EP0931981A2 - Dispositif et procédé pour la postcombustion de cendre lourde à forte teneur de matière imbrûlée - Google Patents

Dispositif et procédé pour la postcombustion de cendre lourde à forte teneur de matière imbrûlée Download PDF

Info

Publication number
EP0931981A2
EP0931981A2 EP99200062A EP99200062A EP0931981A2 EP 0931981 A2 EP0931981 A2 EP 0931981A2 EP 99200062 A EP99200062 A EP 99200062A EP 99200062 A EP99200062 A EP 99200062A EP 0931981 A2 EP0931981 A2 EP 0931981A2
Authority
EP
European Patent Office
Prior art keywords
ash
belt
air
postcombustion
zone
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
EP99200062A
Other languages
German (de)
English (en)
Other versions
EP0931981A3 (fr
EP0931981B1 (fr
Inventor
Mario Magaldi
Alberto Carrea
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.)
Magaldi Ricerche e Brevetti SRL
Original Assignee
Magaldi Ricerche e Brevetti SRL
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11378571&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0931981(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Magaldi Ricerche e Brevetti SRL filed Critical Magaldi Ricerche e Brevetti SRL
Publication of EP0931981A2 publication Critical patent/EP0931981A2/fr
Publication of EP0931981A3 publication Critical patent/EP0931981A3/fr
Application granted granted Critical
Publication of EP0931981B1 publication Critical patent/EP0931981B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J1/00—Removing ash, clinker, or slag from combustion chambers
    • F23J1/02—Apparatus for removing ash, clinker, or slag from ash-pits, e.g. by employing trucks or conveyors, by employing suction devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B5/00—Combustion apparatus with arrangements for burning uncombusted material from primary combustion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/30—Solid combustion residues, e.g. bottom or flyash

