EP1318351A2 - Dispositif de combustion à combustible solide et procédé pour l'alimentation en air d' un tel dispositif - Google Patents

Dispositif de combustion à combustible solide et procédé pour l'alimentation en air d' un tel dispositif Download PDF

Info

Publication number
EP1318351A2
EP1318351A2 EP02026516A EP02026516A EP1318351A2 EP 1318351 A2 EP1318351 A2 EP 1318351A2 EP 02026516 A EP02026516 A EP 02026516A EP 02026516 A EP02026516 A EP 02026516A EP 1318351 A2 EP1318351 A2 EP 1318351A2
Authority
EP
European Patent Office
Prior art keywords
air
housing
rotating grate
air volume
grate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02026516A
Other languages
German (de)
English (en)
Other versions
EP1318351B1 (fr
EP1318351A3 (fr
Inventor
Fritz Dr.-Ing. Schoppe
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
Publication of EP1318351A2 publication Critical patent/EP1318351A2/fr
Publication of EP1318351A3 publication Critical patent/EP1318351A3/fr
Application granted granted Critical
Publication of EP1318351B1 publication Critical patent/EP1318351B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • 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
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B1/00—Combustion apparatus using only lump fuel
    • F23B1/16—Combustion apparatus using only lump fuel the combustion apparatus being modified according to the form of grate or other fuel support
    • F23B1/24—Combustion apparatus using only lump fuel the combustion apparatus being modified according to the form of grate or other fuel support using rotating grate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B5/00—Combustion apparatus with arrangements for burning uncombusted material from primary combustion
    • F23B5/04—Combustion apparatus with arrangements for burning uncombusted material from primary combustion in separate combustion chamber; on separate grate
    • 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
    • F23G5/20—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having rotating or oscillating drums
    • F23G5/22—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having rotating or oscillating drums the drums being conically shaped
    • 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
    • F23L9/00—Passages or apertures for delivering secondary air for completing combustion of fuel 
    • F23L9/02—Passages or apertures for delivering secondary air for completing combustion of fuel  by discharging the air above the fire
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2202/00—Combustion
    • F23G2202/10—Combustion in two or more stages
    • F23G2202/103—Combustion in two or more stages in separate chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2203/00—Furnace arrangements
    • F23G2203/20—Rotary drum furnace
    • F23G2203/203—Rotary drum furnace with conically shaped drum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/26—Biowaste
    • F23G2209/261—Woodwaste

