DE474594C - Process to increase the temperature and the reducing power of the converter exhaust gases - Google Patents
Process to increase the temperature and the reducing power of the converter exhaust gasesInfo
- Publication number
- DE474594C DE474594C DEE31100D DEE0031100D DE474594C DE 474594 C DE474594 C DE 474594C DE E31100 D DEE31100 D DE E31100D DE E0031100 D DEE0031100 D DE E0031100D DE 474594 C DE474594 C DE 474594C
- Authority
- DE
- Germany
- Prior art keywords
- temperature
- exhaust gases
- increase
- converter exhaust
- reducing power
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/30—Regulating or controlling the blowing
- C21C5/34—Blowing through the bath
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Description
Verfahren zur Erhöhung der Temperatur und der Reduktionskraft der Konverterabgase Das Verfahren gemäß der Erfindung bezweckt, die Verwertung der Konverterabgase zu ermöglichen, wenn diese zur Vorreduktion von Erzen oder als Heizmittel verwendet «-erden sollen. Diese Möglichkeit wurde schon seit langer Zeit angestrebt, indem der Gebläseluft entweder Sauerstoff oder kohlenstoff- und wasserstoffhaltige Brennstoffe jeweils allein beigegeben wurden. Diese Mittel haben aber hinsichtlich der Erhöhung der Reduktionsfähigkeit` der Konverterabgase keinen Erfolg gehabt. Denn wenn der Gebläseluft Sauerstoff allein zugeführt wird, ergibt sich zwar eine Steigerung der Reaktionsintensität der Luft im - Stahlbade, wodurch die Temperatur des Bades steigt. Eine solche Temperatursteigerung kann jedoch über die bei dem üblichen Windfrischen am Schlusse des Blasens vorhandene Temperaturgrenze hinaus wegen der Gefahr des Wegschmelzens der Konverterausfütterung nicht zugelassen werden; d. h. also, die Betriebsverhältnisse gewähren nicht die 'Möglichkeit, mit Hilfe der Zuführung von an Sauerstoff angereicherter Gebläseluft allein die Temperatur der Abgase wesentlich zu erhöhen. Dazu kommt noch, daß durch- eine erhebliche Verminderung der Abgasmenge die durch die Sauerstoffanreicherung bedingte ''Wärme, welche die Konverterabgase selbst bei etwas höherer Temperatur aus dem Konverter hinausführen, in ihrer Gesamtheit geringer ist als beim gewöhnlichen Verfahren. Die alleinige Zuführung von kohlenstoff-und wasserstoffhaltigen Brennstoffen zur Gebläseluft kann auch den Erfolg nicht herbeiführen. Versuche haben, ergeben, daß in diesem Falle eine Erniedrigung der Temperatur der Konverterabgase eintritt, die als eine dunkle, qualmende, mit unv erbranntem Brennstoffstark vermischte Gasmasse dem Konverterhalse entströmen.Method of increasing the temperature and reducing power of the Converter exhaust gases The purpose of the method according to the invention is to utilize the converter exhaust gases if this is used for the pre-reduction of ores or as a heating medium «-To earth. This possibility has long been sought by the forced air either oxygen or fuels containing carbon and hydrogen each was added alone. However, these funds have in terms of the increase the ability to reduce the converter exhaust was unsuccessful. Because if the Fan air is supplied with oxygen alone, although there is an increase in Reaction intensity of the air in the steel bath, which increases the temperature of the bath. Such a temperature increase can, however, exceed that of the usual wind freshening existing temperature limit at the end of blowing because of the risk of Melting away of the converter lining are not permitted; d. H. so the Operating conditions do not grant the 'possibility of using the supply of oxygen-enriched fan air alone the temperature of the exhaust gases is significant to increase. In addition, there is a considerable reduction in the amount of exhaust gas the '' heat caused by the oxygen enrichment, which the converter exhaust gases lead out of the converter even at a slightly higher temperature, in its entirety is less than the usual method. The sole supply of carbon and hydrogen-containing fuels for forced air cannot bring about success either. Experiments have shown that in this case a lowering of the temperature of the Converter exhaust enters, which is strong as a dark, smoking, with unburned fuel mixed gas mass flow out of the converter neck.
