EP0124826B1 - Grille sous forme de rouleau pour usines d'incinération - Google Patents

Grille sous forme de rouleau pour usines d'incinération Download PDF

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Publication number
EP0124826B1
EP0124826B1 EP84104631A EP84104631A EP0124826B1 EP 0124826 B1 EP0124826 B1 EP 0124826B1 EP 84104631 A EP84104631 A EP 84104631A EP 84104631 A EP84104631 A EP 84104631A EP 0124826 B1 EP0124826 B1 EP 0124826B1
Authority
EP
European Patent Office
Prior art keywords
grate
central
bars
bar
cylindrical
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
Application number
EP84104631A
Other languages
German (de)
English (en)
Other versions
EP0124826A2 (fr
EP0124826A3 (en
Inventor
Anton Esser
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.)
Deutsche Babcock Anlagen AG
Original Assignee
Deutsche Babcock Anlagen AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6198185&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0124826(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Deutsche Babcock Anlagen AG filed Critical Deutsche Babcock Anlagen AG
Priority to AT84104631T priority Critical patent/ATE28504T1/de
Publication of EP0124826A2 publication Critical patent/EP0124826A2/fr
Publication of EP0124826A3 publication Critical patent/EP0124826A3/de
Application granted granted Critical
Publication of EP0124826B1 publication Critical patent/EP0124826B1/fr
Expired 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
    • F23H9/00—Revolving-grates; Rocking or shaking grates
    • F23H9/02—Revolving cylindrical grates
    • 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
    • F23H3/00—Grates with hollow bars
    • F23H3/02—Grates with hollow bars internally cooled

