EP0312818A2 - Procédé et dispositif d'incinération d'un combustible inhomogène - Google Patents

Procédé et dispositif d'incinération d'un combustible inhomogène Download PDF

Info

Publication number
EP0312818A2
EP0312818A2 EP88116157A EP88116157A EP0312818A2 EP 0312818 A2 EP0312818 A2 EP 0312818A2 EP 88116157 A EP88116157 A EP 88116157A EP 88116157 A EP88116157 A EP 88116157A EP 0312818 A2 EP0312818 A2 EP 0312818A2
Authority
EP
European Patent Office
Prior art keywords
air
zone
grate
firing
zones
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.)
Withdrawn
Application number
EP88116157A
Other languages
German (de)
English (en)
Other versions
EP0312818A3 (fr
Inventor
Johann Künstler
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.)
Kuepat AG
Original Assignee
Kuepat AG
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 Kuepat AG filed Critical Kuepat AG
Publication of EP0312818A2 publication Critical patent/EP0312818A2/fr
Publication of EP0312818A3 publication Critical patent/EP0312818A3/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • F23G2207/103—Arrangement of sensing devices for oxygen
    • 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
    • F23G2207/10—Arrangement of sensing devices
    • F23G2207/105—Arrangement of sensing devices for NOx
    • 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

