EP0825383A2 - Plaque de grille - Google Patents

Plaque de grille Download PDF

Info

Publication number
EP0825383A2
EP0825383A2 EP97111615A EP97111615A EP0825383A2 EP 0825383 A2 EP0825383 A2 EP 0825383A2 EP 97111615 A EP97111615 A EP 97111615A EP 97111615 A EP97111615 A EP 97111615A EP 0825383 A2 EP0825383 A2 EP 0825383A2
Authority
EP
European Patent Office
Prior art keywords
grate
cover segment
plate
base body
grate 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
EP97111615A
Other languages
German (de)
English (en)
Other versions
EP0825383A3 (fr
EP0825383B1 (fr
Inventor
Rolf Merz
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.)
GE Power Systems GmbH
Original Assignee
EVT Energie und Verfahrenstechnick GmbH
Alstom Energy Systems 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 EVT Energie und Verfahrenstechnick GmbH, Alstom Energy Systems GmbH filed Critical EVT Energie und Verfahrenstechnick GmbH
Publication of EP0825383A2 publication Critical patent/EP0825383A2/fr
Publication of EP0825383A3 publication Critical patent/EP0825383A3/fr
Application granted granted Critical
Publication of EP0825383B1 publication Critical patent/EP0825383B1/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
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H3/00—Grates with hollow bars
    • F23H3/02—Grates with hollow bars internally cooled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H17/00—Details of grates
    • F23H17/12—Fire-bars
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H2900/00—Special features of combustion grates
    • F23H2900/03021—Liquid cooled grates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H2900/00—Special features of combustion grates
    • F23H2900/17002—Detachable or removable worn-out parts

