DE2947182A1 - Pure quartz refractory coke oven bricks - or prefabricated components, for reduced frictional resistance on pressing - Google Patents

Pure quartz refractory coke oven bricks - or prefabricated components, for reduced frictional resistance on pressing

Info

Publication number
DE2947182A1
DE2947182A1 DE19792947182 DE2947182A DE2947182A1 DE 2947182 A1 DE2947182 A1 DE 2947182A1 DE 19792947182 DE19792947182 DE 19792947182 DE 2947182 A DE2947182 A DE 2947182A DE 2947182 A1 DE2947182 A1 DE 2947182A1
Authority
DE
Germany
Prior art keywords
coke oven
bricks
pressing
frictional resistance
pure quartz
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.)
Withdrawn
Application number
DE19792947182
Other languages
German (de)
Inventor
Antrag Auf Nichtnennung
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
Priority to DE19792947182 priority Critical patent/DE2947182A1/en
Publication of DE2947182A1 publication Critical patent/DE2947182A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/14—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silica
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

Refractory coke oven bricks consist of at least 99% pure quartz (SiO2). The bricks are cast in moulds or mfd with the aid of a binder. Coke oven performance is undiminished. The bricks resist temp changes and have a smooth surface. agglomeration and encrustation on brick surfaces are prevented. Frictional resistance on pressing the coke is reduced. The brick material used allows coke oven building out of pre- fabricated components, either having the same measurements, or forming an individual furnace wall or ceiling.

Description

Feuerfastes Steinmaterial für KoksöfenRefractory stone material for coke ovens

Die Erfindung betrifft feuerfestes Steinmaterial für Koksöfen. Im Koksofenbau wird dazu üblicherweise verdichtetes Silika-Steinmaterial angewandt. Bei den Öfen werden bei Heizzugter.peraturon von 1.200 bis 1.400 °C und Kammerbreiten von 450 mm Garungszeiten von 15 bis 20 Stunden erreicht.The invention relates to refractory stone material for coke ovens. in the Coke oven construction is usually done using compacted silica stone material. In the case of the ovens, the heating temperature is from 1,200 to 1,400 ° C and chamber widths of 450 mm, cooking times of 15 to 20 hours are achieved.

Das Siiika-Steinmaterial läßt keine ueiteren Loistungssteigerungen aufgrund der Wärmeleitfähigkeit und der oberen Tenperaturgrenze zu.The Siiika stone material does not allow any further increases in Loistenzeit due to the thermal conductivity and the upper temperature limit.

Neben dem erwähnten Steinmaterial wurde auch Magnesit und Starkit zur weiteren Leistungssteigerung erprobt.In addition to the stone material mentioned, magnesite and starkite were also found tested to further increase performance.

Das Material konnte sich in der Praxis jedoch nicht durchsetzen.However, the material could not establish itself in practice.

Alle bekannten Steinmaterialien weisen eine rauhe überfläche auf und neigen zu Graphitansätzen und Anbackungen bein Verkräcken der Entgasungsprodukte. Die materialien sind eußerden nur optimal einzusetzen, uenn der Koksofenbetrieb in einem engen Temperaturbereich gehalten wird.All known stone materials have a rough surface and tend to graphite deposits and caking when the degassing products become caked. The materials are also only to be used optimally when operating the coke oven is kept in a narrow temperature range.

Der Erfindung liegt daher die Aufgabe zugrunde. die Materialeigenschaften von Kokofensteinen zu verbessern. Nach der Erfindung wird das dadurch erreicht, daß er Anteil n Siliciumoxid (SiO2) auf mindestens 99 % reines Quarz (SiO2) erhöht wird. Nach der Erfindung werden derartige Koksofensteina gegossen oder mit einen Binder horgostellt.The invention is therefore based on the object. the material properties of coke oven bricks. According to the invention this is achieved by that it increases the proportion of silicon oxide (SiO2) to at least 99% pure quartz (SiO2) will. According to the invention, such coke oven stones are poured or with a Binder horgostells.

Die erfindungsgemäGen Koksofensteine erlauben mindestens die gleiche Koksofenleistung wie her-kömmliche Steine.The coke oven bricks according to the invention allow at least the same Coke oven performance like conventional stones.

