EP0811803B1 - Rostelement mit Flüssigkeitskühlung - Google Patents

Rostelement mit Flüssigkeitskühlung Download PDF

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Publication number
EP0811803B1
EP0811803B1 EP97108567A EP97108567A EP0811803B1 EP 0811803 B1 EP0811803 B1 EP 0811803B1 EP 97108567 A EP97108567 A EP 97108567A EP 97108567 A EP97108567 A EP 97108567A EP 0811803 B1 EP0811803 B1 EP 0811803B1
Authority
EP
European Patent Office
Prior art keywords
grate element
grate
element according
liquid
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.)
Expired - Lifetime
Application number
EP97108567A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0811803A3 (de
EP0811803A2 (de
Inventor
Johannes Josef Edmund Martin
Thomas Nikolaus
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.)
Seghers Keppel Technology Group
Martin GmbH fuer Umwelt und Energietechnik
Original Assignee
Techform Technology AG
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 Techform Technology AG, Martin GmbH fuer Umwelt und Energietechnik filed Critical Techform Technology AG
Priority to SI9730716T priority Critical patent/SI0811803T1/sl
Publication of EP0811803A2 publication Critical patent/EP0811803A2/de
Publication of EP0811803A3 publication Critical patent/EP0811803A3/de
Application granted granted Critical
Publication of EP0811803B1 publication Critical patent/EP0811803B1/de
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
    • 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
    • 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
    • F23H2900/00—Special features of combustion grates
    • F23H2900/03021—Liquid cooled grates

Definitions

  • the invention relates to a grate element with liquid cooling with channels intended to guide the liquid, with parallel ones Sections as well as with a fluid inlet and a Liquid drain, wherein the parallel sections of the channel transverse extend to the grate element longitudinal direction and rectilinear.
  • a plate-shaped grate element which is designed as a hollow sheet metal body and an inlet and a Run for cooling water has.
  • this known grate element can also baffles be provided in the hollow body, around a meandering passage of the cooling water through the To force grate element.
  • the inlet and the outlet is in the Area of the fastening or drive end of the grate element intended.
  • a structure of a grate element arise very large flow cross sections and associated dead spaces, Stalls and irregular distributions of the coolant.
  • grate elements are insufficiently ventilated, so that larger air accumulations can form, which in this area to a much worse cooling and thus lead to overheating of the grate element.
  • the grate elements arranged in a return rack are in which the grate element heads due to the inclined installation position at a higher point than the respective fixing or drive end of the grate element are located. At a such mounting position collects the existing air in the grate element then in the head area of the grate element, which is basically independent is exposed to a higher heat load from the rust type, so that in connection with the worse due to air bubbles Cooling effect of the wear of the grate element increases sharply.
  • each grate element has its own allocate controllable coolant circuit.
  • a liquid-cooled grate bar having at least one channel whose sections in Longitudinal direction of the grate bar parallel to each other and with a deflection in the head region of the grate bar in connection.
  • the inlet and outlet for this channel is also in this known grate bar in the rear, that is in the area the fastening or drive end, so that in principle here Similar disadvantages as in the first-mentioned plate-shaped Rust element occur.
  • the one in cross-section substantially rectangular channel and a Abknickenden course for deflection in the head area may have Stalls or swirls and accumulations of air are not included Safety can be avoided.
  • the inlet and the drain is provided in the rear area of the grate bar, is not only the Temperature detection, as already described, insufficient, but also the venting, that is the discharge possibly formed Bubbles from the head area is extremely difficult.
  • the object of the invention is a grate element with liquid cooling of the kind specified above in such a way that a targeted, the respective conditions adapted cooling of the grate element with low design and control engineering effort is possible.
  • This object is achieved on the basis of a grate element of the type described above according to the invention in that in each case two of a plurality of rectilinear channel sections are connected by a deflection within a grate element and that the channel has a narrow cross-section of 20 to 500mm 2 .
  • channel sections a circular cross section with a diameter of 5 to 25mm.
  • a preferred embodiment of the invention is that the Grate element made of a solid, pressure-resistant plate-shaped main part and on both sides attached narrow, solid, pressure-resistant side panels consists and that the main part of the rectilinear channel sections and the side parts have the deflections.
  • the main part of the grate element from a massive steel plate by introducing appropriate to produce through holes, with the attached Side parts have the deflections.
  • the side panels each cast in one piece or two parts made of rolled steel be made to the deflections, for example by milling what makes the production of particularly smooth interior walls of the Deflections allowed.
  • a temperature sensor to control the coolant temperature by changing the flow rate and / or the pressure of the coolant is provided, so may due to the fact that the spout in the head area, ie in the hottest area of the grate bar, a particularly sensitive control can be carried out as through this embodiment, the hottest temperature of the cooling medium and the grate bar can be detected, resulting in the arrangement of the spout at the rear end of the grate element not with this accuracy is possible.
  • Change of pressure of a cooling medium is in a self-contained system in the boiling temperature the coolant necessary to avoid this Upset steam bubbles.
  • the arrangement of a temperature sensor in the outlet has the advantage that, for example, the necessary supply line routed within the drain line of the cooling medium which makes this supply line particularly well protected is. Exposed supply lines to temperature sensors On grate bars are often at risk in this harsh operation of destruction.
  • a grate is made of several roof tiles constructed grating elements 1 and 2, of which the grate elements 1 in the direction of the double arrow 3 out and forth movable and the grate elements 2 arranged fixed are.
  • the grate elements 1 are assigned to a drive device 4, which generates the required hub.
  • Each grate element has one Mounting or drive end 5, which is suspended in a holder 6 is, with this holder 6 in the case of the driven Grate elements with the drive device 4 is firmly connected.
  • Each grate element has a head end 7 and a back 9 on.
  • each Grate element 1 and 2 constructed in three parts and consists of a Main part 10 and two side parts 11 and 12.
  • the main part 10 consists from a solid, pressure-resistant plate, which is transverse to the longitudinal direction, that is transverse to the conveying direction of the fuel from parallel to each other running rectilinear holes 13 is interspersed, the form the rectilinear channel sections for the cooling liquid.
  • deflections 14 are formed, wherein each associated with a deflection of two adjacent channel sections 13 is.
  • the first deflector located in the rear grate area is with an inlet 15 and the last located in the head area deflection is connected to a drain 16.
  • the cooling liquid occurs So at the inlet 15 and flows through the individual channel sections in turn from back to front, each parallel to the Surface of the grate element and transversely to the longitudinal direction of the grate element until it exits the head area through the outlet 16 again.
  • the sections between the individual rectilinear channel sections 13 chosen differently, with the channel sections in the head area much closer together than in the rear area of the grate element. This distribution is provided to the higher Heat load of the grate element in the head area account.
  • Reference numeral 17 denotes a temperature sensor for the Detection of the coolant temperature at the outlet 16.
  • the side parts 11 and 12 are explosively next to the main part 10 shown.
  • these side parts are firmly connected to the main part 10, which for example can be done by screws, not shown.
  • the side parts 11 and 12 can be executed split, so that the Deflections 14 e.g. can be produced by milling.

