EP1574784B1 - grille à rouleaux - Google Patents

grille à rouleaux Download PDF

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Publication number
EP1574784B1
EP1574784B1 EP20050005107 EP05005107A EP1574784B1 EP 1574784 B1 EP1574784 B1 EP 1574784B1 EP 20050005107 EP20050005107 EP 20050005107 EP 05005107 A EP05005107 A EP 05005107A EP 1574784 B1 EP1574784 B1 EP 1574784B1
Authority
EP
European Patent Office
Prior art keywords
roller
grate
scraper mounting
rollers
cooling channels
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.)
Active
Application number
EP20050005107
Other languages
German (de)
English (en)
Other versions
EP1574784A1 (fr
Inventor
Bernhard Dr. Zimmermann
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.)
Hitachi Zosen Inova Steinmueller GmbH
Original Assignee
Steinmueller Babcock Environment 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 Steinmueller Babcock Environment GmbH filed Critical Steinmueller Babcock Environment GmbH
Publication of EP1574784A1 publication Critical patent/EP1574784A1/fr
Application granted granted Critical
Publication of EP1574784B1 publication Critical patent/EP1574784B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F23H15/00—Cleaning arrangements for grates; Moving fuel along grates

Definitions

  • the invention relates to a Walzenabstreifnam and a roller grate for operating a combustion system, in particular a waste incineration with a spaced axially parallel juxtaposed rotating rollers existing grate for the combustion, wherein the rollers gas passage openings for the introduction of air and / or gas into the combustion chamber or the Have combustion and between the adjacent rolls a gap is met, are provided in the wiper, which are mounted on a arranged below the gap Abstreifnum.
  • the scrapers which are usually made of scrap iron, serve to prevent or minimize slippage of combustion material through the spaces between the rollers.
  • the grate rollers of such roller grates have a roll shell formed from grate bars.
  • the allocation of the primary combustion air is carried out for each grate roller separately via air supply channels in the ash funnel, which are arranged below the roller grate.
  • the combustion air flows through the slots between the grate bars from below through the roller body and leaves this at the top also by slots between the grate bars.
  • Scrapers arranged in the storage spaces ensure that the grate bars are cleaned from buildup due to slag formation. Such scrapers are rigid and can be provided with brushes ( EP 01 57 920 ).
  • the object of the present invention is therefore to provide a roller grate, which avoids these disadvantages mentioned and prevents inadmissible thermal expansion of the scraper and Abstreifiva or reduced so that in this respect no malfunction of the roller grate are to be expected. According to the invention, this object is solved by the features of claims 1 and 5. Further advantageous embodiments of the invention are the subject of the respective dependent claims.
  • the invention includes a roller grate and a Walzenabstreifiva for a roller grate for operating an incinerator, in particular a waste incineration plant, wherein the roller grate from a spaced axially parallel juxtaposed rotating grate rollers existing conveyor grate for the Verbrgut is formed. Between the adjacent rolls a gap is maintained, are provided in the Walzenabstreifer, which are connected to the arranged below the gap Walzenabstreifja.
  • the roll strip carrier is designed to be coolable and to this end advantageously provided with means for applying a cooling medium.
  • the Abstreifzel is provided with cooling channels.
  • the cooling channels are arranged in the upper region of the Abstreifhers over its entire width.
  • the cooling channels are connected according to a further preferred feature of the invention with supply and return lines for the cooling medium.
  • the gap between the wipers and the rollers during assembly can be reduced by adjusting the wiper iron, whereby a reduced rust diameter and an improved primary air distribution is achieved.
  • roller grate is shown with a spaced axially parallel juxtaposed rotating grate rollers 1 existing conveyor grate for the combustion, wherein between the adjacent rolls 1, a gap is met, in which the Walzenabstreifer 2 are provided, which is connected to a arranged below the gap Walzenabstreifnam 3
  • the roller grate is preferably suitable for operating a combustion system, in particular a waste incineration plant.
  • the Abstreifpound 3 is coolable and provided with means for applying a cooling medium.
  • cooling channels 4 are provided over its entire width, which are connected to the supply and return lines 6, 7 for the cooling medium.
  • cooling medium cooling water is preferably used.
  • the cooling channels 4 can be acted upon only during the startup of the system or during the entire operation of the system with a cooling medium.
  • a cooling medium water is preferably used.
  • FIG. 2 a Walzenabstreifcum 3 is shown in section.
  • the cooling channels 4 are formed here over the entire width of the Abstreifnums 3.
  • On the sides of the supply and return lines 6, 7 are arranged for the cooling medium. The flow reversal takes place on the opposite side.
  • the two cooling channels 4 each have separate supply and return lines, which can be cooled both in DC and in countercurrent.
  • the supply and return lines can be provided in the middle of the Abstreifja, with the flow reversal can be done on both sides. It is also possible to provide only the supply or return line in the middle and rear or supply lines to arrange on both sides.

