EP0427828B1 - Chambre de chauffage dans des fours a coke et procede de chauffage - Google Patents

Chambre de chauffage dans des fours a coke et procede de chauffage Download PDF

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Publication number
EP0427828B1
EP0427828B1 EP90906914A EP90906914A EP0427828B1 EP 0427828 B1 EP0427828 B1 EP 0427828B1 EP 90906914 A EP90906914 A EP 90906914A EP 90906914 A EP90906914 A EP 90906914A EP 0427828 B1 EP0427828 B1 EP 0427828B1
Authority
EP
European Patent Office
Prior art keywords
heating
combustion
components
air
gas
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
EP90906914A
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German (de)
English (en)
Other versions
EP0427828A1 (fr
Inventor
Wilhelm Stewen
Klaus Wessiepe
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.)
Feuerfest Dr C Otto GmbH
Original Assignee
Feuerfest Dr C Otto 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 Feuerfest Dr C Otto GmbH filed Critical Feuerfest Dr C Otto GmbH
Priority to AT90906914T priority Critical patent/ATE86648T1/de
Publication of EP0427828A1 publication Critical patent/EP0427828A1/fr
Application granted granted Critical
Publication of EP0427828B1 publication Critical patent/EP0427828B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B21/00—Heating of coke ovens with combustible gases
    • C10B21/10—Regulating and controlling the combustion
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B21/00—Heating of coke ovens with combustible gases
    • C10B21/20—Methods of heating ovens of the chamber oven type
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B5/00—Coke ovens with horizontal chambers
    • C10B5/02—Coke ovens with horizontal chambers with vertical heating flues

Definitions

  • coke ovens In coke ovens, coking of coal takes place with the exclusion of air through indirect heating.
  • heating rooms and heating trains are provided in the coke oven walls.
  • the combustion media are supplied with gas and air, where they are mixed and burned.
  • the supply is preferably arranged to reduce the pollutants NO x contained in the resulting flue gases so that the combustion air is introduced at different heights into the combustion chamber in order to achieve an initially substoichiometric combustion with the lowest possible temperatures at the tip of the flame.
  • Substances such as NO / NO2 accelerate the flame reaction.
  • flue gas can be added.
  • the flue gas can be added to the combustion air.
  • GB-A-2095380 discloses a gas supply for heating rooms in coke ovens, in which the combustion gases are fed into the combustion chamber through shafts with air outlet openings at different heights and then brought to the combustion.
  • the invention has for its object to improve the heating and flow conditions in the heating rooms of coke ovens. According to the invention this is achieved by internals.
  • the internals are made of fireproof building materials, which in the Atmosphere of the boiler room are stable and can withstand temperatures up to 1800 ° C.
  • the internals are formed by honeycomb grids and / or ball beds.
  • honeycomb grids make the flow more even and may even cause gas and air to be routed separately over a distance to be determined, which depends in particular on the furnace height and the geometric dimensions of the heating space.
  • the heating space or the heating device is preferably divided into different zones, into which gas and combustion air are separated, and also introduced at different heights.
  • the gas is supplied with the amount of air required for significant sub-stoichiometric combustion, and in a further stage the gas-smoke mixture that has not yet been burned is burned with air supplied from outside again. In this way, individual combustion reactions occur, which are acted upon separately by air. As a result, an almost uniform combustion with a low flame tip temperature can also be carried out over great heights.
  • the type of combustion can be set selectively depending on the heat required at the respective height. So that one or Double-sided, pyramid-shaped flame progress possible over the height. With such a graded flame advance, it is no longer necessary to supply the combustion air at different heights.
  • the surfaces of the honeycombs can also be charged with catalyst material that the pollutants that arise, z. B. NO x , implemented at the place of origin.
  • the web thickness can have an additional influence on the heat storage capacity, which can compensate for the drop in temperature with currently increased heat dissipation.
  • combustion can be influenced by changing the cross-section.
  • FIG. 1 shows a single view of a heating train of a coke oven.
  • the coke oven also has a large number of further heating trains which are of the same design.
  • the heating cable 1 has a length of 7650 mm in the exemplary embodiment.
  • the heating train 1 has a gas and air supply in a combustion chamber 7.
  • two honeycomb-shaped internals 2 and 3 are arranged one above the other. Both have a length of 2000 mm.
  • Installation 2 is located approx. 1165 mm above the gas and air supply.
  • the distance between the two internals 2 and 3 is equal to the distance of the honeycomb-shaped installation 2 from the gas and air supply.
  • Further combustion chambers 8 and 9 are located above the internals 2 and 3.
  • Figure 2 shows the internals in cross section along the line A-A.
  • edge lengths 1165 mm and 1498 mm result.
  • the internals 2 and 3 have a distance 6 of 83 mm on all sides from the surrounding walls of the heating element 1.
  • the individual honeycombs have a square cross section with an edge length of approximately 50 mm.
  • FIGS. 3 to 5 show a further heating train 10 with the same dimensions as the heating train 1.
  • the heating train 10 is provided with a grid honeycomb construction 11 which, under otherwise identical conditions, leaves one half of the heating train widening upwards 10 in this extends.
  • the relevant boundary line 12 runs in the drawing from the upper right heating edge to the lower left heating edge.
  • the honeycomb-shaped installation 11 has a multiplicity of air outlet openings in the flue gas and combustion chamber 13, the cross section of which free from the honeycomb body increases upwards.
  • the course is adapted to an ideal flame control.
  • the flame control is based on the local conditions, especially the supplied combustion media.
  • FIG. 5 shows a cross section along the line B-B in FIG. 3.
  • FIGS. 6 to 8 show a further heating train 20, which is identical to heating trains 1 and 10, but has a different installation 21.
  • the other installation 21 is pyramid-shaped and extends to a height of 5660 mm. This design of the installation 21 corresponds to the optimal flame profile here.
  • FIG. 8 contains a sectional illustration along the line C-C in FIG. 6.
  • Figures 9 and 10 show the same heating train 30, which has a bed of balls 31 as an installation.
  • the ball bed is different over the length of the heating cable 30.
  • Cavities 32, 33, 34 and 35 are used as combustion chambers with a larger free cross section than the dense ball bed 31 educated.
  • the upper cavity 35 and the lower cavity 32 have the same length of 1165 mm and the same distance from the next heating cable end of 500 mm.
  • the cavity 33 has a length of 333 mm, the cavity 34 has a length of 1498 mm.
  • the width of all cavities is approximately 1166 mm.
  • Combustion air is fed in at the bottom and into the rooms 33 and 35 via devices 36, 37, which are not shown in detail.
  • devices 36, 37 which are not shown in detail.
  • the formation of cavities and combustion air supply are designed in the sense of optimal flame control.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Coke Industry (AREA)
  • Solid-Fuel Combustion (AREA)
  • Incineration Of Waste (AREA)

