EP1321711A1 - Barreau refroidi à air pour grille à gradins - Google Patents

Barreau refroidi à air pour grille à gradins Download PDF

Info

Publication number
EP1321711A1
EP1321711A1 EP02028385A EP02028385A EP1321711A1 EP 1321711 A1 EP1321711 A1 EP 1321711A1 EP 02028385 A EP02028385 A EP 02028385A EP 02028385 A EP02028385 A EP 02028385A EP 1321711 A1 EP1321711 A1 EP 1321711A1
Authority
EP
European Patent Office
Prior art keywords
grate bar
grate
gap
cooling
air
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
EP02028385A
Other languages
German (de)
English (en)
Other versions
EP1321711B1 (fr
Inventor
Bernhard Dr. Zimmermann
Christian Mantsch
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
Fisia 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 Fisia Babcock Environment GmbH filed Critical Fisia Babcock Environment GmbH
Publication of EP1321711A1 publication Critical patent/EP1321711A1/fr
Application granted granted Critical
Publication of EP1321711B1 publication Critical patent/EP1321711B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F23H3/00—Grates with hollow bars
    • F23H3/02—Grates with hollow bars internally cooled

Definitions

  • the invention relates to a cooled grate bar for a Moving grate firing with the characteristics of the generic term of Claim 1.
  • The is used to cool the grate bars of combustion grates Combustion air, the so-called primary air through the Blown combustion grate into the fuel bed resting on it becomes.
  • the cooling effect through the primary air flow is determined by the gap size between the grate bars or by defined outlet openings and the flow resistance of the Primary air through the fuel bed at this point. Will the Primary airflow z. B. laid by liquid slags, the Block the gap or clog the outlet openings, so the affected grate bar is practically not cooled.
  • the grate bar on the bottom with cooling fins be provided, which are blown by the primary air.
  • Out DE 41 05 330 C1 is a grate bar with a hollow box-like Cross section known. Between the top and bottom of this grate bar are two chambers by a central rib formed, which is charged with air from the rear are. The air passes through the chambers a slot nozzle on the front of the grate bar in the Combustion chamber. This type of cooling also exists the risk of clogging the slot nozzle so that the air do not come out of the grate bar and therefore do not cool it can.
  • EP 0 924 464 A1 describes a cooled grate bar known, on the underside of an unspecified Wise a meandering, air flow Pipe coil is attached. After flowing through the Pipe coil the air comes out of the grate bar Underside through laterally arranged outlet openings. If the pipe coil is insufficiently secured, the Heat transfer from the grate bar into the cooling air through the Pipe coil significantly affected.
  • the meandering Laying the pipe coil basically leads to an asymmetrical one Temperature distribution in the grate bar. The result is warping the grate bar with an undesirable gap formation between side by side grate bars.
  • the invention has for its object the generic To design the grate bar so that it is safe and even with Air is cooled.
  • the symmetrical with respect to the longitudinal axis of the grate bar running cooling gap and that over the entire Grid bar width extending exit gap ensure a uniform cooling of the grate bar.
  • the one on the bottom of the Grid rod laid outlet gap can not be through the on the Burning rust dormant fuel bed can be clogged, so that the grate bar is always flowed through by cooling air.
  • sloping downwards directed combustion grate of a moving grate combustion consists of several rows of grids arranged side by side 1.
  • the moving grate firing is used to burn fuel or preferably garbage, which as a fuel layer on the Burn grate is applied.
  • the grate bars 1 one Row of bars are mounted on a grate bar support 2.
  • the Grate bars 1 of the individual rows of bars are roof tiles one above the other.
  • a funnel 3 is located below the combustion grate, through which the grate diarrhea is removed.
  • Into the funnel 3 opens a main air line 4 through which the Primary air share in the combustion air for burning the Fuel is supplied.
  • the primary air passes through the Gaps between the individual grate bars 1 in the on the Burning rust resting fuel layer. Give the arrows the direction of flow of the primary air.
  • the grate bar 1 which preferably consists of a cast part, has a U-shaped profile with a back 5 and two Side flanks 6 on.
  • the grate bar 1 is closed with a Head piece 7 and provided with an end piece 8.
  • the head 7 the grate bars 1 of a row of bars slide on the back 5 the grate bars 1 of the subsequent row of bars.
  • the End piece 8 is mounted on the grate bar support 2.
  • the grate bar 1 is on its underside, that is on the Fuel layer facing away and the funnel 3 facing Provide side with a cooling gap 9.
  • the cooling gap 9 extends between the side flanks 6 over the entire width of the Grate bar 1 and ends in an exit gap 10, the Width of the cooling gap 9 corresponds.
  • the height of the cooling gap 9 is several times less than the height of the grate bar 1.
  • the cooling gap 9 is through the side flanks 6 and Cover plate 11 limited in one of the height of the cooling gap 9 corresponding distance from the back 5 on the grate bar 1 is attached.
  • the underside of the back 5 of the Grate bar 1 provided with a surface structure that the Has the shape of grooves 12.
  • the grooves 12 run in Longitudinal direction of the grate bar 1 from the end piece 8 to the Headpiece 7.
  • the exact course of the grooves 12 can be varied and is thermally optimized.
  • the cover plate 11 rests on the ridges of the grooves 12.
  • the cooling gap 9 is flowed through by cooling air, which is a partial flow branched off from the primary air supplied to the combustion grate is.
  • one of the main air line 4 Air line 13 branches.
  • the air line 13 is one Throttle valve 14 arranged.
  • the air line 13 is one Distribution line 15 out.
  • Via flexible branch lines 16 the distributor line 15 is connected to the grate bar supports 2, which are hollow for guiding the cooling air and at the ends are closed.
  • the grate bar supports 2 are flexible Pipe sections 17 led to the individual grate bars 1.
  • the Cover plate 11 is provided with a feed opening 18 into which each one of the pipe sections 17 opens.
  • Die Cover plate 11 follows the continuation of the cooling gap 9 Shape of the head piece 7, being between the lower edge of the Cover plate 11 and a shoulder of the head piece 7 a horizontal section is formed, the outlet gap 10th forms.
  • the cooling air supplied to the grate bar 1 flows through the Cooling gap 9 in the longitudinal direction of the grate bar 1 over the entire Grate bar width up to the head piece 7 and occurs horizontally and symmetrically from the exit gap 10.
  • the heated one Cooling air mixes with the primary air from the funnel 3, the back 5 of the underlying grate bar 1 is cooled becomes.
  • the mixed with the cooling air flows Primary air through the gaps between the grate bars 1 in the Combustion chamber located above the combustion grate, whereby the side flanks 6 of the grate bars 1 are cooled.
  • the cover plate 11 ends at a distance from the end piece 8 and thus forms the Exit gap 10, which in this case is vertically downward is directed.
  • the cooling air supplied to the grate bar 1 flows through the cooling gap 9 in the longitudinal direction of the grate bar 1 over the entire grate bar width starting from the head piece 7 than the hottest section of the grate bar 1 and occurs in the Near the end piece 8 symmetrically and vertically downwards the exit gap 10 from.
  • This variant is thermal cheaper than the variant shown in Fig.
  • the heated cooling air mixes with the primary air from the Funnel 3 to a uniform mixing temperature. Subsequently the air mixture flows from heated cooling air and primary air through the gaps between the grate bars 1 in the above the Combustion grate lying combustion chamber, the Side flanks 6 of the grate bars 1 are cooled.
  • the amount of cooling air supplied to the grate bars 1 as one Partial flow of the entire primary air is via the throttle valve 14 set in the air line 13. So it's in easier Way possible, the grate bar cooling a changed calorific value of the waste to be incinerated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)
  • Furnace Details (AREA)
  • Compositions Of Oxide Ceramics (AREA)
EP02028385A 2001-12-21 2002-12-18 Barreau refroidi à air pour grille à gradins Expired - Lifetime EP1321711B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10163670 2001-12-21
DE10163670A DE10163670A1 (de) 2001-12-21 2001-12-21 Roststab für eine Schubrostfeuerung