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 (5)

  1. Porte-racleur de rouleaux pour une grille à rouleaux pour l'opération d'une installation d'incinération, où le porte-racleur de rouleaux (3) est adapté à être refroidi et équipé de moyens (4, 6, 7) pour appliquer un fluide de refroidissement, caractérisé en ce que le porte-racleur de rouleaux (3) est équipé de canaux de refroidissement (4).
  2. Porte-racleur de rouleaux selon la revendication 1, caractérisé en ce que les canaux de refroidissement (4) sont disposés dans la région supérieure du porte-racleur (3) sur toute sa largeur.
  3. Porte-racleur de rouleaux selon l'une quelconque des revendications précédentes, caractérisé en ce que les canaux de refroidissement (4) sont reliés à des conduits d'arrivée et de retour (6, 7) pour le fluide de refroidissement.
  4. Porte-racleur de rouleaux selon l'une quelconque des revendications précédentes, caractérisé en ce que les canaux de refroidissement (4) comportent un mécanisme d'inversion de l'écoulement.
  5. Grille à rouleaux pour l'opération d'une installation d'incinération, en particulier d'une installation d'incinération d'ordures, avec une grille de transport pour les matériaux à incinérer composée de rouleaux de grille (1) rotatifs disposés côte-à-côte, à distance l'un de l'autre, leurs axes étant parallèles, où un espace intermédiaire est prévu entre les rouleaux (1) adjacents dans lequel se trouvent des racleurs de rouleaux (2) connectés avec un porte-racleur de rouleaux (3) selon les revendications 1 à 4 disposé sous l'espace intermédiaire.
EP20050005107 2004-03-09 2005-03-09 grille à rouleaux Active EP1574784B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004011834 2004-03-09
DE200410011834 DE102004011834A1 (de) 2004-03-09 2004-03-09 Walzenrost

Publications (2)

Publication Number Publication Date
EP1574784A1 EP1574784A1 (fr) 2005-09-14
EP1574784B1 true EP1574784B1 (fr) 2015-04-29

Family

ID=34813652

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20050005107 Active EP1574784B1 (fr) 2004-03-09 2005-03-09 grille à rouleaux

Country Status (2)

Country Link
EP (1) EP1574784B1 (fr)
DE (1) DE102004011834A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2045115A (en) * 1930-07-03 1936-06-23 John E Allen Refuse destructor
FR1286528A (fr) * 1961-04-21 1962-03-02 Stadt Duesseldorf Installation d'incinération d'ordures ménagères
DE1164014B (de) * 1962-05-25 1964-02-27 Ver Kesselwerke Ag Rostwalze fuer Walzenrost zur Muellverbrennung
DE3316363A1 (de) * 1983-05-05 1984-11-08 Deutsche Babcock Anlagen Ag, 4200 Oberhausen Walzenrost fuer muellverbrennungsanlagen
DE3420020A1 (de) * 1983-12-23 1985-07-04 Müllverbrennungsanlage Wuppertal GmbH, 5600 Wuppertal Roststab sowie rostwalze fuer den walzenrost z.b. einer muellverbrennungsanlage oder dergleichen
US5027719A (en) * 1990-02-28 1991-07-02 Wellons, Inc. Rotary grate for a solid fuel furnace
DE4418924C2 (de) * 1993-01-13 1997-04-24 Rbu Rolf Becker Gmbh Ingenieur Verbrennungskessel mit einstellbaren Dichtelementen an einem Walzenrost

Also Published As

Publication number Publication date
EP1574784A1 (fr) 2005-09-14
DE102004011834A1 (de) 2005-10-06

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