DE897672C - Highly refractory stones and masses - Google Patents
Highly refractory stones and massesInfo
- Publication number
- DE897672C DE897672C DEA13359A DEA0013359A DE897672C DE 897672 C DE897672 C DE 897672C DE A13359 A DEA13359 A DE A13359A DE A0013359 A DEA0013359 A DE A0013359A DE 897672 C DE897672 C DE 897672C
- Authority
- DE
- Germany
- Prior art keywords
- masses
- highly refractory
- stones
- bonded
- refractory stones
- 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
Links
- 239000004575 stone Substances 0.000 title description 13
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 8
- 239000010936 titanium Substances 0.000 claims description 8
- 229910052719 titanium Inorganic materials 0.000 claims description 8
- 239000002893 slag Substances 0.000 claims description 7
- 238000005245 sintering Methods 0.000 claims description 6
- 239000011449 brick Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 3
- 238000003886 thermite process Methods 0.000 claims description 2
- 238000013459 approach Methods 0.000 description 3
- 239000003818 cinder Substances 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 235000019353 potassium silicate Nutrition 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 101000654471 Mus musculus NAD-dependent protein deacetylase sirtuin-1 Proteins 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/0003—Linings or walls
- F27D1/0006—Linings or walls formed from bricks or layers with a particular composition or specific characteristics
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Description
Hochfeuerfeste Steine und Massen Gemäß einem früheren Vorschlag werden hochfeuerfeste Steine und Massen aus einem Gemisch von Alumosilikaten und hochschmelzenden Oxyden der säurebildenden schweren Metalle der 4. bis 7. Nebengruppe des Periodischen Systems, wie Titan, Vanadin usw., insbesondere aus Schlacken hergestellt. Dabei wird das zerkleinerte Ausgangsgut z. B. mit Wasserglas vermischt und durch Pressen, Rütteln oder Stampfen verdichtet sowie anschließend bei Temperaturen von etwa 100 bis 2000 C einer Wärmebehandlung ausgesetzt.Refractory bricks and masses According to an earlier proposal highly refractory bricks and masses made from a mixture of aluminosilicates and refractory ones Oxides of the acid-forming heavy metals of the 4th to 7th subgroup of the periodic Systems, such as titanium, vanadium, etc., especially made from slag. Included the crushed starting material z. B. mixed with water glass and pressed, Vibrating or tamping compacted and then at temperatures of around 100 exposed to heat treatment up to 2000 C.
Die in dieser Weise hergestellten kaltgebundenen, hochfeuerfesten Steine und Massen haben sich infolge ihrer hohen Abriebfestigkeit sowie ihrer guten Temperaturwechselbeständigkeit und Feuerfestigkeit bewährt. The cold-bonded, highly refractory manufactured in this way Stones and masses have become due to their high abrasion resistance as well as their good Proven thermal shock resistance and fire resistance.
Es wurde nun gefunden, daß die aus Titanschlacke hergestellten kaltgebundenen Steine und Nassen eine hervorragende Ansatzabweisung bei schlechter Wärmeleitfähigkeit aufweisen, die sie besonders zur Auskleidung von solchen Ofenteilen geeignet machen, welche einer Ansatzbildung ausgesetzt sind. Erfindungsgemäß werden daher diese kaltgebundenen, hoch feuerfesten Steine oder Massen aus Titanschlacke, wie sie insbesondere beim Thermitverfahren anfällt, zum Auskleiden der Ringzonen von Lepol- und sonstigen Drehöfen sowie der Sinterzone von Schachtöfen für die Zementherstellung verwendet. It has now been found that the cold-bonded produced from titanium slag Stones and wet an excellent repulsion of deposits with poor thermal conductivity which make them particularly suitable for lining such furnace parts, which are exposed to a build-up. According to the invention, these cold-bonded, highly refractory bricks or masses of titanium slag, as they are in particular with Thermit method accrues to line the ring zones of Lepol and other Rotary kilns and the sintering zone of shaft kilns are used for cement production.
