EP0089623B1 - Verkokungsofen - Google Patents

Verkokungsofen Download PDF

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Publication number
EP0089623B1
EP0089623B1 EP83102630A EP83102630A EP0089623B1 EP 0089623 B1 EP0089623 B1 EP 0089623B1 EP 83102630 A EP83102630 A EP 83102630A EP 83102630 A EP83102630 A EP 83102630A EP 0089623 B1 EP0089623 B1 EP 0089623B1
Authority
EP
European Patent Office
Prior art keywords
heating
coke oven
frame construction
walls
plates
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
Application number
EP83102630A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0089623A2 (de
EP0089623A3 (en
Inventor
Dirk Dipl.-Ing. Kruse
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.)
Bergwerksverband GmbH
Original Assignee
Bergwerksverband 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 Bergwerksverband GmbH filed Critical Bergwerksverband GmbH
Publication of EP0089623A2 publication Critical patent/EP0089623A2/de
Publication of EP0089623A3 publication Critical patent/EP0089623A3/de
Application granted granted Critical
Publication of EP0089623B1 publication Critical patent/EP0089623B1/de
Expired 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
    • C10B29/00—Other details of coke ovens
    • C10B29/02—Brickwork, e.g. casings, linings, walls

Definitions

  • the invention relates to a coking oven with walls between heating trains and coke chambers made of refractory material.
  • the heat flow can be increased by increasing the heating draft temperatures and / or by using refractory bricks with higher thermal conductivity instead of the conventional silica material or particularly thin bricks made from such silica material (DE-PS 2161 980).
  • a further reduction in the heating wall thickness is not justifiable for mechanical, especially structural reasons.
  • a refractory retort module is known from a thin-walled main surface with a solid, tongue and groove frame.
  • Such retort modules do have an improved heat transfer coefficient compared to uniformly thick modules, but the material thickness of the thin-walled main surfaces cannot be chosen to be as thin as desired compared to the frame, because otherwise different thermal expansions between the main surface and the frame lead to stress cracks.
  • the size of such stones is limited because of their one-piece design. Particular difficulties arise when such stones are used for the walls of coke oven chambers, since they are only poorly suited for the interlocking of runner and binder stones.
  • the invention is therefore based on the object of creating a coking oven of the type mentioned with heating walls with higher heat transfer rates and at the same time avoiding reversible thermal expansion of the heating walls as a whole at temperatures above 1000 ° C., and a solid connection between the binding stones separating the heating trains and to ensure the runner blocks separating the coke oven chambers from the heating trains.
  • the invention is based on the basic idea of filling a lattice-like, self-supporting framework made of refractory bricks of material composition "A” with thin panels of material composition "B” that fill the free lattice areas and serve only as high a heat transfer as possible.
  • This separation of the supporting function from the function of heat conduction allows the two functional elements to be optimally designed.
  • the resulting frontal joints at the plate edges compared to the frame construction allow a different thermal expansion between the two functional elements without stress cracks.
  • Refractory bricks have been found to be particularly favorable with regard to the stability of the lattice-shaped frame construction, which at the same time separate the individual adjacent heating cables of a heating wall of the coking oven.
  • preferably two horizontally juxtaposed refractory bricks of two opposing heating walls form the binding bricks separating the heating trains from one another. This results in a particularly high strength of the frame construction.
  • the heat transfer coefficient through the heating walls is improved in that they are created from a strong horizontal and vertical continuous latticework made of fireproof stones known per se and suitable for heating walls, in particular from silica stones, and plates from a likewise fire-resistant material of a reasonable size and comparatively enclose a high heat transfer coefficient, the thermal conductivity of which is higher than that of the stones used for the frame construction, e.g. B. SiC stones or SiC-containing plates (see DE-PS 2 019 078) in a frame construction made of silica stones.