Definitions

  • the invention relates to a method for burning inhomogeneous combustible material, in particular garbage, the combustible material being continuously transported from a sliding grate from an addition point to a slag failure point and being continuously shifted.
  • a device for carrying out such a method is described, for example, in CH Patents 559 878 and 567 230.
  • the present invention makes it possible for the first time to avoid these disadvantages by reducing both the downwind supply and the secondary air supply successive grate or combustion chamber zones can be individually adapted to the local conditions in such a way that optimal combustion and thus a low-emission exhaust gas flow can be achieved with the lowest possible energy consumption.
  • the method according to the invention is characterized in that the firing material on the sliding grate passes through several successive firing zones in the direction of flow, each zone being supplied with a separate under-air flow from below through the grate on the one hand and a separate secondary air flow over the grate on the other such that increasingly successively volatile parts of the combustible material are converted into gas in successive firing zones, and the gas generated in each zone is expelled from the firing material bed by means of the sub-air, mixed there with secondary air and then burned, while the remaining solid carbon is burned in a last burnout zone.
  • zone-by-zone separate air supply it is easily possible to adapt the total air to be supplied to each zone as well as the division of this total air into underwind and secondary air to the fuel or fuel gas condition passing through the respective zone so that the right amount of air is always available at the right place stands.
  • This is expediently done by measuring one or more parameters, such as temperature, oxygen content, CO and NO content, in the gas formation area, in the gas / air mixing area and in the combustion area of each of the five combustion zones, for example, and in that the measurement signals are used to optimize the Gas formation and combustion in corresponding control signals for the air allocation to the individual firing zones as well can also be converted for air distribution in downwind and secondary air in each firing zone.
  • the device for carrying out this method is characterized in that in each of a plurality of firing zones which follow one another in the firing material conveying direction, both under the sliding grate and over the latter, an underwind or a secondary air supply line opens, which pair of lines connects to a dividing device for division into underwind and Secondary air and this is connected via a zone air line to a common zone air distribution device, which is fed by an overall air line, and that parameter measuring points are provided above each zone section of the grate, which are controlled by computers both for regulating the division of the zone air into underwind and secondary air and for regulating the Total air distribution to the zones are connected to the distribution device and the distribution device.
  • 1 is the sliding grate of a waste incinerator 1 which is fed via a feed funnel 2 and whose combustion chamber 3 is connected to the chimney (not shown) via a flue gas extractor 4 is, while 5 denotes the slag outlet.
  • a flue gas extractor 4 is the flue gas extractor 4
  • 5 denotes the slag outlet.
  • five successive chambers 6a-e which are open towards the grate, are formed in the longitudinal direction thereof, while the side boundary of the combustion chamber 3 is formed over the grate 1 by plate walls 7 provided with openings.
  • a separate underwind pipe 9, which is provided with a control valve 8, is connected to each of the chambers 6.
  • each of the sections 7a-e of the plate walls 7 aligned with the chambers 6 above the grate 1 are connected to a separate secondary air line 11 having a control valve 10.
  • the chambers 6a-e and the plate wall sections 7a-e assigned to them thus form five successive zones in the firebox 3 with separate underwind and secondary air supply.
  • the downwind line 9 and the secondary air line 11 of each zone are connected via a supply line 13 having a control valve 12 to a main air line 14, which is fed by an air pump 15.
  • the combustion chamber 3 is divided into the plate wall sections 7a-e corresponding firing zones, to which on the one hand through the chambers 6 through the grate 1 underwind and on the other hand through the openings of the plate wall sections 7a-e on both sides, secondary air, hereinafter referred to as plate air, is supplied.
  • a branch line 16 is connected to line 14, which leads via a control valve 17 to a ring of nozzles 18 through which additional secondary air, hereinafter referred to as nozzle air, can be supplied at the transition of the combustion chamber 3 into the flue gas exhaust 4.
  • the furnace is degassed and gasified when the furnace is operated in the firing bed; the resulting gases are removed from the Combustion material expelled upwards, mixed there with the plate air and then burned, after which the resulting gases are led away through the flue gas extractor 4.
  • the combustion chamber 3 By dividing the combustion chamber 3 into several zones provided with separately controllable air supply, it is possible to supply practically at each longitudinal point of the grate 1 that and just that amount of air that is necessary in order to achieve the optimal quality of the material, which changes over time and location To meet combustion.
  • the air allocation to the individual combustion zones and the air distribution in the zones underwind and plate air (and possibly jet air) can be controlled by a predetermined control program.
  • the individual chambers 6 are always supplied with only enough underwind that this is sufficient to expel the gases generated in the successive zones only straight upwards from the firing bed, which in practice means that the first chamber 6 in the firing material flow direction least and the last chamber 6 is to be supplied with the most downwind, whereas conversely the first zone and the last least (or no) plate air are to be supplied.
  • the air supply in the individual zones must also be adapted to the temporally and locally changing firing conditions.
  • various parameters which are decisive for gas formation and combustion or the pollutant content are continuously measured in the successive firing zones, the results of the measurements being provided by suitable computers for generating control signals the control valves are supplied. 1 and 2, corresponding measuring probes are indicated schematically at a, b and c.
  • FIG. 3 shows the diagram of such a waste incinerator, the furnace being divided into five firing zones, as in the example according to FIGS. 1 and 2.
  • Each firing zone is assigned a grate section 20 on which the firing material forms a gasification section 21;
  • Above the latter is the gas / air mixing section 22, which merges upwards into the actual combustion section 23, which in turn merges into the flue gas outlet 24.
  • the air lines or control valves leading to each combustion zone correspond to those of the example according to FIGS. 1 and 2 and are provided with the same reference symbols.
  • the control valves 12 on the one hand and the control valves 8, 10 and 17 on the other hand are each combined to form a control device.
  • measuring probes a, b, c, d and e are provided, by means of which the parameters of interest, for example the local temperature and the content of O2, CO and NOx, are measured .
  • the measurement signals are transmitted on the one hand to a computer 25 for determining the optimal allocation of the air to the individual zones and on the other hand to a computer 26 for determining the division of the air to be supplied to the respective zones into underwind, plate air and jet air.
  • the corresponding control signals from the two computers arrive at the assigned control devices.
  • a regulation of the air supply to the different zones is thus achieved, which changes every change in the fuel composition as well as every local change in the gas formation and Combustion behavior can follow and thus not only prevent local underheating or overheating in the firing material and strong blowing out of flying dust, but also ensure a perfect mixture of gas and the right amount of air and correspondingly optimal combustion in every zone and thus the pollutant content of the flue gases allowed to keep at the lowest possible value.
  • a division of the firebox 3 into five successive firing zones was provided as particularly expedient; depending on the size of the furnace or the type of firing material, fewer, e.g. only three or four or even more e.g. six such firing zones provided with separately controlled air supply can be provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)
  • Feeding And Controlling Fuel (AREA)
EP88116157A 1987-10-23 1988-09-30 Procédé et dispositif d'incinération d'un combustible inhomogène Withdrawn EP0312818A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4153/87A CH673149A5 (fr) 1987-10-23 1987-10-23
CH4153/87 1987-10-23

