EP0807788B1 - Rostanordnung zum Verbrennen von Hausmüll - Google Patents

Rostanordnung zum Verbrennen von Hausmüll Download PDF

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Publication number
EP0807788B1
EP0807788B1 EP97400932A EP97400932A EP0807788B1 EP 0807788 B1 EP0807788 B1 EP 0807788B1 EP 97400932 A EP97400932 A EP 97400932A EP 97400932 A EP97400932 A EP 97400932A EP 0807788 B1 EP0807788 B1 EP 0807788B1
Authority
EP
European Patent Office
Prior art keywords
edge
grid
incineration
bars
fixed
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
EP97400932A
Other languages
English (en)
French (fr)
Other versions
EP0807788A1 (de
Inventor
Jacques Durand
Adrian Casariego
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.)
Alstom Power Boilers abb Alstom Power Combustion
Original Assignee
Alstom Energy Systems SA
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 Alstom Energy Systems SA filed Critical Alstom Energy Systems SA
Publication of EP0807788A1 publication Critical patent/EP0807788A1/de
Application granted granted Critical
Publication of EP0807788B1 publication Critical patent/EP0807788B1/de
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
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H1/00—Grates with solid bars
    • F23H1/02—Grates with solid bars having provision for air supply or air preheating, e.g. air-supply or blast fittings which form a part of the grate structure or serve as supports
    • 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
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H17/00—Details of grates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H7/00—Inclined or stepped grates
    • F23H7/06—Inclined or stepped grates with movable bars disposed parallel to direction of fuel feeding
    • F23H7/08—Inclined or stepped grates with movable bars disposed parallel to direction of fuel feeding reciprocating along their axes

Definitions

  • the present invention relates to a grid incineration of household waste.
  • this air contributes very little to the combustion of waste and constitutes an air leak not negligible since, in the case of a limited grid laterally by two edge plates, approximately 50% of the air blowing is lost.
  • the present invention proposes to solve this problem and it relates to a household waste incineration grid as defined above, characterized in that each edge slap is provided with a series of hollows each receiving a fixed bar.
  • This arrangement has three advantages.
  • the air flows into a substantially horizontal direction and therefore penetrates the mass of waste, thus effectively participating in their combustion.
  • the chicane-shaped game is opposed to the passage to through the grid of fine particles or small metal parts from the mass of waste. At on the contrary, the particles tend to accumulate at the horizontal mouth of the chicane passage and at the plug, further limiting air leakage.
  • this arrangement only concerns the bars fixed which, by the classical constitution of such grid, correspond to approximately 85% of the length of the games lateral.
  • each hollow has the shape of a rebate vertical plane bottom, extending to the lower edge of the edge plate and whose upper edge has substantially the profile of the corresponding fixed bar.
  • the bar is fitted into the rebate with minimum vertical clearance from the bottom of the latter and a minimum horizontal clearance with respect to the edge superior of it.
  • Figure 1 is a partial view in vertical section a household waste incineration facility.
  • Figure 2 is a partial sectional view longitudinal of an incineration grid.
  • Figure 3 is a front view of an edge plate forming part of such an incineration grid in accordance with the invention.
  • Figure 4 is a partial sectional view transverse of a fixed bar of such a grid conforming to the invention.
  • Figure 1 is intended to locate a grid incineration, object of the invention, in an installation waste incineration.
  • the waste is discharged into a hopper 1 and falls in a well 2 at the bottom of which they are received on a surface horizontal and pushed by a pusher 3 on the grid incineration 4 inclined.
  • the bars of the grid 4 are alternately fixed or mobile, as will be seen more precisely below, and gradually move the mass of waste burned towards a evacuation well 6 where the waste falls into a bin cooling 7 and are recovered.
  • Figure 2 is shown in more detail the incineration grid 4. It consists of a row of fixed bars 9 and mobile bars 10 translated onto the latter, these fixed and mobile bars being interposed and provided with openings 9A, 10A for blowing air passage.
  • the support arrangement 13 of the fixed bars 9 and that of drive in translation 14 of the movable bars 10 are shown schematically in the figure and generally consist of vertical supports fixed for the first and mobile beams for the second.
  • the row of bars is laterally limited by a vertical edge plate 11 made up of several panels juxtaposed and united.
  • the grid has such an edge plate 11 on each of its edges lateral.
  • each hollow 11A has the shape of a rebate of vertical flat bottom, extending to the bottom edge 11B of the plate 11 and whose upper edge 11C has substantially the profile of the corresponding fixed bar 9.
  • Each fixed bar 9 is fitted into a rebate 11A as shown in figure 4. Between the edge plate 11 supported by a support structure 12 and the fixed bar 9 is made a minimum clearance taking into account the expansions differentials.
  • This game constitutes a flight from chicane to the supply air under the bars 9, 10 in the blowing chamber 5.
  • This passage in baffle causes a decrease in the leak rate, a flow substantially horizontal air at the exit of the passage and therefore a air penetration into the waste mass and its contribution to the combustion of it and finally opposes the fall of fine solid particles which tend to contrary to the butcher.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Incineration Of Waste (AREA)
  • Processing Of Solid Wastes (AREA)
  • Disintegrating Or Milling (AREA)

