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EP0924464A1 - Grille d'une installation de combustion et méthode pour son refroidissement - Google Patents

Grille d'une installation de combustion et méthode pour son refroidissement Download PDF

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Publication number
EP0924464A1
EP0924464A1 EP97122464A EP97122464A EP0924464A1 EP 0924464 A1 EP0924464 A1 EP 0924464A1 EP 97122464 A EP97122464 A EP 97122464A EP 97122464 A EP97122464 A EP 97122464A EP 0924464 A1 EP0924464 A1 EP 0924464A1
Authority
EP
European Patent Office
Prior art keywords
grate
air
incinerators
combustion
cooling
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Withdrawn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
EP97122464A
Other languages
German (de)
English (en)
Inventor
Theodor Koch
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP97122464A priority Critical patent/EP0924464A1/fr
Priority to AU87253/98A priority patent/AU8725398A/en
Priority to AU87252/98A priority patent/AU8725298A/en
Priority to PCT/CH1998/000365 priority patent/WO1999032831A1/fr
Priority to DE19881972T priority patent/DE19881972D2/de
Priority to PCT/CH1998/000364 priority patent/WO1999032830A1/fr
Priority to CH01186/00A priority patent/CH693802A5/de
Priority to DE19881971.4T priority patent/DE19881971B4/de
Publication of EP0924464A1 publication Critical patent/EP0924464A1/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Withdrawn legal-status Critical Current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
    • F23H3/00—Grates with hollow bars
    • F23H3/02—Grates with hollow bars internally cooled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H1/00—Grates with solid bars
    • F23H1/02—Grates with solid bars having provision for air supply or air preheating, e.g. air-supply or blast fittings which form a part of the grate structure or serve as supports
    • 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
    • F23H2900/00—Special features of combustion grates
    • F23H2900/03021—Liquid cooled grates