  • the plate format should not be larger than a justifiable tight joint can compensate for absolute changes in length and width resulting from the format dimensions. This largely prevents mechanical stress on the frame structure from the plates.
  • suitable tongue and groove connections should be provided between these areas. It is advisable to only slightly chamfer the side surfaces of the tongue and groove, or even to design them at right angles to the top surfaces and mortar them. - So when the tongue is moved relative to the groove, there is only a minimal change in the joint width, so that the joint remains practically tight.
  • the joints mentioned can be filled with an easily deformable sealing material in the region of their end faces lying opposite one another transversely to the wall plane, in particular cavities formed by the joints should be provided with such material.
  • the top surfaces of the tongues and the bottom surfaces of the groove can be sealed against each other when bricking with ceramic fibers or possibly cardboard strips in order to keep a space for the reversible expansion of the plates after heating up the coking oven.
  • the proposed construction enables the heating walls to be easily installed on a conventional substructure (sub-furnace); therefore, it can also be used in a coking oven to be repaired from the chamber bottom, e.g. H. be retrofitted.
  • the heating walls are made up of approximately 50% of the plates containing at least 50% silicon carbide and, moreover, of a lattice-shaped frame construction made of silica stones, the average heating chamber temperature on the chamber side increases at the same heating draft temperature by approximately 100 ° C compared to a heating wall made of silica stones with the same average wall thickness.
  • FIG. 1 shows a section of a horizontal coking furnace with walls (heating walls) 2 between heating trains 3 and coke chambers 4.
  • the heating walls 2 consist of a lattice-shaped frame structure 5, of known, refractory stones 6 and the frame-filling plates 7 with a relatively high heat transfer coefficient, e.g. Silicon carbide.
  • These stones can also have cavities 7a known per se on the heating-pull side to further improve the heat transfer coefficient, in particular they can be designed to be comparatively thin compared to the previously known so-called rotor stones.
  • Refractory bricks 6, which form the verticals of the frame structure 5, have a depth transversely to the heating walls 2 such that opposing refractory bricks meet two heating walls and thus form the heating blocks 3 separating binder stones. Different depths of the opposing refractory bricks allow solid interlocking when laid alternately.
  • Fig. 2 illustrates the lattice-shaped frame construction, in which e.g. horizontally several refractory bricks 6 are stacked on top of one another and possibly mortared, while vertical refractory bricks 6 bridge the spaces between the vertical columns in a yoke-like manner, with toothing 6a capturing the frame structure securely against shear and tensile forces at the crossing points of the latticework.
  • FIG 3 shows a possible design of the joints between the refractory bricks 6 of the frame structure 5 and the plates 7.
  • a tongue and groove design was selected with only slightly beveled side surfaces of the grooves 8a and the tongues 8b.
  • the joint 8 runs through the wall 2 from surface to surface and is filled with mortar.
  • a cavity located between the end faces 9 of the refractory bricks 6 and the plates 7 which lie opposite one another transversely to the wall plane can also be completely or partially filled by an elastic sealing material 11; this applies particularly to cavities 10, as shown on the bottom of the groove 8.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Silicon Compounds (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
EP83102630A 1982-03-19 1983-03-17 Verkokungsofen Expired EP0089623B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823210108 DE3210108A1 (de) 1982-03-19 1982-03-19 Verkokungsofen
DE3210108 1982-03-19

Publications (3)

Publication Number Publication Date
EP0089623A2 EP0089623A2 (de) 1983-09-28
EP0089623A3 EP0089623A3 (en) 1985-01-09
EP0089623B1 true EP0089623B1 (de) 1986-10-08

Family

ID=6158731

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83102630A Expired EP0089623B1 (de) 1982-03-19 1983-03-17 Verkokungsofen

Country Status (7)

