EP0170803A1 - Barreau de grille pour foyers d'incinération - Google Patents

Barreau de grille pour foyers d'incinération Download PDF

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Publication number
EP0170803A1
EP0170803A1 EP85106078A EP85106078A EP0170803A1 EP 0170803 A1 EP0170803 A1 EP 0170803A1 EP 85106078 A EP85106078 A EP 85106078A EP 85106078 A EP85106078 A EP 85106078A EP 0170803 A1 EP0170803 A1 EP 0170803A1
Authority
EP
European Patent Office
Prior art keywords
parts
grate bar
rod
grate
bar according
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.)
Withdrawn
Application number
EP85106078A
Other languages
German (de)
English (en)
Inventor
Hans Künstler
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.)
Kuepat AG
Original Assignee
Kuepat 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
Application filed by Kuepat AG filed Critical Kuepat AG
Publication of EP0170803A1 publication Critical patent/EP0170803A1/fr
Withdrawn legal-status Critical Current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
    • F23H17/00—Details of grates
    • F23H17/12—Fire-bars
    • 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
    • F23G5/002—Incineration of waste; Incinerator constructions; Details, accessories or control therefor characterised by their 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
    • F23H2900/17001—Specific materials therefor
    • 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 for incinerators, in particular waste incineration plants.
  • the grate of such incinerators is usually formed by rows of grate bars which extend transversely to the direction of transport of the material to be fired and are in the manner of roof tiles; such a grate is described for example in CH-PS 567 230.
  • the grate bars in waste incineration plants are exposed to both thermally and mechanically considerably higher loads than those in coal-fired power plants, since the firing material of these plants constantly varies in size, weight, calorific value, burning behavior, etc.
  • the service life of grate bars which can be very different depending on the fuel composition in the individual combustion plants, is of great interest due to the operating costs and the annual availability of the entire plant.
  • the problem is that the loads on the grate bars are different.
  • the material must be elastic enough to withstand, for example, the fall of a concrete block or engine block between the grate bed steps.
  • elastic material does not have the surface hardness that is desirable for a long service life.
  • the load on the grate bar is also very different mechanically and thermally on the bar head part and bar support part.
  • the invention therefore aims to provide a grate bar of the type mentioned, in which at least the carrier part and the head part optimally meet the requirements placed on them.
  • the grate bar according to the invention is characterized in that at least the support part and head part of the bar are separately manufactured and interconnected parts.
  • connection of the grate bar parts can be releasable and can be either non-positive or positive; but a firm weld connection of the rod parts is also conceivable.
  • these parts can consist of different materials adapted to the load that occurs; this makes it possible to keep the service life of the differently loaded parts approximately the same. But it is also possible to wear out the mostly greater wear replace the head part with a detachable connection of the parts if necessary, without the support part and / or a separate foot part also having to be replaced, as a result of which the operating costs of the incinerator can be considerably reduced.
  • the grate section shown in FIGS. 1 and 2 consists of alternately successive rows of stationary and movable grate bars 1a and 1b.
  • Carrier part 2a and head part 2b of each rod 1a, 1b are separately manufactured but firmly connected elements. As can be seen from FIGS.
  • the dividing line of the back parts of the carrier part 1a and the head part 2b lies at the location of the greatest possible overlap of two successive rods 1a, 1b.
  • This grate structure means that the support part 2a of the grate bars should be particularly abrasion and impact resistant, while the thermal and chemical / physical stress is greatest on the head part 2b, which is provided with air outlet openings on the front and where the main combustion zone is therefore located.
  • the two grate bar parts are made of correspondingly different material and / or are releasably connected to one another in such a way that the grate bar part, which is subject to greater wear and tear, mostly the head part, can be replaced without the same whole grate bar needs to be replaced.
  • the front side is the provided from the foot 5 centrally upwardly projecting web 6 of the support part 2a with conical bores 7a in the Figure, in which corresponding conical pin 7b at the inner side of the back 8 of the;.
  • Ko p fteils 2b are firmly pressed in.
  • This back 8 also has rearwardly projecting flanges 9 which overlap the web 6 of the carrier part 2a.
  • the back 8 of the head part 2b abuts with a rear, oblique butt surface 10a against a correspondingly oblique front butt surface 10b of the back 11 of the carrier part 2a.
  • the abutting surfaces 10a, 10b could also run obliquely to the bar back 11, 8 or to the other side. If necessary, the two rod parts 2a, 2b can be separated easily.
  • the two rod parts 2a, 2b are detachably connected to one another by means of a threaded bolt 17 passing through the flanges 9 and the web 6.
  • a threaded bolt 17 passing through the flanges 9 and the web 6.
  • a riveted connection is of course also possible. Since in this example as well the butt surface 10a of the back 8 engages under the butt surface 10b of the back 11, pivoting of the rod part 2b which is only fixed to the rod part 2a by the bolt 17 is impossible, while lateral displacement of the rod part 2b is not only by the bolt fixation (nut or pin), but mainly because of the engagement of the web 6 between the flanges 9 is impossible.
  • two spaced-apart webs could also be provided, between which (instead of the flanges 9) there is a corresponding central flange on the rod part 2a.
  • two ribs 6a parallel to the abutting surfaces 10a, 10b are provided for the releasable connection of the two rod parts 2a, 2b on the web 5 of the rod part 2a, which engage in corresponding grooves 9a of the flanges 9 of the rod part 2b.
  • additional securing with a cross bolt or pin would also be possible here.
  • the ribs could also be provided on the flanges 9 and the grooves on the web 6.
  • two end flanges 12 which are aligned with the flanges 9 and overlap the web 6 of the rod part 2a, are provided on the back end of the rod part 2b having the abutting surface 10.
  • Such end flanges 12 are also provided in the example according to FIGS. 12 to 14, while the flanges 9 are missing here.
  • a split pin 27 passing through the end flanges 12 and the web 6 connects the two rod parts 2a, 2b, a hook 8a provided at the lower end of the back 8 of the rod part 2b in a corresponding recess 5a in the base 5 of the rod part which extends into the web 6 2a engages.
  • the rod part 2b can be pivoted out of engagement with the rod part 2a after removal of the split pin 27.
  • the two rod parts 2a, 2b are detachably connected to one another by a force or form fit. Assembly and, e.g. disassembly of the rod parts necessary to replace one or the other rod part is thus possible in a simple manner.
  • the rod parts can also be replaced by e.g. weld seam attached between flanges 9 and web 6 can be connected to one another. If necessary, such a weld connection can also be released again.
  • the two rod parts could also be permanently connected to one another; However, this is only useful if the two rod parts have the same service life despite different loads due to a suitable choice of material.
  • the main purpose of the two-part grate rod is that the different parts of the rod exposed to stress can either be produced from the materials that best withstand these loads and / or that the rod part that is exposed to greater wear can be replaced while the other rod part is used. If the two rod parts are detachably connected to one another, it has proven to be expedient to make this connection relatively loose, so as to enable the thermally differently loaded rod parts to be subjected to unimpeded thermal expansion.
  • the multi-part design of the grate bar according to the invention allows the individual parts to be made from the most appropriate material.
  • materials e.g. Sintered material, stainless steel (cast or sheet metal), ceramic and corundum material, pure metals (e.g. titanium), carbon fiber reinforced plastics, surface-coated metals or plastics etc. can be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Incineration Of Waste (AREA)
  • Cookers (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Control Of Combustion (AREA)
  • Solid-Fuel Combustion (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
EP85106078A 1984-07-05 1985-05-17 Barreau de grille pour foyers d'incinération Withdrawn EP0170803A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3255/84A CH663266A5 (de) 1984-07-05 1984-07-05 Roststab fuer verbrennungsoefen.
CH3255/84 1984-07-05