Publications (2)

Publication Number Publication Date
EP0312818A2 true EP0312818A2 (fr) 1989-04-26
EP0312818A3 EP0312818A3 (fr) 1990-04-04

Family

ID=4270799

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88116157A Withdrawn EP0312818A3 (fr) 1987-10-23 1988-09-30 Procédé et dispositif d'incinération d'un combustible inhomogène

Country Status (5)

Country Link
EP (1) EP0312818A3 (fr)
JP (1) JPH01134110A (fr)
KR (1) KR890007022A (fr)
CH (1) CH673149A5 (fr)
NO (1) NO884702L (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0750161A1 (fr) * 1995-06-21 1996-12-27 Ansaldo Volund A/S Méthode et dispositif pour la manufacture et la combustion d'un produit composé combustible
EP0971169A4 (fr) * 1997-03-26 2000-04-12 Nippon Kokan Kk Procede de reglage de la combustion et dispositif pour incinerateurs de dechets
WO2001061297A3 (fr) * 2000-02-16 2001-11-15 Invest Y Cooperacion Ind De An Systeme permettant d'optimiser des procedes de combustion au moyen de mesures directes prises a l'interieur du foyer
EP1235029A1 (fr) * 2000-03-16 2002-08-28 BBP Environment GmbH Procédé d'incinération utilisant une grille et adapté à tout type de combustible
WO2005038345A3 (fr) * 2003-10-11 2006-06-22 Karlsruhe Forschzent Dispositif et procede pour optimiser le degre de combustion des gaz d'echappement dans des installations de combustion
EP1726877A1 (fr) * 2002-04-03 2006-11-29 Keppel Seghers Holdings Pte Ltd Méthode et appareillage pour contrôler l'injection d'air primaire et d'air secondaire d'un incinérateur de déchets
ITTO20130443A1 (it) * 2013-05-31 2014-12-01 Tm E S P A Termomeccanica Ecologi A Sistema automatico di controllo della combustione per un impianto di termovalorizzazione di rifiuti.

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04324015A (ja) * 1991-04-24 1992-11-13 Kubota Corp 焼却炉におけるｃｏ制御方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH520897A (de) * 1971-03-29 1972-03-31 Von Roll Ag Verfahren zur automatischen Steuerung der Verbrennungsluft in Müllverbrennungsanlagen und Müllverbrennungsanlagen zur Durchführung des Verfahrens
CH567230A5 (fr) * 1973-10-08 1975-09-30 Kuenstler Hans
WO1985001096A1 (fr) * 1983-08-31 1985-03-14 Egon Krogemann Installation de combustion de combustibles biologiques
DE3537945A1 (de) * 1985-10-25 1987-04-30 Babcock Anlagen Ag Verfahren zur verbrennung von abfall
BE904557A (nl) * 1986-04-07 1986-07-31 Vyncke N V Traproostervuurhaard, met gekoeld traprooster en modulair warmtereflecterend gewelf, voor het verbranden van alle brandstoffen.