Definitions

  • the invention relates to a grate plate for feed grates, in particular for feed grates from Waste incineration plants, the feed grate consisting of several mutually movable, there are stepped grate plate rows and the grate plate extends over the entire width of the feed grate or the rust track and this through water or with one opposite Water is cooled by high-boiling coolant.
  • feed grids are by transversely to the direction of transport of the material extending, gradually overlapping rows of grate plates or grate bars. Every second row of grate plates or grate bars usually leads to the transport of the firing material a thrust movement caused by a drive device.
  • the waste becomes one transported and the other mixed and stirred.
  • the waste on the feed grate it is dried, preheated, degassed and gasified one after the other and burned out the combustible.
  • EP 0 621 449 B1 has disclosed a water-cooled grate plate which overlaps extends the entire width of the combustion grate or grate track, which is made of sheet metal, forms a hollow body with top and bottom and at least on one side of the bottom a connection piece and on the other side at least one discharge pipe for the Has supply and discharge of a liquid medium flowing through them for their temperature control.
  • a disadvantage of the known grate plate has been shown that when a replacement is required a grate plate, z. B. by mechanical abrasion, by thermal or Corrosive wear or damage, one complete grate plate replaced must become. Due to the grate plates, some of which are up to 3.0 m wide, problems arise with the Removing and installing such grate plates due to their high weight and bulk. It is also not justifiable from an economic point of view, a partially worn grate plate to be exchanged completely.
  • the object of the present invention is to provide a grate plate, the aforementioned Avoids disadvantages.
  • FIG. 1 shows sections of the schematic longitudinal section through one of several rows of grate plates 26 formed grate 25 for the combustion of waste.
  • the feed grate 25 is usually slightly inclined in the transport direction of the firing material.
  • Transport and mixing or agitation of the firing material is due to the pushing movement of mechanical or hydraulic drive devices driven grate plate carrier 28 or rows of grate plates 26 causes, usually every second row of grate plates 26 is driven and the intermediate rows of grate plates 26 are stationary.
  • Take over the grate plate carrier 28 the function of supporting the grate plates 1 and also the pushing movement.
  • the feeder The primary combustion air to the firing material comes through the below the feed grate 25 arranged air zones 27 and the nozzle-shaped in the grate plates 1 Air gaps 6, the air zones 27 in the longitudinal direction and possibly also in the transverse direction of the feed grate 25 are divided into several zones.
  • grate plate 1 according to the invention, which extends over the entire width of the feed grate 25 or a grate track of a multi-track feed grate 25 and the from a base body 2 and, depending on the width of the grate plate 1, from one or more cover segments 3 exists.
  • the base body 2 forms the grate plate base 4, which on the following, underlying row of grate plates 26 rests and forms the cover segment (s) 3 form the grate plate body 5, the front end of which closes with the grate plate head 22.
  • the grate plate 1 enables the partial replacement of cover segments 3, which are more exposed to the firing material than the base body 2 and are therefore more worn or damaged.
  • the base body 2 consists of two side plates 7, one bottom plate 8 arranged therebetween, depending on the width, with one or more if necessary Intermediate plates 9 and at least one, flowed through by a coolant and between the Side plates 7 or, in the case of existing intermediate plates 9, also between side plates 7 and intermediate plates 9 and between the intermediate plates 9 arranged hollow profiles 10 is formed.
  • intermediate plates 9 these are preferably across the width of the base body 2 evenly distributed.
  • the hollow profile 10 is preferably formed as a rectangular hollow profile and is in the longitudinal direction Grate plate 1 (i.e. in the direction of transport) seen opposite the front edge of the back plate 14 and lower plate 15 (grate plate head 22) of the cover segment 3 set back in such a way that between the lower plate 15 and the upper edge of the hollow profile 10, a nozzle-shaped air gap 6 is formed for supplying primary combustion air into the firing material.
  • the nozzle-shaped Air gap 6 is thus formed by base body 2 and cover segment 3 and extends across the width of the grate plate 1, interrupted only if necessary by intermediate plates 9.
  • the front edge of the base plate 8 is also opposite the front edge of the back plate 14 set back to the main load of the Brennguttransportes to the front to shift the back plate 14.
  • a grate plate 1 extends depending on the width of the grate plate 1 between two side plates 7 or between side plates 7 and Intermediate plates 9 and possibly between the intermediate plates 9 of a base body 2.
  • the cover segment 3 consists of two side plates 11, support element 13 arranged between them, Back and bottom plate 14, 15.
  • Side plates 11, support element 13, back and bottom plate 14, 15 form one of a coolant, e.g. B. water, flowed through cavity 12, which with several, a labyrinth-forming partition plates 16 is provided.
  • a coolant e.g. B. water
  • the cover segment 3 and the base body 2 each have separate coolant inflows and drains 18, 19 which are arranged to the side of the air zones 27. At least one each Inflow 18 is on one side of the lower plate 15 of the cover segment 3 and the hollow profile 10 of the base body 2 and at least one drain 19 is on the other side of the lower plate 15 of the cover segment 3 and the hollow profiles 10 of the base body 2 are arranged. Inlets and outlets 18, 19 are equipped with devices 20, for. B. a connecting piece for connection formed by connecting lines, not shown. For grate plates 1 with several in a row arranged hollow profiles 10 and cover segments 3 is the coolant drain 19th through a connecting line 21 to the coolant inflow 18 of the adjacent hollow profile 10 or cover segment 3 connected.
  • the lower plate 15 is angled in the area of the grate plate head 22 such that the middle Outflow angle ⁇ of the nozzle-shaped air gap 6 is at an angle to the horizontal from 10 - 60 °.
  • Base body 2 and cover segment 3 are preferably the same from steel sheets and profiles Made of material and welded in each case.
  • the base plate 8 is opposite the back plate 14 formed from more wear-resistant material.
  • the cover segment (s) 3 are with their side plates 11 by at least two Connecting means 17, e.g. B. screw connection, with the side plates 7 and intermediate plates 9th of the base body 2 connected.
  • the air gap 6 can be arranged in parallel according to FIG. 8 by inserting a guide plate 23 Air gap walls should be formed. A divergent air gap 6, if necessary, is also through appropriate design of the lower plate 15 and the guide plate 23 possible (not shown).
  • the upper part of the hollow profile 10 is designed in accordance with the contour of the guide plate 23 or in another desired shape be (not shown).

