EP0382045A2 - Roststab mit Schutzteil aus keramischem Material oder aus gleichwertigem Material hoher Wärmebeständigkeit und Verschleissfestigkeit - Google Patents

Roststab mit Schutzteil aus keramischem Material oder aus gleichwertigem Material hoher Wärmebeständigkeit und Verschleissfestigkeit Download PDF

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Publication number
EP0382045A2
EP0382045A2 EP90101756A EP90101756A EP0382045A2 EP 0382045 A2 EP0382045 A2 EP 0382045A2 EP 90101756 A EP90101756 A EP 90101756A EP 90101756 A EP90101756 A EP 90101756A EP 0382045 A2 EP0382045 A2 EP 0382045A2
Authority
EP
European Patent Office
Prior art keywords
grate bar
grate
ceramic material
lower element
constructed
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.)
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Application number
EP90101756A
Other languages
English (en)
French (fr)
Other versions
EP0382045A3 (de
Inventor
Livio Crippa
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.)
OFFICINE METALMECCANICHE NOVA SpA
Original Assignee
OFFICINE METALMECCANICHE NOVA SpA
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 OFFICINE METALMECCANICHE NOVA SpA filed Critical OFFICINE METALMECCANICHE NOVA SpA
Publication of EP0382045A2 publication Critical patent/EP0382045A2/de
Publication of EP0382045A3 publication Critical patent/EP0382045A3/de
Withdrawn legal-status Critical Current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
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H2900/00—Special features of combustion grates
    • F23H2900/17001—Specific materials therefor

Definitions

  • This industrial invention patent relates to a a grate bar for furnaces, particularly but not exclusively for the incineration of solid urban refuse and/or equivalent materials.
  • Incineration furnaces for solid urban refuse are provided in particular with a grated combustion section which automatically feeds and burns the refuse.
  • grate The most widespread type of grate is the reciprocating type, and is conventionally composed of a fixed frame and a mobile frame which is driven with reciprocating motion by suitable means.
  • the purpose of the mobile frame is to support rows of grate bars which form a bed for the refuse or other material.
  • the rows of grate bars are arranged in cascade and are alternately connected to the fixed frame and to the mobile frame so as to feed the fuel and then discharge it in the form of ash.
  • the grate bars are currently constructed from cast iron of high temperature resistance and are subject to considerable erosion due to their rubbing against each other and against the overlying material, in addition to being obviously exposed to the flame so that they are also subject to rapid oxidation.
  • the main object of the present invention is to provide a grate bar for furnaces which is formed in such a manner as to have a considerable life, with consequent reduction in the furnace operating costs, in addition to determining a reduction in construction costs compared with the costs of the current version completely of cast iron.
  • the body of a cast iron grate bar reaches a relatively high temperature because of the high conductivity of cast iron.
  • cast iron of special characteristics has to be used to simultaneously obtain load-bearing capacity and resistance to abrasion at high operating temperatures.
  • the grate bar according to the invention is characterised by consisting of a lower element with a load-bearing function, constructed of steel or cast iron without particular heat or abrasion resistance characteristics, and an upper element which is in direct contact with the combustible material and is formed of ceramic material or another equivalent material.
  • the reference numeral 1 indicates overall a grate comprising grate bars.
  • the grate 1 comprises conventionally a fixed frame 2a and mobile frame 2b driven with relative reciprocating motion in the direction of the arrows F and F′ and provided with parallel cross-­members 3 on which rows of grate bars constructed in accordance with the invention rest in cascade.
  • the feed direction of the fuel is indicated by the arrow G.
  • each grate bar 4 consists of a lower load-bearing element 5 of cast iron or steel without particular heat and/or abrasion resistance characteristics, and an upper element 6 constructed of ceramic material of high heat and wear resistance or of another equivalent material.
  • connection between said two elements must be made in a manner which is resistant to force and in particular so that the upper fragile element does not undergo damage.
  • the two halves 5′ and 5 ⁇ of the lower element are held together by two stay bolts 7 with elastic elements 8 such as spring washers therebetween, to compensate the difference in expansion between the upper (ceramic) element 6 and the lower (cast iron) element 5, without overstressing.

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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)
EP19900101756 1989-02-08 1990-01-30 Roststab mit Schutzteil aus keramischem Material oder aus gleichwertigem Material hoher Wärmebeständigkeit und Verschleissfestigkeit Withdrawn EP0382045A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8919346A IT1228302B (it) 1989-02-08 1989-02-08 Barrotto in ghisa con elemento di protezione in materiale ceramico od equivalente materiale di elevata resistenza al calore e all'usura.
IT1934689 1989-02-08

Publications (2)

Publication Number Publication Date
EP0382045A2 true EP0382045A2 (de) 1990-08-16
EP0382045A3 EP0382045A3 (de) 1991-05-15

Family

ID=11156931

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900101756 Withdrawn EP0382045A3 (de) 1989-02-08 1990-01-30 Roststab mit Schutzteil aus keramischem Material oder aus gleichwertigem Material hoher Wärmebeständigkeit und Verschleissfestigkeit

Country Status (2)

