EP0288597B1 - Feu à grille pour l'incinération des déchets - Google Patents

Feu à grille pour l'incinération des déchets Download PDF

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Publication number
EP0288597B1
EP0288597B1 EP87110535A EP87110535A EP0288597B1 EP 0288597 B1 EP0288597 B1 EP 0288597B1 EP 87110535 A EP87110535 A EP 87110535A EP 87110535 A EP87110535 A EP 87110535A EP 0288597 B1 EP0288597 B1 EP 0288597B1
Authority
EP
European Patent Office
Prior art keywords
grate bar
grate
air
combustion
combustion air
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
Application number
EP87110535A
Other languages
German (de)
English (en)
Other versions
EP0288597A1 (fr
Inventor
Louis Ing.(Grad) Mrklas
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 AT87110535T priority Critical patent/ATE60832T1/de
Publication of EP0288597A1 publication Critical patent/EP0288597A1/fr
Application granted granted Critical
Publication of EP0288597B1 publication Critical patent/EP0288597B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H3/00—Grates with hollow bars
    • F23H3/02—Grates with hollow bars internally cooled

Definitions

  • the invention relates to a grate furnace for waste incineration according to the preamble of claim 1.
  • a grate furnace for burning waste materials is also known, in which individual grate bar elements, provided with air channels for conveying the combustion air, are arranged in steps.
  • the air channels are designed such that the combustion air exits parallel to the top of the profiles of the grate bar elements.
  • Each grate bar element consists of a single material slide surface. These elements are assembled in a step-like manner by means of an insert spring or by means of screws such that the air supply joints are each guided over the next grate bar element.
  • the invention is therefore based on the object of providing grate firing with grate bar elements by means of which the disadvantages described above are avoided.
  • the grate bar element designed according to the invention optimal combustion is ensured regardless of whether the waste to be incinerated is dry, wet or pasty. Due to the air outlet slots already formed during the manufacture of the individual elements and the tile-like arrangement of the individual elements, different expansions of the individual elements cannot have a serious effect because the combustion air through the air outlet slots provided in each grate bar element in at least two stages over the entire combustion width and length is blown evenly horizontally. The joining of the individual elements on both sides has no influence on the existing air outlet slots, which also ensures the uniform supply of the combustion air.
  • a grate furnace for garbage 23 formed from individual grate bar elements 1 is provided below a combustion chamber and is loaded with the garbage 23 from above.
  • Combustion air 14 is fed horizontally to the forced air-cooled grate bar elements 1 via air distribution boxes 24, which are accommodated in ash funnels 27, via air outlet slots 5, 6 arranged in lugs 2, 2a (FIG. 3).
  • the combustion air 14 serves at the same time as cooling air for the grate bar elements 1.
  • 8 air channels 3, 4 with cooling fins 11, 12 for cooling the grate bar elements 1 are attached to each side of a longitudinal web, which at the end of the lugs 2, 2a with the air slots 5 designed as nozzles , 6 are provided.
  • This design of the air slots 5, 6 in the form of nozzles ensures that at the level of the air outlet all or largely all of the pressure energy of the supplied combustion air generated by a primary air fan is converted into speed, and without any noteworthy pressure loss. This ensures the lowest possible pressure loss with a largely laminar formation of the combustion air emerging from the nozzles 5, 6.
  • the air nozzles 5, 6 directed towards the material sliding surfaces 9, 10 and 13 (FIG. 2) feed the combustion air 14 horizontally across the entire grate width (FIG. 2) for the combustion of the waste. Furthermore, the sliding surfaces 9, 10, 13 are cooled by the combustion air 14 which is positively guided via the air channels 3, 4, as a result of which the temperature of the grate bar elements 1 is kept very low and metallic weld-ons are prevented.
  • the individual grate bar elements 1 are provided with bores 7 (FIG. 2), which allow the individual elements 1 to be screwed together to form a grate flat surface 9, 10, 13 without the formation of a gap between the individual grate bar elements 1. This enables the desired combustion of pasty 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)