Definitions

  • the present invention relates to a method for Cooling of grates of incinerators after the The preamble of claim 1 and a grate therefor the preamble of claim 3.
  • Incinerators with fireboxes for use in which the fuel, for example, mechanically actuated rust is applied and burned thereon.
  • This type of cooling is also included suffers from the disadvantage that the amount of combustion air in primarily has a procedural function and does not have to perform a cooling function. A change in The amount of combustion air is dependent on the cooling effect usually not feasible. This is the required one The cooling effect of the grate covering is not guaranteed.
  • Water cooling of the rust coating is also known, such as described for example in WO 96/29544. Doing so a liquid cooling medium, such as water Channels passed through the grate. The cooling medium is then fed to a heat exchanger in which the Cooling medium can either be cooled or heated before it in a closed loop again rust is fed.
  • the disadvantage of such cooling is in having its own cooling circuit with its own Coolant must be provided, resulting in a additional effort compared to known, air-cooled grate leads.
  • the object of the present invention was now to a cooling process resp. a burn grate too find which optimal cooling or have tempering properties and on the other hand have a simple structure.
  • this object is achieved by the method solved according to claim 1. Preferably this will continue Proposed method according to claim 2.
  • the cooling of the grate proposed according to the invention using air in two stages leads to optimal cooling or Temperature control of the grate, while the cooling air can be used as additional combustion air.
  • the cooling air can be used as additional combustion air.
  • special coolant which is in its own closed cycle must be used.
  • Incinerators always supply additional air is intended for incineration necessary facilities such as air transport already available and can advantageously also for the Cooling can be used. So that a rust cooling with little additional effort for the furnace will be realized.
  • the grate according to the invention respectively.
  • the Grate bars designed such that the cooling air in one Forced guidance over the entire area of the grate bar flows through and thus also causes homogeneous cooling.
  • the preferred embodiment of the feed gap in the grate bar has the advantage that this is not due to slag or Combustion residues can clog and thus the supply the additional air can interrupt.
  • Figure 1 shows the top view of a grate bar 1, respectively. a Grate bar element. These elements can be side by side connected to practically any width, around the requirements of the dimensions of the combustion chamber to do justice to an incinerator.
  • the narrow head end 3 of the grate bar 1 has one corrugated resp. ribbed shape on, in continuation of the for example, also ribbed combustion surface 4 of the Grate bar 1.
  • Cooling channel 5 of the grate bar 1 the course of the Cooling channel 5 of the grate bar 1 shown.
  • the cooling air now enters the cooling channel 5 through the feed opening 6.
  • This is now in the form of a loop in the beginning trained to cover virtually the entire central area to include the combustion surface 4 of the grate bar 1 and is then still in straight channel areas the side edges 7, 8 of the grate bar 1 to Discharge opening 9 continued.
  • the cooling channel 5 has advantageously a constant, preferably circular flow cross-section.
  • FIG Figure 1 The side view of the grate bar 1 is shown in FIG Figure 1 shown. This is particularly good trough-shaped shape of the grate bar 1 can be seen, as well arranged in the side edges 7 circular Recesses, for example for the connection of the Grate bars 1 can be used side by side. Is too here the open socket 2 can be seen particularly well.
  • FIG 3 is a longitudinal section A-A through the grate bar 1, in which the cross sections of the cooling duct 5 are clearly visible.
  • the cooling channel 5 is here for example in the bottom of the combustion surface 4 formed semicircular ribs.
  • transverse cooling fins 10 are formed, advantageously in extension of the semicircular ribs of the Cooling channel 5. These fins serve the bottom of the Grate bar 1 brought up additional air as active surfaces.
  • the gap 11 is shown here, through which the additional air under the grate bar 1 through Combustion side, i.e. over the combustion surface 4 can be passed through.
  • Figure 4 is the cross section B-B through the Grate bar 1 shown, from which the course is dashed of the cooling channel 5 emerges. They are also further here at the bottom of the combustion surface 4 down protruding longitudinal ribs 13 shown, which on the one hand the rigidity and strength of the grate bar 1 improve and on the other hand also as cooling fins for the Serve additional air.
  • FIG 5 is the side view of several one after the other, overlapping each other Grate bars 1 with the supply lines 14 for the cooling air shown. Every second grate bar 1 is in not known way by one in this figure shown drive according to the orientation of the Combustion surfaces 4 moved back and forth to that on the grate bars 1 and whose combustion surfaces 4 lying Convey combustion material slowly from left to right.
  • FIG. 6 shows a larger section of the Incinerator in side view in the area of the the grate bars 1 formed grate shown, with a grate element 1 'the two end positions of the Shifting movement are shown in dashed lines.
  • the supply lines 14 of the immovable Grate bars 1 lead into a likewise rigid Header 15, which leads to the cooling air supply.
  • the Feed lines 14 of the movable grate bars 1 open into a common manifold 16, which in turn in a guide 17 is slidably disposed. This leadership 17 is parallel to the combustion surfaces 4 of the grate bars 1 aligned.
  • One end 16 'of the common Bus line 16 is via a single, flexible Connection line 18 with an immovable feed line 19 connected, which like the bus 15 to Cooling air supply leads.
  • the big advantage of this arrangement is that only one, flexible Line piece 18 for the supply of all grate bars 1 of the Incinerator is enough.
  • Cooling air can now either be by means of separate lines be dissipated, or advantageously directly in the Space below the respective neighboring grate bars 1 emanate. From here, this exhaust air gets below the Grate bars 1 along the cooling fins 10, 13 below additional cooling effect through the gap 11 in the Combustion chamber above the combustion surfaces 4 and serves as additional air to support the Combustion.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)
EP97122464A 1997-12-19 1997-12-19 Grille d'une installation de combustion et méthode pour son refroidissement Withdrawn EP0924464A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP97122464A EP0924464A1 (fr) 1997-12-19 1997-12-19 Grille d'une installation de combustion et méthode pour son refroidissement
AU87253/98A AU8725398A (en) 1997-12-19 1998-08-25 Grate bar for a combustion grate, and method for cooling the same
AU87252/98A AU8725298A (en) 1997-12-19 1998-08-25 Grate bar for a combustion grate, and method for cooling the same
PCT/CH1998/000365 WO1999032831A1 (fr) 1997-12-19 1998-08-25 Barreau de grille pour grille de combustion et procede pour son refroidissement
DE19881972T DE19881972D2 (de) 1997-12-19 1998-08-25 Roststab für Verbrennungsrost und Verfahren zu dessen Kühlung
PCT/CH1998/000364 WO1999032830A1 (fr) 1997-12-19 1998-08-25 Barreau de grille pour grille de combustion et procede pour son refroidissement
CH01186/00A CH693802A5 (de) 1997-12-19 1998-08-25 Verfahren zur Kuehlung von Roststaeben fuer Verbren nungsrost und Roststab respektive Rost hierfuer.
DE19881971.4T DE19881971B4 (de) 1997-12-19 1998-08-25 Roststab für Verbrennungsrost und Verfahren zu dessen Kühlung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97122464A EP0924464A1 (fr) 1997-12-19 1997-12-19 Grille d'une installation de combustion et méthode pour son refroidissement