Definitions

  • the present invention relates to an apparatus and a method promoting the combustion completion or postcombustion of unburnt matter still contained in heavy ash arising from combustion of solid fuel of any kind in combustion chambers for powdered fuel, when said ash fall out from the combustion chamber.
  • This invention will produce the greater advantages the higher is the contents of unburnt matter in the ash.
  • the present invention can be considered a development of the invention disclosed in EP- 0 259 967 B1, applicable in those cases where the contents of unburnt matter is high and/or the postcombustion degree that can be attained with the apparatus disclosed in said prior document is not satisfactory.
  • the apparatus disclosed in said document claimed the increase of efficiency arising from the reduction of unburnt matter in heavy ash because of the introduction through suitable openings of air that travelled in countercurrent to the ash flow and promoted the combustion completion in view of the consequent oxidising ambient.
  • the main object of the present invention is to provide for an apparatus and a method solving these problems so as to allow
  • FIG. 1 of the drawings shows in a diagrammatic way one embodiment of the apparatus according to the present invention, comprising:
  • the postcombustion belt 18 is arranged directly below the combustion chamber 14 and receives ash 34 continuously falling from said combustion chamber.
  • the belt is moved to such a speed to obtain the optimal combination of thickness of the ash layer and ash residence time on the belt as a function of the amount of ash produced. Indeed if on the one hand an increase of the residence time promotes a postcombustion increase, on the other hand it causes an increase of the ash layer thickness on the belt that reduces diffusion of air necessary for the combustion inside the ash layer.
  • the regulation of the optimal combination may be effected only once, when the operative conditions are so stable to allow it, or more frequently in a continuous way by means of a continuous measurement of the actual thickness of ash 34 on the belt 18 for instance through a device 36 shown in Figure 2.
  • Said measuring device 36 comprises a blade 38 shaped so as not to hinder substantially the advancement of ash 34, said blade 38 being hinged to the top of the container 24. From the value of angle ⁇ formed by said blade lying on the ash bed, it is possible to know the thickness of said bed. Said blade 38 has also another function of great relevance in the method of the invention, that will be described hereinafter.
  • the belt postcombustion zone A is extended farther the belt stretch under the boiler, so as to give a suitable residence time also to ash deposited on the belt in proximity of the outlet.
  • the extension of the postcombustion zone outside the boiler will be determined for each single plant as a function of the general configuration of the boiler area and the desired postcombustion degree. As it was stated hereinbefore, it is fundamental to keep the temperature at high values, but harmonized with the necessity of safeguarding the mechanical characteristics of the components involved in the high temperature zone, namely the belt and the support rollers.
  • the lateral walls 40 of the postcombustion zone A, as well as the cover of said zone at the outlet of the postcombustion chamber are thermally insulated.
  • the air inlet ports 42 must be of limited size in the belt advancement direction so as to limit ash fall through said ports.
  • a positive pressure differential between the area below the belt and the area above the belt, air will be forced to pass through said inlet ports.
  • the combustion chambers normally operate under a light vacuum, it will be necessary to seal as far as possible the area above the belt. In this way the area above the belt will be at the said vacuum level of the combustion chamber, while the area under the belt will be at the pressure close to the atmospheric one. To this end, it will be the thickness of the ash 34 layer to limit the lateral penetrations through the area under the belt 18 and the area above the belt 18 for the whole length of said belt.
  • the postcombustion zone A may be divided, during belt advancement, as follows (see Figure 7):
  • ash is hit by cold air introduced into the apparatus through a suitable opening so as to start the cooling process.
  • Said cooling process is completed when discharging the material from the belt to the free atmosphere, at the area where it falls toward the primary crusher 30 as well as at the subsequent contact heat exchanger 32.
  • hot ash are cooled both by the direct contact with cold air and contact with metal plates 54 in turn hit by upwards ascendent cold air; these plates may be provided with lower fins (not shown) so as to increase the thermal exchange with the air and keep their temperature at minimal values.
  • Air ascending from the cooler to the postcombustor, forming totally or partially the combustion air, will be delivered to the zone where ash is discharged from the belt through a duct of suitable size in order to minimize loss of head. This feature is shown in Figure 8.
  • a cold air inlet 56 through the opening at the end of the postcombustion zone; an air inlet 58 from the final cooler 32; a drum 60 driving the belt; said belt 18; the ash layer 34 on the belt; the lateral channels or troughs 62 in which air is forced to move so as to enter again the combustion chamber, being attracted by the vacuum; and the lower trough 64 having the double function of deviating the possible fall of ash particles at the sides of the extractor container, so as to avoid said fall on the return stretch of the belt and the consequent erosion, and of forming together with the lateral channels a duct distributing hot air under the belt for the subsequent passage through the plate slots.
  • a variant of the illustrated situation may occur in case air passing through the ash layer is insufficient to obtain a good combustion.
  • one may use air under positive pressure coming from an air heater, namely at a temperature adequate for a good combustion. Said air will be conveyed under the belt, where it will be forced to pass through the ash layer in view of a confinement obtained through the belt, the lower trough (that must be arranged as close as possible to the container) and two vertical diaphragms between trough and belt, placed one at the beginning and the other at the end of the postcombustion zone, so as to limit air escape.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Gasification And Melting Of Waste (AREA)
  • Processing Of Solid Wastes (AREA)
  • Solid-Fuel Combustion (AREA)
EP99200062A 1998-01-15 1999-01-12 Dispositif et procédé pour la postcombustion de cendre lourde à forte teneur de matière imbrûlée Expired - Lifetime EP0931981B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI980051 1998-01-15
IT98MI000051A IT1298162B1 (it) 1998-01-15 1998-01-15 Apparecchiatura e metodo per la postcombustione di ceneri pesanti ad alto contenuto di incombusti

Publications (3)

Publication Number Publication Date
EP0931981A2 true EP0931981A2 (fr) 1999-07-28
EP0931981A3 EP0931981A3 (fr) 2000-01-19
EP0931981B1 EP0931981B1 (fr) 2003-12-10

Family

ID=11378571

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99200062A Expired - Lifetime EP0931981B1 (fr) 1998-01-15 1999-01-12 Dispositif et procédé pour la postcombustion de cendre lourde à forte teneur de matière imbrûlée

Country Status (6)