Sie sind großen Temperaturschwankungen gegenüber flexibel und besitzen eino außerordentlich glatte Oberfläche. Die glatte Oberfläche führt zu besseren Umweitschutzbedingungen, da insbesondere zwischen dem Koksofentürstopfen und der Kammerwand sowie an der Ofendecke keine Anbackungen und Verkrustungen mehr entstehen. Dadurch erübrigen sich aufwendige Dichteinrichtungen an den Ofentüren und anderen Verschlüssen des Koksofens. Ferner wird der Reibungswiderstand beim Ausdrücken des Kokskuchens durch die glatte Überfläche des erfindungsgemäßen Steinrtaterials herabgesetzt.They are flexible and possess large temperature fluctuations an extremely smooth surface. The smooth surface leads to better ones Umweitschutzbedingungen, since in particular between the coke oven door stopper and the Chamber wall as well as on the furnace roof no more caking and encrustations arise. This eliminates the need for complex sealing devices on the oven doors and others Closures of the coke oven. Furthermore, the frictional resistance when expressing the Coke cake reduced by the smooth surface of the stone material according to the invention.

Der geringere Reibungswiderstand nacht geringere Kräfte beim Drücken des Kokses erforderlich bzw. erlaubt größere Füllvolumina bei Koksöfen.The lower frictional resistance and lower forces when pressing of the coke is required or allows larger filling volumes in coke ovens.

Das erfindungsgemäße Steinmaterial ist ein möglichst reines Siliciumoxid in chemisch gebundenem und geschmolzenem Zustand. Die Herstellungsmöglichkeiten eines solchen Steinneterils erlauben es, Koksöfen auch aus Fertigteilen zu erichten, so daß auf die übliche aufwendige Mauerungstechnik für Koksöfen verzichtr3t worden kann. Die Fertigteile können wahlweise alle gleiche Form besitzen oder jeweils eine einstückige Ofenwand oder Ofendecke bilden.The stone material according to the invention is as pure a silicon oxide as possible in chemically bound and molten state. The manufacturing capabilities such a Steinneterils make it possible to build coke ovens from prefabricated parts, so that the usual complex masonry technology for coke ovens has been dispensed with can. The finished parts can optionally all have the same shape or one each Form a one-piece furnace wall or furnace ceiling.

Claims (3)

Patentasprüche reuerfestes Steinmaterial für Koksöfen, überwiegend bestehend aus SiO2 gekennzeichnet durch mindestens 99 % reines Quarz (SiO2) und formgegossene Steine oder mittels Binder hergestellter Stein.Patent claims for fire-resistant stone material for coke ovens, predominantly consisting of SiO2 characterized by at least 99% pure quartz (SiO2) and molded stones or stone made by means of binders. 2. Feuerfestes Steinmaterial nach Anspruch 1, gekennzeichnet durch einstückig hergestellte Koksofenwände.2. Refractory stone material according to claim 1, characterized by one-piece coke oven walls. 3. Feuerfestes Steinmaterial nach Anspruch 1, dadurch gekennzeichnet, daß alle Koksofensteine gleiche Abmessungen aufweisen.3. Refractory stone material according to claim 1, characterized in that that all coke oven bricks have the same dimensions.
DE19792947182 1979-11-23 1979-11-23 Pure quartz refractory coke oven bricks - or prefabricated components, for reduced frictional resistance on pressing Withdrawn DE2947182A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19792947182 DE2947182A1 (en) 1979-11-23 1979-11-23 Pure quartz refractory coke oven bricks - or prefabricated components, for reduced frictional resistance on pressing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792947182 DE2947182A1 (en) 1979-11-23 1979-11-23 Pure quartz refractory coke oven bricks - or prefabricated components, for reduced frictional resistance on pressing

Publications (1)

Publication Number Publication Date
DE2947182A1 true DE2947182A1 (en) 1981-05-27

Family

ID=6086655

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792947182 Withdrawn DE2947182A1 (en) 1979-11-23 1979-11-23 Pure quartz refractory coke oven bricks - or prefabricated components, for reduced frictional resistance on pressing

Country Status (1)

Country Link
DE (1) DE2947182A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3401162A1 (en) * 1984-01-14 1985-07-18 Didier Engineering Gmbh, 4300 Essen Heating wall for coke ovens
DE4103737A1 (en) * 1990-02-09 1991-08-14 Detroit Coke Corp Cast modules for replacing damaged brickwork in heating walls - are of silica based mixture and have high resistance to deformation and thermal shock, useful for coke oven batteries

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DE-Z.: Glas-Email-Keramo-Technik, 1972, 11, S. 389-399 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3401162A1 (en) * 1984-01-14 1985-07-18 Didier Engineering Gmbh, 4300 Essen Heating wall for coke ovens
DE4103737A1 (en) * 1990-02-09 1991-08-14 Detroit Coke Corp Cast modules for replacing damaged brickwork in heating walls - are of silica based mixture and have high resistance to deformation and thermal shock, useful for coke oven batteries
DE4103737C2 (en) * 1990-02-09 2000-05-11 Detroit Coke Corp Repair of coke oven batteries

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8110 Request for examination paragraph 44
8130 Withdrawal