EP2511609B1 - Barreau de grille modulaire, élément de recouvrement et élément de base associé ainsi que la grille d'avance d'une installation de combustion - Google Patents

Barreau de grille modulaire, élément de recouvrement et élément de base associé ainsi que la grille d'avance d'une installation de combustion Download PDF

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Publication number
EP2511609B1
EP2511609B1 EP12002650.5A EP12002650A EP2511609B1 EP 2511609 B1 EP2511609 B1 EP 2511609B1 EP 12002650 A EP12002650 A EP 12002650A EP 2511609 B1 EP2511609 B1 EP 2511609B1
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EP
European Patent Office
Prior art keywords
foot
grate
section
elements
overlay
Prior art date
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Application number
EP12002650.5A
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German (de)
English (en)
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EP2511609A2 (fr
EP2511609A3 (fr
Inventor
Mathias Breiding
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.)
WVT Breiding GmbH
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Wvt Breiding GmbH
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Priority claimed from DE202011005341.5U external-priority patent/DE202011005341U1/de
Application filed by Wvt Breiding GmbH filed Critical Wvt Breiding GmbH
Publication of EP2511609A2 publication Critical patent/EP2511609A2/fr
Publication of EP2511609A3 publication Critical patent/EP2511609A3/fr
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Classifications

    • 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
    • F23H2900/17002—Detachable or removable worn-out parts

Definitions

  • the invention relates to a grate bar, a support element and a foot element therefor, as well as a moving grate of an incinerator according to the preamble of claims 1, 4, 5 and 6, respectively.
  • each grate bar has a downwardly extending support section for connection to a holding or propulsion element for holding or to and fro Moving the grate bar relative to a vertically adjacent grate bar, in the front area a feed section for advancing the items to be fired on the grate bar located vertically below, and a surface for items to be fired.
  • Such grate bars are also from EP 2 306 086 A2 known.
  • the known grate bars for advancing grids have a number of disadvantages.
  • the known grate bars tend to clog air nozzles in the surface. This leads to the fact that the air flow is increasingly fed to the items to be fired via neighboring air nozzles and these air nozzles burn out. Firing residue trapped between the feed section and the surface can also cause high wear.
  • the grate bar when a grate bar is worn, the grate bar must always be replaced as a whole, for which purpose the entire staircase-shaped arrangement often has to be dismantled. This leads to long and costly downtimes. Storage is also expensive because large grate bars must always be kept in stock.
  • the known grate bars cannot be adapted to special firing conditions and different items to be fired.
  • the invention is therefore based on the object of creating a grate bar, a support element and a foot element for it, as well as a moving grate of an incinerator according to the preamble of claims 1, 4, 5 and 6, which have a flexible configuration, a enable increased service life as well as simplified handling, assembly, disassembly and repair.
  • the operation of the system can also be better controlled.
  • a grate bar for a moving grate of an incineration plant is created with a burning path section for items to be fired, a front foot section and a rear support section, which is modularly composed of individual exchangeable elements that are positively and / or non-positively connected to one another.
  • the grate bar can be flexibly assembled from suitable elements, in particular at least three and up to 20, 25 or 30 elements, according to the respective requirements. If there are signs of wear, breakage and the like, only the affected elements need to be replaced. This saves costs because less material has to be replaced.
  • the geometry of the grate bar can be changed flexibly and storage becomes cheaper, since only those elements have to be kept that frequently and / or quickly wear and / or fail.
  • the grate bar is composed of a support element forming the support section, one or more, in particular 2, 3, 4, 5, 6, 7 or 8 to 10, 15, 20, 25 or 30, the focal path section forming the focal path section, and a foot element forming the foot section.
  • This division has proven to be particularly useful, since it has the highest flexibility in the configuration and the greatest possible mechanical stability with the best wear resistance.
  • the support element preferably forms a support surface with a support section for placing the grate bar on a support bar or the like for the purpose of holding or moving it back and forth, and a connecting section for connecting to the foot section.
  • the connecting section has a rib, preferably two parallel lateral ribs, with part of a dovetail connection, for example the dovetail recess, and optionally a preferably central rib with a recess for a rod-shaped connecting element, which extends through a corresponding rib of a foot portion can extend.
  • a rib preferably two parallel lateral ribs, with part of a dovetail connection, for example the dovetail recess, and optionally a preferably central rib with a recess for a rod-shaped connecting element, which extends through a corresponding rib of a foot portion can extend.
  • the foot element can also have a connecting section for connection to the support section and a foot as well as a connecting rib extending between the connecting section and the foot for a focal path section, whereby a connection that can be easily and quickly established and released is created.
  • the fuel path element can have ribs on the underside with recesses for a rod-shaped connecting element. In this way, one or, if necessary, several fuel path elements can be fastened securely and releasably and preferably with play on the foot element in a simple manner with only one connection such as a rod or the like.
  • the focal path element is expediently provided with lateral recesses which form air nozzles of any shape and number. Recesses in adjacent focal path elements can jointly form air nozzles. Since the focal path elements can be assembled at a distance from one another due to the assembly clearance and, in the fastened state, can preferably be moved in a vertical direction, the air nozzles are self-cleaning. The high level of wear and burn-through known from the prior art is minimized.
  • the individual elements can each have different mechanical properties such as heat resistance and abrasion resistance and / or be formed from a different material and / or have a different material. This enables flexible adaptation to the particular conditions of the incineration system and to the items to be fired, and elements that are particularly heavily or lightly stressed can each be optimally designed.
  • the invention also creates a support element and a foot element for a grate bar, each of which is marketable by itself.
  • the components can be cast parts and / or made of steel / sheet metal alloys.
  • grate bar 1 for a moving grate of an incinerator is composed of a support element 2, for example four fuel path elements 3 and a foot element 4, which In the Figs. 2 to 4 are shown in detail.
  • the support element 2 has a surface which can be provided with a flat reinforcing element.
  • a support section 5 is provided for connection and / or for placing on a fastening and / or a drive mechanism for moving back and forth, preferably in the plane of the surface.
  • a dovetail connection 6 or the like on here two lateral ribs 7 of the support element 2 and on two likewise lateral ribs 8 of the foot element 4 connects the two to one another.
  • the foot element 4 is secured on the support element 2 by a screw connection 9 or the like.
  • the ribs 10 also have recesses 11 such as aligned bores into which a rod 12 can be pushed in order to fasten the focal path elements 3, which also have ribs 13 with recesses 11 here in pairs.
  • the end of the rod 12 can be fastened with closing elements 14 such as welded-on washers, with play preferably remaining so that the focal path elements 3 remain movable laterally by at least 2, 5, 7, 10, 15, 20 mm, in particular due to the hot air movements caused by combustion.
  • Air nozzles 16 can be provided in the surface of the fuel path elements 3 and in particular, as shown, on the mutually adjoining sides 15 of the fuel path elements 3, which here run obliquely and possibly tapered, for example.
  • the sides 15 can also be free of air nozzles, cf. Fig. 5 to prevent the grate from falling out in the discharge zone.
  • the modular structure also allows a different flexible adaptation of the different levels of a step grating on the basis of the standard components. For example, one stage can be designed with and another without air nozzles.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)
  • Solid-Fuel Combustion (AREA)