Country Link
US (1) US4565605A (es)
EP (1) EP0089623B1 (es)
JP (1) JPS58168684A (es)
AU (1) AU551055B2 (es)
BR (1) BR8301382A (es)
DE (2) DE3210108A1 (es)
ES (1) ES279838Y (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6418139U (es) * 1987-07-24 1989-01-30
JPH0776339B2 (ja) * 1988-05-24 1995-08-16 ルールコーレ アクチエンゲゼルシヤフト コークス炉の天井
DE8910715U1 (de) * 1989-09-08 1989-10-19 Ruhrkohle Ag, 4300 Essen Koksofenkammertür
US5227106A (en) * 1990-02-09 1993-07-13 Tonawanda Coke Corporation Process for making large size cast monolithic refractory repair modules suitable for use in a coke oven repair
US5137603A (en) * 1991-01-16 1992-08-11 Resco Products, Inc. Oven walls
US5597452A (en) * 1992-09-24 1997-01-28 Robert Bosch Gmbh Method of restoring heating walls of coke oven battery
US7827689B2 (en) * 2007-01-16 2010-11-09 Vanocur Refractories, L.L.C. Coke oven reconstruction
US8266853B2 (en) 2009-05-12 2012-09-18 Vanocur Refractories Llc Corbel repairs of coke ovens
CN114989836A (zh) * 2022-05-29 2022-09-02 中国五冶集团有限公司 一种热回收焦炉含填充物的膨胀缝施工方法
CN115449378B (zh) * 2022-09-29 2024-05-14 中冶焦耐(大连)工程技术有限公司 一种电加热焦炉的加热室结构

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE143332C (es) *
US682441A (en) * 1901-05-22 1901-09-10 Samuel T Wellman Coke-oven.
GB299795A (en) * 1927-04-27 1928-10-29 Low Temp Carbonisation Ltd Improvements relating to retorts for the distillation of solid carbonaceous substances
US2091703A (en) * 1936-02-14 1937-08-31 Koppers Co Inc Coking retort oven structure
US2839453A (en) * 1953-10-20 1958-06-17 Koppers Co Inc Coking retort oven with graduated liner wall
US2850196A (en) * 1955-06-06 1958-09-02 Goodyear Tire & Rubber Joint structure
GB806610A (en) * 1955-08-11 1958-12-31 Carl Otto Improvements relating to coke oven heating walls
US3102846A (en) * 1961-04-20 1963-09-03 Koppers Co Inc Coking retort oven with liner walls of two thicknesses
US3496067A (en) * 1967-01-27 1970-02-17 Koppers Co Inc Horizontal coke oven having plural types of brick linings for heating walls
DE2019078C3 (de) * 1970-04-21 1974-01-10 Bergwerksverband Gmbh, 4300 Essen SiC-haltiger feuerfester Stein für die Ausmauerung von diskontinuierlich betriebenen Verkokungsöfen
US4039342A (en) * 1970-04-21 1977-08-02 Bergwerksverband Gmbh Firebricks
DE2056119B2 (de) * 1970-11-14 1974-09-05 Bergwerksverband Gmbh, 4300 Essen Koksöfen mit hoher spezifischer Durchsatzleistung
DE2161980C3 (de) * 1971-12-14 1974-10-10 Bergwerksverband Gmbh, 4300 Essen-Kray Waagerechter Verkokungsofen
DE2713461C2 (de) * 1977-03-26 1979-05-23 Bergwerksverband Gmbh, 4300 Essen Horizontaler Verkokungsofen
DE2908839C2 (de) * 1979-03-07 1985-06-27 Carl Still Gmbh & Co Kg, 4350 Recklinghausen Vorrichtung zur Abdichtung der Kammern von Verkokungsöfen

Also Published As

Publication number Publication date
DE3366704D1 (en) 1986-11-13
DE3210108A1 (de) 1983-09-22
ES279838Y (es) 1985-11-16
AU1259383A (en) 1983-09-22
EP0089623A2 (de) 1983-09-28
JPS58168684A (ja) 1983-10-05
ES279838U (es) 1985-04-16
AU551055B2 (en) 1986-04-17
BR8301382A (pt) 1983-11-29
US4565605A (en) 1986-01-21
EP0089623A3 (en) 1985-01-09

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