Publications (1)

Publication Number Publication Date
EP0924464A1 true EP0924464A1 (fr) 1999-06-23

Family

ID=8227833

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97122464A Withdrawn EP0924464A1 (fr) 1997-12-19 1997-12-19 Grille d'une installation de combustion et méthode pour son refroidissement

Country Status (5)

Country Link
EP (1) EP0924464A1 (fr)
AU (2) AU8725298A (fr)
CH (1) CH693802A5 (fr)
DE (2) DE19881971B4 (fr)
WO (2) WO1999032830A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0989363B1 (fr) * 1998-09-24 2001-02-21 Von Roll Umwelttechnik AG Barreau de grille
EP1321711A1 (fr) 2001-12-21 2003-06-25 FISIA Babcock Environment GmbH Barreau refroidi à air pour grille à gradins
WO2006109199A1 (fr) 2005-04-13 2006-10-19 Babcock & Wilcox Vølund Aps Systeme de refroidissement pour grille de combustion dans une usine d’incineration
EP1983261A1 (fr) * 2007-04-20 2008-10-22 Ernst Schenkel Compensateur de mouvement
EP2778523A1 (fr) * 2013-03-14 2014-09-17 Hitachi Zosen Inova AG Dispositif de traitement d'impuretés
DE19881971B4 (de) * 1997-12-19 2014-10-09 MH Power Systems Europe Service GmbH Roststab für Verbrennungsrost und Verfahren zu dessen Kühlung
DE102014015916A1 (de) 2014-10-29 2016-05-04 Steinmüller Babcock Environment Gmbh Roststab und Rost für eine Schubrostfeuerung
DE102015101356A1 (de) * 2015-01-30 2016-08-04 Standardkessel Baumgarte Service GmbH Roststab mit Kühlmittel-Kanal
US10309648B2 (en) 2016-11-22 2019-06-04 General Electric Company System and method for active cooling of a grate bar for an incinerator of a waste-to-energy plant
CN112628759A (zh) * 2020-12-17 2021-04-09 东方电气集团东方锅炉股份有限公司 一种半水冷炉排结构及其焚烧炉

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3219985U (ja) * 2018-11-22 2019-01-31 三菱重工環境・化学エンジニアリング株式会社 火格子

Citations (8)

* 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
DE3343024A1 (de) * 1983-11-28 1985-06-05 Wärmetechnik Dr. Pauli GmbH, 8035 Gauting Luftgekuehlter beweglicher rost
EP0165432A1 (fr) * 1984-05-21 1985-12-27 KOCH, Theodor Four, notamment pour la combustion des ordures, du charbon, du bois et des déchets industriels
DE3434970A1 (de) * 1984-09-24 1986-10-16 Thermo-Anlagen-Technik Miehe GmbH, 3256 Coppenbrügge Einrichtung zur minderung der feststoffpartikel- und schadstoff-anteile im zwangsgefoerderten abgasstrom aus der verbrennung von kohlenstoffhaltigen feststoffen in einem reaktorbett
DE4205502C1 (en) * 1992-02-22 1993-02-18 Evt Energie- Und Verfahrenstechnik Gmbh, 7000 Stuttgart, De Moving grate on transverse girders, for rubbish incinerator - has grate rod rear protruding over vertical shank of angled grate bar foot, forming gap between shank and downwards flange
WO1995018333A1 (fr) * 1993-12-24 1995-07-06 Doikos Investments Limited Grille modulaire a coulisse pour l'incineration d'immondices dans des usines d'exploitation commerciale et procede d'exploitation
WO1996029544A1 (fr) 1995-03-23 1996-09-26 Theodor Koch Grille de combustion et procede d'optimisation du fonctionnement d'une grille de combustion
EP0811803A2 (fr) * 1996-06-04 1997-12-10 MARTIN GmbH für Umwelt- und Energietechnik Elément de grille et grille avec refroidissement à liquide

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3285874B2 (ja) * 1995-04-21 2002-05-27 ノエル−カーエルツェー エネルギー− ウント ウムヴェルトテヒニク ゲゼルシャフト ミット ベシュレンクテル ハフツング 冷却装置を備えた火格子及び冷却法
DE19528310A1 (de) * 1995-08-02 1997-02-06 Abb Management Ag Rost für eine Feuerungsanlage
DE19632316C1 (de) * 1996-08-10 1997-09-04 Evt Energie & Verfahrenstech Rostplatte
DE19648128C2 (de) * 1996-11-21 2002-11-07 Alstom Rost für eine Feuerungsanlage
EP0924464A1 (fr) * 1997-12-19 1999-06-23 KOCH, Theodor Grille d'une installation de combustion et méthode pour son refroidissement