Definitions

  • the invention relates to a roller grate according to the preamble of claim 1.
  • Roller grates are used in waste incineration plants, in particular for the combustion of solid waste, e.g. Household waste, used.
  • a roller grate consists of several grate rollers that are arranged in steps one behind the other and rotate slowly and in the same direction. The garbage is placed on the top grate roller, the rotation of the grate rollers means that it is transported and circulated during combustion.
  • the grate rollers are covered on their circumference with grate bars, between which there are air slots for the combustion air. This is usually introduced axially into the grate rollers and then emerges radially through the air slots on the combustion chamber side. It also serves as cooling air for the grate bars.
  • grate bars are used for covering: The majority of the grate surface is formed by middle grate bars suspended between grate bar supports, which are locked in segments with fixed point bars that are screwed onto the grate bar supports from the inside of the roller.
  • the grate bars are exposed to heavy loads during operation, which is why they are subject to high wear, the height of which increases disproportionately with the temperature of the grate bars.
  • occasional mechanical damage to the grate bars from components of the waste cannot be avoided. Wear and damage force the grate bars to be replaced regularly (possibly also irregularly).
  • a generic roller grate is described in DE-PS 11 64 014.
  • the roller grate consists of grate rollers with internals, through which the dripping metals are caught inside the grate roller.
  • the aim is to prevent the air slots on the side facing away from the combustion chamber from becoming blocked. No information is given on how to prevent the clogging of the air slots on the combustion chamber side.
  • a grate roller is known from US Pat. No. 3,469,544, which is covered with different central grate bars.
  • central grate bars the heads of which are laterally toothed or wave-shaped, those with straight sides are also used on the axial edges of the grate rollers. It is not shown how the central grate bars are attached to the roller.
  • the example of a central grate bar has serrated grate bars and no spacers.
  • the invention has for its object to shorten the downtime of the roller grate forced by repair work on the grate roller coverings.
  • the central grate bars execute relative movements in the longitudinal direction against one another during operation. This prevents clogging of the air slots between the grate bars due to caking.
  • the feature of claim 2 leads to better cooling of the central grate bars with favorable effects on wear.
  • the combustion air can be supplied with the combustion air in a targeted and uniform manner.
  • the feature of claim 4 enables quick and easy replacement of the grate bars from the combustion chamber side.
  • the feature of claim 6 prevents liquid metals from flowing into the interior of the grate roller.
  • the central grate bars 5 thus form the Sheathing the grate roller 1.
  • the outer surfaces 9.1 of the central grate bars 5 run on parallel, circumferential circular paths (grate burn paths), between which there are air slots 6. ( Figure 1).
  • the central grate bars 5 have a substantially T-shaped cross section, their longitudinal section essentially represents a circular section, the outer boundary line of which follows the circumference of the grate roller 1. ( Figure 3 and Figure 4).
  • the outer surface 9.1 of a grate rod head 9 is smooth and flat - it forms part of the grate fire surface - and its side surfaces 9.2 are smooth and run in a straight line.
  • the abutting side surfaces 9.2 of two axially adjacent central grate bars 5 are kept at a distance by spacers 10, which are located on both sides on the long sides of the central grate bars 5; this creates the air slot 6 between them.
  • the abutting surfaces 10.1 of the spacers 10 are smooth and flat.
  • the circumferential grate combustion tracks are formed by fixed point rods 11 (FIG. 1), which are screwed onto the grate rod support 4 instead of the suspended central grate rods 5. You lock the central grate bars 5, and since the grate bar supports 4 are interrupted in the area of the fixed point bars 11, the grate roller 1 is divided into segments.
  • the fixed point rods 11 are also curved in the longitudinal direction according to the circumference of the grate roller 1 (FIG. 5). On the front side they have a projection 12 which, after assembly, fits into a corresponding recess 13 at the foot end of the radially adjacent fixed point rod 11. The fit extends over the entire width of the fixed point rod 11, so there are no continuous vertical gaps at the transition point between two fixed point rods 11. In this way, the fit is secured against the passage of liquid metals.
  • the focal surface 15 of the fixed point rods 11 additionally has openings 16 for the combustion air.
  • grate bars 5 of different widths when building up a grate roller, e.g. narrower central grate bars in the central area of the grate roller than in their edge areas (FIG. 2), the supply of the combustion air into the fuel bed can be specifically controlled transversely to the transport direction. It is also possible to provide the individual grate rollers 1 of a roller grate with differently structured grate coverings in order to additionally optimize the combustion air supply in the direction of transport of the waste.
  • the individual grate rollers 1 rotate in the direction of descent.
  • the waste is added to the top grate roller 1, it is transported and circulated during the combustion.
  • the combustion air flows axially into the grate rollers 1 and exits radially through the air slots 6 and the openings 16 in the fixed-point rods 11 on the upper side (combustion chamber side).
  • a good heat transfer is guaranteed by the large surface area of the cooling fins, so that the central grate bars 5 are adequately cooled even with a high proportion of bulky waste. Due to the lower temperature of the grate during combustion, the wear is significantly reduced and the service life of the grate bars is extended considerably.
  • the grate rollers 1 are loaded differently over their axial length. This leads to relative movements of the central grate bars 5 against one another along the grate combustion tracks. Clogging of the air slots 6 by baking metals is prevented.
  • the fixed point rods 11 can be loosened from the combustion chamber side.
  • the suspended central grate bars 5 can then simply be pulled out and replaced. This leads to a significant reduction in the downtime of the roller grate caused by repairs to the grate covering.

Landscapes

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

Claims (6)

1. Grille en forme de rouleau pour installations d'incinération d'ordures, avec des rouleaux creux cylindriques (rouleaux de grille), dont l'enveloppe (garnissage de grille) est formée essentiellement par des barreaux de grille avec les
caractéristiques suivantes (barreaux de grille médians),
a) ils sont accrochés transversalement entre des supports de barreaux de grille (4) parallèles à l'axe du rouleau, une fente à air existant alors entre deux barreaux de grille médians (5) situés côte à côte suivant la direction axiale,
b) les surfaces latérales (9.2) des têtes de barreau de grille (9) sont lisses et s'étendent en ligne droite,

