EP3926237A3 - Grate bar, grate bar assembly and method for operating a grate bar assembly - Google Patents

Grate bar, grate bar assembly and method for operating a grate bar assembly Download PDF

Info

Publication number
EP3926237A3
EP3926237A3 EP21000116.0A EP21000116A EP3926237A3 EP 3926237 A3 EP3926237 A3 EP 3926237A3 EP 21000116 A EP21000116 A EP 21000116A EP 3926237 A3 EP3926237 A3 EP 3926237A3
Authority
EP
European Patent Office
Prior art keywords
grate bar
sidewalls
bar assembly
side wall
running surface
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.)
Granted
Application number
EP21000116.0A
Other languages
German (de)
French (fr)
Other versions
EP3926237A2 (en
EP3926237C0 (en
EP3926237B1 (en
Inventor
Ulrich Martin
Helmut Pupp
Max Josef Schönsteiner
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.)
Martin GmbH fuer Umwelt und Energietechnik
Original Assignee
Martin GmbH fuer Umwelt und Energietechnik
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 Martin GmbH fuer Umwelt und Energietechnik filed Critical Martin GmbH fuer Umwelt und Energietechnik
Priority to EP22174061.6A priority Critical patent/EP4067744B1/en
Publication of EP3926237A2 publication Critical patent/EP3926237A2/en
Publication of EP3926237A3 publication Critical patent/EP3926237A3/en
Application granted granted Critical
Publication of EP3926237C0 publication Critical patent/EP3926237C0/en
Publication of EP3926237B1 publication Critical patent/EP3926237B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • F23H17/00—Details of grates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H17/00—Details of grates
    • F23H17/08—Bearers; Frames; Spacers; Supports
    • 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

Landscapes

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

Abstract

Ein Roststab weist einen Roststabkopf, zwei Seitenwände, eine Lauffläche hinter dem Roststabkopf zwischen den Seitenwänden und eine zwischen den Seitenwänden unter der Lauffläche liegende Unterseite auf. Eine Ausnehmung in einer Seitenwand zwischen Lauffläche und Unterseite bildet mindestens einen Luftschlitz der nur an einer Seitenwand und nicht in deren gegenüberliegender Seitenwand angeordnet ist.Bei einer Roststabanordnung mit mehreren Roststäben mit jeweils einer Lauffläche und einem Roststabkopf, bei der ein oberer Roststab mit seinem Roststabkopf relativ zu einem unteren Roststab derart beweglich angeordnet ist, dass der Roststabkopf über einen vorderen und einen hinteren Bereich der Lauffläche des Roststabes gleiten kann, weist die Lauffläche im vorderen und im hinteren Bereich Luftschlitze auf und der Roststabkopf ist relativ zu diesen Luftschlitzen derart verschiebbar, dass der Öffnungsquerschnitt aller Lüftungsschlitze konstant bleibt.A grate bar has a grate bar head, two sidewalls, a tread behind the grate bar head between the sidewalls, and a bottom underlying the tread between the sidewalls. A recess in a side wall between the running surface and the underside forms at least one air slot which is only arranged on one side wall and not in the opposite side wall is movably arranged in relation to a lower grate bar in such a way that the grate bar head can slide over a front and a rear area of the running surface of the grate bar, the running surface has air slots in the front and rear area and the grate bar head can be displaced relative to these air slots in such a way that the Opening cross-section of all ventilation slots remains constant.

EP21000116.0A 2020-05-25 2021-04-26 Grate bar, grate bar assembly and method for operating a grate bar assembly Active EP3926237B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22174061.6A EP4067744B1 (en) 2020-05-25 2021-04-26 Grate bar assembly and method for operating a grate bar assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020003114.5A DE102020003114A1 (en) 2020-05-25 2020-05-25 Grate bar, grate bar assembly and method of operating a grate bar assembly

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP22174061.6A Division EP4067744B1 (en) 2020-05-25 2021-04-26 Grate bar assembly and method for operating a grate bar assembly
EP22174061.6A Division-Into EP4067744B1 (en) 2020-05-25 2021-04-26 Grate bar assembly and method for operating a grate bar assembly

Publications (4)

Publication Number Publication Date
EP3926237A2 EP3926237A2 (en) 2021-12-22
EP3926237A3 true EP3926237A3 (en) 2022-02-23
EP3926237C0 EP3926237C0 (en) 2023-12-13
EP3926237B1 EP3926237B1 (en) 2023-12-13

Family

ID=75728540

Family Applications (2)