Claims (8)

  1. Barreau de grille (1) pour une grille d'avancement d'un système d'incinération, pourvu d'un tronçon de trajet de combustion pour les combustibles, d'un tronçon de pied frontal et d'un tronçon de dépose arrière, le barreau de grille (1) étant composé de manière modulaire d'éléments (2, 3, 4) individuellement interchangeables, qui sont assemblés les uns aux autres par complémentarité de forme et/ou de force, un élément de dépose (2) formant le tronçon de dépose et un élément de trajet de combustion (3) formant le tronçon de trajet de combustion étant prévus, caractérisé en ce que l'élément de trajet de combustion (3) s'appuie sur un élément de pied (4) formant le tronçon de pied et l'élément de dépose (2) comporte une nervure (7) avec une partie d'un assemblage en queue d'aronde (6) et l'élément de pied (4) comporte une nervure (8, 10) avec une autre partie de l'assemblage en queue d'aronde (6), de telle sorte que l'élément de dépose (2) et l'élément de pied (4) soient fixés l'un à l'autre de manière amovible par l'intermédiaire de l'assemblage en queue d'aronde (6).
  2. Barreau de grille selon la revendication 1, caractérisé en ce que l'élément de trajet de combustion (3) comporte des nervures (13) en face inférieure, pourvue d'évidements pour un élément d'assemblage (12) en forme de barre et/ou des évidements (16) latéraux ; et/ou en ce que plusieurs éléments de trajet de combustion (3) mobiles les uns contre les autres en position fixée sont prévus.
  3. Barreau de grille selon la revendication 1 ou 2, caractérisé en ce que l'un des éléments (2, 3, 4) fait preuve d'une autre propriété mécanique et/ou est formé d'une autre matière et/ou comporte une autre matière qu'un autre des éléments (2, 3, 4).
  4. Elément de dépose (2) pour un barreau de grille (1) selon l'une quelconque des revendications 1 à 3, caractérisé par un tronçon d'assemblage destiné à être assemblé avec un élément de pied (4), le tronçon d'assemblage comportant une nervure (7) avec une partie d'un assemblage en queue d'aronde.
  5. Elément de pied (4) pour un barreau de grille (1) selon l'une quelconque des revendications 1 à 3, caractérisé par un tronçon d'assemblage (9) destiné à être assemblé avec un élément de dépose (2) selon la revendication 4, le tronçon d'assemblage (9) comportant une partie d'un assemblage en queue d'aronde et un pied, ainsi qu'une nervure d'assemblage (8, 10) s'étendant entre le tronçon d'assemblage (9) et le pied pour un élément de trajet de combustion (3) selon la revendication 5.
  6. Grille d'avancement d'un système d'incinération, pourvue de plusieurs barreaux de grille (1) selon l'une quelconque des revendications 1 à 3, placés en échelonnement.
  7. Grille d'avancement selon la revendication 7, caractérisé en ce que deux échelons structurés de manière modulaire sont de conception différente.
  8. Kit de barreaux de grille comprenant une pluralité d'éléments de dépose, d'éléments de trajet de combustion et d'éléments de pied des barreaux de grille selon l'une quelconque des revendications 1 à 3.
EP12002650.5A 2011-04-15 2012-04-16 Barreau de grille modulaire, élément de recouvrement et élément de base associé ainsi que la grille d'avance d'une installation de combustion Active EP2511609B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202011005341.5U DE202011005341U1 (de) 2011-04-15 2011-04-15 Modularer Roststab, Auflageelement, Brennbahnelement und Fußelement dafür sowie Vorschubrost einer Verbrennungsanlage
DE102011100369A DE102011100369A1 (de) 2011-04-15 2011-05-03 Modularer Roststab, Auflageelement, Brennbahnelement und Fußelement dafür sowie Vorschubrost einer Verbrennungsanlage

