DE150845C - - Google Patents

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Publication number
DE150845C
DE150845C DENDAT150845D DE150845DA DE150845C DE 150845 C DE150845 C DE 150845C DE NDAT150845 D DENDAT150845 D DE NDAT150845D DE 150845D A DE150845D A DE 150845DA DE 150845 C DE150845 C DE 150845C
Authority
DE
Germany
Prior art keywords
layer
furnace lining
chamotte
clinker
mass
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.)
Active
Application number
DENDAT150845D
Other languages
German (de)
Publication of DE150845C publication Critical patent/DE150845C/de
Active legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23MCASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00Casings; Linings; Walls
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/66Monolithic refractories or refractory mortars, including those whether or not containing clay
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F27B7/28Arrangements of linings

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Beim Brennen von Portlandzement und ähnlichen, basische Stoffe enthaltenden Massen in Drehöfen wird das aus Chamottesteinen bestehende Futter durch Einwirkung der Basen auf die Säuren der Chamotte (Tonerde und Kieselsäure) in der Glühhitze häutig stark angegriffen. Um dies zu verhüten, empfiehlt es sich, auf der Oberfläche der Chamotte eine Schicht des Brenngutes anzubringen, welcheWhen firing Portland cement and similar compounds containing basic substances In rotary kilns, the lining made of chamotte stones is created by the action of the bases on the acids of the chamotte (clay and silicic acid) in the glowing heat often strong attacked. To prevent this, it is advisable to place a To apply layer of the firing material, which

ίο die erstere schützt. Eine solche Schicht entsteht gelegentlich, wenn das Futter vorher stark erhitzt war, von selbst durch die Verbindung der Chamotte mit dem Zement. Jedoch ist eine auf diese Weise entstandene Schutzschicht fast immer unregelmäßig und ■ wenig haltbar, weil leicht Stücke derselben abplatzen, zweitens erfordert ihre Herstellung erheblichen Wärmeaufwand, da die Chamotte bis zum Weichwerden erhitzt sein mußte, und drittens geht bei der jedesmaligen Bildung der Schicht ein beträchtlicher Teil der Chamottemasse in dieselbe über, so daß also die Ergänzung bezw. Erneuerung immer auf Kosten der teuren Chamotte stattfindet und die Haltbarkeit der letzteren eine beschränkte bleibt.ίο the former protects. Such a layer is created occasionally, if the food was previously very heated, by itself through the compound the chamotte with the cement. However, a protective layer created in this way is almost always irregular and ■ not very durable, because pieces of the same easily flake off, secondly, their production requires considerable heat input, since the chamotte had to be heated to softening, and thirdly, each time the layer is formed, a considerable part of the chamotte mass goes in the same over, so that the addition respectively. Renewal always takes place at the expense of the expensive chamotte and the shelf life of the latter remains limited.

Gemäß der Erfindung soll das Anbringen des klinkerartigen Überzuges verbilligt und vereinfacht, seine Haltbarkeit erhöht werden.According to the invention, the application of the clinker-like coating should be cheaper and simplified, its durability can be increased.

Es geschieht dies folgendermaßen:It does this as follows:

Auf das Ofenfutter werden eine Schicht Kochsalz oder eine andere im Feuer flüssigwerdende geeignete Masse, z. B. Ton, Sand, Ziegelmehl, Schlacken, kalkige Zementmischung, Eisenverbindungen und dergl., gebracht und diese Masse zum Weichwerden bezw. Fließen, erhitzt. Hierauf wird auf diese klebrige Masse Zementbrenngut gebracht, welches dann, ohne die Chamottemasse wesentlich anzugreifen, einen schützenden Überzug bildet. Dies Verfahren gewährt u. a. den Vorzug, daß die Ausbesserung der Stellen, wo die klinkerartige Masse ausgeplatzt ist, leicht während des Betriebes vorgenommen werden kann, indem man diese Stellen mit den erwähnten Stoffen versieht, letztere bis zum Weichwerden erhitzt und dann gewöhnliche Zementmasse aufträgt.A layer of table salt or another suitable mass that becomes liquid in the fire, e.g. B. clay, sand, Brick powder, slag, calcareous cement mixture, iron compounds and the like., Brought and this mass to soften BEZW. Flow, heated. This is followed by this sticky mass cement burnt material, which then, without the chamotte mass, is essential to attack, forms a protective coating. This procedure grants inter alia the advantage that the repair of the places where the clinker-like mass has burst, easily done during operation by providing these places with the substances mentioned, the latter up to heated to soften, and then apply ordinary cement paste.

Claims (1)

Patent-Anspruch:Patent claim: Verfahren zur Herstellung eines klinkerartigen Überzuges auf dem Ofenfutter von rotierenden Zementbrennöfen, dadurch gekennzeichnet, daß man das Ofenfutter mit einer Schicht Salz oder anderer geeigneter Masse versieht, diese durch Anwendung von Hitze flüssig macht, wobei die Oberfläche des Ofenfutters mit einer weichen, klebrigen Schicht versehen wird, worauf auf diese so vorbereitete Oberfläche eine Schicht von Zementmasse oder dergl. gebracht wird, welche so mit der . Oberfläche des Ofenfutters verbunden wird und. einen klinkerartigen Schutzüberzug für das Ofenfutter bildet.Process for the production of a clinker-like coating on the furnace lining of rotating cement kilns, characterized in that the kiln lining with a layer of salt or other suitable Mass provides, this makes it liquid by the application of heat, whereby the surface of the furnace lining with a soft, sticky layer is applied, whereupon this prepared surface a layer of cement paste or the like. Is brought, which so with the. Surface of the furnace lining is connected and. forms a clinker-like protective coating for the furnace lining. (2. Auflage, ausgegeben am 26. November igoy.J(2nd edition, issued on November 26th igoy.J
DENDAT150845D Active DE150845C (en)

Publications (1)

Publication Number Publication Date
DE150845C true DE150845C (en)

Family

ID=417716

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Application Number Title Priority Date Filing Date
DENDAT150845D Active DE150845C (en)

Country Status (1)

Country Link
DE (1) DE150845C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE861998C (en) * 1935-11-21 1953-01-08 Norton Ges M B H Deutsche Process and furnace for the production of carbides of boron, silicon, titanium or tungsten

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE861998C (en) * 1935-11-21 1953-01-08 Norton Ges M B H Deutsche Process and furnace for the production of carbides of boron, silicon, titanium or tungsten

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