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0750161A1 (fr) * 1995-06-21 1996-12-27 Ansaldo Volund A/S Méthode et dispositif pour la manufacture et la combustion d'un produit composé combustible
EP0971169A4 (fr) * 1997-03-26 2000-04-12 Nippon Kokan Kk Procede de reglage de la combustion et dispositif pour incinerateurs de dechets
EP1382906A3 (fr) * 1997-03-26 2004-01-28 Nkk Corporation Procédé de réglage et installation d'incinération de déchets
WO2001061297A3 (fr) * 2000-02-16 2001-11-15 Invest Y Cooperacion Ind De An Systeme permettant d'optimiser des procedes de combustion au moyen de mesures directes prises a l'interieur du foyer
ES2166312A1 (es) * 2000-02-16 2002-04-01 Invest Y Cooperacion Ind De An Sistema para optimizacion de procesos de combustion mediante medidas directas en el interior del hogar.
EP1235029A1 (fr) * 2000-03-16 2002-08-28 BBP Environment GmbH Procédé d'incinération utilisant une grille et adapté à tout type de combustible
EP1726877A1 (fr) * 2002-04-03 2006-11-29 Keppel Seghers Holdings Pte Ltd Méthode et appareillage pour contrôler l'injection d'air primaire et d'air secondaire d'un incinérateur de déchets
WO2005038345A3 (fr) * 2003-10-11 2006-06-22 Karlsruhe Forschzent Dispositif et procede pour optimiser le degre de combustion des gaz d'echappement dans des installations de combustion
US8048381B2 (en) 2003-10-11 2011-11-01 Forschungszentrum Karlsruhe Gmbh Apparatus and method for optimizing exhaust gas burn out in combustion plants
ITTO20130443A1 (it) * 2013-05-31 2014-12-01 Tm E S P A Termomeccanica Ecologi A Sistema automatico di controllo della combustione per un impianto di termovalorizzazione di rifiuti.
WO2014191865A1 (fr) * 2013-05-31 2014-12-04 Tm.E. S.P.A. Termomeccanica Ecologia Système de commande automatique de combustion de déchets dans une installation de production d'énergie

Also Published As

Publication number Publication date
KR890007022A (ko) 1989-06-17
NO884702D0 (no) 1988-10-21
CH673149A5 (fr) 1990-02-15
NO884702L (no) 1989-04-24
EP0312818A3 (fr) 1990-04-04
JPH01134110A (ja) 1989-05-26

Similar Documents

Publication Publication Date Title
EP2128523B1 (fr) Installation de combustion et procédé de réglage d'une installation de combustion
EP1698827B1 (fr) Procédé pour brûler des combustibles et plus particulièrement des déchets
EP0661500B1 (fr) Procédé de réglage d'un ou de plusieurs paramètres de la combustion sur une grille d'un foyer
DE2929056C2 (fr)
DE4217070C5 (de) Verbrennungsvorrichtung und -verfahren
DE1900816B2 (de) Abfall Verascher
DE2633006A1 (de) Verfahren zur entfernung von stickoxiden
EP0111874A1 (fr) Installation pour brûler la poussière de charbon
DE69009121T2 (de) Verfahren zur Verbrennungsregelung in einer Feuerung.
DE2604409A1 (de) Verfahren und verbrennungsofen zur verbrennung von abfaellen
DE2344094A1 (de) Verfahren zur wirbelschichtkalcinierung von zementrohmehl
EP0312818A2 (fr) Procédé et dispositif d'incinération d'un combustible inhomogène
DE3238546A1 (de) Verfahren zum heizen eines ofens
DE2750672A1 (de) Waermeerzeugungsverfahren und vorrichtung zu seiner durchfuehrung
EP2691701B1 (fr) Procédé d'optimisation de la combustion totale des gaz d'échappement d'une installation de combustion
DE1252850B (de) Verfahren zum Brennen und Kuehlen von koernigem Gut, z. B. von Kalkstein, und Ofen zur Durchfuehrung des Verfahrens
DE3782391T2 (de) Verfahren bei der wirbelschichtverbrennung.
EP1489355A1 (fr) Procédé et appareil pour réguler la puissance thermique d'un incinérateur
DE4219231C1 (de) Verfahren zur Verbrennung von Abfall und Abfallverbrennungsanlage
EP0139025B1 (fr) Four à cuve annulaire
CH642733A5 (de) Staubfeuerungsverfahren fuer einen prozessofen.
DE1157133B (de) Verfahren zum Brennen und Kuehlen von koernigem Gut, z.B. von Kalkstein im Schachtofen, und Ofen zur Ausuebung des Verfahrens
DE2711883A1 (de) Regenerativkoksofenbatterie
WO1985001096A1 (fr) Installation de combustion de combustibles biologiques
AT522059B1 (de) Verfahren und Vorrichtung zur Herstellung von Kohle

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 DE ES FR 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 DE ES FR NL SE

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

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19900412