Claims (3)

1. Feu à grille pour l'incinération de déchets dans lequel des barreaux de grille (1) disposés en escalier sont munis de fentes (5, 6) pour l'acheminement de l'air de combustion et d'ailettes (11, 12) pour le refroidissement des barreaux de grille, les fentes pour l'air étant réalisées de telle manière que l'air de combustion s'échappe parallèlement au côté supérieur des profils des barreaux de grille, caractérisé en ce que chaque barreau de grille (1) présente deux surfaces de glissement (9, 10) pour le matériau qui sont disposées l'une au-dessus de l'autre en cascade et sont limitées à leur extrémité par des nez (2, 2a) dans lesquels sont réalisées les fentes (5, 6) pour l'air et en ce que les différents barreaux de grille (1) sont disposés les uns au-dessus des autres comme des tuiles.
2. Feu à grille selon la revendication 1, caractérisé en ce que les fentes (5, 6) pour l'air sont réalisées sous forme de tuyères dont la section transversale se rétrécit à partir du début de la tuyère vers la fin de la tuyère.
3. Feu à grille selon la revendication 1 ou 2, caractérisé en ce que chaque barreau de grille (1) présente de part et d'autre des perçages (7) pour recevoir des éléments d'assemblage, si bien que les barreaux de grille (1) peuvent être assemblés pour former une surface de grille plane et fermée (9, 10, 13).
EP87110535A 1987-04-25 1987-07-21 Feu à grille pour l'incinération des déchets Expired - Lifetime EP0288597B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87110535T ATE60832T1 (de) 1987-04-25 1987-07-21 Rostfeuerung fuer die muellverbrennung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3716082 1987-04-25
DE3716082 1987-04-25

Publications (2)

Publication Number Publication Date
EP0288597A1 EP0288597A1 (fr) 1988-11-02
EP0288597B1 true EP0288597B1 (fr) 1991-02-06

Family

ID=6327507

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87110535A Expired - Lifetime EP0288597B1 (fr) 1987-04-25 1987-07-21 Feu à grille pour l'incinération des déchets

Country Status (2)

Country Link
EP (1) EP0288597B1 (fr)
AT (1) ATE60832T1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3913885A1 (de) * 1989-04-27 1990-10-31 Omnical Gmbh Kesselfeuerung zum verfeuern feuchter brennstoffe
JPH0717937Y2 (ja) * 1990-05-21 1995-04-26 日本鋼管株式会社 横型焼却炉の火格子構造
DE4105330C1 (fr) * 1991-02-18 1992-08-06 Noell - K + K Abfalltechnik Gmbh, 4040 Neuss, De
DE19860553C2 (de) * 1998-12-22 2001-03-29 Mannesmann Ag Flüssigkeitsgekühlter Verbrennungsrost
US7146916B2 (en) * 2004-05-14 2006-12-12 Eco/Technologies, Llc Starved air inclined hearth combustor
DE102004032291B4 (de) * 2004-07-03 2006-07-13 Lurgi Lentjes Ag Rostplatte
DE102004034322B4 (de) * 2004-07-15 2006-09-28 Lurgi Lentjes Ag Rostplatte

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH543045A (de) * 1970-09-29 1973-10-15 Sigg Conrad Einrichtung zum Verbrennen von Abfallstoffen, insbesondere Müll, Schlamm und Rückstände
CH669447A5 (fr) * 1982-05-13 1989-03-15 Von Roll Ag
DE3428586A1 (de) * 1983-08-30 1985-03-07 Deutsche Richard Kablitz Gesellschaft für Ökonomie der Dampferzeugungskosten und Feuerungskontrolle Richard Kablitz GmbH & Co KG, 6970 Lauda Schraegrost fuer feuerungen

Also Published As

Publication number Publication date
EP0288597A1 (fr) 1988-11-02
ATE60832T1 (de) 1991-02-15

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