Publications (1)

Publication Number Publication Date
EP0170803A1 true EP0170803A1 (fr) 1986-02-12

Family

ID=4252019

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85106078A Withdrawn EP0170803A1 (fr) 1984-07-05 1985-05-17 Barreau de grille pour foyers d'incinération

Country Status (7)

Country Link
EP (1) EP0170803A1 (fr)
JP (1) JPS6124912A (fr)
AU (1) AU4460185A (fr)
CH (1) CH663266A5 (fr)
ES (1) ES296075Y (fr)
FI (1) FI852592L (fr)
NO (1) NO852685L (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0382045A2 (fr) * 1989-02-08 1990-08-16 Officine Metalmeccaniche Nova S.P.A. Barreau de grille avec élément de protection en matière céramique ou en matière équivalente de résistance élevée au feu et à l'usure
DE4105330C1 (fr) * 1991-02-18 1992-08-06 Noell - K + K Abfalltechnik Gmbh, 4040 Neuss, De
FR2694376A1 (fr) * 1992-07-31 1994-02-04 A3C Metal Barreau pour grille d'incinération d'ordures ménagères.
EP0870988A2 (fr) * 1997-04-09 1998-10-14 ECM Ingenieur-Unternehmen für Energie-und Umwelttechnik GmbH Grille de combustion et éléments pour sa fabrication
FR2894012A1 (fr) * 2005-11-28 2007-06-01 Cometal France Sarl Barreau pour grille de four d'incineration
CN102449398A (zh) * 2009-04-08 2012-05-09 鲍姆加特博易勒系统有限公司 用于焚烧炉的炉条和生产该炉条的方法
EP2511609A3 (fr) * 2011-04-15 2015-02-11 WVT Breiding GmbH Barreau de grille modulaire, élément de recouvrement, élément de bande combustible et élément de base associé ainsi que la grille d'avance d'une installation de combustion
CH713352A1 (de) * 2017-01-12 2018-07-13 I C E Ag Rostblock für einen Rost einer Verbrennungsanlage.
FR3084444A1 (fr) * 2018-07-27 2020-01-31 Europeenne De Services Techniques Pour L'incineration Procede de midification d'une grille de four d'incineration, elements support de sommier et four d'incineration
DE102019129171A1 (de) * 2019-10-29 2021-04-29 Alite Gmbh Roststab für Stufenrost
CN114777101A (zh) * 2022-03-21 2022-07-22 陕西飞机工业有限责任公司 一种燃煤蒸汽锅炉炉排防跑偏报警装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100226989B1 (ko) * 1996-11-27 1999-10-15 장병주 스토커식 소각로의 화격자 마모 방지 시스템
KR100658400B1 (ko) 2005-09-02 2006-12-26 에스엠메탈(주) 소각로용 화격자구조
GB2483479A (en) 2010-09-09 2012-03-14 Tiska Gmbh Furnace grate bars