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Laminated Bodies (AREA)
  • Table Devices Or Equipment (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
EP97111615A 1996-08-10 1997-07-09 Plaque de grille Expired - Lifetime EP0825383B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19632316 1996-08-10
DE19632316A DE19632316C1 (de) 1996-08-10 1996-08-10 Rostplatte

Publications (3)

Publication Number Publication Date
EP0825383A2 true EP0825383A2 (fr) 1998-02-25
EP0825383A3 EP0825383A3 (fr) 1998-09-16
EP0825383B1 EP0825383B1 (fr) 2002-01-23

Family

ID=7802317

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97111615A Expired - Lifetime EP0825383B1 (fr) 1996-08-10 1997-07-09 Plaque de grille

Country Status (7)

Country Link
EP (1) EP0825383B1 (fr)
AT (1) ATE212429T1 (fr)
CZ (1) CZ291546B6 (fr)
DE (2) DE19632316C1 (fr)
HU (1) HU218993B (fr)
PL (1) PL321534A1 (fr)
SK (1) SK106697A3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19851471A1 (de) * 1998-11-09 2000-05-11 Mitteldeutsche Feuerungs Und U Durchfallarmer Vorschubrostbelag
DE19912944C1 (de) * 1999-03-23 2000-07-27 Didier Werke Ag Rostwangen-Abdichtkörper
FR2894012A1 (fr) * 2005-11-28 2007-06-01 Cometal France Sarl Barreau pour grille de four d'incineration
CN112610955A (zh) * 2020-12-18 2021-04-06 上海康恒环境股份有限公司 一种焚烧炉炉排组合式炉排条结构

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19753981C2 (de) * 1997-12-05 2000-04-06 Alstom Energy Syst Gmbh Flüssigkeitsgekühlte Rostplatte
EP0924464A1 (fr) * 1997-12-19 1999-06-23 KOCH, Theodor Grille d'une installation de combustion et méthode pour son refroidissement
DE19860552C2 (de) * 1998-12-22 2001-02-08 Mannesmann Ag Kühlbarer Verbrennungsrost
DE19860553C2 (de) * 1998-12-22 2001-03-29 Mannesmann Ag Flüssigkeitsgekühlter Verbrennungsrost

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0621449B1 (fr) 1993-04-20 1995-08-09 Doikos Investments Ltd Procédé pour la combustion de déchets sur une grille de combustion ainsi qu'une grille de combustion pour la mise en oeuvre du procédé et barreau pour la fabrication d'une telle grille

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2833255A1 (de) * 1978-07-28 1980-02-07 Pauli Gmbh Waermetechnik Luftgekuehlter roststab
IT1235900B (it) * 1985-10-11 1992-12-02 Vaifro Vittorio Bonomelli Griglia di combustione a gradini mobili per combustibili solidi in particolare rifiuti solidi urbani e assimilabili
FR2694376B1 (fr) * 1992-07-31 1994-09-30 A3C Metal Barreau pour grille d'incinération d'ordures ménagères.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0621449B1 (fr) 1993-04-20 1995-08-09 Doikos Investments Ltd Procédé pour la combustion de déchets sur une grille de combustion ainsi qu'une grille de combustion pour la mise en oeuvre du procédé et barreau pour la fabrication d'une telle grille

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19851471A1 (de) * 1998-11-09 2000-05-11 Mitteldeutsche Feuerungs Und U Durchfallarmer Vorschubrostbelag
DE19912944C1 (de) * 1999-03-23 2000-07-27 Didier Werke Ag Rostwangen-Abdichtkörper
FR2894012A1 (fr) * 2005-11-28 2007-06-01 Cometal France Sarl Barreau pour grille de four d'incineration
CN112610955A (zh) * 2020-12-18 2021-04-06 上海康恒环境股份有限公司 一种焚烧炉炉排组合式炉排条结构

Also Published As

Publication number Publication date
CZ291546B6 (cs) 2003-04-16
HUP9701047A3 (en) 1999-09-28
SK106697A3 (en) 1998-06-03
EP0825383A3 (fr) 1998-09-16
HU9701047D0 (en) 1997-08-28
ATE212429T1 (de) 2002-02-15
EP0825383B1 (fr) 2002-01-23
DE59706162D1 (de) 2002-03-14
CZ249297A3 (cs) 1998-03-18
PL321534A1 (en) 1998-02-16
DE19632316C1 (de) 1997-09-04
HUP9701047A2 (hu) 1998-04-28
HU218993B (hu) 2001-01-29

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