Country Link
EP (1) EP0931981B1 (fr)
AT (1) ATE256270T1 (fr)
DE (1) DE69913395T2 (fr)
DK (1) DK0931981T3 (fr)
ES (1) ES2213327T3 (fr)
IT (1) IT1298162B1 (fr)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001009549A1 (fr) * 1999-08-03 2001-02-08 Steag Encotec Gmbh Foyer comprenant un convoyeur d'evacuation vibrant et refroidi a l'air
WO2003071189A1 (fr) * 2002-02-21 2003-08-28 Magaldi Richerche E Brevetti S.R.L. Extracteur-refroidisseur de matieres en vrac par bande transporteuse a plaques perforees a ailettes
WO2003085323A1 (fr) * 2002-04-09 2003-10-16 Magaldi Ricerche E Brevetti S.R.L. Convoyeur/refroidisseur a air et eau pour des matieres en vrac chaudes
WO2005078346A1 (fr) * 2004-02-12 2005-08-25 Magaldi Ricerche E Brevetti S.R.L. Dispositif de concassage primaire pour transporteur/refroidisseur de matieres chaudes a l'etat libre
WO2007134874A1 (fr) * 2006-05-23 2007-11-29 Magaldi Power S.P.A. Systeme de refroidissement pour extraction a sec de machefer lourd pour fours lors de l'etape de stockage a la tremie
WO2008023394A1 (fr) * 2006-08-22 2008-02-28 Magaldi Power S.P.A. Système de refroidissement permettant l'extraction sèche des cendres lourdes de chaudières
WO2008142594A2 (fr) * 2007-05-21 2008-11-27 Magaldi Industrie S.R.L. Systeme d'extraction a sec/refroidissement de cendres de materiau heterogene, a regulation d'entree d'air dans la chambre de combustion
US7559725B2 (en) 2005-11-14 2009-07-14 General Kinematics Corporation Conveyor for and method of conveying heated material
EP2126469A1 (fr) * 2007-02-20 2009-12-02 Magaldi Ricerche E Brevetti S.R.L. Matériel et procédé d'extraction sèche/de refroidissement de cendres lourdes et de commande de la combustion de résidus à haute teneur non brûlée
WO2010043504A1 (fr) * 2008-10-17 2010-04-22 Clyde Bergemann Drycon Gmbh Dispositif de transport pour des chaudières de combustion
ITRM20090488A1 (it) * 2009-09-24 2011-03-25 Magaldi Ind Srl Sistema di estrazione e trasporto di ceneri leggere mediante trasportatore a nastro in acciaio.
US20110308435A1 (en) * 2010-06-16 2011-12-22 Clyde Bergemann Drycon Gmbh Conveying means and method for conveying hot material
US20120031312A1 (en) * 2010-08-04 2012-02-09 Clyde Bergemann Drycon Gmbh Apparatus and method for the post combustion of hot material on a conveyor
WO2012098504A2 (fr) 2011-01-21 2012-07-26 Magaldi Power S.P.A. Système et procédé pour refroidissement et extraction de cendres lourdes à augmentation d'un rendement total de chaudière
WO2014013472A2 (fr) 2012-07-20 2014-01-23 Magaldi Industrie S.R.L. Installation pour transport à sec de scories et/ou de matériaux hétérogènes
US8826835B1 (en) 2011-01-18 2014-09-09 General Kinematics Corporation Controlling carbon content in conveyed heated material
US10088233B2 (en) 2013-01-31 2018-10-02 General Kinematics Corporation Vibratory dryer with mixing apparatus
CN114704845A (zh) * 2022-03-25 2022-07-05 西安热工研究院有限公司 一种高效换热低漏风率的干排渣自动控制系统及方法
CN115452646A (zh) * 2022-08-24 2022-12-09 淮南矿业（集团）有限责任公司顾桥煤矿 一种煤炭灰分快速检测装置及方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010052404A1 (de) * 2010-11-24 2012-05-24 Clyde Bergemann Drycon Gmbh Verfahren und Vorrichtung zur Steuerung einer Verbrennung in einem Verbrennungskessel

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0259967A2 (fr) 1986-08-01 1988-03-16 Fujitsu Limited Mémoire répertoire