Bekanntlich treten - in Lepol- oder sonstigen Drehöfen vom Ofenauslauf aus gesehen hinter del Sinterzone häufig dadurch Störungen auf, daß sich Ansätze an der Ofenwandung festsetzen, die zu einer Ringbildung führen, den Ofenquerschnitt verringern und damit schwerwiegende Störungen des Ofenganges verursachen. Auch in der Sinterzone von Schachtöfen treten bei Verwendung der bisher bekannten Auskleidungen Anhackungen auf, welche zu Störungen führen. Es zeigte sich nun überraschenderweise, daß die aus Titanschlacke hergestellten kaltgebundenen Steine eine hervorragende Ansatzabweisung haben, so daß die angegebenen Störungen weitgehend vermieden werden. Dies dürfte auf eine gewisse Instabilität im Gefüge der kaltgebundenen Titanschlackensteine bzw. -massen zurückzuführen sein, welche sich bei der Verwendung der nur oberflächlich der Wärmeeinwirkung ausgesetzten Steine bzw. As is well known, step - in Lepol or other rotary kilns from the kiln outlet Seen from behind the sintering zone, disturbances often result from the fact that approaches Fix the furnace cross-section on the furnace wall, which leads to the formation of a ring and thus cause serious disruptions to the oven. Also in the sintering zone of shaft furnaces occurs when using the previously known linings Hacking on, which lead to disturbances. It was now showing Surprisingly, that the cold-bonded stones made from titanium slag have an excellent approach rejection, so that the specified disturbances largely be avoided. This is likely to be due to a certain instability in the structure of the cold-bonded Titanium cinder blocks or masses, which are due to the use the stones or stones that are only superficially exposed to heat.
Massen günstig auswirkt.Masses favorably.
Die Ansatzabweisung wird dabei besonders durch die schlechte Wärmeleitfähigkeit der kaltgebundenen Titanschlackensteine bzw. -massen gefördert. Diese führt zu Temperaturstauungen an der Steinoberfläche, welche durch Ausdehnungsunterschiede zwischen dem Stein und dem zunächst dünnen Ansatz dessen ständiges Abwerfen bewirken. Infolge der hohen Temperaturwechselbeständigkeit des Steines ist die Steinoberfläche den hierbei auftretenden starken Temperaturwechselbeanspruchungen gewachsen, so daß ein Abplatzen des Steinkopfes ausgeschlossen ist. The build-up rejection is particularly due to the poor thermal conductivity of the cold-bound titanium cinder blocks or masses promoted. This leads to temperature congestion on the stone surface, which is caused by differences in expansion between the stone and the initially thin approach cause it to be constantly thrown off. As a result of the high Resistance to temperature changes of the stone is the stone surface that occurs here strong thermal shock, so that the stone head flakes off is excluded.
Die neuen Steine haben einen SK von ungefähr 39 und sind daher auch stärksten Beanspruchungen in der Sinterzone von Schachtöfen gewachsen. The new stones have an SK of about 39 and are therefore Cope with the toughest stresses in the sintering zone of shaft furnaces.
Bei der Herstellung der neuen Titanschlackensteine werden beispielsweise beim Thermitverfahren anfallende Schlacken folgender Zusammensetzung verwendet: o bis 50/0 Sir2, 54 bis 750/0 A12 Oa, I,5 bis I00/0 Je20¢, I5 bis 330/0 TiO2> 2 bis 70/0 CaO, 2 bis 70/0 MgO. In the manufacture of the new titanium cinder blocks, for example Slag from the thermite process with the following composition is used: o to 50/0 Sir2, 54 to 750/0 A12 Oa, I, 5 to I00 / 0 each 20 ¢, I5 to 330/0 TiO2> 2 to 70/0 CaO, 2 to 70/0 MgO.
