EP0290791B1 - Bouchons creux en céramique pour portes de fours à coke - Google Patents

Bouchons creux en céramique pour portes de fours à coke Download PDF

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Publication number
EP0290791B1
EP0290791B1 EP88105686A EP88105686A EP0290791B1 EP 0290791 B1 EP0290791 B1 EP 0290791B1 EP 88105686 A EP88105686 A EP 88105686A EP 88105686 A EP88105686 A EP 88105686A EP 0290791 B1 EP0290791 B1 EP 0290791B1
Authority
EP
European Patent Office
Prior art keywords
plug
door
coke oven
accordance
mats
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
EP88105686A
Other languages
German (de)
English (en)
Other versions
EP0290791A1 (fr
Inventor
Klaus Dr.-Ing. Wessiepe
Wilhelm Dr. Stewen
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.)
RAG AG
Original Assignee
Ruhrkohle AG
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 Ruhrkohle AG filed Critical Ruhrkohle AG
Publication of EP0290791A1 publication Critical patent/EP0290791A1/fr
Application granted granted Critical
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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
    • C10B25/00—Doors or closures for coke ovens
    • C10B25/02—Doors; Door frames
    • C10B25/06—Doors; Door frames for ovens with horizontal chambers

Definitions

  • the invention relates to a stopper for coke oven chamber doors with a gas collection chamber extending in the longitudinal direction and accessible to the gaseous coking products, the stopper being hollow and having a plurality of openings distributed along its length, which are located on the side facing the furnace chamber.
  • the coke oven doors are usually provided with plugs made of refractory material, which extend approx. 400 mm into the coke oven chamber and in this way prevent heat losses and inadmissible temperature increases in the iron oven fittings - such as chamber frames, wall protection plates and door bodies.
  • the door bodies are also provided with cutting edges, which seal iron on iron to ensure that the resulting gaseous and vaporous coking products cannot escape into the atmosphere.
  • the known refractory plugs have a high weight and require correspondingly sturdy door bodies and door lifting devices.
  • door plugs which are box-shaped and made of highly heat-resistant steel to avoid the disadvantages described above.
  • the steel box forms a gas collecting space which extends in the longitudinal direction on the coke oven door and is accessible to the steam or gaseous coking products.
  • door plates In the development of door plugs - starting with the box-shaped door plugs - metal door plates have been adopted.
  • the door shields consisted of overlapping sheets of refractory steel. The individual sheets were held on the door body by spacers. This brought about such an extensive improvement that the door plates could be used in practice for the first time. Nevertheless, door plates made of sheet metal are still subject to considerable deformation. In addition, the refractory steel embrittles to a considerable extent with the duration of the operation.
  • the invention has for its object to eliminate the disadvantages of previous shield constructions.
  • the invention resumes with the box-shaped door plug, the development of which has been stopped for the reasons explained.
  • mats instead of the steel for the hollow plug, mats are used which are door-locked with refractory material.
  • Conventional structural steel mats for example plug-in metal mats or expanded metal mats, preferably made of fine-grain structural steels, or asbestos fabrics or replacement fabrics such as ceramic fibers can be used.
  • the mats can easily be subjected to any desired shape. Bends or kink and arch shapes are easy to produce.
  • the goal locking on these carrier mats is preferably carried out in negative forms. In this way, in contrast to conventional ceramic plates, a better stiffness of the plug body can be achieved without increasing the weight.
  • the mats thus formed are then goal-locked on both sides.
  • a porous ceramic material is sprayed on, which allows the carrier material to stretch to a greater extent than its own stretch. In this way it is achieved that the applied spray compound survives without damage at operating temperatures.
  • a tightly closing refractory mass is used, which for better networking and adhesion with long-fiber material, eg. B. is enriched with asbestos or its substitute materials.
  • the entire coating can be limited to 2-3 cm on each side of the mat, which increases the elasticity of the plug body and reduces its susceptibility to breakage.
  • Refractory molding compounds with good adhesion to structural steel mats and whose thermal behavior largely adapt to the metallic support structure are available.