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)
  • Supporting Of Heads In Record-Carrier Devices (AREA)
  • Freezing, Cooling And Drying Of Foods (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Air Supply (AREA)
  • Baking, Grill, Roasting (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
EP97108567A 1996-06-04 1997-05-28 Rostelement mit Flüssigkeitskühlung Expired - Lifetime EP0811803B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9730716T SI0811803T1 (sl) 1996-06-04 1997-05-28 Element s tekocino hlajene resetke

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19622424 1996-06-04
DE19622424A DE19622424C2 (de) 1996-06-04 1996-06-04 Rostelement und Rost mit Flüssigkeitskühlung

Publications (3)

Publication Number Publication Date
EP0811803A2 EP0811803A2 (de) 1997-12-10
EP0811803A3 EP0811803A3 (de) 1999-03-31
EP0811803B1 true EP0811803B1 (de) 2005-07-20

Family

ID=7796127

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97108567A Expired - Lifetime EP0811803B1 (de) 1996-06-04 1997-05-28 Rostelement mit Flüssigkeitskühlung

Country Status (15)

Country Link
US (1) US5899150A (da)
EP (1) EP0811803B1 (da)
JP (1) JP3027727B2 (da)
AT (1) ATE300017T1 (da)
BR (1) BR9703442A (da)
CA (1) CA2206727C (da)
CZ (1) CZ290409B6 (da)
DE (2) DE19622424C2 (da)
DK (1) DK0811803T3 (da)
ES (1) ES2112229T3 (da)
NO (1) NO310485B1 (da)
PL (1) PL183140B1 (da)
RU (1) RU2119126C1 (da)
SI (1) SI0811803T1 (da)
TW (1) TW340171B (da)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3967927A1 (de) 2020-09-09 2022-03-16 Hitachi Zosen Inova AG Wassergekühlter rostblock für eine verbrennungsanlage