Claims (2)

  1. Verbrennungsrost für Haushaltsabfälle, gebildet aus einer Reihe von festen Stäben (9) und beweglichen Stäben (10), die über die letzteren beweglich sind, wobei die festen und beweglichen Stäbe ineinandergeschachtelt sind und mit Öffnungen (9A, 10A) versehen sind, für den Durchtritt von Gebläseluft, die aus einer Gebläsekammer (5) stammt, welche unter dem Rost angeordnet ist, wobei die Reihe seitlich durch zwei im wesentlichen vertikale Randplatten (11) begrenzt ist, dadurch gekennzeichnet, dass eine jede Randplatte mit einer Reihe von Ausnehmungen (11A) versehen ist, die jeweils einen festen Stab (9) aufnehmen.
  2. Rost nach Anspruch 1, dadurch gekennzeichnet, dass jede Ausnehmung (11A) die Form einer Nut mit vertikalem ebenen Boden hat, die sich bis zum unteren Rand (11B) der Platte erstreckt, und deren oberer Rand (11C) im wesentlichen dem Profil der korrespondierenden festen Stäbe (9) entspricht.
EP97400932A 1996-05-13 1997-04-24 Rostanordnung zum Verbrennen von Hausmüll Expired - Lifetime EP0807788B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9605911 1996-05-13
FR9605911A FR2748552B1 (fr) 1996-05-13 1996-05-13 Grille d'incineration de dechets menagers

Publications (2)

Publication Number Publication Date
EP0807788A1 EP0807788A1 (de) 1997-11-19
EP0807788B1 true EP0807788B1 (de) 2001-05-30

Family

ID=9492066

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97400932A Expired - Lifetime EP0807788B1 (de) 1996-05-13 1997-04-24 Rostanordnung zum Verbrennen von Hausmüll

Country Status (9)

Country Link
EP (1) EP0807788B1 (de)
KR (1) KR100231495B1 (de)
CN (1) CN1177082A (de)
AT (1) ATE201760T1 (de)
DE (1) DE69704987T2 (de)
DK (1) DK0807788T3 (de)
ES (1) ES2157535T3 (de)
FR (1) FR2748552B1 (de)
TW (1) TW328985B (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19851085A1 (de) * 1998-11-05 2000-05-11 Hdg Bavaria Gmbh Heizkessel & Schubrostanordnung für einen Festbrennstoff-Kessel o. dgl.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE429514C (de) * 1924-06-07 1926-05-28 Rudolf Bergmans Mechanischer Schraegrost fuer Braunkohlen- und Torffeuerungen
US2400707A (en) * 1944-07-24 1946-05-21 Westinghouse Electric Corp Grate
US3358385A (en) * 1965-04-12 1967-12-19 Fuller Co Reciprocating grate conveyor with side wall damage preventing means
FR2574160A1 (fr) * 1984-11-30 1986-06-06 Electricite De France Grille de foyer realisee a partir d'elements permettant un controle ameliore de l'apport en air primaire
DE3844493C1 (de) * 1988-12-30 1990-08-23 Karl Von Dipl.-Ing. 3057 Neustadt De Wedel

Also Published As

Publication number Publication date
CN1177082A (zh) 1998-03-25
ATE201760T1 (de) 2001-06-15
ES2157535T3 (es) 2001-08-16
KR970075655A (ko) 1997-12-10
DE69704987T2 (de) 2002-01-17
KR100231495B1 (ko) 1999-11-15
FR2748552B1 (fr) 1998-06-05
DK0807788T3 (da) 2001-09-17
EP0807788A1 (de) 1997-11-19
TW328985B (en) 1998-04-01
DE69704987D1 (de) 2001-07-05
FR2748552A1 (fr) 1997-11-14

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