EP0807788A1 - Rostanordnung zum Verbrennen von Hausmüll - Google Patents

Rostanordnung zum Verbrennen von Hausmüll Download PDF

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Publication number
EP0807788A1
EP0807788A1 EP97400932A EP97400932A EP0807788A1 EP 0807788 A1 EP0807788 A1 EP 0807788A1 EP 97400932 A EP97400932 A EP 97400932A EP 97400932 A EP97400932 A EP 97400932A EP 0807788 A1 EP0807788 A1 EP 0807788A1
Authority
EP
European Patent Office
Prior art keywords
edge
grid
fixed
bars
plate
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
EP97400932A
Other languages
English (en)
French (fr)
Other versions
EP0807788B1 (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
GEC Alsthom Stein Industrie
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 GEC Alsthom Stein Industrie filed Critical GEC Alsthom Stein Industrie
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
    • 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
    • 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
    • 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 household waste incineration grid.
  • a household waste incineration grid consisting of a row of fixed bars and mobile bars translated thereon, these fixed and mobile bars being interposed and provided with orifices for the passage of blowing air coming from 'a blowing chamber disposed under the grid, said row being laterally limited by at least one substantially vertical edge plate.
  • the bars are currently juxtaposed with minimal clearance against the edge plate. This minimum clearance must allow the differential expansion of the bars and the edge plate and the translation of the mobile bars. However, through this play, blown air blown into the blowing chamber disposed under the grid and which escapes vertically along the edge plate.
  • said edge plate is provided with at least one recess in which is fitted a side edge of a bar.
  • This arrangement has three advantages.
  • the air flows in a substantially horizontal direction and therefore penetrates the mass of waste, thus participating effectively in their combustion.
  • the baffle-shaped play prevents passage through the grid of fine particles or small metal parts from the mass of waste. On the contrary, particles tend to accumulate at the horizontal mouth of the baffle passage and to plug it, further limiting air leakage.
  • each edge plate is provided with a series of recesses each receiving a fixed bar.
  • this arrangement preferably relates only to fixed bars which, by the conventional construction of such a grid, correspond to approximately 85% of the length. side games.
  • each hollow has the shape of a vertical flat bottom rebate, extending to the lower edge of the edge plate and the upper edge of which has substantially the profile of the corresponding fixed bar.
  • the bar is fitted into the rabbet with a minimum vertical clearance relative to the bottom thereof and a minimum horizontal clearance relative to the upper edge thereof.
  • Figure 1 is a partial vertical sectional view of a household waste incineration plant.
  • FIG. 2 is a partial view in longitudinal section of an incineration grid.
  • Figure 3 is a front view of an edge plate forming part of such an incineration grid according to the invention.
  • Figure 4 is a partial cross-sectional view of a fixed bar of such a grid according to the invention.
  • Figure 1 is intended to locate an incineration grid, object of the invention, in a waste incineration installation.
  • the waste is poured into a hopper 1 and falls into a well 2 at the bottom of which it is received on a horizontal surface and pushed by a pusher 3 onto the inclined incineration grid 4.
  • the bars of the grid 4 are alternately fixed or mobile, as will be seen more precisely below, and gradually move the mass of burned waste towards a discharge well 6 where the waste falls into a cooling tank 7 and is 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 on the latter, these fixed and mobile bars being interposed and provided with orifices 9A, 10A for blowing air passage.
  • the support arrangement 13 of the fixed bars 9 and that of translational drive 14 of the mobile bars 10 are shown diagrammatically in the figure and generally consist of fixed vertical supports 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 juxtaposed and joined panels.
  • the grid includes such an edge plate 11 on each of its lateral edges.
  • each recess 11A has the form of a flat rebate vertical, extending to the lower 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 visible in FIG. 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 differential expansions.
  • This clearance constitutes a leakage passage with a baffle of the blowing air located under the bars 9, 10 in the blowing chamber 5.
  • This passage in a baffle causes a reduction in the leakage rate, a substantially horizontal flow of air at the exit of the passage and therefore penetration of the air into the mass of waste and its contribution to the combustion thereof and finally opposes the fall of fine solid particles which tend on the contrary to clog it.

Landscapes

  • 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)
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
FR9605911A FR2748552B1 (fr) 1996-05-13 1996-05-13 Grille d'incineration de dechets menagers
FR9605911 1996-05-13

Publications (2)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1004822A1 (de) * 1998-11-05 2000-05-31 HDG Bavaria GmbH Heizkessel & Anlagenbau Schubrostanordnung für einen Festbrennstoff-Kessel o. dgl.

Citations (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
US4966548A (en) * 1988-12-30 1990-10-30 Wedel Karl Von Grate cooler device for the heat treatment of bulk material

Patent Citations (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
US4966548A (en) * 1988-12-30 1990-10-30 Wedel Karl Von Grate cooler device for the heat treatment of bulk material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1004822A1 (de) * 1998-11-05 2000-05-31 HDG Bavaria GmbH Heizkessel & Anlagenbau Schubrostanordnung für einen Festbrennstoff-Kessel o. dgl.

Also Published As

Publication number Publication date
CN1177082A (zh) 1998-03-25
FR2748552B1 (fr) 1998-06-05
DE69704987D1 (de) 2001-07-05
EP0807788B1 (de) 2001-05-30
KR100231495B1 (ko) 1999-11-15
DE69704987T2 (de) 2002-01-17
KR970075655A (ko) 1997-12-10
DK0807788T3 (da) 2001-09-17
ES2157535T3 (es) 2001-08-16
FR2748552A1 (fr) 1997-11-14
ATE201760T1 (de) 2001-06-15
TW328985B (en) 1998-04-01

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