Abstract

Selon la présente invention, les chambres de chauffage dans des fours à coke sont pourvues de chicanes pour optimiser le guidage des flammes et le transfert de chaleur sur la hauteur des carneaux de chauffage.

Claims (9)

  1. Compartiments de chauffage dans des fours à coke, caractérisés par des éléments incorporés en forme de grilles à alvéoles perméables (2, 3, 11, 21) et/ou d'entassement de billes (31) pour un guidage de flamme optimisé sur la hauteur du carneau.
  2. Dispositif selon la revendication 1, caractérisé en ce que les éléments incorporés se composent de céramique.
  3. Dispositif selon la revendication 1 ou 2, caractérisé par un guidage par sections des gaz de combustion.
  4. Dispositif selon l'une au moins des revendications 1 à 3, caractérisé par des éléments incorporés s'effilant et/ou s'élargissant sur la longueur des compartiments de chauffage.
  5. Dispositif selon la revendication 4, caractérisé en ce que les alvéoles de grilles (11, 12) possèdent une multiplicité d'orifices de sortie d'air répartis sur une partie au moins de la hauteur du carneau.
  6. Dispositif selon la revendication 4, caractérisé en ce que les grilles à alvéoles contiennent des guidages séparés pour les agents de combustion jusqu'à la sortie des grilles à alvéoles, et les sorties des grilles sont disposées sélectivement en fonction de la chaleur nécessaire à la hauteur correspondante.
  7. Dispositif selon l'une au moins des revendications 1 à 6, caractérisé en ce que les éléments incorporés sont recouverts d'un matériau formant catalyseur.
  8. Dispositif selon la revendication 3, caractérisé en ce qu'il est prévu, au-dessus de sections comportant des éléments incorporés à alvéoles (2, 3) ou un entassement de billes (31), dans des compartiments de combustion (8, 9, 13, 33, 35) de grande section transversale libre, des dispositifs (4, 5, 36, 37) pour l'amenée d'air de combustion.
  9. Procédé pour le chauffage de fours à coke à l'aide de compartiments de chauffage dans lesquels sont introduits du gaz et de l'air de combustion, utilisant dans les carneaux des éléments incorporés selon l'une au moins des revendications 1 à 8, caractérisé en ce que le gaz est tout d'abord brûlé seulement avec une faible quantité d'air inférieure à la stoechiométrie, et de l'air de combustion supplémentaire est amené vers le mélange gaz-gaz de combustion montant dans le carneau, régulièrement à travers les éléments incorporés ou par ailleurs, au-dessus de ceux-ci, jusqu'à la combustion complète.
EP90906914A 1989-05-23 1990-05-23 Chambre de chauffage dans des fours a coke et procede de chauffage Expired - Lifetime EP0427828B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90906914T ATE86648T1 (de) 1989-05-23 1990-05-23 Beheizungsraeume in koksoefen und verfahren zur beheizung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3916728 1989-05-23
DE3916728A DE3916728C1 (fr) 1989-05-23 1989-05-23