Patent Citations (8)

* 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
DE3343024A1 (de) * 1983-11-28 1985-06-05 Wärmetechnik Dr. Pauli GmbH, 8035 Gauting Luftgekuehlter beweglicher rost
EP0165432A1 (fr) * 1984-05-21 1985-12-27 KOCH, Theodor Four, notamment pour la combustion des ordures, du charbon, du bois et des déchets industriels
DE3434970A1 (de) * 1984-09-24 1986-10-16 Thermo-Anlagen-Technik Miehe GmbH, 3256 Coppenbrügge Einrichtung zur minderung der feststoffpartikel- und schadstoff-anteile im zwangsgefoerderten abgasstrom aus der verbrennung von kohlenstoffhaltigen feststoffen in einem reaktorbett
DE4205502C1 (en) * 1992-02-22 1993-02-18 Evt Energie- Und Verfahrenstechnik Gmbh, 7000 Stuttgart, De Moving grate on transverse girders, for rubbish incinerator - has grate rod rear protruding over vertical shank of angled grate bar foot, forming gap between shank and downwards flange
WO1995018333A1 (fr) * 1993-12-24 1995-07-06 Doikos Investments Limited Grille modulaire a coulisse pour l'incineration d'immondices dans des usines d'exploitation commerciale et procede d'exploitation
WO1996029544A1 (fr) 1995-03-23 1996-09-26 Theodor Koch Grille de combustion et procede d'optimisation du fonctionnement d'une grille de combustion
EP0811803A2 (fr) * 1996-06-04 1997-12-10 MARTIN GmbH für Umwelt- und Energietechnik Elément de grille et grille avec refroidissement à liquide

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19881971B4 (de) * 1997-12-19 2014-10-09 MH Power Systems Europe Service GmbH Roststab für Verbrennungsrost und Verfahren zu dessen Kühlung
EP0989363B1 (fr) * 1998-09-24 2001-02-21 Von Roll Umwelttechnik AG Barreau de grille
EP1321711A1 (fr) 2001-12-21 2003-06-25 FISIA Babcock Environment GmbH Barreau refroidi à air pour grille à gradins
DE10163670A1 (de) * 2001-12-21 2003-07-03 Bbp Environment Gmbh Roststab für eine Schubrostfeuerung
WO2006109199A1 (fr) 2005-04-13 2006-10-19 Babcock & Wilcox Vølund Aps Systeme de refroidissement pour grille de combustion dans une usine d’incineration
KR101289560B1 (ko) * 2005-04-13 2013-07-24 밥콕 앤 윌콕스 뵐운트 아/에스 소각 플랜트에서의 연소 화격자를 위한 냉각 시스템
EP1983261A1 (fr) * 2007-04-20 2008-10-22 Ernst Schenkel Compensateur de mouvement
EP2778523A1 (fr) * 2013-03-14 2014-09-17 Hitachi Zosen Inova AG Dispositif de traitement d'impuretés
DE102014015916A1 (de) 2014-10-29 2016-05-04 Steinmüller Babcock Environment Gmbh Roststab und Rost für eine Schubrostfeuerung
EP3023694A1 (fr) 2014-10-29 2016-05-25 Steinmüller Babcock Environment GmbH Barreau de grille et grille pour un foyer a grille
DE102015101356A1 (de) * 2015-01-30 2016-08-04 Standardkessel Baumgarte Service GmbH Roststab mit Kühlmittel-Kanal
DE102015101356B4 (de) * 2015-01-30 2025-11-13 Standardkessel Baumgarte Service GmbH Roststab mit Kühlmittel-Kanal
US10309648B2 (en) 2016-11-22 2019-06-04 General Electric Company System and method for active cooling of a grate bar for an incinerator of a waste-to-energy plant
CN112628759A (zh) * 2020-12-17 2021-04-09 东方电气集团东方锅炉股份有限公司 一种半水冷炉排结构及其焚烧炉

Also Published As

Publication number Publication date
WO1999032830A1 (fr) 1999-07-01
AU8725298A (en) 1999-07-12
CH693802A5 (de) 2004-02-13
AU8725398A (en) 1999-07-12
WO1999032831A1 (fr) 1999-07-01
DE19881972D2 (de) 2000-11-16
DE19881971B4 (de) 2014-10-09
DE19881971D2 (de) 2000-11-16

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