-08-02 Heinz Holter Process for treating waste gases produced in an organic waste incineration plant
US6439135B1 (en) * 1997-11-25 2002-08-27 International Environmental Technologies, Inc. Organic waste gasification processing and the production of alternative energy sources
US6938562B2 (en) 2002-05-17 2005-09-06 Senreq, Llc Apparatus for waste gasification

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2869487A (en) * 1955-08-25 1959-01-20 Silent Glow Oil Burner Corp Incinerators
FR2215678A2 (en) * 1965-12-01 1974-08-23 Lees Hall Et Sons Ltd Scrap metal recovery furnace - for burning off insulation from electric cables
US3664277A (en) * 1970-07-31 1972-05-23 Carborundum Co On-site incinerator
FR2213706A5 (en) * 1973-01-09 1974-08-02 Air Preheater
CH579237A5 (en) * 1973-06-01 1976-08-31 Barkhuus Per W Incinerator for domestic refuse - with preheated secondary air provided under pressure
US4213404A (en) * 1978-11-09 1980-07-22 Energy Alternatives, Inc. Solid refuse furnace

Also Published As

Publication number Publication date
ATE46957T1 (en) 1989-10-15
EP0173628A3 (en) 1987-09-02
FR2569826B1 (en) 1989-06-16
FR2569826A1 (en) 1986-03-07
DE3573464D1 (en) 1989-11-09
EP0173628A2 (en) 1986-03-05

Similar Documents

Publication Publication Date Title
JP2525726B2 (en) Waste incinerator for bulk garbage and liquids containing hydrocarbons
EP2147254B1 (en) Furnace
EP0173628B1 (en) Incinerator for incinerating refuse
CA2305222C (en) Incinerator for removing noxious substances
CN2581822Y (en) Refuse pyrolising incinerator
US20120118106A1 (en) Gas barrier
KR0181484B1 (en) Refuse furnace
JP3091181B2 (en) Incinerator
JP4618580B2 (en) Combustion furnace
JP2008025933A (en) Combustion furnace
FR2571474A1 (en) Solid fuel burner for a boiler
KR100564881B1 (en) Centrifugal combustion apparatus using air-flow in a furnace
FR2614392A1 (en) Improved crematorium furnace
GB2199929A (en) Afterburners
WO2002084178A1 (en) System and method for incinerating organic matter, especially animal meal and fat
JP3579774B2 (en) Burner heating type polymer incinerator
WO1996000266A1 (en) Method and device for thermally processing hospital waste and the like
JP3048298B2 (en) Incineration melting furnace
JP2515169B2 (en) Garbage incinerator
KR900001374Y1 (en) Waste tire combustion device in stove
FR2581735A1 (en) Heating apparatus operating with a solid fuel, such as a boiler in particular for a central heating installation
FR2566099A1 (en) Furnace for incinerating household and industrial waste
JPH07318023A (en) Structure of incinerator
EP0837920A1 (en) Method and device for thermally processing hospital waste and the like
KR960041852A (en) incinerator

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: A2

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19880123

17Q First examination report despatched

Effective date: 19880630

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

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

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 19891004

Ref country code: SE

Effective date: 19891004

Ref country code: AT

Effective date: 19891004

REF Corresponds to:

Ref document number: 46957

Country of ref document: AT

Date of ref document: 19891015

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3573464

Country of ref document: DE

Date of ref document: 19891109

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

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

Ref country code: LI

Effective date: 19900831

Ref country code: CH

Effective date: 19900831

Ref country code: LU

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

Effective date: 19900831

26N No opposition filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: GB

Payment date: 19920821

Year of fee payment: 8

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

Ref country code: DE

Payment date: 19920824

Year of fee payment: 8

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

Ref country code: FR

Payment date: 19920826

Year of fee payment: 8

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

Ref country code: NL

Payment date: 19920831

Year of fee payment: 8

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

Ref country code: BE

Payment date: 19920909

Year of fee payment: 8

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

Ref country code: GB

Effective date: 19930828

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

Ref country code: BE

Effective date: 19930831

BERE Be: lapsed

Owner name: HURET CHRISTIAN GERARD

Effective date: 19930831

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

Ref country code: NL

Effective date: 19940301

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19930828

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

Ref country code: FR

Effective date: 19940429

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

Ref country code: DE

Effective date: 19940503

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST