DE1083289B - Cleaning device to prevent the build-up of iron bears in the exhaust gas ducts of converters when hot metal is blown - Google Patents
Cleaning device to prevent the build-up of iron bears in the exhaust gas ducts of converters when hot metal is blownInfo
- Publication number
- DE1083289B DE1083289B DED25692A DED0025692A DE1083289B DE 1083289 B DE1083289 B DE 1083289B DE D25692 A DED25692 A DE D25692A DE D0025692 A DED0025692 A DE D0025692A DE 1083289 B DE1083289 B DE 1083289B
- Authority
- DE
- Germany
- Prior art keywords
- cleaning device
- pipe walls
- converters
- exhaust ducts
- cleaning
- 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.)
- Pending
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
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4693—Skull removal; Cleaning of the converter mouth
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Incineration Of Waste (AREA)
- Cleaning In General (AREA)
Description
Reinigungsvorrichtung zum Verhindern des Ansetzens von Eisenbären in den Abgasschächten von Konvertern beim Verblasen von Roheisen Die Erfindung betrifft eine Reinigungsvorrichtung zum Verhindern des Ansetzens von Eisenbären in den Abgasschächten von Konvertern beim Verblasen von koheisen. Die Erfindung besteht darin, daß die Rohrwände der Abgasschächte mit an sich bekannten Rüttelvorrichtungen mechanischer oder akustischer Art versehen sind. Der Betrieb dieser erfindungsgemäßen Reinigungsvorrichtung an den Rohrwänden der Abgasschächte besteht darin, daß diese gerüttelt, geschwungen oder geschlagen werden. Dabei kann die Reinigungsbewegung quer zur Achsrichtung oder in dieser erfolgen.Cleaning device to prevent the attachment of iron bears in the exhaust shafts of converters when blowing pig iron. The invention relates to a cleaning device to prevent iron bears from settling in the exhaust ducts of converters when blowing carbon. The invention is that the Pipe walls of the exhaust ducts with mechanical vibrating devices known per se or acoustic type. The operation of this cleaning device according to the invention on the pipe walls of the exhaust ducts is that they are vibrated, swung or be beaten. The cleaning movement can be transverse to the axial direction or take place in this.
Beim Verblasen von Roheisen im Konverter, sei es beim Blasen von unten durch das Bad oder beim Blasen von Sauerstoff oder von mit Sauerstoff angereicherter Luft gegen die Badoberfläche, entsteht eine heftige Reaktion des Sauerstoffes mit dem Bad unter starker Kochbewegung, und es tritt ein Mitreißen von Eisenteilchen an die Mündung des Konverters und in die sich anschließenden Abgasschächte auf. Abgesehen vom Eisenverlust wird der Betrieb des Konverters dadurch beeinträchtigt, und das Entfernen dieser sogenannten Eisenbären ist schwierig, zeitraubend und häufig ohne Zerstörung der feuerfestesten Auskleidung des Konverters bzw. Beschädigung der Rohre des Abgaskamins nicht möglich. Derartige Ansätze erreichen teilweise mehrere Tonnen Gewicht und gefährden das Personal sowohl beim vorsätzlichen Abstoßen wie beim unerwarteten Ab- lösen.When hot metal is blown in the converter, be it when blowing from below through the bath or when blowing oxygen or oxygen-enriched air against the bath surface, a violent reaction of the oxygen with the bath occurs with a strong boiling movement, and entrainment occurs Iron particles at the mouth of the converter and in the adjoining exhaust ducts. Apart from the loss of iron, this affects the operation of the converter and the removal of these so-called iron bears is difficult, time-consuming and often impossible without destroying the refractory lining of the converter or damaging the pipes of the exhaust stack. Such approaches sometimes weigh several tons and endanger the personnel both if they are deliberately pushed off or if they are unexpectedly removed.
Die Verwendung gewöhnlicher Kühlrohrwände in den Abgasschächten hat sich als ungeeignet erwiesen. Selbst ein Aneinandersetzen von Vierkantrohren schloß das Festsetzen des Eisens nicht aus, da bereits die zwischen den Vierkantrohren befindliche kleine Furche Anlaß zum Ansetzen des Bären war.The use of ordinary cooling pipe walls in the exhaust ducts has proved unsuitable. Even a juxtaposition of square tubes closed the fixing of the iron does not stop there, since the between the square tubes the small furrow was the reason for the bear to attach.
Im Dampfkesselbau sind bereits Rüttelvorrichtungen mechanischer oder akustischer Art bekannt, mit denen vorhandene Ruß- und Ascheansätze abgeschlagen oder durch dauerndes Rütteln das Ansetzen solcher Ablagerungen verhindert wird. Eine solche Einrichtung vermeidet die beim bisherigen Abschlagen aufgetretenen Nachteile und ermöglicht eine zeit- und kostensparende Reinigung. Durch die an sich bekannten Rüttelvorrichtungen mechanischer oder akustischer Art wird das Ansetzen eines Bären an den Konverterkaminen schon in kleinsten Teilen verhindert. Dabei können nach der Erfindung die gesamten Rohrwände oder einzelne Teile davon periodischen oder aperiodischen Schwingungen unterworfen werden. Um durch Resonanz größere Schwingungsausschläge oder geringere Anfachkräfte zu erzielen, ist es zweckmäßig, die Rohrwände in solche Schwingungen zu versetzen, die der Eigenfrequenz der Heizflächen entsprechen. Bei Verwendung akustischer Schwingungen bzw. von Ultraschall sind Schwinger mit niedriger Frequenz und hoher Energie zu bevorzugen.In steam boiler construction, vibrating devices are already mechanical or acoustic type known, with which existing soot and ash deposits knocked off or the build-up of such deposits is prevented by constant shaking. Such a device avoids the disadvantages that occurred with the previous knocking off and enables time and cost saving cleaning. By the known Vibrating devices of a mechanical or acoustic type are used to attach a bear even the smallest parts prevented at the converter chimneys. You can after of the invention, the entire pipe walls or individual parts thereof periodic or aperiodic vibrations are subjected. To achieve greater oscillation amplitudes through resonance or to achieve lower leveling forces, it is advisable to place the pipe walls in such To move vibrations that correspond to the natural frequency of the heating surfaces. at The use of acoustic vibrations or ultrasound are vibrators with a lower level Prefer frequency and high energy.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED25692A DE1083289B (en) | 1957-05-28 | 1957-05-28 | Cleaning device to prevent the build-up of iron bears in the exhaust gas ducts of converters when hot metal is blown |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED25692A DE1083289B (en) | 1957-05-28 | 1957-05-28 | Cleaning device to prevent the build-up of iron bears in the exhaust gas ducts of converters when hot metal is blown |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1083289B true DE1083289B (en) | 1960-06-15 |
Family
ID=7038627
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DED25692A Pending DE1083289B (en) | 1957-05-28 | 1957-05-28 | Cleaning device to prevent the build-up of iron bears in the exhaust gas ducts of converters when hot metal is blown |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1083289B (en) |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE311117C (en) * | ||||
DE6446C (en) * | E. HÄNEL JR., Fabrikbesitzer, in Sudenburg-Magdeburg | Charcoal glowing cylinder with an inner heating tube | ||
DE7160C (en) * | A. LOCQUENEAUX, Bäcker, in La-Ferte-Chevresis (Aisne), Frankreich | Bottle washer | ||
CH154299A (en) * | 1931-03-12 | 1932-04-30 | Sulzer Ag | Device for cleaning the tubes of heat exchangers such as evaporators and superheaters. |
DE560705C (en) * | 1931-03-21 | 1932-10-06 | Borsig G M B H A | Device for removing fly ash and other combustion residues from pipe coils |
DE719718C (en) * | 1937-11-16 | 1942-04-15 | Mont Kessel Herpen & Co K G | Device for removing dirt on the flue gas side from heating surfaces formed from pipe coils |
FR890962A (en) * | 1942-02-13 | 1944-02-23 | Mont Kessel | Fireplace with a grid made up of mobile tubes cooled by water |
US2550676A (en) * | 1945-06-20 | 1951-05-01 | Dalin David | Combined waste-heat boiler and chemical recovery unit |
DE851498C (en) * | 1944-06-10 | 1952-10-06 | Mont Kessel Herpen & Co K G | Steam generator with partitions dividing the combustion chamber |
FR1045678A (en) * | 1950-12-29 | 1953-11-30 | Method and device for cleaning and, more particularly for removing dust from external heat exchange surfaces of tubes, coils, or the like |
-
1957
- 1957-05-28 DE DED25692A patent/DE1083289B/en active Pending
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE311117C (en) * | ||||
DE6446C (en) * | E. HÄNEL JR., Fabrikbesitzer, in Sudenburg-Magdeburg | Charcoal glowing cylinder with an inner heating tube | ||
DE7160C (en) * | A. LOCQUENEAUX, Bäcker, in La-Ferte-Chevresis (Aisne), Frankreich | Bottle washer | ||
CH154299A (en) * | 1931-03-12 | 1932-04-30 | Sulzer Ag | Device for cleaning the tubes of heat exchangers such as evaporators and superheaters. |
DE560705C (en) * | 1931-03-21 | 1932-10-06 | Borsig G M B H A | Device for removing fly ash and other combustion residues from pipe coils |
DE719718C (en) * | 1937-11-16 | 1942-04-15 | Mont Kessel Herpen & Co K G | Device for removing dirt on the flue gas side from heating surfaces formed from pipe coils |
FR890962A (en) * | 1942-02-13 | 1944-02-23 | Mont Kessel | Fireplace with a grid made up of mobile tubes cooled by water |
DE851498C (en) * | 1944-06-10 | 1952-10-06 | Mont Kessel Herpen & Co K G | Steam generator with partitions dividing the combustion chamber |
US2550676A (en) * | 1945-06-20 | 1951-05-01 | Dalin David | Combined waste-heat boiler and chemical recovery unit |
FR1045678A (en) * | 1950-12-29 | 1953-11-30 | Method and device for cleaning and, more particularly for removing dust from external heat exchange surfaces of tubes, coils, or the like |
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