  • the stopper body is preferably designed as a basket which is closed at the top and which can be clamped directly onto the door leaf.
  • side slots can be made in which their protected position largely prevents the penetration of coal.
  • the furnace chamber is 1, the furnace walls are 2 and the door body is designated 3.
  • the door body 3 has a sheet pile profile and is flexible in itself. It is part of the so-called Becker door, in which a sealing element in the form of the sheet pile and a force transmission element in the form of a profile frame are separated from one another.
  • the profile frame functioning as a power transmission unit interacts with the usual locking devices. Its force is transmitted in the area of the sealing surfaces of the door body by means of a large number of pressure screws which are attached all the way round and evenly spaced.
  • a plug 4 with a U-shaped cross section interacts with the door body 3.
  • the stopper 4 is designed as a hollow body and has been produced from fine-grain steel with the aid of a structural steel mat.
  • the structural steel mat has a wire thickness of 3 mm and a mesh size of 100 mm. It is shown in dashed lines in FIG. 1 and labeled 5.
  • the structural steel mat is gate-locked with refractory concrete. The goal locking was done in one form. The goal locking is done in two sections. In a first process step, the structural steel mat 5 is embedded in a porous refractory concrete. In the second stage of the process, the application of a dense refractory concrete is provided.
  • the dense refractory concrete is provided with relatively long asbestos fibers or ceramic fibers for better bonding.
  • the second coating takes place after the preliminary product has been removed with the structural steel mat 5 and porous refractory concrete from the negative mold. As a result the applied first layer of porous refractory concrete is accessible from both sides.
  • the refractory layer made of refractory concrete is designated by 6 in FIG.
  • the plug 4 is undercut on the sides 7 and 8, so that there are gas channels.
  • the stopper 4 has a U-shape in cross-section, the ends of the free legs being angled outward so that they can be held on the door body 3 with sheets or webs 9.
  • the metal sheets 9 are provided all round on the door body 3 and carry the door seal 10. With the door seal 10, the door 3 lies against the chamber frame of the coke oven, which is not shown in detail.
  • FIG. 2 shows a plug 15, which differs from the plug 4 in that it has no undercut on the side walls 16 and 17. Furthermore, the bends or collars of the stopper 15 denoted by 18 are held on the door body 3 by means of angle profiles 19. The angle profiles 19 also form the sealing surfaces of the coke oven door with the chamber frame of the coke oven, not shown in detail.
  • FIG 3 shows a section along the center line 20 in Figure 2.
  • the plug 15 is open at the top and bottom.
  • the opening at the top is used for the free extraction of the penetrating coke oven gases.
  • the opening at the lower end should allow coal to fall out when the door is lifted.
  • slots 21 are shown on the walls 16 and 17 in FIG.
  • the slots 21 serve the entry of coke oven gas into the interior of the stopper 15, which forms a vertical gas collecting space.
  • the slots 21 run obliquely.
  • FIGS. 4 to 9 show a further embodiment with a plug 25 which is closed at 26 at the top and also has a rear wall 27.
  • the plug 25 has a multilayer structure corresponding to the plugs 4 and 15, the enclosed mat being designated 28, the porous refractory layer 29 and the two outer sealing refractory concrete layers 30 and 31.
  • the closed rear front is provided with openings 32 and 33, which serve for the escape of coke oven gas.
  • the rear front 27 has hooks 34 with which the stopper 25 can be hung in the holding claws 35 of the door body denoted by 36.
  • the embodiment according to FIGS. 6 and 7 differs from that according to FIGS. 8 and 9 in that, according to FIG. 6, 35 lateral plates 37 are provided on the holding claws, which secure the hooks 34 against lateral displacement.
  • the sheets 37 can also be attached to the hook 34.
  • the sheets 38 are provided.
  • the sheets 38 are attached to the hook 34 and extend beyond the claws 35 so that the plug 25 can be secured with bolts 39.
  • the rear wall 27 in the embodiment according to FIGS. 4 to 9 has an insulating effect. It protects the furnace body from heat radiation from the coke-side plug part.
  • An insulation layer 40 is part of the structure of the rear wall.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Coke Industry (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Claims (5)