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1134329B (de) * 1961-01-02 1962-08-02 Peters Ag Claudius Stufen-Rostkuehler, insbesondere Vorschubstufenrostkuehler
GB1110393A (en) * 1964-10-07 1968-04-18 Abex Corp Cooling grates
FR2386003A1 (fr) * 1977-04-01 1978-10-27 Peters Ag Claudius Plaque de grille en deux elements pour grilles d'alimentation de combustion et de refroidissement
US4201545A (en) * 1977-03-31 1980-05-06 Dieter Riechert Grate with replaceable wear elements
US4306139A (en) * 1978-12-28 1981-12-15 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Method for welding hard metal

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1134329B (de) * 1961-01-02 1962-08-02 Peters Ag Claudius Stufen-Rostkuehler, insbesondere Vorschubstufenrostkuehler
GB1110393A (en) * 1964-10-07 1968-04-18 Abex Corp Cooling grates
US4201545A (en) * 1977-03-31 1980-05-06 Dieter Riechert Grate with replaceable wear elements
FR2386003A1 (fr) * 1977-04-01 1978-10-27 Peters Ag Claudius Plaque de grille en deux elements pour grilles d'alimentation de combustion et de refroidissement
US4306139A (en) * 1978-12-28 1981-12-15 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Method for welding hard metal

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0382045A2 (fr) * 1989-02-08 1990-08-16 Officine Metalmeccaniche Nova S.P.A. Barreau de grille avec élément de protection en matière céramique ou en matière équivalente de résistance élevée au feu et à l'usure
EP0382045A3 (fr) * 1989-02-08 1991-05-15 Officine Metalmeccaniche Nova S.P.A. Barreau de grille avec élément de protection en matière céramique ou en matière équivalente de résistance élevée au feu et à l'usure
DE4105330C1 (fr) * 1991-02-18 1992-08-06 Noell - K + K Abfalltechnik Gmbh, 4040 Neuss, De
US5245983A (en) * 1991-02-18 1993-09-21 Noell K+K Abfalltechnik Gmbh Grate bar and grate for combustion plants
FR2694376A1 (fr) * 1992-07-31 1994-02-04 A3C Metal Barreau pour grille d'incinération d'ordures ménagères.
BE1009981A3 (fr) * 1992-07-31 1997-11-04 A3C Metal Sa Barreau pour grille d'incineration d'ordures menageres.
EP0870988A2 (fr) * 1997-04-09 1998-10-14 ECM Ingenieur-Unternehmen für Energie-und Umwelttechnik GmbH Grille de combustion et éléments pour sa fabrication
EP0870988A3 (fr) * 1997-04-09 1999-02-03 ECM Ingenieur-Unternehmen für Energie-und Umwelttechnik GmbH Grille de combustion et éléments pour sa fabrication
FR2894012A1 (fr) * 2005-11-28 2007-06-01 Cometal France Sarl Barreau pour grille de four d'incineration
CN102449398A (zh) * 2009-04-08 2012-05-09 鲍姆加特博易勒系统有限公司 用于焚烧炉的炉条和生产该炉条的方法
US9038550B2 (en) 2009-04-08 2015-05-26 Baumgarte Boiler Systems Gmbh Grate bar for an incinerator and method for producing such a grate bar
EP2511609A3 (fr) * 2011-04-15 2015-02-11 WVT Breiding GmbH Barreau de grille modulaire, élément de recouvrement, élément de bande combustible et élément de base associé ainsi que la grille d'avance d'une installation de combustion
CH713352A1 (de) * 2017-01-12 2018-07-13 I C E Ag Rostblock für einen Rost einer Verbrennungsanlage.
FR3084444A1 (fr) * 2018-07-27 2020-01-31 Europeenne De Services Techniques Pour L'incineration Procede de midification d'une grille de four d'incineration, elements support de sommier et four d'incineration
DE102019129171A1 (de) * 2019-10-29 2021-04-29 Alite Gmbh Roststab für Stufenrost
US11815265B2 (en) 2019-10-29 2023-11-14 Ikn Gmbh Grate bar for stepped grate
CN114777101A (zh) * 2022-03-21 2022-07-22 陕西飞机工业有限责任公司 一种燃煤蒸汽锅炉炉排防跑偏报警装置

Also Published As

Publication number Publication date
FI852592A0 (fi) 1985-06-28
ES296075Y (es) 1988-01-16
JPS6124912A (ja) 1986-02-03
ES296075U (es) 1987-07-16
FI852592L (fi) 1986-01-06
AU4460185A (en) 1986-01-09
NO852685L (no) 1986-01-06
CH663266A5 (de) 1987-11-30

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19861013

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Inventor name: KUENSTLER, HANS