EP0633431B1 - Dispositif pour l'alimentation en combustible d'une grille à rouleaux - Google Patents

Dispositif pour l'alimentation en combustible d'une grille à rouleaux Download PDF

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Publication number
EP0633431B1
EP0633431B1 EP94105945A EP94105945A EP0633431B1 EP 0633431 B1 EP0633431 B1 EP 0633431B1 EP 94105945 A EP94105945 A EP 94105945A EP 94105945 A EP94105945 A EP 94105945A EP 0633431 B1 EP0633431 B1 EP 0633431B1
Authority
EP
European Patent Office
Prior art keywords
grate
roller
feed
charging
discharge edge
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
EP94105945A
Other languages
German (de)
English (en)
Other versions
EP0633431A1 (fr
Inventor
Albrecht Dr. Rolf
Dieter Goldammer
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.)
Babcock Lentjes Kraftwerkstechnik GmbH
Original Assignee
Babcock Lentjes Kraftwerkstechnik GmbH
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 Babcock Lentjes Kraftwerkstechnik GmbH filed Critical Babcock Lentjes Kraftwerkstechnik GmbH
Publication of EP0633431A1 publication Critical patent/EP0633431A1/fr
Application granted granted Critical
Publication of EP0633431B1 publication Critical patent/EP0633431B1/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
    • 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
    • F23G5/44—Details; Accessories
    • F23G5/442—Waste feed arrangements
    • F23G5/444—Waste feed arrangements for solid waste
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2203/00—Furnace arrangements
    • F23G2203/103—Furnace arrangements with roller grate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2205/00—Waste feed arrangements
    • F23G2205/10—Waste feed arrangements using ram or pusher
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2205/00—Waste feed arrangements
    • F23G2205/16—Waste feed arrangements using chute

Definitions

  • the invention relates to a device for feeding fuel, in particular garbage, onto a roller grate with the features of the preamble of the claim.
  • a device for feeding fuel, in particular garbage, onto a roller grate with the features of the preamble of the claim is known from document DE-A-3 420 020.
  • Such a thrust feeder device is a failure-prone unit with a safe and low-maintenance mode of operation.
  • the solid column inside the feed shaft serves as an air seal of the combustion chamber from the outside atmosphere due to the cross-sectional relationships of the feed shaft and the feed opening.
  • the waste is compacted before entering the combustion chamber.
  • the garbage compressed in this way falls onto the first grate roller when it enters the combustion chamber and expands there. At times, this can lead to discontinuous feeding, which can cause more or less strong fluctuations in the temperature of the combustion chamber.
  • the invention has for its object to design the generic thrust task so that the loading of the roller grate is continuous.
  • the arrangement of the first grate roller according to the invention forms a sump into which the compacted garbage emerging through the feed opening can expand without falling into the combustion chamber or falling onto the first grate roller. Rather, the garbage from the sump is fed continuously and loosely to the first grate roller for further transport. Due to the fuel reservoir created in the sump, the thrust piston is so well protected that it can be advanced to the combustion chamber in a more reliable manner than was previously the case. This makes it possible to limit the garbage area to be compacted to the size required for a safe air seal and thus to feed the quantity per feed stroke to the roller grate in even finer doses. Another advantage is that the garbage stored in the sump until further transport is already pre-dried during its dwell time by the temperatures prevailing in the combustion chamber.
  • the drawing shows the longitudinal section through a roller grate with a feed device.
  • the roller grate consists of several, parallel to one another and spaced apart from each other, hollow cylindrical, in the same direction of rotation driven grate rollers 1. Between the grate rollers 1 there is a storage space 2 which is delimited at the bottom by wipers 3.
  • the outer end of the roller body of the grate rollers 1 is, as is known per se, formed by grate bar supports in which curved grate bars are suspended.
  • An ash funnel 4 is arranged below each grate roller 1, through which combustion air is fed and through which the grate diarrhea is removed.
  • the abandoned garbage is detected by the first grate roller 1, enters the storage space 2 between the first and the subsequent grate roller 1, where it is stripped by the scraper 3 from the first grate roller 1 and circulated in the storage space 2 before being removed by the subsequent one Grate roller 1 is detected and transported on.
  • a combustion chamber 6 is formed between the roller grate, a ceiling constructed from tubes 5, which are connected to one another in a gastight manner and through which water or steam flows, and side walls, not shown.
  • the combustion chamber 6 is used for the afterburning and the removal of the flue gases resulting from the combustion of the waste.
  • a feed chute 7 is connected upstream of the roller grate and is delimited at the bottom by a horizontal feed table 8.
  • a thrust piston 10 driven by a piston-cylinder arrangement 9 slides over the feed table 8.
  • the thrust piston 10 is shown in the retracted rest position.
  • the dashed lines represent the operating position of the thrust piston 10.
  • the thrust piston 10 is shifted from the left, rearward position to the vicinity of the discharge edge 11 of the feed table 8.
  • a stepped or obliquely downward-pointing floor 12 is located between the discharge edge 11 of the feed table 8 and the first grate roller 1.
  • the feed chute 7 has a feed opening 13 which extends over the entire width of the feed chute 7 and is delimited at the bottom by the feed table 8.
  • the height of the feed opening 13 is substantially smaller than the depth of the feed shaft 7.
  • the first that is, the grate roller 1 adjacent to the feed chute 7 is arranged at a lateral distance from the discharge edge 11 of the feed table 8. Its upper apex 14 is preferably approximately in the plane of the feed table 8. Deviations from this plane by half a radius of the grate roller 1 downwards or upwards are possible. Due to this arrangement of the first grate roller 1, a sump 15 is formed above the bottom 12, into which the garbage pressed out of the feed opening 13 expands. As a result, the waste is loosened and continuously fed to the first grate roller 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Incineration Of Waste (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Refuse Collection And Transfer (AREA)
  • Crushing And Grinding (AREA)