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1188247B (it) * 1986-01-10 1988-01-07 Magaldi Mario Procedimento ed apparecchiatura per l'estrazione continua a secco di ceneri pesanti
US4723494A (en) * 1987-01-12 1988-02-09 Anclif Equities Inc. Incinerator discharge systems
IT1241408B (it) * 1990-03-02 1994-01-14 Mario Magaldi Sistema di scarico delle ceneri pesanti da caldaie per la produzione di vapore
US5216967A (en) * 1992-03-16 1993-06-08 Sam Mormino Stand-alone, commercial refuse-burning apparatus
US5868084A (en) * 1995-03-20 1999-02-09 U.S. Scientific, L.L.C. Apparatus and process for carbon removal from fly ash
IT1276747B1 (it) * 1995-06-19 1997-11-03 Magaldi Ricerche & Brevetti Estrattore/raffreddatore di materiali sfusi

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0259967A2 (fr) 1986-08-01 1988-03-16 Fujitsu Limited Mémoire répertoire

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001009549A1 (fr) * 1999-08-03 2001-02-08 Steag Encotec Gmbh Foyer comprenant un convoyeur d'evacuation vibrant et refroidi a l'air
WO2003071189A1 (fr) * 2002-02-21 2003-08-28 Magaldi Richerche E Brevetti S.R.L. Extracteur-refroidisseur de matieres en vrac par bande transporteuse a plaques perforees a ailettes
CN1306213C (zh) * 2002-02-21 2007-03-21 马加莱狄研究与专利公司 采用配备有带孔的翼板的传动带的松散料的分离冷却器
JP2009109191A (ja) * 2002-04-09 2009-05-21 Magaldi Ricerche E Brevetti Srl 熱い脆性材料用の空気及び水搬送／冷却装置
WO2003085323A1 (fr) * 2002-04-09 2003-10-16 Magaldi Ricerche E Brevetti S.R.L. Convoyeur/refroidisseur a air et eau pour des matieres en vrac chaudes
US7311049B2 (en) * 2002-04-09 2007-12-25 Magaldi Ricerche E Brevetti S.R.L. Air and water conveyor/cooler for hot loose materials
KR100972420B1 (ko) * 2002-04-09 2010-07-26 마갈디 리체르케 에 브레베티 에스.알.엘 고온의 유리된 물질을 위한 공냉식 및 수냉식 운반 및 냉각 장치
CN1646860B (zh) * 2002-04-09 2010-05-05 马加莱狄研究与专利公司 用于高温松散材料的空气和水传送/冷却装置
WO2005078346A1 (fr) * 2004-02-12 2005-08-25 Magaldi Ricerche E Brevetti S.R.L. Dispositif de concassage primaire pour transporteur/refroidisseur de matieres chaudes a l'etat libre
US7849997B2 (en) 2005-11-14 2010-12-14 General Kinematics Corporation Conveyor for and method of conveying heated material
US7559725B2 (en) 2005-11-14 2009-07-14 General Kinematics Corporation Conveyor for and method of conveying heated material
WO2007134874A1 (fr) * 2006-05-23 2007-11-29 Magaldi Power S.P.A. Systeme de refroidissement pour extraction a sec de machefer lourd pour fours lors de l'etape de stockage a la tremie
AU2007253584B2 (en) * 2006-05-23 2012-01-12 Magaldi Power S.P.A. Cooling system for dry extraction of heavy bottom ash for furnaces during the storing step at the hopper
EA012796B1 (ru) * 2006-05-23 2009-12-30 Магальди Пауэр С. П. А. Система охлаждения для сухого извлечения тяжелого зольного остатка в течение этапа хранения в бункере
EA014862B1 (ru) * 2006-08-22 2011-02-28 Магальди Пауэр С.П.А. Система охлаждения для сухого удаления плотной золы из бойлеров
WO2008023394A1 (fr) * 2006-08-22 2008-02-28 Magaldi Power S.P.A. Système de refroidissement permettant l'extraction sèche des cendres lourdes de chaudières