caractérisée en ce
c) que les deux côtés longitudinaux des barreaux de grille médians (5) présentent des éléments d'écartement (10) avec des surfaces de rencontre planes et lisses (10.1),
- et en ce qu'entre le support de barreau de grille (4) et le pied de barreau de grille (7) du barreau de grille médian (5), il existe un jeu qui, à la température d'exploitation, atteint au moins 1 mm.
2. Grille en forme de rouleau suivant la revendication 1, caractérisée en ce que le rapport des superficies de nervures de refroidissement d'un barreau de grille médian (5) avec sa surface de voie de combustion atteint au moins 8:1.
3. Grille en forme de rouleau suivant la revendication 1 ou 2, caractérisée en ce que le rouleau de grille (1) présente au voisinage de ses bords latéraux, des barreaux de grille médians (5) plus larges que dans sa zone médiane.
4. Grille en forme de rouleau suivant une des revendications 1 - 3, caractérisée en ce que dans les rouleaux de grille (1), le long de cercles périphériques parallèles, les barreaux de grille médians (5) sont remplacés par des barreaux de point fixe (11), qui sont fixés sur leur côté de pied, sur le support de barreau de grille (4) par un élément de liaison (14) libérable depuis le côté externe (côté de foyer) et présentent un évidement (13), dans lequel est adaptée une saillie (12) sur le côté frontal du barreau de point fixe (11) limitrophe radialement.
5. Grille en forme de barreau suivant la revendication 4, caractérisée en ce que la surface de combustion (15) du barreau de point fixe (11) présente des ouvertures (16).
6. Grille en forme de barreau suivant la revendication 4 ou 5, caractérisée en ce que l'adaptation de la saillie (12) sur la face frontale dans l'évidement (13) du côté de pied, a lieu sur toute la largeur du barreau de point fixe (11).
EP84104631A 1983-05-05 1984-04-25 Grille sous forme de rouleau pour usines d'incinération Expired EP0124826B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84104631T ATE28504T1 (de) 1983-05-05 1984-04-25 Walzenrost fuer muellverbrennungsanlagen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3316363A DE3316363A1 (de) 1983-05-05 1983-05-05 Walzenrost fuer muellverbrennungsanlagen
DE3316363 1983-05-05

Publications (3)

Publication Number Publication Date
EP0124826A2 EP0124826A2 (fr) 1984-11-14
EP0124826A3 EP0124826A3 (en) 1985-05-29
EP0124826B1 true EP0124826B1 (fr) 1987-07-22

Family

ID=6198185

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84104631A Expired EP0124826B1 (fr) 1983-05-05 1984-04-25 Grille sous forme de rouleau pour usines d'incinération

Country Status (4)