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19650742C1 (de) * 1996-12-06 1998-02-19 Metallgesellschaft Ag Mit Wasser gekühlter Verbrennungsrost
DE19753981C2 (de) * 1997-12-05 2000-04-06 Alstom Energy Syst Gmbh Flüssigkeitsgekühlte Rostplatte
EP0924464A1 (de) * 1997-12-19 1999-06-23 KOCH, Theodor Verfahren zur Kühlung des Rostes von Verbrennungsanlagen und Verbrennungsrost
EP0987494A1 (de) * 1998-09-15 2000-03-22 Asea Brown Boveri AG Verfahren zur Kühlung eines Rostes für einen Feuerungsraum sowie Rost für einen Feuerungsraum
DE19860553C2 (de) * 1998-12-22 2001-03-29 Mannesmann Ag Flüssigkeitsgekühlter Verbrennungsrost
DE19860552C2 (de) * 1998-12-22 2001-02-08 Mannesmann Ag Kühlbarer Verbrennungsrost
DE19910425C2 (de) 1999-03-10 2000-12-28 Teset Ag Weismes Waimes Rostsystem für einen Brennstoffkessel
DE19929614C2 (de) * 1999-06-28 2001-04-26 Martin Umwelt & Energietech Feuerungsanlage mit flüssigkeitsgekühlten Rostelementen
AU2000266797A1 (en) 2000-09-04 2002-03-22 Theodor Koch Grate bar with liquid cooling for incinerators
DE50100171D1 (de) * 2000-09-22 2003-05-22 Von Roll Umwelttechnik Ag Gekühlter Rostblock
DE10160135A1 (de) * 2001-12-07 2003-06-18 Km Europa Metal Ag Kokillenrohr zum Stranggießen von Metallen
EP1355112A1 (de) 2002-04-17 2003-10-22 Seghers Keppel Technology Group Verfahren zur Kühlung von Roststäben für Verbrennungsroste, Roststab und Verfahren zur Herstellung eines Roststabes
BR0312044A (pt) * 2002-06-24 2007-05-22 Basic J N Sen grelhas secadoras de incineradores com controle de temperatura
US20050183642A1 (en) * 2003-06-12 2005-08-25 Basic John N.Sr. Temperature-controlled incinerator dryer grates
US6964237B2 (en) * 2003-06-30 2005-11-15 Mark P. Hepp Grate block for a refuse incineration grate
DE102004034322B4 (de) * 2004-07-15 2006-09-28 Lurgi Lentjes Ag Rostplatte
CH697973B1 (de) * 2005-06-10 2009-04-15 Alstom Technology Ltd Rostwalze.
DK1801499T3 (da) * 2005-12-23 2009-08-24 W T E Waste To Energy S R L Forbrændingsrist til faste brændstoffer
JP2008215739A (ja) * 2007-03-06 2008-09-18 Schenkel Ernst 水冷式火格子要素
KR101307252B1 (ko) * 2013-04-09 2013-09-11 (주)태종 폐기물 소각장치의 화상면 구성방법
DE102014008858A1 (de) 2014-06-16 2015-12-17 Joachim Kümmel Verfahren zur Verbrennung von Abfall und Biomassen auf einem Flossenwand-Stufenrost sowie Vorrichtung zur Durchführung des Verfahrens
US10746401B2 (en) * 2016-07-07 2020-08-18 Babcock & Wilcox Vølund A/S Movable grate for a furnace
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
WO2018166587A1 (de) * 2017-03-15 2018-09-20 Seko-Patent Gmbh Roststab, rost und verbrennungsanlage
CN108443892A (zh) * 2018-03-09 2018-08-24 西格斯先进技术有限公司 一体式水冷炉排
FR3099949B1 (fr) * 2019-08-13 2021-11-19 Saretco Bloc de grille à gradins pour foyer de four d’incinérateur, et support correspondant
RU2737060C1 (ru) * 2020-03-27 2020-11-24 Алексей Валериевич Андреев Вилочная колосниковая решетка (варианты)

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US667607A (en) * 1900-09-26 1901-02-05 John Thurell Grate.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3967927A1 (de) 2020-09-09 2022-03-16 Hitachi Zosen Inova AG Wassergekühlter rostblock für eine verbrennungsanlage
WO2022053550A1 (de) 2020-09-09 2022-03-17 Hitachi Zosen Inova Ag Wassergekühlter rostblock für eine verbrennungsanlage

Also Published As

Publication number Publication date
JPH1082516A (ja) 1998-03-31
ES2112229T1 (es) 1998-04-01
EP0811803A3 (de) 1999-03-31
CZ290409B6 (cs) 2002-07-17
PL320322A1 (en) 1997-12-08
RU2119126C1 (ru) 1998-09-20
DK0811803T3 (da) 2005-11-07
PL183140B1 (pl) 2002-05-31
NO972545L (no) 1997-12-05
DE19622424A1 (de) 1997-12-11
DE59706724D1 (de) 2002-05-02
NO972545D0 (no) 1997-06-04
EP0811803A2 (de) 1997-12-10
DE19622424C2 (de) 1998-10-29
ES2112229T3 (es) 2006-02-01
CA2206727C (en) 2001-02-20
JP3027727B2 (ja) 2000-04-04
BR9703442A (pt) 1998-09-01
US5899150A (en) 1999-05-04
TW340171B (en) 1998-09-11
NO310485B1 (no) 2001-07-09
ATE300017T1 (de) 2005-08-15
CZ168697A3 (en) 1997-12-17
SI0811803T1 (sl) 2005-12-31
CA2206727A1 (en) 1997-12-04

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