Publications (2)

Publication Number Publication Date
EP1321711A1 true EP1321711A1 (fr) 2003-06-25
EP1321711B1 EP1321711B1 (fr) 2008-07-30

Family

ID=7710662

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02028385A Expired - Lifetime EP1321711B1 (fr) 2001-12-21 2002-12-18 Barreau refroidi à air pour grille à gradins

Country Status (5)

Country Link
EP (1) EP1321711B1 (fr)
JP (1) JP4135898B2 (fr)
KR (1) KR100659136B1 (fr)
AT (1) ATE403111T1 (fr)
DE (2) DE10163670A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1612483A2 (fr) * 2004-07-03 2006-01-04 Lurgi Lentjes AG Elément de grille, grille de combustion associée et installation d'incinération de matière résiduelle
EP1801499A1 (fr) * 2005-12-23 2007-06-27 W.T.E. Waste to Energy S.R.L. Grille de combustion pour combustibles solides
EP2184540A1 (fr) * 2008-11-05 2010-05-12 Von Roll Umwelttechnik AG Bloc de grille à refroidissement par air
EP2381174A1 (fr) 2010-04-21 2011-10-26 Marco Bachmann Elément de revêtement pour des pièces constitutives d'incinérateurs
EP2949995A3 (fr) * 2014-05-05 2016-03-02 Tiska GmbH Barreau refroidi pour une grille mobile d'un four à combustion
EP3967926A1 (fr) * 2020-09-09 2022-03-16 Hitachi Zosen Inova AG Bloc de grillage pourvu de nez montant