1. Buchon creux en céramique pour portes de chambres de carbonisation de fours à coke, avec un espace collecteur de gaz accessible aux produits de cokéfaction gazeux, dans lequel le bouchon est fait creux et présente plusieurs ouvertures distribuées sur sa longueur, qui se trouvent du côté tourné vers la chambre de carbonisation, caractérisé en ce que le bouchon est constitué de mats (5, 28) qui sont gunités au moyen de matière réfractaire.
2. Bouchon suivant la revendication 1, caractérisé en ce que les mats sont constitués de métal à renfoncements ou de métal déployé et/ou d'acier de construction à grain fin ou de tissus d'asbeste ou de tissus céramiques.
3. Bouchon suivant la revendication 1 ou 2, caractérisé par un gunitage en plusieurs couches, où le mat (5, 28) est entouré d'une couche poreuse et où la couche extérieure est formée d'une couche étanche.
4. Bouchon suivant, une ou plusieurs des revendications 1 à 3, caractérisé par le renforcement de la couche gunitée par de la matière en fibres.
5. Bouchon suivante ou plusieurs des revendica- tions 1 à 4, caractérisé par du béton réfractaire comme matière gunitée.
EP88105686A 1987-05-12 1988-04-09 Bouchons creux en céramique pour portes de fours à coke Expired - Lifetime EP0290791B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3715711 1987-05-12
DE19873715711 DE3715711A1 (de) 1987-05-12 1987-05-12 Keramikhohlstopfen fuer koksofentueren

Publications (2)

Publication Number Publication Date
EP0290791A1 EP0290791A1 (fr) 1988-11-17
EP0290791B1 true EP0290791B1 (fr) 1990-09-05

Family

ID=6327296

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88105686A Expired - Lifetime EP0290791B1 (fr) 1987-05-12 1988-04-09 Bouchons creux en céramique pour portes de fours à coke

Country Status (4)

Country Link
EP (1) EP0290791B1 (fr)
CN (1) CN1017442B (fr)
DE (2) DE3715711A1 (fr)
ES (1) ES2017535B3 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8910715U1 (fr) * 1989-09-08 1989-10-19 Ruhrkohle Ag, 4300 Essen, De
DE4025893C1 (fr) * 1990-08-14 1992-02-20 Ruhrkohle Ag, 4300 Essen, De
DE10240248B4 (de) * 2002-08-31 2005-04-14 Rag Ag Koksofentür mit Isolierung und Planiertür sowie Verwendung derselben
DE102008024573B4 (de) * 2008-05-21 2011-01-13 Uhde Gmbh Wandschutz für einen Heizwandkopf zwischen zwei Ofenkammeröffnungen einer Koksofenbatterie
DE102008025907B4 (de) * 2008-05-29 2015-04-30 Schott Ag Ofenmuffel
BRMU8802471Y1 (pt) * 2008-09-01 2016-11-22 Electrolux Do Brasil Sa disposições construtivas introduzidas em componentes de fogões
CN108659871B (zh) * 2017-03-28 2023-12-01 五冶集团上海有限公司 一种用于整体摘取焦炉炉门和炉门框架的夹具及使用方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2811457A (en) * 1952-12-18 1957-10-29 Johns Manville Inorganic bonded thermal insulating bodies and method of manufacture
US4118284A (en) * 1977-10-31 1978-10-03 United States Steel Corporation Plug-type coke oven door
DE3505551C2 (de) * 1985-02-18 1994-05-26 Ruhrkohle Ag Koksofentür mit einem keramischen Stopfen

Also Published As

Publication number Publication date
EP0290791A1 (fr) 1988-11-17
DE3715711A1 (de) 1988-11-24
ES2017535B3 (es) 1991-02-16
DE3860545D1 (de) 1990-10-11
CN88103020A (zh) 1988-11-30
CN1017442B (zh) 1992-07-15

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