Country Link
US (1) US4537139A (fr)
EP (1) EP0124826B1 (fr)
AT (1) ATE28504T1 (fr)
DE (2) DE3316363A1 (fr)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3341835A1 (de) * 1983-11-19 1985-05-30 Deutsche Babcock Anlagen Ag, 4200 Oberhausen Rostbelag fuer feuerungsroste mit umlaufend bewegten rostbrennbahnen
DK0396908T3 (da) * 1989-05-10 1994-09-19 Babcock Anlagen Gmbh Riststav og ristvalse
FR2647532B1 (fr) * 1989-05-25 1991-09-06 Picard Fours Rouleau de grille de foyer, notamment pour incineration de dechets, avec un garnissage tubulaire forme d'anneaux de barreaux separes par des intervalles de soufflage de largeur maintenue
DE4300636C1 (de) * 1993-01-13 1994-07-14 Rbu Rolf Becker Gmbh Ingieneur Walzenrost zum Betrieb eines Verbrennungskessels
EP0981021A1 (fr) * 1998-08-19 2000-02-23 Asea Brown Boveri AG Grille pour incinérateurs
AT410128B (de) * 2000-11-08 2003-02-25 Ferdinand Dipl Ing Tischler Rost für feste brennstoffe
DE10114178A1 (de) 2001-03-23 2002-10-10 Aventis Pharma Gmbh Zinkfreie und zinkarme Insulinzubereitungen mit verbesserter Stabilität
DE10227232A1 (de) 2002-06-18 2004-01-15 Aventis Pharma Deutschland Gmbh Saure Insulinzubereitungen mit verbesserter Stabilität
DE102004011834A1 (de) 2004-03-09 2005-10-06 Fisia Babcock Environment Gmbh Walzenrost
CH697973B1 (de) * 2005-06-10 2009-04-15 Alstom Technology Ltd Rostwalze.
DE102007033825B4 (de) * 2007-07-18 2021-05-20 Nippon Steel & Sumikin Engineering Co., Ltd. Walzenrost mit Hydraulikantrieb und ein Verfahren zum Betreiben des Walzenrostes
FR2930627B1 (fr) 2008-04-28 2010-06-04 Vinci Environnement Rouleau pour grille de four equipe d'un circuit de refroidissement
RU2371636C1 (ru) * 2008-06-20 2009-10-27 Государственное научное учреждение Всероссийский научно-исследовательский институт ветеринарной санитарии, гигиены и экологии Российской академии сельскохозяйственных наук (ГНУ ВНИИВСГЭ РОССЕЛЬХОЗАКАДЕМИИ) Устройство для сжигания инфицированных и токсичных отходов
WO2011003820A1 (fr) 2009-07-06 2011-01-13 Sanofi-Aventis Deutschland Gmbh Préparations d'insuline stables à la chaleur et aux agitations
PL2451437T3 (pl) 2009-07-06 2017-05-31 Sanofi-Aventis Deutschland Gmbh Wodne preparaty insuliny zawierające metioninę
US20120232002A1 (en) 2009-07-06 2012-09-13 Sanofi-Aventis Deutschland Gmbh Slow-acting insulin preparations
NZ599847A (en) 2009-11-13 2013-09-27 Sanofi Aventis Deutschland Pharmaceutical composition comprising a glp-1 agonist and methionine
US9707275B2 (en) 2012-12-19 2017-07-18 Wockhardt Limited Stable aqueous composition comprising human insulin or an analogue or derivative thereof
JP2016505601A (ja) 2012-12-26 2016-02-25 ウォックハート リミテッド 医薬組成物
US20160271226A1 (en) 2013-09-30 2016-09-22 Wockhardt Limited Pharmaceutical composition
WO2016001862A1 (fr) 2014-07-04 2016-01-07 Wockhardt Limited Formulations à libération prolongée d'insulines
PL232801B1 (pl) * 2017-03-14 2019-07-31 Pellasx Spolka Z Ograniczona Odpowiedzialnoscia Spolka Komandytowa Ruszt komory paleniskowej palnika do spalania pelletów, agropelletów i innych podobnego typu paliw stałych
KR102898639B1 (ko) * 2025-08-12 2025-12-12 한종산업개발 주식회사 원통형 회전 화격자를 갖는 소각로

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE206353C (fr) *
GB191209555A (en) * 1912-04-23 1913-03-27 Joseph Ernst Fletcher Improvements in Furnace Grates.
US1831816A (en) * 1929-10-26 1931-11-17 Charles B Magrath Heating device
US2501763A (en) * 1945-03-26 1950-03-28 Charles T Denker Solid fuel furnace of the rotary grate progressive feed type
FR1214713A (fr) * 1958-02-01 1960-04-11 Metallgesellschaft Ag Construction de barreaux de grille
DE1164014B (de) * 1962-05-25 1964-02-27 Ver Kesselwerke Ag Rostwalze fuer Walzenrost zur Muellverbrennung
DE1260665B (de) * 1967-05-23 1968-02-08 Ver Kesselwerke Ag Rostbelag fuer die Rostwalzen eines Walzenrostes in Muellverbrennungsanlagen
DE2839536C3 (de) * 1978-09-11 1981-10-15 Rheinische Eisengießerei Wilhelm Pulch KG, 4030 Ratingen Roststab für Walzenroste einer Verbrennungsanlage
CH637198A5 (de) * 1979-03-14 1983-07-15 Widmer & Ernst Ag Feuerungsrost fuer verbrennungsoefen.

Also Published As

Publication number Publication date
US4537139A (en) 1985-08-27
ATE28504T1 (de) 1987-08-15
DE3316363A1 (de) 1984-11-08
DE3464956D1 (en) 1987-08-27
EP0124826A2 (fr) 1984-11-14
DE3316363C2 (fr) 1991-10-17
EP0124826A3 (en) 1985-05-29

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