JP2010501822A (ja) * 2006-08-22 2010-01-21 マガルディ パワー ソシエタ ペル アチオニ ボイラーから重灰を乾式抽出するための冷却システム
EP2126469A1 (fr) * 2007-02-20 2009-12-02 Magaldi Ricerche E Brevetti S.R.L. Matériel et procédé d'extraction sèche/de refroidissement de cendres lourdes et de commande de la combustion de résidus à haute teneur non brûlée
WO2008142594A2 (fr) * 2007-05-21 2008-11-27 Magaldi Industrie S.R.L. Systeme d'extraction a sec/refroidissement de cendres de materiau heterogene, a regulation d'entree d'air dans la chambre de combustion
WO2008142594A3 (fr) * 2007-05-21 2009-07-09 Magaldi Ind Srl Systeme d'extraction a sec/refroidissement de cendres de materiau heterogene, a regulation d'entree d'air dans la chambre de combustion
WO2010043504A1 (fr) * 2008-10-17 2010-04-22 Clyde Bergemann Drycon Gmbh Dispositif de transport pour des chaudières de combustion
CN102187156A (zh) * 2008-10-17 2011-09-14 克莱德贝尔格曼干控制有限公司 用于燃烧锅炉的传送装置
ITRM20090488A1 (it) * 2009-09-24 2011-03-25 Magaldi Ind Srl Sistema di estrazione e trasporto di ceneri leggere mediante trasportatore a nastro in acciaio.
WO2011036587A3 (fr) * 2009-09-24 2011-06-23 Magaldi Industrie S.R.L. Système d'extraction et de transport de cendres légères à l'aide d'un transporteur à courroie en acier
CN102297434A (zh) * 2010-06-16 2011-12-28 克莱德贝尔格曼干控制有限公司 用于输送热材料的输送装置及方法
EP2397758A3 (fr) * 2010-06-16 2014-12-24 Clyde Bergemann Drycon Gmbh Moyen de transport et procédé de transport de matériau chaud
CN102297434B (zh) * 2010-06-16 2016-02-24 克莱德贝尔格曼干控制有限公司 用于燃烧残余物的输送装置和方法及具有该装置的燃烧设备
US20110308435A1 (en) * 2010-06-16 2011-12-22 Clyde Bergemann Drycon Gmbh Conveying means and method for conveying hot material
US8733255B2 (en) * 2010-06-16 2014-05-27 Clyde Bergemann Drycon Gmbh Conveying means and method for conveying hot material
EP2416068A3 (fr) * 2010-08-04 2014-08-13 Clyde Bergemann Drycon Gmbh Dispositif et procédé de post-combustion de matériaux chauds sur une bande transporteuse
CN102374549A (zh) * 2010-08-04 2012-03-14 克莱德贝尔格曼干控制有限公司 用于热材料在输送机上二次燃烧的设备及方法
US20120031312A1 (en) * 2010-08-04 2012-02-09 Clyde Bergemann Drycon Gmbh Apparatus and method for the post combustion of hot material on a conveyor
US8826835B1 (en) 2011-01-18 2014-09-09 General Kinematics Corporation Controlling carbon content in conveyed heated material
CN103477152A (zh) * 2011-01-21 2013-12-25 马迦迪动力股份公司 用于以增加的总锅炉效率冷却与抽出重灰的系统与方法
WO2012098504A2 (fr) 2011-01-21 2012-07-26 Magaldi Power S.P.A. Système et procédé pour refroidissement et extraction de cendres lourdes à augmentation d'un rendement total de chaudière
WO2014013472A2 (fr) 2012-07-20 2014-01-23 Magaldi Industrie S.R.L. Installation pour transport à sec de scories et/ou de matériaux hétérogènes
US10088233B2 (en) 2013-01-31 2018-10-02 General Kinematics Corporation Vibratory dryer with mixing apparatus
CN114704845A (zh) * 2022-03-25 2022-07-05 西安热工研究院有限公司 一种高效换热低漏风率的干排渣自动控制系统及方法
CN115452646A (zh) * 2022-08-24 2022-12-09 淮南矿业（集团）有限责任公司顾桥煤矿 一种煤炭灰分快速检测装置及方法