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101143978B1 (ko) 2010-01-13 2012-05-09 진영신 소각로용 화격자
KR101330450B1 (ko) * 2012-12-21 2013-11-15 조경열 소각로용 화격자 구조
DE102014015916A1 (de) 2014-10-29 2016-05-04 Steinmüller Babcock Environment Gmbh Roststab und Rost für eine Schubrostfeuerung

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE959212C (de) * 1948-10-02 1957-02-28 Martin Joh Jos Dr Ing Aus luftgekuehlten Hohlroststaeben bestehender Rost
DE1301421B (de) * 1967-06-02 1969-08-21 Johannes Josef Dr Ing Rost fuer Grossfeuerungen mit luftgekuehlten Roststaeben
DE3343024A1 (de) * 1983-11-28 1985-06-05 Wärmetechnik Dr. Pauli GmbH, 8035 Gauting Luftgekuehlter beweglicher rost
EP0458108A2 (fr) * 1990-05-21 1991-11-27 Nkk Corporation Structure de grille pour un incinérateur du type horizontal
DE4105330C1 (fr) 1991-02-18 1992-08-06 Noell - K + K Abfalltechnik Gmbh, 4040 Neuss, De
EP0924464A1 (fr) 1997-12-19 1999-06-23 KOCH, Theodor Grille d'une installation de combustion et méthode pour son refroidissement

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3230597C1 (de) * 1982-08-17 1983-12-22 Johannes Josef Edmund 1000 Berlin Martin Roststab fuer Rostbelaege,insbesondere von Feuerungen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE959212C (de) * 1948-10-02 1957-02-28 Martin Joh Jos Dr Ing Aus luftgekuehlten Hohlroststaeben bestehender Rost
DE1301421B (de) * 1967-06-02 1969-08-21 Johannes Josef Dr Ing Rost fuer Grossfeuerungen mit luftgekuehlten Roststaeben
DE3343024A1 (de) * 1983-11-28 1985-06-05 Wärmetechnik Dr. Pauli GmbH, 8035 Gauting Luftgekuehlter beweglicher rost
EP0458108A2 (fr) * 1990-05-21 1991-11-27 Nkk Corporation Structure de grille pour un incinérateur du type horizontal
DE4105330C1 (fr) 1991-02-18 1992-08-06 Noell - K + K Abfalltechnik Gmbh, 4040 Neuss, De
EP0924464A1 (fr) 1997-12-19 1999-06-23 KOCH, Theodor Grille d'une installation de combustion et méthode pour son refroidissement

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1612483A2 (fr) * 2004-07-03 2006-01-04 Lurgi Lentjes AG Elément de grille, grille de combustion associée et installation d'incinération de matière résiduelle
EP1612483A3 (fr) * 2004-07-03 2006-02-08 Lurgi Lentjes AG Elément de grille, grille de combustion associée et installation d'incinération de matière résiduelle
EP1801499A1 (fr) * 2005-12-23 2007-06-27 W.T.E. Waste to Energy S.R.L. Grille de combustion pour combustibles solides
EP2184540A1 (fr) * 2008-11-05 2010-05-12 Von Roll Umwelttechnik AG Bloc de grille à refroidissement par air
WO2010051953A1 (fr) * 2008-11-05 2010-05-14 Von Roll Umwelttechnik Ag Bloc grille à refroidissement par air
EP2381174A1 (fr) 2010-04-21 2011-10-26 Marco Bachmann Elément de revêtement pour des pièces constitutives d'incinérateurs
CH703063A1 (de) * 2010-04-21 2011-10-31 Marco Bachmann Verkleidungselement für Vorrichtungsteile von Verbrennungsöfen.
US8661994B2 (en) 2010-04-21 2014-03-04 Mb Wasserstrahlschneidetechnik Ag Cladding element for device sections of incinerators
EP2949995A3 (fr) * 2014-05-05 2016-03-02 Tiska GmbH Barreau refroidi pour une grille mobile d'un four à combustion
EP3967926A1 (fr) * 2020-09-09 2022-03-16 Hitachi Zosen Inova AG Bloc de grillage pourvu de nez montant
WO2022053551A1 (fr) * 2020-09-09 2022-03-17 Hitachi Zosen Inova Ag Bloc de grille à nez montant
US11808450B2 (en) 2020-09-09 2023-11-07 Hitachi Zosen Inova Ag Grate block with rising nose

Also Published As

Publication number Publication date
DE50212566D1 (de) 2008-09-11
EP1321711B1 (fr) 2008-07-30
KR20030052987A (ko) 2003-06-27
JP4135898B2 (ja) 2008-08-20
ATE403111T1 (de) 2008-08-15
DE10163670A1 (de) 2003-07-03
JP2003232513A (ja) 2003-08-22
KR100659136B1 (ko) 2006-12-18

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