Durch eingehende Versuche wurde festgestellt, daß der Erfindungszweck nur erreicht werden kann, wenn die beiden Maßnahmen vereint angewendet werden. Es entsteht dann eine intensiv weißgelb gefärbte Flamme von hoher Leuchtkraft und Strahlungsfähigkeit. Diese Erscheinung zeigt an, daß in der Flamme eine äußerst hohe Temperatur herrscht, und daß in ihr beträchtliche Mengen von feinen Kohlenstoffteilchen zum intensiven Glühen erhitzt worden sind. Eine solche Flamme kann nur dadurch entstehen, daß beträchtliche Teile des Sauerstoffs der Gebläseluft unverbraucht durch das Bad hindurchgehen und erst oberhalb desselben mit entsprechenden Mengen der dem Winde zugesetzten Brennstoffe in Reaktion treten. Durch die gleichzeitige Zuführung von kohlenstoff- und wasserstoffhaltigen Brennstoffen und von mit Sauerstoff angereicherter Verbrennungsluft wird ein ganz überraschender neuer Effekt erzielt, der bei der einzelnen Anwendung der beiden genannten Mittel nicht erreicht werden kann, und der allein geeignet ist, der Flamme, die aus dem Konverter herausschlägt, diejenigen Eigenschaften zu geben, die die Konverterabgase gleichzeitig reaktionsfähiger und heizkräftiger machen, so.daß sie in erheblich besserer «'eise als normale Konverterabgase zur Reduktion von Eisenerzen geeignet sind.Thorough experiments have shown that the purpose of the invention can only be achieved if the two measures are applied together. It This creates an intense, white-yellow flame with high luminosity and radiant power. This phenomenon indicates that there is an extremely high temperature in the flame, and that in it considerable quantities of fine carbon particles to the intense Glow have been heated. Such a flame can only arise when considerable Part of the oxygen in the forced air will pass through the bath unused and only above it with corresponding amounts of the fuels added to the winch react. Due to the simultaneous supply of carbon and hydrogen Fuels and oxygen-enriched combustion air becomes a whole surprising new effect achieved with the individual application of the two mentioned means not can be achieved and the alone suitable is, the flame that strikes out of the converter to those properties that make the converter exhaust gases more reactive and more heated at the same time, so that it works in a considerably better way than normal converter exhaust gases for reduction of iron ores are suitable.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEE31100D DE474594C (en) | 1923-12-19 | 1923-12-19 | Process to increase the temperature and the reducing power of the converter exhaust gases |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEE31100D DE474594C (en) | 1923-12-19 | 1923-12-19 | Process to increase the temperature and the reducing power of the converter exhaust gases |
Publications (1)
Publication Number | Publication Date |
---|---|
DE474594C true DE474594C (en) | 1929-04-09 |
Family
ID=7074876
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEE31100D Expired DE474594C (en) | 1923-12-19 | 1923-12-19 | Process to increase the temperature and the reducing power of the converter exhaust gases |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE474594C (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE763238C (en) * | 1938-03-06 | 1953-01-26 | August Thyssen Huette A G | Process for the production of Thomasstahl with nitrogen contents below 0.01% |
DE1214714B (en) * | 1954-04-06 | 1966-04-21 | Waagner Biro Ag | Process for the combustion of the carbon monoxide-containing exhaust gases and fumes formed in oxygen-blowing converters used in steel production |
DE2942450A1 (en) * | 1979-10-05 | 1981-04-16 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Gasification of carbonaceous materials - which are injected with oxidants into bath of molten metal, to mfr. carbon mon:oxide and hydrogen |
DE3031680A1 (en) * | 1980-08-22 | 1982-03-11 | Klöckner-Werke AG, 4100 Duisburg | METHOD FOR GAS GENERATION |
-
1923
- 1923-12-19 DE DEE31100D patent/DE474594C/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE763238C (en) * | 1938-03-06 | 1953-01-26 | August Thyssen Huette A G | Process for the production of Thomasstahl with nitrogen contents below 0.01% |
DE1214714B (en) * | 1954-04-06 | 1966-04-21 | Waagner Biro Ag | Process for the combustion of the carbon monoxide-containing exhaust gases and fumes formed in oxygen-blowing converters used in steel production |
DE2942450A1 (en) * | 1979-10-05 | 1981-04-16 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Gasification of carbonaceous materials - which are injected with oxidants into bath of molten metal, to mfr. carbon mon:oxide and hydrogen |
DE3031680A1 (en) * | 1980-08-22 | 1982-03-11 | Klöckner-Werke AG, 4100 Duisburg | METHOD FOR GAS GENERATION |
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