Publications (2)

Publication Number Publication Date
EP0427828A1 EP0427828A1 (fr) 1991-05-22
EP0427828B1 true EP0427828B1 (fr) 1993-03-10

Family

ID=6381210

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90906914A Expired - Lifetime EP0427828B1 (fr) 1989-05-23 1990-05-23 Chambre de chauffage dans des fours a coke et procede de chauffage

Country Status (6)

Country Link
US (1) US5137602A (fr)
EP (1) EP0427828B1 (fr)
JP (1) JPH04500093A (fr)
DE (2) DE3916728C1 (fr)
ES (1) ES2040121T3 (fr)
WO (1) WO1990014407A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0742276A1 (fr) * 1995-05-12 1996-11-13 Krupp Koppers GmbH Méthode d'opération de four à coke
DE10233819A1 (de) * 2002-07-25 2004-02-12 Thyssenkrupp Encoke Gmbh Verfahren zur Abtrennung von Schwefelwasserstoff aus Koksofengas mit nachfolgender Gewinnung von elementarem Schwefel in einer Claus-Anlage
DE10233820A1 (de) * 2002-07-25 2004-02-12 Thyssenkrupp Encoke Gmbh Spaltreaktor für eine Claus-Anlage
JP3906796B2 (ja) 2002-12-19 2007-04-18 株式会社豊田自動織機 容量可変型の圧縮機の制御装置
JP5428828B2 (ja) * 2009-12-18 2014-02-26 新日鐵住金株式会社 コークス炉及びその運転方法
DE102017216436A1 (de) 2017-09-15 2019-03-21 Thyssenkrupp Ag Koksofenvorrichtung mit zentrischer Rezirkulation zum Herstellen von Koks und Verfahren zum Betreiben der Koksofenvorrichtung sowie Steuerungseinrichtung und Verwendung
TWI681048B (zh) 2017-09-15 2020-01-01 德商蒂森克虜伯工業解決方案股份有限公司 用於生產焦炭的包含具圍繞其之環繞流動之環形流動路徑的焦爐裝置、焦爐裝置的操作方法及其控制裝置與用途
DE102017216439A1 (de) 2017-09-15 2019-03-21 Thyssenkrupp Ag Koksofenvorrichtung mit umströmtem Kreisstrompfad zum Herstellen von Koks und Verfahren zum Betreiben der Koksofenvorrichtung sowie Steuerungseinrichtung und Verwendung
DE102017216437A1 (de) 2017-09-15 2019-03-21 Thyssenkrupp Ag Koksofenvorrichtung mit exzentrischen Einlässen zum Herstellen von Koks und Verfahren zum Betreiben der Koksofenvorrichtung sowie Steuerungseinrichtung und Verwendung
DE102019206628B4 (de) 2019-05-08 2024-04-18 Thyssenkrupp Ag Koksofenvorrichtung zum Herstellen von Koks und Verfahren zum Betreiben der Koksofenvorrichtung sowie Verwendung

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE391501C (de) * 1915-02-10 1924-03-10 Roberts Arthur Verfahren zum Beheizen eines Koksofens o. dgl.
US1891700A (en) * 1927-01-31 1932-12-20 Firm Carl Still Method of heating coke ovens
US1805922A (en) * 1928-07-14 1931-05-19 Otto Carl Horizontal coke oven
DE655948C (de) * 1934-12-09 1938-01-26 Didier Werke Ag Heizzug fuer einen langgestreckten, aussenbeheizten Gegenstand
DE718962C (de) * 1934-12-09 1942-03-25 Didier Werke Ag Einrichtung zur Aussenbeheizung von langgestreckten Ofenwaenden mittels Heizzuege
JPS5375201A (en) * 1976-12-17 1978-07-04 Nippon Steel Corp Combustion in coke ovens
DE3111476A1 (de) * 1981-03-24 1982-10-07 Dr. C. Otto & Comp. Gmbh, 4630 Bochum "batterieweise angeordneter kammerofen zur erzeugungvon koks und gas"

Also Published As

Publication number Publication date
WO1990014407A1 (fr) 1990-11-29
US5137602A (en) 1992-08-11
DE59001009D1 (de) 1993-04-15
EP0427828A1 (fr) 1991-05-22
DE3916728C1 (fr) 1990-12-20
ES2040121T3 (es) 1993-10-01
JPH04500093A (ja) 1992-01-09

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