Also Published As

Publication number Publication date
DK0931981T3 (da) 2004-04-05
ITMI980051A1 (it) 1999-07-15
ATE256270T1 (de) 2003-12-15
DE69913395D1 (de) 2004-01-22
DE69913395T2 (de) 2004-10-07
EP0931981A3 (fr) 2000-01-19
IT1298162B1 (it) 1999-12-20
EP0931981B1 (fr) 2003-12-10
ES2213327T3 (es) 2004-08-16

Similar Documents

Publication Publication Date Title
EP0931981B1 (fr) Dispositif et procédé pour la postcombustion de cendre lourde à forte teneur de matière imbrûlée
US3133804A (en) Apparatus for treating molten ash or slag
US4321877A (en) Gasification furnace
US3302936A (en) Circular traveling grate machine
US4389242A (en) Interior arrangement for direct reduction rotary kilns and method
ES2694387T3 (es) Planta de extracción de caudal regular
EP0257858B1 (fr) Four
US5425331A (en) Circulating fluidized bed reactor for low grade fuels
US20110297060A1 (en) Conveyor device for combustion boilers
US3970011A (en) Combustion with fluidizable bed
US3808989A (en) Method and arrangement for jointly combusting household refuse and sewage sludge
US2996292A (en) Gravity-fed combustion equipment applying crossfeed ignition principle
US4336131A (en) Gasification furnace with discharge hopper
EP0437407B1 (fr) Méthode de frittage de minerais de fer fin, utilisant deux systèmes d'allumage
US2389077A (en) Sewage sludge, screenings, and garbage combustion apparatus
US4392823A (en) Method and apparatus for indirectly drying and preheating fine material
US3664278A (en) Method and apparatus for incinerating solid materials
US2033685A (en) Boiler furnace
US5568734A (en) Double layer cooler
US5899149A (en) Incineration grate with ducts for conveying a heat transmission medium
US4089697A (en) Manufacture of Portland cement
US4466827A (en) Method for melting metals
US4422846A (en) Method and apparatus for indirectly drying and preheating fine material
US3612497A (en) Center feed rotary hearth calciner
US4726765A (en) Combustor drum hole shields

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20000713

AKX Designation fees paid

Free format text: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AXX Extension fees paid

Free format text: AL;LT;LV;MK;RO;SI

17Q First examination report despatched

Effective date: 20021021

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE DE DK ES FI FR GB GR IE IT NL SE

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 69913395

Country of ref document: DE

Date of ref document: 20040122

Kind code of ref document: P

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

REG Reference to a national code

Ref country code: GR

Ref legal event code: EP

Ref document number: 20040400875

Country of ref document: GR

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2213327

Country of ref document: ES

Kind code of ref document: T3

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

ET Fr: translation filed
PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

26 Opposition filed

Opponent name: CLYDE BERGEMANN GMBH

Effective date: 20040910

NLR1 Nl: opposition has been filed with the epo

Opponent name: CLYDE BERGEMANN GMBH

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

PLAY Examination report in opposition despatched + time limit

Free format text: ORIGINAL CODE: EPIDOSNORE2

PLAH Information related to despatch of examination report in opposition + time limit modified

Free format text: ORIGINAL CODE: EPIDOSCORE2

PLBC Reply to examination report in opposition received

Free format text: ORIGINAL CODE: EPIDOSNORE3

PLCK Communication despatched that opposition was rejected

Free format text: ORIGINAL CODE: EPIDOSNREJ1

APBP Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2O

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

APBQ Date of receipt of statement of grounds of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA3O

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IE

Payment date: 20100121

Year of fee payment: 12

APBU Appeal procedure closed

Free format text: ORIGINAL CODE: EPIDOSNNOA9O

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 20100617

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110112

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20130213

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20130122

Year of fee payment: 15

Ref country code: BE

Payment date: 20130128

Year of fee payment: 15

Ref country code: GR

Payment date: 20130117

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20130111

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FI

Payment date: 20140122

Year of fee payment: 16

Ref country code: DK

Payment date: 20140121

Year of fee payment: 16

Ref country code: SE

Payment date: 20140121

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20140124

Year of fee payment: 16

BERE Be: lapsed

Owner name: *MAGALDI RICERCHE E BREVETTI S.R.L.

Effective date: 20140131

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20140801

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 256270

Country of ref document: AT

Kind code of ref document: T

Effective date: 20140112

REG Reference to a national code

Ref country code: GR

Ref legal event code: ML

Ref document number: 20040400875

Country of ref document: GR

Effective date: 20140801

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140801

Ref country code: GR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140801

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20140930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140131

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140112

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140131

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

Effective date: 20150131

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150112

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150113

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150131

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20160226

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150113

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20160113

Year of fee payment: 18

Ref country code: DE

Payment date: 20160120

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20160120

Year of fee payment: 18

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 69913395

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20170112

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170801

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170112

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170112