DE150845C - - Google Patents
Info
- 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
Links
- 239000004568 cement Substances 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 239000011253 protective coating Substances 0.000 claims description 2
- 239000011780 sodium chloride Substances 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims 1
- 239000010410 layer Substances 0.000 description 4
- 239000004927 clay Substances 0.000 description 2
- 229910052570 clay Inorganic materials 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N Silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 150000002506 iron compounds Chemical class 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, 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
- F23M5/00—Casings; Linings; Walls
-
- 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
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/28—Arrangements 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)
Publications (1)
Publication Number | Publication Date |
---|---|
DE150845C true DE150845C (en) |
Family
ID=417716
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT150845D Active DE150845C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE150845C (en) |
Cited By (1)
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 |
-
0
- DE DENDAT150845D patent/DE150845C/de active Active
Cited By (1)
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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