Definitions

  • the invention relates to a method for supplying air to an incinerator according to the preamble of claim 1 and a solid incinerator according to the preamble of claim 7.
  • Process and installation of the aforementioned Kind are known from EP 0 952 398 A2.
  • the rotating grate is frustoconical, which is why also calls it "Brennkegel", and rotates about 35 ° inclined to the horizontal Axis, so that the fuel in the fuel cone by the orbital movement of the firing cone is circulated.
  • the firing cone consists of radial, hollow ones Support arms that extend inwards, i.e. have holes pointing towards the fuel, and Support rings that carry grate bars that form the grate surface.
  • the firing cone is from one Surround the housing and its mouth faces an afterburning chamber, in which the flame gases emerging from the firing cone are burned out.
  • a first part of the combustion air is fed to the hollow support arms and through the bores directly into the interior of the firing cone among those located there Blown fuel.
  • a second part of the combustion air is the afterburner fed at the distal end of the firing cone via radial guide vanes, flows there helical along the wall towards the firing cone and then centrally back again.
  • 20 to 30% of that is used for combustion necessary total amount of air supplied as primary air via the hollow support arms, while the rest, d. H. 80 to 70% of the total air volume as secondary air in the afterburner are fed.
  • the upper limit of the primary air volume must not be exceeded, because otherwise Slag on the grate bars of the firing cone that forms the firing cone over time can clog.
  • secondary air quantities are of the order of magnitude from 70 to 80% of the total amount of air that is necessary to give at the given Primary air volumes to avoid a lack of air on the support arms and support rings Material temperatures of more than 900 ° C, resulting in high material stress leads.
  • annular gap for the ejection of ash into the Housing surrounding the firing cone, and hot air emerges from this annular gap Afterburning chamber into the housing, which leads to the overheating of the firing cone.
  • the invention is therefore based on the object of a method and an incineration plant of the type mentioned, with which one of the exhaust regulations appropriate combustion can be achieved without overheating the rotating grate.
  • the problem described is solved according to the invention in that in the housing of the rotating grate is arranged an air inlet through which in the housing in Operation prevailing negative pressure, a third amount of air is sucked, the volume is expediently regulated by a flap arranged in the inlet, that the total amount of air supplied to the combustion is that required for the combustion Air volume corresponds.
  • the entry for the tertiary air into the housing of the rotating grate can be anywhere an arrangement is particularly effective for reducing the material temperature the entrance so that the tertiary air directly against the back of the rotating grate blows, d. H. the side that faces away from the bearing surface for the fuel.
  • Said flap in the inlet for the tertiary air is preferably an adjustable one Non-return valve with which the volume flow can be influenced on the one hand but on the other hand closes itself when there is an increase in pressure in the housing and thereby prevents hot fuel gases from being blown out into the environment.
  • the material temperature of the firing grate can be reduced even further if you are in the secondary air introduces return gas (cold flue gas from the chimney). Return gas quantities are favorable from 10 to 30%, preferably 15 to 20% of the total amount of air. Because the return gas is burned gas and is low or oxygen-free, it can do nothing for combustion contribute and therefore acts as a cooling gas for the combustion process, even if it is is warmer than the ambient air.
  • the drawing shows a firing cone, generally designated 1, by one Housing 2 is surrounded.
  • the housing 2 is expediently bricked up inside, what can be seen in the drawing.
  • the fuel cone 1 has a frustoconical shape and an adjoining cylindrical section, which is in a frustoconical mouth narrows. It is rotating around an inclined axis O. driven, the drive devices in the drawing for reasons of clarity are not shown.
  • the angle of inclination of the axis O is in the drawing indicated with ⁇ .
  • the fuel cone 1 consists of radial, hollow support arms 4 and in the circumferential direction extending support rings 6. These carry grate bars that form the grate surface, but here are not shown.
  • the hollow support arms 4 have inward, d. H. in the interior of the firing cone 1 facing openings 5 and are to a device, not shown here connected to supply primary air L1 into its interior. details this can be found in the publication mentioned at the beginning.
  • the afterburning chamber 3 has a device at its end facing away from the firing cone 1 for supplying secondary air for afterburning, using guide vanes 7 is provided, which are directed so that the secondary air is a helical Path near the peripheral wall 8 of the afterburning chamber 3 in the direction of the firing cone 1 takes.
  • the housing 2 has a shaft-shaped inlet 9 for the supply of a third Air quantity or tertiary air L3 in which a non-return valve 10 is located, with the help of which the opening cross section of the shaft 9 can be adjusted in the Drawing recognizable by an adjusting screw 11.
  • a shaft-shaped inlet 9 for the supply of a third Air quantity or tertiary air L3 in which a non-return valve 10 is located, with the help of which the opening cross section of the shaft 9 can be adjusted in the Drawing recognizable by an adjusting screw 11.
  • the inside of the Housing 2 lying mouth of the shaft 9 directly on the back of the firing cone 1 directed, d. H. on that side which is the fuel lying in the fuel cone (not shown) is turned away.
  • the secondary air is supplied in a known manner the helical movement of the secondary air in the afterburning chamber already mentioned a due to the known physical realities in the area of the larger diameter of the afterburning chamber, that near the firing cone lies, partially reversed, so that there is a central, towards the outlet of the afterburner directional flow, which escapes from the firing cone 1 Flame gases sweep away.
  • the flow near the wall also passes through one Annular gap between the afterburning chamber 3 and the firing cone mouth into the housing 2 , whereby entrained ash is thrown out into the housing 2 (cyclone effect). in the Area between this central flow and the flow close to the wall takes place within the afterburner in a known manner, an intensive mixing of fresh Combustion air with flame gases instead, which leads to intense burnout.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Solid-Fuel Combustion (AREA)
  • Incineration Of Waste (AREA)
EP20020026516 2001-12-10 2002-11-27 Dispositif de combustion à combustible solide et procédé d'alimentation en air d'un tel dispositif Expired - Lifetime EP1318351B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10160415 2001-12-10
DE2001160415 DE10160415A1 (de) 2001-12-10 2001-12-10 Feststoffverbrennungsanlage und Verfahren zum Zuführen von Luft zu einer solchen

Publications (3)

Publication Number Publication Date
EP1318351A2 true EP1318351A2 (fr) 2003-06-11
EP1318351A3 EP1318351A3 (fr) 2003-09-10
EP1318351B1 EP1318351B1 (fr) 2007-11-14

Family

ID=7708557

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020026516 Expired - Lifetime EP1318351B1 (fr) 2001-12-10 2002-11-27 Dispositif de combustion à combustible solide et procédé d'alimentation en air d'un tel dispositif

Country Status (2)

Country Link
EP (1) EP1318351B1 (fr)
DE (2) DE10160415A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014086259A1 (fr) * 2012-12-05 2014-06-12 广东德诚环保科技有限公司 Procédé pour le traitement de cendre volante provenant d'une centrale électrique à incinération de déchets