Claims (1)

  1. Dispositif d'alimentation en combustible, en particulier en ordures, sur une grille à rouleaux, comportant plusieurs rouleaux de grille (1) cylindriques disposés le long d'un plan incliné, un sas d'alimentation (7) étant mis en circuit en amont de la grille à rouleaux et étant pourvu à son extrémité inférieure d'une ouverture d'alimentation (13) et d'une table d'alimentation (8) délimitant par le dessous l'ouverture d'alimentation (13) et présentant une arête d'éjection (11), une table d'alimentation sur laquelle un piston pousseur (10) est guidé de façon à coulisser dans un sens et dans l'autre, un fond (12), étagé ou orienté obliquement vers le bas, se trouvant entre l'arête d'éjection (11) et le premier rouleau de grille, la section transversale de l'ouverture d'alimentation (13) étant plus petite que la section transversale du sas d'alimentation (7), caractérisé en ce que le rouleau de grille (1) voisin du sas d'alimentation (7) est disposé latéralement à distance de l'arête d'éjection (11) de la table d'alimentation (8), et en ce que le sommet supérieur (14) de ce rouleau de grille (1) est situé dans le plan de la table d'alimentation (8) ou, au plus haut, jusqu'à un demi rayon du rouleau de grille (1), au-dessus ou au-dessous de ce plan, permettant que soit constituée une cuve (15) destinée au combustible, entre l'arête d'éjection (11) et le premier rouleau de grille.
EP94105945A 1993-07-09 1994-04-16 Dispositif pour l'alimentation en combustible d'une grille à rouleaux Expired - Lifetime EP0633431B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4322909 1993-07-09
DE4322909A DE4322909A1 (de) 1993-07-09 1993-07-09 Vorrichtung zur Aufgabe von Brennstoff auf einen Walzenrost

Publications (2)

Publication Number Publication Date
EP0633431A1 EP0633431A1 (fr) 1995-01-11
EP0633431B1 true EP0633431B1 (fr) 1996-07-17

Family

ID=6492354

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94105945A Expired - Lifetime EP0633431B1 (fr) 1993-07-09 1994-04-16 Dispositif pour l'alimentation en combustible d'une grille à rouleaux

Country Status (5)

Country Link
EP (1) EP0633431B1 (fr)
AT (1) ATE140526T1 (fr)
DE (2) DE4322909A1 (fr)
DK (1) DK0633431T3 (fr)
ES (1) ES2091063T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19707914A1 (de) * 1997-02-27 1998-09-03 Babcock Anlagen Gmbh Verfahren und Vorrichtung zum Behandeln von Asche
CN101532669B (zh) * 2008-12-17 2011-02-16 伟明环保设备有限公司 多列式垃圾焚烧炉炉排的中间补偿机构
CN102563660B (zh) * 2012-02-10 2013-11-20 袁永扬 封闭式垃圾焚烧炉

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1401889A1 (de) * 1960-04-22 1969-03-13 Stadt Duesseldorf Muellverbrennungsanlage
DE1551906B2 (de) * 1966-03-01 1976-05-06 Martin, Johannes Josef, Dr.-Ing., 8000 München Beschickungsvorrichtung fuer grossfeuerungen, insbesondere muellverbrennungsanlagen
DE1260665B (de) * 1967-05-23 1968-02-08 Ver Kesselwerke Ag Rostbelag fuer die Rostwalzen eines Walzenrostes in Muellverbrennungsanlagen
JPS59107116A (ja) * 1982-12-10 1984-06-21 Kubota Ltd 焼却炉
DE3324627A1 (de) * 1983-07-08 1985-01-24 Müllverbrennungsanlage Wuppertal GmbH, 5600 Wuppertal Verfahren zum verbrennen von muell
DE3420020A1 (de) * 1983-12-23 1985-07-04 Müllverbrennungsanlage Wuppertal GmbH, 5600 Wuppertal Roststab sowie rostwalze fuer den walzenrost z.b. einer muellverbrennungsanlage oder dergleichen
SU1756741A1 (ru) * 1989-11-21 1992-08-23 Научно-Производственное Объединение По Исследованию И Проектированию Энергетического Оборудования Им.И.И.Ползунова Топка дл сжигани твердых бытовых отходов

Also Published As

Publication number Publication date
ATE140526T1 (de) 1996-08-15
ES2091063T3 (es) 1996-10-16
DK0633431T3 (da) 1996-11-25
EP0633431A1 (fr) 1995-01-11
DE59400432D1 (de) 1996-08-22
DE4322909A1 (de) 1995-01-12

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