Country Link
EP (1) EP0382045A3 (de)
IT (1) IT1228302B (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0870988A2 (de) * 1997-04-09 1998-10-14 ECM Ingenieur-Unternehmen für Energie-und Umwelttechnik GmbH Feuerungsrost und Elemente zu seiner Herstellung
EP1008806A2 (de) 1998-12-12 2000-06-14 Asea Brown Boveri AG Hochtemperaturbeständiger Roststab
FR2894012A1 (fr) * 2005-11-28 2007-06-01 Cometal France Sarl Barreau pour grille de four d'incineration
US7624690B2 (en) * 2004-05-14 2009-12-01 Eco/Technologies, Llc Starved air inclined hearth combustor
WO2010115541A2 (de) 2009-04-08 2010-10-14 Baumgarte Boiler Systems Gmbh Roststab für einen verbrennungsofen und verfahren zur herstellung eines roststabes
KR101435884B1 (ko) * 2014-03-25 2014-09-02 에스엠메탈(주) 마모 방지 장치가 구비된 소각로용 화격자
CN110686262A (zh) * 2019-10-09 2020-01-14 科能亚太铸造（武汉）有限公司 一种垃圾焚烧用炉条及垃圾焚烧处理装置
CN110686263A (zh) * 2019-10-09 2020-01-14 科能亚太铸造（武汉）有限公司 一种焚烧装置用炉条

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE32368C (de) * J. H. FRANKEN in Köln Roststab
CH579748A5 (de) * 1973-01-29 1976-09-15 Hitachi Shipbuilding Eng Co
EP0170803A1 (de) * 1984-07-05 1986-02-12 Küpat AG Roststab für Verbrennungsöfen
WO1988006256A1 (en) * 1987-02-18 1988-08-25 Balduin Pauli Grille arrangement, particularly for stepped, pivoting grilles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE32368C (de) * J. H. FRANKEN in Köln Roststab
CH579748A5 (de) * 1973-01-29 1976-09-15 Hitachi Shipbuilding Eng Co
EP0170803A1 (de) * 1984-07-05 1986-02-12 Küpat AG Roststab für Verbrennungsöfen
WO1988006256A1 (en) * 1987-02-18 1988-08-25 Balduin Pauli Grille arrangement, particularly for stepped, pivoting grilles

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0870988A2 (de) * 1997-04-09 1998-10-14 ECM Ingenieur-Unternehmen für Energie-und Umwelttechnik GmbH Feuerungsrost und Elemente zu seiner Herstellung
EP0870988A3 (de) * 1997-04-09 1999-02-03 ECM Ingenieur-Unternehmen für Energie-und Umwelttechnik GmbH Feuerungsrost und Elemente zu seiner Herstellung
EP1008806A2 (de) 1998-12-12 2000-06-14 Asea Brown Boveri AG Hochtemperaturbeständiger Roststab
DE19857416A1 (de) * 1998-12-12 2000-06-15 Asea Brown Boveri Hochtemperaturbeständiger Roststab
EP1008806A3 (de) * 1998-12-12 2001-03-07 Asea Brown Boveri AG Hochtemperaturbeständiger Roststab
US7624690B2 (en) * 2004-05-14 2009-12-01 Eco/Technologies, Llc Starved air inclined hearth combustor
FR2894012A1 (fr) * 2005-11-28 2007-06-01 Cometal France Sarl Barreau pour grille de four d'incineration
DE102009016523A1 (de) 2009-04-08 2010-11-25 Baumgarte Boiler Systems Gmbh Roststab für einen Verbrennungsofen und Verfahren zur Herstellung eines Roststabes
WO2010115541A2 (de) 2009-04-08 2010-10-14 Baumgarte Boiler Systems Gmbh Roststab für einen verbrennungsofen und verfahren zur herstellung eines roststabes
WO2010115541A3 (de) * 2009-04-08 2011-11-10 Baumgarte Boiler Systems Gmbh Roststab für einen verbrennungsofen und verfahren zur herstellung eines roststabes
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
EA019607B1 (ru) * 2009-04-08 2014-04-30 Баумгарте Бойлер Зистемс Гмбх Колосник для пламенной печи и способ изготовления колосника
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
KR101435884B1 (ko) * 2014-03-25 2014-09-02 에스엠메탈(주) 마모 방지 장치가 구비된 소각로용 화격자
CN110686262A (zh) * 2019-10-09 2020-01-14 科能亚太铸造（武汉）有限公司 一种垃圾焚烧用炉条及垃圾焚烧处理装置
CN110686263A (zh) * 2019-10-09 2020-01-14 科能亚太铸造（武汉）有限公司 一种焚烧装置用炉条
CN110686263B (zh) * 2019-10-09 2023-12-22 科能亚太铸造（武汉）有限公司 一种焚烧装置用炉条
CN110686262B (zh) * 2019-10-09 2023-12-22 科能亚太铸造（武汉）有限公司 一种垃圾焚烧用炉条及垃圾焚烧处理装置

Also Published As

Publication number Publication date
IT8919346A0 (it) 1989-02-08
EP0382045A3 (de) 1991-05-15
IT1228302B (it) 1991-06-07

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