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0952398A2 (fr) 1998-04-17 1999-10-27 Dr. Schoppe Technologie GmbH Procédé et dispositif d'alimentation en air pour brûler du combustible particulaire

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1751457A1 (de) * 1968-05-31 1971-07-01 Ifb Ingenieurbuero Fuer Brennt Vorrichtung zur Verbrennung von Muell,Unrat u.dgl.
DE19817122A1 (de) * 1998-04-17 1999-10-21 Kohlenstaubtechnik Dr Schoppe Vorrichtung zum Verbrennen von stückigem Brenngut

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0952398A2 (fr) 1998-04-17 1999-10-27 Dr. Schoppe Technologie GmbH Procédé et dispositif d'alimentation en air pour brûler du combustible particulaire

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014086259A1 (fr) * 2012-12-05 2014-06-12 广东德诚环保科技有限公司 Procédé pour le traitement de cendre volante provenant d'une centrale électrique à incinération de déchets

Also Published As

Publication number Publication date
EP1318351B1 (fr) 2007-11-14
DE50211198D1 (de) 2007-12-27
EP1318351A3 (fr) 2003-09-10
DE10160415A1 (de) 2003-06-18

Similar Documents

Publication Publication Date Title
DE60209759T2 (de) Verbrennungsvorrichtung
EP0111874A1 (fr) Installation pour brûler la poussière de charbon
DE2615369B2 (de) Verfahren zur Rauchgaskonditionierung in Abfallverbrennungsanlagen mit Wärmeverwertung, insbesondere für kommunalen und industriellen Müll, und Vorrichtung zur Durchführung des Verfahrens
EP0204176A2 (fr) Chambre de combustion pour un appareil à combustion à lit fluidisé
EP0149990B1 (fr) Dispositif pour la combustion de matière biologique
DE102009014010B4 (de) Brenner für festes, stückiges Brennmaterial
EP0394911A1 (fr) Installation de combustion
EP2691701B2 (fr) Procédé d'optimisation de la combustion totale des gaz d'échappement d'une installation de combustion
EP0101462B1 (fr) Bruleur pour carburants a l'etat poudreux, gazeux et/ou liquide
EP0674134B1 (fr) Procédé de combustion pour matériaux pulvérulents
DE2745756A1 (de) Verbrennungsofen
EP0952396B1 (fr) Dispositif pour brûler des matériaux combustibles particulaires
DE3839381C2 (fr)
DE4402172C2 (de) Verfahren zur Verbrennung von Brennstoff und Anlage zur Durchführung des Verfahrens
DE1508494A1 (de) Vorrichtung zum Erhitzen von feinverteiltem Material,wie Erzen,insbesondere zur Verwendung mit einer Pelletieranlage
EP1318351A2 (fr) Dispositif de combustion à combustible solide et procédé pour l'alimentation en air d' un tel dispositif
DE19613777C2 (de) Verbrennungsanlage und Nachverbrennungsverfahren
DE69202444T2 (de) Anlage zur Abfallverbrennung.
EP0473618B1 (fr) Dispositif de combustion de biomasses et de matieres solides
DE10140422C1 (de) Thermische Nachverbrennungsvorrichtung
EP0905442A2 (fr) Appareil de combustion
DE3105099A1 (de) Verbrennungsvorrichtung
EP0952398B1 (fr) Procédé et dispositif d'alimentation en air pour brûler du combustible particulaire
DE2816282C2 (de) Müllverbrennungsofen mit einem Wirbelbett
DE102008005207B4 (de) Zündeinrichtung für ein Brennersystem

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

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

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 BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

17P Request for examination filed

Effective date: 20040310

AKX Designation fees paid

Designated state(s): BE DE FR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: F23B 30/04 20060101AFI20070724BHEP

Ipc: F23G 5/22 20060101ALI20070724BHEP

Ipc: F23L 1/02 20060101ALI20070724BHEP

Ipc: F23L 9/02 20060101ALI20070724BHEP

Ipc: F23B 80/00 20060101ALI20070724BHEP

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE FR

REF Corresponds to:

Ref document number: 50211198

Country of ref document: DE

Date of ref document: 20071227

Kind code of ref document: P

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

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

26N No opposition filed

Effective date: 20080815

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

Ref country code: FR

Payment date: 20091203

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: 20091126

Year of fee payment: 8

BERE Be: lapsed

Owner name: SCHOPPE, FRITZ, DR.-ING.

Effective date: 20101130

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20110801

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

Ref country code: BE

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

Effective date: 20101130

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

Ref country code: FR

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

Effective date: 20101130

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

Ref country code: DE

Payment date: 20121023

Year of fee payment: 11

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50211198

Country of ref document: DE

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

Ref country code: DE

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

Effective date: 20140602