Publications (3)

Publication Number Publication Date
EP2511609A2 EP2511609A2 (fr) 2012-10-17
EP2511609A3 EP2511609A3 (fr) 2015-02-11
EP2511609B1 true EP2511609B1 (fr) 2020-12-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP12002650.5A Active EP2511609B1 (fr) 2011-04-15 2012-04-16 Barreau de grille modulaire, élément de recouvrement et élément de base associé ainsi que la grille d'avance d'une installation de combustion

Country Status (2)

Country Link
EP (1) EP2511609B1 (fr)
DE (1) DE102011100369A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202013009741U1 (de) 2013-12-02 2015-03-03 Wvt Breiding Gmbh Rostelement mit eingegossenem Keramikeinsatz sowie Vorschubrost
DE102014004660A1 (de) 2014-02-10 2015-08-13 Joachim Kümmel Verfahren zur Verbrennung von Abfall und Biomassen auf einem luftgekühlten Rost sowie Vorrichtung zur Durchführung des Verfahrens
DE102014008858A1 (de) 2014-06-16 2015-12-17 Joachim Kümmel Verfahren zur Verbrennung von Abfall und Biomassen auf einem Flossenwand-Stufenrost sowie Vorrichtung zur Durchführung des Verfahrens
CN106287743B (zh) * 2015-05-27 2018-11-30 南京凯盛国际工程有限公司 组合型炉排片结构
PL3798515T3 (pl) * 2015-06-12 2024-02-19 Hitachi Zosen Inova Ag Blok rusztowy do rusztu do spalania
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

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7521218U (de) * 1975-10-30 Claudius Peters Ag Rostplatte mit Verschleißteilen
CH663266A5 (de) * 1984-07-05 1987-11-30 Kuepat Ag Roststab fuer verbrennungsoefen.
DE9417829U1 (de) * 1994-11-07 1996-03-14 Babcock Materials Handling Division GmbH, 21614 Buxtehude Rostplatte für den Schubrost eines Kühlers
DE19504588B4 (de) * 1995-02-11 2006-07-13 Khd Humboldt Wedag Gmbh Rostplatte für Schubrostkühler zum Abkühlen von heißem Gut
DE10221981A1 (de) * 2002-05-17 2003-11-27 Kloeckner Humboldt Wedag Rostplatte für Schubrostkühler zum Abkühlen von heißem Gut
EP1975507A1 (fr) 2007-03-29 2008-10-01 ThyssenKrupp Xervon Energy GmbH Grille d'avance pour foyers de combustion
DE102009016523A1 (de) * 2009-04-08 2010-11-25 Baumgarte Boiler Systems Gmbh Roststab für einen Verbrennungsofen und Verfahren zur Herstellung eines Roststabes
DE102009042722A1 (de) 2009-09-23 2011-03-24 Thyssenkrupp Xervon Energy Gmbh Roststab

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP2511609A2 (fr) 2012-10-17
EP2511609A3 (fr) 2015-02-11
DE102011100369A1 (de) 2012-10-18

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