Die Schlacken werden zerkleinert, in entsprechenden Korngrößen zusammengestellt und mit 4bis 8 Gewichtsprozent Wasserglas (d = I,350) sowie Wasser bis zur Verformbarkeit vermischt, durch Rütteln, Pressen oder Stampfen verdichtet und einer mehrstündigen Wärmebehandlung bei 100 bis 200°/C unterworfen. Die auf diese Weise erzielten Steine oder Massen werden zum Auskleiden der Ringzonen von Lepol- und sonstigen Drehöfen sowie der Sinterzone von Schachtöfen für die Zementherstellung benutzt. The slags are crushed and put together in the appropriate grain sizes and with 4 to 8 percent by weight of water glass (d = I, 350) and water until deformable mixed, compacted by shaking, pressing or tamping, and one lasting several hours Subjected to heat treatment at 100 to 200 ° / C. The stones obtained in this way or masses are used to line the ring zones of Lepol and other rotary kilns as well as the sintering zone of shaft furnaces used for cement production.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA13359A DE897672C (en) | 1951-05-16 | 1951-05-16 | Highly refractory stones and masses |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA13359A DE897672C (en) | 1951-05-16 | 1951-05-16 | Highly refractory stones and masses |
Publications (1)
Publication Number | Publication Date |
---|---|
DE897672C true DE897672C (en) | 1953-11-23 |
Family
ID=6922823
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEA13359A Expired DE897672C (en) | 1951-05-16 | 1951-05-16 | Highly refractory stones and masses |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE897672C (en) |
-
1951
- 1951-05-16 DE DEA13359A patent/DE897672C/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE897672C (en) | Highly refractory stones and masses | |
DE2422384A1 (en) | HEAT RESISTANT LINING MATERIAL AND METHOD OF MANUFACTURING THEREOF | |
DE2362969A1 (en) | FIRE-RESISTANT ZIRCONIUM MASS | |
DE921559C (en) | Fireproof body made of silicon carbide | |
DE2040484A1 (en) | Use of a binding agent for the manufacture of components to be hardened by heat treatment and / or steam curing | |
DE829419C (en) | Process for the production of refractory bricks from sintered or melted dolomite | |
DE837823C (en) | Process for the production of fire-resistant and / or corrosion-resistant protective layers | |
DE767579C (en) | Process for the production of sintered magnesia | |
DE464312C (en) | Process for the production of refractory masses, for example for lining rotary furnaces, shaft furnaces, boiler furnaces and the like. Like. Made of molten cement with additives | |
US2764493A (en) | Process for the production of refractory masses or bricks from slags | |
DE866327C (en) | Highly refractory products | |
DE706163C (en) | Process for the manufacture of refractory products | |
AT270719B (en) | Process for the production of a lining for metallurgical furnaces, consisting of molten lime which has been mechanically comminuted by crushing, graining or grinding | |
DE945227C (en) | Process for the production of unfired, highly refractory magnesite products | |
DE933378C (en) | Process for the production of highly refractory bricks and masses from titanium slag | |
CH309125A (en) | Process for the manufacture of refractory bricks from slag. | |
EP3103780A1 (en) | Refractory ceramic product, use of such a product, electric arc furnace with tapping sput, process of filling the tapping sput of an electric arc furnace and formulation for producing a refractory ceramic product | |
DE2333601A1 (en) | GRAINY MAGNESIUM OXIDE AND METHOD FOR MANUFACTURING IT | |
DE656961C (en) | Lining of rotary tube furnaces for burning cement or lime | |
DE849820C (en) | Dry process for the production of refractory bricks from dolomite or lime | |
AT78552B (en) | Process for making refractory articles. | |
DE565889C (en) | Process for the production of highly refractory bricks | |
DE1211980B (en) | Process for the manufacture of silica stones | |
DE535605C (en) | Process for the manufacture of refractory bricks | |
EP0135526B1 (en) | Refractory lining for coal gasifiers |