Application Number Title Priority Date Filing Date
EP21000116.0A Active EP3926237B1 (en) 2020-05-25 2021-04-26 Grate bar, grate bar assembly and method for operating a grate bar assembly
EP22174061.6A Active EP4067744B1 (en) 2020-05-25 2021-04-26 Grate bar assembly and method for operating a grate bar assembly

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP22174061.6A Active EP4067744B1 (en) 2020-05-25 2021-04-26 Grate bar assembly and method for operating a grate bar assembly

Country Status (6)

Country Link
US (2) US11906162B2 (en)
EP (2) EP3926237B1 (en)
JP (1) JP7235799B2 (en)
DE (1) DE102020003114A1 (en)
PL (1) PL4067744T3 (en)
SG (1) SG10202104656WA (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3982044B1 (en) * 2020-10-08 2024-04-24 Martin GmbH für Umwelt- und Energietechnik Method for holding together grate bars lying next to each other and a grate bar assembly

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1931003A (en) * 1932-12-19 1933-10-17 Nathan K Kramaroff Water heater
US2879727A (en) * 1953-06-29 1959-03-31 Arthur L Walters Furnace sawdust burners
JPS53130204U (en) * 1977-03-25 1978-10-16
EP0650017A1 (en) * 1993-10-21 1995-04-26 ABB Management AG Grate for a furnace
DE19851471A1 (en) * 1998-11-09 2000-05-11 Mitteldeutsche Feuerungs Und U Feed grate cover for combustion furnace has narrow S-shaped gaps to allow very little material to fall through and uses stair-step-type bars in close contact
DE19907944A1 (en) * 1999-02-25 2000-09-07 Saacke Gmbh & Co Kg Heating plate for tunnel furnace, especially for burning refuse, has air passages in its end wall and cooling ribs parallel to side walls on underside
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

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE416243C (en) 1923-02-11 1925-07-10 Evaporator Akt Ges Fa Deutsche Grate bar for underwind firing
DE2808057C2 (en) 1978-02-24 1980-02-14 Josef Martin Feuerungsbau Gmbh, 8000 Muenchen Grate covering for mechanically moved step-shaped furnace grates of large furnaces
FR2609530B1 (en) * 1987-01-09 1991-01-11 Traitement Indl Residus Urbain FIREPLACE GRID, WITH CROSS BARS IN ELEMENTS SOLIDARIZED BY THEIR FRONTAL FACES
CH684118A5 (en) * 1993-04-20 1994-07-15 Doikos Investments Ltd Burning sweepings on combustion grill - individually dosing prim. air through separate tubes extending whole length underneath grill
DE19528310A1 (en) * 1995-08-02 1997-02-06 Abb Management Ag Grate for a furnace
US5551356A (en) * 1995-10-11 1996-09-03 Powerhouse Technology, Inc. Two piece grate clip for use as a power generator maintenance part
DE19648128C2 (en) 1996-11-21 2002-11-07 Alstom Grate for a furnace
GB2483479A (en) 2010-09-09 2012-03-14 Tiska Gmbh Furnace grate bars
KR101346218B1 (en) * 2011-11-14 2014-01-02 일도바이오테크주식회사 Boiler equipped with grate having excellent thermal resistance and abrasion durability

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1931003A (en) * 1932-12-19 1933-10-17 Nathan K Kramaroff Water heater
US2879727A (en) * 1953-06-29 1959-03-31 Arthur L Walters Furnace sawdust burners
JPS53130204U (en) * 1977-03-25 1978-10-16
EP0650017A1 (en) * 1993-10-21 1995-04-26 ABB Management AG Grate for a furnace
DE19851471A1 (en) * 1998-11-09 2000-05-11 Mitteldeutsche Feuerungs Und U Feed grate cover for combustion furnace has narrow S-shaped gaps to allow very little material to fall through and uses stair-step-type bars in close contact
DE19907944A1 (en) * 1999-02-25 2000-09-07 Saacke Gmbh & Co Kg Heating plate for tunnel furnace, especially for burning refuse, has air passages in its end wall and cooling ribs parallel to side walls on underside
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

Also Published As

Publication number Publication date
JP2021188894A (en) 2021-12-13
EP4067744A1 (en) 2022-10-05
US20210364164A1 (en) 2021-11-25
US11906162B2 (en) 2024-02-20
SG10202104656WA (en) 2021-12-30
US20230392787A1 (en) 2023-12-07
EP3926237A2 (en) 2021-12-22
EP4067744B1 (en) 2023-10-25
JP7235799B2 (en) 2023-03-08
EP3926237C0 (en) 2023-12-13
EP3926237B1 (en) 2023-12-13
DE102020003114A1 (en) 2021-11-25
EP4067744C0 (en) 2023-10-25
PL4067744T3 (en) 2024-04-08

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